›› 2012, Vol. 42 ›› Issue (05): 1107-1112.

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Torque-based vehicle load recognition method

LIU Hong-bo1, LEI Yu-long1, FU Yao1, ZHANG Jian-guo2, LI You-de1   

  1. 1. State Key Laboratory of Automobile Simulation and Control,Jilin University,Changchun 130022,China;
    2. Department of Mechanical Engineering, Armor Technique Institute of PLA,Changchun 130117, China
  • Received:2011-08-21 Online:2012-09-01 Published:2012-09-01

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Abstract: By analyzing the relationship between the gearbox output torque and the resistance torque in the classic dynamics equation of the vehicle, the traditional load concept was extended to the generalized load, and a torque-based vehicle load recognition method was proposed to detect the informations of the road slope, the cargo magnitude and the road surface resistance during the driving of the vehicle with automatic transmission. Requiring only the common sensors, the proposed method recognizes the extended or generalized load from the difference between the current gearbox output torque and the resistance torque under zero-load condition. The principle of the load recognition was described in detail, the effects of different driving conditions on the load recognition were analyzed, and the detailed load recognition steps were given. The vehicle tests showed that the method is practical and reliable, can effectively recognize the load informations during the driving of the vehicle with automatic transmission.

Key words: vehicle engineering, load recognition, slope recognition, cargo recognition, road resistance recognition

CLC Number: 

  • U463.2
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