公开(公告)号：US5850824A

公开(公告)日：1998-12-22

申请号：US959797

申请日：1997-10-29

申请人： Gary L. Seitz ,  Yi Cheng ,  Mark E. Hope ,  Shean Huff ,  Mary Joyce ,  Jerry Kennie ,  Dennis A. Krozek ,  Robert J. Nankee, II

发明人： Gary L. Seitz ,  Yi Cheng ,  Mark E. Hope ,  Shean Huff ,  Mary Joyce ,  Jerry Kennie ,  Dennis A. Krozek ,  Robert J. Nankee, II

IPC分类号： F02D19/08 ,  F02D41/00 ,  F02D41/06

CPC分类号： F02D19/088 ,  F02D19/084 ,  F02D41/0025 ,  F02D41/06 ,  F02D2200/0612 ,  Y02T10/36

摘要： The present invention provides a method for controlling the combustion parameters of an internal combustion engine with an oxygen sensor prior to a closed loop operating condition. If the output voltage of the oxygen sensor indicates a lean air to fuel ratio condition, the percent alcohol content is incremented to a limit based on an E85 possibility curve. If the voltage output of the oxygen sensor indicates a rich air to fuel ratio condition, the percent alcohol content is decremented to a limit based on an E0 possibility curve. After the end of the fuel blending period or when the internal combustion engine reaches a closed loop mode, control of the combustion parameters of the internal combustion engine are returned to normal regime oxygen sensor feedback control.

摘要翻译： 本发明提供一种在闭环运行状态之前用氧传感器控制内燃机的燃烧参数的方法。 如果氧传感器的输出电压表示稀空燃比条件，则基于E85可能性曲线，酒精含量百分比增加到极限。 如果氧传感器的电压输出表示浓空燃比条件，则酒精含量百分比根据E0可能性曲线减少到极限。 在燃料混合期结束后或内燃机达到闭环模式时，内燃机的燃烧参数的控制返回正常状态的氧传感器反馈控制。

公开(公告)号：US06041278A

公开(公告)日：2000-03-21

申请号：US958403

申请日：1997-10-29

申请人： Jerry Kennie ,  Yi Cheng ,  Mark E. Hope ,  Shean Huff ,  Robert J. Nankee, II ,  Mary Joyce ,  Dennis A. Krozek ,  Richard K. Moote ,  Roland T. Richardson ,  William D. Rotramel ,  Gary L. Seitz

发明人： Jerry Kennie ,  Yi Cheng ,  Mark E. Hope ,  Shean Huff ,  Robert J. Nankee, II ,  Mary Joyce ,  Dennis A. Krozek ,  Richard K. Moote ,  Roland T. Richardson ,  William D. Rotramel ,  Gary L. Seitz

IPC分类号： F02D19/08 ,  G01M15/00

CPC分类号： F02D19/088 ,  F02D19/0623 ,  F02D19/0628 ,  F02D19/084 ,  F02D19/0665 ,  Y02T10/36

摘要： A method is provided for triggering a system for learning the percent alcohol content of a fuel used in a motor vehicle capable of operating on more than one type of fuel. The fuel composition learning system is triggered each time fuel is added to the vehicle's fuel tank, each time the engine is started when the fuel volume in the fuel tank falls below a given value or if a fuel level sending unit malfunction has been detected. The fuel composition learning system is also triggered if an error is detected in the value of the learned percent alcohol content of the fuel.

