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1.发明授权System and method for diagnosing a fault in an oxygen sensor based on ambient temperature 有权基于环境温度诊断氧传感器故障的系统和方法公开(公告)号：US09453472B2
公开(公告)日：2016-09-27
申请号：US14074790
申请日：2013-11-08
Applicant: GM Global Technology Operations LLC
Inventor： Stephen Paul Levijoki , Scott Jeffrey
CPC classification number: F02D41/1495 , F02D41/1441 , F02D41/1454 , F02D41/1456 , F02D2200/0414 , F02D2200/101
Abstract: A system according to the principles of the present disclosure includes an error count module and a sensor diagnostic module. The error count module increases an error count when an actual air/fuel ratio generated by an oxygen sensor monitoring an exhaust system of an engine is different than a desired air/fuel ratio. The error count module selectively adjusts a rate at which the error count is increased based on an ambient temperature. The sensor diagnostic module diagnoses a fault in the oxygen sensor when the error count is greater than a first predetermined count.
Abstract translation: 根据本公开的原理的系统包括错误计数模块和传感器诊断模块。 当由监测发动机的排气系统的氧气传感器产生的实际空气/燃料比不同于期望的空气/燃料比时，误差计数模块增加错误计数。 错误计数模块根据环境温度选择性地调整误差计数增加的速率。 当误差计数大于第一预定计数时，传感器诊断模块诊断氧传感器中的故障。
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2.发明授权System and method for diagnosing a fault in an oxygen sensor based on engine speed 有权基于发动机转速诊断氧传感器故障的系统和方法公开(公告)号：US09146177B2
公开(公告)日：2015-09-29
申请号：US13672231
申请日：2012-11-08
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Stephen Paul Levijoki , Thomas J. Majcher , Scott Jeffrey , John W. Siekkinen
CPC classification number: G01M15/10 , F01N11/00 , F01N11/007 , F02D41/1454 , F02D41/1495 , F02D41/222 , G01N27/4175 , G01N33/007 , Y02T10/40
Abstract: A system according to the principles of the present disclosure includes an error count module and a sensor diagnostic module. The error count module increases an error count when an actual air/fuel ratio is different from a desired air/fuel ratio and selectively adjusts the error count based on an actual engine speed. An oxygen sensor generates a signal indicating the actual air/fuel ratio. The sensor diagnostic module diagnoses a fault in the oxygen sensor when the error count is greater than a first predetermined count.
Abstract translation: 根据本公开的原理的系统包括错误计数模块和传感器诊断模块。 当实际空燃比与期望的空燃比不同时，误差计数模块增加误差计数，并根据实际发动机转速有选择地调整误差计数。 氧气传感器产生指示实际空气/燃料比的信号。 当误差计数大于第一预定计数时，传感器诊断模块诊断氧传感器中的故障。
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3.发明申请SYSTEM AND METHOD FOR DIAGNOSING A FAULT IN AN OXYGEN SENSOR BASED ON AMBIENT TEMPERATURE 有权用于诊断基于环境温度的氧传感器故障的系统和方法公开(公告)号：US20150128905A1
公开(公告)日：2015-05-14
申请号：US14074790
申请日：2013-11-08
Applicant: GM Global Technology Operations LLC
Inventor： STEPHEN PAUL LEVIJOKI , Scott Jeffrey
IPC: F02D41/30
CPC classification number: F02D41/1495 , F02D41/1441 , F02D41/1454 , F02D41/1456 , F02D2200/0414 , F02D2200/101
Abstract: A system according to the principles of the present disclosure includes an error count module and a sensor diagnostic module. The error count module increases an error count when an actual air/fuel ratio generated by an oxygen sensor monitoring an exhaust system of an engine is different than a desired air/fuel ratio. The error count module selectively adjusts a rate at which the error count is increased based on an ambient temperature. The sensor diagnostic module diagnoses a fault in the oxygen sensor when the error count is greater than a first predetermined count.
