CN1664343A - 液化石油喷射车辆的燃料泵噪音抑制装置及其方法 - Google Patents
液化石油喷射车辆的燃料泵噪音抑制装置及其方法 Download PDFInfo
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Abstract
公开了一种液化石油喷射(LPI)车辆的燃料泵噪音抑制装置及其有关方法,以在液化石油气(LPG)开关断开时,通过截止阀来停止燃料供应。本发明还通过允许接口盒(IFB)电控单元(ECU)关闭继电器以及通过隔离供给燃料泵的电池能量来停止燃料泵,减小了由于燃料泵的不必要运行所引起的噪声和发动机输出消耗。
Description
相关申请的交叉引用
本申请基于并要求2004年3月04提出的申请号为10-2004-0014615的韩国申请的优先权,该申请全部公开内容结合在此作为参考。
技术领域
本发明涉及一种在液化石油喷射(LPI)车辆中的燃料泵噪音抑制装置及其方法。具体来说,本发明涉及一种根据液化石油气(LPG)开关的启动来控制燃料截止阀和燃料泵的运行的设备和方法。
技术背景
一般来说,使用LPG作为燃料的车辆的设计是使LPG以气态注入到发动机中。LPG从燃料箱中被提供,并通过蒸发器和混合器转变成气态。然而,LPG发动机在发动机输出功率、燃料经济性、车辆在较低温度下的启动和废气排放等方面具有缺陷。因此,目前正在研制和应用LPI机车。
通过使用安装燃料箱上的燃料泵,LPI发动机被构造来将LPG燃料压缩并经过燃料管路将其传输到喷射器中。然后,喷射器将燃料以液态的形式喷射到发动机中,以提高发动机的输出、燃料经济性、车辆在低温下启动的性能,并减少废气的排放。
在LPI发动机车辆中,截止阀分别安装在燃料箱和调节器中。如果LPG开关在发动机运行的时候被关闭,该接口盒(IFB)关闭截止阀,并停止通过喷射器的燃料流动。
在传统的LPI发动机车辆中,当LPG开关关闭时,燃料箱中的截止阀和调节器被关闭来停止燃料供应。然而,即使发动机停止时,在燃料箱中也还存在一个缺点,就是燃料泵被另外的能源不断启动,因此由于燃料泵不必要的操作,增加了噪音和输出消耗。
发明内容
本发明的实施例提供了LPI车辆中的燃料泵噪音抑制装置及其方法,它用来在LPG开关断开时关闭调节器和燃料箱的截止阀,以停止燃料泵的运行,从而减小由于燃料泵的不必要运行所引起的噪声和输出消耗。
液化石油喷射(LPI)车辆的燃料泵噪音抑制装置包括液化石油气(LPG)开关。接口盒(IFB)电控单元(ECU)控制LPI车辆的燃料。燃料箱中的燃料泵被构造来通过继电器来接受电池能量而被起动。IFBECU具有一个连接到LPG开关后侧的终端,该IFB ECU用来在通过终端测定的电压少于标准电压时确定LPG开关被断开,从而通过关闭继电器并隔离向燃料泵提供的电池能量来停止燃料泵的运行。
液化石油喷射(LPI)车辆的燃料泵噪音抑制装置包括液化石油气(LPG)开关。如果通过LPG开关提供的电池能量停止,多个截止阀关闭,从而隔离了燃料供应。继电器提供或隔离电池能量。燃料箱中的燃料泵被构造来通过继电器接收电池能量而被起动。接口盒(IFB)电控单元(ECU)被构造通过LPG开关来检测提供给多个截止阀的电压,并且如果LPG开关被确定为在断开状态,则IFB ECU通过关闭继电器而隔离提供给燃料泵的电池能量,从而停止燃料泵的运行。
IFB ECU通过LPG开关来检测施加在多个截止阀上的电压,随后将检测电压与预设的标准值相比较,如果检测电压比标准值要大,IFB ECU确定LPG开关处于接通状态,如果检测电压比标准值要低,IFB ECU确定LPG开关处于断开状态。
截止阀安装在燃料箱和调节器上。
液化石油喷射(LPI)车辆的燃料泵噪音抑制方法包括以下步骤:通过液化石油气(LPG)开关检测施加在截止阀上的电压;将检测电压与预设的标准电压相比较;并且如果检测电压小于或等于标准电压,确定LPG开关处于断开状态,则通过隔离供给燃料泵的电池能量停止燃料泵的运行。
附图说明
为了进一步理解本发明的性质和目的,应结合附图来参考以下的详细说明,其中:
图1为本发明一个实施例的LPI车辆中的燃料泵噪音抑制装置的电路图。
图2为本发明一个实施例的LPI车辆中的燃料泵噪音抑制装置的流程图。
实施方式
参考图1,本发明一个实施例的燃料泵噪音抑制装置包括LPG开关10,调节器20中的截止阀21,燃料箱30中的截止阀31,燃料箱30中的燃料泵32,继电器40,和用来控制燃料的接口盒(IFB)电控单元(ECU)50。
LPI发动机具有一个发动机管理系统(EMS)ECU和一个IFB ECU来控制发动机和燃料来起动车辆。
LPG开关10根据司机的控制来接通或断开。在紧急情况或燃料可能大量泄露时,司机断开LPG开关10以停止燃料供应,来防止燃料泄露等带来的危险。
