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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 ...
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 ...
Fuel Economy of a Multimode Combustion Engine With Three Way Catalytic Converter
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Highly diluted, low temperature homogeneous charge compression ignition (HCCI) combustion leads to ultralow levels of engineout NOx emissions. A standard drive cycle, however, would require switches between HCCI and ...
Fabrication of Multimeasurand Sensor for Monitoring of a Li-Ion Battery
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper details the fabrication and testing of a combined temperature and expansion sensor to improve state of charge (SOC) and state of health (SOH) estimation for Li-ion batteries. These sensors enable the characterization ...