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 12 of 12 for “"Wheel Speed"”.
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Wheel Speed Distribution Control and its Effect on Vehicle
… the art vehicle chassis control system known as "Wheel Speed Distribution Control" (WSDC) has been proposed. WSDC in principle relies on controlling the vehicle driven wheel speeds to enforce better vehicle handling performance. The WSDC system capacity has been investigated using numerical …
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An evaluation of a wheel speed change-gyro-compass utilizing a single-degree-of-freedom gyroscope
Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics. Thesis. 1967. M.S.
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Modelling and prediction of tire-rim slip with finite element analysis
… load, inflation pressure, and longitudinal wheel speed. Two terrain types were used: a high-friction hard surface and a soft SPH soil calibrated to represent upland sandy loam. An additional step was the design and training of a neural network-based virtual sensor for the prediction of …
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Techniques in Kalman Filtering for Autonomous Vehicle Navigation
… an inertial measurement unit (IMU), and wheel speed sensors (WSS) using the framework of Kalman filtering (KF). To demonstrate the flexibility of the KF several methods are explored and implemented such as constraints, multi-rate data, and cascading filters to augment the measurement …
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High-rate centreless grinding of ferrous components.
… to operate satisfactorily at high grinding wheel speeds and in the high rate centreless grinding regime. The principal modifications included the provision of a 75 k. W. d. c., variable speed, main drive motor which enables grinding wheel speeds up to 120 m/s to be employed and a coolant …
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A Novel Road Grip Estimation Method Using a Vehicle as a Probe
… (via onboard sensors). The relationship between wheel slip ratios and vehicle longitudinal acceleration, which is very similar to the relationship between wheel slip ratio and the tire longitudinal force, is used as the foundation of the estimation algorithm. Vehicle wheel speeds (used to …
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Geometrical Error Analysis and Correction in Robotic Grinding
… influential variables, such as depth of cut, wheel speed, feed speed, dressing condition and system time constant. The recorded data and associated error reduction provide a significant evidence to support the viability of implementing a robotic system for various grinding applications, …
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Tire Modeling and Friction Estimation
… implemented and validated on a personal car. The wheel speed signal is an essential signal in many system applications. Based on problems observed during performed measurements, a few ways to reduce the noise on the signal, without adding any phase shift or time delay, are discussed in the thesis.
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Development of a Heavy Truck Vehicle Dynamics Model using Trucksim and Model Based Design of ABS and ESC Controllers in Simulink
… input and constant radius test with increasing speed. The model was validated in all three loading conditions: Bobtail or solo tractor, low CG trailer and high CG trailer condition. The vehicle responses obtained from TruckSim were compared against the experimental field test data obtained from …
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Investigation of Fluid Flow in Grinding using LDA Techniques and CFD Simulation
… reduce the risk of thermal damage and reduce wheel wear. The thesis describes the work completed in the investigation of the complex fluid flow that occurs in the region close to the grinding contact zone between the wheel and workpiece and the boundary layer phenomena around the periphery of …
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Time-resolved measurements of a transonic compressor during surge and rotating stall
… stages) at the NASA Lewis single-stage, high-speed, core-compressor test-rig. The measurements were obtained with a single circumferential, high-response, total pressure and total temperature probe. The measurements were taken immediately after the machine was ’tripped’ into unstable operation …
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Development and performance of a velocity control system for modern combustion-powered scooters
… free and noiseless operation. A redundant wheel speed sensor measures the vehicle velocity using the Hall effect with a precision of 0.04 km/h. The entire system is managed by a central ECU, executing the actual velocity control, fail-safe functions, power supply and handling …