Electrohydraulic parking brake control system for preventing brake engagement when vehicle is in motion
US5630489A · kind A · utility
18Cited by
9References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 29, 1995 |
| Grant date | May 20, 1997 |
| Priority date | — |
| Expiry date | Nov 29, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/22
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle has a parking brake system including spring-applied, pressure-released brakes. An electrohydraulic control system is provided for selectively energizing a solenoid-operated brake control valve so that release pressure is supplied to the brakes when the transmission control lever is not in neutral or when the vehicle tachometer is indicating a ground speed other than zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.