Invention Grant
US08463509B2 Working vehicle, control device for working vehicle, and control method for working vehicle 有权
工作车辆,工作车辆控制装置和工作车辆的控制方法

  • Patent Title: Working vehicle, control device for working vehicle, and control method for working vehicle
  • Patent Title (中): 工作车辆,工作车辆控制装置和工作车辆的控制方法
  • Application No.: US12736162
    Application Date: 2009-03-11
  • Publication No.: US08463509B2
    Publication Date: 2013-06-11
  • Inventor: Yoshiaki Saito
  • Applicant: Yoshiaki Saito
  • Applicant Address: JP Tokyo
  • Assignee: Komatsu Ltd.
  • Current Assignee: Komatsu Ltd.
  • Current Assignee Address: JP Tokyo
  • Agency: Posz Law Group, PLC
  • Priority: JP2008-072974 20080321
  • International Application: PCT/JP2009/001087 WO 20090311
  • International Announcement: WO2009/116248 WO 20090924
  • Main IPC: G06F7/70
  • IPC: G06F7/70
Working vehicle, control device for working vehicle, and control method for working vehicle
Abstract:
A working vehicle in which an output from an engine is distributed to a traveling system and a hydraulic device system includes a loading operation detection unit that detects whether a loading operation using a work equipment is being performed, a clutch contained in the traveling system and connected to a distributor, a maximum output characteristic control unit that selects a second engine maximum output characteristic from among first and second maximum output characteristics when it is detected that the loading operation is being performed, and a hydraulic oil amount control unit that decreases a clutch pressure of the clutch when it is detected that the loading operation is being performed. In the first engine maximum output characteristic, a maximum output torque in a predetermined engine revolution speed range is lower than that in the second engine maximum output characteristic.
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