• ISSN 0258-2724
  • CN 51-1277/U
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Volume 25 Issue 5
Oct.  2012
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Article Contents
Journal of Southwest Jiaotong University  > 2012  >  25(5): 855-860.
YANG Heli. Design and Performance Analysis of Efficient Semi-active Energy-Regenerative Suspension[J]. Journal of Southwest Jiaotong University, 2012, 25(5): 855-860. doi: 10.3969/j.issn.0258-2724.2012.05.020
Citation: YANG Heli. Design and Performance Analysis of Efficient Semi-active Energy-Regenerative Suspension[J]. Journal of Southwest Jiaotong University, 2012, 25(5): 855-860. doi: 10.3969/j.issn.0258-2724.2012.05.020
shu

Design and Performance Analysis of Efficient Semi-active Energy-Regenerative Suspension

doi: 10.3969/j.issn.0258-2724.2012.05.020
  • Received Date: 07 May 2012
  • Publish Date: 25 Oct 2012
    Abstract
  • On the basis of normal gear and rack type suspension, an efficient semi-active energy-regenerative suspension was designed to improve the damping properties and energy-regenerative characteristics of gear and rack type suspension. This suspension consists of a NdFeB permanent magnet generator, a variable-speed mechanism, a reversing gear and an impact protection device. The simulation and experiment for the efficient semi-active suspension were made. The research results show that compared with the gear and rack type suspension, the rotary inertia and volume of generator rotor of the semi-active energy-regenerative suspension are reduced by 71% and about 40% respectively, exciting power is saved by 20 to 30 W, and dead zone is decreased from -0.22-0.22 m/s to -0.04-0.04 m/s. Furthermore, damping and energy-regenerative characteristics are improved, and energy conversion efficiency raises from about 20% to over 50%. Compared with the passive suspension, the maximum value of dynamic tyre load, the maximum vertical acceleration of sprung mass and suspension dynamic deflection all are decreased by over 20%.

     

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