A Power, Economy and Space Trade-off Analysis on Passenger Vehicles Controlled with China CAFC Requirement

China released its Corporate Average Fuel Consumption (CAFC) regulation to improve fuel economy of passenger vehicles and reduce energy and environment-related risks in China. Compliance requirements and competition forces OEMs to strike a good balance between a vehicle's fuel economy, power and space which are closely interrelated. In this article, PSFI approach will be used to analyze the technical progress of domestic passenger vehicle automakers in the past 7 years from different car lines, and ERFC index will be used to analyze the balance strategies used by automakers from different origins. The study shows that in the last 7 years, domestic passenger vehicle companies saw technical progress much faster than other segments, but the progress was more about power and space improvement, rather than fuel economy.