Device to actuate load, transport facility with this device and method to control said device

FIELD: transport.

SUBSTANCE: invention relates to transport facilities comprising load actuator. Proposed device comprises power accumulator, step-up device to increase voltage from said power accumulator, actuator and control device. Transport facility comprises ICE, rotary electric machine and load actuator. Proposed method consists in generating request for starting rotary electric machine on starting ICE, limiting the voltage increase rate by step-up device when request for ICE start is fulfilled.

EFFECT: lower power losses on starting ICE.

16 cl, 9 dwg

 

The technical field

The present invention relates to a device for driving a load, the vehicle comprising a device for driving a load, and control method for the device driving the load. In particular, the present invention relates to a control device for driving a load, which results in the motion of the rotating electric machine that can run the internal combustion engine.

The level of technology

In Japanese open laid patent 2005-237149 disclosed device power supply for the vehicle. This device is the power supply for a vehicle includes a battery, a boost Converter and a node of the starter to start the engine. Battery boost Converter and site starter is connected to a power supply line, which provides the supply voltage to an electrical load.

When the boost Converter is inactive, the power supply line is supplied the output voltage of the battery. When the boost Converter is active in the power supply line supplied voltage, high step-up Converter. Boost Converter operates periodically in accordance with the period of operation of the site the article is of Rara. In particular, the voltage applied to the node starter, enhanced step-up Converter in this device, power supply to the vehicle when the engine is running with node starter.

When running boost Converter losses by increasing the Converter, as well as losses in the inverter, designed for the propulsion of motor starter, increase. Therefore, in the case of very low temperatures, such that the output power of the battery is greatly reduced and the resistance to turning of the motor shaft increases, for example, power for the propulsion of motor starter during starting of the engine may be so low that the engine is running would be impossible.

The invention

In view of the foregoing, the present invention is the provision of a device driving a load, comprising increasing device that can reduce the power consumption, to ensure the power of the engine start, and the vehicle includes a device for driving a load.

Another objective of the present invention is the provision of a control method for a device driving a load, comprising increasing device capable of reducing power loss for what garantirovany power start the engine.

According to the present invention, the device driving the load, can result in the movement of a rotating electric machine having a rotating shaft connected with the output shaft of the internal combustion engine, includes a device for energy storage, which increases the device, the device driving and control device. Increasing the device is configured to increase the voltage from the device for energy storage. The device driving receives the output voltage from increasing device for driving a rotating electric machine. The control device controls the Overdrive device. The control device controls the step-up device so that the speed of increase of the voltage step-up device is limited to be below a preset value, when the rotating electric machine is driven to start the internal combustion engine.

Preferably, the specified value is determined so that the output voltage raising device was essentially equal to the voltage of the energy storage.

In addition, the control device preferably stops the raising device when the internal combustion engine starts.

predpochtitelno the control device controls the step-up device, to the speed of voltage increase was limited to be below a preset value, when the output power of the energy storage is below the threshold value.

More preferably the threshold value is determined on the basis of the power required to start the internal combustion engine rotating electric machine.

Preferably, the control unit controls the step-up device so that the speed of voltage increase was limited to be below a preset value, when the temperature of the device energy storage below the set temperature.

In addition, the control device preferably controls the step-up device so that the speed of voltage increase was limited to be below a preset value, when the temperature of the internal combustion engine is below a predetermined temperature.

Preferably the device energy storage is made in the form of a lithium-ion rechargeable battery.

According to the present invention, the vehicle includes an internal combustion engine, a rotating electric machine having a rotating shaft connected with the output shaft of the internal combustion engine, and device for driving a load, shown above, is capable of bring the in the motion of the rotating electric machine.

Additionally, according to the present invention is a control method for a device driving a load oriented control method for a device driving a load, can result in the movement of a rotating electric machine having a rotating shaft connected with the output shaft of the internal combustion engine. Device for driving a load includes a device for energy storage, which increases the device and the device driving. Increasing device configured to increase voltage from a device for energy storage. The device driving receives the output voltage from increasing device for driving a rotating electric machine. The control method includes the steps that determine whether a request to move the rotating electric machine to start the internal combustion engine, and limit the rate of rise of voltage step-up device so that it was below a preset value, when it is determined that the request to start the internal combustion engine was made.

Preferably, the specified value is determined so that the output voltage was essentially equal to the voltage from the accumulation device e is ergie.

Preferably the step of limiting the rate of increase of the voltage raising device is stopped when it is determined that the request to start the internal combustion engine was made.

Preferably the control method for a device driving a load additionally includes the stage, which determines whether the output power devices for energy storage is below the threshold. When it is determined that the output power is below the threshold, the rate of voltage increase is limited to be below a preset value during speed limit overvoltages.

More preferably the threshold value is determined on the basis of the power required to start the internal combustion engine rotating electric machine.

Preferably the method further includes the step, which determines whether the device temperature of the accumulator is below a predetermined temperature. When it is determined that the temperature of the device energy storage is below a predetermined temperature, rate of rise of voltage is limited to be below a preset value during speed limit overvoltages.

More preferably the method additionally includes the stage at which the Ohm determine whether the temperature of the internal combustion engine is below a predetermined temperature. When it is determined that the temperature of the internal combustion engine is below a predetermined temperature, rate of rise of voltage is limited to be below a preset value during speed limit overvoltages.

According to the present invention the output voltage raising device is reduced, since the rate of increase of the voltage step-up device is limited to a value below the prescribed value so as to be below a preset value, when the rotating electric machine is driven to start the internal combustion engine. Accordingly, the loss of which the device is reduced. In addition, losses in the device driving, receiving the output voltage from the boosting device is also reduced.

According to the present invention can provide sufficient power required to start the internal combustion engine. As a result, even in conditions of extremely low temperatures, when the output power of the energy storage is greatly reduced, and the resistance of the cranking of the internal combustion engine increases, it is possible to provide the power needed to run the engine with which orania. In addition, you can reduce the size of the device energy storage in accordance with the present invention.

Brief description of drawings

Figure 1 - the complete block diagram of a vehicle with hybrid drive, is presented as an example of a vehicle, which includes the device driving the load according to the first variant implementation of the present invention.

