The invention provides a rear axle steering hydraulic cylinder assembly which comprises a cylinder barrel, a piston rod, a ball pin, a hoop and an oil cylinder displacement sensor and is provided witha first connector and a second connector which are connected with a fifth connector and a sixth connector of a rear axle steering integrated valve bank through oil pipes respectively. An oil cylinderdisplacement sensor (35) is mounted in the cylinder barrel; one end of a rear axle steering hydraulic cylinder assembly (6) is connected with a vehicle body auxiliary seat through a knuckle bearing;the other end is connected with a left swing arm (70) of a rear axle steering rod system (10) through a ball head (36) so that the rear axle steering hydraulic cylinder assembly (6) is fixed; and thefirst connector (34) of an oil way on an upper portion of the rear axle steering hydraulic cylinder assembly (6) is connected with the fifth connector (8-A) of the rear axle steering integrated valvebank (8), and the second connector (33) of the oil way on the upper portion of the rear axle steering hydraulic cylinder assembly (6) is connected with the sixth connector (8-B) of the rear axle steering integrated valve bank (8). Stretching and retracting of the rear axle steering hydraulic cylinder along with target displacement can be accurately controlled, and closed-loop control of the steering hydraulic cylinder and steering wheel control is achieved.
本发明提供了一种后桥转向液压缸总成,包括缸筒、活塞杆、球头销、卡箍、油缸位移传感器,其具有第一接口、第二接口通过油管分别连接后桥转向集成阀组的第五接口、第六接口;油缸位移传感器(35)安装在缸筒内部;后桥转向液压缸总成(6)一端通过关节轴承与车体附座连接,另一端通过球头(36)与后桥转向杆系(10)的左摆臂(70)连接,从而实现后桥转向液压缸总成(6)的固定,后桥转向液压缸总成(6)上部油路第一接口(34)与后桥转向集成阀组(8)的第五接口(8‑A)连接,第二接口(33)与后桥转向集成阀组(8)的第六接口(8‑B)连接。本发明能够精确控制后桥转向液压缸随目标位移的伸缩,实现转向液压缸与方向盘操纵的闭环控制。
Rear axle steering hydraulic cylinder assembly and steering system
一种后桥转向液压缸总成以及转向系统
2020-09-04
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
Rear axle steering valve group, axle steering centering hydraulic control system and vehicle
European Patent Office | 2015
|European Patent Office | 2023
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