Mode change control system for hybrid vehcile

Mode change control system for hybrid vehcile

  • CN 101,161,523 B
  • Filed: 10/11/2007
  • Issued: 02/20/2013
  • Est. Priority Date: 10/12/2006
  • Status: Active Grant
First Claim
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1. the mode transition controller of a motor vehicle driven by mixed power, this motor vehicle driven by mixed power constitutes, have driving engine and motor/generator as propulsion source, between above-mentioned driving engine and motor/generator, can change the 1st power-transfer clutch of transmitting torque capacity every dress, the wheel drive system from motor/generator to drive wheel, insertion setting can be changed the 2nd power-transfer clutch of transmitting torque capacityThis motor vehicle driven by mixed power can be selected electric driving mode and hybrid power pattern, this electric driving mode is to make engine stop, by when disconnecting described the 1st clutch, engaging described the 2nd clutch, only between described motor/generator and described driving wheel, carry out transmission of power, this hybrid power pattern is by engaging simultaneously described the 1st clutch and described the 2nd clutch, between described engine and described driving wheel, perhaps between described engine, described motor/generator and described driving wheel, carry out transmission of powerIn this motor vehicle driven by mixed power, corresponding with storage battery electric power storage state and select described electric driving mode and hybrid power pattern,It is characterized in that,Described mode transition controller constitutes, and can between described electric driving mode and described hybrid power pattern, carry out pattern and switch,The judgement that this pattern is switched is carried out based on the 1st relatively low setting storage battery electric power storage state and the 2nd relatively high setting storage battery electric power storage state, the 1st sets storage battery electric power storage state for the switching judging of carrying out from described electric driving mode to described hybrid power pattern, the 2nd sets storage battery electric power storage state for the switching judging of carrying out from described hybrid power pattern to described electric driving modeSelecting under the storage battery electric power storage state of described hybrid power pattern, when carrying out the low load running of vehicle, setting storage battery electric power storage Status Change with the described the 2nd is the value lower than its initial value, even so that should select under the storage battery electric power storage state of hybrid power pattern, also at storage battery electric power storage state during more than or equal to the storage battery electric power storage state of the low value of this change, permission is to the switching of electric driving modeAnd, when under having selected the storage battery electric power storage state of described hybrid power pattern, carrying out described low load running, the described the 2nd sets the lower value of the described change of storage battery electric power storage state, to be reduced to the value of setting storage battery electric power storage state consistency with the described the 1st, based on the 1st setting storage battery electric power storage state, the switching from the hybrid power pattern to electric driving mode is judged.

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