Energy Requirements of a Passive and an Electromechanical Active Suspension System

Efatpenah, Keyanoush; Beno, J.H.; Nichols, Steven P.

doi:10.1076/vesd.34.6.437.2050

Cited by 17 publications

(9 citation statements)

References 9 publications

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“…Ballo [150] shows the compromise between the performance enhancement and power demand for an active suspension. In contrast to Karnopp's suggestion in [147], Efatpenah et al [151] conclude that for rough or off-road operations, an electromechanical suspension system could considerably enhance vehicle ride, with more power saving than a passive suspension system. Such topic should be further examined, which also indicates the important role of ground roughness conditions in the power dissipation of a vehicle suspension system, where energy loss can be significant over rough ground.…”

Section: Energy Harvesting Suspension Systemsmentioning

confidence: 81%

“…The stiffness and damping properties of vehicle suspension systems yield a coupled effect on suspension power consumption and utilization characteristics due to complex operating conditions, on which a number of efforts have been attempted in the past three decades [144][145][146][147][148][149][150][151][152]. However, no generally-accepted guidance has been developed on the suspension power characteristics, partially due to the fact that vehicles generally operate in a wide range of speeds and road roughness conditions.…”

Section: Energy Harvesting Suspension Systemsmentioning

confidence: 99%

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Editors’ perspectives: road vehicle suspension design, dynamics, and control

Cao

Song

Ahmadian

2011

Vehicle System Dynamics

316

151

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This paper provides an overview of the latest advances in road vehicle suspension design, dynamics, and control, together with the authors' perspectives, in the context of vehicle ride, handling and stability. The general aspects of road vehicle suspension dynamics and design are discussed, followed by descriptions of road roughness excitations with a particular emphasis on road potholes. Passive suspension system designs and their effects on road vehicle dynamics and stability are presented in terms of in-plane and full-vehicle arrangements. Controlled suspensions are also reviewed and discussed. The paper concludes with some potential research topics, in particular those associated with development of hybrid and electric vehicles.

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Section: Energy Harvesting Suspension Systemsmentioning

confidence: 81%

Section: Energy Harvesting Suspension Systemsmentioning

confidence: 99%

Editors’ perspectives: road vehicle suspension design, dynamics, and control

Cao

Song

Ahmadian

2011

Vehicle System Dynamics

316

151

View full text Add to dashboard Cite

show abstract

“…The type of energy regenerative active suspension raised provides a method to solve the above mentioned problems, that is, through the regeneration of a vehicle's vertical vibration energy caused by an uneven road surface, the heat energy dissipated by the suspension's shock absorber in the form of friction is transformed into a recyclable power through the energy recovery device, which is used for active suspension active control and utilization, thereby reducing the problem of the large energy consumption of the active suspension [6][7][8]. At present, the research on energy regenerative suspension systems is mainly focused on how to improve the efficiency of energy regeneration, while ignoring the original design of the suspension and lacking a coordination analysis of the suspension system's damping performance and energy regenerative performance [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Modeling and Coordinate Optimization of a Semi-Active Energy Regenerative Suspension with an Electro-Hydraulic Actuator

Kou

Wang

et al. 2018

Algorithms

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In order to coordinate the damping performance and energy regenerative performance of energy regenerative suspension, this paper proposes a structure of a vehicle semi-active energy regenerative suspension with an electro-hydraulic actuator (EHA). In light of the proposed concept, a specific energy regenerative scheme is designed and a mechanical properties test is carried out. Based on the test results, the parameter identification for the system model is conducted using a recursive least squares algorithm. On the basis of the system principle, the nonlinear model of the semi-active energy regenerative suspension with an EHA is built. Meanwhile, linear-quadratic-Gaussian control strategy of the system is designed. Then, the influence of the main parameters of the EHA on the damping performance and energy regenerative performance of the suspension is analyzed. Finally, the main parameters of the EHA are optimized via the genetic algorithm. The test results show that when a sinusoidal is input at the frequency of 2 Hz and the amplitude of 30 mm, the spring mass acceleration root meam square value of the optimized EHA semi-active energy regenerative suspension is reduced by 22.23% and the energy regenerative power RMS value is increased by 40.51%, which means that while meeting the requirements of vehicle ride comfort and driving safety, the energy regenerative performance is improved significantly.

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“…The type of energy regenerative active suspension raised provided a method to solve the above mentioned problems, that is, through the regenerative of the vibration energy caused by the uneven road surface, the energy dissipated by the energy dissipation of shock absorber can be converted into the electric energy that can be recycled to reduce the energy consumption of the active suspension [6][7][8]. At present, the research on energy regenerative suspension is mainly focused on how to improve the efficiency of energy regenerative, while ignoring the original design of the suspension and lacking the coordination analysis of the suspension system damping performance and energy regenerative performance [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Modeling and Coordinate Optimization of Semi-Active Energy Regenerative Suspension with Electro-Hydraulic Actuator

Kou¹,

Du²,

Wang³

et al. 2017

Preprint

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In order to coordinate the damping performance and energy regenerative performance of energy regenerative suspension, this paper proposes a structure of vehicle semi-active energy regenerative suspension with electro-hydraulic actuator (EHA). In light of the proposed concept, a specific energy regenerative scheme is designed and the mechanical properties test is carried out. Based on the test results, the parameter identification for the system model is conducted using recursive least squares algorithm. On the basis of system principle, the nonlinear model of the semi-active energy regenerative suspension with EHA is built. Meanwhile, LQG control strategy of the system is designed. And then the influence of the main parameters of EHA on the damping performance and energy regenerative performance of suspension is analyzed. Finally, the main parameters of EHA actuator are optimized via genetic algorithm. The test results show that when sinusoidal is input at the frequency of 2Hz and the amplitude of 30mm, the spring mass acceleration RMS value of optimized EHA semi-active energy regenerative suspension is reduced by 22.23% and energy regenerative power RMS value is increased by 40.51%, which means while meeting the requirements of certain vehicle ride comfort and driving safety, energy regenerative performance is improved significantly.

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Energy Requirements of a Passive and an Electromechanical Active Suspension System

Cited by 17 publications

References 9 publications

Editors’ perspectives: road vehicle suspension design, dynamics, and control

Editors’ perspectives: road vehicle suspension design, dynamics, and control

Nonlinear Modeling and Coordinate Optimization of a Semi-Active Energy Regenerative Suspension with an Electro-Hydraulic Actuator

Nonlinear Modeling and Coordinate Optimization of Semi-Active Energy Regenerative Suspension with Electro-Hydraulic Actuator

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