Steer-by-wire system and control program therefor
US7234563B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2004 |
| Grant date | Jun 26, 2007 |
| Priority date | — |
| Expiry date | Dec 27, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/0496
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Disclosed is a steer-by-wire system and a control program therefor which are capable of preventing a steering handle from being turned excessively. According to the steer-by-wire system and the control program, when drive electric current to a steering actuator is restrained to restrict the steering of steerable road wheels, the steering reaction force to the steering handle is increased thereby to make the steering handle hard or unable to turn further. Thus, the steering handle can be prevented from being turned excessively. Further, when the steering actuator is heated beyond a predetermined temperature, such is judged as the overload on the steering actuator thereby to restrain the drive electric current to the steering actuator. Therefore, it can be obviated that the steering actuator is overheated to suffer failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.