Control system and vehicle diagnostics

 

(57) Abstract:

Usage: in systems of automatic control units and mechanisms of the vehicle, in particular a combustion engine, hydromechanical transmission, transfer case, locking differential, etc. and their control and diagnostics. The inventive control system and diagnostics provided with a Central on-Board controller. Local logic control device equipped with a multiplex unit diagnostic data to monitor and diagnose the operation of this control object, a first input connected to the output control signal of the Central on-Board controller via the memory block data with the second control signal output of the adder. The second input of the multiplexor unit diagnostic data is connected to the output information signal of the adder and its output to the first input of the Central on-Board controller. The sensors of the control object is performed analog to generate status signals corresponding object control vehicle and discrete for generating signals respectively critical and current state. 4 management units and mechanisms of the vehicle, in particular the internal combustion engine, hydromechanical transmission, transfer case, locking differential, etc. as well as their monitoring and diagnostics.

A device for automatic control of the units and mechanisms of the vehicle that contains the engine rail, fuel pump, kinematically associated with a continuously variable transmission including a hydrostatic transmission with controls, and actuators respectively Reiki fuel pump, hydraulic pump and motor. The device includes a divider connected to the flow meter, tachometer and through alostrael with logic and storage unit, to the inputs of the latter is connected to the meter and the unit of the angular velocity of the engine, the combination, respectively, the angular velocity of the motor and the speed of the vehicle, and the mode switch control device. The outputs of logic and memory unit connected node block engine, locks, continuously variable transmission, the switch and the control unit obsticales and switch. Amplifier control signals, respectively, the engine and hydraulic transmission, connected to the outputs of the nodes, their locks [1]

To needleye extreme point of holding the control modes of the engine and continuously variable transmission, due to the ability to implement only one mode, in particular the optimization mode of operation of the engine and hydrostatic transmission without taking into account changes of the external factors arising from the movement of the vehicle. In addition, the management continuously variable transmission is carried out with insufficient reliability, because the formation of the control signal does not fully take into account the statistical characteristics of the angular velocity.

Also known automatic control system and diagnostics of the vehicle containing the transducer of mechanical signals from the operator in the normalized electric signals, the local logic control unit having first and second ports, and the logical solver, the first output of which is connected to the first port connected through an amplifier control signal with the Executive unit changes modes of operation of the site or mechanism of the vehicle, and the logic of a casting device connected to the second port, and a state sensors mentioned site or mechanism [2]

According to the known technical solution is the signal from the speed sensor, which is a sum of constant and ne is the parallel code is delivered to the ports of the interface. Appeal to the ports of the interface occurs on the output signal from the microprocessor. Signal processing is performed by a microprocessor, the signals pass from the RAM and permanent storage devices via the address bus to the microprocessor. From the microprocessor signals are sent to the data bus. In storage device contains the program of the calculation of the coefficient of variation of speed of rotation of the pump wheel of the torque Converter hydro-mechanical transmission. The operational device is used to record the results of intermediate calculations, comparing the actual values of the coefficient of variation of the speed of the pump wheel with the given parameters. The timer at a certain time and control commands are organized in time-delays. With the increase of the coefficient of variation of the pump wheel in excess of the specified value at the output of digital to analog Converter signal occurs, which by means of the amplifier is activated valve unlock the torque Converter, which connects the clutch with a hydraulic tank, and the torque Converter razblokirovat.

The disadvantages of the known systems of automatic control and diagnostics transportacion:

thermal balance due to the inability of choosing the optimal load on the nodes and mechanisms of the vehicle and the organization for the hub of the cooling system of the power plant due to the redistribution of loads;

fuel savings due to the inability of the selection of the optimal mode of operation of the units and mechanisms of the vehicle, in particular a combustion engine, hydromechanical transmission, transfer case, locking differentials, etc.

increase the dynamic characteristics due to the lack of rapid response to changing external factors, such as changing the profile of the road, the road structure, etc.

emergency detection and localization of faults and exceptions failed unit system of process control.

The problem to which the present invention is directed, is to expand the technical capabilities of the control system by providing on the basis of the control-diagnostic system integrated system management nodes and mechanisms for self-learning and robotic (adaptive) systems, vehicle controls, allowing the floor the organization of system of cooling energy installation;

fuel economy due to the choice of the optimal operation mode;

increase the dynamic characteristics due to the rapid response to changing external factors, such as changing the profile of the road, the road structure, etc.

emergency detection and localization of faults and exclusion of the faulty unit from the management process.

the governance challenge for the electoral principle by the method of fuzzy logic.

as far as filling the information about the failures of forecasting is performed for stopping the vehicle.

