Braking system with power brake, braking force proportioning, anti-skid, and traction control functions
US4755008A · kind A · utility
49Cited by
8References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1986 |
| Grant date | Jul 5, 1988 |
| Priority date | — |
| Expiry date | Dec 19, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S303/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A braking system having a pressure modulator which, during normal braking operation, delivers a fluid pressure which is a predetermined multiple of a fluid pressure generated by the master cylinder to a wheel cylinder. The pressure modulator has a solenoid actuator which is energized during braking force proportioning and anti-skid operations to reduce the delivery pressure. In a preferred embodiment, the pressure modulator further includes another solenoid actuator for increasing the delivery pressure during braking force proportioning operation and for delivering fluid pressure during traction control operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.