Figure 2 - functional block diagram of the ECU shown in figure 1.

Figure 3 is a graph representing the relation between temperature and output power devices for energy storage.

4 is a graph representing the relationship between SOC and output devices for energy storage.

5 is a logical block diagram showing the configuration management node management engine start, shown in figure 2.

6 is a detailed functional block diagram of the control node of the Converter, shown in figure 2.

7 is a logical block diagram showing the control step-up Converter in the start mode of the engine according to the second variant implementation.

Fig is a logical block diagram showing the control step-up Converter in the start mode of the engine according to the third variant of implementation.

Figure 9 is a logical block diagram, demonstrating the I control step-up Converter in the start mode of the engine according to the fourth variant implementation.

Preferred embodiments of the inventions

Below will be described in detail embodiments of the present invention with reference to the drawings. In the drawings the same or corresponding elements have the same symbols, and their description will not be repeated. [The first version of the implementation]

Figure 1 shows the complete block diagram of a vehicle with hybrid drive, is presented as an example of a vehicle, which includes the device driving the load according to the first variant implementation of the present invention. According to figure 1, the vehicle 100 with a hybrid drive includes a wheel 2, the mechanism 3 power distribution, engine 4 and motor generators MG1 and MG2. The vehicle 100 with a hybrid drive additionally includes a device for energy storage, boost Converter 10, inverters 20 and 30, the capacitors C1 and C2, power supply lines PL1 and PL2, the grounding line SL, the e-node 60 control (hereinafter referred to as "ECU"), the sensors 70, 72 and 74 of the voltage sensors 76, 78 and 80 current and sensors 82, 84 temperature.

Mechanism 3 distribution of power is connected to the engine 4 and motor generators MG1 and MG2 to the distribution of power between them. For example, as a mechanism 3 power distribution can use the with the planetary gear mechanism, includes three rotating shaft gears, the planetary carrier and the crown gear. These three rotating shaft connected to the rotating shafts of engine 4 and motor generators MG1 and MG2, respectively. For example, passing the crankshaft of the engine 4 through the hollow center of the rotor of motor generator MG1, you can install the mechanical connection mechanism 3 power distribution from the engine 4 and motor generators MG1 and MG2.

The rotating shaft of motor generator MG2 is connected to the wheel 2 via a not shown gear or polovoy gear. In addition, gearing for rotating the shaft of motor generator MG2 may also optionally be built into the mechanism 3 power distribution.

Motor-generator MG1 is built into the vehicle 100 with a hybrid drive, working as a motor that can start the engine 4, as well as a power generator, which can generate power using the driving force of the engine 4 after starting the engine 4. Motor-generator MG2 is built into the vehicle 100 with a hybrid drive, working as a motor, which can result in the movement of the wheel 2.

The device is energy storage, which is the source of DC power, which can be charged and discharged. For example, it can be performed in the de NiMH, lithium-ion rechargeable battery, etc. the Unit of energy accumulation In supplies DC current power line PL1 power supply. Device energy storage takes In energy DC output from boost Converter 10 in line PL1 power supply for charging.

The sensor 70 detects the voltage voltage VB of the device energy storage to supply ECU 60 detectionin voltage VB. The sensor 80 detects current current IB, goes in and out to/from the device energy storage to supply ECU 60 detectionin current IB. The sensor 82 detects temperature of the temperature TV of the device energy storage to supply ECU 60 detektirovanii temperature. The sensor 80 current may be provided on line PL1 power supply.

The capacitor C1 is connected between line PL1 power supply line SL ground to smooth out voltage fluctuations between line PL1 power supply line SL to the ground. The sensor 72 detects the voltage voltage VL on the capacitor C1 to supply ECU 60 detectionin voltage VL.

Boost Converter 10 includes transistors Q1 and Q2 npn-type, the diodes D1 and D2 and the inductor L. the Transistors Q1 and Q2 npn type connected in series between the line PL2 power supply line SL to the ground. Diodes D1 and D2 connected to the opposite-parallel the transistors Q1 and Q2 npn-type, respectively. The inductor L is connected between line PL1 power supply and a common point of transistors npn-type Q1 and Q2.

Boost Converter 10 boosts the voltage line PL1 power supply line PL2 power supply high voltage based on signal PWC from ECU 60. In particular, the boost Converter 10 stores the current, when the transistor Q2 npn-type is opened, in the form of magnetic field energy in the inductor L, and releases the stored energy in the line PL2 power supply through the diode D1 when the transistor Q2 npn-type closed, to increase the voltage line PL1 power supply.

Since the energy stored in the inductor L increases with increasing time of the open state of the transistor Q2 npn-type, you can get energy higher voltage. With increasing time of the open state of the transistor Q1 npn-type voltage power supply line PL2 is reduced. By adjusting the activation time of the transistors Q1 and Q2 npn-type, you can set the line voltage PL2 power at an arbitrary voltage level, at least, the voltage on the power line PL1.

The capacitor C2 is connected between the line PL2 power supply line SL ground to smooth out voltage fluctuations between line PL2 power supply line SL to the ground. The sensor 74 detects the voltage voltage VH on the capacitor to supply ECU 60 detectionin voltage VH.

The motor-generators MG1 and MG2 with corresponding inverters 20 and 30. The inverter 20 drives the motor generator MG1 in the motor mode or in generator mode based on the signal PWI1 from the ECU 60. The inverter 30 drives the motor-generator MG2 in motor mode or in generator mode based on the signal PWI2 from the ECU 60.

The sensor 76 detects the current motor current MCRT1 flowing in the motor-generator MG1 to supply ECU 60 detectionin the motor current MCRT1. The sensor 78 detects the current motor current MCRT2 flowing in the motor-generator MG2, to supply ECU 60 detectionin the motor current MCRT2. The sensor 84 detects temperature the temperature of THE engine 4 to supply ECU 60 detektirovanii temperature TE. The sensor 84 temperature can determine the temperature of the engine 4, detektywa the temperature of the engine coolant 4.

