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11.发明申请公开(公告)号：US20170211495A1
公开(公告)日：2017-07-27
申请号：US15005989
申请日：2016-01-25
Applicant: Ford Global Technologies, LLC
Inventor： Lyth Alobiedat , Gopichandra Surnilla , Daniel A. Makled , Mohannad Hakeem , Richard E. Soltis , Michael McQuillen , Stephen B. Smith
CPC classification number: F02D41/1454 , F01N13/008 , F02D41/1441 , F02D41/1456 , F02D41/1458 , F02D41/1486 , F02D41/28 , F02D2041/281 , G01M15/104
Abstract: A method for an engine may comprise, responsive to a first condition comprising a reference voltage of a first exhaust oxygen sensor operating in variable voltage mode increasing above a threshold voltage, determining a change in an output of the first exhaust oxygen sensor corresponding to the increase in the reference voltage, correcting the output of the first oxygen sensor based on the output change, and adjusting engine operation based on the corrected output. In this way, the accuracy of air-fuel estimates based on the exhaust gas sensor can be preserved, and closed loop fuel control of the engine can be maintained even when the exhaust oxygen sensor is operating VVS mode, thereby reducing engine emissions, increasing fuel economy, and increasing vehicle drivability.
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公开(公告)号：US20170082045A1
公开(公告)日：2017-03-23
申请号：US14863281
申请日：2015-09-23
Applicant: Ford Global Technologies, LLC
Inventor： Daniel A. Makled , Gopichandra Surnilla , Richard E. Soltis , Michael McQuillen , Mohannad Hakeem , Lyth Alobiedat
CPC classification number: F02D41/021 , F02D35/00 , F02D35/0007 , F02D37/02 , F02D41/005 , F02D41/0077 , F02D41/1456 , F02D41/2406 , F02D41/26 , F02D2200/0418 , F02D2200/70 , F02M35/10393 , Y02T10/47
Abstract: Methods and systems are provided for triggering a humidity measurement based on changes in ambient conditions. In one example, a method may include, in response to a higher than threshold change in ambient air temperature or pressure, operating an oxygen sensor to update an ambient humidity estimate. Engine operation parameters may be adjusted based on the updated ambient humidity estimate.
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公开(公告)号：US10767571B2
公开(公告)日：2020-09-08
申请号：US16039181
申请日：2018-07-18
Applicant: Ford Global Technologies, LLC
Inventor： Christopher Paul Glugla , Imtiaz Ali , Lyth Alobiedat , Timothy Joseph Clark
Abstract: Systems and methods for operating an engine that includes a compression ratio linkage for adjusting engine compression ratio are described. The systems and methods provide different ways of changing a compression ratio of an engine based on forecast or anticipated engine operating conditions. In one example, the forecast or anticipated engine operating conditions may include a forecast or anticipated transmission gear shift.
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Patent Agency Ranking
公开(公告)号：US10415493B2
公开(公告)日：2019-09-17
申请号：US15788074
申请日：2017-10-19
Applicant: Ford Global Technologies, LLC
Inventor： Thomas G. Leone , Michael Howard Shelby , Lyth Alobiedat
Abstract: Methods and systems are provided for improving calibration of a variable compression ratio engine. Cylinder-to-cylinder compression ratio variations are detected and accounted for by comparing cylinder fuel flow and IMEP at each compression ratio setting. Dilution parameters including EGR and VCT schedule are also calibrated to account for the cylinder-to-cylinder compression ratio variations.
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公开(公告)号：US10378458B2
公开(公告)日：2019-08-13
申请号：US15788036
申请日：2017-10-19
Applicant: Ford Global Technologies, LLC
Inventor： Thomas G. Leone , Michael Howard Shelby , Lyth Alobiedat
Abstract: Methods and systems are provided for improving calibration of a variable compression ratio engine. Cylinder-to-cylinder compression ratio variations are detected and accounted for by comparing cylinder fuel flow and IMEP at each compression ratio setting. Dilution parameters including EGR and VCT schedule are also calibrated to account for the cylinder-to-cylinder compression ratio variations.
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公开(公告)号：US20190178188A1
公开(公告)日：2019-06-13
申请号：US15835153
申请日：2017-12-07
Applicant: Ford Global Technologies, LLC
Inventor： Christopher Paul Glugla , Gopichandra Surnilla , Imtiaz Ali , Lyth Alobiedat
Abstract: Systems and methods for operating an engine that includes a compression ratio linkage for adjusting engine compression ratio are described. The systems and methods provide different ways of diagnosing the presence or absence of engine misfire in response to engine operating regions that may be more or less prone to torsional engine crankshaft vibration. In one example, engine misfire may be determined responsive to force applied to an engine compression ratio changing linkage.
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公开(公告)号：US10060369B2
公开(公告)日：2018-08-28
申请号：US14863281
申请日：2015-09-23
Applicant: Ford Global Technologies, LLC
Inventor： Daniel A. Makled , Gopichandra Surnilla , Richard E. Soltis , Michael McQuillen , Mohannad Hakeem , Lyth Alobiedat
CPC classification number: F02D41/021 , F02D35/00 , F02D35/0007 , F02D37/02 , F02D41/005 , F02D41/0077 , F02D41/1456 , F02D41/2406 , F02D41/26 , F02D2200/0418 , F02D2200/70 , F02M35/10393 , Y02T10/47
Abstract: Methods and systems are provided for triggering a humidity measurement based on changes in ambient conditions. In one example, a method may include, in response to a higher than threshold change in ambient air temperature or pressure, operating an oxygen sensor to update an ambient humidity estimate. Engine operation parameters may be adjusted based on the updated ambient humidity estimate.
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18.发明授权公开(公告)号：US09926871B2
公开(公告)日：2018-03-27
申请号：US15005989
申请日：2016-01-25
Applicant: Ford Global Technologies, LLC
Inventor： Lyth Alobiedat , Gopichandra Surnilla , Daniel A. Makled , Mohannad Hakeem , Richard E. Soltis , Michael McQuillen , Stephen B. Smith
CPC classification number: F02D41/1454 , F01N13/008 , F02D41/1441 , F02D41/1456 , F02D41/1458 , F02D41/1486 , F02D41/28 , F02D2041/281 , G01M15/104
Abstract: A method for an engine may comprise, responsive to a first condition comprising a reference voltage of a first exhaust oxygen sensor operating in variable voltage mode increasing above a threshold voltage, determining a change in an output of the first exhaust oxygen sensor corresponding to the increase in the reference voltage, correcting the output of the first oxygen sensor based on the output change, and adjusting engine operation based on the corrected output. In this way, the accuracy of air-fuel estimates based on the exhaust gas sensor can be preserved, and closed loop fuel control of the engine can be maintained even when the exhaust oxygen sensor is operating VVS mode, thereby reducing engine emissions, increasing fuel economy, and increasing vehicle drivability.
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