Vehicle units dynamic state control method

FIELD: transport.

SUBSTANCE: a priori, the minimum tolerable time t min.tol. for the i-th unit Pi parameter is determined for the said parameter to reach its threshold value Pi(thr) sufficient for adequate reaction and response of driver to prevent reaching the aforesaid threshold value and/or the unit failure. The parameter Pi is checked up periodically, in time intervals Dt, the Pi variation direction is determined and, given its approaching the threshold value Pi(thr) at every k-th time moment, the estimated time ti(k)p of reaching Pi(thr) is calculated. In the case of linear variation of the fi(t) function, the current value of Pi(k) is compared with the previous value Pi(k-1) to determine ti(k)p, while ti(k)p is determined from the differences Pi(thr)-Pi(k), Pi(k)-Pi(k-l) and time interval Dt. In the case of the known nonlinear law of the fi(t) function variation, its first and second derivatives are determined. With the positive first derivative, the fi(t)-Pi(thr)=0 equation roots are calculated. Given the root real values, their least positive value in the interval from k-th time interval to the time of reaching Pi(thr) is taken to be fi(k)p. Finally, ti(k)p is compared to ti min.tol. and, if ti(k)p decreases to ti min.tol. the actuators are triggered off to switch the vehicle unit over to the rated conditions.

EFFECT: higher control accuracy and efficiency.

5 cl, 2 dwg

 

The present invention relates to the field of automotive engineering and is intended for use when optimizing the management of automobile, tractor and other vehicles (TC).

There is a method of driving vehicle, providing a measurement of the speed of rotation of the crankshaft and the output shaft of the gearbox (transmission), comparing them with predetermined optimal values and, if they reject the inclusion of actuators TC - brake or clutch (SU 1614962, UK 41/24, 23.12.1990).

However, the known method does not output driver current information about the operating parameters of the vehicle, does not issue commands to maintain optimal modes, does not determine the occurrence of an emergency situation, recommend the driver commands on accident prevention and does not detect the malfunction of the aggregates and their causes.

Known way to control the dynamics of TC units, for example the rear wheels based formation control for the deviation of the current value of the working parameter, for example the angle of rotation of the steering wheel from the reference value taking into account both the deviation and its derivative (DE 4242218, 60R 16/02, 16.06.1994).

The disadvantage of this method lies in the limited capacity of the driving vehicle and the absence of continuous monitoring mode of operation and technology in the economic condition of the units.

The closest to the invention is a method of control units of the vehicle in dynamic mode, according to which a priori for each of the i-th working parameter Pi unit on the basis of statistical data for full-scale tests and/or by modeling critical situations determine the minimum allowable time ti mintop the parameter reaches the threshold value of Pi(p), sufficient for an adequate response and impacts of the driver to prevent the specified achievements and/or implementation of the corresponding automatic enforcement procedures of the unit, periodically at time intervals Dt measured performance parameter Pi unit, compare the current value of Pi(k) in the k-th moment the previous value of Pi(k-1), identify the direction of change of the parameter Pi, when approaching it to Pi(p) determine the estimated time ti(k)p achievements Pi(p) in the expression

compare ti(k)p with ti mintop and in the case of the reduction of ti(k)p to ti mintop affect the respective actuators for translating unit in nominal mode (EN 2063887, UK 41/28, 20.07.1996 or EN 2102258 C1, VC 41/28, 20.01.1998).

The disadvantage of this method is also associated with a limited scope of its practical use, covering control and influence on the operating parameters of the TC units only with the linear law is changing their functions in time.

The objective of the invention is the provision of control units CU, functions of operating parameters which may change not only linear but also nonlinear, both known and unknown laws. The technical result of the invention is expressed in increasing the accuracy and efficiency of management.

The problem is solved in that in the method of control units of the vehicle in dynamic mode

a priori for each of the i-th working parameter Pi unit on the basis of statistical data for full-scale tests and/or by modeling critical situations determine the minimum allowable time ti mintop achieve a work setting Pi threshold Pi(p), sufficient for an adequate response and impacts of the driver to prevent the specified achievements and/or implementation of procedures for the protection of the unit,

periodically at specified intervals Dt measured performance parameter Pi, identify the direction of change of Pi and when reaching the threshold value of Pi(p) in each k-th time determine estimated time ti(k)p threshold Pi(p), with

in the case of a linear law of change of the function fi(t) of the working parameter Pi

to determine the estimated time ti(k)p compare the current value of Pi(K) from the preceding value of the Pi(K-1), and estimated time ti(k)p threshold Pi(p) is determined by the expression

in the case of a known non-linear law of variation of the function fi(t) of the working parameter Pi

in the process of identifying the direction of change of the function fi(t) of the working parameter Pi at time intervals Dt find first and second derivatives of the function fi(t)

