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 276 for “"braking"”.
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Anti-lock braking technique
… project is aimed at understanding passenger car braking systems together with the hazards in cases of wheel locking. After the objectives for an anti-lock system are analysed, increasing vehicle safety using a microprocessor based monitoring system to provide anti-lock function is considered.
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Dynamic Braking Control for Accurate Train Braking Distance Estimation under Different Operating Conditions
… Adaptive Control (MRAC) for train dynamic braking is investigated in order to control dynamic braking forces while remaining within the allowable adhesion and coupler forces. This control method can accurately determine the train braking distance. One of the critical factors in Positive …
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Driver-vehicle interaction in braking
… that provide intuitive brake control and proper braking performance information for the driver. As a preliminary study in brake system design, the characteristics of human leg motion and its underlying motor control scheme were studied through experiments and simulations. Automotive brake systems …
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Advanced Braking Systems for Heavy Vehicles
… research into the use of advanced emergency braking hardware and wheel slip control algorithms on pneumatically braked heavy goods vehicles. Anti-lock braking systems (ABS) on commercial heavy vehicles use inefficient control approaches that work on cycles of exceeding the limits of tyre-road …
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Magnetic braking in low-mass stars
… driven by angular momentum loss due to magnetic braking (MB). Although the same fundamental mechanism likely drives MB in all these systems, a holistic study of such a mechanism has not been carried out before. Here I aim to investigate whether observations of CV evolution and the spins of single …
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Design of a FSAE braking system
… international collegiate design competition. The braking system for the MY18 vehicle developed by MIT Motorsports must enable the driver to consistently and reliably decelerate the vehicle at the maximum rate allowed by the traction limit of the tires. Crucial engineering data needed for a …
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Hybrid electric vehicle regenerative-braking using ultracapacitors
… for electric load leveling and regenerative braking is presented. Proposed sizing of an ultracapacitor system is presented and discussed based on the available energy and the nominal operating voltage from a hybrid electric vehicle transit bus; A control scheme is required to effectively …
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Tire Models for Use in Braking Applications
… and the ground is the limiting factor for a safe braking. To get optimal performance it is important that the system can utilize all friction resources. The brush tire model was a popular method in the 1960's and 1970's before the empirical approaches became dominating. The brush model gives an …
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The Quickness of Selected Automobile Braking Methods
Made available in DSpace on 2014-12-10T18:06:44Z (GMT). No. of bitstreams: 1 6604139.pdf: 3791980 bytes, checksum: c14b7bc710ccb559b05e75c183a1827a (MD5) Previous issue date: 1965
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A study of rolling adhesion in braking
… time on the coefficient of adhesion at slip in braking was investigated. A test rig that simulated locomotive wheel/rail interactions was used for the experimentation. The results indicated a drop in the coefficient of adhesion with increasing speed. However, normal load, contact velocity, and …
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The effect of braking on automobile vehicle dynamics.
Thesis: M.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1978
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Regenerative braking on bicycles to power LED safety flashers
… of the kinetic energy ordinarily lost during braking on bicycles to power LED safety flashers. The system is designed to eliminate: (a) battery changing in popular LED flashers, and (b) the "generator drag" associated with battery-less human-powered bicycle lights and flashers. System sizing, …
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Discrete Tire Modeling for Anti-lock Braking System Simulations
… various high-frequency events such as anti-lock braking and short-wavelength disturbances from the road. Major thrust has been provided by the tire industry to develop simulation models that accurately predict the dynamic response of tires without the use of computationally intensive tools such …
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Integrated vehicle dynamics control using active steering, driveline and braking
This thesis investigates the principle of integrated vehicle dynamics control through proposing a new control configuration to coordinate active steering subsystems and dynamic stability control (DSC) subsystems. The active steering subsystems include Active Front Steering (AFS) and Active Rear …
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Emergency Braking in Compact Vehicle Platoons: A Cyber-Physical Design
… difficult to guarantee safety, especially, when braking in an emergency. The longitudinal and lateral control systems developed so far aim to achieve string stability in the cruise scenario, i.e., to prevent that small variations at the lead magnify towards the trail. Unfortunately, this has no …
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Recuperation of Regenerative Braking Energy in Electric Rail Transit Systems
… consumers of energy. In trains with regenerative braking capability, a fraction of the energy used to power a train is regenerated during braking. This regenerated energy, if not properly captured, is typically dumped in the form of heat to avoid overvoltage. Finding a way to recuperate …
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Maximizing Energy Harvesting in Electric Vehicles through Optimal Regenerative Braking Utilization
… the driving range of EVs is through regenerative braking capability which is defined as the process of recapturing the kinetic energy of the vehicle during braking and converting it to electrical energy. This unique capability of EVs is achieved by controlling the electric motor to operate as a …
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