Design Parameters of Driver Seat in an Automobile

Kale, Hanumant Narayan; Dhamejani, C. L.

doi:10.15623/ijret.2015.0406076

“…Normally aircraft seats are designed to be static using data from anthropological measurements [13]. These measurements cannot account for everyone and the efforts in using anthropometry data for the design of static seats to accommodate most people appear to have been ineffective [14]. This tells us that to keep passengers free from discomfort, a seat should be designed to be dynamic so that it can ensure pressure increase is minimal, that there is adequate back support for the passenger and that adapts to various postures.…”

Section: Current State For Seat Designmentioning

confidence: 99%

“…These four values will define the two bounds denoted by d1 and d2 given by Equation 3-14 and Equation 3-15 respectively. d1 = min(s1min, s2min) (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14) d2 = max(s1max, s2max) (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15) The zone between d1 and d2 is known as the Zone of Comfort. When both s1 and s2 are in between d1 and d2, it can be assumed that the passenger's thoracic and lumbar are supported by the backrest appropriately.…”

Section: Seat Following Control Systemmentioning

confidence: 99%

Contact Pressure Based Passenger Following Seat Motion Control

Desai

2024

Preprint

0

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The purpose of this thesis is to develop a seat control system that can provide constant support to the seated passenger's back. While providing support, it is important to ensure that the pressure exerted on the passenger's back is not excessive. In addition, as the backrest reclines, the static seat-pan would cause the passenger to slide, leading to uncomfortable sitting posture. To address these issues, three subsystems have been developed in this thesis research including: i) following control system, ii) pressure control system and iii) synchro-tilt control system. The following control system controls the backrest to follow the movement of the passenger. The pressure control system senses and controls the contact pressure between passenger's back and seat cushion. The synchro-tilt control system synchronizes the rotation of seat-pan with the reclination of the seat backrest to avoid passenger's sliding. Then the three subsystems are integrated into a combined control system. Two cases are studied. The first one is for passenger to lean forward. In this case, when the passenger leans forward, the backrest will rotate forward to follow the passenger's motion under the following control. When the passenger stops motion, the control system switches to the pressure control to provide comfortable support. In the course of seat motion, the synchro-tilt control system is always on to rotate the seat-pan.

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“…However, the most important element is the seat frame, generally made out of HSLA tubes (high strength low alloy steel), on which the rest of the systems are mounted [8].…”

Section: Car Seat Componentsmentioning

confidence: 99%

“…Its main purpose is to offer support for the driver's head and to restrict the eventuality of a sudden backwards movement, so that cervical vertebrae are protected. The headrest can be removable, integrated, separated from the seat or even proactive [8].…”

Section: Car Seat Componentsmentioning

confidence: 99%

Development of the Car Seat through a Wider Range of Active Elements Implementation

Barbu

¹

,

Gheorghe

²

2021

AEF

2

0

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Car seats represent a constructive - functional system including a variety of elements, assembled on a specific frame, among those the main components are the seat pan, the seat backrest, and the seat headrest. In order to improve the comfort of the driver and passengers, as well vehicle general safety, the car seats are under of intensive research and implementation of advanced developments.Thus, through of variety of sensors integrated into the seat, some important parameters are analysed for keeping the drivers alert and comfortable while driving semi-autonomous or autonomous cars. For adjustment of the seat linear and angular positions, a special system has been implemented, comprising electric, electronic, and pneumatic elements. Also, seat micro-adjustments are possible through the action of specific actuators. The car seat design and manufacture take into consideration a diverse array of data, based on a large range of parameters to face the diversity of drivers requirements. The present paper is advancing a conceptual development of car complex seat, integrating a number of active elements, with multiple possible adjustments. The new seat model is designed to satisfy a larger diversity of people both in terms of comfort and safety.

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“…It is shown in [10] and [14] that static seat design cannot accommodate for most passengers and that moving the backrest to support the passenger is a desirable quality in a seat. For this, a following control system is needed to ensure that the distance between the passenger's back and the backrest always remains within a specific range.…”

Section: Introductionmentioning

confidence: 99%

Contact Pressure Based Passenger Following Seat Motion Control

Desai

2024

Preprint

0

View full text Add to dashboard Cite

The purpose of this thesis is to develop a seat control system that can provide constant support to the seated passenger's back. While providing support, it is important to ensure that the pressure exerted on the passenger's back is not excessive. In addition, as the backrest reclines, the static seat-pan would cause the passenger to slide, leading to uncomfortable sitting posture. To address these issues, three subsystems have been developed in this thesis research including: i) following control system, ii) pressure control system and iii) synchro-tilt control system. The following control system controls the backrest to follow the movement of the passenger. The pressure control system senses and controls the contact pressure between passenger's back and seat cushion. The synchro-tilt control system synchronizes the rotation of seat-pan with the reclination of the seat backrest to avoid passenger's sliding. Then the three subsystems are integrated into a combined control system. Two cases are studied. The first one is for passenger to lean forward. In this case, when the passenger leans forward, the backrest will rotate forward to follow the passenger's motion under the following control. When the passenger stops motion, the control system switches to the pressure control to provide comfortable support. In the course of seat motion, the synchro-tilt control system is always on to rotate the seat-pan.

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Design Parameters of Driver Seat in an Automobile

Abstract: Abstract

Cited by 10 publications

References 1 publication

Contact Pressure Based Passenger Following Seat Motion Control

Contact Pressure Based Passenger Following Seat Motion Control

Development of the Car Seat through a Wider Range of Active Elements Implementation

Contact Pressure Based Passenger Following Seat Motion Control

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