نتایج جستجو برای: vehicle rollover
تعداد نتایج: 115119 فیلتر نتایج به سال:
In this work a full vehicle model of a rural transport vehicle (RTV) is developed in MADYMO. The steering, tier and suspension are modeled using standard modules available in the package. A speed controller was also incorporated to maintain a constant speed of the vehicle in the simulations. Validation of the model was done against experimental accelerations measured over a bump. The validated ...
BACKGROUND Rollover footwear is assumed to provide an enhanced surface over which the body can roll more easily. The aim of this study was to investigate the effects of rollover footwear on the rollover function of walking. METHODS Twenty subjects walked in three conditions: (i) a MBT shoe (Masai Barefoot Technology) characterized by a stiff sole rounded in the anterior-posterior direction; (...
INTRODUCTION Road traffic crashes (RTCs) are common in Qatar, and are now considered the third leading cause of mortality. In this study, the safety devices used by the Qatari public at the time of RTCs were assessed and the association between seatbelt use by vehicle occupants involved in RTCs and severe injury/death in the prehospital setting was determined. METHODS This study was a retrosp...
Abstract Autonomous vehicles require safe motion planning in uncertain environments, which are largely caused by surrounding vehicles. In this paper, a driving environment uncertainty-aware framework is proposed to lower the risk of position uncertainty with considering rollover. First, 4-degree freedom vehicle dynamics model, and rollover index introduced. Besides, vehicles' processed propagat...
− Evaluation of active safety control systems usually relies heavily on field testing and is timeconsuming and expensive. Advances in computer simulations make it possible to perform exhaustive design trials and evaluations before field testing, and promise to dramatically reduce development cost and cycle time. In this paper, a comprehensive simulation-based evaluation procedure is proposed, w...
Very little is known about drowning deaths that occur as the result of motor vehicle traffic accidents. The two research questions addressed in this paper are how frequently do drowning deaths as a result of motor vehicle traffic accidents occur and what are the circumstances surrounding these deaths. The choice of the word “accident” instead of “crash” in this paper is intentional to avoid con...
Plus-sizing in the tire industry is the growing practice of replacing a vehicle’s original equipment wheel size with a larger diameter wheel and replacing the tire with a lower aspect ratio tire of the same diameter. This practice is normally associated with aftermarket sales, and there is a growing trend for vehicle dealerships to fit these larger wheels/tires to new cars. This paper discusses...
This paper discusses the role of active anti-roll bar system in order to enhance roll stability cars, thereby preventing rollover phenomenon high speed emergency situations. First, an integrated full car model is proposed including longitudinal, lateral, vertical motions and electro-hydraulic actuator model. In this model, control signal being input current which supplied actuators create torqu...
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