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公开(公告)号：KR1020040107684A
公开(公告)日：2004-12-23
申请号：KR1020030036722
申请日：2003-06-09
Applicant: 현대자동차주식회사
Inventor： 김덕렬
IPC: B60K15/077
Abstract: PURPOSE: A fuel-return noise prevention device of a bombe of an LPI(Liquefied Petroleum Gas Injection) vehicle is provided to prevent noise caused by bubble floatation or fluid drop by separating over-supplied fuel returned into the bombe into liquid and gaseous fuel, diffusing the gaseous fuel into a space, and flowing the liquid fuel into pre-filled liquid fuel. CONSTITUTION: A fuel-return noise prevention device of a bombe(1) of an LPI vehicle is composed of a return pipe(2) inserted and mounted in the bombe; a box-shaped reservoir(7) having an upside connected to the return pipe and a plurality of vent holes(7a) on the upside; and a discharge pipe(8) of which an upper end is coupled to the lower side of the reservoir and a lower end is extended adjacently to the bottom surface of the bombe. The lower end of the discharge pipe is positioned in the depth that the fuel is filled in 10% of the fuel tank.
Abstract translation: 目的：提供LPI（液化石油气注射）车辆的燃料回收噪声防止装置，以通过将返回到炸弹中的过量供应的燃料分成液体和气体燃料来防止由气泡漂浮或液体流失引起的噪声， 将气体燃料扩散到空间中，并将液体燃料流入预填充的液体燃料中。 构成：LPI车辆的轰炸机（1）的燃油返回防噪装置由插入并安装在炸弹中的回流管（2）组成; 具有连接到所述返回管的上侧的箱形容器（7）和在所述上侧上的多个通气孔（7a）; 和排出管（8），其上端与贮存器的下侧相连，下端与炸弹的底面相邻延伸。 排放管的下端定位在燃料填充在燃料箱的10％的深度。
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公开(公告)号：KR101510320B1
公开(公告)日：2015-04-08
申请号：KR1020090011073
申请日：2009-02-11
Inventor： 김덕렬
CPC classification number: Y02T10/125
Abstract: 본발명의실시예에따른지디아이엔진의연료펌프시스템은, 캠샤프트에형성된캠에의해서왕복해서움직이는피스톤에의해서작동되어연료를펌핑하는연료펌프, 연료의흐름통로를차단하거나개방하여연료챔버내부의압력을상승시키거나하강시켜연료를인젝터로적시에공급하는스필밸브, 회전신호를감지하도록엔진의일측에설치되는회전감지부, 및상기회전감지부에서감지된엔진의회전수크기에따라서상기스필밸브에인가되는전류또는전압을제어하는제어부를포함한다. 따라서, 엔진의회전수가낮은영역에서스필밸브에인가되는전류또는전압을컨트롤함으로써스필밸브가열리거나닫힐때 발생되는소음과진동을저감시킬수 있다. 아울러, 엔진회전수에따라서스필밸브에인가되는전류또는전압을저감시킴으로써배터리충전효율과출력을향상시키고이에따라연료의소비를저감시킬수 있다.
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公开(公告)号：KR101171905B1
公开(公告)日：2012-08-07
申请号：KR1020090051119
申请日：2009-06-09
Inventor： 김덕렬
CPC classification number: F02P5/1506 , F02D2200/021 , F02P3/0456 , F02P9/002 , Y02T10/46
Abstract: 본 발명의 실시예에 따른 엔진의 점화 시스템은, 점화코일에 공급되는 전류를 이용하여 연소실에 불꽃을 발생시키는 점화장치, 오프된 엔진을 시동하기 위한 시동신호를 감지하는 시동감지부, 엔진의 냉각수온을 검출하는 냉각수온감지부, 및 상기 시동신호가 감지되고 상기 냉각수온이 설정된 온도 미만인 경우, 시동 시작 후 설정된 시간 동안 상기 점화코일에 공급되는 전류의 드웰타임(dwell time)을 증가시키는 전원제어부를 포함한다.
