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公开(公告)号：US09840975B2
公开(公告)日：2017-12-12
申请号：US14539716
申请日：2014-11-12
Applicant: Ford Global Technologies, LLC
Inventor： Gopichandra Surnilla , Richard E. Soltis , Daniel A. Makled
CPC classification number: F02D41/0025 , F02D19/12 , F02D41/1456 , F02D2041/1472 , Y02T10/36
Abstract: Methods and systems are provided for adjusting the amount of secondary fluid being injected into an engine. In one example, a method may include adjusting an amount of secondary fluid injected at an engine cylinder based on a secondary fluid injection amount estimated from outputs of an exhaust oxygen sensor. For example, the secondary fluid injection amount may be estimated based on a first change in pumping current of the exhaust oxygen sensor between a first and second reference voltage when only fuel is injected into the engine cylinder and a second change in pumping current of the exhaust oxygen sensor between the first and second reference voltage when fuel and the secondary fluid are injected into the engine cylinder.
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公开(公告)号：US09797323B2
公开(公告)日：2017-10-24
申请号：US14818646
申请日：2015-08-05
Applicant: Ford Global Technologies, LLC
Inventor： Gopichandra Surnilla , Daniel A. Makled , Richard E. Soltis
CPC classification number: F02D41/0055 , F01M13/00 , F02D13/0203 , F02D41/0005 , F02D41/123 , F02D41/1456 , F02D2041/1472 , F02D2250/08 , G01M15/104 , Y02T10/42 , Y02T10/47
Abstract: Methods and systems are provided for estimating a PCV flow to an engine based on the output of an exhaust gas oxygen sensor. During DFSO conditions, a reference voltage of the sensor is modulated initially with an intake throttle open and then with the intake throttle closed. PCV flow leaking past the piston valves in an aging engine, as well as an ambient humidity estimate, are inferred based on the outputs of the sensor during the modulating with the intake throttle open and closed.
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公开(公告)号：US20170205314A1
公开(公告)日：2017-07-20
申请号：US15002199
申请日：2016-01-20
Applicant: Ford Global Technologies, LLC
Inventor： Michael McQuillen , Gopichandra Surnilla , Richard E. Soltis , Daniel A. Makled , John Joseph Virga
IPC: G01M15/10
CPC classification number: G01M15/104 , G01N27/4175
Abstract: The present description relates generally to methods and systems for detecting thermal aging and blackening in oxygen sensors. Thermal aging and blackening effects may be differentiated based on a monitored change in impedance in each of a pump cell and a Nernst cell of the oxygen sensor following application of an alternating voltage. In response to detection of thermal aging and/or blackening in the oxygen sensor corrective measures may be taken to ensure accurate oxygen estimation using the sensor.
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公开(公告)号：US09664132B2
公开(公告)日：2017-05-30
申请号：US14568916
申请日：2014-12-12
Applicant: Ford Global Technologies, LLC
Inventor： Michael McQuillen , Gopichandra Surnilla , Richard E. Soltis , Daniel A. Makled , Stephen B. Smith
CPC classification number: F02D41/1494 , F02D41/2474 , G01N27/16 , G01N27/4067 , G01N33/0039 , Y02A50/247
Abstract: Various methods are provided for operating an oxygen sensor. In one example, a method of operating an oxygen sensor including a heater comprises sampling a first heater resistance at a first temperature, and determining a resistance-temperature transfer function relating heater resistance to heater temperature based on the first heater resistance and a second heater resistance at a second temperature, the second temperature different from the first temperature.
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55.发明申请公开(公告)号：US20160245193A1
公开(公告)日：2016-08-25
申请号：US14626623
申请日：2015-02-19
Applicant: Ford Global Technologies, LLC
Inventor： Daniel A. Makled , Gopichandra Surnilla , Richard E. Soltis , Evangelos P. Skoures , Jacobus Hendrik Visser , Timothy Joseph Clark , David James Scholl
IPC: F02D19/08
CPC classification number: F02D19/088 , F02D19/084 , F02D35/0015 , F02D41/0025 , F02D41/1454 , F02D41/1456 , F02D41/1458 , F02D2200/0418 , F02D2200/0612 , G01M15/104 , Y02T10/36
Abstract: Methods and systems are provided for determining an amount of alcohol in fuel injected into an engine based on outputs from an exhaust gas sensor. In one example, a method includes estimating a first fuel alcohol content based on an air-fuel ratio estimated with the exhaust oxygen sensor and estimating a second fuel alcohol content based on a change in sensor output during modulating a reference voltage of the exhaust oxygen sensor between a first and second voltage. The method further includes adjusting engine operation based on a difference between the first and second fuel alcohol contents.
Abstract translation: 提供了用于基于来自废气传感器的输出来确定喷射到发动机中的燃料中的醇的量的方法和系统。 在一个示例中，一种方法包括基于利用排气氧传感器估计的空燃比估计第一燃料酒精含量，并且基于在调节排气氧传感器的参考电压期间的传感器输出的变化来估计第二燃料酒精含量 在第一和第二电压之间。 该方法还包括基于第一和第二燃料酒精含量之间的差来调节发动机运转。
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Patent Agency Ranking
56.发明申请公开(公告)号：US20160222897A1
公开(公告)日：2016-08-04
申请号：US15097145
申请日：2016-04-12
Applicant: Ford Global Technologies, LLC
Inventor： Gopichandra Surnilla , Richard E. Soltis , Dan A. Makled , Timothy Joseph Clark
CPC classification number: F02D41/0065 , F02B29/04 , F02D41/0002 , F02D41/0007 , F02D41/0072 , F02D41/144 , F02D41/1494 , F02D41/1495 , F02D2200/0418 , F02M26/04 , F02M26/44 , F02M26/45 , F02M26/46 , F02M26/49 , F02M2026/001 , F02P5/1502 , G01M15/02 , Y02T10/146 , Y02T10/42 , Y02T10/46
Abstract: Methods and systems are provided for indicating water at an oxygen sensor based on power consumption of a heating element of the oxygen sensor. In one example, water may be indicated at an oxygen sensor positioned in an intake of an engine responsive to power consumption of the heating element of the oxygen sensor increasing above a baseline level. Engine operating parameters may then be adjusted based on the water indication and the power consumption.
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57.发明授权Methods and systems for fuel ethanol content determination via an oxygen sensor 有权通过氧传感器测定燃料乙醇含量的方法和系统公开(公告)号：US09376968B2
公开(公告)日：2016-06-28
申请号：US14297301
申请日：2014-06-05
Applicant: Ford Global Technologies, LLC
Inventor： Gopichandra Surnilla , Daniel A. Makled , Richard E. Soltis , Jacobus Hendrik Visser
CPC classification number: F02D19/087 , F02D19/0634 , F02D41/0025 , F02D41/123 , F02D41/1439 , F02D41/144 , F02D41/1454 , F02D41/1456 , F02D41/2438 , F02D41/2441 , F02D41/2474 , F02D2200/0418 , F02D2200/0612 , G01M15/104 , G01N27/409
Abstract: Methods are provided for accurately learning part-to-part variability of an intake or exhaust oxygen sensor. A correction factor is learned based on sensor readings at voltages above and below a voltage corresponding to dry air conditions. An ethanol transfer function is then adjusted based on the learned correction factor so as to improve the accuracy of combusted fuel ethanol content estimation.
