Patent ID: 6844634

Claim:
A vehicular electric power generation control apparatus, comprising: a generator driven by an engine and controlled for electric power generation based on an electric power generation command voltage; an aqueous secondary battery charged with electric power generated by the generator; a non-aqueous secondary battery connected in parallel to the aqueous secondary battery, the non-aqueous secondary battery having internal resistance smaller than internal resistance of the aqueous secondary battery and being charged with the electric power generated by the generator; a first voltage detecting unit for detecting a voltage of the aqueous secondary battery; a second voltage detecting unit for detecting a voltage of the non-aqueous secondary battery; a revolution number detecting unit for detecting a revolution number of the engine; a vehicle speed detecting unit for detecting a vehicle speed; an electric power generation command value computing unit for computing an electric power generation command value based on the revolution number of the engine and based on the vehicle speed detected by the vehicle speed detecting unit, the revolution number being detected by the revolution number detecting unit; and an electric power generation command voltage supplying unit for supplying, to the generator, an electric power generation command voltage based on the voltage of the aqueous secondary battery, the voltage of the aqueous secondary battery being detected by the first voltage detecting unit, based on the voltage of the non-aqueous secondary battery, the voltage of the non-aqueous secondary battery being detected by the second voltage detecting unit, and based on the electric power generation command value computed by the electric power generation command value computing unit.