Modeling and control of hybrid MR seat damper and whole body vibration evaluation for bus drivers

Olivier, M.; Sohn, Jung Woo

doi:10.1177/14613484211063095

Cited by 8 publications

(6 citation statements)

References 16 publications

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“…However, such EVs face some issues when in use on the road [15]. Major problems associated with the EVs while riding are short-range [18], higher weight [19], and bulkiness of the energy storage systems such as battery packs hence lowering the utility space [20], whole-body vibrations [21,22], torque ripple [23], and torsion between traction motor and driveline [24]. Any successful attempt made in overcoming or minimizing the aforesaid deficiencies would result in improving the efficiency and performance of futuristic EVs.…”

Section: Ice Motorcyclementioning

confidence: 99%

A Review on Vibrations in Electric and Hybrid Electric Vehicles

Krishna

Mahesha

Hegde

et al. 2023

J. Inst. Eng. India Ser. C

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Electric vehicles (EVs) are promising solutions to the problems faced by combustion engine-propelled automobiles. The futuristic transportation system would be majorly catered by battery EVs, hybrid EVs, and fuel cell EVs with a different combination of energy sources that could successfully meet the requirements of different categories of vehicle propulsion systems. However, to execute such vehicle systems with a high level of safety and comfort for the transportation of people and products, a few difficulties must be resolved. EVs of today face problems such as noise-vibration-harshness, energy storage difficulties, torque fluctuation/ripple in the power train, inadequate range, and some others. The present review paper comprehends major noise and vibration issues existing in EVs and attempts made by the researchers to find solutions to such problems. The major problem faced by the vehicle as well as by the passengers is vibration and discomfort. These vibrations if continued for a longer period might cause severe damages to the vehicle structure as well as to the passenger’s body. These issues must be thoroughly addressed by researchers to increase ride comfort, which is a crucial requirement of the hour as well.

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Section: Ice Motorcyclementioning

confidence: 99%

A Review on Vibrations in Electric and Hybrid Electric Vehicles

Krishna

Mahesha

Hegde

et al. 2023

J. Inst. Eng. India Ser. C

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show abstract

“…In the random excitation test, the root mean square value of the seat acceleration is effectively reduced and the ride comfort is improved. Munyaneza Olivier et al [11] used the Skyhook controller to control the current supply of the hybrid magnetorheological damper and enhance the damping force under low current power supply. The skyhook controller improves seat comfort compared to uncontrolled conditions.…”

Section: Of 20mentioning

confidence: 99%

Research on Tractor Active Seat Suspension Based on Model Predictive Control

Zhao¹,

Qu²,

Liu³

et al. 2023

Preprint

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In order to reduce the influence of ground vibration generated by tractor during driving and operation on driving stability and driver ride comfort, this paper proposes a control method of tractor active seat suspension based on model predictive control. By establishing a 3-degree of freedom tractor active seat suspension model and a ground excitation input model, a new model predictive controller for the active seat suspension system is designed. The vertical acceleration of the seat center of mass, the seat suspension stroke and the tire dynamic displacement are optimized by limiting the dynamic deflection of the seat suspension and the active force output of the actuator. The control model of MPC tractor active seat suspension system is built and its performance is simulated and verified. The results show that compared with the passive seat suspension and the PID seat suspension, the tractor active seat suspension based on model predictive control (MPC) has better damping characteristics and improves ride comfort.

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“…A simple structure-model of seat isolator designed by the horizontal-parallel isolator (HPI) has been studied for vehicles moving on rigid road surfaces. 3,5,6 The HPI’s design parameters were then optimized while the damping values in the HPI were also controlled for enhancing the isolation performance of the seat’s HPI. Study results showed that the vertical vibration, pitch vibration, and roll vibration of the seat were significantly improved in comparison with the use of the traditional isolator of the seat.…”

Section: Introductionmentioning

confidence: 99%

Designing and analyzing the efficiency of seat’s three vibration isolator modes in improving the driver’s comfort

Wang,

Nguyen,

Zhang

et al. 2024

Noise & Vibration Worldwide

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This study proposes three vibration isolator modes of the seat designed by horizontal-parallel isolator (HPI), vertical-parallel isolator (VPI), and negative-stiffness isolator (NSI) for improving the vehicle seat’s comfort. The influence of the dynamic parameters of three vibration isolator models is then analyzed based on their three dynamic models. Their dynamic parameters have been then optimised for comparing the isolation performance of HPI, VPI, and NSI based on root-mean-square (RMS) accelerations in the vertical, pitch, and roll directions of the driver’s seat. Research shows that driver comfort has been insignificantly affected by dimensions whereas driver comfort has been greatly affected by dynamic parameters of three vibration isolator modes. Based on the optimized parameters of HPI, VPI, and NSI, the vertical comfort of the driver with the NSI has been improved better than that of both the HPI and VPI, conversely, the pitch comfort and roll comfort of the driver with the VPI has been improved better than that of both the HPI and NSI. In order to improve the comfort of the driver in three directions, the VPI should be combined with the NSI to design the seat isolator of vehicles.

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Modeling and control of hybrid MR seat damper and whole body vibration evaluation for bus drivers

Cited by 8 publications

References 16 publications

A Review on Vibrations in Electric and Hybrid Electric Vehicles

A Review on Vibrations in Electric and Hybrid Electric Vehicles

Research on Tractor Active Seat Suspension Based on Model Predictive Control

Designing and analyzing the efficiency of seat’s three vibration isolator modes in improving the driver’s comfort

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