Patent ID: 6836027
Filing Date: 2004-12-28
Classification: B60K,B60L,B60W,Y02T

Abstract:
An auxiliary power control system for a series-type hybrid electric vehicle (SHEV), comprising:a DC generator driven by an engine for generating DC power; a DC/DC converter for converting the DC power generated by the DC generator to a voltage level; a generator control unit for controlling the voltage level of the DC generator; an engine control unit for controlling the engine; and an auxiliary power unit controller for outputting a voltage control signal to the generator control unit and a throttle control signal to the engine control unit such that the DC generator outputs a predetermined power; wherein the auxiliary power unit controller outputs the voltage control signal to increase an input voltage level of the DC generator, and the throttle control signal to maintain a throttle opening amount at a predetermined amount, when an rpm of the DC generator reaches a predetermined maximum rpm (Wmax), thereby increasing the DC generator output.