Patent ID: 6624529
Filing Date: 2003-09-23
Classification: B60R,H02J,Y02T,Y10S

Abstract:
A power supply apparatus for a vehicle, comprising:a power feed portion including a power storage portion and a power generating portion, the power storage portion including a storage battery, the power storage portion and the power generating portion transmitting and receiving electric power to and from each other, the power feed portion feeding electric power to a plurality of on-vehicle loads; and a control portion for controlling the electric power fed from the power feed portion to the on-vehicle loads; wherein the control portion includes means for, in cases where the sum of feedable electric power is smaller than the sum of required electric power or in cases where an electric quantity related to the sum of feedable electric power is smaller than an electric quantity related to the sum of required electric power, increasing the sum of feedable electric power or decreasing the sum of required electric power, wherein the sum of feedable electric power is equal to electric power which can be fed from the power feed portion to the on-vehicle loads, and which contains electric power generated by the power generating portion and electric power feedable from the storage battery, and wherein the sum of required electric power is equal to the sum of electric power consumed by the on-vehicle loads.