Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1992-07-15
1994-03-29
Kashnikow, Andres
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
3031171, 3031181, 3031192, 137102, 137112, B60T 840
Patent
active
052978605
ABSTRACT:
A brake control device to be used for brake control and traction control of a motor vehicle includes a shuttle valve, a modulator, a traction control valve and a throttle valve. The shuttle valve selects a higher air pressure either from a brake valve, which operates when the brake is applied, or from a traction control valve, which opens during traction control to prevent wheel slippage. The shuttle valve allows the higher of the two air pressures to enter the modulator, which converts the entering air pressure to a brake hydraulic pressure to be supplied to the wheel cylinders of the motor vehicle. The throttle valve provided between the traction control valve and the shuttle valve decreases the air pressure from the traction control valve to be transmitted to the modulator when the traction control is activated. The throttle valve and the shuttle valve cooperate to increase the number of discharge air passages so that the brake control device has a greater discharge capacity when the brakes are released.
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patent: 5112114 (1992-05-01), Cogswell,II et al.
patent: 5114216 (1992-05-01), Tsuda et al.
Akebono Brake Industry Co. Ltd.
Kashnikow Andres
Poon Peter M.
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