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 43 for “"cornering"”.
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Synthesizing Vehicle Cornering Modes for Energy Consumption Analysis
… energy consumption analysis for highways. The cornering effects on a vehicle during urban driving, however, should be included in urban route analyses with multiple road curves. Inclusion of the cornering effects during an example urban route analysis decreased the error between the on-road …
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Modeling and analysis of off-road tire cornering characteristics
Cornering performance characteristics of wheeled vehicles substantially rely on the forces/moments generated from interactions between pneumatic tires and terrains. Accurate models are thus required to predict these forces/moments to be employed in vehicle simulations for development and design. …
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Improved Vehicle Dynamics Sensing during Cornering for Trajectory Tracking using Robust Control and Intelligent Tires
… maneuvers such as Double Lane Change (DLC) and cornering wherein the lateral force transfer is dependent upon these computations. This research focuses on the development of a high-fidelity vehicle-tire model and control algorithm framework for vehicle trajectory tracking for vehicles operating …
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Effects of reflection and social isolation on crayfish behaviour /
… up (climbing on the wall), turning around, cornering (facing the comer), backward walking, and crossing (crossing the midline of the aquarium). The frequency of rearing up, cornering and turning around decreased when reflection from the glass wall was blocked with black cardboard, black …
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Design and Qualification of a Test Fixture to Experimentally Determine Global Tire Force Properties
… the design for incremental upgrades to support cornering tests and additional instrumentation. An initial load-deflection test has proven that the fixture is capable of creating reproducible data sets. Specific recommendations are made concerning the improvement of data quality for future tests. …
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Enhancement of lateral stability for a multi-wheeled combat vehicle using various control strategies
… and Differential Braking (DB). At high-speed cornering maneuvers, the vehicle experiences higher load transfer which can lead to a loss of the grip between the tires and the ground. Consequently, deterioration of vehicle handling capability can occur. Hence, integration of Semi-Active …
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Modeling and analysis of all-season passenger car tire using finite element analysis
… on the tire-road interactions such as cornering maneuvers. In this research work, a 4-groove Continental Cross Contact LX Sport tire size 235/55 R19 101H is designed and modeled using the Finite Element Analysis (FEA) Technique. All tire layers are modeled separately with the …
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Modelling and analysis of a non-pneumatic tire-road interaction using finite element method
… tire-road interactions, including tractive and cornering performance. In this thesis, a non-pneumatic tire of size 15/6N6 was modelled and verified using Finite Element Analysis. The non-pneumatic tire model was verified through static and dynamic tests, including static footprint, vertical …
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Analysis of Transient and Steady State Vehicle Handling with Torque Vectoring
… or model the response of a vehicle during cornering. Direct Yaw Control using Torque Vectoring has the potential to improve vehicle's transient cornering stability and modify its steady state handling characteristics during lateral maneuvers. In the first part of this thesis, the transient …
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Navigational fuzzy logic control of an autonomous vehicle
… as target steering, target throttle control, cornering throttle control, collision avoidance steering, and collision avoidance throttle control. Several simulation examples are included.
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Autonomous aggressive driving: theory & experiments
… trajectory learning result, we model high-speed cornering with a segment of steady-state cornering for off-road rally racing. We then propose a geometry-based trajectory planning algorithm using the vehicle's differential flatness. This approach avoids solving optimal control problems on-the-fly, …
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Torque control strategy for off-road vehicle mobility.
… of simulation studies, during longitudinal and cornering maneuvers, are conducted to investigate the contribution of typical significant parameters. In addition, the influences of different drivetrain arrangements are presented. The obtained results defined that both traction and cornering …
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Influence of road roughness and directional maneuvers on the dynamic performance of heavy vehicles
… damage potentials are investigated for low speed cornering and high-speed directional maneuvers. A number of measured road profiles are analyzed to identify three groups of roads, namely: smooth, medium and rough roads based on their roughness index (RI) values. A detailed analysis of the road …
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Prediction of the off-road rigid-ring model parameters for truck tire and soft soil interactions
… values tested on a hard surface. The cornering stiffness is primarily load dependant because the inflation pressure is only noticeably influential at high vertical loads. More importantly, the soil builds in front of the tire, creating what is called a bulldozing effect, during high …
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Analysis, detection and early warning control of dynamic rollover of heavy freight vehicles
… conditions are evaluated under steady cornering maneuvers through development and analysis of static roll plane models. The sensitivity of the static rollover threshold (SRT) measure to variations in design and operating factors of the vehicle and suspension configurations is evaluated …
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Modeling and analysis of Regional Haul Steer (RHS) truck tire model
… characteristics included the rolling resistance, cornering force, self-aligning moment, and overturning moment. The analysis was performed at different operating conditions including terrain depth, longitudinal speed, and vertical loads. In general, the results from both surfaces exhibited similar …
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Axiomatic design of customizable automotive suspension systems
… of gravity (CG) height is desired for swift cornering and dynamic stability at high speeds. It is advantageous to have low damping for low force transmission to vehicle frame, whereas high damping is desired for fast decay of oscillations. To eliminate these trade-offs, a novel design for a …
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Elastodynamic Analysis of Vehicle Suspension Uprights
… static and dynamic loading. Steady-state cornering implies that the forces acting on the vehicle are unchanging for a given time. The suspension uprights form a connection between the wheel assembly and the suspension linkages. The criticality of the upright is that it is considered an …
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