Brake device for vehicle
US9358964B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2012 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Jun 18, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2270/406
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A brake device for a vehicle is provided in which when a slave cylinder generates a brake fluid pressure that is commensurate with the actual amount of operation of a brake pedal by a driver in a state in which a master cut valve is closed and a fluid path connecting a master cylinder to the slave cylinder is cut off, a wheel cylinder is actuated by the brake fluid pressure. Since deterioration determination means determines a leak in the downstream of the slave cylinder based on the actual amount of actuation of the slave cylinder detected by a slave cylinder stroke sensor and the actual brake fluid pressure generated by the slave cylinder and detected by a fluid pressure sensor, it is possible to rapidly determine a leak in the downstream of the slave cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.