Abstract translation: 根据本公开的原理的系统包括错误计数模块和传感器诊断模块。 当由监测发动机的排气系统的氧气传感器产生的实际空气/燃料比不同于期望的空气/燃料比时，误差计数模块增加错误计数。 错误计数模块根据环境温度选择性地调整误差计数增加的速率。 当误差计数大于第一预定计数时，传感器诊断模块诊断氧传感器中的故障。
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公开(公告)号：US09828954B2
公开(公告)日：2017-11-28
申请号：US14840426
申请日：2015-08-31
Applicant: GM Global Technology Operations LLC
Inventor： Steven Ward Majors , Scott Jeffrey , Jason West
CPC classification number: F02M25/089 , F02D41/0035 , F02D41/08 , F02D41/1441 , F02D41/1454 , F02D41/1487 , F02D41/1497 , F02D2200/101 , F02M25/08 , F02M25/0836 , F02M25/0854
Abstract: A fuel control system for an engine includes a closing module and a purge control module. The closing module commands closing of a purge valve in response an engine speed transitioning from greater than a predetermined speed to less than the predetermined speed while the purge valve is in an open state. The predetermined speed is less than a predetermined target speed of the engine and is greater than zero. The purge control module transitions the purge valve from the open state to a closed state in response to the command.
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公开(公告)号：US09771888B2
公开(公告)日：2017-09-26
申请号：US14056994
申请日：2013-10-18
Applicant: GM Global Technology Operations LLC
Inventor： Jonathan Packard , Robert J. Genslak , Scott Jeffrey
CPC classification number: F02D43/00 , F02D41/0235 , F02D41/08 , F02D41/123 , F02D41/126 , F02D41/1441 , F02D2200/0802 , F02D2200/0816 , F02P5/1506 , F02P5/1508 , Y02T10/46 , Y02T10/47
Abstract: A system according to the principles of the present disclosure includes a storage capability module and at least one of an engine speed control module and a spark control module. The storage capability module determines a capability of a catalytic converter to store oxygen. The engine speed control module controls a speed of an engine based on the oxygen storage capability of the catalytic converter. The spark control module controls a spark timing of the engine based on the oxygen storage capability of the catalytic converter.
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Patent Agency Ranking
6.发明申请SYSTEM AND METHOD FOR CONTROLLING AN ENGINE BASED ON AN OXYGEN STORAGE CAPABILITY OF A CATALYTIC CONVERTER 有权基于催化转换器的氧气存储能力控制发动机的系统和方法公开(公告)号：US20150107554A1
公开(公告)日：2015-04-23
申请号：US14056994
申请日：2013-10-18
Applicant: GM Global Technology Operations LLC
Inventor： Jonathan Packard , Robert J. Genslak , Scott Jeffrey
IPC: F02D43/00
CPC classification number: F02D43/00 , F02D41/0235 , F02D41/08 , F02D41/123 , F02D41/126 , F02D41/1441 , F02D2200/0802 , F02D2200/0816 , F02P5/1506 , F02P5/1508 , Y02T10/46 , Y02T10/47
Abstract: A system according to the principles of the present disclosure includes a storage capability module and at least one of an engine speed control module and a spark control module. The storage capability module determines a capability of a catalytic converter to store oxygen. The engine speed control module controls a speed of an engine based on the oxygen storage capability of the catalytic converter. The spark control module controls a spark timing of the engine based on the oxygen storage capability of the catalytic converter.
Abstract translation: 根据本公开原理的系统包括存储能力模块和发动机速度控制模块和火花控制模块中的至少一个。 存储能力模块确定催化转化器存储氧气的能力。 发动机速度控制模块基于催化转化器的氧气存储能力来控制发动机的速度。 火花控制模块基于催化转化器的储氧能力来控制发动机的火花正时。
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7.发明授权System and method for controlling an operating frequency of a purge valve to improve fuel distribution to cylinders of an engine 有权用于控制净化阀的操作频率以改善对发动机气缸的燃料分配的系统和方法公开(公告)号：US09316166B2
公开(公告)日：2016-04-19
申请号：US13832558
申请日：2013-03-15
Applicant: GM Global Technology Operations LLC
Inventor： Jon C. Miller , Scott Jeffrey , David Edward Prout
CPC classification number: F02D41/0097 , F02D41/004 , F02D2041/2027 , F02D2200/101
Abstract: A system according to the principles of the present disclosure includes an engine speed module and a valve control module. The engine speed module determines a speed of an engine based on a position of a crankshaft. The valve control module selectively adjusts an operating frequency of a purge valve based on the engine speed.
