| 摘要 |
PROBLEM TO BE SOLVED: To improve fuel economy by elongating a time at which an accelerator operation is turned off as much as possible.SOLUTION: A target vehicle speed Va when passing a passing point Pa in front of a course of an own vehicle is set, inertia traveling which is performed by the turn-off of an accelerator operation is assumed, and a vehicle speed transition Vi at which a vehicle speed is lowered according to a moving distance is estimated. A vehicle speed threshold Vth which coincides with a target vehicle speed Va at arrival to the passing point Pa, and is lowered along the vehicle speed transition Vi as approximating the passing point Pa is set. Then, when the vehicle speed is higher than the vehicle speed threshold Vth when approximating the passing point Pa, and the accelerator operation is turned on, a driver is urged to turn off the accelerator operation.SELECTED DRAWING: Figure 1 |