따라서, 엔진의 온도가 낮은 경우, 시동 직후 드웰타임을 설정된 시간 동안 증가시킴으로써 연소특성을 안정화하여 시동안정성을 향상시킬 수 있다.
GDI, 점화, 시스템, 드웰타임, dwell, 점화코일-
公开(公告)号：KR100986077B1
公开(公告)日：2010-10-07
申请号：KR1020080086926
申请日：2008-09-03
Inventor： 김덕렬
Abstract: 본 발명은 전자식으로 제어되는 스로틀 밸브의 위치를 검출하는 TPS의 신호에 이상이 있는 경우 유입되는 공기량에서 추정되는 TPS값을 스로틀 밸브의 위치제어에 적용하는 것이다.
본 발명은 가속페달의 변위에 따른 요구 토크량을 결정하고, 유입되는 공기량에서 TPS값을 추정하는 과정, 요구 토크량으로 직류모터를 작동시켜 스로틀 밸브의 위치를 조정하는 과정, 피드백 제어를 위해 스로틀 밸브의 위치를 검출하는 TPS1,TPS2의 이상여부를 진단하는 과정, 상기 TPS1,TPS2의 동시 이상이 판정되면 공기량에서 추정된 TPS값을 피드백 제어에 적용하는 과정을 포함한다.
ETC, 전자식 스로틀 밸브, TPS 신호, 공기량, 이상판정-
公开(公告)号：KR1020100091739A
公开(公告)日：2010-08-19
申请号：KR1020090011073
申请日：2009-02-11
Inventor： 김덕렬
CPC classification number: Y02T10/125 , F02M59/46 , F02B23/10 , F02D41/04 , F02M59/44
Abstract: PURPOSE: A fuel pump control system of GDI engine and a control method thereof are provided to reduce noise and vibration when opening and closing a spill valve by controlling current and voltage which applied to the spill valve. CONSTITUTION: A fuel pump control system of GDI engine comprises a fuel pump(125), a spill valve(140), a rotation sensor and a controller. The fuel pump pumps fuel using a cam which is formed on a cam shaft. A spill valve blocks a fuel flow path and supplies fuel to an injector by increasing or decreasing the inner pressure of a fuel chamber. The rotation sensor is installed in one side of the engine in order to sense the convolution signal. According to the number of rotation size of the engine which controller is detected in the rotation sensor, current or the voltage applied in the spill valve is controlled.
Abstract translation: 目的：提供一种GDI发动机的燃油泵控制系统及其控制方法，以通过控制施加到溢流阀的电流和电压来打开和关闭溢流阀来减少噪音和振动。 构成：GDI发动机的燃油泵控制系统包括燃料泵（125），溢流阀（140），旋转传感器和控制器。 燃料泵使用形成在凸轮轴上的凸轮泵送燃料。 泄漏阀阻挡燃料流动路径并通过增加或减小燃料室的内部压力来向喷射器供应燃料。 旋转传感器安装在发动机的一侧，以便感测卷积信号。 根据在旋转传感器中检测到控制器的发动机的旋转尺寸的数量，控制溢流阀中施加的电流或电压。
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Patent Agency Ranking
公开(公告)号：KR100952009B1
公开(公告)日：2010-04-08
申请号：KR1020080034281
申请日：2008-04-14
Applicant: 현대자동차주식회사
Inventor： 김덕렬
CPC classification number: Y02T10/32
Abstract: 본 발명은 엘피아이(LPI) 하이브리드 차량의 연료펌프 제어방법에 관한 것으로, 모터 구동상태에서도 연료펌프가 작동되어 연료의 공급이 이루어지고, 또한 연료압력이 목표압력범위(LPG 연료가 항상 액상을 유지함과 더불어 연료펌프의 작동 반복 시간이 적절한 간격을 유지하도록 설정됨) 내에서 유지되도록 제어되는 것을 특징으로 한다.