To achieve the above technical result is known for the control and diagnosis system of a vehicle having at least one control object that contains the sensors of the control object, the transducer signals from the operator, the output of which is connected to the first input control signal of the adder local logical device control, the control signal output of the adder is connected with the Executive unit changes modes at least one control object is a vehicle, it is equipped with Central Bor the signal on set of analog and digital data, local logic control device equipped with a multiplex unit diagnostic data to monitor and diagnose the operation of this control object, a first input connected to the output control signal of the Central on-Board controller through the block data memory, configured to change the state address and tact, with the second control signal output of the adder, the second input of the multiplexor unit diagnostic data is connected to the output information signal of the adder and its output to the first input of the Central on-Board controller, the sensors of the control object is performed analog to generate status signals corresponding object control vehicle and discrete for generating signals respectively critical and current state, with analog sensors and digital sensors for generating signals of a critical state are connected respectively with the second and third inputs of the Central on-Board controller and discrete sensors for generating signals of the current state and discrete sensors for generating signals critical with the

In addition, the system can be equipped with additional discrete sensors to signal the current state of the local logical control device 4, the outputs of which are connected with the third input information signal multiplex unit diagnostic data.

In addition, the system can be equipped with additional analog and digital sensors for generating signals respectively critical and the current state of the at least one control object and at least one additional local logic control device, the number of which is equal to the number of control objects, the first input control signal of the adder additional local logic control unit connected to the transducer signals from the operator, the second input control signal of the adder is connected via the memory block with the output control signal of the Central on-Board controller, which is connected to the first input of the control signal of the multiplexor block additional local control unit, the output information signal of the adder is connected with the second input information is material to the onboard controller, the control signal output of adder additional local logic control unit connected to the actuating unit changes the operation modes of the control object, with analog sensors and digital sensors for generating signals of a critical state are connected respectively with the second and third inputs of the Central on-Board controller and discrete sensors for generating signals of the current state and discrete sensors for generating signals of a critical state is connected to the input of the information signal of the adder additional local logical unit management.

In addition, the system has additional discrete sensors for generating signals of the current state of additional local logical unit management, the outputs of which are connected with the third input information signal multiplex unit diagnostic data.

In addition, the system can be equipped with additional analog sensors and discrete for generating signals of the current and the critical state at least one control object, with analog sensors and disks inputs Central on-Board controller, and discrete sensors for generating signals of the current state and discrete sensors for generating signals of a critical state is connected to the input information signals of the adder of the local logical unit management.

These characteristics are essential and interrelated causal connection with the formation of the essential features that are necessary and sufficient to achieve the technical result.

In Fig. 1 shows a block diagram of the system control and diagnostics of the vehicle.

In Fig. 2 embodiment of the block diagram system control and diagnostics of the vehicle.

In Fig. 3 control system diagnostics and GMP vehicle.

In Fig. 4-the implementation of LLUU 4 and its links with other elements of the system control and diagnostics of the vehicle.

The invention is illustrated by a specific example of implementation, which, however, is not only possible, but clearly demonstrates the possibility of achieving a given set of features of a technical result.

The vehicle contains energy is transformator. Transmission kinematically connected with the propeller. Automatic control system and diagnosis the above objects of control of the vehicle consists of a transducer 1 signals (Fig. 1) coming from the operator 2, the output of which is connected to the first input control signal of the adder 3 local logical device management (LOU) 4. The output control signal of the adder 3 is connected with the Executive unit 5 changes the modes of operation of the first control object 6 of the vehicle.

The Central on-Board controller (PPM) 7 made in the form of programmable casting device for forming a control signal by combination of analog and discrete data. LLUU 4 equipped with the multiplexor unit 8 of the diagnostic data to monitor and diagnose the operation of this control object, a first input connected to the output of the control signal 7 PPM at the address connected through the block 9 data memory, which is configured to change the state address and tact, with the second input control signal of the adder 3. The second input of the multiplexor block 8 of the diagnostic data is connected to the output information SIA control analog 10 for forming the signal state of the corresponding object control vehicle and discrete 11, 12 for generating signals respectively critical and current state. Analog sensors 10 and discrete sensors 11 for generating signals of a critical state are connected respectively with the second and third inputs of information signals 7 PPM, and discrete sensors 12 for generating signals of the current state and discrete sensors 11 for generating signals of a critical state is connected with the third input of the information signal of the adder 3 LLUU 4.

To expand the functionality of the management system concerning the implementation of the diagnosis, as well as the use state information of the local logical unit control in the process control system management and diagnostic control object is made with additional discrete sensors 13 for generating signals of the current state of LLUU 4, whose outputs are connected to the third input of the information signal of the multiplexor block 8 of the diagnostic data.

In the case of performing system diagnostics and control in relation to the two control objects 14 analog and discrete 15, 16 sensors must be what its current status. While the control system is equipped with additional LUU 18. The total number of LLUU equal to the number of control objects. The first input control signal from the adder 19 additional LUU 18 is connected to the Converter 1 signals from the operator 2, the second input control signal from the adder 19 is connected through the memory block 20 with a control signal output 7 PPM, which is associated with the first input control signal of the multiplexor unit 21 additional LUU 18. The output information signal of the adder 19 is connected to a second input of the information signal of the multiplexor unit 21, the output of which is connected to the first input of the information signal 7 PPM. The control signal output of adder 19 additional LUU 18 is connected with the Executive unit 22 changes the modes of operation of the second control object 17. Analog sensors 14 and discrete sensors 15 for generating signals of a critical state are connected respectively with the second and third inputs 7 PPM, and discrete sensors 16 for generating signals of the current state and discrete sensors 15 for generating signals of a critical state is connected to the input information signal adder 19 additional LUU 18.

