Hydraulic brake system
US6058705A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1997 |
| Grant date | May 9, 2000 |
| Priority date | — |
| Expiry date | Dec 10, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/409
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention relates to a hydraulic brake system having a tandem master cylinder as the brake force set-point value transducer for braking by external force, downstream of which are disconnection valves for hydraulically disconnecting the master cylinder from wheel brake cylinders for external force braking. To achieve a pedal travel when the disconnection valves are closed, the invention proposes a lengthened idle travel of the pistons of the master cylinder, for instance by increasing a valve opening stroke of central valves integrated with the pistons. A travel-dependent pedal force is realized with simulator spring elements that act upon the pistons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.