Title:
ENGINE CONTROL DEVICE AND ENGINE
Document Type and Number:
WIPO Patent Application WO/2015/186352
Kind Code:
A1
Abstract:
An ECU of an engine performs control to keep an engine rotation speed constant when a load factor is equal to or less than a predetermined value, and to reduce and correct the engine rotation speed in accordance with an increase in the load factor when the load factor exceeds the predetermined value. The ECU is provided with a reference droop control correction amount calculation unit (36), a correction amount adjustment map storage unit, and a post-adjustment correction amount calculation unit (38). The reference droop control correction amount calculation unit (36) obtains a rotation speed reference reduction correction amount NBD that is increased at a constant rate in accordance with the increase in the load factor from the predetermined value. The correction amount adjustment map storage unit stores, as a correction amount adjustment map (111), a subtraction factor that varies depending on the load factor. On the basis of the rotation speed reference reduction correction amount NBD and the subtraction factor, the post-adjustment correction amount calculation unit (38) calculates a rotation speed reduction correction amount ND as an amount by which the engine rotation speed is reduced and corrected in accordance with the increase in the load factor when the load factor exceeds the predetermined value.
Inventors:
HORI DAIKI (JP)
YUKI HIDEHIRO (JP)
YUKI HIDEHIRO (JP)
Application Number:
PCT/JP2015/002787
Publication Date:
December 10, 2015
Filing Date:
June 02, 2015
Export Citation:
Assignee:
YANMAR CO LTD (JP)
International Classes:
F02D45/00; F02D41/38
Foreign References:
| JP2000110635A | 2000-04-18 | |||
| JP2011094575A | 2011-05-12 | |||
| JP2002285884A | 2002-10-03 |
Other References:
See also references of EP 3153688A4
Attorney, Agent or Firm:
KATSURAGAWA, Naoki (JP)
Naoki Katsuragawa (JP)
Naoki Katsuragawa (JP)
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