따라서, 모터 구동상태에서 엔진 구동상태로 전환 시 충분한 농도의 연료가 안정적으로 공급됨으로써 안정된 시동 및 구동상태 유지가 가능한 효과가 있다.
엘피아이 엔진, 엘피아이 하이브리드 차량, 모드 전환, 연료공급-
公开(公告)号：KR1020100028368A
公开(公告)日：2010-03-12
申请号：KR1020080087375
申请日：2008-09-04
Applicant: 현대자동차주식회사
Inventor： 김덕렬
CPC classification number: F02D41/0045 , F02D41/0025 , F02D41/30 , Y02T10/32 , Y02T10/44
Abstract: PURPOSE: A method for calculating ethanol content of fuel in an engine is provided to calculate the ethanol content and control the fuel injection amount only when fuel amount is changed, thereby reducing the load of the ECU. CONSTITUTION: A method for calculating ethanol content of fuel in an engine comprises a step of calculating the ethanol content of fuel from a signal of an ethanol sensor when ignition is on(S305,S307), and a step of controlling the fuel injection amount of the engine according to the calculated ethanol content(S309). The fuel level sensor measures the fuel amount in a fuel tank during the operation of the engine.
Abstract translation: 目的：提供一种计算发动机燃料乙醇含量的方法，以计算乙醇含量，仅在燃料量变化时控制燃料喷射量，从而降低ECU的负荷。 发明内容一种用于计算发动机中的燃料乙醇含量的方法，包括：当点火开启时从乙醇传感器的信号计算燃料的乙醇含量的步骤（S305，S307），以及控制燃料喷射量的步骤 发动机根据计算出的乙醇含量（S309）。 燃料液位传感器在发动机运转期间测量燃料箱中的燃料量。
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48.发明授权엘피아이 엔진의 컷솔레노이드를 구비한 인젝터의제어회로와, 컷솔레노이드의 제어방법 및 컷솔레노이드의고장진단방법 失效具有LPI发动机的切断螺线管的喷射器的控制电路和切断电磁阀的控制方法及其诊断方法
公开(公告)号：KR100736999B1
公开(公告)日：2007-07-09
申请号：KR1020050080175
申请日：2005-08-30
Applicant: 현대자동차주식회사
Inventor： 김덕렬
CPC classification number: F02D19/021 , F02D19/025 , F02D41/221 , F02M21/0212 , F02M21/0254 , Y02T10/32 , Y02T10/40
Abstract: 본 발명은 컷솔레노이드를 구비한 인젝터를 제어하는 제어회로와 상기 컷솔레노이드를 제어하는 제어방법 및 상기 컷솔레노이드의 고장여부를 판단하는 고장진단방법을 제공함으로써, 엘피아이 엔진의 정지시에 인젝터로부터 연료가 대기중으로 누출되는 것을 효과적으로 차단할 수 있도록 하여, 대기오염을 시키지 않고, 각종 관련법규의 내용을 충족시킬 수 있도록 한다.
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公开(公告)号：KR1020070028668A
公开(公告)日：2007-03-13
申请号：KR1020050080177
申请日：2005-08-30
Applicant: 현대자동차주식회사
Inventor： 김덕렬
CPC classification number: F02B43/12 , F02D19/024 , F02D19/025 , F02D19/027 , F02M21/0212 , F02M21/0242 , F02M21/0245 , F02M21/0254 , F02M21/026 , F02M51/061 , Y02T10/32
Abstract: An LPI(Liquefied Petroleum gas Injection) engine system is provided to prevent LPG from leaking through an intake system of an engine through an injector during ignition off, by opening/closing the LPG injection path in interlock with the starting of the engine. An LPI engine system comprises an injector(3) arranged in an intake system of an engine(1) so as to inject LPG; a fuel bombe(5) for storing LPG to be supplied to the injector; a supply line(7) and a return line(9) for interconnecting the injector and the fuel bombe and supplying and returning LPG; an engine control unit(11) for controlling the injection timing and injection amount of LPG in accordance with the travel status; and an LPI control unit(13) for detecting the variation of temperature and pressure of fuel in the fuel supply and return systems ranging from the fuel bombe to the injector. The engine control unit receives physical values varying during the operation of the engine from an intake air temperature sensor(101), an intake air flow sensor(102), a throttle position sensor(103), a crank position sensor(104), a coolant temperature sensor(105), an oxygen sensor(106), and a knock sensor(107).
