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公开(公告)号：US5400762A
公开(公告)日：1995-03-28
申请号：US933552
申请日：1992-08-24
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。
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2.发明授权
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
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。
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公开(公告)号：US5520162A
公开(公告)日：1996-05-28
申请号：US425327
申请日：1995-04-17
CPC分类号： F02D41/0025 , F02D19/061 , F02D19/0631 , F02D19/081 , F02D19/084 , F02D19/087 , F02D2200/0611 , Y02T10/36
摘要： A flexible fuel compensation system including a method of methanol boil-off compensation. The methanol boil-off compensation method includes an initialization routine, a run mode routine and a shutdown routine. The method will monitor a plurality of flags to determine when the methanol boil-off compensation should be used.
摘要翻译： 一种灵活的燃料补偿系统，包括甲醇沸腾补偿方法。 甲醇沸腾补偿方法包括初始化程序，运行模式程序和停机程序。 该方法将监控多个标志，以确定何时应使用甲醇沸腾补偿。
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公开(公告)号：US5435285A
公开(公告)日：1995-07-25
申请号：US57079
申请日：1993-05-04
申请人： Joseph B. Adams , John S. Amatangelo , Francis M. Fodale , William D. Rotramel , Dennis A. Soltis , Thomas M. Welker
发明人： Joseph B. Adams , John S. Amatangelo , Francis M. Fodale , William D. Rotramel , Dennis A. Soltis , Thomas M. Welker
CPC分类号： F02D41/1443 , F02D19/061 , F02D19/084 , F02D19/087 , F02D41/0025 , F02D41/32 , F02D2200/0611 , Y02T10/36
摘要： A flexible fuel compensation system for an internal combustion engine. The flex-fuel system includes a method of run fuel pulsewidth calculation which controls the amount of fuel being sent to the fuel injectors. The method calculates multipliers to be used in calculating a first and second pulsewidth multiplier and fuel injector pulsewidths.
摘要翻译： 一种用于内燃机的柔性燃料补偿系统。 柔性燃料系统包括运行燃料脉冲宽度计算的方法，其控制发送到燃料喷射器的燃料量。 该方法计算用于计算第一和第二脉冲宽度乘数器和燃料喷射器脉冲宽度的乘法器。
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5.发明授权Method of compensating for boil-off alcohol in a flexible fueled vehicle without a PVC solenoid 失效在没有PVC电磁阀的柔性燃料车辆中补偿蒸馏酒的方法
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
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。
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6.发明授权Method of determining the composition of fuel in a flexible fueled vehicle without an O.sub.2 sensor 失效确定没有O2传感器的柔性燃料车辆燃料组成的方法
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
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。
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7.发明授权
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
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。
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公开(公告)号：US06240900B1
公开(公告)日：2001-06-05
申请号：US09406986
申请日：1999-09-28
申请人： Christopher P. Thomas , William D. Rotramel , Howard W. Krausman , Gregory T. Weber , Joseph C. Umloff
发明人： Christopher P. Thomas , William D. Rotramel , Howard W. Krausman , Gregory T. Weber , Joseph C. Umloff
IPC分类号： F02P5152
CPC分类号： G01L23/225 , F02P5/1522 , Y02T10/46
摘要： A method is provided for controlling knock in an internal combustion engine. The method utilizes an adaptive control scheme to tailor knock thresholds to the current engine operating conditions, as well as to identify the cylinder in which the knocking condition occurred. The method utilizes a modified spark advance to alter the spark timing for the engine cylinders if a knocking condition is detected and a predetermined set of conditions has been met.
摘要翻译： 提供了一种用于控制内燃机中的爆震的方法。 该方法利用自适应控制方案来对当前发动机的运行条件进行敲击阈值，以及识别发生爆震条件的气缸。 如果检测到爆震条件并满足预定的条件，该方法利用改进的火花提前来改变发动机气缸的火花正时。
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公开(公告)号：US5365917A
公开(公告)日：1994-11-22
申请号：US57248
申请日：1993-05-04
CPC分类号： F02D19/087 , F02D19/084 , F02D41/0025 , F02D2200/0611 , Y02T10/36
摘要： A flexible fuel compensation system including a method of hot soak fuel enrichment. The hot soak fuel enrichment method includes checking a plurality of enabling conditions. The method also increments of decrements a hot fuel enrichment multiplier depending on conditions of the vehicle. The hot fuel enrichment multiplier is then used to adjust the amount of fuel being sent to the fuel injectors.
摘要翻译： 一种柔性燃料补偿系统，包括一种热浸燃料浓缩的方法。 热浸燃料浓缩方法包括检查多个使能条件。 该方法还根据车辆的条件递增热燃料浓缩乘数。 然后使用热燃料浓缩倍增器来调节发送到燃料喷射器的燃料量。
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