VEHICLE END TURNING ANGLE HYDRAULIC DEVICE AND CONTROL METHOD THEREFOR

WIPO Patent Application WO/2023/279633

A1

A vehicle end turning angle hydraulic device and a control method therefor. The device comprises a hydraulic pump device (10) and a plurality of servo hydraulic cylinder devices (20); the hydraulic pump device (10) is used for supplying oil to each servo hydraulic cylinder device (20); each servo hydraulic cylinder device (20) comprises a hydraulic cylinder (201), a servo electromagnetic valve (202), and a displacement sensor (210); the servo electromagnetic valve (202) comprises a port P, a port T, a port A, and a port B; the port A is connected to an upper port of the hydraulic cylinder (201); the port B is connected to a lower port of the hydraulic cylinder (201); the port P is connected to an oil supply port of the hydraulic pump device (10); and the port T is connected to an oil return port of the hydraulic pump device (10). The device is mounted between two adjacent carriages of a vehicle, and when the vehicle makes a turn, an electromagnetic coil of each servo electromagnetic valve (202) is controlled to be electrified according to requirements, such that active auxiliary steering of the vehicle can be achieved.

LI HUAMING (CN)
JI ZHENSHAN (CN)
ZHANG BIN (CN)
XIE CHUNJIE (CN)
NAN HAIFENG (CN)
GE XIAOMING (CN)
ZHANG YANXIN (CN)
FENG XIAOBIN (CN)
YE SICONG (CN)

PCT/CN2021/133404

January 12, 2023

November 26, 2021

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CRRC TANGSHAN CO LTD (CN)

F15B19/00; F15B11/16; F15B21/02; F15B21/08

CN113638923A	2021-11-12
CN112208630A	2021-01-12
CN110836205A	2020-02-25
CN107816505A	2018-03-20
CN104295558A	2015-01-21
KR20100076649A	2010-07-06

IPFUTURE INTELLECTUAL PROPERTY LAW OFFICE (CN)

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