Fluid-pressure and analogous brake systems – Speed-controlled – Braking pressure demand or braking force desire
Patent
1994-11-08
1996-11-19
Young, Lee W.
Fluid-pressure and analogous brake systems
Speed-controlled
Braking pressure demand or braking force desire
303167, B60T 858
Patent
active
055755437
ABSTRACT:
In an electronically controlled braking system which incorporates anti-lock brake control and includes a plurality of brake pressure control valves having associated local electronic control units which communicate with a master electronic control unit, part of the anti-lock brake control logic for a wheel is performed by the electronic control unit associated with the pressure control valve for that wheel, with the remainder of the anti-lock brake control logic for that wheel being performed by the master electronic control unit. The local valve-associated electronic control unit includes skid detection logic which causes the brake pressure at the associated wheel to be reduced in response to a wheel skid detected thereby, brake pressure at that wheel being controlled thereafter, at least for a defined period, according to demands communicated to the local control unit from the master control unit.
REFERENCES:
patent: 3975091 (1976-08-01), Kondo et al.
patent: 4787683 (1988-11-01), Singleton
patent: 4850650 (1989-07-01), Eckert et al.
patent: 5288139 (1994-02-01), Singleton et al.
Lucas Industries PLC.
Young Lee W.
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