公开(公告)号：US5947089A

公开(公告)日：1999-09-07

申请号：US959695

申请日：1997-10-29

申请人： Mary Joyce ,  Mark E. Hope ,  Shean Huff ,  Howard W. Krausman ,  Richard K. Moote ,  William D. Rotramel ,  Gary L. Seitz

发明人： Mary Joyce ,  Mark E. Hope ,  Shean Huff ,  Howard W. Krausman ,  Richard K. Moote ,  William D. Rotramel ,  Gary L. Seitz

IPC分类号： F02D19/08 ,  F02D41/00 ,  F02D41/22 ,  F02M51/00

CPC分类号： F02D19/088 ,  F02D19/0623 ,  F02D19/084 ,  F02D41/222 ,  F02D2041/227 ,  F02D41/0025 ,  Y02T10/36 ,  Y02T10/40

摘要： The present invention provides a method of compensating for an erroring sensor in a flexible fuel compensation control system for a flexible fueled vehicle. The methodology provides a method for identifying preselected operating conditions without the output of the erroring sensor. As such, the flexible fuel compensation control system may still be employed to ensure vehicle drivability even in the absence of input from an erroring sensor.

摘要翻译： 本发明提供一种在柔性燃料车辆的柔性燃料补偿控制系统中补偿误差传感器的方法。 该方法提供了一种识别预选操作条件而不输出错误传感器的方法。 因此，即使在没有来自错误传感器的输入的情况下，仍然可以采用柔性燃料补偿控制系统来确保车辆驾驶性能。

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：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：US5957094A

公开(公告)日：1999-09-28

申请号：US959772

申请日：1997-10-29

申请人： Howard W. Krausman ,  Mark E. Hope ,  Shean Huff ,  Mary Joyce ,  Gary L. Seitz

发明人： Howard W. Krausman ,  Mark E. Hope ,  Shean Huff ,  Mary Joyce ,  Gary L. Seitz

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

CPC分类号： F02D41/08 ,  F02D19/084 ,  F02D19/088 ,  F02D41/0025 ,  F02D2200/0612 ,  Y02T10/36

摘要： The present invention provides a method of controlling operating parameters of a motor vehicle capable of operating on more than one type of fuel. The methodology employs a separate idle air control enrichment fuel multiplier for optimizing idle air control operating conditions. The methodology also employs a separate transient enrichment fuel multiplier for optimizing transient operating conditions.

摘要翻译： 本发明提供一种控制能够对多于一种类型的燃料进行操作的机动车辆的操作参数的方法。 该方法采用单独的怠速空气控制浓缩燃料加倍器来优化怠速空气控制操作条件。 该方法还采用单独的瞬态浓缩燃料倍增器来优化瞬态操作条件。

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：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：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：US5868117A

公开(公告)日：1999-02-09

申请号：US959815

申请日：1997-10-29

申请人： Richard K. Moote ,  Shean Huff ,  Mary Joyce ,  Howard W. Krausman ,  Gary L. Seitz

发明人： Richard K. Moote ,  Shean Huff ,  Mary Joyce ,  Howard W. Krausman ,  Gary L. Seitz

IPC分类号： F02D19/08 ,  F02D41/00 ,  F02D41/24 ,  F02D41/26

CPC分类号： F02D19/088 ,  F02D19/0623 ,  F02D19/084 ,  F02D41/0025 ,  F02D41/2451 ,  F02D2200/0612 ,  Y02T10/36

摘要： The present invention provides a method for determining ethanol thresholds for a flexible fuel control system for a motor vehicle capable of operating on more than one type of fuel. Preferably, the ethanol threshold is determined from an off-idle purge-free cell from a matrix of fuel adaptive memory cells normally used to compensate for car-to-car variations in required fueling. The ethanol threshold is periodically reduced to compensate for levels of alcohol creep indicated by the amount of purge-free adaptive memory elevation. If the learned value of percent alcohol content of the fuel is less than the ethanol threshold, gasoline operating parameters are implemented for the internal combustion engine. The off-idle purge-free cell also provides a basis for interpolating an on-board diagnostic (OBDII) ethanol threshold. As such, the OBDII monitors are only enabled if the learned value of percent alcohol content of the fuel is less than the OBDII ethanol threshold.

摘要翻译： 本发明提供了一种用于确定能够在多于一种类型的燃料上操作的用于机动车辆的柔性燃料控制系统的乙醇阈值的方法。 优选地，乙醇阈值是从通常用于补偿所需燃料供应中的车对车变化的燃料自适应存储器单元的矩阵的脱离空闲无吹扫电池确定的。 定期降低乙醇阈值以补偿由无清除自适应记忆升高量指示的酒精蠕变水平。 如果燃料酒精含量百分比的学习值小于乙醇阈值，则对内燃机实施汽油运行参数。 脱机无吹扫单元还为内插车载诊断（OBDII）乙醇阈值提供了基础。 因此，仅当燃料的酒精含量百分比值低于OBDII乙醇阈值时，OBDII监视器才能启用。

公开(公告)号：US5915342A

公开(公告)日：1999-06-29

申请号：US959696

申请日：1997-10-29

申请人： Shean Huff ,  Mark E. Hope ,  Mary Joyce ,  Howard W. Krausman ,  Richard K. Moote ,  William D. Rotramel ,  Gary L. Seitz

发明人： Shean Huff ,  Mark E. Hope ,  Mary Joyce ,  Howard W. Krausman ,  Richard K. Moote ,  William D. Rotramel ,  Gary L. Seitz

IPC分类号： F02B1/02 ,  F02D19/08 ,  F02D41/00 ,  F02D41/06 ,  F02B75/12

CPC分类号： F02B1/02 ,  F02D19/0607 ,  F02D19/084 ,  F02D41/065 ,  F02D19/0623 ,  F02D41/0025 ,  Y02T10/36

摘要： The present invention provides a method of controlling combustion parameters of an internal combustion engine without a PCV solenoid during a boil-off condition. The methodology detects a boil-off condition and implements one of two modes of boil-off compensation depending on the active status of an inferred alcohol content multiplier update system. The methodology also determines the nature of the air-flow through the internal combustion engine and determines the level of boil-off corruption present and the time when the corruption is complete. After the boil-off condition is determined to be complete, control of the combustion parameters are returned to a normal regime of a flexible fuel compensation system using the inferred alcohol content from the employed mode of boil-off compensation.

摘要翻译： 本发明提供一种在沸腾状态期间没有PCV螺线管的内燃机的燃烧参数的控制方法。 该方法检测沸腾状态，并根据推测的酒精含量乘数更新系统的活动状态，实现两种蒸发补偿模式之一。 该方法还确定了通过内燃机的气流的性质，并确定了现在的沸腾腐败程度和腐败完成时间。 在蒸发条件被确定为完成之后，使用来自所采用的蒸发补偿模式的推断的醇含量将燃烧参数的控制返回到柔性燃料补偿系统的正常状态。