The invention discloses an electric power steering gear and a steering system.The electric power steering gear comprises a steering gear body, a hand feeling simulator, a connecting plate, a controller, a fixing support, a tie rod assembly and the like; the steering gear body comprises a shell, an end cover, a reverse planetary roller lead screw pair, two motors, two push rods, a bearing and the like. The hand feeling simulator converts a rotating angle and torque input by the steering wheel into electric signals, the electric signals control the two motors, the two motors drive the reverse planetary roller lead screw pair, and the reverse planetary roller lead screw pair converts rotating motion of the motors into linear motion and pushes the push rod to do linear motion so as to push the wheels to steer. The electric power steering gear has large rack thrust, meets the steering requirement of a vehicle with the front axle load larger than 1.2 tons, improves the mechanical efficiency, modality and rigidity of a steering system, improves the NVH performance of the whole vehicle, reduces the weight and is suitable for medium and large commercial vehicles.
本发明专利公开了一种电动助力转向器和转向系统,一种电动助力转向器,包括转向器本体、手感模拟器、连接板、控制器、固定支架和横拉杆组件等;转向器本体包括壳体、端盖、反向式行星滚柱丝杠副、两个电机、两个推杆、轴承等。手感模拟器将转向盘输入的转角和力矩转换成电信号,电信号控制两个电机,两个电机驱动反向式行星滚柱丝杠副,反向式行星滚柱丝杠副将电机的旋转运动转为直线运动,并推动推杆做直线运动,进而推动车轮转向。该电动助力转向器大幅齿条推力,满足前轴荷大于1.2吨的车辆的转向需求,提高转向系的机械效率、模态和刚度,提高整车NVH性能,降低重量,适合于中大型商用车。
Electric power steering gear and steering system
一种电动助力转向器和转向系统
2023-09-12
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |