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公开(公告)号：KR1020130060616A
公开(公告)日：2013-06-10
申请号：KR1020110126765
申请日：2011-11-30
Inventor： 이범기
CPC classification number: F01N3/0231 , F01N3/025 , F01N2330/32 , F01N2330/48 , F01N2330/60
Abstract: PURPOSE: A method for controlling a low pressure fuel pump of a GDI engine is provided to control a low pressure pump with an open loop according to the method which is separately set up based on the driving conditions. CONSTITUTION: A method for controlling a low pressure fuel pump of a GDI engine comprises the following steps. Specific driving conditions which might affect the driving performance are set up(S10). When one of these specific conditions occurs, the low pressure fuel pump is controlled with an open-loop(S30). If the specific conditions do not occur, the low pressure fuel pump is controlled with a closed-loop by the receiving signals from a fuel pressure sensor(S40). [Reference numerals] (AA) Start; (BB) Operation conditions = certain operation conditions?; (CC) High-pressure system failure?; (DD) Vehicle start?; (EE) Extremely highlands/extremely high temperature?; (FF) Over load?; (GG) Low-pressure fuel pump failure?; (HH) Open-loop control (high-pressure system failure); (II) Open-loop control (vehicle start); (JJ) Open-loop control (extremely highlands/extremely high temperature); (KK) Open-loop control (over load); (LL) Open-loop control (low-pressure fuel pump failure); (MM) Return; (S10) Input target fuel pressure, fuel consumption, operation conditions; (S20) Input the current and the voltage of the low-pressure fuel pump; (S40) Closed-loop control (follow the target fuel pressure)
Abstract translation: 目的：提供一种控制GDI发动机的低压燃油泵的方法，根据驾驶条件分别设置的方法控制带开环的低压泵。 构成：用于控制GDI发动机的低压燃料泵的方法包括以下步骤。 设定可能影响驾驶性能的具体行驶条件（S10）。 当发生这些特定条件之一时，低压燃料泵由开环控制（S30）。 如果没有发生特定条件，则通过来自燃料压力传感器的接收信号通过闭环控制低压燃料泵（S40）。 （附图标记）（AA）开始; （BB）操作条件=某些操作条件 （CC）高压系统故障？ （DD）车辆启动 （EE）极高的地区/极高的温度？ （FF）过载？ （GG）低压燃油泵故障？ （HH）开环控制（高压系统故障）; （II）开环控制（车辆启动）; （JJ）开环控制（极高/极高温度）; （KK）开环控制（过载）; （LL）开环控制（低压燃油泵故障）; （MM）返回; （S10）输入目标燃油压力，油耗，运行条件; （S20）输入低压燃料泵的电流和电压; （S40）闭环控制（按照目标燃油压力）
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公开(公告)号：KR101294190B1
公开(公告)日：2013-08-08
申请号：KR1020110126765
申请日：2011-11-30
Inventor： 이범기
CPC classification number: F01N3/0231 , F01N3/025 , F01N2330/32 , F01N2330/48 , F01N2330/60
Abstract: 본 발명은 저압시스템과 고압시스템으로 구성되는 GDI엔진의 연료공급시스템에서, 차량의 연비 향상을 위해 저압시스템의 저압연료펌프를 가변 제어하여 차량의 연비 향상을 꾀하면서도, 이러한 저압연료펌프의 연비 위주의 가변제어에 의해 발생할 수 있는 특정 상황에서의 엔진 운전상의 각종 문제점에 대비하여 상기 저압연료펌프를 제어할 수 있도록 함으로써, GDI엔진 탑재 차량의 연비를 더욱 향상시키면서도 GDI엔진의 안정된 운전성을 확보하여, 궁극적으로 차량의 상품성을 향상시킬 수 있도록 한다.
Abstract translation: 本发明同时寻求低压系统和GDI的发动机的燃料供给系统中的燃料效率，以可变地控制所述低压系统的低压燃料泵，以提高车辆的燃料经济性的车辆由高压系统的，主要是这样的燃料泵的低压燃料 通过对比的各种问题与发动机工作在能够由可变控制来控制低压燃料泵引起的特定的条件，改善了GDI发动机装备的车辆的燃料经济性更，同时仍然保证了GDI发动机的稳定运行 从而最终改善车辆的适销性。
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公开(公告)号：KR100877865B1
公开(公告)日：2009-01-13
申请号：KR1020070104378
申请日：2007-10-17
Inventor： 이범기
Abstract: A misfire in vehicle sensing method is provided to prevent mis-sense the misfire by operating misfire observation action of the cylinder mode even misfire is perceived in the revolution mode. A misfire in vehicle sensing method performs the following steps: a step detecting the misfire value of the revolution mode and misfire value of the cylinder mode and confirms whether it is the damper direct-coupled condition or not (S10); a step for notifying the misfire sensing it is the confirmation result damper direct-coupled condition (S11); and a step for notifying the misfire sensing it is not, confirmation result damper direct-coupled condition (S12). The first peak misfire value and the comparison copper work comparing the misfire standard value of the cylinder mode are performed, the first peak misfire value of the comparison result cylinder mode exceeds the misfire standard value, and determines as the misfire sensing with final.
