Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1992-12-28
1994-08-30
Oberleitner, Robert J.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
3031181, 303901, B60T 1128, B60T 1326
Patent
active
053421191
ABSTRACT:
A valve, for use with a vehicular brake system including an electronic control unit, including a valve body, a pressure regulator internal to the body, a solenoid valve internal to the body and a double-check valve internal to the body. The electronic control unit (ECU) controls the traction control valve during two modes of vehicle operation. The regulator assembly is in fluid communication with the pressurized air supply and regulates the air supplied to the brake system during one mode of operation. The solenoid valve receives pressure-regulated air from the regulator assembly and is controlled by the electronic control unit during the two modes of operation. The single double-check valve receives pressure-regulated air from the solenoid valve and receives pressurized air from the supply, such that the double-check valve allows the pressure-regulated air to flow from the solenoid valve to the brake system during the one mode of operation, and allows the pressurized air to flow from the pressurized air supply to the brake system during the other mode of operation.
REFERENCES:
patent: 3768519 (1973-10-01), Morse
patent: 4230377 (1980-10-01), Goebels
patent: 4819995 (1989-04-01), Lohmann et al.
patent: 4846532 (1990-07-01), Friedow et al.
patent: 4890890 (1990-01-01), Leiber
patent: 5042883 (1991-08-01), McCann et al.
patent: 5184878 (1993-02-01), Woerner
patent: 5211449 (1993-05-01), Amtsfeld
Beverly James A.
Caron LaVerne A.
Smith G. Fred
Ballato Josie A.
Eaton Corporation
Oberleitner Robert J.
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