Method for electrically actuated braking of a motor vehicle and electrically actuated brake system
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United States of America Patent
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-
Jun 27, 2000
Grant Date -
N/A
app pub date -
Oct 26, 1998
filing date -
Oct 24, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Electrical, continuously acting wheel brake actuators are individually controlled. The following calculation and control procedures are carried out in a control unit: the wheel slip and the wheel acceleration are calculated for each wheel; if the wheel slip or the wheel acceleration exceed a predefined first threshold value, then the respective actual value of the brake pressure is stored; the quotient of the stored actual value and a pressure value which is characteristic of the vehicle is formed for the respective wheel, and the coefficient of friction .mu. is thus estimated; and an ABS brake-pressure closed-loop control operation is carried out at the individual wheels using the value.
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