The invention discloses a steer-by-wire system, a control method, a vehicle and a storage medium. The steer-by-wire system comprises a redundant steering angle torque sensor, a redundant steering angle sensor, a road sensing motor controller, a steering execution mechanism controller, an emergency connecting device and a whole vehicle controller. Wherein the road feeling motor controller and the steering execution mechanism controller execute a road feeling simulation and steering control strategy based on a corner torque signal and a corner signal, and the whole vehicle controller outputs a vehicle speed signal. And when mutual verification of the sensor signals fails, the emergency connection device is activated to form mechanical connection, and meanwhile, the flag bit is pulled up to control strategy conversion. The control method comprises sensor signal detection, strategy execution, emergency connection starting, flag bit pull-up logic and redundancy mechanism implementation. The technical problem that the steer-by-wire system cannot work under the extreme condition that redundant signals fail in the prior art is solved.
本发明公开了一种线控转向系统、控制方法、车辆及存储介质,包括:冗余式转角扭矩传感器、冗余式转角传感器、路感电机控制器、转向执行机构控制器、应急连接装置和整车控制器。其中,路感电机控制器和转向执行机构控制器基于转角扭矩信号和转角信号执行路感模拟与转向控制策略,整车控制器输出车速信号。在传感器信号互验失败时,应急连接装置激活,形成机械连接,同时标志位拉高,控制策略转换。控制方法涵盖传感器信号检测、策略执行、应急连接启动、标志位拉高逻辑和冗余机制实施。本发明解决了相关技术中冗余信号失效的极端情况下,线控转向系统将无法工作的技术问题。
Steering-by-wire system, control method, vehicle and storage medium
线控转向系统、控制方法、车辆及存储介质
2025-01-07
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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