Title:
The control method of a work vehicle and a work vehicle
Document Type and Number:
Japanese Patent JP6271270
Kind Code:
B2
Abstract:
Proposed is a hybrid work vehicle that increases the limiting vehicle speed, and a method of controlling a work vehicle. A work vehicle is equipped with a power transmission device and a controller. The power transmission device includes a mode switching mechanism. The mode switching mechanism is configured to switch a drive power transmission route in the power transmission device to one mode of at least two modes. The at least two modes include a first mode, and a second mode used in a range with the higher transmission speed ratio than the first mode. The controller increases the rotation speed of the engine from a first rotation speed for the engine corresponding to a first vehicle speed when the vehicle speed is within a range greater than the first vehicle speed where the transmission speed ratio reaches a predetermined first value that is less than the maximum value of the transmission speed ratio obtainable by the power transmission device. When the transmission route is in the second mode, the first value is greater than a second value of the transmission speed ratio at which the rotation speeds of the first motor and the second motor are equal.
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Inventors:
Shunsuke Miyamoto
Masao Yoshizawa
Yasuo Fujiwara
Masao Yoshizawa
Yasuo Fujiwara
Application Number:
JP2014016828A
Publication Date:
January 31, 2018
Filing Date:
January 31, 2014
Export Citation:
Assignee:
KOMATSU LTD.
International Classes:
F16H61/02; B60K6/365; B60K6/445; B60W10/06; B60W10/08; B60W10/10; B60W20/00; E02F9/20; E02F9/22; F02D29/00; F16H3/44; F16H3/72; F16H59/18; F16H59/40; F16H59/42; F16H59/44; F16H61/682
Domestic Patent References:
| JP2010132020A | ||||
| JP2012106636A | ||||
| JP2010070008A | ||||
| JP2007069632A | ||||
| JP2011183990A | ||||
| JP2009280176A | ||||
| JP2008120132A | ||||
| JP2006329244A |
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation