Steering control system for vehicle and steering control method for vehicle
US9308934B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 21, 2014 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Jan 21, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D6/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A steering control system for a vehicle includes an electric motor, a torque sensor, an angular velocity sensor, and a control unit. The electric motor applies assist force to a turning operation of a steering wheel. The torque sensor detects a torque generated in a steering system including the steering wheel and varying with the turning operation. The angular velocity sensor detects an angular velocity generated in the steering system and varying with the turning operation. The control unit computes an assist control amount for the turning operation by using the torque and the angular velocity, and, when an abnormality occurs in a torque detection operation, increases a control amount computed by using the angular velocity among control amounts that constitute the assist control amount as compared to that when torque sensor operation is normal and executes drive control over the electric motor based on the assist control amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.