For option perform system diagnostics and control more than two objects control vehicle 24 analog and discrete 25, 26 sensors installed on the third object of management 27 (Fig. 1) for generating signals respectively critical and current state. In this case, the control system is equipped with additional LUU 28. The first input control signal of the adder 29 additional LUU 28 is connected to the Converter 1 signals from the operator 2, the second input control signal of the adder 29 is connected through the memory block 30 with a control signal output 7 PPM, which is associated with the first input control signal of the multiplexor unit 31 additional LUU 28. Information output Sumin to the first input of the information signal 7 PPM. The control signal output of adder 29 additional LUU 28 connected to the actuating unit 32 changes the modes of operation of the third control object 27. Analog sensors 24 and discrete sensors 25 for generating signals of a critical state are connected respectively with the second and third inputs 7 PPM, and discrete sensors 26 for generating signals of the current state and discrete sensors 25 for generating signals of a critical state is connected to the input information signal adder 29 additional LUU 28.

Additional LUU 28 completed with additional discrete sensors 33 for generating signals of the current state of LLUU 28, the outputs of which are connected with the third input information signal multiplex unit 31 diagnostic data.

Similarly connect other analog and discrete current sensors and the critical state of the control objects of the vehicle, the number of which can be n, while for n objects management system management and diagnostics is performed with n number of LLUU.

In one embodiment of the control system and diagnostics for n objects management S="ptx2">

Under this option, perform the analog sensor 10 of the first control object 6, analog sensors 14 of the second control object 17 and analog sensors 24 of the third control object 27 is connected to the second input of the information signal 7 PPM. Discrete sensors signals critical condition 11, 15 and 25 respectively of the first 6, second 17 and third 27 control objects for generating signals of a critical state of these control objects connected with the third input of the information signal 7 PPM and in conjunction with discrete sensors 12, 16 and 26 respectively of the first 6, second 17 and third 27 control objects for generating signals of the current state of these control objects connected with the third input of the information signal of the adder 3 LLUU 4.

As control objects can be hydromechanical transmission with locking torque Converter (GMP), power plant in the form of an internal combustion engine (ice), the transmission with the transfer case, wheel motors, etc., brake control system, steering system, the system providing the climatic conditions in the cabin of the vehicle and other components and mechanisms TRANS is maternal transmission (HMP) 6 of the vehicle.

Automatic control system diagnostics and GMP 6 consists of a transducer 1 signals (Fig. 3) coming from the operator 2 to the first input control signal, LLUU with 4 outputs 34, 35, 36, 37, 38, 39, corresponding to the position signals of the shift lever in the "transfer I", "II transfer", "transfer III", "back up (C.x.)", "the torque Converter lock (GT)" and "manual" or "automatic control" GMP 6.

Analog sensors 10 6 GMP are sensors, such as oil temperature, pressure lubrication, vehicle speed, etc. connected with the second input of the information signal 7 PPM. Discrete sensors 11 a critical state GMP 6, for example sensors, showing the absence of pressure in the control system GMP 6, connected to the third input of the information signal 7 PPM. Discrete sensors 12 of the current state of the GMF 6, for example sensors 40,41,42,43 state boosters hydraulic actuating unit 5 profiles, respectively: "I transfer", "transfer II", "III transmission", "transmission IV", is connected with the input information signal, LLUU 4, the output of the information signal which is connected to the input of the information signal 7 PPM, corresponding data on the status of the outputs 45,46,47 signals, relevant data control address, diagnosis, block address and tick control, is connected with the second input control signal, LLUU 4, and its output control signal corresponding to the operation modes 6 GPM, namely: "1", "transmission II", "III transmission", "transmission IV", "torque Converter lock(GT)", "back up (C.x)", connected to the input of the control unit 5 GMP 6 to change the same operating modes.

A specific example of implementation of the management system GMP vehicle shown in Fig.4.

Converter 1 signals representing a group of switches that convert mechanical signals from operator 2, normalized electric signals corresponding to the operation modes of the GMF 6, which are received on inputs: 48 corresponding to the mode locking of the transformer (BIGT)", 49, corresponding to the mode "neutral", 50, corresponding to the "transmission 1", 51, corresponding to the mode of transmission II", 52, corresponding to the mode of transmission III, 53, corresponding to the mode reverse (C.x.)", 54, corresponding to the mode "manual" or "automatic control" port 55 LOU 4.

LLUU 4 through the port 56 and the system bus 57 danego state GMP 6, namely, the input 60 corresponds to the "transfer 1", the input 61 corresponds to the mode of transmission II", entry 62 corresponds to the mode of transmission III, entry 63 corresponds to the mode-IV transfer, entrance 64 corresponds to mode lock the torque Converter, the input 65 - corresponds to the mode of the speed limit 1", the input 66 corresponds to the mode of the speed limit II, entry 67 corresponds to the mode of the speed limit III". Inputs 58-67, as well as input 54 connected to the corresponding inputs of the block 9 data memory, in the form of case management, the state of which is changed according to the signal of "tact".

