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公开(公告)号：US10011269B2
公开(公告)日：2018-07-03
申请号：US15365596
申请日：2016-11-30
IPC分类号： B60L9/00 , G05D11/00 , B60W20/15 , F02D41/38 , F02D41/30 , F02D41/26 , B60K6/44 , B60W10/02 , B60W10/30
CPC分类号： B60W20/15 , B60K6/44 , B60K6/48 , B60K2006/4825 , B60W10/02 , B60W10/06 , B60W10/08 , B60W10/30 , B60W20/50 , B60W50/0205 , B60W2050/0215 , B60W2510/0208 , B60W2510/0623 , B60W2710/30 , F02D41/22 , F02D41/26 , F02D41/3082 , F02D41/3854 , F02D2041/223 , F02D2200/0602 , F02D2250/02
摘要： Methods and systems are provided for diagnosing an in-range error of a pressure sensor arranged downstream of a lift pump in a fuel system of a vehicle. In one example, a method may include performing feedback control of the lift pump based on output of the pressure sensor, monitoring the pressure sensor output for flattening during the application of the voltage pulses, and adjusting operation of the fuel system depending on whether the pressure sensor output flattens for at least a threshold duration, which is indicative of an in-range error. The method may further include dynamically learning a setpoint pressure of a pressure relief valve of the fuel system and a fuel vapor pressure within the fuel system by monitoring pressure sensor output while adjusting the duty cycle of voltage pulses applied to the lift pump.
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公开(公告)号：US09995258B2
公开(公告)日：2018-06-12
申请号：US15048304
申请日：2016-02-19
申请人： DENSO CORPORATION
发明人： Hisaharu Takeuchi , Ryou Katsura
CPC分类号： F02M37/0052 , F02D33/006 , F02D41/0025 , F02D41/0027 , F02D41/042 , F02D41/3005 , F02D2200/0602 , F02D2200/0606 , F02D2250/02 , F02M21/0221 , F02M37/0029 , F02M37/0047 , F02M37/0088 , Y02T10/32
摘要： A fuel supply device includes a sub fuel tank disposed in a return fuel line, a pressure reduction valve, and a recirculation cutoff valve. When an internal combustion engine stops, the fuel supply device opens the pressure reduction valve and closes the recirculation cutoff valve. Due to this first transfer state, a liquefied gas fuel in a common rail is transferred to the sub fuel tank. Thereafter, the fuel supply device closes the pressure reduction valve and opens the recirculation cutoff valve. Due to this second transfer state, the liquefied gas fuel in the sub fuel tank is transferred to a main fuel tank. The fuel supply device repeatedly alternates between the first and second transfer states to collect the liquefied gas fuel from the common rail to the main fuel tank.
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公开(公告)号：US20180148037A1
公开(公告)日：2018-05-31
申请号：US15365596
申请日：2016-11-30
CPC分类号： B60W20/15 , B60K6/44 , B60W10/02 , B60W10/30 , B60W2510/0208 , B60W2710/30 , F02D41/22 , F02D41/26 , F02D41/3082 , F02D41/3854 , F02D2041/223 , F02D2200/0602 , F02D2250/02
摘要： Methods and systems are provided for diagnosing an in-range error of a pressure sensor arranged downstream of a lift pump in a fuel system of a vehicle. In one example, a method may include performing feedback control of the lift pump based on output of the pressure sensor, monitoring the pressure sensor output for flattening during the application of the voltage pulses, and adjusting operation of the fuel system depending on whether the pressure sensor output flattens for at least a threshold duration, which is indicative of an in-range error. The method may further include dynamically learning a setpoint pressure of a pressure relief valve of the fuel system and a fuel vapor pressure within the fuel system by monitoring pressure sensor output while adjusting the duty cycle of voltage pulses applied to the lift pump.
