Fluid-pressure and analogous brake systems – Multiple fluid-receiving devices – Multiple motors
Patent
1986-07-24
1988-01-19
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Multiple fluid-receiving devices
Multiple motors
188345, 303 68, 303111, 303114, 303119, 303 92, 303 84A, B60T 832, B60T 1300, B60T 1546
Patent
active
047201517
ABSTRACT:
A slip-controlled brake system for automotive vehicles comprising two static brake circuits (17, 18) into which a pressure medium is introduceable from a dynamic pressure medium circuit (21, 23) during the control operation, and one dynamic brake circuit (14). Directional control valves (7, 8, 9) are interposed in the brake circuits (14, 17, 18). The directional control valves permit a reduction of the pressure in the wheel brakes and a return flow of the pressure medium to the storage reservoir (3). In addition, two pressure-controlled three-way/two-position valves (40, 40') are interposed in the rear wheel brake circuit (14) between the rear axle regulating valves (6, 9) and the wheel cylinders of the rear wheel brakes (HL, HR). The valves are actuated by the pressure in the front wheel brake circuits (17, 18). The three-way/two-position valves (40, 40') have the effect of reducing the pressure in the diagonal rear wheel break circuit in the event of a failure of one of the front wheel brake circuits due to a defect.
REFERENCES:
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patent: 4229049 (1980-10-01), Ando
patent: 4322114 (1982-03-01), Maehara
patent: 4374421 (1983-02-01), Leiber
patent: 4421362 (1983-12-01), Shirai et al.
patent: 4440454 (1984-04-01), Belart et al.
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patent: 4523791 (1985-06-01), Belart et al.
patent: 4611858 (1986-09-01), Belart
Belart Juan
Ocvirk Norbert
Seibert Wolfram
Alfred Teves GmbH
Butler Douglas C.
Raden James B.
Seitter Robert P.
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