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Showing 1 to 13 of 13 for “"Vehicle Rollover"”.
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Soft Surface Roll Mechanics Parameters for Light Vehicle Rollover Accident Reconstruction
Light vehicle rollover accidents on soft surfaces can be modeled assuming constant drag with linear motion equations and other engineering principles. The concept of using segment average results to evaluate roll mechanics parameters throughout a roll sequence, and specifically, segment duration to …
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Characterisation and investigation of serious thoracic injuries in passenger vehicle rollover crashes
Passenger vehicle rollover crashes involving a single vehicle occur infrequently; however, when they do the vehicle occupants in these crashes are more likely to sustain serious and fatal injuries compared to other crash modes. The thorax is frequently seriously injured in rollover crashes. Ongoing …
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Modeling, analysis, and measurement of passenger vehicle stability
Vehicle rollover represents a significant percentage of single-vehicle accidents and accounts for over 9,000 fatalities and over 200,000 non-fatal injuries each year. Previous automotive research has studied ways for detecting and mitigating rollover on flat ground at high speed, and robotics …
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Adaptive Rollover Control Algorithm Based on an Off-Road Tire Model
Due to a recent number of undesired rollovers in the field for the studied vehicle, rollover mitigation strategies have been investigated and developed. This research begins with the study of the tire, as it is the single component on the vehicle responsible for generating all of the non-inertial …
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Vehicle Dynamics Control for Rollover Prevention
Vehicle rollover accidents are a particularly dangerous form of road accident. Existing vehicle dynamics controllers primarily deal with yaw stability, and are of limited use for dealing with problems of roll instability. This thesis deals with the development of a new type of vehicle dynamics …
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Residual Crashes and Injured Occupants with Lane Departure Prevention Systems
… are overrepresented among fatalities: single vehicle road departure crashes, control loss crashes, cross-centerline head-on crashes, and pedestrian/cyclist crashes [2]. Interestingly, three of these crash scenarios require the subject vehicle to depart from the initial lane of travel. Lane …
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Cost Effective Rollover Mitigation Strategy
A cost effective method of rollover mitigation in vehicles is presented. The method was designed so that some of the system states were measured by sensors that are already available on most vehicles and so that other states could be measured with relatively low cost sensors. Also, the control …
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Experimental Evaluation and Adams Simulation of the Kinetic Suspension System
… first stage in the process involved full-scale vehicle rollover testing of a standard and Kinetic equipped Honda CR-V using the NHTSA roll rate feedback fishhook maneuver. During the testing, the fishhook failure speeds for each of the two vehicles were found, and data was taken for each of the …
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Limits of Permissible Damage in Strong-Post W-Beam Guardrail
… modes were found to pose significant risks to vehicle occupants and should be repaired as soon as possible. In order of priority of repair, these modes are missing posts, rail and post deflection over 6â , and rail flattening over 50%. Damage modes of less concern were rail and post deflections …
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Topics in Automotive Rollover Prevention: Robust and Adaptive Switching Strategies for Estimation and Control
… for estimation and control of automotive vehicles based on sound theoretical principles. Of particular importance is the problem rollover prevention, which is an important problem plaguing vehicles with a high center of gravity (CG). Vehicle rollover is, statistically, the most dangerous …
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Design of a Portable Tire Test Rig and Vehicle Roll-Over Stability Control
Vehicle modeling and simulation have fast become the easiest and cheapest method for vehicle testing. No longer do multiple, intensive, physical tests need be performed to analyze the performance parameters that one wishes to validate. One component of the vehicle simulation that is crucial to the …
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Hardware in the Loop Simulation of a Heavy Truck Braking System and Vehicle Control System Design
… TruckSim. In order to accomplish this, over 100 vehicle parameters were acquired from a real production tractor and entered into TruckSim. Similarly, parameters from a production trailer were acquired and entered as well. By entering these parameters into TruckSim, the dynamic behavior of the …
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Estimation Of Hybrid Models For Real-time Crash Risk Assessment On Freeways
… observed that about 60% of the historical single vehicle crashes (other than rollovers) could also be identified using these models. The majority of the identified single vehicle crashes, according to the crash reports, were caused due to evasive actions by the drivers in order to avoid another …