Patent ID: 7336002
Filing Date: 2008-02-26
Classification: B60R,F02N,H02J,Y02T

Abstract:
1. A vehicle power supply system comprising: a generator, which is mounted on a vehicle; a main power source, to which an ordinary load is connected; an auxiliary power source, which is connected to the generator, wherein the auxiliary power source recovers regenerative electric power, which is generated by the generator using kinetic energy or thermal energy, and the auxiliary power source stores electric power that is generated by the generator; a first supply circuit, which connects the auxiliary power source to the main power source and the ordinary load through a DC/DC converter; a second supply circuit, which is in parallel with the first supply circuit and which connects the auxiliary power source to the main power source and the ordinary load through a switch; and a control means for controlling operation of the DC/DC converter and operation of the switch, wherein the control means is enabled to select one of: a first control state, in which the DC/DC converter is driven, and the switch is opened; and a second control state, in which the DC/DC converter is stopped, and the switch is closed.