Study of comfort performance of novel car seat design for long drive

Iftekhar, Hassan; Khan, Raja Muhammad Waseem Ullah; Asghar, Muhammad Ayub; Qadeer, Abdul; Umair, Muhammad; Nawab, Yasir; Hamdani, Syed Talha Ali

doi:10.1177/0954407019852279

Cited by 12 publications

(5 citation statements)

References 10 publications

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“…Furthermore, many of the automotive postural studies were carried out in static-laboratory conditions for unbiased subjective evaluation. 21,29,34 The limits of adjustability in the test-rig for handgrip, footrest, and seat were decided based on a previous study and Japanese standard. 22,35 Figure 2 explains the specific dimensions (like width, length, etc.)…”

Section: Subjects and Experimental Setupmentioning

confidence: 99%

Exploring the association of riders’ physical attributes with comfortable riding posture and optimal riding position

Muthiah

Singh

Karmakar

2021

Proceedings of the Institution of Mechanical Engineers, Part D:

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In recent years, there has been a keen interest in the design improvisation of motorcycles. However, the theoretical model of association between motorcycle design attributes (like frame size/riding position) and rider’s physical attributes (like anthropometry, range of motion (ROM), and comfort joint angles) are not well established. This study aims to estimate the relationship between rider’s physical attributes and motorcycle design attributes. During this experimental study, the data was collected from 120 motorcyclists (aged between 19 and 44 years) belonging to 20 major states of India. A test-rig was fabricated to obtain the perceived comfort posture and position data using image processing technique. The anthropometry and ROM were manually measured and verified by reliability testing. The principal component analysis (PCA) and multiple linear regression were used to reduce the set of variables and estimate the relationship between 10 comfortable riding position and joint angles (as dependent variables), and the reduced set of 29 anthropometry and 20 ROM measurements (as the independent variables). These results indicate that the comfort joint angles and riding position were significantly associated with the anthropometrics and ROM of the riders. Highly significant regression models were formulated to examine the relationship between the comfort joint angles/riding position and the anthropometrics and ROM of the riders. The findings may support the motorcycle designers to design a comfortable motorcycle complying with Indian anthropometry and ROM.

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Section: Subjects and Experimental Setupmentioning

confidence: 99%

Exploring the association of riders’ physical attributes with comfortable riding posture and optimal riding position

Muthiah

Singh

Karmakar

2021

Proceedings of the Institution of Mechanical Engineers, Part D:

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“…12,13 Some researchers are working on reducing these vibrations to effectively increase rider comfort. [14][15][16][17] A vehicle's comfort is influenced by many factors such as the seat design, 18 driving posture 19 and environmental factors, 20 road condition, and suspension system to name a few. In a two-wheeler, the rider's comfort plays a very important role, as the rider has continuous exposure to these influencing factors.…”

Section: Introductionmentioning

confidence: 99%

Whole body vibration and rider comfort determination of an electric two-wheeler test rig

Krishna,

Hegde,

G T

et al. 2023

F1000Res

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Background: Two-wheeled vehicles are the major mode of transportation in India. Such vehicles are exposed to excessive vibration on the road when compared to four-wheeled vehicles. However, the research on the reduction of whole body vibration in the case of two-wheelers is not explored in detail. The present study predicts rider comfort in the case of an electric two-wheeler as per ISO 2631-1. Methods: An electric two-wheeler test rig is used in the study. The values of acceleration from the test rig in running conditions are obtained by using NI LabVIEW 2016. The drive cycle of the electric vehicle (EV) test rig is controlled by Sync sols’ EV lab software. Obtaining the root mean square (RMS) acceleration from running the test setup, it is compared with the ISO 2631 standard to obtain the rider comfort. Results: Loading area, traction motor, base mount, and suspension were found to be the strategic points of vibration. RMS acceleration of 0.2 g to 3.29 g obtained at these points are prone to cause discomfort for the rider. Vehicle speed, road profile, and duration of exposure were found to be important parameters affecting the rider’s comfort. A maximum of 3.28 g amplitude was observed at the loading area at no load condition. The loading area, which corresponds to a rider’s seat in actual vehicle, is important and reduction of these vibrations make the ride comfortable for the rider. Suspension and base mount of the test rig are found to be uncomfortable observing the RMS acceleration. Conclusions: A suitable damping technique design is very much essential in reducing these vibrations and improve the rider comfort, as many more non-deterministic vibrations are prone to cause dis-comfort in case of actual on road riding conditions.

show abstract

Section: Introductionmentioning

confidence: 99%

Whole body vibration and rider comfort determination of an electric two-wheeler test rig

et al. 2023

View full text Add to dashboard Cite

Background: Two-wheeled vehicles are the major mode of transportation in India. Such vehicles are exposed to excessive vibration on the road when compared to four-wheeled vehicles. However, the research on the reduction of whole body vibration in the case of two-wheelers is not explored in detail. The present study predicts rider comfort in the case of an electric two-wheeler as per ISO 2631-1. Methods: An electric two-wheeler test rig is used in the study. The values of acceleration from the test rig in running conditions are obtained by using NI LabVIEW 2016. The drive cycle of the electric vehicle (EV) test rig is controlled by Sync sols’ EV lab software. Obtaining the root mean square (RMS) acceleration from running the test setup, it is compared with the ISO 2631 standard to obtain the rider comfort. Results: Loading area, traction motor, base mount, and suspension were found to be the strategic points of vibration. RMS acceleration of 0.2 g to 3.29 g obtained at these points are prone to cause discomfort for the rider. Vehicle speed, road profile, and duration of exposure were found to be important parameters affecting the rider’s comfort. About 19 % increase in the vibration amplitude is observed at the loading area when loads are removed. The loading area as corresponds to a rider’s seat in actual vehicle, it is important to reduce these vibrations to make the ride comfortable for the rider. Conclusions: A suitable damping technique design is very much essential in reducing these vibrations and improve the rider comfort, as many more non-deterministic vibrations are prone to cause dis-comfort in case of actual on road riding conditions.

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Study of comfort performance of novel car seat design for long drive

Cited by 12 publications

References 10 publications

Exploring the association of riders’ physical attributes with comfortable riding posture and optimal riding position

Exploring the association of riders’ physical attributes with comfortable riding posture and optimal riding position

Whole body vibration and rider comfort determination of an electric two-wheeler test rig

Whole body vibration and rider comfort determination of an electric two-wheeler test rig

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