Brake control apparatus for a vehicle
US6007163A · kind A · utility
14Cited by
13References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 10, 1997 |
| Grant date | Dec 28, 1999 |
| Priority date | — |
| Expiry date | Nov 10, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/88
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pressure difference is formed between a master cylinder pressure and a wheel cylinder pressure when a master cut-off valve closes a hydraulic path connecting a master cylinder and a wheel cylinder and a hydraulic pump supplies pressurized brake fluid to the wheel cylinder. After the pressure difference has been formed, the master cut-off valve opens the hydraulic path so that the pressure difference is cancelled. As a result, pulsations in brake fluid pressure occurs in the hydraulic path. A failure of the master cut-off valve or the hydraulic pump is detected based on the pulsations in brake fluid pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.