The ECU 60 receives the voltage VL and VH from the sensors 72 and 74 of the voltage, respectively, and receives the currents MCRT1 and MCRT2 of motor from sensors 76 and 78 current, respectively. The ECU 60 also takes values TR1 and TR2 adjustment of torque and values MRN1 and MRN2 of motor speed motor-generators MG1 and MG2 from the not shown external ECU. The ECU 60 optionally accepts a voltage VB, the current IB and temperature TV from the sensor 70 voltage sensor 80 current sensor 82 temperature, respectively, and the temperature sensor 84 temperature the tours.

The ECU 60 generates signals PWC, PWI1 and PWI2 for driving boost Converter 10 and the motor-generators MG1 and MG2, respectively, on the basis of the received signal and provides the generated signals PWC, PWI1 and PWI2 boost Converter 10 and inverters 20 and 30, respectively.

Figure 2 shows a functional block diagram of the ECU 60, represented in figure 1. According to figure 2, the ECU 60 includes a node 62 control engine start, node 64 of the inverter and the first and second nodes 66 and 68 of the inverter control.

When the engine is running 4 node 62 control start engine determines whether the allowable output power devices for energy storage In below a predetermined threshold power, in a way that will be described below on the basis of the temperature TV, the voltage VB and current IB devices In the energy storage and the temperature of THE engine 4. When the node 62 control the starting of the engine determines that the allowable output power of the device In the accumulator is less than the threshold power, signal CTL, which will be transmitted to the node 64 of the inverter is activated, prescribing the node 64 of the inverter to limit the rate of increase of the Converter 10 so that it was below the specified value.

When signal CTL from node 62 control the population by the start of the engine is inactive, node 64 of inverter generates signal PWC for opening/closing the Q1 and Q2 transistors npn-type boost Converter 10 in a way that will be described below, based on the values TR1 and TR2 adjustment torque values MRN1 and MRN2 of engine speeds and voltages VL and VH. The generated signal PWC is displayed on the boost Converter 10.

When signal CTL is active, the node 64 of inverter generates signal PWC for speed limits increase boost Converter 10 so that it was below a preset value, and outputs the generated signal PWC to boost Converter 10. This setpoint is provided to limit the increase with increase of the Converter 10 when starting the engine 4. The preset value is set to 1 or a value close to 1.

The first node 66 control inverter generates a PWM signal (pulse width modulation) for actuation of the inverter 20 based on the value TR1 adjust torque, current MCRT1 of motor and voltage VH to issue the generated PWM signal to the inverter 20 as a signal PWI1.

The second node 68 control inverter generates a PWM signal for actuation of the inverter 30 based on the value of TR2 adjust torque, current MCRT2 of motor and voltage V for the issuance of the generated PWM signal to the inverter 30 as a signal PWI2.

On the ECU 60 speed increase boost Converter 10 is restricted to be below a preset value in order to limit the increase step-up Converter 10, when the allowable output power devices for energy storage In below a predetermined threshold power when starting the engine 4. The reason for the increase in boost Converter 10 is restricted set forth below.

Power Rd, necessary to start the engine 4, can be expressed by the following equation.

where Pb is the power output device In energy storage, RS represents the power of charged capacitors C1 and C2, Pg represents the effective power of the motor generator MG1, Pm represents the effective power of the motor generator MG2, Lc represents the loss in boost Converter 10, Lg represents the losses in the inverter 20 and Lm represents the losses in the inverter 30.

By limiting the increase provided step-up Converter 10, it is possible to reduce the loss of Lc on increasing the Converter 10. Since the energy stored in a capacitor is proportional to the square of the voltage across the capacitor, reducing the voltage VH due to restrictions increase boost Converter 10 will lead to a decrease of the stored energy of the condensate is RA C2. The result is reduced power RS. Due to the losses in the inverter, which is proportional to the voltage, the lower voltage VH leads to lower losses Lg and Lm in inverters 20 and 30, to which the voltage VH.

Thus, limiting the increase step-up Converter 10 is extremely effective to provide the power Pg, necessary to start the engine 4. The first version of the implementation by limiting the raising action boost Converter 10 to provide power Rd in conditions of extremely low temperatures, when the allowable output power devices In the energy storage is reduced.

Figure 3 presents the relation between temperature and output power of the devices In the energy storage. Figure 3 the solid line represents the allowable output power devices In the energy storage. According to the drawing valid power output devices In the energy storage decreases with decreasing temperature In energy storage. In addition, by reducing the state of charge (SOC) devices In the energy storage power output devices In the energy storage will be below the nominal value, which is shown in figure 4. Therefore, the allowable output power devices In the energy storage also bude order to decrease at lower SOC.

In view of the above permissible output power devices In the energy storage is estimated on the basis of temperature and SOC devices In the energy storage in the first embodiment, when starting the engine 4. When the estimated allowable output power is below a predetermined threshold power Pth, represented by a dotted line, which increases the activity undertaken step-up Converter 10, is limited.

The threshold power Pth is determined in advance based on power Rd, necessary to start the engine 4. In particular, since power Rd, necessary to start the engine 4 can be estimated in advance, depending on the size of the engine 4 and motor generator MG1, the corresponding value in excess of power Rd, can be set as the threshold power Pth using the above equation (1).

Explain the reason for the threshold power Pth increases as a function of temperature reduction, shown in figure 3. Since the viscosity of the lubricating oil of the engine 4 increases when the temperature drops, the resistance to turning of the shaft increases. This leads to increasing power Pg, necessary to start the engine 4.

Figure 5 shows a logical block diagram describing the configuration of the control node 62 control engine start, p is establing in figure 2. The process in this logical flowchart is called from the main program, which is strictly periodically or every time a predetermined condition.

According to figure 5, the node 62 control start engine determines whether the query 4 start the engine (step S10). This query engine start is made on the basis of the operating state of the vehicle or SOC devices In the energy storage and the like, for example, not shown on the external ECU. When the node 62 control the starting of the engine determines that the request 4 engine start is not performed (NO at step S10), the control proceeds to step S80, passing a number of stages, as described below.

