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Transient Hybrid Electric Vehicle Powertrain Control Based on Iterative Dynamic Programing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This research proposes an iterative dynamic programing (IDP) algorithm that generates an optimal supervisory control policy for hybrid electric vehicles (HEVs) considering transient powertrain dynamics. The proposed algorithm ...
A Quasi-Dimensional Fuel Distribution Model for a Radially Stratified Engine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Several combustion strategies leverage radial fuel stratification to adapt cylinder composition between the center of the chamber and the outer regions independently. Spark-assisted compression ignition (SACI) relies on ...
Model Predictive Engine Speed Control for Transmissions With Dog Clutches
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The need for cost-effective fuel economy improvements has driven the introduction of automatic transmissions with an increasing number of gear ratios. Incorporation of interlocking dog clutches in these transmissions ...
Observer-Based Cylinder Air Charge Estimation for Spark-Ignition Engines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Spark-ignition engine in-cylinder air charge estimation is important for air-to-fuel ratio (AFR) control, maintaining high after-treatment efficiency, and determination of current engine torque. Current cylinder air charge ...
Online Spark Timing Optimization With Complex High-Fidelity Combustion Phasing, Knock, and Coefficient of Variation of IMEP Models
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The combustion phasing of spark ignition (SI) engines is traditionally regulated with map-based spark timing (SPKT) control. The calibration of these maps is time-consuming for SI engines with a high number of control ...