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.
Results
Showing 1 to 16 of 16 for “"Articulated Heavy Vehicles"”.
-
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. …
-
A wireless communication based active safety system for articulated heavy vehicles
… been developed to improve the safety of road vehicles. This dissertation presents a novel active trailer steering (ATS) system using wireless communication to exchange data among controllers and sensors allocated on the leading and trailing units of an articulated heavy vehicle (AHV). …
-
Lateral stability analysis and MPC tracking control for articulated heavy vehicles
Articulated heavy vehicles (AHVs) exhibit poor maneuverability during curved-path negotiations and low lateral stability under high-speed evasive maneuvers, which may lead to unstable motion modes, e.g., trailer-sway and jackknifing, causing severe accidents. However, vehicle parameters that can …
-
Coordinated control of active safety systems for multi-trailer articulated heavy vehicles
… the directional performance of multitrailer articulated 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 …
-
Parallel design optimization of multi-trailer articulated heavy vehicles with active safety systems
Multi-trailer articulated heavy vehicles (MTAHVs) exhibit unstable motion modes at high speeds, including jack-knifing, trailer swing, and roll-over. These unstable motion modes may lead to fatal accidents. On the other hand, these vehicle combinations have poor maneuverability at low speeds. Of …
-
Fault tolerant control of active trailer steering systems for multi-trailer articulated heavy vehicles
… thesis focuses on FTC systems for Multi-Trailer Articulated Heavy Vehicles (MTAHVs), particularly for Active Trailer Steering (ATS) systems. MTAHVs are vital to the trucking industry, and it is crucial to enhance their safety, reliability and usability. In this research, a 4-DOF linear yaw-plane …
-
Autonomous driving control strategies for multi-trailer articulated heavy vehicles with active safety system
… active control system for multi-trailer articulated heavy vehicles (MTAHVs) to enhance road transport efficiency, directional performance, and safety. To this end, a MTAHV with the configuration of A-train double was selected to be the subject vehicle, and the required vehicle models were …
-
Semi-autonomous driving control of multi-trailer articulated heavy vehicles for increasing highway traffic safety
… driving strategies for Multitrailer Articulated Heavy Vehicles (MTAHVs) to enhance highway safety and transportation efficiency. While autonomous driving has progressed, concerns about safety, reliability, and ethical issues remain, making the transition to full autonomy gradual. …
-
High-speed lateral stability analysis of articulated heavy vehicles using driver-in-the-loop real time simulation
… the lateral stability of multi-trailer articulated heavy vehicles (MTAHV) include the use of both an open-loop and a closed-loop maneuvers as specified in ISO-14791. The standard testing procedures are used to determine the Rearward Amplification (RA), which is a well-accepted …
-
Enhancing roll stability and directional performance of articulated heavy vehicles based on anti-roll control and design optimization.
… to actively improve the rollover stability of articulated heavy vehicles (AHVs) during high speed manoeuvres using anti-roll control systems. A 3-dimensional (3-D) linear yaw/roll model with 5 degrees of freedom is developed. Based on this model a linear quadratic regulator (LQR) controller is …
-
Design and validation of active trailer steering systems for articulated heavy vehicles using driver-hardware-in-the-loop real-time simulation
… high-speed lateral stability of Double Trailer Articulated Heavy Vehicles (DTAHVs), an Active Trailer Steering (ATS) system has been designed. To date, investigations on ATS systems are mainly focused on numerical simulations. To advance this research towards real-world applications, a …
-
Design of robust active trailer steering controllers for multi-trailer articulated heavy vehicles using software/hardware-in-the-loop real-time simulations
… and environmental benefits, Multi-Trailer Articulated Heavy Vehicles (MTAHVs) have been frequently adopted by the trucking industry. Despite the above advantages, MTAHVs exhibit two particular challenges concerning road safety. MTAHVs exhibit poor maneuverability at low speeds and low …
-
Experimental Evaluation of Roll Stability Control System Effectiveness for A-double Commercial Trucks
… The study includes straight-rail trailers with heavy and light loading conditions. Commercial trucks are more susceptible to rollovers than passenger cars because of their higher center of gravity relative to their track width. Multi-trailer articulated heavy vehicles, such as A-doubles, are …
-
Influence of road roughness and directional maneuvers on the dynamic performance of heavy vehicles
The gross vehicle weight (GVW) and dimensions of articulated freight vehicles have been considerably relaxed during the past few decades, which have contributed to many concerns related to highway safety and preservation of the roadways. The directional dynamics of articulated heavy vehicles is …
-
Analysis, detection and early warning control of dynamic rollover of heavy freight vehicles
… on static and dynamic roll behavior of the vehicles, identification of indicators for the onset of instability, and reliability analysis. The relative and absolute roll instability criteria are initially derived from the rollover mechanics of different heavy vehicle combinations. The …