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公开(公告)号：US20160273462A1
公开(公告)日：2016-09-22
申请号：US15066336
申请日：2016-03-10
发明人： Takashi SUZUKI
CPC分类号： F02D33/006 , B60H1/004 , B60H1/00428 , B60H1/00735 , B60K6/365 , B60K6/445 , B60W10/06 , B60W10/08 , B60W10/30 , B60W20/00 , B60W20/15 , B60W30/194 , B60W2510/085 , B60W2510/305 , B60W2710/305 , F02D1/08 , F02D37/00 , F02D41/06 , F02D41/064 , F02D41/3082 , F02D41/3094 , F02D41/3836 , F02D2001/082 , F02D2041/3881 , F02D2200/0602 , F02D2200/503 , F02D2250/02 , F02D2250/31 , F02M63/029 , F02N11/003 , F02N11/04 , F02N11/0862 , F02N11/10 , F02N19/00 , F02N2200/022 , F02N2200/061 , Y02T10/6239 , Y02T10/6286
摘要： A control apparatus for a vehicle may include an engine, a fuel tank, a feed pump, a pressure sensor, a motor and an electric storage apparatus. The feed pump feeds the fuel to a port injection valve. The pressure sensor detects a fuel pressure that is fed to the port injection valve. The motor performs cranking of the engine at start time of the engine. The control apparatus includes an ECU. The ECU controls the feed pump based on a detection value of the pressure sensor and controls the motor in order to start the engine. The ECU controls the feed pump and the motor such that the electric storage apparatus feeds electric power to the motor in preference to the feed pump, when an electric power that the electric storage apparatus is able to output at the start time of the engine is less than a determination threshold.
摘要翻译： 用于车辆的控制装置可以包括发动机，燃料箱，进给泵，压力传感器，电动机和蓄电装置。 进料泵将燃料送入端口喷射阀。 压力传感器检测送入端口喷射阀的燃料压力。 在发动机起动时，电动机起动发动机。 控制装置包括ECU。 ECU基于压力传感器的检测值控制进给泵，并控制电机以启动发动机。 ECU在发动机起动时能够输出电力的情况下，控制供给泵和电动机，使蓄电装置优先于供给泵向电动机供给电力。 比确定阈值。
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公开(公告)号：US20160208747A1
公开(公告)日：2016-07-21
申请号：US14914388
申请日：2014-08-21
申请人： DENSO CORPORATION
发明人： Yuuji HIDAKA , Masaya OOTAKE , Kiyoshi NAGATA
CPC分类号： F02M37/08 , F02D33/003 , F02D41/0025 , F02D41/3082 , F02D2200/0602 , F02D2250/02 , F02M37/10 , F02M37/20 , F02M2037/085 , F04D3/005 , F04D13/06 , F04D15/0066 , F04D29/181 , F04D29/528
摘要： An ECU of a fuel pump executes a feedback control to drive a motor part and sets a rotation speed of an impeller to become a rotation speed corresponding to the target fuel pressure. The ECU detects whether a vapor is generated in a fuel of a pump chamber of the fuel pump, based on a fuel pressure detected by a pressure sensor. When a generation of the vapor is detected, the ECU sets a rotation speed of the impeller to be higher than the rotation speed under a normal control for a predetermined time with a result that the vapor in the pump chamber and a fuel flow channel is discharged into a vapor discharge hole. Thus, the vapor of the pump chamber is discharged from the vapor discharge hole to an outside of the fuel pump.
