Abstract

Fuel consumption of the engine becomes tolerably economical when it runs under operating conditions of low speed and high torque rather than of high speed and low torque. Therefore, if an automobile engine is operated by consolidated control with continuously variable transmission (CVT), the minimum fuel consumption is achieved, satisfying the driver's demanded vehicle speed. The effect of this consolidated control on fuel economy depends on several factors such as specification of the object automobile, range of the transmission gear ratio (Rm) of equipped CVT, and the driving mode of the automobile itself. In this report, Rm range and driving mode were focused on and their influence on fuel economy was investigated by simulation studies.

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