ACCELERATOR ACCELERATING CONTROL DEVICE OF FOUR-WHEEL DRIVE ELECTRIC VEHICLE AND METHOD THEREOF

摘要

A method of controlling an accelerator of a four-wheel drive electric vehicle and a device thereof are provided. The method comprises the step of controlling power output of the vehicle by a sum of output torque of a main drive motor and an auxiliary drive motor, wherein the output torque of the main drive motor is determined by a depressing degree for an accelerator pedal. The output torque T0 of the auxiliary drive motor is determined by obtaining a torque calculating factor GainAccSum being a cumulative value of acceleration GainAcc of the accelerator pedal; determining a maximum output torque T of the auxiliary drive motor at a current speed of the vehicle; and calculating the output torque T0 of the auxiliary drive motor varying between 0 and T based on the torque calculating factor GainAccSum and the maximum output torque T of the auxiliary drive motor at the current speed, wherein the output torque T0 of the auxiliary drive motor is increased as the torque calculating factor GainAccSum increasing. The accelerator accelerating control method and the device provide quick response and high precision of the power output.