FIELD: transport.
SUBSTANCE: invention relates to hydroelectric drive control systems, namely to dual-mode hydroelectric drive with additional modes of output link crossfeeding and damping. The hydroelectric drive comprises hydroelectric amplifier, contactless electric motor, electronic control unit, irreversible pump, hydraulic compensator with safety valve, hydraulic cylinder, active operation modes selection valve, damping throttle and bypass channel, proportional reverse valve, on/off switching valve, hydroelectric control valve. The on/off switching valve either connects left chamber of hydraulic cylinder to active operation modes selection valve and to bypass channel or connects it to damping throttle. The second on/off switching valve either connects left hydraulic cylinder chamber to active operation modes selection valve and hydraulic cylinder right chamber to bypass channel or connects this right chamber with damping throttle. The hydroelectric control valve connects end chamber of the first switching valve and of active operation modes selection valve with pressure line of centralised hydraulic system or with hydraulic compensator. The end chamber of the second switching valve is connected with hydraulic accumulator, with hydraulic compensator and with pump outlet channel.
EFFECT: higher reliability.
3 dwg
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