Browse Publications Technical Papers 2004-01-1513

Air Conditioning HEV While Stopped in Traffic 2004-01-1513

HEVs idle their engine during the stops to meet the cooling loads. However, idling reduces fuel economy and increases emissions and engine wear. The paper focuses on exploring alternative strategies for air conditioning the HEV during stop times. Simulation analyses are used to identify fundamental differences and new technology tradeoffs encountered in HEVs. An analysis of cooling loads on a car under typical weather and driving conditions is combined with efficiency estimates for an advanced a/c system to compare different cooling strategies in terms of fuel usage and overall system COP. Options considered include belt-and electrically-driven compressors, with thermal and electrical storage technologies. The results of this parametric analysis narrow the range of cooling strategies to be considered for detailed analysis and prototype testing.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 40% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.