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 13 of 13 for “"Charge Sustaining"”.
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Willans Line Based Equivalent Consumption Minimization Strategy for Charge Sustaining Hybrid Electric Vehicle
Energy management strategies for charge sustaining hybrid electric vehicles reduce fuel power consumption from the engine and electric power consumption from the motor while meeting output power demand. The equivalent consumption minimization strategy is a real time control strategy which uses …
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Development of a Series Parallel Energy Management Strategy for Charge Sustaining PHEV Operation
… and an automatic transmission. Development of a charge sustaining control strategy for this vehicle involves coordination of controls for each of the main powertrain components through a distributed control strategy. This distributed control strategy includes component controllers for each …
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Plug-in Hybrid Electric Vehicle Supervisory Control Strategy Considerations for Engine Exhaust Emissions and Fuel Use
Defining key parameters for a charge sustaining supervisory (torque split) control strategy as well as an engine and catalyst warm-up strategy for a Split Parallel Architecture Extended-Range Electric Vehicle (SPA E-REV) is accomplished through empirically and experimentally measuring vehicle …
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Optimal Energy Management System of Plug-In Hybrid Electric Vehicle
… of the vehicle. Finally, to obtain optimum charge depletion and charge sustaining mode operation of the vehicle an advanced PSO EMS is designed which provides optimal results for the vehicle to operate in charge depletion and charge sustaining modes. Furthermore, to implement the developed …
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Run-Time HEV Engine-Generator Power-Speed Optimization for Fuel Consumption and Emissions Reduction
… 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 …
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Development of a Supervisory Control Unit for a Series Plug-in Hybrid Electric Vehicle
… to efficiently control the vehicle during charge sustaining operation. The first controller implemented was a simplified bang-bang controller to operate at the global minimum BSFC. A power-tracking controller was then developed to minimize powertrain losses. The power-tracking controller …
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Supervisory Controls Strategy to Reduce Utility Factor Weighted Criteria Emissions for a Plug-In Hybrid Electric Vehicle
… using a large electric vehicle range, known as charge depletion, followed by maintaining a state of charge after a specific vehicle threshold, or charge sustaining. A charge preserve strategy works by running an engine at an optimal loading condition, the engine will burn the fuel more complete …
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The UW EcoCAR2 Vehicle Development Process and Vehicle Level Torque Control Strategy Documentation
… as an EV for the first 50 miles after being charged off of the grid. This very heavy reliance on grid electricity for propulsion addresses all four of the primary technical goals of the competition. Once the battery pack is depleted, the vehicle will turn on a 1.7L turbo diesel engine …
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A Plug-in Hybrid Electric Vehicle Loss Model to Compare Well-to-Wheel Energy Use from Multiple Sources
… hybrid electric vehicle (SPHEV). The energy for charge sustaining operation is converted from fuel in an auxiliary power unit (APU). Compressed hydrogen gas is converted to electricity via the use of a fuel cell system and boost converter. For E85, the APU is an engine coupled to a generator. The …
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Evaluation of the Cycle Profile Effect on the Degradation of Commercial Lithium Ion Batteries
… goals. Understanding the effect of the charge/discharge cycle profiles on battery durability is important to the implementation of batteries in electrified vehicles and to the design of appropriate battery testing protocols. In this work, commercial high-power prismatic lithium ion cells …
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Model and Control System Development for a Plug-In Parallel Hybrid Electric Vehicle
… is a Fuzzy controller for torque management in charge depleting (CD) and charge sustaining (CS) modes. The developed strategy proves to be functional without having a negative impact of the energy consumption characteristics of the hybrid powertrain. Bench testing activities with the V8 engine, …
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Modeling the impact of battery degradation within lifecycle cost based design optimization of heavy-duty hybrid electric vehicles
… vehicle (PHEV) powertrain architectures with charge depleting and charge sustaining modes of operation. These simulation results were then evaluated for real-world economic viability under different economic assumptions corresponding to the 2015, 2020, 2025 and 2030 time frames. Sensitivity of …
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Analysis and Design of Stable and Optimal Energy Management Strategies for Hybrid Electric Vehicles
… between the different sources of energy in a charge-sustaining pre-transmission parallel HEV, ensuring stability and optimality with respect to a performance objective, is addressed in this dissertation. The dissertation develops a generic stability and optimality framework within which energy …