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1. 发明申请

US20100222982A1 TORQUE MODEL-BASED COLD START DIAGNOSTIC SYSTEMS AND METHODS 有权
标题翻译：基于模型的冷启动诊断系统和方法
公开(公告)号：US20100222982A1
公开(公告)日：2010-09-02
申请号：US12394716
申请日：2009-02-27
申请人： Lan Wang , Robert J. Genslak , Wenbo Wang , Matthew Squire , Jinchun Peng , Edward Stutevilie , Kurt D. McLain
发明人： Lan Wang , Robert J. Genslak , Wenbo Wang , Matthew Squire , Jinchun Peng , Edward Stutevilie , Kurt D. McLain
IPC分类号： F02D43/00
CPC分类号： F02D41/0255 , F02D41/1447 , F02D41/18 , F02D2200/0414 , F02D2200/0802 , Y02T10/26
摘要： A control system for an engine having a catalytic converter includes an energy calculation module that calculates a calculated mass air flow (MAF) of intake air of the engine based on a requested torque and a requested spark timing that correspond to a desired thermal energy of exhaust of the engine, and that determines an expected thermal energy of the exhaust based on the calculated MAF, and an energy residual module that determines a thermal energy residual of the exhaust based on the expected thermal energy and an estimated thermal energy of the exhaust, wherein the estimated thermal energy is based on a measured MAF of the intake air. The control system includes an energy evaluation module that determines a diagnostic result that indicates whether the catalytic converter is operating within a target temperature range based on the thermal energy residual. Related control methods are also provided.
摘要翻译：一种用于具有催化转化器的发动机的控制系统，包括能量计算模块，该能量计算模块基于所要求的扭矩和与期望的排气热能相对应的所要求的火花正时来计算发动机的进气的计算质量空气流量（MAF）并且基于所计算的MAF确定排气的预期热能;以及能量残余模块，其基于预期的热能和所估计的排气的热能来确定排气的热能残余，其中估计的热能基于进气的测量MAF。控制系统包括能量评估模块，该能量评估模块基于热能残差确定指示催化转化器是否在目标温度范围内运行的诊断结果。还提供了相关的控制方法。

2. 发明授权

US08364376B2 Torque model-based cold start diagnostic systems and methods 有权
标题翻译：基于扭矩模型的冷启动诊断系统和方法
公开(公告)号：US08364376B2
公开(公告)日：2013-01-29
申请号：US12394716
申请日：2009-02-27
申请人： Lan Wang , Robert J. Genslak , Wenbo Wang , Matthew Squire , Jinchun Peng , Edward Stuteville , Kurt D. McLain
发明人： Lan Wang , Robert J. Genslak , Wenbo Wang , Matthew Squire , Jinchun Peng , Edward Stuteville , Kurt D. McLain
IPC分类号： G06F19/00 , G06G7/70 , F01N3/00
CPC分类号： F02D41/0255 , F02D41/1447 , F02D41/18 , F02D2200/0414 , F02D2200/0802 , Y02T10/26
摘要： A control system for an engine having a catalytic converter includes an energy calculation module that calculates a calculated mass air flow (MAF) of intake air of the engine based on a requested torque and a requested spark timing that correspond to a desired thermal energy of exhaust of the engine, and that determines an expected thermal energy of the exhaust based on the calculated MAF, and an energy residual module that determines a thermal energy residual of the exhaust based on the expected thermal energy and an estimated thermal energy of the exhaust, wherein the estimated thermal energy is based on a measured MAF of the intake air. The control system includes an energy evaluation module that determines a diagnostic result that indicates whether the catalytic converter is operating within a target temperature range based on the thermal energy residual. Related control methods are also provided.
摘要翻译：一种用于具有催化转化器的发动机的控制系统，包括能量计算模块，该能量计算模块基于所要求的扭矩和与期望的排气热能相对应的所要求的火花正时来计算发动机的进气的计算质量空气流量（MAF）并且基于所计算的MAF确定排气的预期热能;以及能量残余模块，其基于预期的热能和所估计的排气的热能来确定排气的热能残余，其中估计的热能基于进气的测量MAF。控制系统包括能量评估模块，该能量评估模块基于热能残差确定指示催化转化器是否在目标温度范围内运行的诊断结果。还提供了相关的控制方法。

