Actions for Climate Control Load Reduction Strategies for Electric Drive Vehicles in Cold Weather [electronic resource] : Preprint

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Climate Control Load Reduction Strategies for Electric Drive Vehicles in Cold Weather [electronic resource] : Preprint

Published
Washington, D.C. : United States. Office of the Assistant Secretary of Energy Efficiency and Renewable Energy, 2016.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description
975 KB : digital, PDF file
Additional Creators
National Renewable Energy Laboratory (U.S.), United States. Office of the Assistant Secretary of Energy Efficiency and Renewable Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
When operated, the climate control system is the largest auxiliary load on a vehicle. This load has significant impact on fuel economy for conventional and hybrid vehicles, and it drastically reduces the driving range of all electric vehicles (EVs). Heating is even more detrimental to EV range than cooling because no engine waste heat is available. Reducing the thermal loads on the heating, ventilating, and air conditioning system will extend driving range and increase the market penetration of EVs. Researchers at the National Renewable Energy Laboratory have evaluated strategies for vehicle climate control load reduction with special attention toward grid connected electric vehicles. Outdoor vehicle thermal testing and computational modeling were used to assess potential strategies for improved thermal management and to evaluate the effectiveness of thermal load reduction technologies. A human physiology model was also used to evaluate the impact on occupant thermal comfort. Experimental evaluations of zonal heating strategies demonstrated a 5.5% to 28.5% reduction in cabin heating energy over a 20-minute warm-up. Vehicle simulations over various drive cycles show a 6.9% to 18.7% improvement in EV range over baseline heating using the most promising zonal heating strategy investigated. A national-level analysis was conducted to determine the overall national impact. If all vehicles used the best zonal strategy, the range would be improved by 7.1% over the baseline heating range. This is a 33% reduction in the range penalty for heating.
Report Numbers
E 1.99:nrel/cp-5400-65439
nrel/cp-5400-65439
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Other Subject(s)
Note
Published through SciTech Connect.
03/31/2016.
"nrel/cp-5400-65439"
9 1 ISSN 1946--4002
Presented at the SAE 2016 World Congress and Exhibition, 12-14 April 2016, Detroit, Michigan.
Jeffers, Matthew; Chaney, Lawrence; Rugh, John.
Funding Information
AC36-08GO28308
View MARC record | catkey: 23760204