Method for controlling inverter in drive train of motor vehicle, involves permanently-closing controllable switch in angular range of phase angle of current space vector, and adjusting angular range based on the components temperature

摘要

The method involves supplying a multi-phase electric current (I-U,I-V,I-W) to an electric machine (14) of an inverter (10). The inverter is controlled by the successive different switching states of the controllable switches (S-HA-S-HC,S-LA-S-LC) to provide electric current in the form of a current space vector. One of the controllable switches is permanently closed in an angular range of a phase angle of the current space vector to reduce switching losses of the controllable switch. The angular range is adjusted depending on the temperature of the components. Independent claims are included for the following: (1) device for controlling inverter; and (2) drive train of motor vehicle.