Electric power assisted steering
US11498612B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 18, 2018 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Sep 30, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D15/0215
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electric power assisted steering apparatus comprises a steering mechanism which operatively connects a steering wheel to the road wheels of a vehicle, an electric motor operatively connected to the steering mechanism, a torque signal generator adapted to produce a torque signal, a column angular position signal generator for producing a column angle signal and a signal processing unit adapted to receive the column torque signal and the column angle signal and to produce therefrom a torque demand signal representative of a torque to be applied to the steering mechanism. A torque demand signal generating circuit adapted to produce the torque demand signal is a function of both the friction compensating torque and the assistance torque signal, at least partially assists the driver in overcoming the effects of static and/or kinetic friction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.