Patent ID: 7677342
Filing Date: 2010-03-16
Classification: B60K,B60L,B60W,Y02T

Abstract:
1. A hybrid system of vehicle designed to drive a generator by an engine and supply an electric power generated by said generator directly to a wheel-driving electric motor so as to drive said motor, comprising: required motor output setting means for setting a required output of said motor depending on a required vehicle driving power; required generator output setting means for setting a required output of said generator depending on said required motor output set by said required motor output setting means; engine output setting means for setting an output of said engine depending on said required generator output set by said required generator output setting means; a battery connected to said generator through an inverter and a converter; first switching means for switching electrical connection between said generator and said battery; second switching means for switching electrical connection between said generator and said motor; and switching control means for controlling said first and second switching means to allow electric power to be supplied from said battery to said motor and to allow said battery to be charged by said generator; wherein said switching control means is operable, when said battery is charged by said generator, to control said first and second switching means in such a manner that said generator is connected to said battery within a given time period around a zero-crossing point along an AC waveform except for positive and negative peak regions in one AC cycle.