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1. 发明授权

US10837393B2 Method for operating a diesel engine 有权
公开(公告)号：US10837393B2
公开(公告)日：2020-11-17
申请号：US15621277
申请日：2017-06-13
申请人： CONTINENTAL AUTOMOTIVE GMBH
发明人： Gerald Behrendt
IPC分类号： F02D41/38 , F02D41/24 , F02D41/30 , F02D41/12 , F02M37/00 , F02M37/08
CPC分类号： F02D41/3845 , F02D41/123 , F02D41/2432 , F02D41/3082 , F02D41/3809 , F02D41/3827 , F02M37/0023 , F02M37/08 , F02D2200/021 , F02D2200/101
摘要： A method for operating an engine in which fuel is supplied to the engine by a fuel pump and by a high-pressure fuel pump, and in which the speed of the fuel pump and/or the electrical current for feeding the fuel pump is controlled in accordance with a requirement variable, taking into account a determination specification. When the engine has changed to an overrun mode of operation, a calibration is performed and the speed of the fuel pump is detected and is maintained. Once the triggering pressure for a calibration valve has been reached, the pump current is detected, a bypass volumetric flow rate of the high-pressure fuel pump is determined during calibration using operating parameters and the triggering pressure for the calibration valve, the determined speed, the bypass volumetric flow rate and the determined pump current are used to calibrate the determination specification.

2. 发明申请

US20180017010A1 METHOD OF OPERATING AN INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：US20180017010A1
公开(公告)日：2018-01-18
申请号：US15648069
申请日：2017-07-12
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Stefano NIEDDU , Andrea MOLLAR
IPC分类号： F02D41/38 , F02M63/02 , F02M59/10 , F02D41/40 , F02D41/14
CPC分类号： F02D41/3872 , F02D41/1401 , F02D41/3809 , F02D41/3818 , F02D41/3827 , F02D41/3845 , F02D41/40 , F02D41/401 , F02D2041/1433 , F02D2200/0602 , F02D2200/0616 , F02M59/105 , F02M63/0245 , Y02T10/44
摘要： A method and apparatus are disclosed for determining the fuel quantity that is actually injected by a fuel injector in an internal combustion engine. A fuel injector is operated to perform a fuel injection. The first discharge stroke of the fuel pump is deactivated following a start of the fuel injection for preventing the discharge stroke from delivering fuel into the fuel rail. A value of a pressure drop caused into the fuel rail by the fuel injection is calculated. A value of a fuel quantity injected by the fuel injection is calculated on the basis of the calculated value of the pressure drop.

3. 发明申请

US20170292461A1 Controlling Combustion Processes In An Internal Combustion Engine 审中-公开
公开(公告)号：US20170292461A1
公开(公告)日：2017-10-12
申请号：US15507388
申请日：2015-08-10
申请人： Continental Automotive GmbH
发明人： Hong Zhang
IPC分类号： F02D41/00 , F02D13/02 , F02D41/38
CPC分类号： F02D41/009 , F02D13/0234 , F02D41/3809 , F02D41/3827 , F02D41/3845 , F02D41/40 , F02D2200/04 , F02D2200/0402 , F02D2200/0406 , F02D2200/0602 , F02D2200/0614 , F02D2200/0616 , F02M59/102 , Y02T10/44
摘要： The present disclosure relates to internal combustion engines. The teachings thereof may be embodied in methods and devices for controlling the combustion processes taking place in the cylinders of an internal combustion engine. A method for controlling a combustion process in an internal combustion engine may include: measuring an actual camshaft position; measuring the actual rail pressure; calculating a phase correction value based on the measured actual rail pressure and a mass of fuel to be injected; calculating corrected actual camshaft positions based on the measured actual camshaft position and the respective phase correction value; calculating a mass of air depending on the determined corrected actual camshaft position; and calculating a fuel injection mass based on the mass of air determined for each cylinder.

4. 发明授权

US09719457B2 System and method of detecting hydraulic start-of-injection 有权
公开(公告)号：US09719457B2
公开(公告)日：2017-08-01
申请号：US14690648
申请日：2015-04-20
申请人： Cummins Intellectual Property, Inc.
发明人： Paul V. Moonjelly , Richard A. Booth , Lester L. Peters , Jeffrey C. Huang , Phanindra Garimella
IPC分类号： F02D41/40 , F02D41/00 , F02D41/22 , F02D35/02 , F02D41/38 , F02D41/14
CPC分类号： F02D41/401 , F02D35/023 , F02D35/028 , F02D41/0085 , F02D41/009 , F02D41/1439 , F02D41/22 , F02D41/221 , F02D41/3809 , F02D2041/1432 , F02D2041/224 , F02D2041/389 , F02D2200/0618 , Y02T10/44
摘要： This disclosure provides system and method that can determine hydraulic start of injection (SOI) in engines using an in-cylinder pressure sensor. The system and method determine apparent heat release rate (AHRR) curve data for the cylinder from the pressure information provided by the in-cylinder pressure sensors, and the hydraulic SOI from the derivative of the AHRR curve data. The system and method provide diagnostic, control and/or compensation opportunities for fuel injector operation in high pressure fuel rail engine systems without use of expensive or complex fuel injector components.

