RU1405553C - Device for simulating hydraulic-mechanical gear - Google Patents

Abstract

The invention relates to analog, computing and may find application in simulators for training vehicle drivers. The purpose of the invention is the expansion of functionality by modeling a hydrostatic rotation mechanism of a tracked vehicle. To this end, second to fourth inverters are introduced into the device. third and fourth integrators, from first to third integrosumators. The voltage difference at the output of the third and fourth integrators is proportional to the speed of rotation of the output elements of the rotation mechanism. 1 ill.

Description

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The invention relates to analog computing, may find application in simulators for training vehicle drivers, and is an improvement on the known device for autosw. No. 1333089.

The aim of the present invention is to expand the functionality by simulating a hydraulic volumetric mechanism for turning the tracked vehicle.

The drawing shows a functional diagram of the device.

The device comprises a first integrator 1, a second integrator 2, a first inverter 3, a first integrator 4, a third integrator 5, a control position sensor 6, a third inverter 7, a fourth inverter 8, a nonlinearity setting unit 9, a module allocation unit 10, a fourth integrator 11, the third integrator 12, the limiter 13, the inertial link 14, the second inverter 15, the amplifier 16 and the second integrator 17.

The device operates as follows.

Integrator 1 models the rotational masses brought to the shaft of the hydraulic transmission pump. The integrator 2 models the rotating masses reduced to the epicycles of the planetary series of the rotation mechanism. Integrators 11 and 12 model the rotating masses brought to the carriers of the left and right planetary gears, respectively. When a voltage proportional to the torque is applied to the first input of the device at the output of the integrator 1, a voltage proportional to the rotation speed of the hydrostatic pump shaft is generated. This voltage directly through the inverter 3 is fed to the output of the position sensor of the control (in this case, the control is a helm by which the driver rotates the tracked vehicle). Sensor 6 is a potentiometer, the slider of which is connected to a regulatory body. A multi-polarity voltage is applied to the inputs of the sensor 6. When the helm is set to its initial position, which corresponds to setting the potentiometer of sensor 6 to the middle position, voltage / le taken from the engine will be zero, therefore, the output voltage of all subsequent blocks will also be zero.

When a voltage proportional to the torque is applied to the second input of the device at the output of the integro-adder 2, the voltage isep proportional to the rotation speed of the planetary series cycles. This voltage is applied to the first

inputs of integrosummers 4 and 5, at the outputs of which UMI and im2 stresses are generated, which are proportional to the moment of elastic forces arising in the planetary series. Voltage Uwi and them2 respectively through

inverters 7 and 8 are fed to the inputs of integrators 11 and 12, at the output of which voltages U ow and Uo) b2 are generated, proportional to the rotation speed of the carrier. Inverters 7 and 8 are used to change

the sign of the voltages UMI and Mind, which are supplied to the inputs of the integrator 17 equal in magnitude but opposite in sign, as a result of which these voltages do not affect the integrator 17, and its output

the value continues to be zero.

In this way, the same rotation rate of the output elements of the carrier mechanism of turns is simulated, which corresponds to the linear motion of the tracked vehicle.

To make a turn, you need to turn the helm at an angle necessary for turning according to the appropriate rad / 1c. As a result, the engine potentiometer meter sensor

b is moved from the middle position, then the voltage is removed from the potentiometer engine, which (if it is higher than the dead zone of the non-zero setting unit 9) is fed to the input k1 kertz.)

link 14, the output of which is for1: A voltage is generated, the pressure drop of the oil in the hydraulic system, i.e. in a real transmission, the oil pressure is limited by:. bypass valve, in this unit

the role of the latter is played by a limiter 13, which limits the output voltage of the inertial link 14. This voltage is supplied through the amplifier 16 to the input of the integrator 17. The amplifier 16 serves to

converting a voltage proportional to the oil pressure to a voltage proportional to the moment applied to the motor shaft, since torque value proportional to pressure

hydraulic oil. The amplifier 16 is inverting and serves to match the sign voltages. As a result, at the output of the integrator 17 is formed by changing the proportional angular velocity

hydraulic motor. This voltage is supplied to the second input of the inertial link 14, as a result of which its output voltage decreases with increasing angular velocity of the hydraulic motors shaft and becomes

equal to zero at the end. The voltage from the output of the integrator 17 is supplied to the third input of the integrator 5 and through the inverter 15 to the first input of the integrator 4. The voltage polarity at the output of the integrator 17 determines the direction of rotation of the tracked vehicle. Suppose, for example, that the voltage and (Ohp is positive, and the voltage and open are negative, then the voltages and ftfen and and ftVn are added at the third and first inputs of the integrosummer A and subtracted at the first and third inputs of the integrosumrator 5, as a result of which the voltage UMI at the output of integro-adder 4 increases, and U2 at the output of integro-adder 5 decreases and polarity changes. In this case, the voltage at the output of integrator 11 also increases, and the voltage U (Ov2 at the output of integrator 12 decreases, i.e., is simulated different rotation speeds in output elements of the rotation mechanism, which leads to the rotation of the tracked vehicle.

Claims (1)

SUMMARY OF THE INVENTION A device for simulating hydromechanical automatic transmission bfe 1333089, characterized in that, in order to expand the functionality by simulating a hydraulic volumetric mechanism for turning the tracked vehicle, it further comprises second to fourth inverters, a third and the fourth integrator, from the first to the third integrator, and the output of the second inverter is connected to the first information input of the first integrator, 5 the output of which is connected to the input of the third inverter, the output of which is connected to the input of the fourth integrator, the output of which is connected to the second input of the first integrator and is the first the output of the carrier’s rotation speed, the output of the second integrator is connected to the first information input of the third integrator, the output of which is connected to the input fourth inverter output 5 of which is connected to the input of the third integrator, the output of which is connected to the second information input of the third integrator and is the second output of the carrier speed of the device; 0 the third input of the third integrator is connected to the output of the second integrator, the second information input of which is connected to the output of the fourth inverter and the first information input of the second 5 integro-adder, the second information input of which is connected to the output of the third inverter, the third information input of the second integro-adder is the second input of the device, the output 0 of the second integrator is connected to the third information input of the first integrator, the output of which is connected to the third information input of the second integrator.