Study on a novel hydraulic pumping regenerative suspension for vehicles

Zhang, Yuxin; Zhang, Xinjie; Zhan, Min; Guo, Konghui; Zhao, Fuquan; Liu, Zongwei

doi:10.1016/j.jfranklin.2014.06.005

“…It is clear that a wide range of different damping forces can be obtained by adjusting the load resistance, which can be further optimised for a semi-active regenerative shock absorber in heavy haulage vehicles. Further increase in resistance results in a relatively small amount of regenerated power [23]. In Figures 13 and 14, the output voltage and power are in good agreement between prediction and measurement.…”

Section: Validation Using Different Load Resistancessupporting

confidence: 53%

“…Li et al [22] designed and fabricated a hydraulic shock absorber prototype with a hydraulic rectifier to characterise and identify the mechanical and electrical parameters of an electromechanical model. Zhang et al [23] introduced a hydraulic pumping regenerative suspension model for a medium-size sport-utility vehicle (SUV) to estimate optimal regenerative power and hydraulic efficiency. To compromise between ride health and safety and energy regeneration, automotive researchers have paid considerable attention to active-regenerative suspension.…”

Section: Introductionmentioning

confidence: 99%

Modelling, Testing and Analysis of a Regenerative Hydraulic Shock Absorber System

Wang

¹

,

Gu

²

,

Cattley

³

et al. 2016

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Abstract:To improve vehicle fuel economy whilst enhancing road handling and ride comfort, power generating suspension systems have recently attracted increased attention in automotive engineering. This paper presents our study of a regenerative hydraulic shock absorber system which converts the oscillatory motion of a vehicle suspension into unidirectional rotary motion of a generator. Firstly a model which takes into account the influences of the dynamics of hydraulic flow, rotational motion and power regeneration is developed. Thereafter the model parameters of fluid bulk modulus, motor efficiencies, viscous friction torque, and voltage and torque constant coefficients are determined based on modelling and experimental studies of a prototype system. The model is then validated under different input excitations and load resistances, obtaining results which show good agreement between prediction and measurement. In particular, the system using piston-rod dimensions of 50-30 mm achieves recoverable power of 260 W with an efficiency of around 40% under sinusoidal excitation of 1 Hz frequency and 25 mm amplitude when the accumulator capacity is set to 0.32 L with the load resistance 20 Ω. It is then shown that the appropriate damping characteristics required from a shock absorber in a heavy-haulage vehicle can be met by using variable load resistances and accumulator capacities in a device akin to the prototype. The validated model paves the way for further system optimisation towards maximising the performance of regeneration, ride comfort and handling.

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“…It is clear that the predicted and measured power can be seen to gradually decrease with an increase in load resistance, as shown in Figure 13. Further increase in resistance results in a relatively small amount of regenerated power [23]. In Figures 13 and 14, the output voltage and power are in good agreement between prediction and measurement.…”

Section: Validation Using Different Load Resistancessupporting

confidence: 53%

“…Li et al [22] designed and fabricated a hydraulic shock absorber prototype with a hydraulic rectifier to characterise and identify the mechanical and electrical parameters of an electromechanical model. Zhang et al [23] introduced a hydraulic pumping regenerative suspension model for a medium-size sport-utility vehicle (SUV) to estimate optimal regenerative power and hydraulic efficiency.…”

Section: Introductionmentioning

confidence: 99%

A novel fault diagnosis method for rotating machinery based on S transform and morphological pattern spectrum

Gao

¹

,

Wang

²

,

Zhang

³

et al. 2015

J Braz. Soc. Mech. Sci. Eng.

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Abstract:To improve vehicle fuel economy whilst enhancing road handling and ride comfort, power generating suspension systems have recently attracted increased attention in automotive engineering. This paper presents our study of a regenerative hydraulic shock absorber system which converts the oscillatory motion of a vehicle suspension into unidirectional rotary motion of a generator. Firstly a model which takes into account the influences of the dynamics of hydraulic flow, rotational motion and power regeneration is developed. Thereafter the model parameters of fluid bulk modulus, motor efficiencies, viscous friction torque, and voltage and torque constant coefficients are determined based on modelling and experimental studies of a prototype system. The model is then validated under different input excitations and load resistances, obtaining results which show good agreement between prediction and measurement. In particular, the system using piston-rod dimensions of 50-30 mm achieves recoverable power of 260 W with an efficiency of around 40% under sinusoidal excitation of 1 Hz frequency and 25 mm amplitude when the accumulator capacity is set to 0.32 L with the load resistance 20 Ω. It is then shown that the appropriate damping characteristics required from a shock absorber in a heavy-haulage vehicle can be met by using variable load resistances and accumulator capacities in a device akin to the prototype. The validated model paves the way for further system optimisation towards maximising the performance of regeneration, ride comfort and handling.

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“…The laboratory experiments and characterization of the prototype had demonstrated its capability as an EHRSA that could generate a maximum instantaneous power of about 249 kW and an average of 114 W, with a maximum harvesting efficiency of 38.81%. Zhang et al studied hydraulic EHRSA with integrated motion rectifier to facilitate unidirectional rotation of the generator (Figure ). Genetic algorithm (GA)‐based parameter optimization showed the optimum regenerative power as 33.4 W under 14.7‐Ω external load, input of 1.67‐Hz frequency, and 50‐mm displacement amplitude.…”

Section: Technologies Of Energy Harvesting From Pavements and Roadwaysmentioning

confidence: 99%

Energy harvesting from pavements and roadways: A comprehensive review of technologies, materials, and challenges

Ahmad

¹

,

Mujeebu

²

,

Farooqi

³

2019

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Summary Energy harvesting from pavements has been a topic of extensive research in the recent past. This domain has attracted not only the research community but also the industry and governmental authorities. The various sources exploited for energy harvesting from pavements and roadways are solar radiation, mechanical energy dissipated due to moving vehicles and pedestrians, geothermal energy, rainwater, and wind. This article presents an exhaustive and updated review of all potential means of energy harvesting from these sources. Following the introductory section, the article sequentially covers the energy harvesting methods and their research progress, materials, development of practical systems, commercial status, comparison of technologies, challenges, and concluding remarks. This study reveals that there is wide scope for further research and feasibility studies, which could lead to a wide‐spread implementation of the various technologies for energy harvesting from pavements and roads.

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Study on a novel hydraulic pumping regenerative suspension for vehicles

Cited by 93 publications

References 15 publications

Modelling, Testing and Analysis of a Regenerative Hydraulic Shock Absorber System

Modelling, Testing and Analysis of a Regenerative Hydraulic Shock Absorber System

A novel fault diagnosis method for rotating machinery based on S transform and morphological pattern spectrum

Energy harvesting from pavements and roadways: A comprehensive review of technologies, materials, and challenges

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