Title:
WORK VEHICLE, AND CONTROL DEVICE AND CONTROL METHOD FOR WORK VEHICLE
Document Type and Number:
WIPO Patent Application WO/2020/105512
Kind Code:
A1
Abstract:
In the present invention, a required output torque determination unit determines required output torque of a power transmission device on the basis of the manipulated variable of an operating device and the traveling speed of a work vehicle. A traveling load estimation unit estimates the traveling load torque pertaining to the traveling load of the work vehicle, on the basis of the torque of the power source, the engine speed ratio of the power transmission device, and the rotational speed of an output shaft. A required output torque correction unit corrects the required output torque in such a manner that the required output torque falls within a permitted output torque range which includes estimated traveling load torque. A power source control unit outputs a control signal for the power source on the basis of the required output torque which has been corrected.
Inventors:
YAMADA KENICHI (JP)
MIYAZAKI SHOGO (JP)
MIYAZAKI SHOGO (JP)
Application Number:
PCT/JP2019/044354
Publication Date:
May 28, 2020
Filing Date:
November 12, 2019
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
International Classes:
B60W10/30; B60W10/04; B60W10/06; B60W10/103; F02D29/00; F16H59/16; F16H59/18; F16H59/40; F16H59/42; F16H61/66; F16H63/50
Domestic Patent References:
| WO2012114782A1 | 2012-08-30 | |||
| WO2014208614A1 | 2014-12-31 |
Foreign References:
| JP2011245948A | 2011-12-08 | |||
| EP3093400A1 | 2016-11-16 | |||
| JP2013166482A | 2013-08-29 | |||
| JP2018216735A | 2018-11-19 |
Other References:
See also references of EP 3858692A4
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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