OIL PUMP CONTROL APPARATUS FOR PLUG-IN HYBRID VEHICLE AND INTIAL STAGE DRIVING METHOD THEREOF

摘要

the present invention is a plug-in hybrid vehicle driven oil pump control apparatus and method of his early that the high voltage battery and receiving power supply from the battery is applied to the oil pump power supply that provides power to drive the driving motor, motor driving means to switch the driving power for driving the motor, the communication unit for performing communication with the main controller of the vehicle, the transmission oil temperature and a controller to detect on the basis of the oil temperature is passed from the oil temperature detection means and the main control unit via the communication unit to transmit to the main control unit for controlling the driving of the oil pump when the motor is initially driven, the controller is the oil temperature is output to a preset initial temperature is higher than the first predetermined motor drive means, the PWM control signal is set to the duty value, the oil temperature is lower than the initial temperature is set to the second duty value set higher than the first duty value Establish a configuration that outputs the PWM control signal. By using the plug-in hybrid vehicle oil pump control unit and its initial drive method described above, the present invention is set by changing the initial drive duty of the motor according to the temperature of the transmission fluid during initial drive, and the drive duty is set beforehand in the initial set was increased by as much as the reference ratio control to drive the motor due to the increased oil viscosity at low temperatures in the oil pump initial drive condition to reduce the load on the oil pump.