Hydraulic brake system and method for controlling same
US7201455B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2004 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Sep 1, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/442
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A road vehicle hydraulic brake system, having a master brake cylinder for generating a master cylinder pressure based on the braking intent of a driver of the vehicle, having a hydraulic unit connected between the master brake cylinder and at least one wheel brake cylinder of at least one wheel, and a method of control thereof are described. The hydraulic unit, with which a brake pressure boost is achievable by generating in the at least one wheel brake cylinder a wheel cylinder pressure greater than the master cylinder pressure, has a system of actuatable valves and at least one hydraulic pump. A differential pressure valve between the master brake cylinder and the hydraulic unit opens or closes the hydraulic connection between the master brake cylinder and the hydraulic unit at a predetermined pressure difference between the master cylinder pressure and the wheel cylinder pressure, to increase the wheel cylinder pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.