When at step S10 it is determined that the request 4 engine start is performed (YES at step S10), the node 62 start control unit receives the temperature TV of the device In energy harvesting sensor 82 temperature (step S20). Then the node 62 control start engine calculates SOC devices In the energy storage (step S30). SOC devices accumulate In energy can be calculated by a commonly known method using current IB and voltage VB, temperature TV and other devices accumulate energy. SOC devices In the energy storage may be calculated from the external ECU, so that SOC could do to node 62 control engine start with the outside EC.

Then the node 62 control start engine evaluates the allowable output power Rmah device of accumulation of energy on the basis of the temperature TV and SOC devices accumulate energy (step S40). As one way of assessing the allowable output power Rmah, the dependence of the permissible power output device of accumulation of energy on the temperature and the SOC can be pre-set in the form of a map on the basis of the relationship shown, for example, in figure 3 and 4, for the implementation of the assessment on the basis of the map.

Then the node 62 control start engine calculates the threshold power Pth on the basis of the power required to start the engine 4, the above-mentioned method (step S50). Node 62 control start engine determines whether the allowable output power Rmah devices accumulate In energy below the threshold power Pth (step S60).

When the node 62 control the starting of the engine determines that the allowable output power Rmah below the threshold power (YES at step S60), the signal CTL output node of the inverter 64 is activated. In accordance with the node 64 of the inverter controls the step-up Converter 10 so that the speed increase boost Converter 10 was limited to be below a preset value. So about the time, the rate of increase of the Converter 10 is limited to a level below a preset value (step S70).

When at step S60 it is determined that the allowable output power Rmah greater than or equal to the threshold power Pth (NO at step S60), the node 62 control the starting of the engine goes to step S80. Control returns to the main program.

Figure 6 illustrates a detailed functional block diagram of node 64 of the inverter presented in figure 2. According to Fig.6 node 64 of the inverter includes a host 102 calculation of the adjustment of the input voltage of the inverter, the node 104 of the computing time and the node 106 convert the PWM signal.

The node 102 calculation of the adjustment of the input voltage of the inverter calculates the optimum value (target value) of the input voltage of the inverter, i.e. the value of the Vcom voltage adjustment, based on the values TR1 and TR2 adjust the torque and speed values MRN1 and MRN2 of motor when the signal CTL from a not shown host 62 control the starting of the engine is inactive. The calculated adjustment Vcom voltage appears at the node 104 of the computing time.

The node 102 calculation of the adjustment of the input voltage of the inverter calculates the adjustment Vcom voltage so that the speed increase boost Converter 10 Ogre who was limited to so to be below a preset value, when the signal CTL is active. Calculated Vcom adjustment of the voltage output to the node 104 of the computing time.

The node 104 of the computing cycle calculates the duration is set to the voltage VH adjustment Vcom voltage based on the voltages VL and VH from the sensors 72 and 74 of the voltage, respectively, and adjusting the Vcom voltage node 102 calculation of the adjustment of the input voltage of the inverter. The calculated activation time arrives at the node 106 convert the PWM signal.

The node 106 convert the PWM signal generates a PWM signal for opening/closing of the transistors Q1 and Q2 npn-type boost Converter 10 on the basis of the time obtained from the node 104 of the computing time. The generated PWM signal is supplied to the transistors Q1 and Q2 npn-type boost Converter 10 as a signal PWC.

Note that the node 104 of the computing time can be set a predetermined time so that the speed increase boost Converter 10 was limited to be below a preset value, regardless of the adjustment voltage Vcom from node 102 calculations to adjust the input voltage of the inverter, when the signal is CTL, received from node 62 control engine start, active.

Thus, the ECU 60 controls the step-up Converter 10 so that the speed increase boost Converter 10 was limited to be below a preset value in the start mode of the engine 4 in the first embodiment. This helps to reduce the output voltage of boost Converter 10 (input voltage of inverters 20 and 30). Thus, it is possible to reduce losses by increasing the Converter 10 and inverters 20 and 30, and may also reduce the energy stored in the capacitor C2. According to the first variant implementation can provide sufficient power to start the engine 4. As a result, the power required to start the engine 4 can be ensured even in conditions of extremely low temperatures, when the output power of the devices In the energy storage is greatly reduced and the resistance to turning of the motor shaft 4 increases. In addition, you can reduce the size of the device is In energy storage.

[Second variant implementation]

The first version of the implementation is aimed at control step-up Converter 10, so that the rate of increase of the Converter 10 was limited to be below a preset value, when the allowable output power Rmah below then is the creation of a Pth power. In the second embodiment, the action of the boost Converter 10 is stopped, when the allowable output power Rmah below the threshold power Pth.

7 shows a logical block diagram showing the control step-up Converter 10 in the start mode of the engine according to the second variant of implementation. According to Fig.7. a process in this logical flowchart includes the steps S72 and set S74 instead of step S70 in a logical block diagram in figure 5.

In particular, when the step S60 it is determined that the allowable output power Rmah below the threshold power Pth (YES in step S60), the node 62 control the starting of the engine gives the signal CTL, which is displayed on the node 64 of the inverter. In accordance with the node 64, the inverter stops the boost Converter 10 (step S72). In particular, the node 64 of the inverter sets the transistor Q1 npn-type, corresponding to the upper arm, in a constantly open state and sets the transistor Q2 npn-type, the corresponding lower side, in the permanently closed state. Accordingly, the rate of increase of the Converter 10 is set to the lowest value of 1. Voltage VH reaches the same level as the voltage VB of the device In energy storage.

When at step S60 it is determined that a valid output is DNA power Rmah greater than or equal to the threshold power Pth (NO at step S60), node 62 control the starting of the engine gives the signal CTL to be output node 64 of the inverter. In accordance with this node 64 of the inverter resolves to the step-up Converter 10 to operate (stage set S74). In particular, the node 64 of the inverter controls the step-up Converter 10 in the usual manner based on the values TR1 and TR2 torque control and values MRN1 and MRN2 of motor speed.

According to the second variant of realization of the action of the boost Converter 10 is stopped when the engine 4, as presented above. Thus, thanks to easy operation is achieved the same positive effect as in the first embodiment.

