Patent ID: 7183750
Filing Date: 2007-02-27
Classification: H02P

Abstract:
1. A vehicle power-generation control unit comprising: an exciter circuit supplying an exciting current to a vehicle generator; and a control circuit controlling said exciting current; said control circuit including: a first function which is enabled when a control signal received from outside designates a first mode to control said exciting current such that an output power of said vehicle generator is kept at a value specified by said control signal; a second function which is enabled when said control signal designates a second mode to control said exciting current such that a generation voltage of said vehicle generator is kept at a target voltage specified by said control signal; and a third function which is enabled when said control signal designates said first mode to monitor whether or not said generation voltage is in a predetermined voltage range and to disable said first function in order to control said exciting current such that said generation voltage is kept at a preset voltage upon detecting that said generation voltage is out of said predetermined voltage range.