Abstract
“Sailing Stop” which disengages clutches and stops fuel supplies during running is studied for improving fuel economy. We are developing the technology that combines "Sailing Stop" and ACC (Adaptive cruise control) to stop engine at appropriate timing and operate engine at high efficiency region automatically for improving fuel economy. In this system, it is necessary to operate engine at high efficiency region quickly for demanded driving force. In this paper, we propose a new engine and transmission control method based on predicted driving force. The experimental results show that the efficiency at acceleration was improved and fuel consumption was reduced by 9.1～31.3% at 40～60km/h.
