METHOD OF CALIBRATING A BRAKE BOOSTER

A calibration process for a pneumatic-assistance servomotor in a braking circuit of a motor vehicle. The values of the output pressure (Pmc) of a hydraulic master cylinder associated with the servomotor and of the negative pressure inside the working chamber of the servomotor are measured and record...

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Bibliographic Details
Main Authors PIEL, JEAN-MARC, QUIRANT, WERNER
Format Patent
LanguageEnglish
French
German
Published 31.08.2005
Edition7
Subjects
ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL
BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
PERFORMING OPERATIONS
PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES
TRANSPORTING
VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF
VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
VEHICLES IN GENERAL
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Summary:A calibration process for a pneumatic-assistance servomotor in a braking circuit of a motor vehicle. The values of the output pressure (Pmc) of a hydraulic master cylinder associated with the servomotor and of the negative pressure inside the working chamber of the servomotor are measured and recorded with respect to a given negative-pressure value (Pfc) inside a negative-pressure chamber of a servomotor for several operating points P 1 , P 2 , P 3 , P 4 of the servomtotor. The operating points being located on either side of a saturation point to precisely determine the coordinates of the saturation point and thereby provide an accurate control of advanced functions of the servomotor with respect to braking operation, the braking assistance and/or the monitoring of the performance or of the ageing of the servomotor.
Bibliography:Application Number: EP20020774910