摘要翻译： 燃料泵的ECU执行反馈控制以驱动电动机部件并且将叶轮的转速设定为与目标燃料压力相对应的转速。 基于由压力传感器检测到的燃料压力，ECU检测在燃料泵的泵室的燃料中是否产生蒸气。 当检测到蒸汽的产生时，ECU将正常控制下的叶轮的转速设定为高于旋转速度一定时间，结果是泵室内的蒸气和燃料流路被排出 进入蒸汽排放孔。 因此，泵室的蒸气从蒸汽排出孔排出到燃料泵的外部。
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公开(公告)号：US20140350800A1
公开(公告)日：2014-11-27
申请号：US14362415
申请日：2013-01-09
发明人： Hajime Yoshida , Shuuhei Noguchi , Makoto Motozu
CPC分类号： E02F9/2246 , E02F3/325 , E02F9/2285 , E02F9/2296 , F02D1/16 , F02D29/02 , F02D31/007 , F02D31/008 , F02D41/064 , F02D41/065 , F02D2001/167 , F02D2200/021 , F02D2250/02 , F02N11/106
摘要： A control device for driving/controlling an engine on the basis of a signal from a temperature state detector, a rotation detector, and a rotational speed setting device is provided. The control device includes a start temperature determining processing unit configured to determine whether or not a temperature (T) at start of the engine is less than a predetermined temperature (Tw1) and a start control processing is performed in accordance with a set value of a target rotational speed (Nset) by the rotational speed setting device in case the start temperature (T) is equal to or less than the predetermined temperature (Tw1). This suppresses occurrence of cavitation by stopping the start of the engine (10) within a range in which the temperature (T) is equal to or lower than the predetermined temperature (Tw1) and the target rotational speed (Nset) of the engine (10) is higher than a predetermined threshold value (Nca).
摘要翻译： 提供了一种用于根据来自温度状态检测器，旋转检测器和转速设定装置的信号来驱动/控制发动机的控制装置。 控制装置包括：起动温度决定处理部，其判定发动机起动时的温度（T）是否小于规定温度（Tw1），根据设定值 在开始温度（T）等于或小于预定温度（Tw1）的情况下，转速设定装置的目标转速（Nset）。 通过将发动机（10）的启动停止在温度（T）等于或低于发动机（10）的预定温度（Tw1）和目标转速（Nset）的范围内，从而抑制气蚀的发生 ）高于预定阈值（Nca）。
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7.发明申请SYSTEM AND METHOD FOR CONTROLLING A LOW PRESSURE PUMP TO PREVENT VAPORIZATION OF FUEL AT AN INLET OF A HIGH PRESSURE PUMP 有权用于控制低压泵以防止高压泵入口处的燃料蒸发的系统和方法公开(公告)号：US20140251269A1
公开(公告)日：2014-09-11
申请号：US13788317
申请日：2013-03-07
IPC分类号： F02D1/02
CPC分类号： F02D1/02 , F02D41/18 , F02D41/3082 , F02D41/3854 , F02D2200/021 , F02D2200/0414 , F02D2200/0602 , F02D2200/0608 , F02D2250/02 , F02M37/0058 , F02M37/20 , F02M59/366
摘要： A system according to the principles of the present disclosure includes a pump control module and a fuel vaporization module. The pump control module controls a first pump to deliver fuel from a fuel tank to a second pump through a fuel line. The pump control module controls the second pump to pressurize fuel from the fuel line and to deliver the pressurized fuel to a fuel rail. The fuel vaporization module determines whether fuel at an inlet of the second pump is vaporizing based on an engine operating condition. The pump control module increases an output of the first pump when fuel at the inlet of the second pump is vaporizing.
摘要翻译： 根据本公开的原理的系统包括泵控制模块和燃料蒸发模块。 泵控制模块控制第一泵以将燃料从燃料箱输送到通过燃料管线的第二泵。 泵控制模块控制第二泵对来自燃料管线的燃料加压并将加压燃料输送到燃料轨。 燃料蒸发模块基于发动机工作条件确定第二泵的入口处的燃料是否蒸发。 当第二泵的入口处的燃料蒸发时，泵控制模块增加第一泵的输出。
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8.发明授权Method for controlling a fuel injection system of an internal combustion engine 有权用于控制内燃机的燃料喷射系统的方法公开(公告)号：US08793059B2
公开(公告)日：2014-07-29
申请号：US12739150
申请日：2008-09-11
申请人： Oliver Albrecht , Frank Mueller , Bernd Schroeder , Jens Wolber , Markus Amler , Timm Hollmann , Christian Wiedmann
发明人： Oliver Albrecht , Frank Mueller , Bernd Schroeder , Jens Wolber , Markus Amler , Timm Hollmann , Christian Wiedmann
CPC分类号： F02D41/3854 , F02D2200/0602 , F02D2200/0614 , F02D2250/02 , F02D2250/31 , F02M59/34 , F02M59/366
摘要： In a method for controlling a fuel injection system (10) of an internal combustion engine, wherein the fuel injection system (10) comprises a manifold (24) and a high-pressure pump (20) and a fuel dosing unit (16) is associated with the high-pressure pump (20), wherein the fuel dosing unit (16) controls the amount of fuel delivered, an amount of fuel required for the operation of the internal combustion engine is determined as a function of a correction factor, which is based on a fuel pressure at the inlet of the high-pressure pump (20) and/or on a vapor pressure of the fuel to be delivered.
