Electric power steering system
US10737722B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 22, 2017 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | Aug 1, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D6/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electric power steering system includes a mechanical linkage, first and second wheels, an electric motor, first and second speed sensors, and an electronic control unit. The linkage includes a steering column and a rack operatively engaged to the steering column. The first and second wheels are rotationally engaged to opposite ends of the rack. The motor is operatively attached to the linkage for providing steering assistance. The first and second speed sensors are configured to detect rotation speed of the respective first and second wheels. The unit is configured to receive first and second rotational speed signals from the respective first and second speed sensors, and calculate a first rotational speed differential between the first and second wheels to facilitate an estimation of a steering column angular position for controlling the electric motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.