当通过LPG开关10提供的电池能量(B+,来自主继电器后侧的12V能量)由于关闭LPG开关10而被截止时,调节器20的截止阀21和燃料箱30的截止阀31关闭,停止燃料供应。
IFB ECU 50通过连接到LPG开关10后侧的终端(插脚2)检测电池能量(B+)的电压。该B+电压通过LPG开关10施加到截止阀21和31上。然后该IFB ECU 50将上述电压与预存的标准电压相比较。如果检测到的电压比标准值要高,则IFB ECU 50就假设LPG开关10被接通。然而,如果检测到的电压低于或等于标准电压,IFB ECU 50就会确定LPG开关10在断开的状态。
如果LPG开关10被确定为断开状态,则该IFB ECU 50就会关闭继电器40,并停止提供给燃料泵32电池能量,来终止燃料泵32的运行。
现在将对本发明实施例的LPI车辆的燃料泵噪音抑制装置及其方法的运行和效果进行详细描述。
如果在发动机运行的时候司机断开LPG开关10,则提供给调节器20的截止阀21和燃料箱30的截止阀31的电池能量被隔离,阀21和31被关闭,从而停止通过喷射器的燃料供应。
IFB ECU 50通过终端(PIN2)检测电池能量(B+)的电压,并将该电压与预设标准电压相比较。电池能量(B+)的电压通过LPG开关10施加在截止阀21和31上。如果检测电压低于标准电压,该LPG开关10就被确定处于断开状态。
此外,如果IFB ECU 50在PIN周围没有电阻器或放大器的情况下检测到PIN电压,在LPG开关接通的时候,检测到12V。然而,在LPG开关断开的时候检测到0V。另一方面,如果电阻器或放大器安装在PIN周围,则电压值不同。因此,确定LPG开关是接通还是断开需要建立一个所需的标准电压。
一旦LPG开关10被确定为断开状态,则继电器40关闭,来隔离提供给燃料泵32的电池能量,这样就停止了燃料泵32的运行。
因此,如果在发动机运行时LPG开关10被断开,则调节器20的截止阀21和燃料箱30中的截止阀31被关闭,且燃料泵32停止运行。
也就是说,参照图2,IFB ECU 50通过终端(PIN2)检测电池能量(B+)的电压(步骤1)。该B+电压通过LPG开关10施加在截止阀21和31上。IFB ECU 50将检测电压与预设的标准电压比较(步骤2)。如果检测电压低于或等于标准电压,则该IFB ECU 50确定LPG开关10被断开,并因此执行步骤3。
在步骤3中,IFB ECU 50关闭了继电器40来隔离提供给燃料泵32的电池能量,并使燃料泵32停止运行。
如前所述,本发明中的一个优点是当发动机停止时,燃料箱与调节器中的截止阀被关闭,同时,燃料泵停止运行。因此,由于燃料泵的不必要运行所引起的噪声和发动机输出消耗被有效地降低。
Claims (5)
1.一种液化石油喷射(LPI)车辆的噪音抑制装置,该装置包括:
液化石油气(LPG)开关;
控制LPI车辆燃料的接口盒(IFB)电控单元(ECU):和
燃料箱中的燃料泵,其被构造来通过一个继电器接收电池能量而被起动,其中所述IFB ECU具有一个连接到所述LPG开关后侧的终端,所述IFB ECU被构造为当通过所述终端检测的电压低于标准电压时确定所述LPG开关被断开,从而通过关闭所述继电器和隔离供给所述燃料泵的电池能量来停止所述燃料泵的运行。
2.一种液化石油(LPI)车辆的燃料泵噪音抑制装置,该装置包括:
液化石油气(LPG)开关;
多个截止阀,如果通过所述LPG开关所提供的电池能量停止,所述截止阀关闭,从而隔离燃料供应;
提供或隔离电池能量的继电器;
燃料箱中的燃料泵,被构造为通过所述继电器接收电池能量而被起动;和
接口盒(IFB)电控单元(ECU),其被构造来通过所述LPG开关来检测提供给所述多个截止阀的电压,且如果所述LPG开关被确定为在断开的状态,所述IFB ECU通过关闭所述继电器隔离提供给所述燃料泵的电池能量,从而停止燃料泵的运行。
3.如权利要求2所述的装置,其中所述IFB ECU通过所述LPG开关检测施加在所述多个截止阀上的电压,并随后将检测电压与预设的标准值相比较,如果检测电压高于标准值,所述IFB ECU确定所述LPG开关在接通状态,如果检测电压低于标准值,所述IFB ECU确定所述LPG开关在断开状态。
4.如权利要求2所述的装置,其中所述截止阀安装在所述调节器和所述燃料箱中。
5.在液化石油器喷射(LPI)车辆中的抑制燃料泵噪音的方法,该方法包括:
通过液化石油气(LPG)开关检测施加在截止阀上的电压;
将检测电压与预设的标准电压相比较;且
如果检测电压低于或等于标准电压,且所述LPG开关被确定处于断开状态,则通过隔离提供给燃料泵的电池能量,停止燃料泵的运行。
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KR1020040014615 | 2004-03-04 | ||
