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    Method of determining the composition of fuel in a flexible fueled vehicle after fuel blending
    4.
    发明授权
    Method of determining the composition of fuel in a flexible fueled vehicle after fuel blending 有权
    燃料混合后在柔性燃料车辆中确定燃料组成的方法

    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。

    Method of determining the composition of fuel in a flexible fueled vehicle after fuel blending
    5.
    发明授权
    Method of determining the composition of fuel in a flexible fueled vehicle after fuel blending 失效
    燃料混合后在柔性燃料车辆中确定燃料组成的方法

    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。

    Method of determining the composition of fuel in a flexible fueled vehicle
    6.
    发明授权
    Method of determining the composition of fuel in a flexible fueled vehicle 失效
    确定柔性燃料车辆燃料组成的方法

    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。

    Method of compensating for boil-off alcohol in a flexible fueled vehicle with a PCV solenoid
    7.
    发明授权
    Method of compensating for boil-off alcohol in a flexible fueled vehicle with a PCV solenoid 失效
    用PCV螺线管补偿柔性燃料车辆中的蒸发酒精的方法

    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。

    Method for determining fuel composition
    8.
    发明授权
    Method for determining fuel composition 失效
    确定燃料组成的方法

    公开(公告)号：US5400762A

    公开(公告)日：1995-03-28

    申请号：US933552

    申请日：1992-08-24

    申请人： Francis M. Fodale ,  Robert J. Nankee, II ,  William D. Rotramel ,  Mary Joyce ,  Stuart M. Davis

    发明人： Francis M. Fodale ,  Robert J. Nankee, II ,  William D. Rotramel ,  Mary Joyce ,  Stuart M. Davis

    IPC分类号： F02D19/08 ,  F02D41/00 ,  F02D41/14 ,  F02D41/22

    CPC分类号： F02D41/0025 ,  F02D19/0623 ,  F02D19/084 ,  F02D19/087 ,  F02D19/088 ,  F02D2200/0611 ,  Y02T10/36

    摘要： A method is provided for checking the function of a fuel composition sensor and for learning the percent alcohol content of a fuel used in a motor vehicle capable of operating on more than one type of fuel, as an alternative to a fuel composition sensor. The present invention improves the reliability of a motor vehicle utilizing a fuel composition sensor by allowing vehicle operation to continue uninterrupted, such as when a short or open condition exists within the sensor. The method first determines whether conditions are such that the percent alcohol content of a fuel should be "learned". If conditions are appropriated, then necessary engine operating conditions are first initialized. The oxygen sensor output signal is checked to determine whether the engine is operating too rich or lean. The value of percent alcohol content stored in the engine control unit's memory is modified in the direction of stoichiometric engine operation. In this manner, the engine is able to "learn" the percent alcohol content of the fuel and make the appropriate adjustments to operating parameters.

    摘要翻译： 提供了一种用于检查燃料组成传感器的功能并且用于学习在能够对多于一种类型的燃料进行操作的机动车辆中使用的燃料的百分比酒精含量的方法，作为燃料组合物传感器的替代物。 本发明通过允许车辆操作不间断地继续使用燃料成分传感器的机动车辆的可靠性，例如当传感器内存在短路或打开状态时，可以提高可靠性。 该方法首先确定条件是否应使燃料的酒精含量百分比“学习”。 如果条件被占用，则首先初始化必要的发动机运行条件。 检查氧气传感器输出信号，以确定发动机是否运行太丰富或偏重。 存储在发动机控制单元的存储器中的酒精含量百分比的值在化学计量发动机操作的方向上被修改。 以这种方式，发动机能够“学习”燃料的酒精含量百分比并对操作参数进行适当的调整。

    Method of controlling a vapor storage canister for a purge control system
    10.
    发明授权
    Method of controlling a vapor storage canister for a purge control system 失效
    控制用于清洗控制系统的蒸气储存罐的方法

    公开(公告)号：US5682869A

    公开(公告)日：1997-11-04

    申请号：US639604

    申请日：1996-04-29

    申请人： Robert J. Nankee, II ,  Richard K. Moote ,  Charles B. Dupuis ,  Dennis A. Krozek ,  Shean P. Huff ,  Erika J. Boss ,  Danny K. Schuelke

    发明人： Robert J. Nankee, II ,  Richard K. Moote ,  Charles B. Dupuis ,  Dennis A. Krozek ,  Shean P. Huff ,  Erika J. Boss ,  Danny K. Schuelke

    IPC分类号： F02D41/00 ,  F02D41/14 ,  F02M25/08

    CPC分类号： F02D41/0045 ,  F02D41/0042

    摘要： A method of controlling a vapor storage canister for a purge control system of an internal combustion engine is provided. The method includes the steps of determining if predetermined conditions are right for controlling a vapor storage canister and maintaining normal fuel feedback operation if the predetermined conditions are not right for controlling the vapor storage canister. The method also includes the steps of determining if the vapor storage canister is loaded if the predetermined conditions are right for controlling the vapor storage canister, maintaining normal fuel feedback operation if the vapor storage canister is not loaded and modifying a duty cycle of a purge solenoid to maximize purge if the vapor storage canister is loaded. The method further includes the steps of updating a loaded canister total purge multiplier and using the total purge multiplier to vary the amount of fuel being delivered to the internal combustion engine.

    摘要翻译： 提供一种控制用于内燃机的净化控制系统的蒸气存储罐的方法。 该方法包括以下步骤：如果预定条件不适于控制蒸汽储存罐，则确定预定条件是否适合用于控制蒸气储存罐并维持正常的燃料反馈操作。 该方法还包括以下步骤：如果预定条件适合用于控制蒸汽储存罐，则确定蒸气储存罐是否被加载，如果蒸汽储存罐未被加载并且修改清洗螺线管的占空比，则保持正常的燃料反馈操作 如果加载蒸气储存罐，最大限度地清除。 该方法还包括以下步骤：更新加载的罐总净化倍增器，并使用总净化倍增器来改变被输送到内燃机的燃料量。