TRAVEL CONTROL APPARATUS

PROBLEM TO BE SOLVED: To automatically adjust the speed during a travel at a curve, reducing a load on a driver.SOLUTION: When a vehicle itself 60 is operated automatically so as to travel at a first target speed V1, the vehicle itself 60 is controlled so as to detect a curvature radius Rc of a curve 66 that is located forward in a road 64 and calculate a second target speed V2 in traveling at the curve 66 on the basis of a standard acceleration A0 predetermined as a standard value of lateral acceleration exerted the vehicle itself 60 during the curve travel and the detected curvature radius Rc. The vehicle itself 60 is also controlled so as to travel at the second target speed V2 or slower before passing the curve 66.SELECTED DRAWING: Figure 2 【課題】カーブ走行中の速度調整を自動的に行い運転者の負担軽減を図る。【解決手段】第１の目標車速Ｖ１で走行するように自車両６０を自動走行させる場合、道路６４の前方に位置するカーブ６６の曲率半径Ｒｃを検出し、カーブの走行中に自車両６０に加わる横加速度の標準値として予め定められた標準加速度Ａ０と、検出された曲率半径Ｒｃとに基いて、カーブ６６を走行する際の第２の目標車速Ｖ２を算出し、カーブ６６を通過する前に、自車両６０が第２の目標車速Ｖ２以下で走行するように自車両６０を制御するようにした。【選択図】図２