[Third option exercise]

On Fig shows a logical block diagram showing the control step-up Converter 10 in the start mode of the engine according to the third variant of implementation. According TIG process in this logical block diagram includes the step S110 instead of steps S30-S60 logical block diagram shown in figure 5. In particular, after the reading of the temperature TV of the device In the energy accumulation at the step S20, the node 62 control start engine determines whether the temperature of the TV below a predetermined threshold value (step S110). This threshold is the value can be set to a proper temperature, corresponding significant reduction in the output power of the device In energy storage.

When the node 62 control the starting of the engine determines that the temperature of the TV below the threshold value (YES at step S110), the control proceeds to step S70, where the rate of increase of the Converter 10 is restricted to be below a preset value. When at step S110 it is determined that the temperature TV is equal to or above the threshold value (NO at step S110), the node 62 control the starting of the engine goes to step S80.

Thus, adjustment increase boost Converter 10 may be restricted by the condition of low temperature, when the output power of the devices In the energy storage is reduced. In addition, it simplifies the management when starting the engine 4.

[Fourth option exercise]

Figure 9 shows a logical block diagram showing the control step-up Converter 10 in the start mode of the engine according to the fourth variant implementation. According to Fig.9, the process shown in this logical block diagram, includes the steps S210 and S220 instead of steps S20, S60 in the logic block diagram on figure 5. In particular, when the step S10 it is determined that the request to start the engine 4 is performed, the node 62 control start engine reads the temperature of THE engine 4 with sensor 84 t is mperature (step S210).

Then the node 62 control start engine determines whether the temperature read THOSE below a predetermined threshold value (step S220). This threshold can be set to a proper temperature, corresponding to a significant increase in resistance to turning of the motor shaft 4.

When the node 62 control the starting of the engine determines that the temperature of THOSE below the threshold value (YES at step S220), the control proceeds to step S70, where the rate of increase of the Converter 10 is restricted to be below a preset value. When at step S220 it is determined that the temperature is equal to or above the threshold value (NO at step S220), the node 62 control the starting of the engine goes to step S80.

According to the fourth variant of the implementation of adjustment increase boost Converter 10 may be limited at low temperatures, when the resistance to turning of the motor shaft 4 increases. In addition, it allows you to simplify the management during engine start 4.

In the third and fourth embodiments, the implementation presented above, boost Converter 10 may stop, as in the second embodiment, instead of the control limit boost Converter 10, so that the rate of increase conversion on the indicator 10 was limited so to be below the specified value.

Although each of the above embodiments considers the case when the device driving load is part of a vehicle with hybrid drive, the present invention is applicable to any vehicle that includes a boost Converter, which can increase the voltage of a device for energy storage to supply to the motor starter. More specifically, in the case of a vehicle with an automatic engine shutdown, which automatically stops the engine when the vehicle is not moving, for example, on a red light, and then starts the engine by the engine starter when the start condition of the engine, it is desirable to effectively use the power as the engine starts often. The present invention is suitable for such vehicles with automatic engine shutdown.

In the above description, the engine 4 and motor generator MG1 corresponds to "internal combustion engine" and "rotating electrical machine", respectively, of the present invention. Boost Converter 10 and the inverter 20 are "raising device" and "device actuation respectively Nast is asego invention. In addition, the ECU 60 corresponds to the "control device" of the present invention.

It should be understood that disclosed here ways to implement the purposes of illustration, but in no way limiting. Scope of the present invention defined by the claims and not the foregoing description of embodiments, and is intended to include any modification that meets the scope and equivalents of the claims.

1. The device driving the load, can result in the movement of a rotating electric machine having a rotating shaft connected with the output shaft of the internal combustion engine, containing a device for energy storage, which increases the device made with the possibility to increase the voltage from these devices and energy storage, the device driving, receiving the output voltage of said boost device for the propulsion of the mentioned rotating electric machine, and a control device that controls the aforementioned step-up device so that the rate of increase of the voltage step-up device is limited to be below a preset value, when the said rotating electric machine is driven to start the internal combustion engine.

2. The device driving the load according to claim 1, in which the mentioned preset value is determined so that the output voltage was essentially equal to the voltage of these devices and energy storage.

3. The device driving the load according to claim 1 in which the said control device stops the raising device when the said internal combustion engine starts.

4. The device driving the load according to any one of claims 1 to 3, in which the said control device controls the step-up device so that the speed of voltage increase was limited to be below a preset value, when the output power of these devices and energy storage below the threshold value.

5. The device driving the load according to claim 4, in which the mentioned threshold value is determined based on the power required for the propulsion of the mentioned internal combustion engine by means of the mentioned rotating electric machine.

6. The device driving the load according to any one of claims 1 to 3, in which the said control device controls mentioned step-up device so that the said rate of voltage increase was limited to be below mentioned specified the values, when the temperature of these devices and energy storage below the set temperature.

7. The device driving the load according to any one of claims 1 to 3, in which the said control device controls mentioned step-up device so that the said rate of voltage increase was limited to be below mentioned given value, when the temperature of the above-mentioned internal combustion engine is below a predetermined temperature.

8. The device driving the load according to claim 1, in which the device energy storage is made in the form of a lithium-ion rechargeable battery.

9. A vehicle containing an internal combustion engine, a rotating electric machine having a rotating shaft connected with the output shaft of the mentioned internal combustion engine, and device for driving a load, can result in the movement of the mentioned rotating electric machine, and the said device driving a load includes a device for energy storage, which increases the device made with the possibility to increase the voltage from these devices and energy storage, the device driving, receiving the output voltage of said boost device to bring the Oia in motion referred to a rotating electric machine, and a control device that controls the aforementioned step-up device so that the said rate of rise of voltage mentioned Overdrive device was limited to be below mentioned given value, when the said rotating electric machine is driven to run the mentioned internal combustion engine.

10. Control method for a device driving a load, can result in the movement of a rotating electric machine having a rotating shaft connected with the output shaft of the internal combustion engine, and the said device driving a load includes a device for energy storage, which increases the device made with the possibility to increase the voltage from these devices and energy storage, and the device driving, receiving the output voltage of said boost device for the propulsion of the mentioned rotating electric machine, the control method includes the steps to determine if the request is to move the mentioned rotating electrical machines when starting the mentioned internal combustion engine, and limit the rate of rise of voltage mentioned step-up device, the button below mentioned given value, when it is determined that the request for starting the mentioned internal combustion engine was made.