摘要翻译： 提供一种用于触发用于学习能够在多于一种类型的燃料上操作的机动车辆中使用的燃料的百分比酒精含量的系统的方法。 每当燃料箱内的燃料量低于给定值时，或每当检测到燃油液位发生单元发生故障时，每当发动机启动时，每当燃料添加到车辆燃料箱时，燃料组成学习系统被触发。 燃料成分学习系统也被触发，如果在燃料的学习百分比酒精含量的值中检测到错误。

公开(公告)号：US5937798A

公开(公告)日：1999-08-17

申请号：US959818

申请日：1997-10-29

申请人： Yi Cheng ,  Shean Huff ,  Robert J. Nankee, II ,  Mary Joyce ,  Jerry Kennie ,  Gary L. Seitz

发明人： Yi Cheng ,  Shean Huff ,  Robert J. Nankee, II ,  Mary Joyce ,  Jerry Kennie ,  Gary L. Seitz

IPC分类号： F02D19/08 ,  F02D41/00 ,  F02B75/12

CPC分类号： F02D41/0025 ,  F02D19/084 ,  F02D19/088 ,  Y02T10/36

摘要： The present invention provides a method for controlling combustion parameters of an internal combustion engine during wide open throttle or part throttle enrichment operation. Oxygen sensor rich and lean counts above and below a stoichiometric air/fuel ratio are counted during an injector pulse width period while a fuel concentration determination is being made at wide open throttle and part throttle enrichment. The ratio of lean counts to rich counts is compared to a calibratable value for incrementing the fuel concentration delivered to the internal combustion engine. The fuel concentration is further controlled if a boil-off condition is detected.

摘要翻译： 本发明提供了一种用于在大开度节流阀或部分节气门增压操作期间控制内燃机的燃烧参数的方法。 在喷射器脉冲宽度期间计数浓度高于和低于化学计量空气/燃料比的氧气传感器浓度，并且在宽开口节气门和部分节气门增压时进行燃料浓度测定。 将稀计数与富计数的比率与用于递增输送到内燃机的燃料浓度的可校准值进行比较。 如果检测到沸腾条件，则进一步控制燃料浓度。

公开(公告)号：US06257174B1

公开(公告)日：2001-07-10

申请号：US09251497

申请日：1999-02-17

申请人： Shean Huff ,  Yi Cheng ,  Robert J. Nankee, II ,  Mary Joyce ,  Jerry Kennie ,  Roland T. Richardson ,  Gary L. Seitz

发明人： Shean Huff ,  Yi Cheng ,  Robert J. Nankee, II ,  Mary Joyce ,  Jerry Kennie ,  Roland T. Richardson ,  Gary L. Seitz

IPC分类号： F02B7512

CPC分类号： F02D19/084 ,  F02D19/088 ,  Y02T10/36

摘要： The present invention provides a flexible fuel compensation system for determining the percent alcohol content of fuel in a flexible fueled vehicle at the instance of fueling and in an open loop operating mode. According to the invention, two estimated percent alcohol content values are calculated based on the old fuel mixture's alcohol content and two fueling possibilities. A first value is calculated for the possibility that E85 fuel was added to the tank and a second value is calculated for the possibility that E0 fuel was added to the tank. If the inferred ethanol content increases above a positive threshold during closed loop operation, the system assumes that E85 fuel has been added to the tank. Conversely, if the inferred ethanol content decreases below a negative threshold, the system assumes that E0 fuel was added to the tank. Accordingly, if the vehicle is shut down before a more accurate ethanol content determination is complete, the inferred ethanol content follows either the first or second estimated alcohol content value until the system reaches a closed loop operating condition.

摘要翻译： 本发明提供一种灵活的燃料补偿系统，用于在燃料加注和开环操作模式的情况下确定柔性燃料车辆中的燃料百分比。 根据本发明，基于旧燃料混合物的酒精含量和两种加油可能性来计算两个估计的醇含量百分比值。 对于将E85燃料添加到罐中的可能性计算第一个值，并计算第二个值，以便将E0燃料添加到罐中。 如果推断的乙醇含量在闭环操作期间增加到高于正阈值，则系统假定已将E85燃料添加到罐中。 相反，如果推断的乙醇含量降低到负阈值以下，则系统假设将E0燃料加入到罐中。 因此，如果车辆在更准确的乙醇含量测定完成之前被关闭，则所推断的乙醇含量遵循第一或第二估计的醇含量值，直到系统达到闭环操作状态。

