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 6 of 6 for “"Rearward amplification"”.
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Dynamic Modeling and Lateral Stability Analysis of Long Combination Vehicles
… that increasing the trailer wheelbase reduces rearward amplification due to the damping effect of the longer wheelbase. A larger momentum ratio due to increased trailer gross weight increases rearward amplification. The detailed models of pneumatic disc and drum brakes in LCVs, including the …
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Design and validation of active trailer steering systems for articulated heavy vehicles using driver-hardware-in-the-loop real-time simulation
… maneuvers specified in ISO-14791 for acquiring rearward amplification, which is an important indicator for the high-speed lateral stability. Simulation results indicate that the closed-loop test is more applicable for DTAHVs with ATS systems. This thesis also proposes a new ATS controller using …
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Design and validation of high speed active trailer steering system for articulated heavy vehicle
… highway speed, ISO standards have proposed the rearward amplification (RA) measures to characterizing the performance. It has been reported that the RA curves obtained through three different methods proposed by ISO-14791 differ. This thesis studies three proposed methods in detail and analyzes …
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High-speed lateral stability analysis of articulated heavy vehicles using driver-in-the-loop real time simulation
… testing procedures are used to determine the Rearward Amplification (RA), which is a well-accepted performance measure for the lateral stability of MTAHVs. The open-loop testing maneuver includes the use of a single cycle sinewave steer input, while the closed-loop procedure prescribes a …
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Experimental Evaluation of Roll Stability Control System Effectiveness for A-double Commercial Trucks
… to rollovers because of their articulation and rearward amplification. Electronic stability control (ESC) has been mandated by the National Highway Safety Administration (NHSTA) for Class 8 trucks and busses since 2017. When detecting oversteer or understeer, ESC automatically activates the …
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Design synthesis of articulated heavy vehicles with active trailer steering systems
A new design synthesis method for articulated heavy vehicles (AHVs) with an active trailer steering (ATS) system is examined and evaluated. Due to their heavy weights, large sizes, and complex configurations, AHVs have poor maneuverability at low speeds, and low lateral stability at high speeds. …