Electronic control unit for vehicle, has estimation unit estimating that vehicle is in fuel saving driving according to variation in time of actual speed of vehicle after startup of vehicle and driving mode estimation line

摘要

The unit (50) has a memory e.g. read only memory, memorizing an driving mode estimation line that defines variations in time of speed of a vehicle according to a preset driving model of a fuel saving driving mode. An estimation unit estimates that the vehicle is in fuel saving driving according to variation in time of actual speed of the vehicle after the startup of the vehicle and the line, where the unit controls the operation of speed change of the vehicle by switching the fuel saving driving mode and a normal driving mode based on the fact that the vehicle is/not in fuel saving driving.