POWER OUTPUT DEVICE, VEHICLE, DRIVE DEVICE AND CONTROL METHOD FOR THE POWER OUTPUT DEVICE

摘要

PROBLEM TO BE SOLVED: To control a frequency of noise generated when controlling a drive circuit driving an electric motor more properly by switching a plurality of switching elements.

SOLUTION: When a minimum noise frequency difference ΔSBFmin as a minimum value of a difference between a frequency of noise generated when a first inverter is driven using a basic carrier frequency CF1tmp and a frequency of noise generated when a second inverter is driven using a basic carrier frequency CF2tmp is a threshold value ΔSBFref or below (S190-S210), the basic carrier frequency CF1temp is set to a carrier frequency CF1, and a frequency obtained by adding a predetermined positive value ΔCF2 to the basic carrier frequency CF2tmp is set to a carrier frequency CF2 (S230), and an engine and the two inverters are controlled such that the vehicle travels by request torque along with the drive of the two inverters using the set carrier frequencies CF1, CF2 (S240).

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