PROBLEM TO BE SOLVED: To provide a fuel saving control device and a fuel saving control method, capable of preventing slow-down after a vehicle starts to climb a slope road and improving convenience of a driver while fuel saving performance of the vehicle is maintained.SOLUTION: A fuel saving control device 100 includes: a margin driving force calculation section 101 for calculating margin driving force; a fuel saving control section 102 for executing fuel saving control for performing downward correction of instruction fuel injection amount corresponding to an accelerator opening when the margin driving force reaches a predetermined threshold value or more, and for stopping the fuel saving control when the margin driving force reaches less than the predetermined threshold value; a vehicle position detection section 107 for detecting a vehicle position; a map information storage section 108 for storing map information; a shift-down operation detection section 109 for detecting shift-down operation; and a forward gradient identification section 110 for identifying a forward gradient on the basis of the vehicle position and the map information. When the forward gradient is an up-hill gradient that is a predetermined threshold value or more and the shift-down operation is detected, the fuel saving control section 102 stops the fuel saving control.SELECTED DRAWING: Figure 1
【課題】登坂走行を開始した後に失速し難く、車両の省燃費性能を維持したまま運転者の利便性を改善することができる省燃費制御装置及び省燃費制御方法を提供する。【解決手段】省燃費制御装置100は、余裕駆動力を演算する余裕駆動力演算部101と、余裕駆動力が所定の閾値以上になった時にアクセル開度に応じた指示燃料噴射量を下降補正する省燃費制御を実行し、余裕駆動力が所定の閾値未満になった時に省燃費制御を停止する省燃費制御部102と、車両位置を検出する車両位置検出部107と、地図情報を格納する地図情報格納部108と、シフトダウン操作を検出するシフトダウン操作検出部109と、車両位置と地図情報とに基づいて前方勾配を特定する前方勾配特定部110と、を備え、省燃費制御部102は、前方勾配が所定の閾値以上の上り勾配であると共にシフトダウン操作を検出した時は省燃費制御を停止する。【選択図】図1
FUEL SAVING CONTROL DEVICE AND FUEL SAVING CONTROL METHOD
省燃費制御装置及び省燃費制御方法
2018-04-19
Patent
Electronic Resource
Japanese
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