Apparatus of controlling vehicle provided with motor and control method thereof

摘要

An apparatus for controlling a vehicle provided with a motor includes a current command generator that determines first and second axes currents according to driving conditions, and a current controller that generates first and second axes voltages by using the first and second axes currents and feedback currents. An axis converter converts the first and second axes voltages into 3-phase voltages, 3-phase feedback currents into first and second axes feedback currents, and transmits the same to the current controller. A pulse width modulation (PWM) generator receives the 3-phase voltages and generates corresponding 3-phase signals, and a PWM inverter generates 3-phase currents and transmits the same to the axis converter. A motor is driven by the 3-phase currents. A resolver detects a phase of the motor and transmits the same to the current command generator and the axis converter. A resolver offset determining unit calculates a resolver offset value.

主权项

1. An apparatus of controlling a vehicle provided with a motor, the apparatus comprising:
a current command generator configured to determine first and second axes currents according to driving conditions; a current controller configured to generate first and second axes voltages by using the first and second axes currents generated by the current command generator and first and second axes feedback currents; an axis converter configured to convert the first and second axes voltages into 3-phase voltages, convert 3-phase feedback currents into first and second axes feedback currents, and transmit the converted 3-phase voltages and the converted first and second axes feedback currents to the current controller; a pulse width modulation (PWM) generator configured to receive the 3-phase voltages from the axis converter and generate corresponding 3-phase signals; a PWM inverter configured to generate 3-phase currents from the 3-phase signals and transmit the 3-phase currents as 3-phase feedback currents to the axis converter; a motor configured to be driven upon receiving the 3-phase currents from the PWM inverter; a resolver configured to detect a phase of the motor and transmit the detected phase of the motor to the current command generator and the axis converter; and a resolver offset determining unit configured to calculate a resolver offset value α by using a D axis voltage value vd and a Q axis voltage value vq sensed at a certain speed of the motor, mapping data with respect to a current command or a torque command at the certain speed of the motor, and an offset candidate value.