Title:
WORK VEHICLE
Document Type and Number:
WIPO Patent Application WO/2020/036035
Kind Code:
A1
Abstract:
A wheel loader (1) comprising steering cylinders (9a, 9b), a joystick lever (41), a hydraulic valve (31), and a controller (23). The steering cylinders (9a, 9b) are driven by hydraulic pressure and change the body frame angle (θs_real) of a front frame (11) relative to a rear frame (12). The joystick lever (41) is rotated in order to input a target value for the body frame angle (θs_real). The controller (23) sets a target body frame angle (θtarget) relative to the input angle (θi_real) of the joystick lever (41) and controls the hydraulic valve (31) such that the actual body frame angle (θs_real) matches the target body frame angle (θtarget). The absolute value for the target body frame angle (θtarget) corresponding to an absolute value for a lever input angle (θi_real) is at least partially larger than the absolute value for the lever input angle.
Inventors:
TERANISHI YUICHI (JP)
TAKENAKA YUITA (JP)
TAKENAKA YUITA (JP)
Application Number:
PCT/JP2019/027923
Publication Date:
February 20, 2020
Filing Date:
July 16, 2019
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
International Classes:
B62D5/28; B62D6/00; E02F9/20
Foreign References:
| JPH1045014A | 1998-02-17 | |||
| JP2007320538A | 2007-12-13 | |||
| JP2017213994A | 2017-12-07 | |||
| JP2010515150A | 2010-05-06 | |||
| JPH11321664A | 1999-11-24 |
Attorney, Agent or Firm:
SHINJYU GLOAL IP (JP)
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