Motor driven power steering tunable by user
US9381938B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2012 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | May 25, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/221
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The motor-driven power steering may include a user selection unit, a driving motor unit, and a control unit that includes a basic current map creating driving torque according to a vehicle speed for controlling the driving motor unit by using a vehicle speed and steering torque input through CAN communication and a sub-current map obtained by reducing the basic current map at a predetermined reduction ratio, creates adjustment torque corresponding to an adjustment signal adjusted by the user selection unit by using the sub-current map, and includes a sub-functional logic adjusting driving torque created by the basic current map by the created adjustment torque, a driving torque compensation map compensating adjustment driving torque adjusted by the sub-functional logic in accordance with the traveling state of a vehicle, and a driving logic that controls the driving motor unit by using compensation driving torque compensated by the driving torque compensation map.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.