when the positive sign of the first derivative using the law of change of the function fi(t) compute the roots of the equation

fi(t)-Pi(p)=0,

if there are valid values of the roots

as the estimated time ti(k)p take the minimum positive value among the calculated real roots in the interval from the k-th moment of time to reach the threshold value of Pi(p),

in the absence of positive real and the presence of the imaginary values of the roots, which can occur when the negative sign of the second derivative,

identify points of extremum of the function fi(t)corresponding to the roots of the first derivative, and the estimated time ti(k)p reach extreme values of the function fi(t)

under the condition of approximation of functions fi(t), is built on the extreme points, the threshold value of Pi(p) determine the estimated time ti(k)p approximation of the value function fi(t) to the threshold value of Pi(p) by calculating the actual to the equation

fi(t)-Pi(p)=0,

determine the full estimated time ti(k)p threshold Pi(p) as the sum of the estimated time ti(k)p reach extreme values of the function fi(t) and the estimated time ti(k)p approximation of the value function fi(t) to the threshold value of Pi(p),

in the case of the unknown nonlinear law of change of the function fi(t) of the working parameter Pi

perform the approximation of the law of change of the function fi(t) of the working parameter Pi nonlinear function hi(t) in advance of the specified type and with regard to the functions hi(t), and equation

hi(t)-Pi(p)=0

to determine the estimated time ti(k)p threshold Pi(p) is carried out in the interval from the k-th moment of time to reach the threshold value of Pi(p) the same operations as in the case of a known non-linear law of variation of the function fi(t) of the working parameter Pi,

compare ti(k)p with ti mintop and in the case of the reduction of ti(k)p to ti mintop affect actuators for translating unit in nominal mode.

The task is also promoted by the private significant features of the invention.

The minimum allowable time ti mintop achieve a work threshold parameter Pi(p) is the total reaction time for the driver to get recommendations on the impact to the actuators, the total time the wasp is estline driver recommended exposure the reaction time of the driver by a warning about enabling automatic protection unit, the response time of the protective mechanism for the on command and the time the procedure of automatic protection.

As the operating parameters measured at the same time the rotational speed of a crankshaft of the engine and the output shaft of the transmission, coolant temperature (coolant, engine oil and transmission, environment, exhaust gases and coolant at the output of the pre-heater of the engine, the pressure of the lubricant at the inlet and outlet of the engine, the lubrication of the transmission, the air in the pneumatic system and air cleaning systems at the entrance to the engine, fuel, coolant and lubrication of the engine and transmission, electrical voltage limit switches provisions brakes, blinds above the radiators, cooling systems, transmission of the transmission and control points of the circuits of the vehicle.

When slowly changing operating parameters of the measured current values and the calculated values of the estimated time recorded in the permanent memory (ROM).

On the basis registered in the ROM data, including parameters that have a dynamic character, make a diagnosis of malfunctions of units of the vehicle and calculates the remaining time of reaching the threshold of the new values.

Figure 1 presents the structure of the device that implements the proposed method of control units of the vehicle in dynamic mode, and figure 2 for the illustration shows one possible nonlinear laws of change of the function at which there are no positive real and have imaginary values of the roots of the equation fi(t)-Pi(p)=0.

It is assumed that the device is made based on the processor module programmer, ROM and display functions of the individual building blocks. For measuring operating parameters by using the appropriate sensors.

The device includes a control device 1 (Fig 1) time intervals Dt measurements of the i-th working parameter Pi, unit 2 measurement of the current value of the working parameter Pi(k) in the k-th time unit 3 definition of the law of change of the function fi(t) of the working parameter Pi, unit 4 job mode processing functions fi(t) in accordance with the detected or not detected by law changes, block 5 setting the threshold value of Pi(p) working parameter Pi, unit 6, memorize previous values Pi(K-1), block 7 determine the estimated time ti(k)p threshold Pi(p) for the linear law of change of fi(t), block 8 determining the first derivative of the function fi(t), unit 9 determine the second derivative of the function fi(t), block 10 of the approximation of the law changed is I the function fi(t), block 11 defining the roots of the equation fi(t)-Pi(p)=0, unit 12 for determining the estimated time ti(k)p threshold Pi(p) for a known non-linear law of variation of the function fi(t) in the presence of real roots of an equation fi(t)-Pi(p)=0, block 13 determine the roots of the first derivative of the function fi(t) in the absence of positive real and the presence of the imaginary values of the roots of the equation fi(t)-Pi(p)=0, block 14 determine the points of extremum of the function fi(t), the unit 15 for determining the estimated time ti(k)p reach extreme values of the function fi(t), block 16 build fi(t) at the points of extremum of the function fi(t), the unit 17 for determining the estimated time ti(k)p approximation of the value function fi(t) to the threshold value of Pi(p), summing block 18 to determine the total estimated time ti(k)p threshold Pi(p) in the absence of positive real and the presence of the imaginary values of the roots of the equation fi(t)-Pi(p)=0, item 19, block 20 specify the minimum time ti mintop achieve a work setting Pi threshold Pi(p) and the block 21 comparison.