Referred to the data register control system receives information from the data bus when the enable signal 54, corresponding to the mode "automatic control", when a memory access address with a corresponding signal. At the input of the register set information according to the combined analysis of all facilities management vehicles. Block 9 data memory has the following outputs: 68 corresponding to the command "turn on the first transfer", 69 command enabling the second gear", 70 command "enable third gear", 70*team "the inclusion of the fourth transmission", 71 command "blocked the speed limitations III. These signals are sent to the adder, which may be implemented as a logic elements, including at the relay, and using the software logical device, or a microprocessor or an analog adder.

Feedback about enabling transmission through the port 75 through inputs 76, 77, 78, 79, 80, which receives signals on the pressure in the Executive unit, respectively, 1 transmission second gear, third gear, fourth gear, locking torque Converter.

Executive unit 5 6 GMP made in the form of electromagnets 81, 82, 82*, 83, 83*84 hydraulic control system incorporating modes respectively: "I transfer", "transfer II", "III transmission", "transmission IV","torque Converter lock" and "reverse", also through the port 85 is connected to LLUU 4.

The multiplexor block 86 diagnostic data made eight and is connected through the port 87 to the system bus 87* discrete data 7 PPM.

LLUU 4 their outputs 88, 89,90,91,92 and 93 made in the form of contacts, electromagnets 81, 82, 82*, 83, 83*and 84 of the hydraulic system profiles, GMP 6: "I transfer", "transfer II", "III transmission", "transmission IV", "nl the Inputs 58, 59, 60, 61, 62, 63, 64, 65, 66, 67 and 54 LLUU 4 connected to respective inputs of block 9 data memory, which has outputs 68, 69, 70, 70*, 71, 72, 73, and 74.

Summing module of generation of the control signal of the first gear is a logical element And 94, to the inverted inputs of which are connected to the inputs 77, 78, 79, 73 and 74 of LLUU 4, and the input 52 is connected to the input of logic element AND/NOT 95, with an inverted input connected to the input 54 and its output is connected to two logical elements 96, 97, with other inputs of which are connected to the inputs 68 and 50 to provide communication element OR 98. The output of logic element OR 98 is connected to the input element OR 99, the second input of which is connected to the input 93*and its output connected to the input of logic element 94, the output of which is connected to the first input of logic element 100, to the second input of which is connected to the input 49 and which provides a summation of the signals for forming the first transfer. The output of logic element 100 via the amplifier 101 is connected to the coil 102 of the relay, the contacts 88*which is connected to the electromagnet 81 inclusion through the hydraulic system mode transfer 1 GMP 6.

Summing module of formation control is which connected the inputs 76, 78, 79, 74, LLUU 4, and the input 52 is connected to the input of logic element AND/NOT 104, with an inverted input connected to the input 54 and its output is connected to two logical elements, 105, 106, other inputs of which are connected to the inputs 69 and 51 for communication element OR 107. The output of the OR element 107 is connected to the input element And 103, the output of which is connected to the first input of the logical element And 108, to the second input of which is connected to the input 49, and which provides the sum signal to form a second transmission. The output element And 108 through the amplifier 109 is connected to the coil 110 of the relay, the contacts 89*which is connected to the electromagnet 82 inclusion through the hydraulic system mode transfer II" GMP 6.

Summing module form the control signal of the third transmission GMP 6 represents a logical element And 111, to the inverted inputs of which are connected to the inputs 76, 77, 79, LLUU 4, and the input 52 is connected to the input of logic element AND/NOT 112, with an inverted input connected to the input 54 and its output is connected to two logical elements And 113, 114, with other inputs of which are connected to the inputs 70 and 52 to provide communication element OR 115. The output of the OR element 115 is connected to the input element And 111, which provides a summation of the signals for the formation of the third transmission. The output element And 116 via the amplifier 117 is connected to the coil 118 of the relay, the contacts 90*which is connected to the electromagnet 82*inclusion through the hydraulic system mode transfer "III" GMP 6.

To form the control signal of the fourth transmission GMP 6 included only in the automatic control mode of the vehicle, a summing module of generation of this signal is a logical element And 119, to the inverted inputs of which are connected to the inputs 76, 77, 78 LLUU 4, and the input 52 is connected to the input of logic element AND/NOT 120, with an inverted input connected to the input 54 and its output is connected to two logical elements And 121, 122, the other input of which is connected to the input 70*for communication element OR 123. The output of logic element OR 123 is connected to the input element And 119, the output of which is connected to the first input of the logical element And 124, to the second input of which is connected to the input 49, and which provides a summation signal to generate a switch-on signal of the fourth transmission. The output element And 124 via the amplifier 125 is connected to the coil 126 of the relay, the contacts 91*which is connected to the electromagnet 83 mode "transfer IV GMP 6 is a summation module, represents a logical element And 127 that is connected to the inputs 50, 51, 52, 68, 69, 70, 70*and 53 LLUU 4, and the output connected to the input "reset" trigger 128. The inputs 48 and 71 through logical element OR 129 is connected with the counting input of the trigger 128 whose output and input 49 is connected to the inputs of the element And 130, the output of which is connected through an amplifier 131 to the coil 132 of the relay contact 92*electromagnet 83*activate the torque Converter lock" with the help of the hydraulic system.

