Rollover Crash Sensing and Safety Overview

Viano, David C.; Parenteau, Chantal S.

doi:10.4271/2004-01-0342

Cited by 41 publications

(9 citation statements)

References 101 publications

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“…Furthermore almost all these AIS 3+ occupant injuries occurred to the front seat driver and passenger as a function of residual crush measured primarily at the A-pillar where the structure is weakest. Figure 8 shows the number of AIS injuries per body part taken from the NASS database and weighted by Viano et al [11]. Ramp rollovers can be simulated using a ramp rollover test devise.…”

Section: Methods Of Rollover Testing Reviewedmentioning

confidence: 99%

A Study of Rollover Occupant Injury Mitigation Using Dynamic Testing To Evaluate Alternative Protection Systems

Bozzini¹,

Friedman²,

Jimenez³

2013

SPE Latin-American and Caribbean Health, Safety, Environment and Social Responsibility Conference

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Since the onset of automotive safety awareness over 60 years ago the only rollover protection solution to be widely acknowledged and used in the E & P Industry has been the traditional internal roll cage. These traditional roll cages have become out-of-date and in recent testing are shown to be ineffective at the A-Pillar and windshield header.An all-encompassing study of rollover accidents has shown that this old technology is not the best way to mitigate injury. Understanding "Real World" rollover crashes and how injuries occur is instrumental in pinpointing the key areas of the vehicle's roof structure that require improvement. Our study included over 500 "Real World" rollover crash investigations and over 300 rollover crash tests performed with innovative dynamic testing using the Jordan Rollover System (JRS).Over the past decade automobile manufacturers have improved roof strength and added computer controlled driver assistance measures to avoid crashes. Still, the need exists for a majority of the common SUV's, Ute's, Vans, and buses to use an aftermarket solution. This study illuminates the deficiencies in internal and other ROPS enabling HSE Managers to make more informed decisions when choosing a system. The goal of ROPS today should be to protect occupants without interfering with OEM safety systems.Our investigation shows that rollovers producing serious to fatal injuries are characterized by a vehicle crash that includes rolling with forward pitch. In this circumstance, injury occurs when; vehicles roof strength is low, the geometry of the vehicle is poor including a large major radius, the structure of the roof is open section and/or the windshield header is weak. These crash characteristics show the importance of reinforcement at the A-Pillar and forward roof header. Traditional roll cages do not protect this area of the vehicle as shown in the new testing included in this paper.The E & P Industry is spending millions of dollars annually on occupant protection systems that are not offering the best protection for their workforce. New technologies in current vehicles and research advances in the design and approach to protection systems can reduce overall costs without sacrificing protection.

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Section: Methods Of Rollover Testing Reviewedmentioning

confidence: 99%

A Study of Rollover Occupant Injury Mitigation Using Dynamic Testing To Evaluate Alternative Protection Systems

Bozzini¹,

Friedman²,

Jimenez³

2013

SPE Latin-American and Caribbean Health, Safety, Environment and Social Responsibility Conference

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“…After rollovers, the vehicle may come to rest either on the side or upside down, on the roof or upright on all four wheels. During a rollover, the ejection of occupants causes most injuries and fatalities as most people killed are those not wearing safety belts to hold them in place [57]. Rollover airbags are side-impact airbags, which protect the occupants from ejection and injury during a rollover crash.…”

Section: Side-impact Airbagsmentioning

confidence: 99%

Airbags

et al. 2013

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In recent years, safety systems such as seat belts and airbags have been one of the fastgrowing sectors within the automotive industry. Seat belts and airbags have made driving substantially safer since their introduction. Airbags are safety systems used to cushion the driver or passenger during a collision and reduce bodily injuries. The technology involved in the manufacturing and working of airbags is complex. Since the early stages of development, airbag technology has been undergoing continual evolution in terms of design, materials and performance. Airbags are typically made from woven fabric, which may be coated or uncoated but must be impermeable to gases and flame resistant. In terms of their operation, modern airbags are smart restraint systems, which can tailor the deployment of the airbag according to the crash severity, body size of the occupant and proximity of the occupant to the airbag system prior to deployment. The future of airbags is extremely promising because there are many diverse applications ranging from motorcycle helmets to aircraft seating. In this article, an outline is given of the historical development of airbags and their value in saving lives is illustrated by supporting statistical data. The essential parameters required for airbag yarn and fabric components are discussed in detail. In addition, the processes involved in the manufacture, assembly and testing of airbag systems are explained. The mechanisms and chemical reactions involved in the deployment of different types of airbags are also discussed, and recent developments in airbag design and their possible future applications are reported.

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“…1 Therefore, it is necessary to improve their anti-rollover ability to reduce the incidence of rollover accidents. 2 In the 1970s, the anti-lock braking system (ABS) was developed to increase the stability of the vehicle during braking, which can shorten the braking distance for improved safety. 3 Later, electronic braking system (EBS) was created to effectively reduce the reaction time of the air brake system and significantly shorten the braking distance.…”

Section: Introductionmentioning

confidence: 99%

Using gyro stabilizer for active anti-rollover control of articulated wheeled loader vehicles

Zhang

Liu

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part I:

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Articulated wheeled loader vehicles have frequent rollover accidents as they operate in the complex outdoor environments. This article proposes an active anti-rollover control method based on a set of single-frame control moment gyro stabilizer installed on the rear body of the vehicle. The rollover dynamic model is first established for articulated wheeled loader vehicle with gyro stabilizer. The proposed control strategy is then applied in simulation to verify the rollover control effect on the vehicle under steady-state circumferential conditions. Finally, a home-built articulated wheel loader vehicle with gyro stabilizer is used to further verify the proposed control strategy. The results show that the vehicle can quickly return to the stable driving state and effectively avoid the vehicle rollover when a suitable anti-roll control moment can be provided by the gyro stabilizer. As a result, the articulated wheeled loader vehicle is able to operate safely in a complex outdoor environment.

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Rollover Crash Sensing and Safety Overview

Cited by 41 publications

References 101 publications

A Study of Rollover Occupant Injury Mitigation Using Dynamic Testing To Evaluate Alternative Protection Systems

A Study of Rollover Occupant Injury Mitigation Using Dynamic Testing To Evaluate Alternative Protection Systems

Airbags

Using gyro stabilizer for active anti-rollover control of articulated wheeled loader vehicles

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