The control input unit 2 measurement of the current value of the working parameter Pi(k) in the k-th moment of time is connected with the output of the generator 1 time intervals Dt measurements, and the output from the ROM signal input unit 4 job mode processing functions fi(t) and the input unit 3 opredeleniyakh change the function fi(t), connected the output to the control input unit 4. The first output unit 4 job mode processing functions fi(t) is connected with the input of block 6 of remembering previous values Pi(K-1) and to the first input unit 7 for determining the estimated time ti(k)p threshold Pi(p) for the linear law of change of fi(t). The second output of the unit 4 is connected to the first input unit 11 determine roots of equations fi(t)-Pi(p)=0, with the input of block 8 of the definition of the first derivative of the function fi(t) and to the first input unit 14 to determine the points of extremum of the function fi(t), and the third output from the input unit 10 of the approximation of the law of change of the function fi(t). The second input unit 7 for determining the estimated time ti(k)p threshold Pi(p) for the linear law of change of fi(t) is connected to the output of the generator 1 time intervals Dt measurement, the third input to the output of block 6 of remembering previous values Pi(K-1), and the fourth input - output unit 5 setting the threshold value of Pi(p). The second input unit 11 determine roots of equations fi(t)-Pi(p)=0 is connected to the output of block 10 of the approximation of the law of change of the function fi(t), is connected to the second input of the block 14 to determine the points of extremum of the function fi(t), the third and fourth inputs to the outputs respectively of blocks 8 and 9, the first and second derivative of the function fi(t), connected in series, the fifth input from the output of the m block 5 setting the threshold value of Pi(p), and the first output with the input unit 12 for determining the estimated time ti(k)p threshold Pi(p) for a known non-linear law of variation of the function fi(t) in the presence of real roots of an equation fi(t)-Pi(p)=0. The input unit 13 to determine the roots of the first derivative of the function fi(t) in the absence of positive real and the presence of the imaginary values of the roots of the equation fi(t)-Pi(p)=0 is connected to the second output unit 11 to determine the roots of the equation fi(t)-Pi(p)=0 and the output unit 8 to determine the first derivative of the function fi(t)and the output to the third input of the block 14 to determine the points of extremum of the function fi(t)connected to the output unit 16 build fi(t) at the points of extremum of the function fi(t). The input unit 15 for determining the estimated time ti(k)p reach extreme values of the function fi(t) and unit 17 for determining the estimated time ti(k)p approximation of the value function fi(t) to the threshold value of Pi(p) is connected respectively to the outputs of the block 14 to determine the points of extremum of the function fi(t) and the block 16 build fi(t) at the points of extremum of the function fi(t), and outputs to the corresponding inputs of a summing block 18 to determine the total estimated time ti(k)p threshold Pi(p) in the absence of positive real and the presence of the imaginary values of the roots of the equation fi(t)-Pi(p)=0. The output unit 7 for determining the estimated time ti(kp reaching a threshold Pi(p) for the linear law of change of fi(t), unit 12 for determining the estimated time ti(k)p threshold Pi(p) for a known non-linear law of variation of the function fi(t) in the presence of real roots of an equation fi(t)-Pi(p)=0 and summing block 18 through the element 19 OR connected with the ROM and the first input unit 21 of the comparison. The second input unit 21 connected to the comparison output unit 20 specify the minimum time ti mintop achieve the i-th work threshold parameter Pi(p), a outputs to the actuators of the machine.

Proposed method of control units of the vehicle in dynamic mode is implemented as follows.

A priori for each of the i-th working parameter Pi unit on the basis of statistical data for full-scale tests and/or by modeling critical situations determine the minimum allowable time ti mintop achieve a work setting Pi threshold Pi(p), sufficient for an adequate response and impacts of the driver to prevent the specified achievements and/or implementation of procedures for the protection of the unit. Time ti mintop enter in block 20 specify the minimum time ti mintop achieve a work setting Pi threshold Pi(p).

Periodically through the specified block 1 time intervals Dt with the help of block 2 measure the current value of the working parameter Pik) in k-th moment of time, and in block 7 identify the direction of change of Pi and when reaching the threshold value of Pi(p) in each k-th time determine estimated time ti(k)p threshold Pi(p).

