PROBLEM TO BE SOLVED: To provide a work vehicle in which operations of an opening/closing mechanism opened/closed by a hydraulic cylinder can be automatically made to become proper.SOLUTION: A work vehicle comprises: a hydraulic circuit 40 capable of supplying a work oil through an external port 42； and a vehicle controller 7 capable of communicating with an implement 3 connected to the work vehicle 1. The vehicle controller 7 determines (ST21, ST22) whether or not the connected implement 3 is the implement comprising the opening/closing mechanism capable of being opened/closed by the hydraulic cylinder 33 and the implement being a control object in which the work oil is supplied to the hydraulic cylinder 33 through the external port 42, on the basis of the communication result with the implement 3, if it is determined that the connected implement 3 is the control object, determines (ST23) whether or not the supply amount of the work oil is insufficient to a required amount required for the opening/closing operations of the opening/closing mechanism, then, if it is determined that the supply amount of the work oil is insufficient and opening/closing operations were performed, increases (ST25) the supply amount of the work oil.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2020,JPO&INPIT【課題】油圧シリンダにより開閉する開閉機構の動作を自動で適正化した作業車両を提供する。【解決手段】外部ポート４２を介して作業油を供給可能な油圧回路４０と、作業車両１に接続された作業機３と通信可能に構成された車両コントローラ７と、を有する。車両コントローラ７は、接続されている作業機３が油圧シリンダ３３により開閉可能な開閉機構を有し且つ外部ポート４２を介して油圧シリンダ３３に作業油が供給される制御対象の作業機であるか否かを作業機３との通信結果に基づいて判定し（ＳＴ２１，２２）、接続されている作業機３が制御対象の作業機３であると判定した場合に、作業油の供給量が開閉機構の開閉動作に必要な量に対して不足しているか否かを判定し（ＳＴ２３）、作業油の供給量が不足していると判定し、開閉操作がなされたと判定した場合に、作業油の供給量を増大させる（ＳＴ２５）。【選択図】図５
