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1. 发明授权

US06041278A Method of triggering a determination of the composition of fuel in a flexible fueled vehicle 失效
标题翻译：触发灵活燃料车辆燃料组成的判定方法
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。

2. 发明授权

US5881703A Method of determining the composition of fuel in a flexible fueled vehicle 失效
标题翻译：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。

3. 发明授权

US06257174B1 Method of determining the composition of fuel in a flexible fueled vehicle after fuel blending 有权
标题翻译：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。

4. 发明授权

US5901671A Method of determining the composition of fuel in a flexible fueled vehicle after fuel blending 失效
标题翻译：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。

5. 发明授权

US5651350A Method of leak detection for an evaporative emission control system 失效
标题翻译：蒸发排放控制系统的泄漏检测方法
公开(公告)号：US5651350A
公开(公告)日：1997-07-29
申请号：US599361
申请日：1996-03-05
申请人： William B. Blomquist , Gary D. Dawson , Roland T. Richardson , Glen Tallarek , John E. Letcher , Mark E. Hope
发明人： William B. Blomquist , Gary D. Dawson , Roland T. Richardson , Glen Tallarek , John E. Letcher , Mark E. Hope
IPC分类号： F02M25/08 , F02M33/02
CPC分类号： F02M25/0818
摘要： A method of leak detection for an evaporative emission control system to determine if a leak is present in a portion of the system includes the steps of energizing a leak detection pump to close a canister vent control valve of the system and pressurize the system, and determining whether a possible pinched line of the system has occurred.
摘要翻译：一种用于蒸发排放控制系统的泄漏检测方法，用于确定系统的一部分中是否存在泄漏，包括给泄漏检测泵通电以关闭系统的罐排气控制阀并对系统加压并确定是否发生了系统的可能的夹紧线。

6. 发明授权

US5715799A Method of leak detection during low engine vacuum for an evaporative emission control system 失效
标题翻译：用于蒸发排放控制系统的低发动机真空期间的泄漏检测方法
公开(公告)号：US5715799A
公开(公告)日：1998-02-10
申请号：US610947
申请日：1996-03-05
申请人： William B. Blomquist , Gary D. Dawson , Roland T. Richardson , Glen Tallarek , John E. Letcher , Mark E. Hope
发明人： William B. Blomquist , Gary D. Dawson , Roland T. Richardson , Glen Tallarek , John E. Letcher , Mark E. Hope
IPC分类号： F02M25/08 , F02M37/04
CPC分类号： F02M25/0818
摘要： A method of leak detection for an evaporative emission control system during periods of low engine vacuum includes the steps of pulsing a leak detection pump at a predetermined rate and determining whether engine vacuum level is low. The method also includes the steps of maintaining pressurization of the evaporative emission control system if the engine vacuum level is low, maintaining pressurization behind a vapor canister vent valve if the engine vacuum level is low, and detecting for leaks in the evaporative emission control system after a normal engine vacuum level is attained.
摘要翻译：在低发动机真空期间的蒸发排放控制系统的泄漏检测方法包括以预定速率脉冲泄漏检测泵并确定发动机真空度是否低的步骤。该方法还包括以下步骤：如果发动机真空度低，则保持蒸发排放控制系统的加压，如果发动机真空度低，则在蒸汽罐排气阀后面保持加压，以及在蒸发排放控制系统中的泄漏检测之后达到正常的发动机真空度。

7. 发明授权

US5606121A Method of testing an evaporative emission control system 失效
标题翻译：蒸发排放控制系统的测试方法
公开(公告)号：US5606121A
公开(公告)日：1997-02-25
申请号：US611137
申请日：1996-03-05
申请人： William B. Blomquist , Gary D. Dawson , Roland T. Richardson , Glen Tallarek , John E. Letcher , Mark E. Hope
发明人： William B. Blomquist , Gary D. Dawson , Roland T. Richardson , Glen Tallarek , John E. Letcher , Mark E. Hope
IPC分类号： G01M3/32 , G01M15/00
CPC分类号： G01M3/3236
摘要： A method of testing an evaporative emission control system to determine if the evaporative emission control system has reached a predetermined pressure includes the steps of pulsing a leak detection pump at a predetermined rate and determining if a last pump period is greater than or equal to a predetermined test mode period threshold. The method also includes the steps of pressurizing the evaporative emission control system if the last pump period is less than a test mode period threshold and continuing the method if the last pump period is equal to or greater than the test mode period threshold.
摘要翻译：一种测试蒸发排放控制系统以确定蒸发排放控制系统是否已经达到预定压力的方法包括以预定速率脉动泄漏检测泵的步骤，并且确定最后泵周期是否大于或等于预定的测试模式周期阈值。该方法还包括以下步骤：如果最后泵周期小于测试模式周期阈值，则对蒸发排放控制系统进行加压，并且如果最后泵周期等于或大于测试模式周期阈值，则继续该方法。

