US20130284127A1 - Engine cooling device - Google Patents

Engine cooling device Download PDF

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Publication number
US20130284127A1
US20130284127A1 US13/823,425 US201113823425A US2013284127A1 US 20130284127 A1 US20130284127 A1 US 20130284127A1 US 201113823425 A US201113823425 A US 201113823425A US 2013284127 A1 US2013284127 A1 US 2013284127A1
Authority
US
United States
Prior art keywords
engine
predetermined value
detected
cooling water
outside air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US13/823,425
Other languages
English (en)
Inventor
Tsugumasa Goto
Kenya Maruyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aisan Industry Co Ltd
Toyota Motor Corp
Original Assignee
Aisan Industry Co Ltd
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aisan Industry Co Ltd, Toyota Motor Corp filed Critical Aisan Industry Co Ltd
Assigned to AISAN KOGYO KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA reassignment AISAN KOGYO KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MARUYAMA, KENYA, GOTO, TSUGUMASA
Publication of US20130284127A1 publication Critical patent/US20130284127A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • F01P11/16—Indicating devices; Other safety devices concerning coolant temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P5/12—Pump-driving arrangements
    • F01P2005/125—Driving auxiliary pumps electrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2031/00—Fail safe
    • F01P2031/30—Cooling after the engine is stopped

Definitions

  • Patent Document 1 JP-A-2002-174120
  • control means operates the electric fan but does not operate the electric pump when the detected outside air temperature is equal to or higher than the predetermined value, the detected cooling water temperature is equal to or higher than the predetermined value, and the detected battery voltage is equal to or higher than a third predetermined value smaller than the first predetermined value, the detected battery voltage being less than the second predetermined value.
  • the control means stops the electric pump when the detected battery voltage becomes less than a fourth predetermined value smaller than the second predetermined value while the electric pump and the electric fan are operating.
  • FIG. 1 is a schematic configurational diagram showing a cooling device for an engine in an embodiment
  • FIG. 5 is a 2-D map showing a relationship between cooling water temperature and pump drive request flow rate in the embodiment
  • FIG. 7 is a time chart showing behaviors of various parameters in the embodiment.
  • This cooling device includes a control unit 30 corresponding to control means to control the electric pump 1 and the electric fans 4 .
  • a control unit 30 To the control unit 30 , there are individually connected the electric pump 1 , the electric fans 4 , the water temperature sensor 21 , and the outside air temperature sensor 22 . Further, an ignition switch (IG/SW) 23 and a battery 24 are also connected to the control unit 30 .
  • the control unit 30 receives, from the water temperature sensor 21 , a signal representing the cooling water temperature THW at the outlet 11 b of the water jacket 11 .
  • the control unit 30 receives a signal representing the outside air temperature THA from the outside air temperature sensor 22 .
  • the control unit 30 further receives signals related from engine start and engine stop from the IG/SW 23 .
  • a signal representing battery voltage GBA is also input from the battery 24 to the control unit 30 .
  • the control unit 30 corresponds to battery voltage detecting means to detect the battery voltage GBA.
  • step 109 the control unit 30 turns the electric fans 4 ON, thereby supplying cooling air to the radiator 3 .
  • step 110 the control unit 30 determines whether or not the battery voltage GBA is equal to or larger than a third predetermined value bat 3 smaller than the first predetermined value bat 1 . For example, “10 (V)” may be applied to this third predetermined value bat 3 . If this determination result is affirmative, the control unit 30 advances the process to step 111 .
  • the pump drive request flow rate RFP is determined based on the cooling water temperature THW obtained at that time. Further, the electric pump 1 and the electric fans 4 are simultaneously operated, and then, the electric pump 1 is stopped first and the electric fans 4 are stopped slightly later. Accordingly, the battery voltage GBA relatively slowly decreases, the cooling water temperature THW relatively rapidly decreases, and the engine-parts temperature relatively slowly rises.
  • FIG. 11 is a graph showing variations in battery voltage GBA with respect to the drive time of the electric fans 4 and the electric pump 1 , compared with the conventional example. This graph shows that the battery voltage GBA in the present embodiment more slowly decreases than in the conventional example.
  • the electric pump 1 and the electric fans 4 being operating after engine stop are stopped after a lapse of the post-IGOFF time TOF following the engine stop.
  • the battery runs out there is no fear that the battery runs out.
  • the electric fans 4 are two.
  • a single electric fan or three electric fans may be provided.
US13/823,425 2010-12-15 2011-08-30 Engine cooling device Abandoned US20130284127A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2010279426A JP5725831B2 (ja) 2010-12-15 2010-12-15 エンジンの冷却装置
JP2010-279426 2010-12-15
PCT/JP2011/069533 WO2012081281A1 (ja) 2010-12-15 2011-08-30 エンジンの冷却装置