For the implementation of mode reverse GMP 6 summarizes the module is made in the form of a logic element And 133 to the input of which is connected to an inverse input 53, and to its inputs inputs 72, 73, 74, 77, 78 and 79 LLUU 4, and the output element And 133 connected to the input element And 134, the inlet of which is connected to the input 49 of LOU 4. The output element And 134 connected to the input "reset" trigger 135, "accounts" whose input is connected to the input 53 of LOU 4.

The trigger output is 135 via the amplifier 136 is connected with the coil 137 of the relay, the contacts 93*which is connected to the electromagnet 84 activate "reverse" GMP 6 by means of a hydraulic system.

The multiplexor block 86 according to the exemplary embodiment (Fig.4) consists of a multiplexor moduleusage state of the GMF with 6 inputs 59, 60, 48, 49, 50, 51, 52, 53, 54 LOU 4. On the second multiplexor module 139 is receiving data discrete sensors of the current state of the GMF with 6 inputs 59, 61, 76, 77, 78, 79, 80, 72, 73, 74 LOU 4. On the multiplexor module 140 receives information about the current state of the local logical unit control inputs 59 and 62, and contacts 88*, 89*, 90*, 91*, 92*and 93*. Thus the outputs of each of the multiplexor module connected with the respective input port 87 of the multiplexor block 86.

System control and diagnostics of the vehicle operates as follows.

The system according to the invention is intended for the organization of adaptive control systems in multi-level hierarchical control multifunctional complex control objects.

The system is built on the principle of subordination to higher level management on the basis of diagnostic data about the state of the control objects and all units and mechanisms of the vehicle as a whole. The direction of the control action depends on the aggregate information around the object through the reference point of the measurement of analog and discrete (threshold) state control objects Transmeta.

Analog information provides PPM 7 the necessary information to generate the control action. It determines the output control objects beyond the diagnostic parameters, the current state of the object up to his critical condition, the slew rate of the analog signals, positive or negative state of the slew rate of the analog signals, the direction of going beyond the boundaries of the range of stable operation of the system control and diagnostics.

Discrete information is a transformation of the physical state of the control objects in the threshold signals and is divided into three types:

information of the physical quantities of critical States;

information about the state of the control object;

diagnostic information electrical circuits.

This disaggregation allows to distribute the task of processing signals at three time functions and to combine conventional and analog information.

The control action is generated in two directions:

manual control by the operator's commands;

automatic control full control or corrector manual control.

Automatic is carried out successively for a certain period of time and is corrected according to the incoming parameters after the filing of the control commands. The priority control action is determined by the most significant parameter, this control serves one purpose of preserving the health of the vehicle. Important role in the formation of control plays a local logical device control, which provides:

coordination of information control signals to power signals electric actuators;

the solution of logical problems of different levels, including a microprocessor, for the organization of the manual control data of the control object;

multiplexing (encoding) to form a single data bus data discrete data.

LLUU 4 is an Autonomous and independent system of formation of external control, while they provide a connectiondisconnection of the control system of the highest level of 7 PPM for manual operation.

Organization of LLUU 4 6 GMP as an element of the discrete control.

The operator pre-selects the type of control: automatic or manual. To enable automatic control mode set the gear lever in position the status of the corresponding object control vehicle, monitored their condition before the beginning of the movement, in particular check the status of the braking system, steering position command begin motion, etc.

As an example, consider the process of selection and inclusion of the corresponding modes in the hydromechanical transmission of the vehicle in the automatic mode.

Management of GMP 6 in automatic mode is performed for a consolidated state analysis of the GMF, LLUU, ice, etc.

Signals from operator 2 by the inverter 1 are normalized into electrical signals 48, 49, 50, 51, 52, 53, 54, relevant modes GMP 6 "torque Converter lock(GT)", "neutral", "transmission I", "II transfer", "transfer III", "back up (C.x.)", "manual" or "automatic control", which fulfills the requirements of the manual control state of the control objects of the vehicle, and provide job automatic control of this object.

PPM 7 through the port 56 of the data, address and tact connected LLUU 4 GPM 6 his bus 57. Feedback about the inclusion of the transmission is effected through the contacts 76, 77, 78, 79 and 80.

The memory block 9 made in the form of the register is tupasela from input 54, when the block access memory at address LLUU. At the output of the memory unit 9 according to the combined analysis of the condition of all tyres are its outputs 68, 69, 70, 70*, 71, 72, 73 and 74, the control signals. These signals in the adder, made in the form of logical casting device, which may be made on the basis of logical elements, including at the relay, and using the software logical device, or microprocessor, in the case of solving complex problems for the integrated management of the vehicle.

