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Full-Text Articles in Automotive Engineering
Vehicle Velocity Prediction Using Artificial Neural Networks And Effect Of Real-World Signals On Prediction Window, Tushar Dnyaneshwar Gaikwad
Vehicle Velocity Prediction Using Artificial Neural Networks And Effect Of Real-World Signals On Prediction Window, Tushar Dnyaneshwar Gaikwad
Masters Theses
Prediction of vehicle velocity is essential since it can realize improvements in the fuel economy/energy efficiency, drivability, and safety. Many publications address velocity prediction problems, yet there is a need for the understanding effect of different signals for the prediction. There are numerous new sensor and signal technologies like vehicle-to-vehicle and vehicle-to-infrastructure communication that can be used to obtain comprehensive datasets. Several references considered deterministic and stochastic approaches that use the datasets as input to determine future operation predictions. These approaches include different traffic models and artificial neural networks such as Markov chain, nonlinear autoregressive model, Gaussian function, and recurrent …
Electrical Optimization Of A Plug-In Hybrid Electric Vehicle, Andre J. Napier
Electrical Optimization Of A Plug-In Hybrid Electric Vehicle, Andre J. Napier
Doctoral Dissertations and Master's Theses
Hybrid electric vehicles electrification and optimization is a prominent part of today’s automotive industry. GM and the Department of Energy challenge 16 universities across North America to redesign a Chevrolet Camaro into a hybrid electric vehicle. This thesis will address how Embry Riddle Aeronautical University’s EcoCAR team electrified and optimized the vehicle. The objective of the thesis is to optimize the electric portion of the vehicle, particularly the low voltage circuitry. Prior work is discussed in detail on the vehicle communication bus, building the power distribution unit and the approach the electrical team took when building the electric portion of …
Application Of Floating Pedal Regenerative Braking For A Rear-Wheel-Drive Parallel-Series Plug-In Hybrid Electric Vehicle With An Automatic Transmission, Dylan Lewis Lewton
Application Of Floating Pedal Regenerative Braking For A Rear-Wheel-Drive Parallel-Series Plug-In Hybrid Electric Vehicle With An Automatic Transmission, Dylan Lewis Lewton
Doctoral Dissertations and Master's Theses
As the world continues to move further away from our reliance on fossil fuels, hybrid vehicles are becoming ever more popular. Braking is a system on both hybrid and normal vehicles that involves a significant amount of power and energy. A hybrid can recapture some of that energy using regenerative braking. In this thesis, a method is devised to blend hydraulic and regenerative braking in the most effective manner. A MATLAB Simulink model was built to simulate a parallel-series plug-in hybrid electric vehicle. The model allows for the implementation of a regenerative brake controller that utilizes floating pedal regen, custom …
Traction And Launch Control For A Rear-Wheel-Drive Parallel-Series Plug-In Hybrid Electric Vehicle, Adam Michael Szechy
Traction And Launch Control For A Rear-Wheel-Drive Parallel-Series Plug-In Hybrid Electric Vehicle, Adam Michael Szechy
Doctoral Dissertations and Master's Theses
Hybrid vehicles are becoming the future of automobiles leading into the all-electric generation of vehicles. Electric vehicles come with a great increase in torque at lower RPM resulting in the issue of transferring this torque to the ground effectively. In this thesis, a method is presented for limiting wheel slip and targeting the ideal slip ratio for dry asphalt and low friction surfaces at every given time step. A launch control system is developed to further reduce wheel slip on initial acceleration from standstill furthering acceleration rates to sixty miles per hour. A MATLAB Simulink model was built of the …
Modeling The Impact Of Battery Degradation Within Lifecycle Cost Based Design Optimization Of Heavy-Duty Hybrid Electric Vehicles, Ashish P. Vora
Modeling The Impact Of Battery Degradation Within Lifecycle Cost Based Design Optimization Of Heavy-Duty Hybrid Electric Vehicles, Ashish P. Vora
Open Access Dissertations