3. 发明授权

US08416053B2 Intermittent sensor detection using signal string length 有权
标题翻译：使用信号串长度进行间歇传感器检测
公开(公告)号：US08416053B2
公开(公告)日：2013-04-09
申请号：US12436408
申请日：2009-05-06
申请人： Kurt D. McLain , Layne K. Wiggins , Wenbo Wang
发明人： Kurt D. McLain , Layne K. Wiggins , Wenbo Wang
IPC分类号： G05B23/02
CPC分类号： G05B9/02 , G05B23/0235
摘要： An engine control system comprises a signal deviation module, a variation determination module, and a sensor diagnostic module. The signal deviation module receives a signal from a sensor monitoring an operating condition of an engine and determines a plurality of signal deviations. Each of the plurality of signal deviations is based on a magnitude of a difference between the signal at a first time and the signal at a second time. The second time is different than the first time. The variation determination module generates a variation value based on the plurality of signal deviations during a period. The sensor diagnostic module determines a state of the sensor based on the variation value.
摘要翻译：发动机控制系统包括信号偏差模块，变化确定模块和传感器诊断模块。信号偏差模块接收来自传感器的信号，监测发动机的运行状态并确定多个信号偏差。多个信号偏差中的每一个基于第一时间的信号与第二时间的信号之间的差值的大小。第二次与第一次不同。变化确定模块在一段时间内基于多个信号偏差生成变化值。传感器诊断模块基于变化值来确定传感器的状态。

4. 发明授权

US07886585B2 Intake air temperature sensor diagnostic systems with adaptive learning modules 有权
标题翻译：进气温度传感器诊断系统具有自适应学习模块
公开(公告)号：US07886585B2
公开(公告)日：2011-02-15
申请号：US12179682
申请日：2008-07-25
申请人： Kurt D. McLain , Wenbo Wang
发明人： Kurt D. McLain , Wenbo Wang
IPC分类号： G01M15/04
CPC分类号： F02D41/18 , F02D41/222 , F02D41/2474 , F02D2200/0414
摘要： A diagnostic system for an internal combustion engine includes an intake air temperature (IAT) determination module, a reference temperature determination module, and an adaptive learning module. The IAT determination modules determines a first IAT using an IAT sensor at a first time and determines a second IAT using the IAT sensor at a second time. The reference temperature determination module determines a first frequency based on a first voltage output of a MAF sensor at the first time and determines a second frequency based on a second voltage output of the MAF sensor at the second time. The adaptive learning module determines a temperature-frequency relationship based on the first IAT, the second IAT, the first frequency and the second frequency.
摘要翻译：一种用于内燃机的诊断系统包括进气温度（IAT）确定模块，参考温度确定模块和自适应学习模块。 IAT确定模块在第一时间使用IAT传感器确定第一IAT，并且在第二时间使用IAT传感器确定第二IAT。参考温度确定模块基于第一次MAF传感器的第一电压输出确定第一频率，并且在第二时间基于MAF传感器的第二电压输出确定第二频率。自适应学习模块基于第一IAT，第二IAT，第一频率和第二频率确定温度 - 频率关系。

5. 发明授权

US07369937B1 Intake air temperature rationality diagnostic 有权
标题翻译：进气温度合理性诊断
公开(公告)号：US07369937B1
公开(公告)日：2008-05-06
申请号：US11821590
申请日：2007-06-22
申请人： Wenbo Wang , Kurt D. McLain , Zhong Wang
发明人： Wenbo Wang , Kurt D. McLain , Zhong Wang
IPC分类号： F02D45/00 , G06F19/00
CPC分类号： F02D41/222 , F02D41/18 , F02D2200/0402 , F02D2200/0414 , Y02T10/40
摘要： A method of determining whether a fault condition of an intake air temperature (IAT) sensor of an engine is present includes estimating a first intake charge temperature (ICT) based on an estimated first ICT and a previously estimated first mass air flow (MAF) and estimating a second ICT based on a previously estimated second ICT and a currently measured MAF. An IAT difference is determined based on the first ICT and the second ICT. Whether the fault condition of the IAT sensor is present is determined based on the IAT difference.
摘要翻译：确定发动机的进气温度（IAT）传感器的故障状况是否存在的方法包括基于估计的第一ICT和先前估计的第一质量空气流（MAF）来估计第一进气充量温度（ICT）和基于先前估计的第二ICT和当前测量的MAF估计第二ICT。 IAT的差异是基于第一个ICT和第二个ICT确定的。基于IAT差异确定IAT传感器的故障状态是否存在。