摘要翻译： 在一种用于控制内燃机的燃料喷射系统（10）的方法中，其中所述燃料喷射系统（10）包括歧管（24）和高压泵（20）和燃料计量单元（16） 与所述高压泵（20）相关联，其中所述燃料计量单元（16）控制所输送的燃料的量，所述内燃机的操作所需的燃料量被确定为校正因子的函数， 是基于高压泵（20）的入口处的燃料压力和/或基于要输送的燃料的蒸汽压力。
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公开(公告)号：US20140000571A1
公开(公告)日：2014-01-02
申请号：US13920508
申请日：2013-06-18
申请人： Fuecotech, Inc.
发明人： Victor Gurin , Igor Gachik , Serguei Permiakov , Roman Press , Leonid Faynberg , Aleksandr Reshetnyak
CPC分类号： F02D41/0025 , F02D41/3845 , F02D2250/02 , F02M23/12 , F02M26/19 , F02M37/0064 , F02M63/0225 , F23K5/10 , Y02E20/324 , Y02T10/146
摘要： The present invention relates to a system and method for providing fuel to internal combustion engines including fuel activation prior to injection. The method carried out by the system comprises dissolving a mixture of gasses providing improved fuel dispersing after fuel injection into a combustion chamber. Dissolved gasses desorption is stimulated from a unsaturated fuel solution. Full control of fuel flows with dissolved gas/gasses to and from injectors and FET technology based on Henry's law (dissolving gasses in the liquids) and Kelvin principle (vapor pressure over droplet surface). The system consists of compact components, including exhaust gasses recirculation system which can be easily added to existing diesel and gasoline engine fuel supply systems. The method and system were tested with four different types of engines and provides fuel economy in 12-20% decrease of emissions and up to 25% at variable engine loads and significantly at engine cold start.
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公开(公告)号：US20130138327A1
公开(公告)日：2013-05-30
申请号：US13814759
申请日：2010-10-27
申请人： Susumu Kojima
发明人： Susumu Kojima
IPC分类号： F02D41/30
CPC分类号： F02D41/3005 , F02D41/3845 , F02D41/3854 , F02D2041/1409 , F02D2200/0602 , F02D2250/02 , F02M59/366
摘要： An object of the invention is to provide a technology that enables to make the feed pressure as low as possible without inviting a misfire or a deviation of the air-fuel ratio, in a fuel injection control system for an internal combustion engine equipped with a low pressure fuel pump and a high pressure fuel pump. According to the invention, to achieve the object, in a fuel injection control system for an internal combustion engine in which fuel discharged from a low pressure fuel pump is supplied to a fuel injection valve with its pressure boosted by a high pressure fuel pump, while a lowering process of lowering feed pressure or the discharge pressure of a the low pressure fuel pump, the lowering process is suspended and restarted with reference to the tendency of change in an integral term used in a proportional-integral control of the duty cycle of the high pressure fuel pump.
摘要翻译： 本发明的目的是提供一种技术，其能够在配备有低温的内燃机的燃料喷射控制系统中使得进料压力尽可能低而不引起空燃比的失火或偏差 高压燃油泵和高压燃油泵。 根据本发明，为了达到上述目的，在内燃机的燃料喷射控制装置中，由低压燃料泵排出的燃料以高压燃料泵升压的方式供给燃料喷射阀，同时 降低低压燃料泵的进料压力或排出压力的降低过程，参照在比例积分控制中使用的积分项的变化趋势来暂停并重启降低过程 高压燃油泵。
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