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公开(公告)号：US20230356709A1
公开(公告)日：2023-11-09
申请号：US17662172
申请日：2022-05-05
发明人： Maruthi Ravichandran , Marin Assaliyski , Nicholas D. Moore , Calvin Trescott , Naginder Gogna , Rajit Johri
CPC分类号： B60W20/40 , B60W10/02 , B60W10/06 , F02N11/0851 , B60W2510/0275 , B60W2710/021 , B60W2710/06 , B60W2540/10 , B60W2510/1005 , F02N2200/101 , F02N2200/0802
摘要： Systems and methods for selecting which of a plurality of engine starting devices starts an internal combustion engine of a hybrid vehicle are presented. In one example, engine starting devices may be selected and operated while a vehicle is operating in a creep mode. The system and method may place a driveline disconnect clutch in a wait state or engage a flywheel starter to improve engine starting.
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公开(公告)号：US10167806B2
公开(公告)日：2019-01-01
申请号：US15586146
申请日：2017-05-03
发明人： Gopichandra Surnilla , Adithya Pravarun Re Ranga , Mohannad Hakeem , Calvin Trescott , Joseph Norman Ulrey , Peter C. Moilanen
IPC分类号： F02D41/00 , F01N3/02 , F01N11/00 , F02D41/30 , F02D41/02 , F02D41/14 , F02D41/12 , F02D41/10 , F01N3/10 , F01N3/36 , F01N3/021
摘要： Methods and systems are provided for adjusting engine operating conditions for reduction of NOx emissions. In one example, immediately after a fuel shut-off event, in response to an oxygen content of an exhaust catalyst being higher than a threshold, manifold charge cooling may be increased by increasing the portion of fuel delivered to the engine via manifold injection relative to the portion to fuel delivered via one or more of port and direct injection. By increasing manifold cooling, NOx production may be reduced.
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公开(公告)号：US20230287858A1
公开(公告)日：2023-09-14
申请号：US17654554
申请日：2022-03-11
发明人： Maruthi Ravichandran , Calvin Trescott , Nicholas David Moore , Rajit Johri , Naginder Gogna , Ralph Cunningham
IPC分类号： F02N11/08 , B60W20/40 , B60W10/02 , B60W10/08 , B60W30/18 , B60W10/06 , F02N11/04 , B60W20/10
CPC分类号： F02N11/0803 , B60W20/40 , B60W10/02 , B60W10/08 , B60W30/18063 , B60W10/06 , F02N11/04 , B60W20/10 , F02N2200/102 , F02N2200/101 , F02N2200/022 , B60W2540/12 , B60W2540/10
摘要： Systems and methods for operating a hybrid vehicle are presented. In one example, an integrated starter/generator (ISG) is operated in a speed control mode after an engine stop request. The ISG is prevented from stopping while engine rotational speed is greater than a threshold engine rotational speed so that the engine may be restarted via the ISG.
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公开(公告)号：US20180202383A1
公开(公告)日：2018-07-19
申请号：US15409322
申请日：2017-01-18
发明人： Kutaiba Alrefaai , Adithya Pravarun Re Ranga , Calvin Trescott , Mohannad Hakeem , Stephen B. Smith , Gopichandra Surnilla
IPC分类号： F02D41/30
CPC分类号： F02D41/3094 , F02D2200/0414 , F02D2200/0418
摘要： Methods and systems are provided for leveraging the charge cooling effect of a manifold fuel injection. A charge cooling effect of a scheduled manifold fuel injection may be predicted based on feedback received from a manifold charge temperature sensor during a preceding manifold injection event. If sufficient charge cooling is not predicted, the manifold fuel injection is temporarily disabled.
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公开(公告)号：US11965476B2
公开(公告)日：2024-04-23
申请号：US17443925
申请日：2021-07-28
CPC分类号： F02N11/0859 , F02N5/04 , F02N11/04 , F02N2200/105 , F02N2200/123 , F02N2200/124 , F02N2200/125
摘要： Systems and methods for starting an engine of a hybrid vehicle are described. In one example, the method selects one or more electric machines to start an engine. The method may reference a data structure, such as a matrix or table, and the matrix or table outputs which of the one or more electric machines is applied to start the engine.
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公开(公告)号：US20230031444A1
公开(公告)日：2023-02-02
申请号：US17443925
申请日：2021-07-28
摘要： Systems and methods for starting an engine of a hybrid vehicle are described. In one example, the method selects one or more electric machines to start an engine. The method may reference a data structure, such as a matrix or table, and the matrix or table outputs which of the one or more electric machines is applied to start the engine.
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公开(公告)号：US20180320625A1
公开(公告)日：2018-11-08
申请号：US15586108
申请日：2017-05-03
发明人： Gopichandra Surnilla , Adithya Pravarun Re Ranga , Mohannad Hakeem , Joseph Norman Ulrey , Calvin Trescott
CPC分类号： F02D41/3094 , F01N3/021 , F01N9/002 , F02D35/027 , F02D35/028 , F02D41/029 , F02D41/1498 , F02D41/402 , F02D41/403 , F02D2200/025 , F02M69/044 , F02M69/045 , F02M69/046 , G01M15/11 , G01M15/12
摘要： Methods and systems are provided for adjusting engine operating conditions for mitigation of pre-ignition in one or more engine cylinder. In one example, a method may include, in response to indication of pre-ignition, manifold charge cooling may be increased by increasing the portion of fuel delivered to the engine via manifold injection relative to the portion to fuel delivered via one or more of port and direct injection, while maintaining engine operation at or around a stoichiometric air-fuel ratio.
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公开(公告)号：US20180320626A1
公开(公告)日：2018-11-08
申请号：US15586146
申请日：2017-05-03
发明人： Gopichandra Surnilla , Adithya Pravarun Re Ranga , Mohannad Hakeem , Calvin Trescott , Joseph Norman Ulrey , Peter C. Moilanen
CPC分类号： F02D41/3094 , F01N3/021 , F01N3/10 , F01N3/36 , F01N9/00 , F01N11/002 , F01N11/007 , F01N2250/02 , F01N2430/06 , F01N2560/025 , F01N2560/06 , F01N2900/08 , F01N2900/1402 , F01N2900/1602 , F01N2900/1606 , F01N2900/1614 , F01N2900/1624 , F01N2900/1626 , F02D41/0087 , F02D41/023 , F02D41/0235 , F02D41/0255 , F02D41/0295 , F02D41/064 , F02D41/10 , F02D41/12 , F02D41/123 , F02D41/126 , F02D41/1441 , F02D41/1454 , F02D41/1456 , F02D41/146 , F02D41/1461 , F02D41/1495 , F02D2041/001 , F02D2200/1002 , F02D2200/101 , F02M25/028 , F02M26/06 , Y02T10/42 , Y02T10/47
摘要： Methods and systems are provided for adjusting engine operating conditions for reduction of NOx emissions. In one example, immediately after a fuel shut-off event, in response to an oxygen content of an exhaust catalyst being higher than a threshold, manifold charge cooling may be increased by increasing the portion of fuel delivered to the engine via manifold injection relative to the portion to fuel delivered via one or more of port and direct injection. By increasing manifold cooling, NOx production may be reduced.
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公开(公告)号：US10119490B1
公开(公告)日：2018-11-06
申请号：US15586108
申请日：2017-05-03
发明人： Gopichandra Surnilla , Adithya Pravarun Re Ranga , Mohannad Hakeem , Joseph Norman Ulrey , Calvin Trescott
IPC分类号： F01N3/02 , F01N3/10 , F01N3/20 , F02D41/02 , F02D35/02 , F02D41/30 , F02D41/14 , F02M69/04 , F01N9/00 , F02D41/40 , F01N3/021 , G01M15/11 , G01M15/12
CPC分类号： F02D41/3094 , F01N3/021 , F01N9/002 , F02D35/027 , F02D35/028 , F02D41/029 , F02D41/1498 , F02D41/402 , F02D41/403 , F02D2200/025 , F02M69/044 , F02M69/045 , F02M69/046 , G01M15/11 , G01M15/12
摘要： Methods and systems are provided for adjusting engine operating conditions for mitigation of pre-ignition in one or more engine cylinder. In one example, a method may include, in response to indication of pre-ignition, manifold charge cooling may be increased by increasing the portion of fuel delivered to the engine via manifold injection relative to the portion to fuel delivered via one or more of port and direct injection, while maintaining engine operation at or around a stoichiometric air-fuel ratio.
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公开(公告)号：US10066571B2
公开(公告)日：2018-09-04
申请号：US15409322
申请日：2017-01-18
发明人： Kutaiba Alrefaai , Adithya Pravarun Re Ranga , Calvin Trescott , Mohannad Hakeem , Stephen B. Smith , Gopichandra Surnilla
IPC分类号： F02D41/30
CPC分类号： F02D41/3094 , F02D41/047 , F02D41/1402 , F02D2041/1412 , F02D2200/0402 , F02D2200/0414 , F02D2200/0418
摘要： Methods and systems are provided for leveraging the charge cooling effect of a manifold fuel injection. A charge cooling effect of a scheduled manifold fuel injection may be predicted based on feedback received from a manifold charge temperature sensor during a preceding manifold injection event. If sufficient charge cooling is not predicted, the manifold fuel injection is temporarily disabled.
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