Fuel injection control device, engine and straddle type vehicle

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(11)

EP 2 093 404 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	13.06.2012 Bulletin 2012/24

(43)	Date of publication A2:
	26.08.2009 Bulletin 2009/35

(21)	Application number: 09004419.9

(22)	Date of filing: 19.02.2008

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International Patent Classification (IPC):

F02D 41/30^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA MK RS

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Priority:

20.02.2007 JP 2007039260

(62)	Application number of the earlier application in accordance with Art. 76 EPC:
	08250576.9 / 1975397

(71)	Applicant: Yamaha Hatsudoki Kabushiki Kaisha
	Shizuoka-ken Shizuoka 438-8501 (JP)

(72)	Inventors:
	Iwashiro, Yuki Iwata-shi Shizuoka-ken 438-8501 (JP) Miyazawa, Kazuo Iwata-shi Shizuoka-ken 438-8501 (JP)

(74)	Representative: Schoppe, Fritz et al
	Schoppe, Zimmermann, Stöckeler & Zinkler Patentanwälte Postfach 246 82043 Pullach bei München 82043 Pullach bei München (DE)

(54)	Fuel injection control device, engine and straddle type vehicle

(57) A fuel injection control device provides improvements in engine output, fuel efficiency and throttle response while reducing smoke emissions. If a throttle opening exceeds a prescribed value (a) and an engine load is in a prescribed high load range, an in-pipe injection by an in-pipe injector is used together in addition to an in-cylinder injection by an in-cylinder injector. In a low load range, in which an engine load is smaller than in the high load range, only the in-cylinder injection by the in-cylinder injector is used.

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