Patent ID: 9168913
Filing Date: 2015-10-27
Classification: B60K,B60W,F16H,Y02T

Abstract:
1. An oil pump system of a hybrid vehicle, which supplies operating hydraulic pressure to a transmission of the hybrid vehicle, the oil pump system comprising: an electric oil pump which supplies the operating hydraulic pressure to the transmission based on a speed command; a data detector which detects data for controlling the electric oil pump; and a controller which sets driving modes of the electric oil pump based on the data detected by the data detector, determines a basic flow rate of the set driving modes, determines a final flow rate by compensating for the basic flow rate, and applies the speed command to the electric oil pump, wherein the operating hydraulic pressure is supplied to the transmission only by the electric oil pump, and the speed command is determined based on target hydraulic pressure, an oil temperature, and the final flow rate, wherein the electric oil pump is continuously operated from when the hybrid vehicle starts to when the hybrid vehicle is turned off.