In Fig. 4 shows a variant of the system, which is made on the basis of logical elements. The basic principle of operation of the control system and the diagnosis is that the coincidence of signals manual and automatic modes of control signals is confirmed, if there are no restrictions. If the signals do not match, the priority is given to manual control mode. If you set the automatic control mode, all controls 7 PPM, if there are no restrictions. In particular, these constraints can be classified as:

divergence signals for speed, coming from the outputs 72, 73, 74;

divergence signals characterizing the inclusion with the om case, the selected signal from the adder is supplied to LLUU 4 and compared to the state of operator actions 2 through the transducer 1 and the state of the control unit 5.

When the coincidence signal, the control signal from the PPM 7 through the adder 3, is fed to the amplifier corresponding mode GMP 6, further electromagnet Executive unit 5 hydraulic system activate this mode.

In the case of the transfer shift lever in any other position by means of the Converter 1 produces a signal that blocks the control signal generated through the memory block 9 data, and a signal is generated on mode 6 GMP status of the shift lever in the Converter 1. This signal through the adder 3 and the corresponding amplifier is transmitted to the solenoid of the control unit 5 of the hydraulic system including the mode specified by the operator.

If mode is "automatic control" or the shift lever transducer is not installed in the position mode of transmission III", you can enable this mode, set the shift lever.

The application of system diagnostics and control objects control vehicle allows you to expand the system's technical capabilities by providing on the basis of contraindicationsall information integrated with the offer systems (adaptive) control of a vehicle, allows to get the following benefits:

ensure thermal balance by choosing the optimal load and the organization of system of cooling energy installation;

fuel economy by choosing the optimal mode of operation:

increase the dynamic characteristics due to the rapid response to changing external factors, such as changing the profile of the road, the road structure, etc.

emergency detection and localization of faults and exclusion of the faulty unit from the management process.

determination of the residual life of the vehicle on the aggregate information failures;

the limitation of the control functions as a failure of the subsystem control.

The invention meets the criterion of industrial applicability, since it can be realized using well-known means of production and application of existing technologies.

Sources of information

1. A. S. USSR N 743671, class B 60 K 41/12 from 1977 (analog).

2. A. C. CCCP N 17367711, class B 60 K 17/10, 41/16 from 1990.

1. System control and diagnostics of the vehicle, having at least one object is atarov 2, the output of which is connected to the first input control signal of the adder 3 local logical unit 4 management, control signal output of the adder is connected with the Executive unit 5 changes the modes of operation of at least one control object 6 of the vehicle, characterized in that it is equipped with Central onboard controller 7, made in the form of programmable casting device for forming a control signal by combination of analog and discrete data, the local logic control device 4 is equipped with the multiplexor unit 8 of the diagnostic data to monitor and diagnose the operation of this control object, a first input connected to the output control signal of the Central on-Board controller 7, United through the block data memory 9, is arranged to change the state address and tact, with the second input control signal of the adder 3, the second input of the multiplexor block 8 of the diagnostic data is connected to the output information signal of the adder 3, and its output to the first input of the Central on-Board controller, the sensors of the control object is made analog 10 SIAs 11, 12 for generating signals respectively critical and current state, with analog sensors and digital sensors for generating signals of a critical state are connected respectively with the second and third inputs of the Central on-Board controller 7, and discrete sensors for generating signals of the current state and discrete sensors for generating signals of a critical state is connected to the input information signals of the adder 3 local logical device control 4.

2. The system under item 1, characterized in that it is provided with an additional discrete sensors 13 for generating signals of the current state of the local logical control device 4, the outputs of which are connected with the third input information signal multiplex unit diagnostic data.

3. The system under item 1, characterized in that it is provided with an additional 14 analog and discrete 15, 16 sensors for generating signals respectively critical and the current state of the at least one control object 17 and at least one additional local logic control device 18, the number of which is equal to the number of the th logical control unit 18 is connected to the Converter 1 signals, coming from operator 2, the second input control signal from the adder 19 is connected via a memory block with the output control signal of the Central on-Board controller 7, which is connected to the first input of the control signal of the multiplexor unit 21 for more local control device 18, the information output of the adder is connected to a second input of the information signal of the multiplexor unit 21, the output of which is connected to the first input of the information signal to the Central on-Board controller 7, the control signal output of adder 19 additional local logical control unit 18 is connected with the Executive unit 22 changes the operation modes of the control object 17, when this analog sensors 14 and discrete sensors 15 for generating signals of a critical state are connected respectively with the second and third inputs of the Central on-Board controller 7, and discrete sensors 16 for generating signals of the current state and discrete sensors 15 for generating signals of a critical state is connected to the input information signal adder 19 additional local logical control unit 18.

4. The system under item 3 is its status additional local logical unit management 18, the outputs are connected to the third input of the multiplexor unit 21 diagnostic data.

5. The system under item 1, characterized in that it is equipped with additional analog sensors 24 and discrete 25 and 26 for forming the signal current and the critical state at least one control object, with analog sensors and digital sensors for generating signals of a critical state are connected respectively with the second and third inputs of the Central on-Board controller 7, and discrete sensors for generating signals of the current state and discrete sensors for generating signals of a critical state is connected to the input information signals of the adder 3 local logical control device 4.