公开(公告)号：US5901671A

公开(公告)日：1999-05-11

申请号：US959820

申请日：1997-10-29

申请人： Shean Huff ,  Yi Cheng ,  Robert J. Nankee, II ,  Mary Joyce ,  Jerry Kennie ,  Roland T. Richardson ,  Gary L. Seitz

发明人： Shean Huff ,  Yi Cheng ,  Robert J. Nankee, II ,  Mary Joyce ,  Jerry Kennie ,  Roland T. Richardson ,  Gary L. Seitz

IPC分类号： F02D19/08 ,  F02B75/12

CPC分类号： F02D19/084 ,  F02D19/088 ,  Y02T10/36

摘要： The present invention provides a flexible fuel compensation system for determining the percent alcohol content of fuel in a flexible fueled vehicle at the instance of fueling and in an open loop operating mode. According to the invention, two estimated percent alcohol content values are calculated based on the old fuel mixture's alcohol content and two fueling possibilities. A first value is calculated for the possibility that E85 fuel was added to the tank and a second value is calculated for the possibility that E0 fuel was added to the tank. If the inferred ethanol content increases above a positive threshold during closed loop operation, the system assumes that E85 fuel has been added to the tank. Conversely, if the inferred ethanol content decreases below a negative threshold, the system assumes that E0 fuel was added to the tank. Accordingly, if the vehicle is shut down before a more accurate ethanol content determination is complete, the inferred ethanol content follows either the first or second estimated alcohol content value until the system reaches a closed loop operating condition.

摘要翻译： 本发明提供一种灵活的燃料补偿系统，用于在燃料加注和开环操作模式的情况下确定柔性燃料车辆中的燃料百分比。 根据本发明，基于旧燃料混合物的酒精含量和两种加油可能性来计算两个估计的醇含量百分比值。 对于将E85燃料添加到罐中的可能性计算第一个值，并计算第二个值，以便将E0燃料添加到罐中。 如果推断的乙醇含量在闭环操作期间增加到高于正阈值，则系统假定已将E85燃料添加到罐中。 相反，如果推断的乙醇含量降低到负阈值以下，则系统假设将E0燃料加入到罐中。 因此，如果车辆在更准确的乙醇含量测定完成之前被关闭，则所推断的乙醇含量遵循第一或第二估计的醇含量值，直到系统达到闭环操作状态。

公开(公告)号：US5881703A

公开(公告)日：1999-03-16

申请号：US958411

申请日：1997-10-29

申请人： Robert J. Nankee, II ,  Yi Cheng ,  Shean Huff ,  Mary Joyce ,  Jerry Kennie ,  Dennis A. Krozek ,  Richard K. Moote ,  Roland T. Richardson ,  Gary L. Seitz

发明人： Robert J. Nankee, II ,  Yi Cheng ,  Shean Huff ,  Mary Joyce ,  Jerry Kennie ,  Dennis A. Krozek ,  Richard K. Moote ,  Roland T. Richardson ,  Gary L. Seitz

IPC分类号： F02D19/08 ,  F02D41/00 ,  F02D41/16

CPC分类号： F02D41/0025 ,  F02D19/0623 ,  F02D19/084 ,  F02D19/088 ,  F02D2200/0612 ,  Y02T10/36

摘要： The present invention provides a flexible fuel compensation system for controlling operating parameters of an internal combustion engine based on a learned value of the percent alcohol content of the fuel using an oxygen feedback system. The methodology determines a fuel composition multiplier based on the percent alcohol content and implements gasoline operating parameters for the internal combustion engine if the fuel composition multiplier is less than a first threshold value, mixed gasoline/alcohol operating parameters if the fuel composition multiplier is greater than the first threshold value, and high concentration alcohol operating parameters if the fuel composition multiplier is greater than a second threshold value for a number of comparison checks. After a predetermined period, the fuel composition multiplier is updated and re-compared to the first and second thresholds and the appropriate one of the aforementioned operating parameters is implemented. A third update of the fuel composition multiplier is made if the determined fuel composition multiplier is less than the actual percent alcohol content of the fuel by more than a given amount.

