Title:
WORK VEHICLE
Document Type and Number:
WIPO Patent Application WO/2021/054391
Kind Code:
A1
Abstract:
The present invention makes it possible to easily stabilize the behavior of a continuously variable transmission device (50). A work vehicle (1) comprises: a vehicle body (3) provided with a travel device (7); a hydraulic pump (33) having a swash plate that changes the output of the hydraulic pump in accordance with the swash plate angle; a travel motor (M1) that has an output shaft, where the rotational speed of the output shaft varies depending on the output of the hydraulic pump (33), and the power of the output shaft can be transferred to the travel device (7); an angle detecting device (122) that detects the swash plate angle, which is the angle of the swash plate; and a swash plate control unit (120A) that controls the swash plate angle on the basis of control information related to the swash plate control and the actual swash plate angle (θ2) that is the swash plate angle detected by the angle detecting device (122).
Inventors:
GONO TSUYOSHI (JP)
NIHEI NAOYA (JP)
HIRASE YUJI (JP)
TAKEOKA SUSUMU (JP)
TAKAHASHI KEIJI (JP)
NIHEI NAOYA (JP)
HIRASE YUJI (JP)
TAKEOKA SUSUMU (JP)
TAKAHASHI KEIJI (JP)
Application Number:
PCT/JP2020/035234
Publication Date:
March 25, 2021
Filing Date:
September 17, 2020
Export Citation:
Assignee:
KUBOTA KK (JP)
International Classes:
F16H47/04; F16H59/54; F16H61/02; F16H61/42
Domestic Patent References:
| WO2007010743A1 | 2007-01-25 |
Foreign References:
| JP2003130177A | 2003-05-08 | |||
| JP2009243430A | 2009-10-22 | |||
| JP2009257391A | 2009-11-05 | |||
| JP2012184853A | 2012-09-27 | |||
| JP2019095058A | 2019-06-20 |
Other References:
See also references of EP 4033124A4
Attorney, Agent or Firm:
YASUDA & OKAMOTO PATENT ATTORNEYS (JP)
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