Electric power steering apparatus
US8478485B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2008 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Jun 23, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/0493
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electric power steering apparatus is configured in such a way as to include a first filtering unit that applies filtering processing to the detected steering torque signal and outputs the processed torque signal; a control unit that generates and outputs a motor drive signal, based on a steering torque signal outputted from a first filtering unit; a second filtering unit that applies filtering processing to the detected steering torque signal and outputs the processed torque signal; and an interlock unit that generates and outputs a motor drive inhibition signal, based on the steering torque signal outputted from the second filtering unit. The second filtering unit performs filtering processing in such a way as to output a steering torque signal the same as or similar to the steering torque signal that is outputted from the first filtering unit at least when a vehicle is in a predetermined driving condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.