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Automotive Engineering ›› 2023, Vol. 45 ›› Issue (1): 77-85.doi: 10.19562/j.chinasae.qcgc.2023.01.009

Special Issue: 底盘&动力学&整车性能专题2023年

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Research on the Performance of Regenerative Suspension with Buffer

Huixin Song1,2(),Bingyi Liu1,Liang Gu1,Jinqiu Zhang3   

  1. 1.School of Mechanical Engineering and Automation,Beijing Institute of Technology,Beijing 100081
    2.Chassis Parts Technical Department,China North Vehicle Research Institute,Beijing 100072
    3.Department of Vehicle Engineering,Academy of Army Armored Force,Beijing 100072
  • Received:2022-07-14 Revised:2022-08-08 Online:2023-01-25 Published:2023-01-18
  • Contact: Huixin Song E-mail:13911876828@139.com

Abstract:

In order to solve the problem of the deterioration of the performance of the regenerative suspension caused by inertial mass, the solution of the absorber in series with buffer is studied. A two degree of freedom regenerative suspension model with buffer is established. The theoretical research shows that adding buffer can improve the spring loaded mass acceleration, suspension dynamic deflection and reduce the inertia force. Through the analysis of transmission characteristics, the effect of the buffer on the velocity amplitude of the absorber is revealed. Comparing the suspension dissipation power with or without buffer, the result shows that the buffer reduces the suspension dissipation power. Through the bench comparison test, it is verified that adding the buffer can effectively improve the performance of the regenerative suspension, with the root mean square value of spring loaded mass acceleration reduced by 58.0%, the root mean square value of wheel relative dynamic load reduced by 33.3%, and the root mean square value of suspension dynamic deflection reduced by 27.6%.

Key words: buffer, inertia force, suspension characteristics, regenerative suspension