Active rectifier self-check performing method for claw pole generators of motor vehicle, involves drawing phases to certain potential by actuation of switches, and determining phases to detect mistake in rectifier by measuring phase voltage

摘要

The method involves drawing three phases (22, 24, 26) to a certain potential by actuation of switches (62, 63, 64, 65, 66, 67, 80) that are alternately connected. One of the phases is determined to detect a mistake in an active rectifier (18) by measuring the phase voltage, where an error response takes place when the mistake is detected in the active rectifier. Quiescent current reduction is performed by actuation of additional switches (90, 92). Stator windings (12, 14, 16) are operated by the switches and diodes (52-57).