6. 发明授权

US08234038B2 Intake air temperature diagnostic system 失效
标题翻译：进气温度诊断系统
公开(公告)号：US08234038B2
公开(公告)日：2012-07-31
申请号：US11945608
申请日：2007-11-27
申请人： Kurt D. McLain , Wenbo Wang
发明人： Kurt D. McLain , Wenbo Wang
IPC分类号： G01M17/00 , B63B35/73 , F02M23/08
CPC分类号： G01M15/042 , F02D41/187 , F02D41/222 , F02D2200/0414 , F02D2200/0416 , G01K13/02 , G01K15/00 , G01K15/007 , Y02T10/40
摘要： A method of evaluating intake air temperature (IAT) sensor rationality may include measuring a first intake air temperature associated with an engine using an IAT sensor when the engine is in a non-operating condition, determining a second intake air temperature associated with the engine using a hot wire air flow meter when the engine is in the non-operating condition, and indicating an IAT sensor fault when a difference between the first and second intake air temperatures exceeds a predetermined temperature limit.
摘要翻译：评估进气温度（IAT）传感器理性的方法可以包括：当发动机处于非运行状态时，使用IAT传感器测量与发动机相关联的第一进气温度，确定与发动机相关联的第二进气温度当发动机处于非运行状态时，热线空气流量计，当第一和第二进气温度之间的差超过预定温度极限时，指示IAT传感器故障。

7. 发明申请

US20090187301A1 Detection of Engine Intake Manifold Air-Leaks 有权
标题翻译：检测发动机进气歧管空气泄漏
公开(公告)号：US20090187301A1
公开(公告)日：2009-07-23
申请号：US12015750
申请日：2008-01-17
申请人： Wenbo Wang , Kurt D. McLain , Zhong Wang
发明人： Wenbo Wang , Kurt D. McLain , Zhong Wang
IPC分类号： F02D41/00 , F02D35/02
CPC分类号： F02D41/18 , F02D41/0002 , F02D41/22 , F02D2200/0402
摘要： A method of determining an engine intake air leak may include measuring an air flow rate into an internal combustion engine, comparing the measured air flow rate to a first predetermined air flow limit, calculating an estimated air flow rate into the engine when the measured air flow rate is less than the first predetermined air flow limit, comparing the estimated air flow rate to second and third predetermined air flow limits, and indicating an air leak when the estimated air flow rate is greater than the second predetermined air flow limit and less than the third predetermined air flow limit.
摘要翻译：确定发动机进气泄漏的方法可以包括测量进入内燃机的空气流量，将测量的空气流量与第一预定空气流量限制进行比较，计算当测量的空气流量时进入发动机的估计空气流量速率小于第一预定空气流量限制，将估计的空气流量与第二和第三预定空气流量限制进行比较，并且当估计空气流量大于第二预定空气流量限制时指示空气泄漏，并且小于第三预定气流限制。

