Brake system with automatic braking mechanism
US5584538A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1995 |
| Grant date | Dec 17, 1996 |
| Priority date | — |
| Expiry date | Dec 14, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/489
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a brake system with an automatic braking mechanism of the present invention, a master cylinder pressure developed by pedaling a brake pedal 1 is supplied to wheel cylinders through first and second brake paths 6,7, first and second center valves 26', 26 and first and second outlets 24', 24 of an automatic broke actuator 8 so that the normal brake is actuated. An electronic control unit (ECU) 40 actuates a thrust generator 38 and thus an automatic braking signal pressure is developed, whereby first and second small-diameter pistons 18', 18 and first and second large-diameter pistons 16', 16 are moved forward to close the first and second center valves 26', 26 to develop pressures which are supplied to the Wheel cylinders, with the result that the automatic brake is actuated. While the normal brake is operating, the automatic brake is actuated by that the thrust generator 38 actuates the automatic brake actuator 8, and while the automatic brake is operating, the normal broke is actuated by pedaling the brake pedal 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.