Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1990-01-17
1991-12-10
Graham, Matthew C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303116R, B60T 806
Patent
active
050712012
ABSTRACT:
A brake hydraulic pressure control apparatus providing anti-lock control for preventing the locking of vehicle wheels during braking and providing traction control to prevent slipping of the vehicle wheels during starting or accelerating of the vehicle, comprises a master cylinder assembly, hydraulic passages within the master cylinder assembly, a distributor assembly removably attached to the master cylinder assembly. The distributor assembly includes a predetermined number of control channels for controlling vehicle wheels, a predetermined number of hydraulic passages, and a predetermined number of electromagnetic valves corresponding to the predetermined number of control channels. The electromagnetic valves are disposed in the hydraulic passages for performing the anti-lock and traction control on the vehicle wheels. The hydraulic passages of the master cylinder assembly are connected with the hydraulic passages of the distributor assembly when the master cylinder assembly and the distributor assembly are assembled. Furthermore, the number of the control channels change in accordance with the type of vehicle based upon performance and economic considerations.
REFERENCES:
patent: 4796958 (1989-01-01), Brown
patent: 4813448 (1989-03-01), Leiber
patent: 4867509 (1989-09-01), Maehara et al.
Akebono Brake Industry Co. Ltd.
Akebono Research and Development Centre Ltd.
Graham Matthew C.
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