Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1990-09-06
1992-01-14
Graham, Matthew C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303109, 303DIG4, B60T 858
Patent
active
050804472
ABSTRACT:
A schedule of brake pressure ramp rates is provided in a vehicle antilock brake controller as a function of predetermined wheel parameters. The ramp rates associated with the specific values of the wheel parameters are filtered by limiting the changes in ramp rate to a next higher ramp rate from the schedule of rates when the ramp rate called for by the wheel parameters is greater than the present ramp rate and to a next lower ramp rate from the schedule of rates when the ramp rate called for by the wheel parameters is less than the present ramp rate.
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Hogan Martin A.
Lee Alan J.
Leppek Kevin G.
Spadafora Peter J.
Conkey Howard N.
Delco Electronics Corporation
General Motors Corporation
Graham Matthew C.
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