8. 发明授权

US5616836A Method of pinched line detection for an evaporative emission control system 失效
标题翻译：蒸发排放控制系统的夹线检测方法
公开(公告)号：US5616836A
公开(公告)日：1997-04-01
申请号：US611138
申请日：1996-03-05
申请人： William B. Blomquist , Gary D. Dawson , Roland T. Richardson , Glen Tallarek
发明人： William B. Blomquist , Gary D. Dawson , Roland T. Richardson , Glen Tallarek
IPC分类号： G01M3/02 , G01M15/00
CPC分类号： G01M3/025
摘要： A method of pinched line detection for an evaporative emission control system to determine if a pinched line is present within the system includes the steps of pulsing a leak detection pump at a predetermined rate and determining if a last pump period is less than a predetermined possible pinched line period limit. The method also includes the steps of concluding a possible pinched line if the last pump period is not less than the possible pinched line period limit and concluding that there is not a possible pinched line if the last pump period is greater than or equal to the possible pinched line period limit.
摘要翻译：一种用于蒸发排放控制系统的夹紧线检测方法，用于确定系统内是否存在夹紧线，包括以预定速率脉冲泄漏检测泵的步骤，以及确定最后泵周期是否小于预定的可能夹紧行期限。该方法还包括以下步骤：如果最后一个泵周期不小于可能的夹持线周期极限，则确定可能的夹紧线，并且断定如果最后一个泵周期大于或等于可能的限制行期限。

9. 发明授权

US5685279A Method of de-pressurizing an evaporative emission control system 失效
标题翻译：减压蒸发排放控制系统的方法
公开(公告)号：US5685279A
公开(公告)日：1997-11-11
申请号：US611139
申请日：1996-03-05
申请人： William B. Blomquist , Gary D. Dawson , Roland T. Richardson , Glen Tallarek
发明人： William B. Blomquist , Gary D. Dawson , Roland T. Richardson , Glen Tallarek
IPC分类号： F02M25/08 , F02M37/04
CPC分类号： F02M25/0818
摘要： A method of de-pressurizing an evaporative emission control system includes the steps of pulsing a leak detection pump at a predetermined rate and purging accumulated vapors from a vapor canister. The method also includes the steps of determining whether a last pump period is greater than or equal to a predetermined system de-pressurization mode pump period and continuing the method if the last pump period is less than the system de-pressurization mode pump period.
摘要翻译：一种对蒸发排放控制系统进行减压的方法包括以预定的速率脉冲泄漏检测泵的步骤，并且从蒸气罐吹扫积聚的蒸汽。该方法还包括以下步骤：确定最后泵周期是否大于或等于预定的系统减压模式泵周期，如果最后泵周期小于系统减压模式泵周期，则继续该方法。

10. 发明授权

US5641899A Method of checking for purge flow in an evaporative emission control system 失效
标题翻译：在蒸发排放控制系统中检查吹扫流量的方法
公开(公告)号：US5641899A
公开(公告)日：1997-06-24
申请号：US611140
申请日：1996-03-05
申请人： William B. Blomquist , Gary D. Dawson , Roland T. Richardson , Glen Tallarek
发明人： William B. Blomquist , Gary D. Dawson , Roland T. Richardson , Glen Tallarek
IPC分类号： F02M25/08 , F04B51/00 , F02M33/02 , G01M15/00
CPC分类号： F04B51/00 , F02M25/0818
摘要： A method of checking for purge flow in an evaporative emission control system includes the steps of determining if there is a fault in a leak detection pump, de-energizing the leak detection pump if there is a fault, and determining the state of a leak detection pump switch. The method also includes the steps of concluding a pump switch closed state if the pump switch is not opened, concluding a pump switch opened state if the pump switch is not closed, and monitoring a purge duty cycle until the evaporative emission control system is depressurized.
摘要翻译：一种在蒸发排放控制系统中检查吹扫流量的方法包括以下步骤：确定泄漏检测泵是否存在故障，如果存在故障，则对泄漏检测泵进行断电，并确定泄漏检测的状态泵开关。该方法还包括以下步骤：如果泵开关未打开，则结束泵开关闭合状态，如果泵开关未闭合，则结束泵开关打开状态，并且监测净化占空比，直到蒸发排放控制系统被减压。

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