11. Control method for a device driving a load according to claim 10, in which the mentioned preset value is determined so that the aforementioned output voltage was essentially equal to the voltage of these devices and energy storage.

12. Control method for a device driving a load according to claim 10, in which the mentioned increasing device is stopped when it is determined that the request for starting the mentioned internal combustion engine has been performed on the above-mentioned phase speed limit overvoltages.

13. Control method for a device driving a load according to any one of p-12, optionally containing phase, which determines whether the output power of these devices and energy storage is below the threshold, in which the said rate of voltage increase was limited to be below a preset value at the stage of the limitations mentioned the speed increase voltage when it is determined that the aforementioned output power below the threshold value.

14. Control method for a device driving a load according to item 13, in which the mentioned threshold value is determined on the basis of which Amnesty, required to run the mentioned internal combustion engine by means of the mentioned rotating electric machine.

15. Control method for a device driving a load according to any one of p-12, optionally containing phase, which determines whether the temperature of these devices and energy storage is below a predetermined temperature, in which the said rate of voltage increase was limited to be below a preset value at the stage of the limitations mentioned the speed increase voltage when it is determined that the temperature of these devices and energy storage below the set temperature.

16. Control method for a device driving a load according to any one of p-12, optionally containing phase, which determines whether the temperature of the above-mentioned internal combustion engine is below a predetermined temperature, in which the said rate of voltage increase was limited to be below a preset value at the stage of the limitations mentioned the speed increase voltage when it is determined that the temperature of the above-mentioned internal combustion engine is below a predetermined temperature.



 

Same patents:

FIELD: engines and pumps.

SUBSTANCE: invention relates to automotive electronic hardware, namely to ICE starting systems. Proposed combined starting system comprises storage battery (6), starter switching pull relay (8), starter (11), output 4 of generator unit serviceability control element, capacitive power storage (9), controlled key (10), microcontroller (5) with built-in voltage comparator and three varistors (1, 2, 3). Second output of capacitive power storage (9) is connected to negative pole of storage battery (6). Storage battery and aforesaid power storage are connected, via pull relay closing contacts, to stator (11) in starting. Positive terminal of storage battery (6) is connected to first terminal of first varistor (1). First output terminal of capacitive power storage is connected to first output terminal of second varistor (2). Output of generator unit serviceability control element (4) is connected to first output terminal of third varistor (3). Second output terminals of three varistors (1, 2, 3) are connected to negative output terminal of storage battery (6). Center output terminals of first (1) and second (2) varistors are connected to first and second of microcontroller comparator (5). Central output of third resistor (3) is connected to digital input of microcontroller (5). Microcontroller output is connected to control input of controlled key (10). Power contacts of the latter are connected in between positive output terminal of storage battery (6) and first output of capacitive power storage (9).

EFFECT: increased power capacity in ICE starting power storage.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: invention is related to the field of automobile electronics, namely to the field of electric starter start-up of internal combustion engines (ICE). System for start-up of internal combustion engine comprises starter, energy source, ignition lock contacts, traction relay, controlled switch, microcontroller with inbuilt voltage comparator, sensor of ICE crankshaft rotation frequency and source of reference voltage. The first output of traction relay winding is connected to negative output of energy source. Starter is connected to energy source via contacts of traction relay. Outputs of ICE crankshaft rotation frequency sensor and source of reference voltage are accordingly connected to the first and second inlets of microcontroller comparator. Output of microcontroller is connected to inlet of controlled switch control. Power contacts of controlled switch are connected between the second contact of ignition lock and the second output of traction relay winding. The first contact of ignition lock is connected to positive output of energy source.

EFFECT: energy saving during start-up and higher reliability in repeated start-ups of ICE.

1 dwg

FIELD: automotive industry; internal combustion engines.

SUBSTANCE: invention can be used in designing, manufacturing and operating automobiles powered by internal combustion engines. Proposed method and device to control start and stop of internal combustion engine (autostart) provides easy shutting down and starting of automobile engine even at short stops without any difficulty. According to proposed method, engine is shut down by short-time switching off of ignition system provided by additional switch installed for convenient use in automobile, for instance on floor under left foot of driver to the left from clutch pedal, and starting of engine is provided by pressing on accelerator pedal.

EFFECT: reduced fuel consumption and pollution of environment by exhaust gases, especially when driving along streets.

3 cl, 1 dwg

Off-line power unit // 2311722

FIELD: electrical engineering.

SUBSTANCE: proposed device designed for generating data on load (current) for each phase of off-line power unit generator within preset time interval and consumer load disconnection signal, as well as for stopping off-line power unit in case it goes beyond preset value has fuel-feed control mechanism, engine, generator, and load circuit breaker, as well as newly introduced three current sensors whose inputs are connected to respective outputs of generator circuit breaker, three comparators, three AND circuits, and timer.

EFFECT: enlarged functional capabilities.

1 cl, 1 dwg

FIELD: transport engineering; electrical equipment of automobiles.

SUBSTANCE: proposed electric starting system of engine contains storage battery, ignition and starter switch, capacitive energy storage, diode through which charging of capacitive energy storage is carried out, starter relay and electric starter. To provide delay of power supply to starter circuit from capacitive energy storage use is made of additionally installed relays to connect energy storage to starter and diode providing discharge of capacitive energy storage only through starter.

EFFECT: improved reliability of starter by delaying power supply to starter from energy storage and preventing collision of starter drive pinion and flywheel rim.

1 dwg

FIELD: transport engineering; electric starting of engine.

SUBSTANCE: proposed electric starting system of engine contains storage battery, ignition and starter switch, energy storage capacitor, diode, starter switch-on relay and electric starter. To provide delay of energy supply to starter supply circuit from energy storage capacitor the following devices are installed additionally: diode, relay to connect energy storage capacitor, voltage divides limiting current at comparator inputs, time setting chain consisting of capacitor and resistor, comparator connected by one of its inputs to said chain and by other input, to storage battery to provide comparing of voltage across both inputs, and power transistor controlled by signal from comparator output. Said power transistor controls relay connecting energy storage capacitor to starter.