Abstract translation: 提供车辆感测方法中的失火，以通过操作气缸模式的失火观察动作来防止误动作错误，甚至在转速模式下感觉到失火。 在车辆感测方法中失火执行以下步骤：检测旋转模式的失火值和气缸模式的失火值的步骤，并确认其是否是阻尼器直接耦合状态（S10）; 通知失火感测的步骤是确认结果风门直接耦合条件（S11）; 和通知失火感测的步骤不是，确认结果阻尼器直接耦合条件（S12）。 执行比较圆柱模式的失火标准值的第一峰值失火值和比较铜工作，比较结果气缸模式的第一峰值失火值超过失火标准值，并且被确定为最终的失火感测。
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Patent Agency Ranking
公开(公告)号：KR101416396B1
公开(公告)日：2014-07-08
申请号：KR1020120147802
申请日：2012-12-17
CPC classification number: F02D41/3854 , F02D41/221 , F02D41/3082 , F02D41/3863 , F02D2041/1409 , F02D2041/1418 , F02D2041/226 , F02D2041/227 , F02D2200/0602 , F02D2250/31 , Y02T10/40
Abstract: 본 발명은 연소실 내에 연료를 직접 분사하는 가솔린 직접 분사(GDI; Gasoline Direct Injection) 엔진에서 연료의 공급압력을 제어하는 가솔린 직접 분사 엔진의 저압연료펌프 제어 방법 및 시스템에 관한 것이다. 이를 위한 본 발명의 실시예는, 저압연료펌프를 구비하는 저압시스템에서 1차 가압된 연료를, 고압연료펌프를 구비한 고압시스템에서 2차 가압하여 인젝터를 통해 연소실에 직접 분사하는 가솔린 직접 분사(GDI) 엔진의 저압연료펌프 제어 방법으로서, 상기 고압연료펌프의 고장 관련 정보를 입력받는 단계; 상기 고압연료펌프의 고장 관련 정보에 기초하여 상기 고압연료펌프가 고장인 것으로 판단되면, 상기 저압연료펌프의 연료압력을 설정 압력(AP 압력)으로 승압하는 단계; 상기 고압연료펌프가 고장이 아니면, 상기 고압연료펌프의 목표 연료압력 대비 측정 연료압력, 또는 상기 GDI 엔진의 제어값 변동을 기초로 상기 저압연료펌프의 연료압력을 제어하는 단계;를 포함할 수 있다.
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公开(公告)号：KR101316475B1
公开(公告)日：2013-10-08
申请号：KR1020110127452
申请日：2011-12-01
Inventor： 이범기
CPC classification number: F02D41/3854 , F02D41/042 , F02D41/062 , F02D41/3082 , F02D2200/0602
Abstract: 본 발명은 저압시스템과 고압시스템으로 구성되는 GDI엔진의 연료공급시스템에서, 차량의 연비 향상을 위해 저압시스템의 저압연료펌프를 가변제어 함에 따라 발생할 수 있는 엔진 운전상의 각종 문제점에 대비하여 상기 저압연료펌프를 제어하도록 함으로써, GDI엔진 탑재 차량의 연비를 향상시키면서도 GDI엔진의 안정된 운전성을 확보하여, 궁극적으로 차량의 상품성을 향상시킬 수 있도록 한다.
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公开(公告)号：KR1020130061248A
公开(公告)日：2013-06-11
申请号：KR1020110127452
申请日：2011-12-01
Inventor： 이범기
CPC classification number: F02D41/3854 , F02D41/042 , F02D41/062 , F02D41/3082 , F02D2200/0602
Abstract: PURPOSE: A method for controlling the low pressure fuel pump of a gasoline direct injection(GDI) engine is provided to improve the fuel efficiency of a vehicle mounted with the engine and to secure the stable drivability of the engine, thereby improving the marketability of the vehicle. CONSTITUTION: A method for controlling the low pressure fuel pump of a gasoline direct injection(GDI) engine actuates the pump(s32) in the key-on condition of a vehicle(s31) when the engine is stopped. The target fuel pressure of the pump is set to be higher than fuel efficiency pressure placing emphasis on fuel efficiency in a fuel pressure range formed by the pump. [Reference numerals] (S32) Drive a low pressure fuel pump[target fuel pressure=F(cooling temperature)>fuel efficiency pressure]
Abstract translation: 目的：提供一种用于控制汽油直喷（GDI）发动机的低压燃油泵的方法，以提高搭载发动机的车辆的燃油效率，并确保发动机的稳定驾驶性能，从而提高汽油直喷 车辆。 构成：当发动机停止时，用于控制汽油直喷（GDI）发动机的低压燃料泵的方法在车辆的钥匙状态（s31）下致动泵（s32）。 泵的目标燃料压力设定为高于燃料效率压力，强调由泵形成的燃料压力范围内的燃料效率。 （附图标记）（S32）驱动低压燃料泵[目标燃料压力= F（冷却温度）>燃料效率压力]
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公开(公告)号：KR1020140078439A
公开(公告)日：2014-06-25
申请号：KR1020120147802
申请日：2012-12-17
CPC classification number: F02D41/3854 , F02D41/221 , F02D41/3082 , F02D41/3863 , F02D2041/1409 , F02D2041/1418 , F02D2041/226 , F02D2041/227 , F02D2200/0602 , F02D2250/31 , Y02T10/40
