A method for supplying vacuum for a pneumatic brake booster for a motor vehicle braking system, using an electromotively-driven displacement type pump assembly. At least one pressure sensor for monitoring a pneumatic pressure is associated with the pump assembly, and electric signals of the pressure sensor are fed to an electronic unit, analyzed, and processed in order to regulate the pressure. A plausibility check of the pressure sensor signal is carried out by a pressure value amplitude being determined, by signal analysis, in the form of a difference between a maximum pressure value and a minimum pressure value within a stroke of the displacement element, and this being compared to a stored comparison value wherein if the pressure value amplitude deviates from the comparison value by a defined amount, the signal of the pressure sensor is then defined as implausible.
VERFAHREN ZUR UNTERDRUCKVERSORGUNG EINES PNEUMATISCHEN BREMSKRAFTVERSTÄRKERS EINES KRAFTFAHRZEUG-BREMSSYSTEMS
METHOD FOR THE VACUUM SUPPLY FOR A PNEUMATIC BRAKE BOOSTER OF A MOTOR VEHICLE BRAKING SYSTEM
PROCÉDÉ D'ALIMENTATION EN VIDE D'UN SERVOFREIN À DÉPRESSION PNEUMATIQUE D'UN SYSTÈME DE FREINAGE DE VÉHICULE AUTOMOBILE
2016-07-20
Patent
Electronic Resource
German
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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