EFFECT: improved reliability of starter operation by delaying support of energy from storage capacitor, prevention of impact loads in engagement of starter drive pinion and flywheel rim.

1 dwg

FIELD: transport engineering: power supply systems of vehicles with electric traction.

SUBSTANCE: invention is designed for power supply of streetcars and trolley buses. Proposed system is essentially stand-by power supply source for traction motors installed on vehicle. Said power supply source includes storage batteries and several superpower capacitors. Said capacitors are connected in series by means of system of change-over switches when vehicles is to move at its own power supply on de-energized section of contact system. Step-up voltage converter, thus formed, provides required power supply for traction motors. System precludes breakdown current loads on storage battery, provides reliable braking of vehicle and feeds energy into circuit.

EFFECT: improved reliability and enlarged operating capabilities.

1 dwg

FIELD: transport engineering.

SUBSTANCE: invention relates to electrical equipment of vehicles and it can be used for modification of mainline and shunting diesel locomotives of all types. According to invention, proposed starting system of diesel locomotive contains storage battery, device to cut off battery from locomotive electric circuit, electric starter, contacts of starting contactors, capacitive energy stores device and diode. Starter-generator or traction generator is used as electric starter. Capacitive energy storage device is made in form of parallel or parallel-series connected two-plate capacitors. Current-limiting resistor placed in charging circuit of capacitive energy storage device is shunted by diode at flow of energy accumulator discharge current. Proposed starting system is furnished with additional contactor with winding and making contacts first of which is placed in charging circuit of capacitive energy storage device, and control relay with winding and breaking contact. Winding of control relay is connected to capacitive energy storage device through contact of starting contactor. Winding of additional contactor is connected to locomotive circuit through series-connected breaking contact of control relay, first switch with breaking contact and second switch with making contact, second making contact of additional contactor being connected in parallel to the latter.

EFFECT: prevention of charging of capacitive energy storage device to higher voltage generated by locomotive charging generator after starting of diesel engine and keeping of energy storage device between startings at low voltage and, as a result, improved reliability and increased service life of starting system.

3 cl, 1 dwg

FIELD: transport engineering; garage electrical equipment.

SUBSTANCE: proposed device contains capacitive energy accumulator made in form of two capacitors with double electric layer. With thyristor and current-limiting resistor placed in charging circuit, first switch with making contact and semiconductor with unidirectional conduction shunting series-connected thyristor and resistor at flow of energy accumulator discharge current. Device is furnished with electromagnetic contactor whose breaking contacts provide parallel connection of capacitors, and first making contact, their series connection by at least two-terminal connector for connecting capacitors to electric system of object with internal combustion engine and electric starting system. Winding of contactor is connected to connector through series- connected voltage stabilizing diode, above-indicated first switch with making contact and second two-circuit switch with making contacts. Second making contact of contactor shunts circuit consisting of first switch and voltage stabilizing diode.

EFFECT: improved safety and convenience in operation owing to provision of automatic change over of capacitors from parallel into series connection when object with rated voltage of 24 V is connected to electric system.

6 cl, 1 dwg

FIELD: emergency start of internal combustion engine in case of failure of rotational speed sensor.

SUBSTANCE: Specification describes method of starting the internal combustion engine equipped with starter and rotational speed sensor whose output signal is proportional to rotational speed of internal combustion engine shaft. Provision is also made for measuring the onboard voltage of automobile power supply system for change (3) of voltage of storage battery during and after start of internal combustion engine. In the course of starting (1) the internal combustion engine with starter in operation, angular position of crankshaft is determined by change (3) in storage battery voltage.

EFFECT: possibility of determination of angular position of crankshaft in case of failure of rotational speed sensor by analyzing the storage battery voltage at starting the engine by means of starter.

8 cl, 2 dwg

FIELD: transport.

SUBSTANCE: invention relates to braking systems. Proposed device comprises logical control device, 1st and 2nd transducers. Said 1st transducer defines 1st present working position of transport facility. Said 2nd transducer defines the state of completely braked wheels. Logical control device transmits drive cut-in/cut-out signal to drive wheels. Proposed method consists in that front wheel drive is cut out if said logical control device receives signal about first preset working state of transport facility and completely braked wheels. Front wheel drive is kept cut-in if said logical control device receives signal about second preset working state and completely braked wheels.

EFFECT: selective uncoupling of engine and wheels with completely braked wheels.

17 cl, 2 dwg

FIELD: transport.

SUBSTANCE: invention relates to method of control over transport facility. Transport facility comprises motor, power transfer module, drive shaft rpm determination or calculation module, motor rpm determination module, rpm estimation module and transport facility stop estimation module. Proposed method comprises revealing if determined or calculated drive shaft rpm and motor rpm comply or do not comply with specs proceeding from determined or calculated drive shaft rpm. Drive shaft rpm is defined or calculated be drive shaft determination or calculation module. Motor rpm is determined by motor rpm determination module. It comprises also revealing if determined or calculated drive shaft rpm and motor rpm comply or do not comply with specs. Now, whether transport facility stopped or not, is estimated proceeding from estimated drive shaft rpm.

EFFECT: precise estimation of transport facility stop.

18 cl, 11 dwg

FIELD: transport.

SUBSTANCE: proposed transmission comprise two drive shafts 10, 11 whereto power is transferred from engine 1, driven shaft 13 whereto power is transferred from said drive shafts 10, 11, drive transfer mechanisms 14, 15, 16, 17, 18 arranged between drive shafts 10, 11 and driven shaft 13, and switch gear 19, 20, 21, 22. Drive shafts 10, 11 are arranged concentrically and linked together to revolve. Drive shafts 10, 11 are fitted parallel with driven shaft 13. First drive unit 3 is arranged aligned with drive shafts 10, 11. Second drive unit 4 is arranged aligned with driven shaft 13. First and second drive unites 3, 4 are interlinked to transfer power and vary its form on the path between themselves.

