Title:
WORK VEHICLE, AND WORK VEHICLE CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2015/114979
Kind Code:
A1
Abstract:
Provided is a hybrid type work vehicle having excellent fuel economy performance. The work vehicle includes a power transmission device, a forward/backward travel switch operation device, a vehicle speed detection unit, and a control unit. The power transmission device includes a generator, a motor, and an energy storage unit. The energy storage unit stores electricity generated by the generator. The forward/backward travel switch operation device receives an instruction for forward or backward travel from an operator. The vehicle speed detection unit detects the speed of the vehicle. The control unit, which controls the power transmission device, includes an energy management demand determination unit. The energy management demand determination unit determines, on the basis of the difference between a target electricity storage amount and a current electricity storage amount in the energy storage unit, the energy management demand power required by the power transmission device for charging the energy storage unit. The energy management demand determination unit increases the target electricity storage amount when a first travel direction according to the instruction from the operator and a second travel direction determined from the vehicle speed are different.
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Inventors:
MIYAMOTO SHUNSUKE (JP)
OHKURA YASUNORI (JP)
OHKURA YASUNORI (JP)
Application Number:
PCT/JP2014/083431
Publication Date:
August 06, 2015
Filing Date:
December 17, 2014
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
International Classes:
B60W10/26; B60K6/365; B60K6/48; B60K6/543; B60L11/18; B60L50/16; B60W10/08; B60W10/10; B60W20/00; E02F9/20; F16H3/66; F16H3/72
Domestic Patent References:
| WO2013084682A1 | 2013-06-13 |
Foreign References:
| JP2006329244A | 2006-12-07 | |||
| JP2006136131A | 2006-05-25 | |||
| JP2012090404A | 2012-05-10 | |||
| JP2006329244A | 2006-12-07 | |||
| JP2002359935A | 2002-12-13 |
Other References:
See also references of EP 3053797A4
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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