The invention discloses a heavy circulating ball type dual-mode electric power steering system, and relates to the technical field of automobile steering. Comprising an electric control device and a steering device, and the steering device comprises a shell, an input shaft and screw assembly, a sector shaft assembly, a supporting seat assembly, a lubricating mechanism, a transmission mechanism, an inner end cover and an outer end cover; the lubricating mechanism is arranged on the gear sector shaft assembly, the transmission mechanism transmits torque of the motor to the input shaft and the screw assembly and comprises a worm gear and a worm, one end of the worm is connected with the output end of the motor, the other end of the worm is meshed with the worm gear, and the electric control device comprises a rotating speed sensor, a tilt angle sensor, a rotating angle torque sensor and a controller. A rotary valve structure in a circulating ball type hydraulic power steering gear is replaced by a large-reduction-ratio mechanism, a corner torque sensor and the like, conversion from hydraulic transmission to intelligent electric transmission is achieved under the condition that extra space is not increased, the power requirement is reduced by 300%, and the maximum output torque is increased by 5%.

    本发明公开了一种重型循环球式双模电动动力转向系统,涉及汽车转向技术领域。包括电控装置和转向装置,转向装置包括壳体、输入轴与螺杆总成、齿扇轴总成、支撑座总成、润滑机构、传动机构、内端盖和外端盖;润滑机构设置于齿扇轴总成上,传动机构将电机的转矩传递至输入轴与螺杆总成,传动机构包括蜗轮和蜗杆,蜗杆一端与电机的输出端连接,另一端与蜗轮啮合,电控装置包括转速传感器、倾角传感器、转角转矩传感器和控制器。本发明采用大减速比机构与转角转矩传感器等取代了循环球式液压动力转向器中的转阀结构,在不增加额外空间的情况下,实现了液力传动向智能化电传动的转变,功率需求降低300%,输出最大转矩提升5%。


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    Title :

    Heavy circulating ball type dual-mode electric power steering system


    Additional title:

    一种重型循环球式双模电动动力转向系统


    Contributors:
    ZHANG YONG (author) / LEI QIANGSHUN (author) / LIU HAITAO (author) / WANG CHENGLING (author) / YANG XIAOPENG (author) / LI YU (author) / LIU FUQIANG (author)

    Publication date :

    2023-07-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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