Title:
PADDY FIELD WORKING VEHICLE
Document Type and Number:
WIPO Patent Application WO/2018/180919
Kind Code:
A1
Abstract:
The present invention detects vertical displacement of front wheels and performs raising/lowering control and horizontal control of a transplanter according to changes in the vertical displacement so as to enable further improvement of transplantation accuracy. The present invention comprises: a traveling part 2 that is supported by front wheels 6, 6 and rear wheels 7, 7; a transplanter 20 that is supported on the traveling part such that the transplanter can be raised and lowered; a raising/lowering control part 60a that controls the raising/lowering of the transplanter 20; a float sensor 63 that is provided to a float 27 of the transplanter 20 and that detects raising/lowering displacement of the float 27; a suspension sensor 61 that detects extension/contraction displacement of a suspension mechanism provided to the front wheels 6, 6; and a tilt sensor 62 that is provided to the traveling part 2 and that detects tilting in the front-rear direction of a machine body. A gain map corresponding to the relationship between a detection value from the tilt sensor 62 and a detection value from the suspension sensor 61 is stored in a storage part 66 of the raising/lowering control part 60a, and the raising/lowering control part 60a acquires a control quantity on the basis of a gain g obtained from the gain map in order to perform raising/lowering control.
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Inventors:
MIYAKE KOJI (JP)
Application Number:
PCT/JP2018/011506
Publication Date:
October 04, 2018
Filing Date:
March 22, 2018
Export Citation:
Assignee:
YANMAR CO LTD (JP)
International Classes:
A01C11/02; A01B63/10
Foreign References:
| JP2015123046A | 2015-07-06 | |||
| JP2000232808A | 2000-08-29 | |||
| JP2003245033A | 2003-09-02 | |||
| JP2007124905A | 2007-05-24 | |||
| JP2007129918A | 2007-05-31 | |||
| JP2007129998A | 2007-05-31 | |||
| JP2010035422A | 2010-02-18 | |||
| JP2012235699A | 2012-12-06 |
Attorney, Agent or Firm:
YANO INTERNATIONAL PATENT ATTORNEYS OFFICE, P.C. (JP)
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