 

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The invention relates to mechanical engineering and is intended for use on compact tractors and other transport vehicles to drive propellers

The invention relates to a self-tuning mechanisms of transmission for self-propelled machines, drives technological machines and machines and can be used in automobile, tractor, machine tool

The invention relates to a drive device of a vehicle

FIELD: transport engineering; self-propelled wheeled vehicles.

SUBSTANCE: proposed vehicle contains frame 1 with cab 9, front and rear steerable wheels 4, 6 and middle wheels 5, engine placed behind the cab along vehicle and covered by hood 11. hydrostatic transmission contains pumping station 21 consisting of matching reduction gear driven by engine placed behind the cab, and three pumps connected by pipelines with hydraulic motors providing separate drives of wheels. Hydraulic motors are arranged along frame 1 between sidemembers on solid brackets made in form of boxes with flanges connected with wall of side member between its webs. Invention makes it possible to create ecologically clean and reliable multipurpose all-wheel-drive vehicle of high cross-country capacity with hydrostatic transmission to drive all wheels.

EFFECT: provision of convenient mounting and servicing of transmission units.

5 cl, 7 dwg

FIELD: transport engineering.

SUBSTANCE: invention relates to crawler tractors and it can be used in their full-flow hydrostatic transmissions. Said transmission contains dividing reduction unit 2, two parallel final hydrostatic drives with pumps 3, 4 and hydraulic motors 5, 6, track reduction units 17, 18 and two planetary mechanisms. Planetary mechanisms are installed between hydraulic motors 17, 18 and track reduction units 17, 18. Sun gears 9, 10 of planetary mechanisms are connected with each hydraulic motor by two similar gear trains 7, 9. Carriers 11, 12 of each planetary mechanism are connected with epicyclic wheels 14, 13 of other planetary mechanism and with track reduction units 17, 18. invention improves maneuverability of tractor, provides economic recuperation of brake power from trailing side to leading side at turning of tractor, reduced power load on engine at turning, reduced power losses in hydrostatic drives of transmission of tractor with possibility of use of hydrostatic drives of lower installed power.

EFFECT: improved service characteristics of tractor.

1 dwg

FIELD: transport engineering; automobiles with positive displacement hydraulic drive.

SUBSTANCE: proposed transmission includes constant-capacity guided-vane hydraulic pump mechanically connected with vehicle engine communicating through pressure, drain and suction hydraulic lines through hydraulic distributor enclosing pressure and drain hydraulic lines and playing the part of reversor with at least one constant-capacity reversible guide-vane hydraulic motor to transmit torque to one or two driving wheels of automobile. Spaces of suction and drain hydraulic lines communicate with space of hydraulic tank. Suction hydraulic line passes through adjustable hydraulic restrictor whose control lever is mechanically coupled with automobile accelerator pedal.

EFFECT: simplified design of transmission, reduced fuel consumption and weight of transmission and its cost, and increased efficiency of automobile.

18 cl, 5 dwg

FIELD: mechanical engineering; machine building hydraulics.

SUBSTANCE: invention can be used on vehicles and machine-and-tractor units operating under unsteady conditions of movement. Proposed device contains planetary train 1, reactive link 3 connected with drive gear of oil pump 5. Planetary train is connected through carrier shaft with gearbox 9 and is set into operation by engine 11. Two-step adjustable restrictor 12 is installed in pressure main line of pump. Safety valve 14 and control cock 15 are connected to input of adjustable restrictor, being also installed in pressure main line of pump pneumohydraulic accumulator, being end member of pressure main line, is provided with three spaces. It consists of hydraulic cylinder, free piston, piston with rod, piston position regulator, oil line and oil channel. Space between pistons is filled with oil which regulates volume.

EFFECT: reduced influence of vibrations of external traction load onto functioning of machine-and-tractor unit.

2 dwg

FIELD: transport engineering; hydrostatic transmissions.

SUBSTANCE: proposed hydrostatic transmission contains pumping unit consisting of main and makeup pumps driven by vehicle engine, hydraulic motors connected by main hydraulic lines with pumping unit and forming circulating hydraulic circuit, and electrically driven self-contained pump whose delivery space is connected with hydraulic circuit formed by main hydraulic lines. Hydrostatic transmission is furnished additionally with sealed hydraulic tank with device for charging its air space with compressed air from vehicle pneumatic system and containing shutoff cock, compressed air pressure regulator in sealed hydraulic tank with safety valve and vacuum manual control valve to discharge compressed air from sealed hydraulic tank, two-position manual control valve for alternate hydraulic coupling of suction space of self-contained electrically-driven pump with hydraulic tank and with device for charging the tank with working liquid, check valve arranged in drain hydraulic line at inlet of sealed hydraulic tank, and manually controlled shutoff valve in suction hydraulic line at outlet of sealed hydraulic tank.

EFFECT: improved reliability of hydrostatic transmission of vehicle designed for operation under various road conditions.

5 cl, 1 dwg

FIELD: mechanical engineering.

