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Control device for electric-powered vehicle, and electric-powered vehicle with control device as well as control method for electric-powered vehicle, and computer-readable recording medium bearing program for causing computer to execute control method
Control device for electric-powered vehicle, and electric-powered vehicle with control device as well as control method for electric-powered vehicle, and computer-readable recording medium bearing program for causing computer to execute control method
A carrier frequency setting unit sets a carrier frequency based on a torque command and a motor rotation number of a motor generator. A PWM signal producing unit produces phase modulated waves corresponding to respective phase voltage commands, and produces respective phase PWM signals corresponding to a relationship in magnitude between the respective phase modulated waves and a carrier having the carrier frequency. A PWM center control unit produces a PWM center correction value for variably controlling the PWM center when the carrier frequency is lower than a predetermined frequency, and provides the same to the PWM signal producing unit.
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