Control unit for a wheel brake of a motor vehicle
US6623087B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 2002 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Jul 1, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S303/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An actuating unit (1) for a wheel brake (2) of a motor vehicle has a hydraulic pump (12), which can be driven at variable speeds by an electric motor (11) and supplies pressure fluid from a storage tank (22), and has an element (24), which adjusts a return flow of pressure fluid to the pump (12) and is disposed between the pressure side (13) and the suction side (16) of the pump (12). In addition, a cylinder-piston unit (3) is provided, which is for pressing a brake lining (7) against a friction element (8) connected to a vehicle wheel. For purposes of controlling the brake pressure as a function of wheel slip, a pressure increase valve (18) and a pressure decrease valve (21) are disposed between the pump (12) and the cylinder-piston unit (3). In addition, a control unit (29) is provided, which can process electrical brake request signals and slip signals and can control the electric motor (11), the element (24), and the valves (18, 21).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.