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公开(公告)号：US20220065181A1
公开(公告)日：2022-03-03
申请号：US17454204
申请日：2021-11-09
摘要： A method provides for operating an engine configured to use a plurality of differing fuels. The method includes determining a fuel combustion ratio of the plurality of differing fuels associated with at least one engine cylinder of the engine based at least in part on one or more of a plurality of characteristic profiles. This maintains one or more of a plurality of actual values associated with usage of the plurality of differing fuels relative to defined corresponding threshold values. The fuel combustion ratio includes a ratio of the plurality of differing fuels to be delivered to the at least one engine cylinder. A fuel delivery system delivers the plurality of differing fuels to the at least one engine cylinder based on the fuel combustion ratio.
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公开(公告)号：US11952935B2
公开(公告)日：2024-04-09
申请号：US17447552
申请日：2021-09-13
IPC分类号： F02B3/08 , F02D19/06 , F02D19/08 , F02D19/10 , F02D29/02 , F02D35/02 , F02D41/00 , F02D41/14 , F02D41/40 , F02B43/00 , F02D41/30 , F02M21/02 , F02M26/05 , F02M26/23 , F02M26/43 , F02M37/00
CPC分类号： F02B3/08 , F02D19/061 , F02D19/0692 , F02D19/081 , F02D19/082 , F02D19/10 , F02D19/105 , F02D29/02 , F02D35/027 , F02D41/0025 , F02D41/0027 , F02D41/1497 , F02D41/401 , F02B43/00 , F02D41/008 , F02D41/3047 , F02M21/0278 , F02M26/05 , F02M26/23 , F02M26/43 , F02M37/0064 , Y02T10/30 , Y02T10/40
摘要： Methods and systems are provided for maintaining combustion stability in a multi-fuel engine. In one example, a system may include first and second fuel systems to deliver liquid and gaseous fuels, respectively, to at least one cylinder of the engine, and a controller. The controller may be configured to supply the gaseous fuel to the at least one cylinder, inject the liquid fuel to the at least one cylinder to compression ignite the liquid fuel and combust the gaseous fuel in the at least one cylinder, and retard an injection timing of the injection of the liquid fuel based on a measured parameter associated with auto-ignition of end gases subsequent to the compression-ignition of the liquid fuel. In some examples, the controller may further be configured to adjust an amount of the gaseous fuel relative to an amount of the liquid fuel based on the measured parameter.
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公开(公告)号：US11643986B2
公开(公告)日：2023-05-09
申请号：US17454204
申请日：2021-11-09
CPC分类号： F02D41/0027 , F02D19/081 , F02D29/02 , F02D41/0025 , F02D2200/0625 , F02D2200/701 , Y02T10/30
摘要： A method provides for operating an engine configured to use a plurality of differing fuels. The method includes determining a fuel combustion ratio of the plurality of differing fuels associated with at least one engine cylinder of the engine based at least in part on one or more of a plurality of characteristic profiles. This maintains one or more of a plurality of actual values associated with usage of the plurality of differing fuels relative to defined corresponding threshold values. The fuel combustion ratio includes a ratio of the plurality of differing fuels to be delivered to the at least one engine cylinder. A fuel delivery system delivers the plurality of differing fuels to the at least one engine cylinder based on the fuel combustion ratio.
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公开(公告)号：US20210301714A1
公开(公告)日：2021-09-30
申请号：US17345679
申请日：2021-06-11
摘要： An engine control unit of a multi-fuel is provided. The engine consumes a mixture of a first combustion fuel and a second combustion fuel. The engine control unit includes hardware circuitry that includes one or more processors configured to calculate an autoignition delay of the mixture of the air and the second combustion fuel based on current operating conditions of the multi-fuel engine. The one or more processors also are configured to calculate an upper limit on an amount of the second combustion fuel that is supplied to the multi-fuel engine based on the autoignition delay that is calculated.
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公开(公告)号：US11480116B2
公开(公告)日：2022-10-25
申请号：US16438241
申请日：2019-06-11
IPC分类号： F02D19/08 , F02D19/06 , F02D41/00 , B61C17/12 , F02D41/02 , F02D25/00 , F02D29/02 , F02D41/14 , F02B29/04 , F02D41/26
摘要： Embodiments of methods and systems related to operating a mobile asset are provided. In one example, a method for operating a mobile asset includes supplying an engine with a fuel controller a first amount of a first fuel and a second amount of a second fuel and combusting the first fuel and the second fuel at a fuel combustion ratio in at least one cylinder of the engine, the first amount and the second amount being selected based on route information for a route along which the mobile asset is operable to travel and a projected exhaustion of the first fuel that does not precede a projected exhaustion of the second fuel, wherein the mobile asset is unable to operate with the second fuel alone.
