Emergency brake apparatus for vehicle

Details Emergency brake apparatus for vehicle Emergency brake apparatus for vehicle

2005-02-01

2005-02-01

Graham, Matthew C. (Department: 3683)

Fluid-pressure and analogous brake systems

Multiple fluid-receiving devices

Multiple motors

C303S113500, C303S043000

Reexamination Certificate

active

06848753

ABSTRACT:
The invention provides an emergency brake apparatus for a vehicle which can brake both of front and rear tire wheels of a vehicle by using an oil pressure, at an emergency time. For this purpose, a pressure oil of a hydraulic power source is changed to a pilot oil pressure which is reduced from a high pressure to a low pressure in correspondence to an operation amount of an emergency brake valve (77) operated at the emergency time, and this pressure is output to a relay valve (3). The pressure oil of the hydraulic power source is increased in an inverse proportional manner from a low pressure to a high pressure in correspondence to the pilot oil pressure, and this pressure is output to a front tire wheel brake (64), thereby urgently braking the front tire wheel.

REFERENCES:
patent: 3917037 (1975-11-01), Prillinger
patent: 3982792 (1976-09-01), Nakajima
patent: 4697852 (1987-10-01), Scholz
patent: 4770470 (1988-09-01), Tarumizu et al.
patent: 5791750 (1998-08-01), Spiegelberg
patent: 64-67469 (1989-03-01), None

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