Patent ID: 6614207
Filing Date: 2003-09-02
Classification: H02P

Abstract:
A vehicular power generator control apparatus comprising:a voltage control circuit for controlling an output voltage of a power generator by interrupting a switching device connected in series with a field coil of the power generator; a rotation speed detecting circuit connected to one phase terminal of a stator coil of the power generator for detecting a rotation speed of the power generator based on a voltage appearing at the one phase terminal; a leakage detecting circuit for detecting that a leakage current flows to the one phase terminal; and a maximum conduction rate restricting circuit for setting a maximum conduction rate prescribing an upper limit value of a conduction rate of the switching device to a first rate until the rotation speed of the power generator detected by the rotation speed detecting circuit exceeds a predetermined value and setting the maximum conduction rate to a second rate higher than the first rate when the leakage current is detected by the leakage detecting circuit.