Unit 3 is determined by the law of change of the function fi(t) of the working parameter Pi. With the help of block 4 set the mode select circuit for processing the revealed law.

In the case of a linear, both known and unknown to the law of change of the function fi(t) of the working parameter Pi in the block 6 remember the previous value of Pi(K-1). To determine the estimated time ti(k)p in unit 7 compares the current value of Pi(K) with the previous value of Pi(K-1), and estimated time ti(k)p threshold Pi(p) is determined by the expression

In the case of a known non-linear law of variation of the function fi(t) of the i-th working parameter Pi in the process of identifying the direction of change of the function fi(t) of the working parameter Pi at time intervals Dt using blocks 8 and 9 are first and second derivatives of the function fi(t).

When the positive sign of the first derivative and the appropriate signal from the output of the unit 8 unit 11 using the law of change of the function fi(t) compute the roots of the equation

fi(t)-Pi(p)=0.

If there are valid values of the roots in block 12 as the estimated time ti(k)p take mi is kalinoe positive value among the calculated real roots in the interval from the k-th moment of time to reach the threshold value of Pi(p).

In the absence of positive real and the presence of the imaginary values of the roots (figure 2), which can occur when the negative sign of the second derivative and the corresponding output signal of block 9, block 13 determines the roots of the first derivative of the function fi(t). Next, in block 14 determines the point of extremum of the function fi(t)corresponding to the roots of the first derivative, and in block 15 - estimated time ti(k)p reach extreme values of the function fi(t).

In block 16 is constructed function fi(t) at the points of extremum of the function fi(t). Under the condition of approximation of functions fi(t) to the threshold value of Pi(p) in block 17 determines the estimated time ti(k)p approximation of the value function fi(t) to the threshold value of Pi(p) by computing the real roots of the equation

fi(t)-Pi(p)=0.

Next, in block 18 determines the full estimated time ti(k)p threshold Pi(p) as the sum of the estimated time ti(k)p reach extreme values of the function fi(t) and the estimated time ti(k)p approximation of the value function fi(t) to the threshold value of Pi(p).

In the case of the unknown nonlinear law of change of the function fi(t) of the working parameter Pi in the block 10 performs the approximation of the law of change of the function fi(t) of the working parameter Pi nonlinear function hi(t) in advance of a certain type. Taking into account the functions hi(t), and equation

hi(t)-Pi(p)=0

to estimate what about the time ti(k)p threshold Pi(p) is carried out in the interval from the k-th moment of time to reach the threshold value of Pi(p) the same operations with the same blocks, as in the case of known nonlinear law of change of the function fi(t) of the working parameter Pi.

Signals corresponding ti(k)p threshold Pi(p), with the output unit 7 for determining the estimated time ti(k)p threshold Pi(p) for the linear law of change of fi(t), unit 12 for determining the estimated time ti(k)p threshold Pi(p) for known and unknown nonlinear laws of change of the function fi(t) in the presence of real roots of an equation fi(t)-Pi(p)=0 and the block 18 to determine the total estimated time ti(k)p threshold Pi(p) for known and unknown nonlinear laws of change of the function fi(t) in the absence of positive real and the presence of the imaginary values of the roots of the equation fi(t)-Pi(p)=0 through the element 19 OR received in ROM and to the first input unit 21 of the comparison. The second input is fed the predetermined signal corresponding to the minimum time ti mintop achieve a work setting Pi threshold Pi(n) from the output of block 20.

In block 21 by comparing the values ti(k)p with ti mintop and in the case of the reduction of ti(k)p to ti mintop made an impact on the actuating mechanisms for the transfer of the unit in the nominal mode.

During operation this device fundamentally can make the information, the control, the safety and diagnostic (speech pathology) function.

When the protective function of the device, which uses the proposed method is the detection of pre-emergency situation, modification and accident prevention. For example, emergency protection vehicle from overheating the engine coolant temperature Identically under the linear change of the function is as follows.

A priori determine and enter in block 20 the minimum allowable time t... achieve the coolant temperature threshold value Identity(p), is equal to, for example, 115°C. Accept, in particular, t. minutes extra = t.1 + t.2 + t.3 + t.4 + t.5 = 2 minutes At this t.1 = 1 min away for a total reaction time of the driver on the received recommendations on the impact on actuators, t.2 = 0.5 min for a total time of exercise of the driver recommended procedures impact t.3 = 0,3 rpm for the driver's reaction to a warning about enabling auto-protect Assembly, t.4 = 0,05 min for the reaction of the protective mechanism on the power command, t.5 = 0.15 for the implementation of a procedure of automatic protection.

The calculation in block 6 of the difference between the current value of the coolant temperature of the engine Identically(k) and its previous value Identity(k-1) are determined by the values of changes in the Identity of the coolant temperature of the engine. If the change in Identity has tended to increase, according to the above analytical exp is the supply for the linear law of change of a function is determined by the estimated time t(k)R achieving temperature Identically the threshold values Identically(p).

