WORKING VEHICLE AND MANUFACTURING METHOD FOR WORKING VEHICLE

Title:

WORKING VEHICLE AND MANUFACTURING METHOD FOR WORKING VEHICLE

Document Type and Number:

WIPO Patent Application WO/2020/255893

Kind Code:

A1

Abstract:

This working vehicle is provided with: a power transmission device which transmits power received by an input axis to an output axis through a clutch mechanism; a back and forth progress operation device which is operated for changing a forward moving state, a neutral state, and a backward moving state of a traveling device; and a control device. The control device includes: an operation signal acquisition unit which acquires an operation signal generated by an operation of the back and forth progress operation device; a torque reduction command unit which, in a state where a first clutch among a plurality of clutches of the clutch mechanism is engaged, outputs a torque reduction command for reducing a torque of the output axis in the engagement state of the first clutch before a specified time elapses from a time point at which an operation signal for changing to the neutral state is acquired; a clutch control unit which outputs an opening command for opening the first clutch after the elapse of the specified time; and a power control unit which, in a state where the first clutch is open, outputs a control command for controlling the power transmission device so that the rpms of an input side element of a second clutch to be engaged next matches the rpms of an output side element of the second clutch.

Inventors:

IKEDA HIROAKI (JP)
KAWAKITA SHINYA (JP)

Application Number:

PCT/JP2020/023274

Publication Date:

December 24, 2020

Filing Date:

June 12, 2020

Export Citation:

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Assignee:

KOMATSU MFG CO LTD (JP)

International Classes:

F16H59/08; F16H47/04; F16H61/02; F16H61/438; F16H61/439

Domestic Patent References:

WO2015093162A1

2015-06-25

Foreign References:

JP2015116841A	2015-06-25
JP2011027166A	2011-02-10

Other References: