The invention provides a redundant steer-by-wire device for an intelligent chassis and a control method, and the device comprises a gear rack mechanism, a steering column, a first steering motor, a second steering motor, a first gear reduction mechanism, a second gear reduction mechanism, an electromagnetic clutch, a first steering tie rod, a second steering tie rod, a first steering wheel and a second steering wheel, a steering column angle and torque sensor, a first steering wheel kingpin angle sensor, a second steering wheel kingpin angle sensor, a first electric control unit and a second electric control unit; a current mature single-input-shaft gear rack steering mechanism is adopted, the two motors drive the same steering column, the structure is simple, the space is small, and the cost is low. Under the normal condition, the first electric control unit controls the first steering motor to execute the steering action, when the first electric control unit or the first steering motor breaks down, the second electric control unit and the second steering motor take over to execute the steering action, and the safety and reliability of the steer-by-wire system are improved.
本发明提供了一种智能底盘用冗余型线控转向装置及控制方法,该装置包括:齿轮齿条机构,转向柱,第一转向电机,第二转向电机,第一齿轮减速机构,第二齿轮减速机构,电磁离合器,第一转向横拉杆,第二转向横拉杆,第一转向轮,第二转向轮,转向柱角度与力矩传感器,第一转向轮主销角度传感器,第二转向轮主销角度传感器,第一电控单元,第二电控单元;采用目前成熟的单输入轴齿轮齿条转向机构,上述两个电机驱动同一转向柱,结构简单,空间小,成本低。正常情况下由第一电控单元控制第一转向电机执行转向动作,第一电控单元或第一转向电机故障时,第二电控单元与第二转向电机接管执行转向动作,提高了线控转向系统的安全性与可靠性。
Redundant steer-by-wire device for intelligent chassis and control method
一种智能底盘用冗余型线控转向装置及控制方法
2024-01-30
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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