Antiskid apparatus for vehicles
US4636010A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Feb 5, 1986 |
| Grant date | Jan 13, 1987 |
| Priority date | — |
| Expiry date | Feb 5, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/4225
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An antiskid apparatus for an automotive vehicle having a master cylinder connected to wheel cylinders via respective brake lines, and a pressure regulating valve in a power hydraulic pressure line connecting an accumulator with a directional control valve, which is installed in a power hydraulic pressure line connecting the accumulator with a hydraulic pressure control piston. When the brake is applied, the pressure regulating valve is operable, in dependence upon master cylinder hydraulic pressure delivered by each wheel cylinder, to reduce power hydraulic pressure supplied by the accumulator to a hydraulic pressure higher, by a predetermined amount, than the master cylinder hydraulic pressure, and to deliver this reduced hydraulic pressure to each directional control valve. When the brake is not applied, the pressure regulating valve cuts off communication between the accumulator and each directional control valve and brings the hydraulic pressure in a hydraulic pressure line leading to a fluid chamber of the control piston to a value not higher than a set value through the directional control valve. Thus, the fluid chamber is supplied with hydraulic pressure reduced to a predete…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.