Journal
JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
Volume 352, Issue 2, Pages 485-499Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jfranklin.2014.06.005
Keywords
Regenerative suspension; Asymmetric damping forces; Unidirectional pumping oil; Optimization
Categories
Funding
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body [31115028]
- China Postdoctoral Science Foundation [2012M520028]
- National Natural Science Foundation of China [51205155]
- Natural Science Foundation of Jilin Province [20140520136JH]
- National Basic Research Program of China (973 Program) [2011CB711201]
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In order to improve the vehicle fuel economy, ride comfort and handling, this paper presents the design, modeling, and performance study of a novel hydraulic pumping regenerative suspension based on an energy recovery unit and a hydraulic actuator. It can harvest energy from suspension vibration and lessen damping oil temperature rising. In addition, variable damping force can be achieved by controlling the electrical load of the energy recovery unit, and proper asymmetric ratio of compression/extension damping force needed by traditional vehicles can be obtained via the special layout of this suspension. It shows that an optimal regenerative power 33.4 W can be obtained from each regenerative suspension via the GA optimization. The physical based model and parameter study in this paper can be used in the regenerative suspension semi-active controller design and the development of this novel hydraulic pumping regenerative suspension in the future. (C) 2014 The Franklin Institute. Published by Elsevier Ltd. All rights reserved.
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