PROBLEM TO BE SOLVED: To provide a down-hill speed control device for a vehicle that prevents unintended change of a target vehicle speed, even in a case where an erroneous operation of an accelerator or brake or a temporary accelerator operation or brake operation corresponding to a change in a road surface situation is performed, during down-hill speed control.SOLUTION: In a case where a permission switch 19 is not operated, even when an accelerator pedal 12 or a brake pedal 9 is operated during down-hill speed control, a change of target vehicle speed Vtgt is inhibited, and an original target vehicle speed Vtgt is maintained. On the other hand, when the accelerator pedal 12 or the brake pedal 9 is operated and the permission switch 19 is operated, it is determined whether an accelerator pedal operation amount θacc or brake pedal operation amount θbrk does not reach a prescribed amount θ0 and the operation is ended in less than a prescribed time T0. When a determination result is No, the target vehicle speed Vtgt is changed to a vehicle speed V at a point of time when the pedal operation is stopped or at a point of time when the operation of the permission switch 19 is stopped. When a determination result is Yes, the target vehicle speed Vtgt is gradually increased or decreased by a prescribed amount at a time.SELECTED DRAWING: Figure 2
【課題】降坂速度制御中において、アクセルやブレーキの誤操作や路面状況の変化に対応する一時的なアクセルやブレーキ操作が行われた場合であっても、意図しない目標車速の変更を未然に防止できる車両の降坂速度制御装置を提供する。【解決手段】降坂速度制御中においてアクセルまたはブレーキペダル12,9が操作されたとしても許可スイッチ19が操作されない場合には、目標車速Vtgtの変更を禁止し、元の目標車速Vtgtを維持する。一方、アクセルまたはブレーキペダル12,9が操作され、且つ許可スイッチ19が操作されたときには、ペダル操作量θacc,θbrkが所定操作量θ0に達することなく所定時間T0未満で終了したか否かを判定し、Noのときにはペダル操作の中止時点または許可スイッチ19の操作の中止時点での車速Vに目標車速Vtgtを変更し、Yesのときには目標車速Vtgtを所定量づつ増加または低下させる。【選択図】図2
DOWN-HILL SPEED CONTROL DEVICE FOR VEHICLE
車両の降坂速度制御装置
2017-12-14
Patent
Electronic Resource
Japanese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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