TRAVELING VEHICLE

PROBLEM TO BE SOLVED: To satisfy a requirement that it is preferable to reduce fuel remaining in a fuel supply path with respect to an engine and a combustion chamber of the engine in an unburnt state.SOLUTION: A traveling vehicle comprises: an engine E for driving a vehicle to travel; a manual operation type accelerator operation implement 7; and a traveling control part 20 for performing normal processing for controlling an output of the engine E so that the output reaches an output corresponding to an operation amount of the accelerator operation implement 7 when a vehicle speed is lower than a set vehicle speed, and performing output suppression processing for suppressing the output of the engine E so that the vehicle speed and an output rotational speed of the engine become lower than set values irrespective of the operation amount of the accelerator operation implement 7 when the vehicle speed is not lower than the set vehicle speed. The traveling control part 20 changes and sets an air-fuel ratio to a value in which a percentage of fuel is low compared with the case that the normal processing is performed when performing the output suppression processing.SELECTED DRAWING: Figure 3 【課題】エンジンに対する燃料供給経路やエンジンの燃焼室の内部等に未燃状態で残る燃料の量を減らすことが望まれていた。【解決手段】車体を走行駆動するエンジンＥと、人為操作式のアクセル操作具７と、車速が設定車速未満であるときは、アクセル操作具７の操作量に応じた出力となるように、エンジンＥの出力を制御する通常処理を実行し、車速が設定車速以上であるときは、アクセル操作具７の操作量にかかわらず、車速とエンジンの出力回転速度が設定未満になるように、エンジンＥの出力を抑制する出力抑制処理を実行する走行制御部２０とを備え、走行制御部２０は、出力抑制処理を実行する場合には、通常処理を実行する場合に比べて、燃料の割合が少ない空燃比に変更設定する。【選択図】図３