Abstract: The present invention relates to a method and a system for controlling the low-pressure fuel pump of a gasoline direct injection (GDI) engine, wherein the method and system control the supply pressure of fuel in the GDI engine in which the fuel is directly injected into a combustion chamber. According to an embodiment of the present invention, the method for controlling the low-pressure fuel pump of the GDI engine in which the fuel primarily pressurized in a low-pressure system with the low-pressure fuel pump is directly injected into the combustion chamber through an injector after secondarily pressurized in a high-pressure system with a high-pressure fuel pump comprises: a step of receiving information about the malfunction of the high-pressure fuel pump; a step of raising fuel pressure in the low-pressure fuel pump to a set pressure (AP pressure) when the high-pressure fuel pump is judged to malfunction based on the information about the malfunction of the high-pressure fuel pump; and a step of controlling the fuel pressure in the low-pressure fuel pump based on measurement fuel pressure against target fuel pressure in the high-pressure fuel pump or the control value variation of the GDI engine when the high-pressure fuel pump does not malfunction.
Abstract translation: 本发明涉及一种用于控制汽油直喷（GDI）发动机的低压燃料泵的方法和系统，其中该方法和系统控制直接喷射燃料的GDI发动机中的燃料供应压力 进入燃烧室。 根据本发明的实施例，用于控制GDI发动机的低压燃料泵的方法，其中在具有低压燃料泵的低压系统中主要加压的燃料直接通过 在具有高压燃料泵的高压系统中二次加压的喷射器包括：接收关于高压燃料泵的故障的信息的步骤; 基于关于高压燃料泵的故障的信息，当高压燃料泵被判断为故障时，将低压燃料泵中的燃料压力提高到设定压力（AP压力）的步骤; 以及基于高压燃料泵中的目标燃料压力的测量燃料压力或者当高压燃料泵不发生故障时GDI发动机的控制值变化时，控制低压燃料泵中的燃料压力的步骤 。
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公开(公告)号：KR1020130045991A
公开(公告)日：2013-05-07
申请号：KR1020110110271
申请日：2011-10-27
CPC classification number: F02D41/32 , F02D41/045 , F02D41/3836 , F02D2200/0602 , F02D2200/0625 , F02D2200/602 , F02M51/04 , Y02T10/44
Abstract: PURPOSE: A fuel supply control method of a GDI(Gasoline Direct Injection) engine is provided to improve the fuel efficiency of a vehicle by reducing the energy consumption of a low-pressure pump and to improve the marketability of the vehicle by obtaining a drive ability of the vehicle. CONSTITUTION: A fuel supply control method of a GDI engine comprises: a data input step(S10) for inputting target fuel pressure and the fuel consumption of the engine; a criterion of determination step(S20) for determining whether the input fuel consumption is over a predetermined criterion meaning a rapid load change of the engine or not; an emergency reaction step(S30) for determining the duty of a motor and driving the motor according to the same; and a fuel pressure feedback control step(S40) for controlling feedback. [Reference numerals] (AA) No; (BB) Yes; (CC,EE) Fixed flux, Pressure feedback control; (DD,FF) Fixed pressure, Additional duty control for meeting a consumption flux; (S10) Target fuel pressure, Fuel consumption, Actual measurement fuel pressure; (S20) Fuel consumption >= Reference value ?; (S30) Determine a duty of a motor and drive the motor according to the fuel consumption and the target fuel pressure
Abstract translation: 目的：提供一种GDI（汽油直喷）发动机的燃料供给控制方法，通过降低低压泵的能量消耗，提高车辆的燃油效率，通过获得驾驶能力提高车辆的销售性 的车辆。 构成：GDI发动机的燃料供给控制方法包括：用于输入目标燃料压力和发动机的燃料消耗的数据输入步骤（S10） 用于确定输入燃料消耗是否超过意味着发动机的快速负载变化的预定标准的判定步骤（S20）的标准; 用于确定电动机的占空比并根据其的驱动电动机的应急响应步骤（S30）; 和用于控制反馈的燃料压力反馈控制步骤（S40）。 （附图标记）（AA）否; （BB）是的; （CC，EE）固定磁通，压力反馈控制; （DD，FF）固定压力，满足消耗通量的附加负荷控制; （S10）目标燃油压力，油耗，实际燃油压力; （S20）燃料消耗> =参考值α; （S30）根据燃料消耗和目标燃料压力，确定电动机的负荷并驱动电动机
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