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RISParameter Set Reduction and Ensemble Kalman Filtering for Engine Model Calibration
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A novel methodology is presented in this paper to reduce the burden of calibrating an engine model associated with a high number of parameters and nonlinear equations. The proposed idea decreases the calibration candidate ...
SI–HCCI Mode Transitions Without Open-Loop Sequence Scheduling: Online Parameter Adaptation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A parameter adaptation method for a previously developed spark ignition (SI) to homogeneous charge compression ignition (HCCI) combustion mode transition control architecture is described. The goal of the adaptive method ...
SI-HCCI Mode Transitions Without Open-Loop Sequence Scheduling: Control Architecture and Experimental Validation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper describes a model-based feedback control method to transition from spark ignition (SI) to homogeneous charge compression ignition (HCCI) combustion in gasoline engines. The purpose of the control structure is ...
A Linear Least Squares Algorithm for Double Wiebe Functions Applied to Spark Assisted Compression Ignition
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An algorithm for determining the four tuning parameters in a doubleWiebe description of the combustion process in sparkassisted compression ignition engines is presented where the novelty is that the tuning problem is posed ...
Cycle-to-Cycle Feedback for Combustion Control of Spark Advance at the Misfire Limit
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: At a given speed and load, the spark advance (SA) is tuned to reach the maximum brake torque (MBT) timing to maximize efficiency. The use of exhaust gas recirculation (EGR) can further improve fuel economy (FE) at the same ...
Current Imbalance in Dissimilar Parallel-Connected Batteries and the Fate of Degradation Convergence1
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper proposes an analytical framework describing how initial capacity and resistance variability in parallel-connected battery cells may inflict additional variability or reduce variability while the cells age. We ...
Fast Computation of Combustion Phasing and Its Influence on Classifying Random or Deterministic Patterns
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The classification between a sequence of highly variable combustion events that have an underlying deterministic pattern and a sequence of combustion events with similar level of variability but random characteristics is ...
A Receding-Horizon Framework for Co-Optimizing the Velocity and Power-Split of Automated Plug-In Hybrid Electric Vehicles
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a control framework to co-optimize the velocity and power-split operation of a plug-in hybrid vehicle (PHEV) online in the presence of traffic constraints. The principal challenge in its online ...
Co-Optimization of Velocity and Charge-Depletion for Plug-In Hybrid Electric Vehicles: Accounting for Acceleration and Jerk Constraints
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Recent advances in vehicle connectivity and automation technologies promote advanced control algorithms that co-optimize the longitudinal dynamics and powertrain operation of hybrid electric vehicles. Typically, a sequential ...
Parameterization of Battery Electrothermal Models Coupled With Finite Element Flow Models for Cooling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Developing and parameterizing models that accurately predict the battery voltage and temperature in a vehicle battery pack are challenging due to the complex geometries of the airflow that influence the convective heat ...