| 摘要 |
The present invention has an object to provide a fuel-saving driving system which gradually decreases a target vehicle speed from start of control to passage of a descending-slope starting point in a linear form and can obtain fuel-saving and smooth driving feeling without repeating fuel-cut and injection. The present invention has a vehicle-position specifying device (2) for specifying the position of a vehicle, a storage device (11) for storing data of a descending slope located in the vehicle traveling direction, a vehicle speed measuring device (3) for measuring a speed (Va) of the vehicle (1), and a controller (10), the controller (10) has a function of determining (calculating) a target speed (requested speed Vd) of the vehicle (1) from the vehicle speed (Va) and the data of the descending slope.
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