A screw drive steering wheel and control method
By introducing a mechanical limit structure consisting of three ball screws and microswitches into the steer-by-wire system, the problem of loss of control during electrical faults in the steer-by-wire system is solved, achieving dual safety protection and reliable steering control.
CN122186254APending Publication Date: 2026-06-12杨俊洪
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 杨俊洪
- Filing Date
- 2026-05-08
- Publication Date
- 2026-06-12
AI Technical Summary
Technical Problem
Existing drive-by-wire steering wheels rely on electronic algorithms to limit the steering angle, lacking a physical limiting structure. This makes the steering wheel prone to uncontrolled rotation in the event of electrical faults or sensor failures, endangering the safety of drivers and passengers.
Method used
The transmission mechanism uses three ball screws working in tandem, combined with microswitches to achieve hard limit, and is integrated with electronic detection to form a dual safety guarantee.
Benefits of technology
It achieves precise steering control under normal conditions and reliably limits the steering wheel rotation angle through mechanical structure under fault conditions, significantly improving system reliability and safety.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122186254A_ABST
Abstract
The application discloses a screw transmission type steering wheel and a control method, and relates to the technical fields of automobile steering systems and simulation racing steering wheels. The transmission type steering wheel comprises a steering wheel and a transmission mechanism, the transmission mechanism comprises a seat body, a first fixed plate, a second fixed plate, a steering ball screw, a first driving ball screw, a second driving ball screw and a driving assembly; three screws are arranged in parallel and rotatably between the two fixed plates, the steering ball screw is arranged in the middle and is fixedly connected with the steering wheel at one end; and the driving assembly is used for driving the two driving screws to rotate. The application converts the torque and the thrust stroke into each other by using the ball screw, finally achieves the purpose of torque transmission, and hard-limits the maximum angle of the steering wheel, so that the steering wheel can be reliably prevented from out-of-control rotation in the case of electrical failure; and the double steering limiting safety guarantee is realized by combining with micro switches, the structure is simple, the transmission is stable, and the reliability is high.
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