An integrated electric steering gear with a safety redundancy function is characterized in that a 4 + 2 torque angle sensor is fixed on an input shaft and a steering screw assembly and clamped through a middle shell, two worm wheels are pressed on the input shaft and the steering screw assembly in an interference mode through bearing inner rings respectively, the two worm wheels are in tooth-shaped meshing transmission with a worm respectively, and the worm is driven to rotate through a transmission shaft. The two worms are in matched transmission with the two electric control driving units through tooth profiles in the axial direction to form two sets of independent electric control units, the two electric control driving units are connected to the 4 + 2 torque angle sensor through the connecting wire harness, the input shaft and the lower end of the steering screw assembly are connected with the mechanical structure assembly through the ball screw, force transmitted by the input and electric control parts is input, and the mechanical structure assembly is connected with the steering screw assembly through the ball screw. And torque output is carried out through the mechanical structure assembly. The whole electric control unit and the transmission mechanism thereof are fully redundant, the transmission mechanism is higher in durability and strength, and the structural design is highly integrated.
一种具备安全冗余功能的集成式电动转向器,4+2扭矩角度传感器固定在输入轴与转向螺杆组件上,并通过中间壳体卡位,2个蜗轮分别通过轴承内圈过盈压装在输入轴与转向螺杆组件上,2个蜗轮分别与蜗杆通过齿形啮合传动,2个蜗杆分别与2个电控驱动单元通过轴向上的齿形配合传动,形成两套独立的电控单元,2个电控驱动单元通过连接线束接到4+2扭矩角度传感器上,输入轴与转向螺杆组件下端通过滚珠丝杠与机械结构总成连接,输入和电控部分传递过来的力,通过机械结构总成进行力矩输出。本发明具备整个电控单元及其传动机构全冗余,传动机构耐久和强度更高,结构设计高度集成。
Integrated electric steering gear with safety redundancy function
一种具备安全冗余功能的集成式电动转向器
2025-02-11
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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