The present disclosure provides a method of diagnosing an oil leak of an engine clutch in a hybrid electric vehicle including: when the engine starts up in the hybrid electric vehicle, operating a hydraulic actuator provided in the engine clutch, wherein the hydraulic actuator is configured to perform engagement or disengagement between an engine and a motor; determining displacement of a piston provided in the hydraulic actuator and pressure for any displacement of a plurality of the displacements of the piston; calculating a pressure gradient based on the displacement of the piston and the pressure for any displacement of the plurality of the displacements of the piston; and determining the oil leak of the engine clutch based on the pressure gradient.
Method of diagnosing oil leak of engine clutch in hybrid electric vehicle
2019-12-31
Patent
Electronic Resource
English
IPC: | G07C TIME OR ATTENDANCE REGISTERS , Zeit- oder Anwesenheitskontrollgeräte / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen |
METHOD OF DIAGNOSING OIL LEAK OF ENGINE CLUTCH IN HYBRID ELECTRIC VEHICLE
European Patent Office | 2018
|Method for diagnosing leak of working fluid for engine clutch in hybrid electric vehicle
European Patent Office | 2018
|Method for diagnosing leak of working fluid for engine clutch in hybrid electric vehicle
European Patent Office | 2021
ENGINE CLUTCH DISENGAGEMENT CONTROL METHOD FOR HYBRID ELECTRIC VEHICLE
European Patent Office | 2021
|Engine clutch disengagement control method for hybrid electric vehicle
European Patent Office | 2022
|