Abstract translation: 根据本公开的原理的系统包括发动机转速模块和阀控制模块。 发动机速度模块基于曲轴的位置确定发动机的速度。 阀控制模块基于发动机转速选择性地调节排气阀的工作频率。
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8.发明申请SYSTEM AND METHOD FOR DIAGNOSING A FAULT IN AN OXYGEN SENSOR BASED ON ENGINE SPEED 有权用于诊断基于发动机转速的氧传感器故障的系统和方法公开(公告)号：US20140033812A1
公开(公告)日：2014-02-06
申请号：US13672231
申请日：2012-11-08
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Stephen Paul Levijoki , Thomas J. Majcher , Scott Jeffrey , John W. Siekkinen
IPC: G01M15/10
CPC classification number: G01M15/10 , F01N11/00 , F01N11/007 , F02D41/1454 , F02D41/1495 , F02D41/222 , G01N27/4175 , G01N33/007 , Y02T10/40
Abstract: A system according to the principles of the present disclosure includes an error count module and a sensor diagnostic module. The error count module increases an error count when an actual air/fuel ratio is different from a desired air/fuel ratio and selectively adjusts the error count based on an actual engine speed. An oxygen sensor generates a signal indicating the actual air/fuel ratio. The sensor diagnostic module diagnoses a fault in the oxygen sensor when the error count is greater than a first predetermined count.
Abstract translation: 根据本公开的原理的系统包括错误计数模块和传感器诊断模块。 当实际空燃比与期望的空燃比不同时，误差计数模块增加误差计数，并根据实际发动机转速有选择地调整误差计数。 氧气传感器产生指示实际空气/燃料比的信号。 当误差计数大于第一预定计数时，传感器诊断模块诊断氧传感器中的故障。
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公开(公告)号：US09797344B2
公开(公告)日：2017-10-24
申请号：US14539108
申请日：2014-11-12
Applicant: GM Global Technology Operations LLC
Inventor： Scott Jeffrey
CPC classification number: F02M25/0809 , F02D13/0219 , F02D13/06 , F02D41/003 , F02D2200/0406 , F02D2200/703 , F02M25/0836 , G01N33/0047
Abstract: A system according to the present disclosure includes a valve control module, a purge fraction module, and a diagnostic module. The valve control module opens a purge valve in an evaporative emissions system to allow purge vapor to flow to an intake system of an engine. The purge fraction module determines first and second fractions of purge vapor delivered to the engine relative to a total amount of air and purge vapor delivered to the engine based on first and second inputs, respectively. The first input is from a hydrocarbon sensor disposed in the evaporative emissions system of the engine. The second input is from an oxygen sensor disposed in an exhaust system of the engine. The diagnostic module selectively diagnoses a fault in at least one of the evaporative emissions system and the hydrocarbon sensor based on the first and second purge fractions when the purge valve is open.
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10.发明授权公开(公告)号：US09631567B2
公开(公告)日：2017-04-25
申请号：US13967660
申请日：2013-08-15
Applicant: GM Global Technology Operations LLC
Inventor： B. Jerry Song , Martino Casetti , Scott Jeffrey , Louis A. Avallone
CPC classification number: F02D41/2474 , F02D41/0045 , F02D41/0055 , F02D41/02 , F02D41/04 , F02D41/144 , F02D41/1448 , F02D41/1456 , F02D41/1458 , F02D41/1495 , F02D2200/0402 , F02D2200/0406 , F02D2250/08 , F02M25/089 , G01L19/0092
Abstract: A fuel control system for a vehicle includes a pressure compensation module that compensates an intake oxygen signal based on an intake pressure signal and that generates a compensated intake oxygen signal. A blow-by estimation module generates an estimated blow-by flow. A purge flow estimation module estimates the purge flow based on the compensated intake oxygen signal and the estimated blow-by flow. A fuel control estimation module reduces fueling to injectors of an engine of the vehicle based on the purge flow.
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