METHOD FOR ESTIMATING THE PRESSURE IN A VACUUM RESERVOIR OF A BRAKE SERVO
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United States of America Patent
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Nov 19, 2015
app pub date -
Oct 21, 2013
filing date -
Nov 29, 2012
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Abstract
A method for estimating pressure in a vacuum reservoir of a vacuum brake servo of a motor vehicle, the vehicle including: a braking device operated by pressure of a brake fluid; a brake servo amplifying force of an actuating member using a vacuum supplied by a reservoir; a pressure sensor configured to measure the braking pressure of the brake fluid; the method includes: calculating the braking pressure; calculating amplitude of a reduction in braking pressure; estimating increase of the pressure in the vacuum reservoir as a function of the amplitude.
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