| abstract |
The invention provides a kind of power system of serial mixed power vehicle, comprising: fuel source; Control system; At least two auxiliary power units, it receives fuel from fuel source under control of the control system independently of one another, is that direct current energy outputs to common current bus by the chemical energy in fuel; Electrokinetic cell, it is electrically connected to common current bus, carries out charging or being discharged by common current bus to receive electric energy from common current bus under control of the control system; And traction electric machine, it is electrically connected to common current bus, to receive electric energy from common current bus under control of the control system, is converted into the transmission system driving vehicle operating that mechanical energy passes to vehicle.This power system can carry out work by flexible combination multiple stage driving engine, allow the substitute fuel using energy density lower, allowing the engine operation in auxiliary power unit in being in oil consumption with discharging very low conditioned area, effectively reducing discharge, improve fuel efficiency. |