Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1987-12-30
1988-10-18
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
60581, 60582, 188345, 188359, 303 52, 303 92, 303119, 303100, 91391R, 180197, B60K 2816, B60T 832, B60T 1312, B60T 1502
Patent
active
047782242
ABSTRACT:
A brake unit for a road vehicle with a hydraulic dual-circuit brake system having two master cylinders, the brake booster and elements for antilock and/or propulsion or slip control in a common housing. A brake booster drive cylinder which can be subjected to the outlet pressure, proportional to the pedal travel, of a brake valve, is arranged between static master cylinders. Coupled to the piston of the drive cylinder is a pivotable rocker, the arms of which are each supported on one of the master cylinder pistons via tappet. Assigned to at least one of the master cylinders is a regulating cylinder having an opposed piston which can be supported on the piston of the master cylinder and which, when subjected on one side to the outlet pressure of the auxiliary pressure source of the brake booster, causes the piston of the master cylinder to be returnable towards its basic position counter to the actuating force exerted on it. Instead of a single acting counter cylinder, there can also be provided a double acting cylinder as regulating cylinder which can be used both for antilock control and for propulsion or slip control.
REFERENCES:
patent: 3466099 (1969-09-01), Schultz
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patent: 3586388 (1971-06-01), Stelzer
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patent: 3927915 (1975-12-01), Adachi
patent: 4015881 (1977-04-01), Adachi
patent: 4405181 (1983-09-01), Resch et al.
patent: 4624108 (1986-11-01), Leiber
patent: 4715661 (1987-12-01), Leiber
patent: 4728155 (1988-03-01), Resch
Butler Douglas C.
Daimler-Benz Aktiengesellschaft
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