Title:
WORK VEHICLE, AND METHOD OF CONTROLLING WORK VEHICLE
Document Type and Number:
WIPO Patent Application WO/2015/093240
Kind Code:
A1
Abstract:
A power transmission device includes a first clutch and a second clutch for switching a driving force transmission route. A work vehicle is provided with a clutch control unit and an engine control unit. The clutch control unit, on the basis of whether a speed ratio parameter is greater or smaller than a mode switching threshold value, determines whether the transmission route should be in first mode or second mode, and outputs a clutch command signal for connecting the clutch corresponding to the determined mode. The engine control unit, after the switching to the determined mode, adds an offset to an input shaft rotation speed so that the speed ratio parameter is offset from the mode switching threshold value in the switched mode. Before and after the addition of the offset to the input shaft rotation speed by the engine control unit, an engine output horsepower is maintained.
Inventors:
MONDEN HIROSHI (JP)
NOHARA TATSURO (US)
MIYAZAKI SHOGO (JP)
NOHARA TATSURO (US)
MIYAZAKI SHOGO (JP)
Application Number:
PCT/JP2014/081108
Publication Date:
June 25, 2015
Filing Date:
November 25, 2014
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
International Classes:
B60W10/10; B60K6/36; B60K6/445; B60L50/15; B60L50/16; B60W10/02; B60W10/04; B60W10/06; B60W10/08; B60W20/00; E02F9/22; F02D29/00; F16H3/66; F16H3/72; F16H61/10
Foreign References:
| JP2006329244A | 2006-12-07 | |||
| JP2013537962A | 2013-10-07 | |||
| JP2006329244A | 2006-12-07 |
Other References:
See also references of EP 2974931A4
Attorney, Agent or Firm:
Shinjyu Global IP (JP)
fresh green -- a global IP patent business corporation (JP)
fresh green -- a global IP patent business corporation (JP)
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