5. 发明授权

US09719450B2 Method and apparatus for diagnosing a fuel pressure sensor 有权
公开(公告)号：US09719450B2
公开(公告)日：2017-08-01
申请号：US14384466
申请日：2013-03-07
申请人： Takeshi Miyaura , Yoshiyasu Ito , Nobuyoshi Takigawa
发明人： Takeshi Miyaura , Yoshiyasu Ito , Nobuyoshi Takigawa
IPC分类号： F02D41/22 , F02D41/14 , F02D41/38 , F02D41/26
CPC分类号： F02D41/222 , F02D41/1443 , F02D41/263 , F02D41/3809 , F02D2041/223
摘要： A device executes a power limiting process when the number of pressure sensors determined to be normal in a second determination process made by a second processing unit is smaller than or equal to one. When only one pressure sensor is determined to be normal through the second determination process, and when that pressure sensor and a pressure sensor connected to only a first processing unit are determined to be normal in a first determination process made by the first processing unit, a process associated with fuel injection based on a detected value of the pressure sensor determined to be normal in the second determination process is executed, and a degree of limiting engine power through the power limiting process is reduced as compared with when both the pressure sensors are determined to be abnormal in the first determination process.

6. 发明授权

US09670867B2 Systems and methods for fuel injection 有权
公开(公告)号：US09670867B2
公开(公告)日：2017-06-06
申请号：US14750332
申请日：2015-06-25
申请人： Ford Global Technologies, LLC
发明人： Joseph Norman Ulrey , Ross Dykstra Pursifull
IPC分类号： F02D41/38 , F02M55/02 , F02M59/46 , F02D41/30
CPC分类号： F02D41/3845 , F02D41/3094 , F02D41/3809 , F02D2041/3881 , F02D2041/389 , F02M37/0029 , F02M37/0047 , F02M55/025 , F02M59/464 , F02M59/466 , F02M63/0285
摘要： Methods and systems are provided for a direct injection fuel pump. In one example, pressure in a step chamber of the direct injection fuel pump may be regulated to a substantially constant pressure during an entire pump cycle including a compression stroke and a suction stroke.

7. 发明申请

US20170067408A1 Control Unit Of An Internal Combustion Engine 审中-公开
标题翻译：内燃机控制单元
公开(公告)号：US20170067408A1
公开(公告)日：2017-03-09
申请号：US15120339
申请日：2015-02-19
申请人： MAN Diesel & Turbo SE
发明人： Ulrich PROBST
IPC分类号： F02D41/38 , F02D41/00
CPC分类号： F02D41/3809 , F02D41/0002 , F02D41/0027 , F02D41/20 , F02D2041/001 , F02D2041/2003 , F02D2200/04
摘要： Control device of an internal combustion engine, namely, for controlling injectors or gas valves of a fuel supply system of the internal combustion engine, wherein the control device controls each injector for opening the same such that the voltage present at the respective injector changes between different voltage levels in a boost phase of the control as well as in a hold phase of the control, and wherein the control device controls the respective injector in the boost phase such that after reaching a defined boost current level the voltage present at the respective injector changes between a relatively low boost voltage level which is greater than zero volts and a relatively high boost voltage level which is greater than a supply voltage of the control device.
摘要翻译：内燃机的控制装置，即用于控制内燃机的燃料供给系统的喷射器或气阀，其中控制装置控制每个喷射器打开该喷射器，以使各个喷射器处存在的电压在不同的喷射器之间变化控制的升压阶段以及控制的保持阶段中的电压电平，并且其中控制装置在升压阶段控制相应的注射器，使得在达到限定的升压电流水平之后，存在于相应喷射器处的电压改变在大于零伏的相对低的升压电压和大于控制装置的电源电压的相对高的升压电压电平之间。

