scholarly journals Design and experimental study of the energy-regenerative circuit of a hybrid vehicle suspension

2019 ◽  
Vol 103 (1) ◽  
pp. 003685041987499 ◽  
Author(s):  
Xiaofeng Yang ◽  
Wentao Zhao ◽  
Yanling Liu ◽  
Long Chen ◽  
Xiangpeng Meng

This article concerns a hybrid vehicle suspension system that can regenerate energy from vibrations. To further improve the performance of the hybrid vehicle suspension system, the design of the energy-regenerative circuit is investigated. First, the force tests of the linear motor used in the hybrid vehicle suspension were carried out, and the key parameters of the linear motor were obtained. Then, the selection procedures of the protective resistance, inductance, and initial terminal voltage of the super capacitor were discussed. These aforementioned parameters’ values were determined by considering the impact of the hybrid suspension on the dynamic performance indexes and the energy-regenerative efficiency. Simulations showed that, in comparison to the original hybrid suspension system, the designed hybrid suspension effectively improved the energy-regenerative efficiency, and that the dynamic performance indexes of the suspension were synchronously improved. Given the result of the simulation analysis, which were validated by bench tests, it is shown that the optimized energy-regenerative circuit presents an enhanced regeneration efficiency, with an improvement of nearly 13% compared to the original suspension system.

Author(s):  
Ruochen Wang ◽  
Xiangpeng Meng ◽  
Dehua Shi ◽  
Xiaoliang Zhang ◽  
Yuexia Chen ◽  
...  

A vehicle suspension system with inerters is proposed and its dynamic model is established to analyse its dynamic performance. The structure of the suspension with inerters is also constructed and its form and structural parameters are optimized. Then the rack-and-pinion inerter and the bench test system of suspension are designed. Based on the simulation, bench test is conducted. It has shown that theoretical research is consistent with the test results. Moreover, the structure of the suspension with inerters is so simple, that it can be easily achieved. Consequently the passenger comfort is greatly enhanced and the comprehensive performance of the car has been coordinated. Therefore, simulated analysis and experimental tests in this paper can provide evidence for further research on suspension with inerters.


2014 ◽  
Vol 494-495 ◽  
pp. 116-119
Author(s):  
Sheng Qin Li ◽  
Chun Bo Yang ◽  
Li Zhao

Vehicle suspension system plays an important role in the influence of whole vehicle handling and riding characteristic, as an important part of vehicle chassis system. In the paper, based on the basic test parameters and relevant modeling data of ex-MacPherson suspension of the sample car, the virtual prototype model of this suspension is built by making use of ADAMS/Car module. According to the requirements of the relevant design, some of the model parameters have been adjusted, on the basis of which, K&C characteristic simulation before and after the adjustment is done. The results show that, after adjustment, the majority of suspension K&C characteristic is satisfied, and improved the kinematics of the suspension system.


2016 ◽  
Vol 823 ◽  
pp. 247-252 ◽  
Author(s):  
Ion Preda

The design of a vehicle suspension system starts with very few input parameters. Simple models are used during initial simulations in order to ensure the desired compromise between comfort and dynamic performance qualities, at different vehicle speeds and loads. That stage leads to the setup of the needed suspension parameters on the model, mainly the stiffness of the suspension springs and tires and the damping coefficient.In an algorithmic way, this paper summarizes design recommendations existing in the field of vehicle suspensions. Based on the procedure in this article, a computer program was implemented in the software MDesign.


Author(s):  
Xubin Song ◽  
Dongpu Cao

This research proposes a novel transmissibility shaping control (T-shaping Control) method and explores its potential performance benefits for active vehicle suspension systems with energy-regeneration [1]. The proposed model-free T-shaping control integrates a range of sub-strategies based on the frequency information extracted from measured dynamic signals. Each strategy is designed to function dominantly in a certain frequency range to achieve a desirable (or optimal) transmissibility of vehicle responses for enhanced vehicle dynamic performance and safety. Different sub-strategies employed for different frequency ranges consist of stiffness control, skyhook control, groundhook control, and variable damping. In order to demonstrate the effectiveness of this proposed control method, a novel tunable compressible fluid strut (CFS) integrating with digital displacement pump motor (DDPM) is used to form an energy-regenerative controllable vehicle suspension system [2–4]. Two vehicle models, including quarter-car and full-vehicle models, are employed to investigate the dynamic performance of a road vehicle with the proposed T-shaping control and novel regenerative suspension system. The results demonstrate the effectiveness and considerable performance enhancements of the proposed novel T-shaping control applied to the novel CFS suspension system in a very energy-efficient manner.


2000 ◽  
Author(s):  
Carlo M. Miano ◽  
Massimiliano Gobbi ◽  
Giampiero Mastinu ◽  
Riccardo Cesarini

Abstract The paper presents a procedure for the integrated design (tuning) of tyres and suspensions of racing cars. A complete model of a racing car has been developed and implemented. The model is suitable to simulate the vehicle behaviour in extreme driving conditions. A number of ground tests have been performed to validate the vehicle model, with fully satisfactory results. Many different driving situations (steady state, J-turn, lane-change, power-on/off while steering, braking on a bend, passing over a kerb while steering) have been considered. By means of a Multi-criteria approach many performance indexes have been optimised by changing the parameters related both to the vehicle suspension system and to the tyre characteristics. A global-approximation model has been built (the original physical model has been substituted by another purely numerical model), allowing fast optimisations. A number of preferred solutions have been selected from the optimal set. Professional drivers tested the cars fitted with optimal suspension/tyre settings. The improvements predicted by computations were substantially confirmed. The adopted procedure has proved to be reliable and effective both for obtaining the highest performances and for reducing the number of ground tests.


2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Qinwen Yang ◽  
Jin Huang ◽  
Gang Wang ◽  
Hamid Reza Karimi

The performance index of a suspension system is a function of the maximum and minimum values over the parameter interval. Thus metamodel-based techniques can be used for designing suspension system hardpoints locations. In this study, an adaptive metamodel-based optimization approach is used to find the proper locations of the hardpoints, with the objectives considering the kinematic performance of the suspension. The adaptive optimization method helps to find the optimum locations of the hardpoints efficiently as it may be unachievable through manually adjusting. For each iteration in the process of adaptive optimization, prediction uncertainty is considered and the multiobjective optimization method is applied to optimize all the performance indexes simultaneously. It is shown that the proposed optimization method is effective while being applied in the kinematic performance optimization of a McPherson suspension system.


Author(s):  
Maria Aline Gonçalves ◽  
Rodrigo Tumolin Rocha ◽  
Frederic Conrad Janzen ◽  
José Manoel Balthazar ◽  
Angelo Marcelo Tusset

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