Invention Grant
- Patent Title: Work vehicle and control method for work vehicle
- Patent Title (中): 工作车辆和工作车辆的控制方法
-
Application No.: US13699254Application Date: 2012-05-09
-
Publication No.: US08701818B2Publication Date: 2014-04-22
- Inventor: Atsushi Shirao , Shigeo Hashimoto
- Applicant: Atsushi Shirao , Shigeo Hashimoto
- Applicant Address: JP Tokyo
- Assignee: Komatsu Ltd.
- Current Assignee: Komatsu Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Global IP Counselors, LLP
- Priority: JP2012-075600 20120329
- International Application: PCT/JP2012/061878 WO 20120509
- International Announcement: WO2013/145337 WO 20131003
- Main IPC: E02F9/22
- IPC: E02F9/22

Abstract:
A working vehicle includes an engine, a hydraulic pump, a first hydraulic motor, a vehicle speed detecting unit, a parking brake, a parking brake operating member and a control unit. The control unit is configured to determine whether the vehicle speed is equal to or greater than a predetermined threshold when the parking brake operating member is operated. The control unit is configured to execute a brake control that decreases a displacement of the first hydraulic pump and increases a displacement of the first hydraulic motor without activating the parking brake when the vehicle speed is equal to or greater than the predetermined threshold in a state when the vehicle is traveling, and to activate the parking brake when the vehicle speed falls below the predetermined threshold.
Public/Granted literature
- US20130256053A1 WORK VEHICLE AND CONTROL METHOD FOR WORK VEHICLE Public/Granted day:2013-10-03
Information query