Invention Grant
- Patent Title: Work vehicle and method for controlling work vehicle
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Application No.: US15556137Application Date: 2016-10-26
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Publication No.: US10266200B2Publication Date: 2019-04-23
- Inventor: Yuita Takenaka , Masanobu Nakabayashi , Masanori Ikari
- Applicant: KOMATSU LTD.
- Applicant Address: JP Tokyo
- Assignee: KOMATSU LTD.
- Current Assignee: KOMATSU LTD.
- Current Assignee Address: JP Tokyo
- Agency: Global IP Counselors, LLP
- Priority: JP2015-213788 20151030
- International Application: PCT/JP2016/081728 WO 20161026
- International Announcement: WO2017/073612 WO 20170504
- Main IPC: B62D5/09
- IPC: B62D5/09 ; B62D5/06 ; B62D12/00 ; B62D1/12 ; B62D6/00 ; B62D15/02 ; E02F9/22 ; E02F9/08 ; E02F9/20 ; B62D5/04 ; B62D5/083

Abstract:
An articulated work vehicle with linked front and rear frames includes a hydraulic actuator, a joystick lever operated by an operator, a control valve, a force imparting component, and a controller. The hydraulic actuator is driven hydraulically to change a steering angle of the front frame with respect to the rear frame. The control valve is linked to the joystick lever, to control flow of fluid supplied to the hydraulic actuator according to an operation amount of the joystick lever, and to restrict the operation amount of the joystick lever to a predetermined range. The force imparting component imparts an assist force or a counterforce to the operation of the joystick lever by the operator. The controller controls the force imparting component so as to decrease the assist force or increase the counterforce before the operation of the joystick lever is restricted by the control valve.
Public/Granted literature
- US20180043929A1 WORK VEHICLE AND METHOD FOR CONTROLLING WORK VEHICLE Public/Granted day:2018-02-15
Information query
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