Electric power steering device, and control method thereof
US7966114B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 14, 2007 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Apr 20, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D15/025
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A first compensation torque T1, a second compensation torque T2 and a third compensation torque T3 are added to a basic assist torque Tas. In this case, the second compensation torque T2 and the third compensation torque T3 are corrected by multiplying them by a common control gain G that is determined by the steering torque Th and the vehicle speed v. Therefore, since the two compensation control amounts are corrected through multiplication by the common control gain G, no interference occurs between the compensation controls. Besides, when the direction in which the total (T2+T3) of the pre-correction second compensation torque T2 and the pre-correction third compensation torque T3 acts is the same direction as the steering torque Th, the multiplication by the control gain G is avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.