If t(k)p falls to t... = 2 min, the block 21 is supplied command to the actuators (in automatic mode) or the driver on the output TC of the pre-emergency situation.

When not closed limit switch "Shutters on the radiator of the cooling system open" signal to open the blinds or, for the driver, the command "Open shutters". When closed limit switch one of the highest gear transitions to a lower gear or the driver should command "switch On " low gear". When closed limit switch in a lower gear, it will stop the machine or to the driver is generated by the command "Stop the car". When the engine is running in idle mode, executes the engine stop or the driver is passed the command "start up the engine". Finally, at the time of an emergency stop of the engine, the driver sent the command "switch On ventorro" or the signal "Included Ventana"that is followed by the automatic supply control signal to the actuator to activate the pump.

In the last three cases are memorizing the calculated change Identically in memory unit 7 to the end of the pre-owned vehicle for subsequent consideration when diagnosing the technical condition.

If the estimated time t(k)p, decreasing, reaches to the(k)p = t.3 + t.4 + t.5 = 0.5 min and then decreases then run the above commands to the actuators or the driver are replaced by the emergency alert subsequent automatic inclusion of the relevant Executive protection mechanism, which is accompanied by the conclusion of the present value of the estimated time.

When t(k)p = t.4 + t.5 = 0,2 min, or given the signal to turn on auto-protect, if the automatic protection driver is not cancelled or in case of cancellation is memorization and registration unit 7 information about the overheating coolant, and the driver displays the message "Emergency overheating" display the current value of the Identity.

Similarly implemented emergency protection of the engine and transmission changes of the oil temperature of the engine and the transmission oil heater - on temperature of the coolant at the outlet of the reheater, turbine turbocharger engine - temperature exhaust gas in the exhaust manifold of the engine, filling system engine - change of vacuum in the system of air cleaning on the engine inlet system, pneumatic system CU - change of pressure in the pneumatic system.

In the case of slowly changing operating parameters of the measured current values and the calculated values of the estimated time recorded in the permanent memory (ROM).

p> When diagnostic (speech pathology) function device Troubleshooting reasons of their appearance and message, the driver of the methods (actions) to address them.

Each time after removing the load of the engine when the vehicle stops after the end of the run, emergency stop and so on) are determined by the temperature change engine coolant, engine oil and the transmission oil, as well as the estimated time of the descent of each temperature, for example, on 5°C.

Thus, the present invention by improving the accuracy and efficiency of the control units CU contributes to the prevention of emergency situations and the failure of the vehicle, and also provides reliable automatic control modes and technical condition of all responsible units, optimization modes, automatic detection of faults and their origins.

1. The method of control units of the vehicle in dynamic mode, according to which

a priori for each of the i-th working parameter Pi unit on the basis of statistical data for full-scale tests and/or by modeling critical situations determine the minimum allowable time ti min supplementary achieve a work setting Pi threshold Pi(p), sufficient for an adequate response and impact driver is the voiding of the specified achievements and/or implementation of procedures for the protection of the unit,

periodically at specified intervals Dt measured performance parameter Pi, identify the direction of change of Pi and when reaching the threshold value of Pi(p) in each k-th time determine estimated time ti(k)p threshold Pi(p), with

in the case of a linear law of change of the function fi(t) of the working parameter Pi

to determine the estimated time ti(k)p compare the current value of Pi(K) with the previous value of Pi(K-1), and estimated time ti(k)p threshold Pi(n) is determined by the expression

in the case of a known non-linear law of variation of the function fi(t) of the i-th working parameter Pi

in the process of identifying the direction of change of the function fi(t) of the working parameter Pi at time intervals Dt find first and second derivatives of the function fi(t)

when the positive sign of the first derivative using the law of change of the function fi (t) compute the roots of the equation

fi(t)-Pi(p)=0,

if there are valid values of the roots

as the estimated time ti(k)p take the minimum positive value among the calculated real roots in the interval from the k-th moment of time to reach the threshold value of Pi(p),

in the absence of a positive de is valid and the presence of the imaginary values of the roots, which can occur when the negative sign of the second derivative,

identify points of extremum of the function fi(t)corresponding to the roots of the first derivative, and the estimated time ti(k)p reach extreme values of the function fi(t)

under the condition of approximation of functions fi(t), is built on the extreme points, the threshold value of Pi(p) determine the estimated time tin(k)p approximation of the value function ti(t) to the threshold value of Pi(p) by computing the real roots of the equation