Publications (1)

Publication Number Publication Date
US20130284127A1 true US20130284127A1 (en) 2013-10-31

Family

ID=46244396

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/823,425 Abandoned US20130284127A1 (en) 2010-12-15 2011-08-30 Engine cooling device

Country Status (5)

Country Link
US (1) US20130284127A1 (ja)
JP (1) JP5725831B2 (ja)
CN (1) CN103261618A (ja)
DE (1) DE112011104420T5 (ja)
WO (1) WO2012081281A1 (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140359327A1 (en) * 2013-06-04 2014-12-04 Canon Kabushiki Kaisha Electronic apparatus that performs cooling during power-off, method of controlling the same, and storage medium
US20180245503A1 (en) * 2015-12-17 2018-08-30 Hitachi Automotive Systems, Ltd. Cooling device for internal combustion engine of vehicle and control method thereof
US20180266304A1 (en) * 2016-01-06 2018-09-20 Hitachi Automotive Systems, Ltd. Cooling device for internal combustion engine of vehicle and control method thereof
US10174664B2 (en) 2014-11-12 2019-01-08 Hitachi Automotive Systems, Ltd. Cooling control apparatus for internal combustion engine and cooling control method therefor
US20190277184A1 (en) * 2018-03-12 2019-09-12 Toyota Jidosha Kabushiki Kaisha Temperature control apparatus of vehicle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101550616B1 (ko) * 2013-12-18 2015-09-08 현대자동차 주식회사 차량용 냉각 시스템 및 제어 방법
CN104832264B (zh) * 2014-12-19 2017-07-11 北汽福田汽车股份有限公司 汽车中冷却风扇的控制方法、装置及汽车
JP6723810B2 (ja) * 2016-04-27 2020-07-15 キャタピラー エス エー アール エル 熱交換装置
JP6738228B2 (ja) * 2016-07-26 2020-08-12 株式会社Ｓｕｂａｒｕ 車両の制御装置
DE102019205414A1 (de) * 2019-04-15 2020-10-15 Volkswagen Aktiengesellschaft Kühlkreislaufanordnung einer Verbrennungskraftmaschine
CN110107391B (zh) * 2019-05-23 2020-10-16 浙江吉利控股集团有限公司 一种发动机风扇后运行控制方法、系统及电子设备
DE102019125346B4 (de) * 2019-09-20 2021-09-02 Audi Ag Verfahren zum Betreiben eines eine Antriebseinrichtung aufweisenden Kraftfahrzeugs sowie entsprechendes Kraftfahrzeug
CN110578595A (zh) * 2019-09-30 2019-12-17 深圳市元征科技股份有限公司 一种发动机风扇控制方法、装置、设备、介质
CN115450745B (zh) * 2022-06-01 2024-04-23 北京罗克维尔斯科技有限公司 车辆及其发动机水温的控制方法、装置、控制设备、介质
CN115773174B (zh) * 2022-11-26 2024-03-29 重庆长安汽车股份有限公司 一种发动机电子水泵的控制方法及系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11350956A (ja) * 1998-06-08 1999-12-21 Nissan Motor Co Ltd 車両の冷却装置
JP2002174120A (ja) * 2000-12-05 2002-06-21 Aisan Ind Co Ltd エンジンの冷却装置
JP2009127478A (ja) * 2007-11-21 2009-06-11 Toyota Motor Corp 車両の冷却制御装置および冷却制御方法
JP2010068623A (ja) * 2008-09-10 2010-03-25 Toyota Motor Corp 電源システムおよびそれを備えた車両

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3716607B2 (ja) * 1998-03-26 2005-11-16 日産自動車株式会社 車両の冷却装置
JP2007170236A (ja) 2005-12-20 2007-07-05 Denso Corp エンジン冷却装置
CN101598061B (zh) * 2008-06-03 2013-02-20 刘传鹏 发动机冷却系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11350956A (ja) * 1998-06-08 1999-12-21 Nissan Motor Co Ltd 車両の冷却装置
JP2002174120A (ja) * 2000-12-05 2002-06-21 Aisan Ind Co Ltd エンジンの冷却装置
JP2009127478A (ja) * 2007-11-21 2009-06-11 Toyota Motor Corp 車両の冷却制御装置および冷却制御方法
JP2010068623A (ja) * 2008-09-10 2010-03-25 Toyota Motor Corp 電源システムおよびそれを備えた車両

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
Machine Translation of JP 11350956 A PDF File Name: "JP11350956A_Machine_Translation.pdf" *
Machine Translation of JP 2002174120 A PDF File Name: "JP2002174120A_Machine_Translation.pdf" *
Machine Translation of JP 2009127478 A PDF File Name: "JP2009127478A_Machine_Translation.pdf" *
Machine Translation of JP 2010068623 A PDF File Name: "JP2010068623A_Machine_Translation.pdf" *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140359327A1 (en) * 2013-06-04 2014-12-04 Canon Kabushiki Kaisha Electronic apparatus that performs cooling during power-off, method of controlling the same, and storage medium
US10174664B2 (en) 2014-11-12 2019-01-08 Hitachi Automotive Systems, Ltd. Cooling control apparatus for internal combustion engine and cooling control method therefor
US20180245503A1 (en) * 2015-12-17 2018-08-30 Hitachi Automotive Systems, Ltd. Cooling device for internal combustion engine of vehicle and control method thereof
US10371041B2 (en) * 2015-12-17 2019-08-06 Hitachi Automotive Systems, Ltd. Cooling device for internal combustion engine of vehicle and control method thereof
US20180266304A1 (en) * 2016-01-06 2018-09-20 Hitachi Automotive Systems, Ltd. Cooling device for internal combustion engine of vehicle and control method thereof
US10605150B2 (en) * 2016-01-06 2020-03-31 Hitachi Automotive Systems, Ltd. Cooling device for internal combustion engine of vehicle and control method thereof
US20190277184A1 (en) * 2018-03-12 2019-09-12 Toyota Jidosha Kabushiki Kaisha Temperature control apparatus of vehicle
US10808599B2 (en) * 2018-03-12 2020-10-20 Toyota Jidosha Kabushiki Kaisha Temperature control apparatus of vehicle

Also Published As

Publication number Publication date
JP2012127262A (ja) 2012-07-05
WO2012081281A1 (ja) 2012-06-21
CN103261618A (zh) 2013-08-21
JP5725831B2 (ja) 2015-05-27
DE112011104420T5 (de) 2013-09-12

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Owner name: AISAN KOGYO KABUSHIKI KAISHA, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GOTO, TSUGUMASA;MARUYAMA, KENYA;SIGNING DATES FROM 20130218 TO 20130305;REEL/FRAME:030035/0201

Owner name: TOYOTA JIDOSHA KABUSHIKI KAISHA, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GOTO, TSUGUMASA;MARUYAMA, KENYA;SIGNING DATES FROM 20130218 TO 20130305;REEL/FRAME:030035/0201

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION