The invention relates to a vehicle steer-by-wire system based on a planetary roller screw pair. The system comprises a first mechanical movable connecting rod and a second mechanical movable connecting rod which are movably connected with the two sides of a base respectively, a propelling mechanism respectively connected with the two movable connecting rods, a main transmission mechanism connectedwith the propelling mechanism, and a guide mechanism connected with the main transmission mechanism. The guide mechanism is connected with the base, the main transmission mechanism is connected witha driving system, the propelling mechanism comprises a transverse pull rod and a planetary ball screw pair connected with the transverse pull rod, a planetary nut of the planetary ball screw pair is connected with the main transmission mechanism, and the propelling mechanism, the first mechanical movable connecting rod, the base, the second mechanical movable connecting rod, the main transmissionmechanism and the guide mechanism form a six-rod mechanism. Compared with like systems in the prior art, the system of the invention has the following advantages: the reliability is high, and the controllability, accuracy and comfort of the vehicle steering system are improved.

    本发明涉及一种基于行星滚柱丝杠副的车辆线控转向系统,包括与基座两侧分别活动连接的第一机械活动连杆、第二机械活动连杆,与两个活动连杆分别连接的推进机构,与推进机构连接的主传动机构,以及与主传动机构连接的导向机构,导向机构与基座连接,主传动机构连接驱动系统,推进机构包括横拉杆和与其连接的行星滚珠丝杠副,行星滚珠丝杠副的行星螺母与主传动机构连接,推进机构与第一机械活动连杆、基座、第二机械活动连杆、主传动机构、导向机构构成六杆机构。与现有技术相比,本发明具有可靠性强,提高了车辆转向系统的可控性、精确性以及舒适性等优点。


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    Title :

    Vehicle steer-by-wire system based on planetary roller screw pair


    Additional title:

    一种基于行星滚柱丝杠副的车辆线控转向系统


    Contributors:
    WANG HUGEN (author) / CHENG HOUDE (author) / ZHAN XIAOMING (author)

    Publication date :

    2020-09-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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