Problem to be solved: to provide an automatic rotation system, an automatic rotation system for automatically rotating and traveling to the next traveling position, and an automatic running system having the same, and an unmanned automatic traveling work vehicle at the rotational position of the vehicle at the root end of a vehicle or the like at different ends.The automatic rotation system of a running car for automatically rotating and running toward a ridge adjacent to the ridge at the end of the running direction of the ridge in a traveling vehicle traveling along the ridge;The end sensor of the end of the ridge and the end ridge of the adjacent ridge, andThe distance w between the ridges and the adjacent rows of the ridges and the lengths D of the adjacent ridges determined based on the information acquired by the distance sensorThe first rotation angle. Theta. At the running end of the running vehicleThe running distance L from the automatic rotation position to the next ridgeFurther, the present invention is characterized in that it comprises a calculation section for calculating a second rotation angle thgr; ′ to be directed to the first row at the end position of the adjacent ridge.The automatic rotation system of the car was constructed.Diagram【課題】走行車が農作物などの長さの異なる畝末端などにおける回転位置において、次の走行位置に小回りで自動回転、走行する、自動回転システム、方法、及びそれを備えた農作業用走行車、並びに無人自動走行作業車提供する。【解決手段】畝に沿って走行する走行車において、前記畝の走行方向末端の先で、前記畝の隣の畝に向け自動回転、走行する、走行車の自動回転システムであって、前記畝の末端及び前記隣の畝の末端感知する距離センサと、前記畝と前記隣の畝の距離Wと前記距離センサで取得した情報を元に求められた前記畝と前記隣の畝の長さの差Dから、前記走行車の前記走行方向末端での第一回転角度θ、前記自動回転の位置から前記隣の畝までの走行距離L、さらに前記隣の畝の末端位置での前記隣の畝に向けるための第二回転角度θ‘を算出する計算部とからなることを特徴とする、走行車の自動回転システムの構成とした。【選択図】図10