fi(t)-Pi(p)=0,

determine the full estimated time ti(k)p threshold Pi(p) as the sum of the estimated time ti(k)p reach extreme values of the function fi(t) and the estimated time ti(k)p approximation of the value function fi(t) to the threshold value of Pi(p),

in the case of the unknown nonlinear law of change of the function fi(t) of the working parameter Pi

perform the approximation of the law of change of the function fi(t) of the working parameter Pi nonlinear function hi(t) predefined type

and taking into account the functions hi(t), and equation

hi(t)-Pi(p)=0

to determine the estimated time ti(k)p threshold Pi(p) is carried out in the interval from the k-th moment of time to reach the threshold value of Pi(p) the same operation as in the case of known nonlinear law of change of f is NCLI fi(t) of the working parameter Pi,

compare ti(k)p with ti min supplementary and in the case of the reduction of ti(k)p to ti min supplementary act on the actuating mechanisms for the transfer of the unit in the nominal mode.

2. The method according to claim 1, characterized in that the minimum allowable time ti min additional amount from the total reaction time for the driver to get recommendations on the impact to the actuators, the total time of the implementation of the driver recommended procedures impact the reaction time of the driver by a warning about enabling automatic protection unit, the response time of the protective mechanism for the on command and the time the procedure of automatic protection.

3. The method according to claim 1, characterized in that the operating parameters measured at the same time the rotational speed of a crankshaft of the engine and the output shaft of the transmission, coolant temperature, engine oil and transmission, the environment, the exhaust gases and the coolant outlet pre-heater of the engine, the pressure of the lubricant at the inlet and outlet of the engine, the lubrication of the transmission, the air in the pneumatic system and air cleaning systems at the entrance to the engine, fuel, coolant and lubrication of the engine and the transmission, the voltage on terminal switches the position of the brakes, shutters on the radiator systems the cooling gap is to be placed, transmission transmission and control points of the circuits of the vehicle.

4. The method according to any one of claims 1 to 3, characterized in that when slowly changing operating parameters of the measured current values and the calculated values of the estimated time recorded in permanent storage device.

5. The method according to claim 4, characterized in that on the basis registered in the ROM data, including parameters that have a dynamic character, make a diagnosis of malfunctions of units of the vehicle and calculates the remaining time of reaching the threshold.



 

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2 cl

FIELD: mechanical engineering; tractors and road-building machines.

SUBSTANCE: invention relates to fixed-ratio transmissions with gearbox friction clutch control hydraulic drive. Proposed vehicle gearbox hydraulic system contains pump connected with pressure-relief valve and power cylinders of friction clutches. Gearbox hydraulic system is furnished additionally with protective regulating unit including balancing and drain channels, temperature controller with sensing and actuating elements and connected by main lines with working liquid cooling system and transmission assemblies lubrication system.

EFFECT: improved efficiency and reliability of gearbox.

1 dwg

FIELD: transport engineering.

SUBSTANCE: invention relates to safety devices installed on vehicles to prevent damage to pedestrians. Proposed method to prevent traumatism and death people under wheels of vehicles comes to the following: cylindrical member is installed in form part of vehicle horizontally over entire width at level of radiator. Said member has elastic envelope with 1.5 - 2 atm pressure inside. In process of vehicle braking by application of brakes and release of clutch, man is gripped, fixed and lifted vertically by 10- 20 cm from road bed. In additional to above stated, device contains receiver connected receiver connected with pneumatic cylinders by pneumatic lines through electromagnetic valves with springs. Rods of pneumatic cylinders are mechanically coupled with clutch and brake pedals. Rod of other pneumatic cylinder with valve is rigidly coupled with front wall of elastic cylindrical member. Pneumatic line is provided with hole connected with pneumatic valve which acts onto contacts electrically connected through current source with electromagnetic valves. Outputs of electromagnetic valves are connected by pneumatic lines with four pneumatic cylinders. Rods of two pneumatic cylinder are rigidly connected with bases of right-hand and left-hand grips, respectively. Contacts are rigidly fastened of bases of right-hand and left-hand grips. Said contacts can interact with contacts electrically connected through current source with electromagnetic valves installed on pneumatic lines for shifting rods of pneumatic valves in vertical plane relative to grips.

EFFECT: improved safety of traffic, prevention of traumatism and death of people caused by vehicles.

3 cl, 3 dwg

FIELD: transport engineering.

