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公开(公告)号：US20220364492A1
公开(公告)日：2022-11-17
申请号：US17862031
申请日：2022-07-11
申请人： Cummins Inc.
摘要： Systems and methods for controlling a performance variable of an engine system are provided. An apparatus includes a response model circuit structured to apply a constraint to a response model that represents a relationship regarding a manipulated variable or a relationship between the performance variable and the manipulated variable. The apparatus further includes an optimization circuit structured to determine a target for the manipulated variable via the response model such that the target of the manipulated variable satisfies the constraint of the response model. The performance variable is indicative of performance of operation of the engine system and the manipulated variable is capable of affecting the performance variable. Operation of the engine system is adjusted based upon the target of the manipulated variable by controlling at least one of a fuel system or an air handling system of the engine system.
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公开(公告)号：US20210192104A1
公开(公告)日：2021-06-24
申请号：US16720965
申请日：2019-12-19
申请人： Caterpillar Inc.
发明人： Derek A. Tanis
摘要： A method for generating data for an internal combustion engine control unit includes receiving at least one constraint by a simulated internal combustion engine, receiving a first value of an air condition by the simulated internal combustion engine, and determining at least one simulated engine parameter associated with a maximum expected output of the simulated internal combustion engine, wherein the maximum expected output is determined based on the first value and the at least one constraint. The method also includes supplementing existing engine information by storing the at least one simulated engine parameter in a memory associated with the internal combustion engine control unit together with the existing engine information.
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公开(公告)号：US20210040906A1
公开(公告)日：2021-02-11
申请号：US16531841
申请日：2019-08-05
发明人： Chi Ho Moon
摘要： A control method for CVVD apparatus at engine stop, the control method may include receiving, by a controller, vehicle operation information from an information detection portion, determining, by the controller, whether it corresponds to a stop of an engine through the vehicle operation information, determining, by the controller, a predetermined target valve duration of a CVVD apparatus according to a stopping type of the engine in the stop of the engine, controlling, by the controller, the valve duration of the CVVD apparatus according to the predetermined target valve duration determined by the controller, determining, by the controller, if a current RPM of the engine is lower than a predetermined control stop RPM, and stopping the controlling of the valve duration of the CVVD apparatus if the current RPM is lower than the predetermined control stop RPM.
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公开(公告)号：US10894462B2
公开(公告)日：2021-01-19
申请号：US16174717
申请日：2018-10-30
发明人： Tae Hun Jung , Jeong Sik Seo , Jaeyeon Moon
IPC分类号： F02D43/04 , B60H1/32 , B60W30/192 , B60W10/06 , B60W10/30
摘要： A system for controlling a compressor may include an engine controller that controls a fuel injection amount corresponding to an engine load and an opening amount of a throttle by reflecting a required torque required for an air conditioner (A/C), an operation information detector for detecting operation information according to driving state of the vehicle, a compressor that generates pressure during operation of the A/C, an air conditioner relay which is turned on when the air conditioner operates and is turned off when the A/C is stopped, and a controller which determines an engine negative pressure of an intake manifold, and when the cooling water temperature is lower than the predetermined temperature and the intake manifold pressure is lower than the first threshold value, a cold-start intake manifold negative pressure insufficient event is generated to reduce the A/C duty in accordance with the entry into a negative pressure recovery mode.
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公开(公告)号：US20200332758A1
公开(公告)日：2020-10-22
申请号：US16389094
申请日：2019-04-19
摘要： A standby generator includes an alternator to produce electricity for distribution to an electrical system, and an air-cooled internal combustion engine driving the alternator. The air-cooled internal combustion engine includes one or more cylinders, one or more spark plugs each configured to initiate combustion in a corresponding cylinder, and one or more ignition coils each coupled to a respective spark plug of the one or more spark plugs to provide a voltage to the respective spark plug. The standby generator also includes a battery system electrically coupled to the one or more ignition coils to provide power thereto, and a digital ignition module wiring the battery system to each of the one or more ignition coils to control operation of the one or more spark plugs.
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公开(公告)号：US10781761B2
公开(公告)日：2020-09-22
申请号：US16679314
申请日：2019-11-11
发明人： Junya Kobayashi
IPC分类号： F02M26/50 , F02M26/74 , F02D41/00 , F02D45/00 , B60W20/20 , F02D43/04 , B60W20/15 , B60W20/40 , F02D41/14
摘要： Corrosion control is periodically executed to corrode the entire surface of the engine part in contact with the condensate water. The corrosion control includes a set of an anterior half control and a posterior half control. The anterior half control is executed over a first period from time t2 to time t3. In the anterior half control, the engine 12 is operated in a predetermined operating region. The posterior half control is executed over a second period from time t3 to time t4.
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公开(公告)号：US10774778B2
公开(公告)日：2020-09-15
申请号：US15762472
申请日：2015-10-14
申请人： CUMMINS INC.
发明人： Phanindra V. Garimella , Paul V. Moonjelly , Edmund P. Hodzen , Ming-feng Hsieh , Gayatri Adi , Gokul Vishwanathan
IPC分类号： F02D43/04 , F02D41/00 , F02D37/00 , F02D41/14 , F02D41/26 , F02D41/02 , F01N9/00 , B01D53/94 , F01N3/20 , F02D41/30
摘要： A system for control of an internal combustion system having subsystems, each with different response times. Subsystems may include a fuel system, an air handling system, and an aftertreatment system, each being operated in response to a set of reference values generated by a respective target determiner. Calibration of each subsystem may be performed independently. The fuel system is controlled at a first time constant. The air handling system is controlled on the order of a second time constant slower than the first time constant. The aftertreatment system is controlled on the order of a third time constant slower than the second time constant. A subsystem manager is optionally in operative communication with each target determiner to coordinate control. Generally, dynamic parameters from slower subsystems are treated as static parameters when determining reference values for controlling a faster subsystem.
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公开(公告)号：US10753306B2
公开(公告)日：2020-08-25
申请号：US16508609
申请日：2019-07-11
发明人： Daichi Imai , Toshihiro Mori
摘要： The exhaust gas purification system includes a catalyst having an NOx storage and reduction function, an EGR passage, and a controller configured to control combustion of the internal combustion engine. The controller is configured to switch the operation mode from the lean burn operation to the rich burn operation, when a request for execution of the rich burn operation is issued during the lean burn operation. The controller is configured to perform, when the request the execution of the rich burn operation is issued, an NOx-increasing process in which the combustion of the internal combustion engine is controlled so that an in-cylinder NOx amount is equal to or larger than a required in-cylinder NOx amount prior to switching to the rich burn operation.
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公开(公告)号：US20200123993A1
公开(公告)日：2020-04-23
申请号：US16165683
申请日：2018-10-19
申请人： Deere & Company
发明人： John R. Koenigsfeld , Matthew R. Evers , Graham S. Anderson , Kevin M. Ver Lee , John C. Scheider
摘要： Engine systems and methods improve emission control through the use of concurrent HCI and EGR. An engine system includes at least two cylinders. A fuel system intermittently supplies a first fuel stream to the first cylinder and a second fuel stream to the second cylinder. An intake system supplies combustion air to the cylinders. An exhaust manifold has one or more interior chambers through which the exhaust gas from the cylinders passes. An EGR circuit is connected between the exhaust manifold and the intake system and includes an EGR valve. A controller operates the fuel system to supply the first fuel stream to deliver fuel to the exhaust system while operating the fuel system to stop the second fuel stream from delivering fuel to the exhaust system, and to open, concurrently with operating the fuel system to supply the first fuel stream, the EGR valve to supply the exhaust gas to the intake system.
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公开(公告)号：US20200072144A1
公开(公告)日：2020-03-05
申请号：US16553227
申请日：2019-08-28
申请人： BorgWarner Inc.
发明人： Joseph Powell McHenry , Paul Troxler , Robert Malcolm Wallace , Michael Harris , Robert Lotz , Michael J. Burkett
摘要： In accordance with one aspect of the present disclosure, a turbocharger includes a compressor having a compressor wheel, a turbine provided within a housing, and an exhaust gas recirculation (EGR) flow path. The EGR flow path includes a first fluid connection in the housing and located in proximity to the turbine, a second fluid connection located in proximity to a trailing edge of the compressor wheel, an EGR control valve disposed between the first fluid connection and the second fluid connection, the EGR control valve configured to selectively operate the turbocharger in a low-heat mode having an EGR up to 50% and an operational mode having an EGR rate typically less than 35%.
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