JP2012237321A5 - - Google Patents

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Publication number
JP2012237321A5
JP2012237321A5 JP2012201296A JP2012201296A JP2012237321A5 JP 2012237321 A5 JP2012237321 A5 JP 2012237321A5 JP 2012201296 A JP2012201296 A JP 2012201296A JP 2012201296 A JP2012201296 A JP 2012201296A JP 2012237321 A5 JP2012237321 A5 JP 2012237321A5
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JP
Japan
Prior art keywords
fuel
fuel pump
increased
internal combustion
combustion engine
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JP2012201296A
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Japanese (ja)
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JP5475079B2 (en
JP2012237321A (en
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Priority claimed from JP2012201296A external-priority patent/JP5475079B2/en
Publication of JP2012237321A publication Critical patent/JP2012237321A/en
Publication of JP2012237321A5 publication Critical patent/JP2012237321A5/ja
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Publication of JP5475079B2 publication Critical patent/JP5475079B2/en
Expired - Fee Related legal-status Critical Current
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Description

高燃料圧力の要求に応じて前記燃料ポンプの駆動量を大きくする運転領域において、機関回転速度及び車速の少なくとも一方が低速域のときは高速域のときより、前記駆動周波数を大きくする。 In an operation region where the drive amount of the fuel pump is increased in response to a request for high fuel pressure, the drive frequency is increased when at least one of the engine rotational speed and the vehicle speed is in the low speed region than in the high speed region .

Claims (3)

駆動周波数を可変なＰＷＭ信号により駆動される電動式燃料ポンプによって燃料噴射弁へ燃料を供給し、かつ、前記燃料ポンプの駆動量を調整して燃料圧力を可変に制御する内燃機関の燃料ポンプ駆動制御装置であって、
高燃料圧力の要求に応じて前記燃料ポンプの駆動量を大きくする運転領域において、機関回転速度及び車速の少なくとも一方が低速域のときは高速域のときより、前記駆動周波数を大きくすることを特徴とする内燃機関の燃料ポンプ駆動制御装置。 A fuel pump drive for an internal combustion engine in which fuel is supplied to a fuel injection valve by an electric fuel pump driven by a PWM signal whose drive frequency is variable, and the fuel pressure is variably controlled by adjusting the drive amount of the fuel pump A control device,
In the operation region in which the drive amount of the fuel pump is increased in response to a request for high fuel pressure, the drive frequency is increased when at least one of the engine rotational speed and the vehicle speed is in the low speed region than in the high speed region. A fuel pump drive control device for an internal combustion engine. 前記内燃機関を搭載する車両の発進時に、前記駆動周波数を大きくすることを特徴とする請求項１に記載の内燃機関の燃料ポンプ駆動制御装置。2. The fuel pump drive control device for an internal combustion engine according to claim 1, wherein the drive frequency is increased when a vehicle on which the internal combustion engine is mounted is started. 3. 機関回転低速時に、燃料圧力を増大して前記燃料噴射弁から噴射される燃料を微粒化するときに、前記駆動周波数を大きくすることを特徴とする請求項１又は請求項２に記載の内燃機関の燃料ポンプ駆動制御装置。3. The internal combustion engine according to claim 1, wherein the driving frequency is increased when the fuel pressure is increased to atomize the fuel injected from the fuel injection valve at a low engine rotation speed. 4. Fuel pump drive control device.
JP2012201296A 2012-09-13 2012-09-13 Fuel pump drive control device for internal combustion engine Expired - Fee Related JP5475079B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012201296A JP5475079B2 (en) 2012-09-13 2012-09-13 Fuel pump drive control device for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012201296A JP5475079B2 (en) 2012-09-13 2012-09-13 Fuel pump drive control device for internal combustion engine

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2009070385A Division JP5091178B2 (en) 2009-03-23 2009-03-23 Fuel pump drive control device for internal combustion engine

Publications (3)

Publication Number Publication Date
JP2012237321A JP2012237321A (en) 2012-12-06
JP2012237321A5 true JP2012237321A5 (en) 2013-03-28
JP5475079B2 JP5475079B2 (en) 2014-04-16

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Family Applications (1)

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JP2012201296A Expired - Fee Related JP5475079B2 (en) 2012-09-13 2012-09-13 Fuel pump drive control device for internal combustion engine

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JP (1) JP5475079B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015229933A (en) * 2014-06-03 2015-12-21 株式会社ミクニ Fuel pump control unit
JP6206343B2 (en) * 2014-06-26 2017-10-04 トヨタ自動車株式会社 Fuel supply device for internal combustion engine
CN104500464B (en) * 2014-11-17 2016-08-17 石家庄铁道大学 Grouting pump flow and the method for ratio flow control
KR101813817B1 (en) 2016-12-30 2018-01-30 주식회사 현대케피코 Pressure control system for fuel rail in diesel engine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005043817A1 (en) * 2005-09-13 2007-03-22 Siemens Ag Method for operating a fuel pump
JP2008232099A (en) * 2007-03-23 2008-10-02 Aisan Ind Co Ltd Fluid pump control device

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