Title:
WORK VEHICLE
Document Type and Number:
WIPO Patent Application WO/2019/234993
Kind Code:
A1
Abstract:
An operation unit (25) in a wheel loader (1) comprises a joystick lever (51), a support section (42), a base plate (71), a biasing section (44), and a position adjustment section (45). The biasing section (44) biases the joystick (51) toward a predetermined position with respect to the base plate (71). The position adjustment section (45) adjusts the rotation angle of the base plate (71) with respect to the support section (42). An absolute lever angle sensor (26), a base plate angle sensor (101), and a second calculation unit (114) detect a detected value θd_detect for the relative lever angle of the joystick lever (51) with respect to the base plate (71). A motor drive control unit (110) sets torque on the basis of the detected value θd_detect for the relative lever angle and uses the torque to control the position adjustment section (45) on the basis of a detected value θs_detect for a vehicle body frame angle.
Inventors:
TERANISHI YUICHI (JP)
Application Number:
PCT/JP2019/006346
Publication Date:
December 12, 2019
Filing Date:
February 20, 2019
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
International Classes:
B62D1/12; B62D5/06; B62D5/28; B62D6/00; B62D101/00; B62D113/00; B62D115/00
Domestic Patent References:
| WO2017073614A1 | 2017-05-04 |
Foreign References:
| JP2009227045A | 2009-10-08 | |||
| JP2017035959A | 2017-02-16 | |||
| JP2009101937A | 2009-05-14 | |||
| JP2012040948A | 2012-03-01 | |||
| JP2009517746A | 2009-04-30 | |||
| JP2006168515A | 2006-06-29 | |||
| JP2002160642A | 2002-06-04 |
Other References:
See also references of EP 3712034A4
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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