{"accessLevel": "public", "bureauCode": ["020:00"], "contactPoint": {"fn": "Joseph McDonald", "hasEmail": "mailto:mcdonald.joseph@epa.gov"}, "description": "The purpose of this work was to develop a 48 V mild hybrid electric vehicle (MHEV) model for drive cycle simulation using the EPA Advanced Light-Duty Powertrain and Hybrid Analysis tool (ALPHA).  The work included controls development, component and vehicle modeling , and model validation for simulations of a vehicle with a 48 V Belt Integrated Starter Generator (BISG) MHEV system.  An initial model design was also developed for a 48 V inline on-axis P2-configuration MHEV and will be validated as part of future work. Both MHEV configurations were developed into sub-models using a MATLAB/Simulink/Stateflow tool.  The sub-models have subsequently been integrated into EPA\u2019s ALPHA vehicle model.  Initial sub-model development and validation was conducted using the commercially-available Gamma Technology GT-DRIVE vehicle simulation model. The mild hybrid electric vehicle model was validated using vehicle data obtained from Argonne National Laboratory (ANL) chassis dynamometer tests of a 2013 Chevrolet Malibu Eco 115 V 15 kW BISG mild hybrid electric vehicle. The simulated fuel economy, engine torque/speed, motor torque/speed, engine on-off controls, battery voltage, current, and State of Charge (SOC) were all in good agreement with the vehicle test data on a number of drive schedules. The developed 48 V mild hybrid electric vehicle model can be used to estimate the GHG emissions and fuel economy of 48 V mild hybrid electric vehicles over the EPA regulatory drive cycles and to estimate off-cycle GHG emissions, real-world GHG emissions, and vehicle energy flows. The 48 V mild hybrid electric vehicle model will be further validated with additional 48 V mild hybrid electric vehicle test data in the future as more vehicle models become available. EPA has included 48 V BISG mild hybrid electric vehicle technology in its assessment of CO2-reducing technologies available for compliance with U.S. GHG standards. \n\nThis dataset is associated with the following publication:\nLee, S., M. Safoutin, A. Neam, J. Cherry, and J. McDonald. Modeling and Controls Development of 48V Mild Hybrid Electric Vehicles.   SAE Technical Paper Series. SAE International, Warrendale, PA, USA,  15, (2018).", "distribution": [{"downloadURL": "https://pasteur.epa.gov/uploads/10.23719/1435438/SAE%202018-01-0413%2048V%20MHEV%20Model.zip", "mediaType": "application/x-zip-compressed", "title": "SAE 2018-01-0413 48V MHEV Model.zip"}], "identifier": "https://doi.org/10.23719/1435438", "keyword": ["Electric Vehicles", "Energy Demand", "GHG", "Hybrid Electric Vehicles", "Internal Combustion Engines", "Light-duty Vehicles", "air quality"], "license": "https://pasteur.epa.gov/license/sciencehub-license.html", "modified": "2018-05-01", "programCode": ["020:094"], "publisher": {"name": "U.S. EPA Office of Research and Development (ORD)", "subOrganizationOf": {"name": "U.S. Environmental Protection Agency", "subOrganizationOf": {"name": "U.S. Government"}}}, "references": ["https://doi.org/10.4271/2018-01-0413"], "rights": null, "title": "Supporting data for \"Lee, S., Cherry, J., Safoutin, M., Neam, A., McDonald, J., Newman, K.  2018. Modeling and Controls Development of 48 V Mild Hybrid Electric Vehicles. SAE 2018-01-0413\" V1"}