EFFECT: higher efficiency, reduced noise smooth variation of transmission gear ratio.

16 cl, 24 dwg

FIELD: transport.

SUBSTANCE: set of inventions relates to automotive control appliances. Method to control at least one active subsystem of vehicle chassis comprises determining normalised lengthwise and crosswise acceleration of vehicle. Driver style is estimated by calculating scalar descriptor of driving style on the basis of normalised accelerations, driving style is determined by comparing driving style descriptor with threshold value and subsystem operating state is set up according to determined driving style. Driving style descriptor calculation comprises the step whereat sum of squares of normalised accelerations is calculated. Motorised vehicle comprises chassis with at least one active subsystem and controller 11 to set up operating style of subsystem in compliance with driver's style estimated by comparing driving style descriptor with threshold value. Controller can calculate sum of squares of normalised accelerations.

EFFECT: valid determination of driving style, higher safety of driving.

10 cl, 4 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry, namely to automatic gearboxes. Proposed method consists in that on shifting from one gear to target gear, drive engine torque reduction, clutch torque and disengagement in automatic gearbox are coordinated. Engine torque and clutch torque are reduced so that they coincide in time. Clutch reaching slipping torque, engine torque is reduced. With current gear in, engine torque is transferred via slipping clutch to gearbox input shaft and engine torque is increased to target rpm. On disengaging clutch, previous gear is disengaged and engine torque is transferred via clutch to automatic gearbox input shaft.

EFFECT: reduced time interval of reaching maximum engine torque in gearshifting.

5 cl, 3 dwg

FIELD: machine building.

SUBSTANCE: facility consists of net less, than two hydro-drives of driving wheels with independent control, of parametre measurement system, of control computer system containing computer of mismatch of signals received from measurement system and base signals and of functional block of control signal generation. The measurement system determines parametres characterising normal conditions in a contact spot of a drive wheel with bearing surface. The computer of mismatch averages signals for each of measured parametres per specified operational time interval, determines average values of average signals for each driving axle, determines average values of average signals for the transmission on a whole, and calculates signals mismatch. The functional block of control signal generation corrects control signals by preliminary calculated increments for each control signal.

EFFECT: increased accuracy and reliability of facility operation.

6 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: facility consists of net less, than two hydro-drives of driving wheels with independent control, of parametre measurement system, of control computer system containing computer of mismatch of signals received from measurement system and base signals and of functional block of control signal generation. The measurement system determines parametres characterising normal conditions in a contact spot of a drive wheel with bearing surface. The computer of mismatch averages signals for each of measured parametres per specified operational time interval, determines average values of average signals for each driving axle, determines average values of average signals for the transmission on a whole, and calculates signals mismatch. The functional block of control signal generation corrects control signals by preliminary calculated increments for each control signal.

EFFECT: increased accuracy and reliability of facility operation.

6 cl, 5 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Proposed method consists in that parametres describing drive torque, drive rpm and normal force at contact surfaces are measured. Base signals are represented by transmission averaged signals calculated from signals averaged for preset operating time interval. Signals correspond to magnitudes of the like measured parametres on every active drive. Difference signals of comparison of torques are obtained by comparing averaged signals with base signals with due allowance for averaged signal describing normal force at contact spot and base signal for said parametres, for transmission on the whole. Difference signals of comparison of drive rpm are obtained by comparing averaged signals with base signals for particular parametre with due allowance for signal describing steering wheel turn angle averaged for that same time interval. Control signals are generated using preset functional ratios between obtained difference signals and signals describing controlled parameters.

EFFECT: higher efficiency.

8 cl, 6 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Proposed method consists in that parametres describing drive torque, drive rpm and normal force at contact surfaces are measured. Base signals are represented by transmission averaged signals calculated from signals averaged for preset operating time interval. Signals correspond to magnitudes of the like measured parametres on every active drive. Difference signals of comparison of torques are obtained by comparing averaged signals with base signals with due allowance for averaged signal describing normal force at contact spot and base signal for said parametres, for transmission on the whole. Difference signals of comparison of drive rpm are obtained by comparing averaged signals with base signals for particular parametre with due allowance for signal describing steering wheel turn angle averaged for that same time interval. Control signals are generated using preset functional ratios between obtained difference signals and signals describing controlled parameters.

EFFECT: higher efficiency.

8 cl, 6 dwg

FIELD: transport.

SUBSTANCE: invention relates to electric power supply for hybrid vehicles. Proposed device comprises first power supply, second power supply, electrical load, control device and diagnostics hardware. Note here that control device comprises first voltage conversion control device, diagnostics inhibit device to inhibit diagnostics in compliance with voltage check values equal to first voltage, device to control starting the engine at low temperature, second voltage conversion control device by setting check voltage equal to second voltage and device to permit starting of motion. Proposed method consists in that check voltage is set equal to first voltage. Diagnostics device operation is inhibited. Voltage converter is feed-back controlled. Motor excitation is controlled. Voltage converter is feed-back controlled by setting check voltage equal to second voltage. Diagnostics device operation inhibition is cancelled. Hybrid vehicle start is indicated.

EFFECT: reliable starting of hybrid vehicle engine.

6 cl, 8 dwg

FIELD: electrical equipment for electrified traction consists.

SUBSTANCE: proposed device has synchronous traction generator set in rotary motion by means of heat-engine shaft, first electric-power transmission gear control unit (driver's controller), first uncontrolled rectifier, off-line current inverter, traction slip-ring induction motor, current sensor of first uncontrolled rectifier, voltage sensor of third uncontrolled rectifier, traction synchronous generator excitation unit, third control unit, and microprocessor controller; traction induction motor shaft is coupled with axles of traction-vehicle moving wheels; two three-phase rotor windings of traction induction motor are shifted apart through 30 el. degrees and connected by means of series-interconnected second and third rectifiers to first uncontrolled rectifier; synchronous traction generator excitation unit is connected to first output of microprocessor controller by means of second control unit.

EFFECT: reduced cost, size, mass, and power requirement for cooling power transmission, enhanced reliability and efficiency of device.

1 cl, 7 dwg

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