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Effect of Air Conditioning System on Vehicle Fuel Economy in a Passenger Car  

Kim, Dae-Kwang (Automotive Powertrain System Lab, Ajou University)
Cho, Geun-Jin (Automotive Powertrain System Lab, Ajou University)
Park, Jin-Il (School of Mechanical Engineering, Ajou University)
Lee, Jong-Hwa (School of Mechanical Engineering, Ajou University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.15, no.1, 2007 , pp. 16-22 More about this Journal
Abstract
Fuel efficiency is one of the major issues in regard to energy and environment. As customers desire more comfortable vehicles, increase of accessory traction force is necessary. Air conditioning system (ACS) consumes the biggest traction force among accessories, especially during summer. This means ACS is the primary object deteriorating fuel economy among accessories. Since direct measurement of traction force and fuel consumption in practical vehicle is difficult, comparison analysis is taken between vehicle with and without ACS working. For this comparison, real time measurements are carried out to know ACS traction force and fuel consumption. As a result of the comparison, a vehicle without ACS operation was 15.92% superior to a vehicle with ACS operating. It could be used as a fundamental material for improvement ACS for better fuel efficiency.
Keywords
Air conditioning system(ACS); Engine total friction; Fuel economy; Driving torque;
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