A method for detecting fluid leakage from a pressure-decrease valve in a hydraulic brake system having an ABS device including: a shutoff valve for shutting off supply of a working fluid from a fluid-pressure supply source to a brake device provided for a wheel; the pressure-decrease valve for discharging the working fluid from the brake device; a reservoir for storing the working fluid discharged from the pressure-decrease valve; and a return pump for returning the working fluid stored in the reservoir to a portion between the shutoff valve and the fluid-pressure supply source, the method including the steps of: activating the return pump in a state in which the hydraulic brake system is not in ABS operation, and detecting the fluid leakage from the pressure-decrease valve based on a variation in a pressure of the working fluid in the fluid-pressure supply source caused when the return pump is activated.
METHOD FOR DETECTING FLUID LEAKAGE
03.03.2016
Patent
Elektronische Ressource
Englisch
LEAKAGE CURRENT DETECTING DEVICE, LEAKAGE CURRENT DETECTING METHOD, AND ELECTRIC VEHICLE
Europäisches Patentamt | 2021
|ELECTRIC LEAKAGE DETECTING APPARATUS ELECTRIC LEAKAGE DETECTING METHOD AND ELECTRIC VEHICLE
Europäisches Patentamt | 2021
|ELECTRIC LEAKAGE DETECTING APPARATUS ELECTRIC LEAKAGE DETECTING METHOD AND ELECTRIC VEHICLE
Europäisches Patentamt | 2021
|