The optimal design of hybrid electric vehicle (HEV) powertrains from a systems perspective is critical to realize the maximum benefits for a given application. This is particularly true in the heavy-duty vehicle space where the major challenges are: (i) greater emphasis on economic viability, (ii) reluctance to take on risk associated with new technologies, and (iii) numerous diverse applications that preclude a one-size-fits-all approach to hybrid-electric powertrain design. Past studies on HEV powertrain design have either ignored battery degradation, or failed to holistically capture its impact from a lifecycle cost perspective. The focus of this effort is the development of …
Run-Time Hev Engine-Generator Power-Speed Optimization For Fuel Consumption And Emissions Reduction, Chester Paul Rowe Ii
Run-Time Hev Engine-Generator Power-Speed Optimization For Fuel Consumption And Emissions Reduction, Chester Paul Rowe Ii
Doctoral Dissertations and Master's Theses
As fuel economy and emissions standards become more stringent, Plug-in Hybrid Electric Vehicles (PHEV) using series architectures are being increasingly explored. Due to the decoupling of the Internal Combustion Engine (ICE) from the road, the primary control challenge in this architecture is the optimization of an ICE control law. A run-time Genset speed controller is presented for use during the charge-sustaining mode in a Series PHEV to find the optimal operating parameters for a conventional diesel engine coupled to an electric generator in terms of minimized fuel consumption and emissions generation. On board vehicle sensors provide real time data to …
Decreasing The Power Consumption Of Hybrid Electric Vehicle Architectures, Domenic Leo Barsotti
Decreasing The Power Consumption Of Hybrid Electric Vehicle Architectures, Domenic Leo Barsotti
Doctoral Dissertations and Master's Theses
This paper presents the challenges seen by current automotive manufacturers in their investigation of more fuel efficient vehicles. The two main areas for improvement are aerodynamics and passive cooling of electrical systems. Aerodynamics of an Ahmed body is investigated with a drag reduction system proposed utilizing slot jets at the rear of the bluff body . Two separate systems show a decrease in drag of 16 and 25%. The paper also investigates the use of a phase change material for a hybrid electric vehicles energy storage system cooling. Phase change materials take advantage of the latent heat of fusion to …
Development Of A Supervisory Control Unit For A Series Plug-In Hybrid Electric Vehicle, Brian Neal Harries
Development Of A Supervisory Control Unit For A Series Plug-In Hybrid Electric Vehicle, Brian Neal Harries
Doctoral Dissertations and Master's Theses
A Series PHEV was chosen, as ERAU's entry into EcoCAR2 through a multidisciplinary architecture selection process. The series architecture was chosen for its mechanical feasibility, consumer acceptability and its performance on energy consumption simulations. The Series PHEV architecture was modeled using Matlab, Simulink, and dSPACE ASM tools, to create a plant model for controller development. A supervisory controller was developed to safely control the interactions between powertrain components. The supervisory control unit was tested using SIL and HIL methodologies. The supervisory controller was developed with an emphasis on fault detection and mitigation for safety critical systems. A power management control …
Development And Implementation Of A Fault Mitigating Control System For A Biodiesel Plug-In Hybrid Electric Vehicle For The Ecocar: The Next Challenge Competition, Sean Christopher Carter
Development And Implementation Of A Fault Mitigating Control System For A Biodiesel Plug-In Hybrid Electric Vehicle For The Ecocar: The Next Challenge Competition, Sean Christopher Carter
Doctoral Dissertations and Master's Theses
The automotive industry is continuously developing, and with it hybrid vehicle technology is a growing field of interest. The design of the electric vehicle is a pressing matter and grows in complexity with new powertrain components such as power inverters and transmission systems that use electric motors. As a control system develops, the architecture always comes back to systems engineering documentation to find safety protocols, solutions to problems through fault testing, and validating and verifying the control architecture throughout the whole process. Testing and evaluation plans are required more than ever and are constantly being updated and implemented in today's …