Lane departure suppression device
US10780916B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 17, 2016 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | May 29, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2540/18
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A lane departure suppression device is provided in a car equipped with a steering angle change mechanism that changes a steering angle and with a motor that operates the steering angle change mechanism, and the lane departure suppression device includes: a main control unit that outputs a main control signal after a position of the car reaches a deflection starting position at which deflection of the car is started in order to suppress departure of the car from a lane, the main control signal representing a main control amount for causing the motor to generate an assist torque that changes the steering angle; and a pre-control unit that outputs, until the main control unit outputs the main control signal, a pre-control signal while the position of the car is located closer to a center of the lane than the deflection starting position is, the pre-control signal representing a pre-control amount for causing the motor to generate an assist torque equal to or less than a friction torque of the steering angle change mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.