Hydraulic braking system, especially for motor vehicles
US5700067A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 9, 1996 |
| Grant date | Dec 23, 1997 |
| Priority date | — |
| Expiry date | Sep 9, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2123/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A braking system is disclosed that has a manually-actuatable master cylinder having two pressure chambers. A first pressure chamber hydraulically controls a flow control valve through which the pressure medium flows during servo-braking in order to adjust its regulating cross-section to produce a defined dynamic pressure that is applied to a first piston/cylinder arrangement, connected to the flow control valve, of a brake application element to produce a braking force. A second pressure chamber can be connected to a second piston of a brake application element so that a braking force can be applied to the brake application element if the servo-force fails. Also, instead of the second piston/cylinder arrangement, a separate separator piston/cylinder arrangement can be provided that is inserted between the second pressure chamber and the piston/cylinder arrangement. As a result, sufficient braking force is produced both in servo-force braking and if the servo-force fails. Also, an appropriate response by the braking forces to the master cylinder is effected so that there is always good actuating feedback.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.