吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (1): 64-70.doi: 10.13229/j.cnki.jdxbgxb201701010

• Orginal Article • Previous Articles     Next Articles

Stability of high-speed and turning vehicle influenced by engine braking

LI Ling1, SHI Shu-ming1, WANG Xian-bin2, YU Zhuang1   

  1. 1.College of Transportation, Jilin University, Changchun 130022, China;
    2.School of Traffic, Northeast Forestry University, Harbin 150040, China
  • Received:2015-11-15 Online:2017-01-20 Published:2017-01-20

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Abstract:

In order to study the instability caused by engine braking during turning of high-speed vehicles, the engine braking torque was introduced to obtain its analytical expression, and the 5D nonlinear equation of the vehicle system was established. Numerical simulations of the turning of high-speed vehicle with engine braking and without engine braking were carried out to study the dynamic characteristics of the high-speed vehicle turning. Simulation results verify the rationality of the proposed vehicle model. Besides, it is revealed that the engine braking torque will cause the instability of the high-speed turning vehicle. The Poincare section of phase trajectory and the power spectral density were used to validate that the instability motion caused by engine braking is chaos motion.

Key words: vehicle engineering, engine braking, nonlinear dynamics, vehicle dynamics, chaos motion

CLC Number: 

  • U461.3
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