PROBLEM TO BE SOLVED: To provide a tilling depth control system of a working vehicle in which the setting of the tilling depth is constituted to be remotely controlled, concerning the tilling depth control for keeping a fixed tilling depth.SOLUTION: A tilling depth control system of a working vehicle includes a working machine lifting/lowering control unit 132 having a tilling depth control mode for lifting and lowering a tilling machine based on a detection value from a tilling depth sensor 202 for detecting the tilling depth of the tilling machine mounted in a vehicle rear, and a communication unit 172 for transmitting and receiving a signal with a mobile terminal 173. The working machine control unit 132 sets a tilling depth reference value of the tilling depth control mode, based on the signal received by the communication unit 172 from the mobile terminal 173.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2018,JPO&INPIT【課題】耕耘深さを一定に保つ耕深制御について、耕耘深さの設定を遠隔操作可能に構成した作業車両の耕深制御システムを提供する。【解決手段】車両後部に装着した耕耘作業機の耕耘深さを検出する耕深センサ202からの検出値に基づいて、前記耕耘作業機を昇降させる耕深制御モードを有する作業機昇降制御部132と、モバイル端末173と信号の送受信を行う通信ユニット172とを備え、前記作業機制御部132は通信ユニット172がモバイル端末173から受信した信号に基づいて、前記耕深制御モードの耕深基準値を設定する。【選択図】図4
