Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 21 for “"Emergency Braking"”.
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Emergency Braking in Compact Vehicle Platoons: A Cyber-Physical Design
… difficult to guarantee safety, especially, when braking in an emergency. The longitudinal and lateral control systems developed so far aim to achieve string stability in the cruise scenario, i.e., to prevent that small variations at the lead magnify towards the trail. Unfortunately, this has no …
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Emergency braking using two independent steering actuators while maintaining directional control
… two independent steering actuators to provide emergency braking capability in the event of a primary brake system failure. The work conducted consisted of three major areas. First, a vehicle model was developed for predicting vehicle response to various steering and braking inputs. The …
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Effectiveness of Automatic Emergency Braking for Protection of Pedestrians and Bicyclists in the U.S.
… assess the potential effectiveness of Automatic Emergency Braking (AEB) in avoiding and mitigating VRU crashes through modeling and simulation, and estimate the future benefits of AEB for VRU safety in the United States. Additionally, active safety features are most effective when behavior of …
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A petri net based model for AEB systems considering vehicle and pedestrian/cyclist in a certain area
… moving directions, and so on. There are several braking patterns described in this thesis, which provide the possibility to control the distance of an emergency braking. With different braking distance and steering angle during the emergency braking, choosing the final place of a vehicle becomes …
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An investigation into the occurrence of accelerator/brake pedal actuation errors during simulated driving
… foot from the accelerator to the brake during emergency braking (i.e. movement time), none have as yet specifically addressed the issue of pedal actuation errors. The primary purpose of the present study was to determine what types of errors (if any) occur, to document the frequency with which …
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An Investigation of Auditory Icons and Brake Response Times in a Commercial Truck-Cab Environment
… not only in industrial applications, but also as emergency braking warnings. The use of auditory icons in commercial truck cabs has the potential to increase the number of auditory displays that can be distinguished and understood by commercial vehicle operators, and this experiment sought to …
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Prospects for the Collision-Free Car: The Effectiveness of Five Competing Forward Collision Avoidance Systems
… e.V) published a test report comparing advanced emergency braking systems. The ADAC tested production vehicles of model year 2011 made by Audi, BMW, Infiniti, Volvo, and VW. The ADAC test results were used in conjunction with video evidence and owner's manual information to develop mathematical …
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Effectiveness of Intersection Advanced Driver Assistance Systems in Preventing Crashes and Injuries in Left Turn Across Path / Opposite Direction Crashes in the United States
… and two different intervention types (automated braking and driver warning). In addition, two sightline assumptions were modeled for each crash: one where the turning vehicle was visible long before the intersection, and one where the turning vehicle was only visible after entering the …
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Scenario-Based Methodology for Predicting the Safety Benefits of Emerging Advanced Rider Assistance Systems (ARAS)
… benefit assessment, using Motorcycle Autonomous Emergency Braking (MAEB) as a proving case. Central to this work is a novel scenario-based methodology—adapted from automated-driving research—that integrates national crash statistics, in-depth crash reconstructions, naturalistic riding behavior, …
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Driving performance in mild dementia
… Vehicle Branch (MVB) road test and a test of emergency braking distance indexed the intermediate level. Driving-related judgment was assessed by evaluating the accuracy of subjects' appraisals of their own driving skills, and by examining whether the demented subjects evidenced an increased …
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Advanced Braking Systems for Heavy Vehicles
… describes research into the use of advanced emergency braking hardware and wheel slip control algorithms on pneumatically braked heavy goods vehicles. Anti-lock braking systems (ABS) on commercial heavy vehicles use inefficient control approaches that work on cycles of exceeding the limits of …
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Methodology development and evaluation of automotive LiDAR performance in rain
… assistance, adaptive cruise control, and emergency braking rely on sensors to capture environmental data. However, sensor performance degrades in adverse weather conditions. For instance, light detection and ranging (LiDAR) sensors are affected when driving in rain due to soiling, which …
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Multi-criteria design analysis of sensor systems for railway level crossings
… The analysis results show that automating the emergency braking system can be an effective countermeasure against railway accidents caused by humans. Overall, the analysis tool developed in this work allows for analysis and simulations to be easily updated with new performance specifications of …
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Torque Actuated Rear Steering for Urban Electric Commercial Vehicles
… At high speed, improve roll-over stability and emergency braking and cornering performance while maintaining accurate path following. Chapter 1 reviews the current state of greenhouse gas emissions within the freight industry and methods for decarbonisation, predominantly the use of electric …
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Occupant Responses of Relaxed and Braced 5th Percentile Female and 50th Percentile Male Volunteers during Low-Speed Frontal and Frontal-Oblique Sled Tests
… of crash avoidance technologies like autonomous emergency braking necessitates understanding of occupant responses during low-speed frontal pre-crash braking and low-severity crash events. Active human body models (HBMs) have emerged as valuable tools to evaluate occupant safety during these …
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Brake-Actuated Steering of Heavy Goods Vehicles
… trailer steering technologies and modern braking systems for motion control are presented in Chapter 1. This is followed by an introduction to the dual-action flow concept for the brake-actuator valves in Chapter 2. It is shown that the use of switchable restrictions in the pneumatic brake …
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Safe and Efficient Communication Protocols for Platooning Control
… vehicles implicitly implement automated emergency braking, a fundamental application for freeway safety. The idea is to form optimized road trains of vehicles where the first drives the train, while the others autonomously follow at a close distance, without requiring the driver to steer, …
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Characterizing Bicyclists Behavior in Overtaking Scenarios Over Different Road Infrastructures
… safety systems like bicycle detecting automatic emergency braking. The purpose of this study was to characterize bicyclist behavior to enhance the crash avoidance potential of advanced driver assistance systems and improve safety for cyclists. An analysis on fatal crashes involving bicyclists was …
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Applications of Event Data Recorder Derived Crash Severity Metrics to Injury Prevention
… effectiveness of an advanced automatic emergency braking system, and 2) informing speed limit selection that supports the safe system approach. The findings in this dissertation indicate that both the FSM and additional crash severity metrics do a reasonable job predicting occupant …
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