Abstract translation: 提供LPI（液化石油气注射）发动机系统，通过与发动机起动联动地打开/关闭LPG喷射路径来防止LPG在点火期间通过喷射器从发动机的进气系统泄漏。 LPI发动机系统包括设置在发动机（1）的进气系统中以便喷射LPG的喷射器（3） 用于存储要供给到所述喷射器的LPG的燃料棒（5） 用于将喷射器和燃料轰炸机互连并供应和返回LPG的供应管线（7）和返回管线（9） 发动机控制单元（11），用于根据行驶状态控制液化石油气的喷射定时和喷射量; 以及LPI控制单元（13），用于检测燃料供给和返回系统中从燃料弹射器到喷射器的温度和压力的变化。 发动机控制单元接收从进气温度传感器（101），进气流量传感器（102），节气门位置传感器（103），曲柄位置传感器（104），发动机控制单元 冷却剂温度传感器（105），氧传感器（106）和爆震传感器（107）。
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公开(公告)号：KR1020070027950A
公开(公告)日：2007-03-12
申请号：KR1020050079938
申请日：2005-08-30
Applicant: 현대자동차주식회사
Inventor： 김덕렬
CPC classification number: Y02T10/32 , F02D41/22 , F02D2041/225 , F02M21/0236 , F02M21/0293
Abstract: A fuel system control method of an LPI engine vehicle is provided to turn off an engine by permitting an engine management system ECU to sense the deployment of an air bag and stop the operation of a fuel pump and an injector and shut off first and second cutoff solenoid valves upon occurrence of vehicle crash. A fuel system control method of an LPI engine vehicle comprises a step of opening a first cutoff solenoid valve and a second cutoff solenoid valve, operating a fuel pump, and judging whether fuel leakage has occurred prior to starting of an engine by monitoring the internal pressure of a fuel supply line; a step of turning off the fuel pump and shutting first and second cutoff solenoid valves, if it is judged that fuel leakage has occurred prior to starting of the engine; a step of operating an injector so that a normal fuel supply and injection operation is performed and judging whether fuel leakage has occurred after starting of the engine by monitoring the internal pressure of the fuel supply line, if it is judged in the previous step that no fuel leakage has occurred and engine has started; and a step of turning off the fuel pump and the injector and shutting first and second cutoff solenoid valves if it is judged that fuel leakage has occurred after starting of the engine.
Abstract translation: 提供一种LPI发动机车辆的燃料系统控制方法，通过允许发动机管理系统ECU感测气囊的展开并停止燃料泵和喷射器的操作并关闭第一和第二截止来关闭发动机 发生车辆碰撞时的电磁阀。 LPI发动机车辆的燃料系统控制方法包括打开第一截止电磁阀和第二截止电磁阀的步骤，操作燃料泵，以及通过监测内部压力来判断发动机起动之前是否已经发生燃料泄漏 燃料供应线; 如果在发动机起动之前判断出已经发生燃料泄漏，则关闭燃料泵并关闭第一和第二截止电磁阀的步骤; 操作喷射器以使得正常的燃料供给和喷射操作被执行的步骤，并且通过监视燃料供应管线的内部压力来判断发动机起动之后是否已经发生燃料泄漏的步骤，如果在上一步骤中判断为没有 发生燃油泄漏，发动机已经启动; 以及如果在发动机起动之后判断出已经发生燃料泄漏，则关闭燃料泵和喷射器并关闭第一和第二截止电磁阀的步骤。
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