Electric power steering apparatus
US9815491B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 2015 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Mar 21, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D6/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electric power steering apparatus is provided which can suppress the difference in steering feel between before and after it is allowed to compute an absolute steering angle and which can improve the steering feel. A basic assist control unit sets a basic assist current value. An assist gain setting unit sets assist gain. The assist gain is fixed to a lower limit value less than one before it is allowed to compute the absolute steering angle, and is gradually increased from the lower limit value to one and is then fixed to one after it is allowed to compute the absolute steering angle. An assist gain multiplication unit corrects the basic assist current value by multiplying the basic assist current value by the assist gain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.