Steering control device
US7526372B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2006 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Jun 28, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/0457
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A steering control device in which a steering portion including an electric steering reaction force actuator and a steered portion including an electric steered portion actuator are mechanically disconnectable and connectable via a backup connection. Steer-by-wire control disconnects the backup connection and uses control of the steered portion actuator to set a steered angle corresponding to the steering condition and using control of the steering reaction force actuator to add a steering reaction force corresponding to the steered condition. Steering assistance control connects the backup connection and adds a steering aid force using at least one of the steering reaction force actuator and the steered portion actuator. The power supply capacity of a steered vehicle is selectively estimated and if the estimated power supply capacity reaches a predetermined value or below during the steer-by-wire control, steering is switched to the steering assistance control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.