Abstract translation: 提供了准确地学习进气或排气氧传感器的部分变化性的方法。 基于在高于和低于对应于干燥空气条件的电压的电压下的传感器读数来学习校正因子。 然后根据学习的校正因子调整乙醇转移函数，以提高燃烧乙醇含量估计的准确性。
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公开(公告)号：US20160131048A1
公开(公告)日：2016-05-12
申请号：US14539716
申请日：2014-11-12
Applicant: Ford Global Technologies, LLC
Inventor： Gopichandra Surnilla , Richard E. Soltis , Daniel A. Makled
CPC classification number: F02D41/0025 , F02D19/12 , F02D41/1456 , F02D2041/1472 , Y02T10/36
Abstract: Methods and systems are provided for adjusting the amount of secondary fluid being injected into an engine. In one example, a method may include adjusting an amount of secondary fluid injected at an engine cylinder based on a secondary fluid injection amount estimated from outputs of an exhaust oxygen sensor. For example, the secondary fluid injection amount may be estimated based on a first change in pumping current of the exhaust oxygen sensor between a first and second reference voltage when only fuel is injected into the engine cylinder and a second change in pumping current of the exhaust oxygen sensor between the first and second reference voltage when fuel and the secondary fluid are injected into the engine cylinder.
Abstract translation: 提供了用于调节注入到发动机中的次级流体的量的方法和系统。 在一个示例中，方法可以包括基于从排气氧传感器的输出估计的次级流体喷射量来调节在发动机气缸处喷射的次级流体的量。 例如，二次流体喷射量可以基于仅在燃料喷射到发动机气缸中时第一和第二参考电压之间的排气氧传感器的泵浦电流的第一变化以及排气的泵送电流的第二变化来估计 当燃料和次级流体注入到发动机气缸中时，在第一和第二参考电压之间的氧传感器。
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公开(公告)号：US20160109422A1
公开(公告)日：2016-04-21
申请号：US14517601
申请日：2014-10-17
Applicant: Ford Global Technologies, LLC
Inventor： Daniel A. Makled , Gopichandra Surnilla , Richard E. Soltis , Susan Nicole Wilber
IPC: G01N33/00
CPC classification number: G01N33/0073 , F02D13/0203 , F02D19/0655 , F02D41/123 , F02D41/1454 , F02D41/20 , F02D2041/1472 , F02D2041/2051 , F02D2200/0418 , F02D2200/0612 , Y02T10/18 , Y02T10/36
Abstract: Methods and systems are provided for adjusting a rate of change in a reference voltage of an oxygen sensor. In one example, a method may include gradually increasing a reference voltage of an oxygen sensor from a lower first voltage to a higher second voltage at a ramp rate. The ramp rate may be based on engine operating conditions.
Abstract translation: 提供了用于调节氧传感器的参考电压的变化率的方法和系统。 在一个示例中，一种方法可以包括将氧传感器的参考电压从较低的第一电压逐渐增加到较高的第二电压。 斜坡率可以基于发动机的运行条件。
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公开(公告)号：US20160102642A1
公开(公告)日：2016-04-14
申请号：US14969794
申请日：2015-12-15
Applicant: Ford Global Technologies, LLC
Inventor： Gopichandra Surnilla , Joseph Basmaji , Ross Dykstra Pursifull , Larry Dean Elie , Richard E. Soltis , David Karl Bidner
CPC classification number: F02M63/0001 , F02D41/123 , F02D41/221 , F02D2041/226 , F02M37/0052 , F02M37/0064 , F02M43/00 , F02M43/02 , F02M57/023 , F02M59/102 , F04B2205/15
Abstract: Systems and methods for diagnosing and operating an engine with a fuel pump that supplies fuel to a fuel injector that may be temporarily deactivated are described. In one example, injection of fuel may commence in response to a level of lubrication of a fuel pump. The system and methods may extend fuel pump life in systems where fuel injection may be deactivated.
Abstract translation: 描述了用燃料泵诊断和操作发动机的系统和方法，所述燃料泵向可能暂时停用的燃料喷射器供应燃料。 在一个示例中，燃料喷射可以响应于燃料泵的润滑水平而开始。 系统和方法可能会延长燃油喷射可能被停用的系统中的燃油泵寿命。
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