SU1517056A1 - Training simulator for track vehicle drivers - Google Patents

Abstract

The invention relates to technical training and provides increased reliability of the simulator. The simulator for training tracked vehicles contains a vehicle cabin layout, a film projector, an imitation device for the terrain, the electrical circuit of which includes an electric motor 8 and a control unit for them. The bridge circuit of the latter consists of photodiodes 9, resistors, differential amplifier 14, signal generator 15, comparator 16, phase splitter 17, and power amplifiers. The student, acting on the controls of the vehicle, moves the frame displaying the terrain, simulating a turn to the right or left. 3 il.

Description

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(21) 4337343 / 40-11

(22) 19-10 „87

(46) 23.10 „89о Byul. № 39 (72) В „Н„ Kozhukhovsky, S.A. Begunov, M.I. "Ksepchuk, A" G. Zavatsky, A.Ko Ablesimov, A.B. Ordynsky and AonN, Tereshchenko

(53) 629-111.014.9 (088.8)

(56) USSR Copyright Certificate No. 1164767, cl. G, 09 B 9/04, 1983.

(54) TRAINING EQUIPMENT FOR TRAINING DRIVING TRACKED MACHINES

(57) The invention relates to technical training tools and provides increased reliability of the simulator. The simulator for training tracked vehicles contains a vehicle cabin layout, a film projector, an imitation device for the terrain, the electrical circuit of which includes an electric motor 8 and a control unit for them. The bridge circuit of the latter consists of photodiodes 9, resistors, differential amplifier 14, signal generator 15, comparator 16, phase splitter 17, and power amplifiers. The student, acting on vehicle controls, moves the frame displaying the terrain, imitating turning to the right or left. 3 il.

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The invention relates to technical means of training, mainly to means of teaching driving tracked vehicles.

The purpose of the invention is reliability.

Figure 1 shows a schematic of a trainer for driving tracked vehicles; Fig. 2 is an electrical circuit for driving the frame; in fig. 3 is a timing diagram illustrating the principle of operation of the frame movement actuator.

The simulator contains a model of cabin 1 with levers and sensors 2 for monitoring the position of the vehicle, a film projector 3, a mirror 4 and a luminescent screen 5, between which frame 6 is located with the drive 7 moving it

Fig. 2 depicts an electric circuit of a drive 7 for moving frame 6, which contains an engine 8 and a control LOCK, the bridge circuit of which consists of a photodiode 9 and variable resistors 10-13, a differential amplifier 14, a linearly varying generator 15. KONmapaTOp 16 signals limiter, phase splitter 17, the first 18 and second 19 power amplifiers, the outputs connected to the power supply circuits of the engine.

Resistors 10 and 11 are designed to balance the bridge when tuning in the normalized width of the optical topogram corresponding to the straight-line movement.

Resistors 12 and 13 serve to display the effects on the left or right turn lever, respectively. Changing the position of the lever from the initial value changes proportionally and the resistance of the corresponding resistor, which, in turn, compensates for the change in resistance of the photodiode 9, proportional to the illumination, i.e. the width of the optical topogram educational film about

Differential amplifier 14 is designed to amplify the voltage of the bridge unbalance, the gain factor of which characterizes the degree of sensitivity of the reaction to the terrain

The ramp voltage generator 15 is designed to form a sawtooth voltage, the voltage level and frequency of which determine the speed at which the turning position of the levers of the turning mechanism is tested.

The signal comparator 16 — the limiter — compresses two signals: the output signal of the differential amplifier, the result of comparing to the normalized level of triggering the phase splitter

5 17, which converts the input signal into paraphase, Power amplifiers 18 and 19 are designed to amplify the width-modulated power pulses.

0 D - level sufficient to control the motor, and can be implemented according to the amplifier circuit with galvanic coupling

Simulator for training driver

5 tracked vehicles works as follows

The student being in the mockup of the simulator's cabin monitors the traffic situation on the translucent screen, and, choosing the speed of movement, (sets the speed of movement of the training film, on which the optical topogram of the area is applied, with a straight line frame 6, is in the initial state and its the movement depends on the position of the levers of the turning mechanisms, and, consequently, on the topograms of the area of the training film, Toeye

“Movement paths” Thus, the levers of the turning mechanisms together with the sensors 2 for monitoring the position of the vehicle set the initial information that the frame 7 actuator 7 processes. Consider the principle and features of the actuator 7 movement of the frame 6 frame window in the simulator,

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It is known that the resistance of a photodiode 9 included in the shoulder of the measuring bridge is a function of its illuminance, and the illuminance, in turn, is determined by the width of the optical topogram of the training film. When moving along the straight terrain, the width of the optical topogram is normalized and the output signal of the bridge is absent ,

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the bridge is balanced by resistors 10 and ii.

If a section with rotation appears, i.e. motion with a certain curvature displayed on the film of an educational film, then the width of the optical topogram changes, which causes a change in light intensity and, consequently, the resistance of photodiode 9 o. The bridge circuit is unbalanced, which causes the formation of signals (,) that are not on the inverted and the inverted inputs of the differential amplifier 14. A signal appears on the output of the differential amplifier 1A (FIG. 3c), which is supplied to the first input of a comparator 16 of the limiter signals, and to its second input d is applied voltage (Figure "3d) from the generator 15 is linearly varying voltage. When the signals are equal in amplitude (fig. 3d and fig.), The output of the comparator 16 of the limiter signals (fig. Ze) is a signal whose duration is determined by the time t; , defined as the duration of time from the moment of equality of two values of the compared voltages (rehocion front of the output signal of the comparator 16) until the formation of the falling edge of the sawtooth voltage of the generator 15 (the rising edge of the output signal of the comparator 16). The output signal of the comparator 16 of the limiter signal generated in this way is fed to the input of the phase splitter 17, the output of which is a vapor phase signal (Fig. 31 and FIG. 3). These signals then go to the first 18 and second 1 9 power amplifiers that control the operation of the engine 8. The engine starts to work — the direction and speed of rotation of the shaft and the shaft are determined by the ratio between the duration of the unit state and the follow-up period of the output signal of the comparator 16 The frame associated with the motor shaft 8 is displaced in the direction opposite to the rotation of the motion picture movie.

17056.

the exit from the highway is simulated, as in the prototype,

5 If the learner acts on the first or left lever of the turning mechanism, then the resistance of one of the resistors 12 or 13 changes accordingly, and this is achieved

10 imitations turning left or right. This is accomplished by compensating the increment of the resistance of the photodiode 9, caused by the change in illumination, and with accurate compensation

 5 remains balanced, which does not cause a change in the position of frame 6,. An imitation of the rotation is performed in accordance with the relief conditions of the training film,

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Claims (1)

Invention Formula A simulator for teaching tracked vehicles, containing a cockpit layout with levers of turning mechanisms and vehicle position control sensors, a film projector, a mirror, a luminaire screen, a control unit with a bridge comparison circuit, the shoulders of which are included the photodiode and variable resistors associated with the vehicle’s position control sensors are, in fact, that 35 to improve reliability, it is equipped with a differential amplifier, a signal comparator, a linearly varying voltage generator, a phase splitter, and two amplifiers. 40, the inputs of the differential amplifier are connected to the outputs of the bridge comparison circuit, and the output is connected to the first input of the signal comparator, the second input of which 45 is connected to the generator output of a linearly varying voltage, and the output is connected to the phase accelerator input, the first output of which is connected to the input of the first power amplifier, and the second output to the input of the second power amplifier, the outputs of the first and second power amplifiers are connected to m power supply of motor windings 55 ramo 1517056