本发明公开了一种智能汽车冗余线控转向装置及其控制方法,转向装置包括有转向盘、转向管柱、路感电机、电磁离合器、冗余电机、齿轮齿条转向器、助力电机和控制单元,其中转向盘装配在转向管柱的顶端,路感电机、电磁离合器、冗余电机和齿轮齿条转向器依次装配在转向管柱上,控制方法包括的步骤有:转向装置只有在检测到车辆启动时才开始工作,转向装置包括两种工作模式及对应的控制方法:第一种为驾驶辅助模式的控制方法,第二种为自动驾驶模式的控制方法,有益效果:实现了传感器、电机、控制单元和电源的冗余备份,有助于延长其寿命。当从ECU监测到主ECU故障时立即进行控制权接管,而无需其他结构且易实现控制权的无缝切换。
The invention discloses an intelligent automobile redundant steer-by-wire device and a control method thereof. The intelligent automobile redundant steer-by-wire device comprises a steering wheel, a steering column, a road sensing motor, an electromagnetic clutch, a redundant motor, a gear rack steering gear, a power-assisted motor and a control unit, and the steering wheel is assembled at the topend of the steering column; and the road sensing motor, the electromagnetic clutch, the redundant motor and the gear rack steering gear are sequentially assembled on the steering column. The controlmethod comprises the steps that the steering device starts to work only when it is detected that a vehicle is started, and the steering device comprises two working modes and corresponding control methods, namely the driving auxiliary mode control method and the the automatic driving mode control method. The intelligent automobile redundant steer-by-wire device and a control method thereof have the advantages that redundant backup of the sensor, the motor, the control unit and the power source is achieved, and the service life can be prolonged. When slave ECU monitors that master ECU fails, the control right is taken over immediately, other structures are not needed, and seamless switching of the control right is easy to realize.
一种智能汽车冗余线控转向装置及其控制方法
2022-02-08
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |