The invention belongs to the field of automobile chassis steering systems, and provides a dual-drive power steering system in order to solve the technical problems that when an existing electric steering system breaks down in driving power-assisted steering, a driver easily operates the steering system difficultly or even cannot operate the steering system, and steering control is lost, and the dual-drive power steering system is provided with two power-assisted driving assemblies. The two power-assisted driving assemblies can provide power independently and can also provide power at the same time, when any one power-assisted driving assembly fails, power-assisted steering or steer-by-wire can still be continuously provided, and meanwhile the structure is compact and easy to achieve. According to the specific structure, four different implementation modes are provided, namely, the annular outer teeth or racks are arranged on the lead screw, the annular outer teeth or racks are arranged on the nut, the outer teeth or racks are arranged on the support on the basis of the two modes, rotary sliding can be changed into rotary rolling, the efficiency is higher, and the service life is prolonged. And the support can be prevented from rotating, and the structure is more reliable and stable.
本发明属于汽车底盘转向系统领域,为解决现有电动化转向系统在驱动助力转向出现故障时,容易出现驾驶员操作困难甚至无法操作转向,以及会出现失去转向控制的技术问题,提供一种双驱动动力转向系统,设置有两个助力驱动组件,两个助力驱动组件既可以各自单独提供助力,也可以同时提供助力,在任一个助力驱动组件失效时,仍然能够继续提供助力转向或线控转向,同时,结构紧凑易实现。在具体结构上,本发明提供了四种不同的实现方式,包括丝杠上设置环形外齿或齿条、螺母上设置环形外齿或齿条、在前述两种方式的基础上将外齿或齿条设置在支座上,还能够将旋转滑动变为旋转滚动,使得效率更高,且可避免支座发生转动,结构更加可靠稳定。
Dual-drive power steering system
双驱动动力转向系统
2023-06-23
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
A dual drive steering mechanism used for a wire transmission steering system
European Patent Office | 2016
|