KR1020040014615A KR100620416B1 (ko) | 2004-03-04 | 2004-03-04 | 엘피아이 차량의 연료펌프 노이즈 저감장치 |
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CN1664343A true CN1664343A (zh) | 2005-09-07 |
CN100404840C CN100404840C (zh) | 2008-07-23 |
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JP (1) | JP4392319B2 (zh) |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101446249B (zh) * | 2007-11-30 | 2012-05-30 | 三菱电机株式会社 | 车辆用燃料供给装置 |
CN102562363A (zh) * | 2010-12-06 | 2012-07-11 | 现代自动车株式会社 | 用于车辆的液化石油喷射系统 |
CN103775178A (zh) * | 2012-10-17 | 2014-05-07 | 罗伯特·博世有限公司 | 用于运行配量装置的方法和用于执行该方法的装置 |
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KR100610074B1 (ko) * | 2004-04-29 | 2006-08-08 | 현대자동차주식회사 | 엘피아이 연료펌프 진단 시스템 |
KR100610075B1 (ko) * | 2004-04-29 | 2006-08-08 | 현대자동차주식회사 | 엘피아이 연료 펌프의 진단 방법 |
KR100716314B1 (ko) * | 2005-08-30 | 2007-05-11 | 현대자동차주식회사 | 엘피지 스위치 라인 단선 감지 방법 |
KR100748671B1 (ko) * | 2006-04-17 | 2007-08-10 | 현대자동차주식회사 | 엘피아이 엔진의 진단 시스템 및 방법 |
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KR100971143B1 (ko) | 2008-07-28 | 2010-07-20 | 경남정보대학산학협력단 | 중장비의 연료이송펌프 자동제어장치 |
US8342151B2 (en) * | 2008-12-18 | 2013-01-01 | GM Global Technology Operations LLC | Deactivation of high pressure pump for noise control |
US20100264726A1 (en) * | 2009-04-20 | 2010-10-21 | Tzvika Hershko | Fuell consumption reduction device |
KR20140102490A (ko) * | 2013-02-14 | 2014-08-22 | 콘티넨탈 오토모티브 시스템 주식회사 | Lpg를 연료로 사용하는 isg 적용 차량의 이그니션 장치 |
US20150167589A1 (en) * | 2013-12-13 | 2015-06-18 | Hyundai Motor Company | Method and apparatus for controlling high pressure shut-off valve |
JP6206343B2 (ja) * | 2014-06-26 | 2017-10-04 | トヨタ自動車株式会社 | 内燃機関の燃料供給装置 |
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US4989573A (en) * | 1988-07-11 | 1991-02-05 | Yamaha Hatsudoki Kabushiki Kaisha | Gas powered engine with glow plug ignition |
DE68903277T2 (de) * | 1989-08-04 | 1993-03-04 | Bosch Gmbh Robert | Elektronische motorsteuerung bei kraftfahrzeugen. |
US5090396A (en) * | 1990-11-27 | 1992-02-25 | Bickel Wayne J | Adjustable archery stabilizer |