SUBSTANCE: invention relates to safety devices installed on vehicles to prevent damage to pedestrians. Proposed method to prevent traumatism and death people under wheels of vehicles comes to the following: cylindrical member is installed in form part of vehicle horizontally over entire width at level of radiator. Said member has elastic envelope with 1.5 - 2 atm pressure inside. In process of vehicle braking by application of brakes and release of clutch, man is gripped, fixed and lifted vertically by 10- 20 cm from road bed. In additional to above stated, device contains receiver connected receiver connected with pneumatic cylinders by pneumatic lines through electromagnetic valves with springs. Rods of pneumatic cylinders are mechanically coupled with clutch and brake pedals. Rod of other pneumatic cylinder with valve is rigidly coupled with front wall of elastic cylindrical member. Pneumatic line is provided with hole connected with pneumatic valve which acts onto contacts electrically connected through current source with electromagnetic valves. Outputs of electromagnetic valves are connected by pneumatic lines with four pneumatic cylinders. Rods of two pneumatic cylinder are rigidly connected with bases of right-hand and left-hand grips, respectively. Contacts are rigidly fastened of bases of right-hand and left-hand grips. Said contacts can interact with contacts electrically connected through current source with electromagnetic valves installed on pneumatic lines for shifting rods of pneumatic valves in vertical plane relative to grips.

EFFECT: improved safety of traffic, prevention of traumatism and death of people caused by vehicles.

3 cl, 3 dwg

FIELD: transport engineering.

SUBSTANCE: invention is designed for automated control of clutch in automobile drive line. Proposed method and device make it possible to initiate warning of driver about incorrect state of clutch at gearbox shaft speed lower than limited value at action onto accelerator pedal by pressure not equal to zero and less than limited value. Invention makes it possible to reveal critical states of vehicle stopping with partly engaged clutch on slope or long clutch slipping, to warn the driver about critical situation and to eliminate such situation.

EFFECT: improved control of clutch.

16 cl, 2 dwg

FIELD: mechanical engineering.

SUBSTANCE: invention relates to devices for automatic control of brake systems of vehicles. According to proposed method, clutch set into action from outside force operates to partially interrupt transmission of torque between drive engine and at least one wheel of vehicle. It is determined, whether speed of vehicle at operating drive engine and forward gear shifted-in is zero, or vehicle rolls backwards. If vehicle rolls backwards, transport system of vehicle is set into action from outside force without use of driver's energy to create brake force and transmission of torque between drive engine and wheel of vehicle is interrupted.

EFFECT: simplified control of vehicle, reduced fuel consumption.

11 cl, 2 dwg

Gear shifter // 2280569

FIELD: mechanical engineering; transport engineering.

SUBSTANCE: invention is designed for use in hydraulic control systems of vehicles furnished with step gearboxes with friction clutches and booster for each gear. Proposed gear shifter contains spool-type hydraulic distributors, driven electromagnets, camshaft and rockers. Hydraulic distributors are hydraulically series-connected to each other and to pressure source and independently connected with boosters and with drain line. Spools are either electromagnetically or manually controlled, each spool being constantly connected directly with corresponding electromagnet, and through rocker and camshaft, with manual control. In initial position, camshaft does not prevent shifting of spools and rockers by drive electromagnets, and in other positions of camshaft, spools are shifted by rockers.

EFFECT: simplified design, improved operating characteristics of car.

3 cl, 2 dwg

FIELD: caterpillar and wheeled vehicles furnished with automatic movement controlling and adjusting system.

SUBSTANCE: system for adjusting continuity of switching transmissions of caterpillar and wheeled vehicles equipped with automatic movement controlling system has internal combustion engine, oil tank, oil pump, electric magnets, slide valves, first friction device, transmission, second friction device, commutation unit, microprocessor control unit, and controlled throttle. Throttle is located in pressure pipeline between oil tank and friction devices and is electrically connected with output of commutation unit whose input is connected to output of microprocessor control unit. Outputs of commutation unit are connected through electric magnets to inputs of slide valves, whose outputs are connected to inputs of friction devices. Adjustment system is further equipped with vehicle movement sensor connected to wheel drive, engine crankshaft rotational speed sensor, device designed for sensing oil pressure in transmission hydraulic control system and connected to inputs of friction devices, device designed for sensing oil temperature in hydraulic system and located in pressure pipeline. Outputs of said sensors are connected to respective inputs of microprocessor control unit.

EFFECT: provision for impact-free switching of transmissions and reduced dynamic loading of transmissions during switching thereof.

3 dwg

FIELD: automotive industry.

SUBSTANCE: vehicle comprises driving engine, device for transmitting torque provided with first actuator, and gear box with driving and driven shafts and second actuator. The gear box has pinion blocks that define the transmitting members. The first and second actuators are made for permitting can be actuated automatically by means of the control device.

EFFECT: improved synchronization.

33 cl, 13 dwg

Control unit // 2295747

FIELD: control units.

