The Research of Cylinder Deactivation Technology on Gasoline Engine

With the development of auto technology, efficiency and environmentally friendly technology is more and more attention by all OEM. This paper has made a brief description about cylinder deactivation (CDA) technology. In the development, it can rapidly design by the CAE simulation and provide the guide of experiment. The cylinder deactivation technology can improve fuel economy at light load. It applies to a four-cylinder engine for fuel economy test of CDA. The cylinder deactivation technology control strategy which should meet the requirements of performance, fuel economy and emission. Meanwhile, it’s sensitivity to NVH that calculating the fuel economy with and without cylinder deactivation in the various operating modes: warm-up after cold start, idle, and low engine speed, All speculations are based on engine dynamometer data and combined with a series of computer simulation of various test cycles.