Steering column telescoping shaft assembly
By designing a hollow shaft and axial groove structure and a gap compensation component in the steering column telescopic shaft assembly, the gap problem caused by wear in steer-by-wire is solved, achieving a gapless torsional connection and improving the vehicle's NVH performance and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SCHAEFFLER TECHNOLOGIES AG & CO KG
- Filing Date
- 2025-01-16
- Publication Date
- 2026-07-17
AI Technical Summary
In online steering technology, the internal and external splines of the steering column telescopic shaft assembly wear due to long-term torque rotation and telescopic friction, resulting in radial or width clearances, which affect the vehicle's NVH performance and pose safety hazards.
A steering column telescopic shaft assembly is designed, which adopts an axially extending groove structure between a hollow shaft and a shaft core. Combined with a clearance compensation component and an actuator, it realizes circumferential anti-torsional connection and axial relative expansion and contraction between the shaft core and the hollow shaft. The radial clearance is eliminated by the movement of the moving body in the groove, ensuring a clearance-free anti-torsional connection.
It eliminates the clearance in the steering column telescopic shaft assembly, improves torque transmission efficiency, reduces noise and vibration, enhances vehicle NVH performance and driving stability, and extends the service life of the components.
Smart Images
Figure CN122402631A_ABST