Patent ID: 9556864
Date: 2017-01-31
CPC Classifications: F04B

Claim:
1. A method of controlling an auxiliary pump which supplies hydraulic oil to a hybrid transmission of a vehicle, the method comprising: starting a predetermined time interval of deactivation when a predetermined event, which favors suction of air by the auxiliary pump, is simultaneously detected; deactivating the auxiliary pump simultaneously with starting the predetermined time interval of deactivation and detecting the predetermined event; activating the auxiliary pump, simultaneously with expiration of the predetermined time interval of deactivation, for a duration of another predetermined time interval of activation so as to avoid accumulation of air at an intake area of the auxiliary pump; and only activating the auxiliary pump upon simultaneous expiration of the predetermined time interval of deactivation, and detection of the predetermined event, which favors the suction of air by the auxiliary pump, upon expiration of the predetermined time interval of deactivation.