Design trade-offs for energy regeneration and control in vehicle suspensions

Pires, Lucas; Smith, Malcolm; Houghton, N; McMahon, R.A.

doi:10.1080/00207179.2013.830197

Cited by 28 publications

(13 citation statements)

References 11 publications

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“…Because inerter device is typically metallic-flywheel-based, it can be exploited as a conductor to incorporate electromagnetic damping easily, which in turn makes regenerative damping possible. In fact, a related study [19] has pointed out that a typical regenerative suspension device can be modeled as a parallel combination of inertance and dissipative (damping) components. On the other hand, existing available switchable dampers, which are based on magneto-or electro-rheological fluids, can only serve damping purpose.…”

Section: Transient Responsementioning

confidence: 99%

Ride improvement of vehicle suspensions with switchable inerter based on force cancellation strategy

Soong¹,

Ramli²,

Mahadi³

et al. 2017

J. vibroeng.

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Inerter is a recent advancement in vehicle suspension that have been shown to be capable of improving vehicle ride comfort, however its ride improvement is less encouraging in the parallel layout. This study investigated the possibility of further ride improvement brought by vehicle suspensions with a switchable parallel inerter instead. In this theoretical study, the inerter was assumed to be on-off switchable based on semi-active force cancellation strategy. A two-degree-of-freedom quarter vehicle model was used to evaluate several cases of suspension system, which included ordinary passive suspension as reference, a system with switchable inerter and a system with both switchable damper and inerter. The model was solved mathematically with random road profile and step profile as ground excitations. Results showed that the use of switchable inerter in parallel to spring and damper in the different test cases was capable of reducing vertical sprung mass acceleration by a healthy 12 %, which is far superior to a mere 2 % achieved by a passive parallel inerter, as well as comparable to that achieved by a switchable damper. When both sprung mass acceleration and dynamic tire load were considered, comparison made on the Pareto fronts indicated that the switchable capability of an inerter managed to further improve the Pareto optimal sets over those obtained for cases with passive inerter.

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Section: Transient Responsementioning

confidence: 99%

Ride improvement of vehicle suspensions with switchable inerter based on force cancellation strategy

Soong¹,

Ramli²,

Mahadi³

et al. 2017

J. vibroeng.

View full text Add to dashboard Cite

show abstract

“…Recently, a novel TMD with an inerter of variable inertance, has been introduced by Brzeski et al [27] and has been shown to be beneficial via theoretical and experimental studies [28,29]. Apart from pure mechanical absorbers, mechatronic designs, which enable the controller's immittance to be realised through a combination of mechanical and electrical networks, have also been proposed and shown to be beneficial [30,31,32].…”

Section: Introductionmentioning

confidence: 99%

Identification of beneficial mass-included inerter-based vibration suppression configurations

Yiyuan

Zhang

Jiang

et al. 2019

Journal of the Franklin Institute

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Vibration suppression capabilities of linear passive vibration absorbers, such as traditional tuned mass damper (TMD), and recently proposed inerter-based vibration absorbers, have been studied for multiple mechanical systems. In particular, significant performance advantages have been obtained with a specific device making use of both inerter and mass elements, namely the tuned mass damper inerter (TMDI). However, there are still countless mass-included inerter-based configurations that have not been studied, which can potentially provide more preferred dynamic properties. In this paper, an immittance-functionlayout (IFL) is introduced, which can cover a large range of topological connection possibilities with both mass and inerter elements. With the recently proposed structural immittance format, a systematic approach is established to identify the most beneficial IFL type mass-included inerter-based configurations with predetermined number of each element type. Vibration suppression performance with single-IFL type device and two parallel-connected IFLs (i.e. dual-IFL) type devices are investigated in this paper. Three optimal configurations are identified for mitigating the maximum inter-storey drift of an example 3-storey building model subjected to base excitation. With this 3-storey building model, results show that, for the optimum single-IFL configuration, the performance improvement is 7.3% compared with the optimum TMDI, and with identified beneficial dual-IFL configurations, up to 34.9% performance advantages are obtained. Furthermore, consistent performance gains are shown under real-life earthquake inputs and with a 10-storey building model using identified absorber configurations.

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“…The regenerative vehicle suspensions, which can harvest energy from the road vibration, are being studied recently [5][6][7][8][9]. Two kinds of motors or generators are applied, namely the rotary one and the linear one.…”

Section: Introductionmentioning

confidence: 99%

Vibration control of an energy regenerative seat suspension with variable external resistance

Ning

Sun

et al. 2018

Mechanical Systems and Signal Processing

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In this paper, an energy regenerative seat suspension with a variable external resistance is proposed and built, and a semi-active controller for its vibration control is also designed and validated. The energy regenerative seat suspension is built with a three-phase generator and a gear reducer, which are installed in the scissors structure centre of the seat suspension, and the vibration energy is directly harvested from the rotary movement of suspension's scissors structure. The electromagnetic torque of the semi-active seat suspension actuator is controlled by an external variable resistor. An integrated model including the seat suspension's kinematics and the generator is built and proven to match the test result very well. A simplified experimental phenomenon model is also built based on the test results for the controller design. A state feedback controller is proposed for the regenerative seat suspension's semi-active vibration control. The proposed regenerative seat suspension and its controller are validated with both simulations and experiments. A well-tuned passive seat suspension is applied to evaluate the regenerative seat's performance. Based on ISO 2631-1, the frequency-weighted root mean square (FW-RMS) acceleration of the proposed seat suspension has a 22.84% reduction when compared with the passive one, which indicates the improvement of ride comfort. At the same time, the generated RMS power is 1.21 W. The proposed regenerative seat suspension can greatly improve the driver's ride comfort and has the potential to be developed to a self-powered semi-active system.

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Design trade-offs for energy regeneration and control in vehicle suspensions

Cited by 28 publications

References 11 publications

Ride improvement of vehicle suspensions with switchable inerter based on force cancellation strategy

Ride improvement of vehicle suspensions with switchable inerter based on force cancellation strategy

Identification of beneficial mass-included inerter-based vibration suppression configurations

Vibration control of an energy regenerative seat suspension with variable external resistance

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