An all-wheel steering system of a three-axle automobile comprises a first axle, a second axle and a third axle. Each of the first axle, the second axle and the third axle comprises two wheels, two steering pull rods and a steering mechanism. One end of each steering pull rod is connected with the corresponding steering mechanism, and the other end is connected with one wheel. The steering mechanism of the first axle is mechanically connected with a steering wheel, the steering mechanism of the second axle and the steering mechanism of the third axle are electrically connected with an active steering controller, and the active steering controller is in communication connection with a vehicle control unit. The two wheels of at least one of the first axle, the second axle and the third axle are provided with driving mechanisms in a matched mode. The all-wheel steering control method comprises three modes. A whole vehicle translation mode is convenient for a vehicle to realize a side parking function, and is beneficial for a vehicle to park at a station. An all-wheel steering mode and a front wheel steering mode are selected based on the critical speed of high-speed driving. The wheelturning radius of the all-wheel steering mode is small, and the trafficability of low-speed driving is improved. The turning radius of the front wheel steering mode is larger, and the safety of high-speed driving is improved.
一种三轴汽车全轮转向系统,包括第一轴、第二轴及第三轴,所述第一轴、第二轴及第三轴均包括两个车轮、两转向拉杆及一转向机构,每个转向拉杆的一端连接转向机构,另一端连接一个车轮,第一轴的转向机构与方向盘机械连接,第二轴及第三轴的转向机构电气连接主动转向控制器,主动转向控制器与整车控制器通信连接,第一轴、第二轴及第三轴至少有一个轴的两个车轮配设有驱动机构。该全轮转向控制方法包括三种模式,整车平移模式方便车辆实现侧方停车功能,有利于车辆停靠站点;全轮转向模式与前轮转向模式是基于高速行车临界车速进行选择,全轮转向模式的车轮转弯半径小,提高低速行车的通过性;前轮转向模式的转弯半径更大,提高高速行车的安全性。
All-wheel steering system of three-axle automobile and control method thereof
一种三轴汽车全轮转向系统及其控制方法
22.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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