Power transmission for hybrid motor vehicle using electrical machine uses regulation of battery voltage to take account of voltage ratings of power semiconductors used in static converter that supplies drive motor

摘要

The wheels (4) are driven by an electric motor (1) supplied from a static converter (6) using power semiconductors. The battery (8) voltage is regulated to lie between a minimum and a maximum value. The minimum is set from semiconductor voltage rating, overvoltage, and circulating current. The maximum is set from the difference between rated voltage and maximum overvoltage and motor voltage.