摘要翻译： 本发明提供了一种灵活的燃料补偿系统，用于基于使用氧气反馈系统的燃料的百分比醇含量的学习值来控制内燃机的操作参数。 该方法确定基于酒精含量百分比的燃料组成乘数，并且如果燃料组成乘数小于第一阈值，则实施内燃机的汽油操作参数，如果燃料组成乘数大于混合汽油/酒精运行参数 第一阈值和高浓度酒精操作参数，如果燃料组成乘数大于用于多个比较检查的第二阈值。 在预定时间段之后，更新燃料成分乘数并重新比较第一和第二阈值，并且实现上述操作参数中的适当的一个。 如果确定的燃料组成乘数小于燃料的实际酒精含量超过给定量，则进行燃料组成乘数的第三更新。

公开(公告)号：US5950599A

公开(公告)日：1999-09-14

申请号：US959791

申请日：1997-10-29

申请人： William D. Rotramel ,  Yi Cheng ,  Mark E. Hope ,  Shean Huff ,  Mary Joyce ,  Howard W. Krausman ,  Richard K. Moote ,  John M. Prevost ,  Gary L. Seitz ,  Patrick T. McCourt

发明人： William D. Rotramel ,  Yi Cheng ,  Mark E. Hope ,  Shean Huff ,  Mary Joyce ,  Howard W. Krausman ,  Richard K. Moote ,  John M. Prevost ,  Gary L. Seitz ,  Patrick T. McCourt

IPC分类号： F02D19/06 ,  F02D41/00 ,  F02M7/00

CPC分类号： F02D41/0025 ,  F02D19/06 ,  F02D19/084 ,  F02D19/088 ,  F02D2200/0612 ,  F02D41/1454 ,  Y02T10/36

摘要： The present invention is directed towards a method of controlling combustion parameters of an internal combustion engine prior to oxygen sensor feedback availability for a flexible fueled vehicle. If the vehicle has previously been running on ethanol or has been using ethanol in the recent past, a first strategy is employed which basis engine fueling on the minimum of a theoretically appropriate fueling value and a theoretically calculated value. If the vehicle has not previously been running on ethanol or has not been using ethanol in the recent past, a second strategy is employed which basis engine fueling on the minimum of the theoretically appropriate fueling value, the theoretically calculated value and a roughness calculated value.

摘要翻译： 本发明涉及在柔性燃料车辆的氧传感器反馈可用性之前控制内燃机的燃烧参数的方法。 如果车辆以前一直在使用乙醇或最近使用乙醇，则采用第一种策略，即在理论上适当的加油值和理论计算值的最小值的基础内燃机加油。 如果车辆以前没有运行过乙醇或最近没有使用乙醇，则采用第二种策略，即基于理论上合适的加油值，理论计算值和粗糙度计算值的基础发动机燃料加注。

公开(公告)号：US6023965A

公开(公告)日：2000-02-15

申请号：US959817

申请日：1997-10-29

申请人： Jerry Kennie ,  Yi Cheng ,  Robert J. Nankee, II

发明人： Jerry Kennie ,  Yi Cheng ,  Robert J. Nankee, II

IPC分类号： F02D19/08 ,  F02M25/08 ,  G01M15/00

CPC分类号： F02M25/06 ,  F02D19/084 ,  F02D19/0628 ,  Y02T10/121 ,  Y02T10/36

摘要： The present invention provides a method of compensating for a boil-off condition in a flexible fuel compensation control system for a flexible fueled vehicle with a PCV solenoid. The methodology determines both the presence and extent of boil-off corruption and handles closed loop controls normally as if no boil-off corruption exists. The methodology also determines the amount of boil-off corruption being introduced through the PCV system and updates the flexible fueled vehicle fueling during a blend change between ethanol and gasoline. Additionally, the methodology determines when boil-off corruption is no longer influencing closed loop fuel control.

