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RISOn Rigorous Model-Order Reduction of the Thermal and Oxygen Storage Dynamics of Three Way Catalytic Converters
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We present a reduced-order model (ROM) for the temperature and oxygen storage dynamics of three way catalysts (TWCs). The thermal and oxygen storage dynamics are described using a set of coupled, nonlinear partial differential ...
Modeling the Flow and Transport Dynamics in Gasoline Particulate Filters to Improve Filtration Efficiency
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We propose a new pore-scale/channel model, or hybrid model, for the fluid flow and particulate transport in gasoline particulate filters (GPFs). GPFs are emission control devices aimed at removing particulate out of the ...
Multistage Time-Optimal Control for Synchronization Process in Electric-Driven Mechanical Transmission With Angle Alignment Considering Torque Response Process
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The synchronization process takes up almost one half of the time of the gear-shifting process, and also influences the impacts between the sleeve and the gear ring. To avoid impacts and reduce time duration, a time-optimal ...
Characterization and Synthesis of Duty Cycles for Battery Energy Storage Used in Peak Shaving Dispatch
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Energy storage systems (ESSs), such as lithium-ion batteries, are being used today in renewable grid systems to provide the capacity, power, and quick response required for operation in grid applications, including peak ...
Experimental Validation of Nonlinear Model Predictive Control for a Heavy-Duty Diesel Engine Waste Heat Recovery System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper discusses an experimental validation of a real-time augmented control scheme for an organic Rankine cycle (ORC) waste heat recovery (WHR) system. A nonlinear model predictive control (NMPC) is designed to regulate ...
Rule-Based Time-Optimal Engine-Start Coordination Control With a Predesigned Vehicle Acceleration Trajectory in P2 Hybrid Electric Vehicles
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Removing the integrated starter generator (ISG) in P2 hybrid electric vehicles (HEVs) reduces the overall cost of the powertrain, yet it comes with an additional control complexity of the engine-start process. An appropriate ...
Mean-Value Exergy Modeling of Internal Combustion Engines: Characterization of Feasible Operating Regions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, a novel mean-value exergy-based modeling framework for internal combustion engines is developed. The characterization of combustion irreversibilities, nonstoichiometric combustion, and thermal exchange between ...
Exergy Management Strategies for Hybrid Electric Ground Vehicles: A Dynamic Programming Solution
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this work, exergy management strategies (ExMSs) for hybrid electric ground vehicles (HEVs) are developed. The main advantage of using the exergetic framework is the possibility of pursuing unconventional optimization ...
Offline and Online Exergy-Based Strategies for Hybrid Electric Vehicles
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Exergy-based control strategies for ground hybrid electric vehicles (HEVs) enable to pursue unconventional optimization goals that are inaccessible when standard energy-based modeling frameworks based on fuel consumption ...