SUBSTANCE: control unit belongs to devices for controlling foot pedal power drives of transportation vehicle. Control unit has power drive handle 13 equipped with aids of hydrostatic effect of first independent hydraulic circuit onto first foot pedal power drive 27, of second independent hydraulic circuit - onto second foot pedal power drive 26. Handle of power drive of control unit has aids for blocking handle in position B for acting on brake's pedal and onto pedal of accelerator when handle is disposed at C position.

EFFECT: simple at use, reduced costs.

15 cl, 8 dwg

FIELD: transport engineering.

SUBSTANCE: invention relates to safety devices installed on vehicles to prevent damage to pedestrians. Proposed method to prevent traumatism and death people under wheels of vehicles comes to the following: cylindrical member is installed in form part of vehicle horizontally over entire width at level of radiator. Said member has elastic envelope with 1.5 - 2 atm pressure inside. In process of vehicle braking by application of brakes and release of clutch, man is gripped, fixed and lifted vertically by 10- 20 cm from road bed. In additional to above stated, device contains receiver connected receiver connected with pneumatic cylinders by pneumatic lines through electromagnetic valves with springs. Rods of pneumatic cylinders are mechanically coupled with clutch and brake pedals. Rod of other pneumatic cylinder with valve is rigidly coupled with front wall of elastic cylindrical member. Pneumatic line is provided with hole connected with pneumatic valve which acts onto contacts electrically connected through current source with electromagnetic valves. Outputs of electromagnetic valves are connected by pneumatic lines with four pneumatic cylinders. Rods of two pneumatic cylinder are rigidly connected with bases of right-hand and left-hand grips, respectively. Contacts are rigidly fastened of bases of right-hand and left-hand grips. Said contacts can interact with contacts electrically connected through current source with electromagnetic valves installed on pneumatic lines for shifting rods of pneumatic valves in vertical plane relative to grips.

EFFECT: improved safety of traffic, prevention of traumatism and death of people caused by vehicles.

3 cl, 3 dwg

FIELD: transport engineering.

SUBSTANCE: invention relates to safety devices installed on vehicles to prevent damage to pedestrians. Proposed method to prevent traumatism and death people under wheels of vehicles comes to the following: cylindrical member is installed in form part of vehicle horizontally over entire width at level of radiator. Said member has elastic envelope with 1.5 - 2 atm pressure inside. In process of vehicle braking by application of brakes and release of clutch, man is gripped, fixed and lifted vertically by 10- 20 cm from road bed. In additional to above stated, device contains receiver connected receiver connected with pneumatic cylinders by pneumatic lines through electromagnetic valves with springs. Rods of pneumatic cylinders are mechanically coupled with clutch and brake pedals. Rod of other pneumatic cylinder with valve is rigidly coupled with front wall of elastic cylindrical member. Pneumatic line is provided with hole connected with pneumatic valve which acts onto contacts electrically connected through current source with electromagnetic valves. Outputs of electromagnetic valves are connected by pneumatic lines with four pneumatic cylinders. Rods of two pneumatic cylinder are rigidly connected with bases of right-hand and left-hand grips, respectively. Contacts are rigidly fastened of bases of right-hand and left-hand grips. Said contacts can interact with contacts electrically connected through current source with electromagnetic valves installed on pneumatic lines for shifting rods of pneumatic valves in vertical plane relative to grips.

EFFECT: improved safety of traffic, prevention of traumatism and death of people caused by vehicles.

3 cl, 3 dwg

FIELD: mechanical engineering; tractors and road-building machines.

SUBSTANCE: invention relates to fixed-ratio transmissions with gearbox friction clutch control hydraulic drive. Proposed vehicle gearbox hydraulic system contains pump connected with pressure-relief valve and power cylinders of friction clutches. Gearbox hydraulic system is furnished additionally with protective regulating unit including balancing and drain channels, temperature controller with sensing and actuating elements and connected by main lines with working liquid cooling system and transmission assemblies lubrication system.

EFFECT: improved efficiency and reliability of gearbox.

1 dwg

FIELD: transport engineering; checking and recording facilities.

SUBSTANCE: proposed device contains speedometer and sensor for recording oscillations of automobile body in vertical plane which are connected to computing device providing determination of values of automobile acceleration and values of oscillations of automobile body in vertical plane, being essentially party terminal equipment additionally with navigation and communication device. Party terminal storage unit contains records of ranges of tolerable values of automobile acceleration and values of oscillations of automobile body in vertical plane. Party terminal makes it possible to compare definite values of oscillations of automobile body in vertical plane with range of tolerable values, record results of comparing of automobile acceleration and oscillations of automobile body in vertical plane in storage unit and/or transmit to control station data of discrepancies of definite values of automobile acceleration and values of oscillations of automobile body in vertical plane from range of tolerable values.

EFFECT: improved quality of estimation of automobile driving, increased service life of vehicles, improved safety of traffic.

2 cl

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