8. 发明申请

US20080319600A1 Intake air temperature rationality diagnostic 有权
标题翻译：进气温度合理性诊断
公开(公告)号：US20080319600A1
公开(公告)日：2008-12-25
申请号：US11821591
申请日：2007-06-22
申请人： Kurt D. McLain , Wenbo Wang
发明人： Kurt D. McLain , Wenbo Wang
IPC分类号： G06F19/00
CPC分类号： F02D41/222 , F02D41/187 , F02D2041/0075 , F02D2200/0402 , F02D2200/0408 , F02D2200/0414 , G01K7/42 , G01K15/00 , G01K15/007 , G01M15/09 , Y02T10/40
摘要： A method of determining whether a fault condition of an intake air temperature (IAT) sensor of an engine is present includes estimating a first manifold absolute pressure (MAP) based on a previously estimated first MAP and an estimated first mass air flow (MAF) as a function of the previously estimated first MAP and estimating a second MAP based on a previously estimated second MAP and a currently measured MAF. An IAT difference is determined based on the first MAP and the second MAP. Whether the fault condition of the IAT sensor is present is determined based on the IAT difference.
摘要翻译：确定发动机的进气温度（IAT）传感器的故障状况是否存在的方法包括基于先前估计的第一MAP和估计的第一质量空气流（MAF）估计第一歧管绝对压力（MAP）作为预先估计的第一MAP的功能，并且基于先前估计的第二MAP和当前测量的MAF来估计第二MAP。基于第一MAP和第二MAP确定IAT差异。基于IAT差异确定IAT传感器的故障状态是否存在。

9. 发明授权

US07805984B2 Intake manifold tuning valve fuzzy logic diagnostic 有权
标题翻译：进气歧管调节阀模糊逻辑诊断
公开(公告)号：US07805984B2
公开(公告)日：2010-10-05
申请号：US11467032
申请日：2006-08-24
申请人： Kurt D. McLain , Wenbo Wang
发明人： Kurt D. McLain , Wenbo Wang
IPC分类号： G01M15/04
CPC分类号： F02D41/221 , F02D2200/0406 , Y02T10/40
摘要： A method of diagnosing a malfunction of a tuning valve of an intake manifold coupled to an internal combustion engine is provided. The method includes: commanding the tuning valve to at least one of a closed and an opened position; computing an average deviation of manifold absolute pressure; determining an average deviation threshold using fuzzy logic based on engine speed and airflow per cylinder; comparing the average deviation to the average deviation threshold; and diagnosing a malfunction of the tuning valve based on a comparison of the average deviation and the average deviation threshold.
摘要翻译：提供一种诊断与内燃机连接的进气歧管的调节阀故障的方法。该方法包括：将调谐阀指令为闭合位置和打开位置中的至少一个; 计算歧管绝对压力的平均偏差; 使用基于发动机转速和每气缸气流的模糊逻辑确定平均偏差阈值; 将平均偏差与平均偏差阈值进行比较; 并基于平均偏差和平均偏差阈值的比较来诊断调谐阀的故障。

10. 发明授权

US07305298B2 Charge motion control valve fuzzy logic diagnostic 有权
标题翻译：充电运动控制阀模糊逻辑诊断
公开(公告)号：US07305298B2
公开(公告)日：2007-12-04
申请号：US11402733
申请日：2006-04-12
申请人： Kurt D. McLain , Wenbo Wang
发明人： Kurt D. McLain , Wenbo Wang
IPC分类号： F02D13/00 , B60T7/12
CPC分类号： F02B31/06 , F02D41/1404 , F02D41/187 , F02D41/221 , F02D2041/0015 , F02D2200/0402 , F02D2200/0404 , F02D2200/0414 , Y02T10/146 , Y02T10/40
摘要： A method of diagnosing a malfunction of a charge motion control valve coupled to an intake manifold of an internal combustion engine is provided. The method includes: commanding the valve to at least one of close and open; determining a pressure range using fuzzy logic based on a mass of air flowing into the intake manifold and a temperature of the air flowing into the intake manifold; determining a change in absolute pressure of the intake manifold; comparing the change in absolute pressure to the pressure range; and diagnosing a malfunction of the valve when the change in absolute pressure is within the pressure range.
摘要翻译：提供一种诊断与内燃机的进气歧管相连的充气运动控制阀故障的方法。该方法包括：将阀门指向关闭和打开中的至少一个; 使用基于流入所述进气歧管的空气质量和流入所述进气歧管的空气的温度来确定压力范围; 确定进气歧管的绝对压力的变化; 比较绝对压力与压力范围的变化; 并且当绝对压力的变化在压力范围内时诊断阀的故障。

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