Control device and control method for steer by wire
US12403952B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2022 |
| Grant date | Sep 2, 2025 |
| Priority date | — |
| Expiry date | Jul 26, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D6/008
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A control device method for steer by wire, the control device including a first motor controlling steering via an FBA and a second motor controlling a steering angle of a wheel via an RWA and being capable of bidirectionally controlling the first motor and the second motor includes a base SAT that obtains a reference torque based on an angle of the first motor and a vehicle speed, and a rack force estimation portion that estimates rack force as a reaction force based on a steering angle of a wheel and an RWA. A first control mode controls a reference torque of the first motor and a second control mode controls the first motor based on a reaction force estimation by the rack force estimation portion, the first and second control modes are switched based on output of the base SAT and output of the rack force estimation portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.