SUBSTANCE: invention can be used in different vehicles and in devices and mechanisms for clashless engagement of driven shafts. Proposed torque converter contains drive and driven units of converter. Drive unit is made in form of disks 2-5 with slots freely fitted on splined shaft 1. Movable blades are fitted in said slots. Driven unit of converter is made in form of cylindrical housing 7 with driven shaft 16 and rings 11 and 12 fitted on shaft. Disks 2-5 with blades 6 of drive unit of converter are arranged inside rings. Slots in disks 2-5 of drive unit of converter are made through being arranged tangentially. Each of rings 11, 12 in cylindrical housing 7 of converter driven unit is installed for rolling on guide 13, being connected with axle-shaft 14 flush-fitted in cradle of step bearing 15 whose body is in rigid engagement with cylindrical housing 7. With drive unit rotating, summary driven torque is formed from its hydraulic and inertia components. Formulas for calculating the torque are given in description of invention.

EFFECT: improved efficiency of hydraulic - inertia converter, its control system, gearbox of converter and method of torque conversion.

24 cl, 1 tbl, 10 dwg

FIELD: mechanical engineering; vehicle hydraulic drives.

SUBSTANCE: proposed recuperative reversible stepless hydraulic transmission of wheeled vehicle contains drive engine 5, recuperator 20 with overrunning clutch 24, controllable reversible hydraulic machine 18 with pressure and suction and control plunger 8 communicating with hydraulic control system through pipelines, follow-up hydraulic booster with variable-capacity pump 12 of reverse capacity, four non-controllable hydraulic machines 29-32. Each of said hydraulic machines has vehicle wheel, and wheels of vehicle are in contact with road pavement. Recuperator 20 is made in form of planetary reduction gear whose carrier 19 is connected with pump 12 and with hydraulic machine 18 provided with two diametric pressure and two diametric suction spaces and connected with hydraulic machines 29-32 by pipelines. Hydraulic machine 18 contains "floating" plunger 33 with two cylindrical grooves between two end face spaces and "polar" plunger by channels of which end face spaces of floating plunger 33 are communicated, overlapped or reversed with pressure and suction spaces of hydraulic machine 18. Cylindrical grooves of floating plunger 33 synchronously overlap or hydraulically communicate two pressure and two suction spaces of hydraulic machine 18. Lever 6 of polar plunger is mechanically connected with corresponding slot of plate 3 of vehicle speed and reverse control member.

EFFECT: reduced number of control members, dispensing with brake system improved cross-country capacity of vehicle, reduced fuel consumption, reduced acceleration time, increased efficiency.

5 cl, 11 dwg

FIELD: public building structures, particularly drives for showcase rotation.

SUBSTANCE: drive to rotate showcase substantially formed as superimposed disc 4 installed on pin 5 provides force transmission from drive 12 to disc 4 by means of flexible tie having tensioning means. Flexible tie is formed as closed loop of chain 10 having rigid links. The chain passes around the disc 4 along disc surface generator. Drive has sprocket 11 of driving means. The sprocket 11 is installed on shaft of hydraulic drive 12. Hydraulic drive 12 is mounted on plate 13 moving in radial direction relative disc 4 by hydraulic power cylinder 16.

EFFECT: increased safety of the drive, improved disc position adjustment, reduced size, simplified mounting and enhanced maintainability.

7 cl, 2 dwg

FIELD: transport mechanical engineering.

SUBSTANCE: device comprises electric means for measuring working volume of pumps and hydraulic motors and pickup (60) for measuring the speed of rotation of the shaft of the pump station. The electric circuits are provided with threshold control members (67) and (80) interconnected between pickup (6) and the electric means. Between threshold control members (67) and (80) and electric means for changing working volume of pumps (67) and (80) and hydraulic motors (13), (14), (17), and (18) of the drive of end wheels are variable resistors (77), (78), (86), and (87) that are controlled by pickups (89) and (89) of pressure difference in hydraulic circuits of the drive of the intermediate wheels and the drive of each pair of end wheels.

EFFECT: enhanced reliability and prolonged service life.

3 cl, 4 dwg

FIELD: mechanical engineering; production of drive units for engineering tools and motor vehicles.

SUBSTANCE: the invention is pertaining to the field of mechanical engineering and may be used in production of drive units for engineering tools and motor vehicles. The self-regulating infinitely variable speed transmission contains: an input shaft 9 and an output shaft 6, a centrifugal type nonadjustable hydraulic pump 3, a gear differential unit 2 with two output shafts 5, 6 and a nonadjustable hydraulic motor 4. The hydraulic pump 3 is connected to the gear differential unit output shaft 5. The nonadjustable hydraulic motor 4 is connected to the gear differential unit output shaft 6, which is an output shaft of the gear differential unit output shaft. Self-regulation of a torque of the output shaft is depending on a load by changing the number of revolutions per a minute of the centrifugal pump using the differential gear of the he self-regulating infinitely variable speed transmission. The technical result is an increased affordability due to reduction of a quantity of gears and lack of the throttling losses of a liquid and to the complete self-regulation.

EFFECT: the invention ensures an increased affordability due to reduction of a quantity of gears and lack of the throttling losses of a liquid and to the complete self-regulation.

1 dwg

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