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公开(公告)号：US11905897B2
公开(公告)日：2024-02-20
申请号：US17450553
申请日：2021-10-11
IPC分类号： F02D19/08 , F02D19/06 , F02D41/00 , B61C17/12 , F02D41/02 , F02D25/00 , F02D29/02 , F02D41/14 , F02B29/04 , F02D41/26
CPC分类号： F02D19/081 , B61C17/12 , F02D19/0618 , F02D19/0647 , F02D25/00 , F02D29/02 , F02D41/0025 , F02D41/0027 , F02D41/021 , B60W2530/213 , B60W2552/20 , B60W2556/50 , F02B29/0425 , F02B29/0437 , F02D41/1444 , F02D41/266 , F02D2200/701 , F02D2250/36 , Y02T10/30 , Y02T30/00
摘要： Embodiments of methods and systems related to operating a mobile asset are provided. In one example, a method for operating a mobile asset includes adjusting a fuel combustion ratio of a plurality of mobile assets based on an emission type exceeding a corresponding threshold, wherein the fuel combustion ratio includes a plurality of fuel types.
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公开(公告)号：US11719152B2
公开(公告)日：2023-08-08
申请号：US17345679
申请日：2021-06-11
IPC分类号： F02D41/00 , F02B3/08 , F02D41/40 , F02D35/02 , F02D19/06 , F02D19/10 , F02D29/02 , F02D41/30 , F02M26/43 , F02M26/05 , F02M26/23
CPC分类号： F02B3/08 , F02D19/061 , F02D19/0692 , F02D19/105 , F02D29/02 , F02D35/027 , F02D41/0025 , F02D41/401 , F02D41/008 , F02D41/3047 , F02M26/05 , F02M26/23 , F02M26/43 , Y02T10/30 , Y02T10/40
摘要： An engine control unit of a multi-fuel is provided. The engine consumes a mixture of a first combustion fuel and a second combustion fuel. The engine control unit includes hardware circuitry that includes one or more processors configured to calculate an autoignition delay of the mixture of the air and the second combustion fuel based on current operating conditions of the multi-fuel engine. The one or more processors also are configured to calculate an upper limit on an amount of the second combustion fuel that is supplied to the multi-fuel engine based on the autoignition delay that is calculated.
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公开(公告)号：US11473515B2
公开(公告)日：2022-10-18
申请号：US16942516
申请日：2020-07-29
摘要： A method provides for operating an engine configured to use a plurality of differing fuels. The method includes determining a fuel combustion ratio of the plurality of differing fuels associated with at least one engine cylinder of the engine based at least in part on one or more of a plurality of characteristic profiles. This maintains one or more of a plurality of actual values associated with usage of the plurality of differing fuels relative to defined corresponding threshold values. The fuel combustion ratio includes a ratio of the plurality of differing fuels to be delivered to the at least one engine cylinder. A fuel delivery system delivers the plurality of differing fuels to the at least one engine cylinder based on the fuel combustion ratio.
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公开(公告)号：US20220025826A1
公开(公告)日：2022-01-27
申请号：US17450553
申请日：2021-10-11
摘要： Embodiments of methods and systems related to operating a mobile asset are provided. In one example, a method for operating a mobile asset includes adjusting a fuel combustion ratio of a plurality of mobile assets based on an emission type exceeding a corresponding threshold, wherein the fuel combustion ratio includes a plurality of fuel types.
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公开(公告)号：US20210404372A1
公开(公告)日：2021-12-30
申请号：US17447552
申请日：2021-09-13
摘要： Methods and systems are provided for maintaining combustion stability in a multi-fuel engine. In one example, a system may include first and second fuel systems to deliver liquid and gaseous fuels, respectively, to at least one cylinder of the engine, and a controller. The controller may be configured to supply the gaseous fuel to the at least one cylinder, inject the liquid fuel to the at least one cylinder to compression ignite the liquid fuel and combust the gaseous fuel in the at least one cylinder, and retard an injection timing of the injection of the liquid fuel based on a measured parameter associated with auto-ignition of end gases subsequent to the compression-ignition of the liquid fuel. In some examples, the controller may further be configured to adjust an amount of the gaseous fuel relative to an amount of the liquid fuel based on the measured parameter.
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