8. 发明授权

US09574515B2 Method for operating an internal combustion engine and corresponding internal combustion engine 有权
标题翻译：用于操作内燃机和相应的内燃机的方法
公开(公告)号：US09574515B2
公开(公告)日：2017-02-21
申请号：US14764058
申请日：2014-01-23
申请人： MTU Friedrichshafen GmbH
发明人： Ronald Hegner , Michael Willmann , Marc Radl
IPC分类号： F02D41/38 , F02M63/00 , F02D41/30 , F02D41/06 , F02D41/20 , F02M65/00
CPC分类号： F02D41/3809 , F02D41/062 , F02D41/20 , F02D41/3017 , F02M63/0015 , F02M65/008
摘要： A method for operating an internal combustion engine having at least one fuel injection valve for introducing fuel into a combustion chamber of the internal combustion engine, the valve being supplied with a specified current intensity in order to adjust a specified flow cross-section of a fuel fluidic connection in the combustion chamber. The maximum specified current intensity during normal operation is equal to a first current intensity and during a release operation is equal to a second, higher current intensity.
摘要翻译：一种用于操作内燃机的方法，所述内燃机具有至少一个用于将燃料引入内燃机的燃烧室的燃料喷射阀，所述阀被供给特定的电流强度，以便调节燃料的规定的流动横截面燃烧室内的流体连接。正常运行期间的最大规定电流强度等于第一电流强度，并且在释放操作期间等于第二较高的电流强度。

9. 发明授权

US09546992B2 Fuel property judgment device and method of judging fuel property 有权
标题翻译：燃料特性判断装置及燃料性质判断方法
公开(公告)号：US09546992B2
公开(公告)日：2017-01-17
申请号：US14723793
申请日：2015-05-28
申请人： DENSO CORPORATION
发明人： Naoyuki Yamada , Naoki Mikami
IPC分类号： G01N33/00 , G01N33/28 , F02D41/40 , F02D41/14 , F02D41/28 , F02D41/38
CPC分类号： G01N33/2835 , F02D41/1497 , F02D41/28 , F02D41/3809 , F02D41/40 , F02D2041/286 , F02D2041/288 , F02D2200/0602 , F02D2200/0612 , F02D2200/101
摘要： A fuel injection system has a common rail storing fuel, a fuel injector injecting the fuel, a fuel-passage supplying the fuel to the fuel injector, and a fuel-pressure sensor detecting a fuel pressure. An ECU acquires a waveform of a fuel pressure representing a change of a fuel pressure based on the detected fuel pressure at the fuel injection. The ECU calculates a speed of a fuel pressure wave forming the waveform of the fuel pressure based on a period of a pulsation of the waveform of the fuel pressure and a fuel passage length, and a fuel density based on the speed of the fuel pressure wave. The ECU further calculates a fuel cetane number, and a kinematic viscosity of the fuel based on the fuel density and the fuel cetane number. The ECU judges fuel properties based on the kinematic viscosity of the fuel.
摘要翻译：燃料喷射系统具有共轨存储燃料，喷射燃料的燃料喷射器，向燃料喷射器供应燃料的燃料通道以及检测燃料压力的燃料压力传感器。 ECU根据燃料喷射时的检测燃料压力，取得表示燃料压力变化的燃料压力的波形。 ECU根据燃料压力波形和燃料通路长度的脉动的周期，基于燃料压力波的速度，计算形成燃料压力波形的燃料压力波的速度。 ECU还根据燃料密度和燃料十六烷值计算燃料十六烷值和燃料的运动粘度。 ECU根据燃料的运动粘度来判断燃油特性。

10. 发明授权

US09476377B2 System, method, and apparatus for fuel injection control 有权
标题翻译：用于燃料喷射控制的系统，方法和装置
公开(公告)号：US09476377B2
公开(公告)日：2016-10-25
申请号：US14223733
申请日：2014-03-24
申请人： Cummins Inc.
发明人： Donald J. Benson
IPC分类号： F02D41/24 , F02D41/38 , F02D41/20 , F02D41/22
CPC分类号： F02D41/2467 , F02D41/221 , F02D41/3809 , F02D2041/2055 , F02D2041/224 , F02D2200/0602 , F02D2200/0606 , F02D2200/0616 , F02D2200/101
摘要： A method includes determining a stored injection relationship that includes a number of fuel performance parameters. In one form the fuel performance parameters are related to a particular shape, and may be related to a particular operating condition. The method includes determining a fuel performance outcome during a fuel injection event, and updating the stored injection relationship in response to the fuel performance outcome. The fuel performance outcome can be an injected fuel quantity.
摘要翻译：一种方法包括确定包括多个燃料性能参数的存储的喷射关系。在一种形式中，燃料性能参数与特定形状相关，并且可以与特定的操作条件有关。该方法包括在燃料喷射事件期间确定燃料性能结果，以及响应于燃料性能结果来更新所存储的喷射关系。燃油性能结果可以是喷油量。

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