摘要翻译： 本发明提供一种补偿具有PCV螺线管的柔性燃料车辆的柔性燃料补偿控制系统中的蒸发状态的方法。 该方法确定了沸腾腐败的存在和程度，并通常处理闭环控制，就好像不存在煮沸腐败一样。 该方法还确定通过PCV系统引入的锅炉腐蚀量，并在乙醇和汽油之间的混合变化期间更新柔性燃料车辆加油。 此外，该方法确定何时开始腐败不再影响闭环燃料控制。

公开(公告)号：US5941217A

公开(公告)日：1999-08-24

申请号：US959819

申请日：1997-10-29

申请人： Yi Cheng ,  Shean P. Huff ,  Dennis A. Krozek ,  Gary L. Seitz

发明人： Yi Cheng ,  Shean P. Huff ,  Dennis A. Krozek ,  Gary L. Seitz

IPC分类号： F02D19/08 ,  F02D41/04

CPC分类号： F02D19/084 ,  F02D19/088 ,  F02D2200/0611 ,  Y02T10/36

摘要： The present invention provides a method of compensating for changing fuels in a flexible fueled vehicle using a fuel composition sensor. The methodology detects and models an alcohol concentration transition at fuel injector tips following a fuel addition. The methodology improves the accuracy of engine fueling during an alcohol concentration change by delaying the application of a fuel composition multiplier until the fuel analyzed by the fuel composition sensor actually reaches the injectors.

摘要翻译： 本发明提供一种使用燃料组合物传感器补偿柔性燃料车辆中的燃料变化的方法。 燃料添加后，该方法将检测并建模燃油喷射器尖端的酒精浓度转换。 该方法通过延迟燃料组合物乘数的施加直到由燃料组成传感器分析的燃料实际到达喷射器来提高在酒精浓度变化期间发动机燃料供应的精度。

公开(公告)号：US06732029B2

公开(公告)日：2004-05-04

申请号：US10131753

申请日：2002-04-24

申请人： Colleen M Donahue ,  Yi Cheng ,  Gary L Seitz ,  David A Barkman ,  Robert T Forgiel ,  David P Ploucha ,  Richard K Moote ,  Zhong Li ,  Howard W Krausman ,  Ronald A Yannone, Jr.

发明人： Colleen M Donahue ,  Yi Cheng ,  Gary L Seitz ,  David A Barkman ,  Robert T Forgiel ,  David P Ploucha ,  Richard K Moote ,  Zhong Li ,  Howard W Krausman ,  Ronald A Yannone, Jr.

IPC分类号： G06F1900

CPC分类号： G05B23/0251 ,  F02D41/062 ,  F02D41/22 ,  Y02T10/40

摘要： A method of determining the quality of subsystems of an electronic engine control system is provided. The method monitors an engine parameter representative of a subsystem of interest and compares the parameter to at least one quality limit. The at least one quality limit represents an acceptable performance boundary for a fully functional engine control system. The method then indicates, based on the result of the comparison, whether the subsystem is of satisfactory quality. The method is arranged, without limitation, to determining the quality of start time, start flare, idle control during transmission shift, and speed control.

摘要翻译： 提供了一种确定电子发动机控制系统的子系统的质量的方法。 该方法监视代表感兴趣子系统的引擎参数，并将该参数与至少一个质量限制进行比较。 至少一个质量极限表示全功能发动机控制系统的可接受的性能边界。 然后，该方法基于比较的结果，指示子系统是否具有令人满意的质量。 该方法不限于确定开始时间的质量，启动耀斑，变速器换档期间的空转控制和速度控制。