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Design and experimental study of the energy-regenerative circuit of a hybrid vehicle suspension
Science Progress ( IF 1.906 ) Pub Date : 2019-09-16 , DOI: 10.1177/0036850419874999
Xiaofeng Yang; Wentao Zhao; Yanling Liu; Long Chen; Xiangpeng Meng

The vehicle suspension system is the fundamental device for improving ride comfort and handling stability.1–4 Recently, researchers found that the energy of the suspension vibration can be regenerated by means of magnetic suspension5–11 and piezoelectric suspension.12–16 In Segal and Lu,17 the influence of suspension damping, tires, and road surface roughness on the vehicle running resistance was analyzed, and it was noted that, when the vehicle drove at a speed of 48 km/h, the damper dissipated approximately 200 W of energy. Hsu18 deeply studied the active suspension based on the Linear-Quadratic-Gaussian (LQG) control strategy, and it was found that, when the vehicle was driving at a high speed of 96 km/h, the vibration energy can be regenerated by 400 J. Yu et al.19 analyzed the feasibility of the active energy-regenerative suspension, and the simulation results showed that, when the vehicle drove at 20 m/s on a C level road for 20 s, the energy dissipated by the passive suspension was 651 kJ. However, the feed-in energy cannot reflect the energy recovery capacity of the energy-regenerative suspension and the energy-regenerative efficiency should be used to reflect the energy-regenerative capacity. In Zhang et al.,20 a novel regenerative shock absorber was designed and fabricated, and the double speed regenerative shock absorber utilizing the rack and pinion mechanism was applied to increase the magnet speed. The results showed that the proposed design can increase the output power by four times compared to the baseline design under the sinusoidal and random road input.
更新日期:2020-04-10

 

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