Buck-boost converter for simultaneous semi-active vibration control and energy harvesting for electromagnetic regenerative shock absorber

Zhang, Chongxiao; Kim, Junyoung; Yu, Liangyao; Zuo, Lei

doi:10.1117/12.2045143

Cited by 10 publications

(8 citation statements)

References 16 publications

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“…In this way, the current flowing through the generator can be controlled, which means that the damper force can be controlled. 2,41,42…”

Section: Resultsmentioning

confidence: 99%

“…In this way, the current flowing through the generator can be controlled, which means that the damper force can be controlled. 2,41,42 Step responses A step of 100 mm height ( Figure 11) was taken as the road excitations for the integrated quarter-car model to evaluate its step response with optimized m s . In order to take into account the case when tire-ground contact is lost, the system modeled in this paper is no longer linear.…”

Section: Effects Of the Design Parametersmentioning

confidence: 99%

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Influences of the electromagnetic regenerative dampers on the vehicle suspension performance

Zuo

2016

Proceedings of the Institution of Mechanical Engineers, Part D:

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Conventional vehicle suspensions suppress vehicle vibrations by dissipating the vibration energy into unrecyclable heat with hydraulic dampers. This can be a considerable amount of energy which is worthy of attention for energy recovery. Electromagnetic regenerative dampers, or shock absorbers, are proposed to harvest this dissipated energy and to improve the fuel efficiency. The suspension dynamics with these regenerative dampers can be significantly different from the suspension dynamics with conventional dampers. First, different from conventional hydraulic dampers, the electromagnetic regenerative dampers have a significantly higher inertia, which is introduced by the electromagnetic generator. This has an important impact on the suspension dynamics. Second, the damping coefficient of electromagnetic dampers is related to the electric load connected to the output of the generator and can be controllable. Although various concepts have been proposed, the influences of these types of regenerative damper on the vehicle dynamics have not yet been thoroughly investigated. This paper models two types of rotational electromagnetic regenerative damper, with and without a mechanical motion rectifier, and analyzes their influences on the vehicle suspension performance in comparison with those of the conventional damper. The modeling in this paper also considers the case when the tires lose contact with the ground. Simulations were carried out with step road profile excitations and road profile excitations defined by the International Standardization Organization in order to evaluate the influences of the equivalent inertia mass and the equivalent damping coefficient. The results showed that, with an optimized equivalent inertia mass, both types of electromagnetic damper can achieve better ride comfort performances than a constant damper does. In addition, the mechanical motion rectifier mechanism can significantly improve the ride comfort and the road-handling performance of electromagnetic regenerative dampers by reducing the negative effect of the amplified generator inertia. In addition, the energy-harvesting potential of the presented dampers under road profile excitations defined by the International Standardization Organization was evaluated.

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“…In this way, the current flowing through the generator can be controlled, which means that the damper force can be controlled. 2,41,42…”

Section: Resultsmentioning

confidence: 99%

Section: Effects Of the Design Parametersmentioning

confidence: 99%

Influences of the electromagnetic regenerative dampers on the vehicle suspension performance

Zuo

2016

Proceedings of the Institution of Mechanical Engineers, Part D:

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“…The buck-boost DC-DC converter can be a good solution to achieve r damping control, due to that its average input resistance can be controlled by adjusting the duty cycle when working in discontinuous current mode. [28,29] For rotational electromagnetic shock absorbers, the rotor inertia of the generator makes it more difficult to control the damping force. To achieve the desired shock absorber force, both the acceleration and velocity of the suspension need to be taken into consideration.…”

Section: Suspension Performance With Controlled Load Resistancementioning

confidence: 99%

Electromagnetic regenerative suspension system for ground vehicles

Zuo

Lǚ

2014

2014 IEEE International Conference on Systems, Man, and Cybernetics (SMC)

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This paper considers an e regenerative suspension system (ERSS) that kinetic energy originated from vehicle vibra previously dissipated in traditional shock absorb be used as a controllable damper that can vehicle's ride and handling performance. electromagnetic regenerative shock absorbers ( a linear or a rotational electromagnetic genera the kinetic energy from suspension vibration which can be used to reduce the load on the alte improve fuel efficiency. A complete ERSS is that includes the regenerative shock absorb electronics for power regulation and suspensio an electronic control unit (ECU). Different s designs are proposed and compared for simpli energy density, and controlled suspension perfo simulation and experiment results are presented

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“…General energy harvesting devices taken into consideration are mechanical motion rectifiers [16][17][18][19], piezoelectric shock absorbers [20,21] and electromagnetic regenerative shock absorbers [15,[22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Voltage enhancing using multi-magnetic arrangement for low frequency vibrational energy harvesting

Bhosale¹,

Anderson²,

Deshmukh³

2018

J. vibroeng.

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Power extraction from ambient vibrations is currently needed or the technology, and the amount of energy in ambient vibration is low and is sufficient to operate small devices. In the present article a methodology is proposed to extract the maximum amount of power from these sources. This paper includes the method to increase the output voltage in a vibration energy harvesting device. The vibration amplitude depends on stiffness, mass damping, vibrating source amplitude and frequency. Various methods are developed to increase the voltage output from these devices. An induced voltage can be further increased by changing the initial relative position between the magnet and coil. Magnetic flux density is found to be maximum in the vicinity of the coil. When the top magnet side matches with the coil centre, then the induced voltage is found to be maximum as compared to other relative positions between the coil and magnet. The multi-magnet arrangement has been used to enhance the total output of the device by keeping appropriate relative position of magnet with respect to the coil. A theoretical and experiment investigation is conducted on these methods, and a theoretical simulation is carried out using a FEA tool, and the experimental results closely match with the theoretical results. Four magnet coils have been considered in this study which gives the maximum output of 1.937 V, 1.426 V, 2.01 V and 2.27 V at 14 Hz frequency. With the help of a multi-magnet arrangement, maximum 7.64 V and 11.44 mW is reached. It observed that the multi-magnet arrangement is the best and gives the maximum voltage output as compared to other methods.

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Buck-boost converter for simultaneous semi-active vibration control and energy harvesting for electromagnetic regenerative shock absorber

Cited by 10 publications

References 16 publications

Influences of the electromagnetic regenerative dampers on the vehicle suspension performance

Influences of the electromagnetic regenerative dampers on the vehicle suspension performance

Electromagnetic regenerative suspension system for ground vehicles

Voltage enhancing using multi-magnetic arrangement for low frequency vibrational energy harvesting

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