JPH06159176A (ja) * | 1992-11-30 | 1994-06-07 | Nippondenso Co Ltd | 内燃機関の燃料ポンプ制御装置 |
KR960003252B1 (ko) * | 1994-02-23 | 1996-03-07 | 박형규 | 자동차 연료전환장치의 가솔린 인젝터 보호장치 |
KR970036315A (ko) * | 1995-12-27 | 1997-07-22 | 전성원 | 시동키 오프시 진동방지용 연료컷팅장치 |
KR0139018Y1 (ko) * | 1996-10-29 | 1999-03-20 | 양재신 | 자동차의 연료펌프 차단장치 |
CN1061738C (zh) * | 1997-05-13 | 2001-02-07 | 叶邦恩 | 柴油发动机电磁阀断油控制机构 |
KR100388514B1 (ko) * | 1998-03-04 | 2003-06-25 | 비알 비히어 비.브이. | 내연 기관용 연료 분사 장치 |
CN2374652Y (zh) * | 1999-04-08 | 2000-04-19 | 马耀顺 | 柴油机电控熄火和机油欠压保护器 |
KR100534786B1 (ko) * | 2002-05-20 | 2005-12-07 | 현대자동차주식회사 | 엘피지 차량에서 연료 조성 모델링 방법 |
KR100489069B1 (ko) * | 2002-08-13 | 2005-05-12 | 현대자동차주식회사 | 디젤 엔진의 시동 오프시 진동 저감 장치 및 그 방법 |
KR100610074B1 (ko) * | 2004-04-29 | 2006-08-08 | 현대자동차주식회사 | 엘피아이 연료펌프 진단 시스템 |
-
2004
- 2004-03-04 KR KR1020040014615A patent/KR100620416B1/ko active IP Right Grant
- 2004-10-20 JP JP2004305947A patent/JP4392319B2/ja not_active Expired - Fee Related
- 2004-10-28 DE DE102004052441A patent/DE102004052441B4/de not_active Expired - Fee Related
- 2004-11-09 CN CNB2004100889252A patent/CN100404840C/zh not_active Expired - Fee Related
- 2004-12-23 US US11/022,260 patent/US7383827B2/en active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101446249B (zh) * | 2007-11-30 | 2012-05-30 | 三菱电机株式会社 | 车辆用燃料供给装置 |
CN102562363A (zh) * | 2010-12-06 | 2012-07-11 | 现代自动车株式会社 | 用于车辆的液化石油喷射系统 |
CN102562363B (zh) * | 2010-12-06 | 2016-03-30 | 现代自动车株式会社 | 用于车辆的液化石油喷射系统 |
CN103775178A (zh) * | 2012-10-17 | 2014-05-07 | 罗伯特·博世有限公司 | 用于运行配量装置的方法和用于执行该方法的装置 |
Also Published As
Publication number | Publication date |
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DE102004052441B4 (de) | 2007-12-27 |
DE102004052441A1 (de) | 2006-10-19 |
US7383827B2 (en) | 2008-06-10 |
KR20050089283A (ko) | 2005-09-08 |
JP4392319B2 (ja) | 2009-12-24 |
CN100404840C (zh) | 2008-07-23 |
JP2005248942A (ja) | 2005-09-15 |
KR100620416B1 (ko) | 2006-09-12 |
US20050193992A1 (en) | 2005-09-08 |
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