吉林大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (增刊1): 27-33.

• paper • Previous Articles     Next Articles

Modeling of wheel loader powertrain with three-parameters shift strategy and optimization with genetic algorithm

WANG Ji-xin1, GONG Da-peng1, ZHANG Ying-shuang1, DENG Ji-ye1, SHEN Yong2   

  1. 1. College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China;
    2. Xuzhou Construction Machinery Science and Technology Co Ltd, Xuzhou 221005, China
  • Received:2010-11-25 Online:2011-09-01 Published:2011-09-01

Abstract:

A three-parameter shift strategy of wheel loader using throttle opening,vehicle speed,and coefficient of hydraulic load as control parameters was proposed.Bad shift behavior caused by traditional method,which treats the load of hydraulic system as a constant,was avoided.The dynamic simulation model of powertrain was established,the rationality of which was verified through analyzing the characteristics of fuel consumption and load signals of powertrain.A transmission performance optimization model based on genetic algorithm was constructed.The simulation results showed that the optimization solution obtained by the simulation model and three-parameter shift strategy can achieve lower fuel consumption on the condition that the powertrain meets the dynamic requirements.

Key words: vehicle engineering, wheel loader, powertrain, shift strategy, load simulation, genetic algorithm

CLC Number: 

  • U463.2


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