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 26 for “"Active safety systems"”.
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Coordinated control of active safety systems for multi-trailer articulated heavy vehicles
… heavy vehicles (MTAHVs), the model-based active safety systems, including the active trailer steering, trailer differential braking and the active roll control are developed. The active safety systems are integrated and coordinated for optimal overall performance. The coordinated control …
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Parallel design optimization of multi-trailer articulated heavy vehicles with active safety systems
… through the design optimization of MTAHVs with active safety systems. A parallel design optimization (PDO) method is developed and applied to the design of MTAHVs with integrated active safety systems, which involve active trailer steering (ATS) control, anti-roll (AR) control, differential …
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Determination of Sensors Characteristics of Curb and Development of Surrogate Curb for the Evaluation of Vehicle Active Safety Systems
… technologies have emerged, which have enhanced safety and reliability measures. The Automotive world is now trying to build capabilities for driverless or vehicle assisted driving. Building capabilities for driverless cars practically means first developing training methods, then training the …
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Design synthesis of car-trailer systems with active trailer differential braking strategies.
… the lateral stability of car trailer (CT) systems. Is a linear-model-based controller applicable to active safety systems for CT systems under emergency operating conditions, such as an evasive maneuver at high lateral accelerations? In order to address the problem, the following innovative …
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Design and analysis of active aerodynamic control systems for increasing the safety of high-speed road vehicles
The lateral stability and the safety of road vehicles is dependent on the vehicle design and operating conditions. Under operating conditions such as slippery roads, high lateral acceleration and tight cornering, the forces and torques due to the interactions between the tire and road may be …
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High-speed optics based depth mapping for automated active safety system
The usage of image processing in automotive active safety systems has increased dramatically in the recent decades. Main interest of the digital signal processing has been in the area of communications or networks, but with various advancements in the digital image processing, new type of …
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Safety Assurance for Automated Vehicles Beyond Collision Avoidance
… thousands of deaths and injuries. Autonomous safety systems have the potential to greatly reduce this tragic loss of life and improve safety, but such systems must meet existing requirements for automotive certification. Particularly, active safety systems must designed to comply with the …
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Increasing Computational Efficiency of Pre-Crash Simulations Using Detailed and Simplified Occupant Models
Active safety systems challenge the ability to evaluate occupant injury assessment through simulation as these technologies extend the window of interest in a collision from the typical 150-200 msec crash event to 1000 or more msec. Human body models (HBMs) provide researchers with information on …
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Development of active trailer steering systems for pickup truck-trailer combinations
… to remain a subject of concern in the design of safety systems. Vehicle-trailer combinations tend to exhibit low lateral stability and poor maneuverability, especially under high-speed maneuvers, which lead to unstable motion modes such as jackknifing, trailer sway and rollover. Active safety …
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Automotive electronics business
… industry, due to the trend to introduce active safety systems, concerns about protecting the environment, and advances in information technology, key automotive manufacturers are eager to acquire new enabling technologies which can provide solutions for these issues. As a result, the …
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Design optimization of active trailer differential braking systems for car-trailer combinations
The thesis studies active trailer differential braking (ATDB) systems to improve the lateral stability of car-trailer (CT) combinations. CT combinations exhibit unique unstable motion modes, including jack-knifing, trailer sway, and roll-over. To address this CT stability problem, two ATDB …
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Enhancement of lateral stability of car-trailer systems using model-reference adaptive control
Car-Trailer (CT) systems exhibit reduced maneuverability in curved-path negotiations and display low lateral stability under high-speed evasive maneuvers. Therefore, the objective of this thesis is to design a Lyapunov-Stability-based Model Reference Adaptive Controller (MRAC) for an active trailer …
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Lane departure avoidance system
… This thesis briefly reviews different types of active safety systems designed to reduce the number of accidents. Focusing on lane departure, a leading cause of crashes involving fatalities, we examine a lane-keeping system proposed by Minoiu Enache et al.They proposed a switched linear feedback …
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A LiDAR Based Semi-autonomous Collision Avoidance System and the Development of a Hardware-in-the-Loop Simulator to Aid in Algorithm Development and Human Studies
… human studies surrounding driver assistance and active safety systems in automobiles. This thesis is a continuation of work done by numerous Cal Poly undergraduate and graduate students.</p>
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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
… fatal crashes in the United States each year. Active safety systems have the potential to reduce crashes and injuries across all crash modes by partially or fully controlling the vehicle in the event that a crash is imminent. The objective of this thesis was to evaluate crash and injury …
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Design of active trailer steering systems for long combination vehicles using robust control techniques
… has escalated strong concerns regarding their safety. Therefore, it is imperative to develop safety systems with a focus on improving stability, and ensuring safety of LCVs. Active safety systems such as Active Trailer Steering (ATS), have been widely explored to overcome these stability …
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Fleetwide Models of Lane Departure Warning and Prevention Systems in the United States
… automakers have been developing lane departure active safety systems to alert drivers to impending departures. These lane departure warning (LDW) and lane departure prevention (LDP) systems have great potential to reduce the frequency and mitigate the severity of serious lane and road departure …
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The impact of passive safety systems on desirability of advanced light water reactors
… light water reactor designs with passive safety systems are more desirable than advanced reactor designs with active safety systems from the point of view of uncertainty in the performance of safety systems as well as the economic implications of the passive safety systems. Two advanced …
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Model Based Estimation of Road Friction for Use in Vehicle Control and Safety
… opens a new range of improvements to the active safety systems such as the Electronic Stability Control (ESC) and Anti-lock Braking Systems (ABS) in addition to providing computerized support to safety applications. The aim of the research is to take an engineering approach to the problem …
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Intelligent Tire Based Tire Force Characterization and its Application in Vehicle Stability and Performance
… play a very crucial role in defining both the safety and performance of the vehicle. The interaction between the tire and the road surface determines the vehicle's ability to accelerate, decelerate and steer. Having information about this interaction in real-time can be very valuable for the …
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