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 11 of 11 for “"Tire Force"”.
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Design and Qualification of a Test Fixture to Experimentally Determine Global Tire Force Properties
… advent of finite element methods has changed the tire industry's design process over the past three decades. Analyses, previously impractical using analytical methods and physically limited by experimental methods, can now be performed using computational methods. This decreases the cost and time …
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Intelligent Tire Based Tire Force Characterization and its Application in Vehicle Stability and Performance
In any automotive system, the tires 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 …
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Analysis of Transient and Steady State Vehicle Handling with Torque Vectoring
… limit handling capability through optimal tire force allocation and drivability demonstrated by understeer gradient. Optimal tire force allocation prescribes equal usage in all four tires during maneuvers. This is enabled using steering and Torque Vectoring. An analytical proof is presented …
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Driver behavior classification and lateral control for automobile safety systems
… on developing three technologies (longitudinal tire force estimation, driver behavior classification and lateral control) using low-cost sensors that can be utilized in ADAS. For the longitudinal tire force estimation, a low cost 1Hz positioning global system (GPS) and a steering angle sensor …
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Developing a Vehicle Hydroplaning Simulation using Abaqus and CarSim
Tires are the most influential component of the vehicle as they constitute the only contact between the vehicle and the road and have to generate and transmit forces necessary for the driver to control the vehicle. Hydroplaning is a phenomenon which occurs when a layer of water builds up between …
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Treatment of Uncertainties in Vehicle and Terramechanics Systems Using a Polynomial Chaos Approach
… vehicle-soil interaction model, two stochastic tire-snow interaction models, and two stochastic tire-force relations. The uncertainties are quantified and propagated through vehicle and terramechanics systems using a polynomial chaos approach. Algorithms which can predict the geometry of the …
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Optimal passive nonlinear damper design methodology for road race application
… which maximizes lateral acceleration based on tire data, optimization of the objective function by varying damping and inertance, identification of mode shapes and root locus analysis. No closed form solution exists for an optimal linear or nonlinear damper which maximizes lateral acceleration. …
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Influence of road roughness and directional maneuvers on the dynamic performance of heavy vehicles
… that the multiple excitations arising from the tire-road interactions and the directional maneuvers, significantly contribute to the dynamic wheel loads transmitted to the pavement. The contributions of excitations arising from directional maneuvers to the dynamic wheel load are presented in …
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Adaptive Rollover Control Algorithm Based on an Off-Road Tire Model
… 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 forces to direct the motion of the vehicle. Tire force and moment behavior has been researched extensively and several accurate tire models exist. …
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Optimal planning and control for hazard avoidance of front-wheel steered ground vehicles
… magnitude constraint, which is analogous to a tire friction circle constraint. The optimal point mass solutions are extended to a nonlinear bicycle model by defining a flatness-based trajectory tracking controller using tire force control. This controller decouples the bicycle dynamics into a …
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Estimation of Disturbance Inputs to a Tire Coupled Quarter-car Suspension Test Rig
… of the disturbance displacement input to the tire and an external disturbance force, representing handling and aerodynamic forces, acting on the sprung mass of a quarter-car suspension test rig was generated. This information is intended for use in active control methods applied to vehicle …