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1.发明申请METHOD AND DEVICE FOR DIAGNOSING AN INJECTION VALVE, CONNECTED TO A FUEL RAIL, OF AN INTERNAL COMBUSTION ENGINE 有权用于诊断连接到燃料电池的内燃机的注射阀的方法和装置公开(公告)号：US20100251809A1
公开(公告)日：2010-10-07
申请号：US12665138
申请日：2008-06-11
IPC分类号： G01M15/04
CPC分类号： F02D41/22 , F02D41/3809 , F02D2041/224 , F02D2200/0602
摘要： In a method for diagnosing an injection valve (5), in an overrun fuel cut-off phase the fuel supply to the fuel rail (4) is closed, and after the fuel supply has been closed off a first fuel pressure in the fuel rail (4) is measured, and after the first measurement of the fuel pressure an injection valve (5) is actuated for a test injection. After the test injection a second fuel pressure in the fuel rail (4) is measured, a differential pressure value (ΔP) is formed from the first and second measured fuel pressures and a difference of an operating parameter from a reference parameter is determined from the differential pressure value (ΔP), and when a previously defined maximum difference is exceeded the injection valve (5) is detected as being defective.
摘要翻译： 在用于诊断喷射阀（5）的方法中，在超限燃料切断阶段，向燃料轨道（4）的燃料供给关闭，并且在燃料供给已经被关闭之后燃料轨道中的第一燃料压力 （4），并且在燃料压力的第一次测量之后，喷射阀（5）被致动以进行测试喷射。 在测试注射之后，测量燃料轨道（4）中的第二燃料压力，根据第一和第二测量燃料压力形成压差值（＆Dgr; P），并且确定操作参数与参考参数的差异 从压差值（＆Dgr; P）开始，当超过先前定义的最大差值时，检测出喷射阀（5）为有缺陷的。
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2.发明申请公开(公告)号：US20090177366A1
公开(公告)日：2009-07-09
申请号：US12300846
申请日：2007-03-02
IPC分类号： F02D41/30
CPC分类号： F02D41/0087 , F02D41/123 , F02D41/2438 , F02D41/2441 , F02D41/247 , F02D41/3845 , F02D41/402 , F02D2200/0602 , F02D2200/0614 , F02D2250/31
摘要： In order to reduce the quantity deviation of a fuel injection valve, it is proposed according to the various embodiments that a test injection be carried out during an overrun cut-off phase of a motor vehicle in operation. In the process, the fuel rail (2) is closed on the inlet side and the selected injection valve (1) is activated. A quantity difference between the predetermined setpoint and the actual value can be determined by measuring a pressure difference in the fuel rail (2) before and after the test injection. This results in a correction factor with which the activation for the selected injection valve (1) is corrected for subsequent injections.
摘要翻译： 为了减少燃料喷射阀的数量偏差，提出根据各种实施例，在运行中的机动车辆的超速停机阶段期间执行测试喷射。 在该过程中，燃料导轨（2）在入口侧关闭，并且所选择的喷射阀（1）被启动。 可以通过在测试注射之前和之后测量燃料轨（2）中的压力差来确定预定设定点与实际值之间的量差。 这导致校正因子，用于所选择的注射阀（1）的激活被校正用于随后的注射。
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3.发明申请METHOD FOR DIAGNOSING THE LEAKAGE OF AN INJECTOR AND ASSOCIATED CONTROL DEVICE 有权用于诊断注射器和相关控制装置的泄漏的方法公开(公告)号：US20080302176A1
公开(公告)日：2008-12-11
申请号：US12116488
申请日：2008-05-07
IPC分类号： G01M15/02
CPC分类号： F02D41/042 , F02D41/062 , F02D41/1497 , F02D41/221 , F02D2041/225
摘要： In order to diagnose the leakage of an injector (IN1) which serves for injecting fuel into the combustion chamber of at least one cylinder (CY1) of a combustion engine (CE), it is detected, in an observation time window (OPS2) during which the particular injector (IN1) of the combustion engine (CE) that is to be tested is deactivated, whether a deviation (DV) of the speed curve (GS2) of the combustion engine (CE) has occurred relative to a reference speed curve (GS1) which indicates injector leak-tightness. In the event that a deviation (DV) is detected, it is concluded that there is a leakage of the injector (IN1).
摘要翻译： 为了诊断用于将燃料喷射到内燃机（CE）的至少一个气缸（CY1）的燃烧室中的喷射器（IN1）的泄漏，在观察时间窗口（OPS2）期间检测 其中待测试的内燃机（CE）的特定喷射器（IN1）被停用，相对于参考速度曲线是否已经发生了内燃机（CE）的速度曲线（GS2）的偏差（DV） （GS1），表示进样口密封性。 在检测到偏差（DV）的情况下，得出结论是喷射器（IN1）有泄漏。
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4.发明授权公开(公告)号：US07913666B2
公开(公告)日：2011-03-29
申请号：US12300846
申请日：2007-03-02
IPC分类号： F02M1/00
CPC分类号： F02D41/0087 , F02D41/123 , F02D41/2438 , F02D41/2441 , F02D41/247 , F02D41/3845 , F02D41/402 , F02D2200/0602 , F02D2200/0614 , F02D2250/31
摘要： In order to reduce the quantity deviation of a fuel injection valve, it is proposed according to the various embodiments that a test injection be carried out during an overrun cut-off phase of a motor vehicle in operation. In the process, the fuel rail (2) is closed on the inlet side and the selected injection valve (1) is activated. A quantity difference between the predetermined setpoint and the actual value can be determined by measuring a pressure difference in the fuel rail (2) before and after the test injection. This results in a correction factor with which the activation for the selected injection valve (1) is corrected for subsequent injections.
摘要翻译： 为了减少燃料喷射阀的数量偏差，提出根据各种实施例，在运行中的机动车辆的超速停机阶段期间执行测试喷射。 在该过程中，燃料导轨（2）在入口侧关闭，并且所选择的喷射阀（1）被启动。 可以通过在测试注射之前和之后测量燃料轨（2）中的压力差来确定预定设定点与实际值之间的量差。 这导致校正因子，用于所选择的注射阀（1）的激活被校正用于随后的注射。
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5.发明授权Method for diagnosing the leakage of an injector and associated control device 有权用于诊断注射器和相关联的控制装置的泄漏的方法公开(公告)号：US07805985B2
公开(公告)日：2010-10-05
申请号：US12116488
申请日：2008-05-07
IPC分类号： G01M15/04
CPC分类号： F02D41/042 , F02D41/062 , F02D41/1497 , F02D41/221 , F02D2041/225
摘要： In order to diagnose the leakage of an injector (IN1) which serves for injecting fuel into the combustion chamber of at least one cylinder (CY1) of a combustion engine (CE), it is detected, in an observation time window (OPS2) during which the particular injector (IN1) of the combustion engine (CE) that is to be tested is deactivated, whether a deviation (DV) of the speed curve (GS2) of the combustion engine (CE) has occurred relative to a reference speed curve (GS1) which indicates injector leak-tightness. In the event that a deviation (DV) is detected, it is concluded that there is a leakage of the injector (IN1).
摘要翻译： 为了诊断用于将燃料喷射到内燃机（CE）的至少一个气缸（CY1）的燃烧室中的喷射器（IN1）的泄漏，在观察时间窗口（OPS2）期间检测 其中待测试的内燃机（CE）的特定喷射器（IN1）被停用，相对于参考速度曲线是否已经发生了内燃机（CE）的速度曲线（GS2）的偏差（DV） （GS1），表示进样口密封性。 在检测到偏差（DV）的情况下，得出结论是喷射器（IN1）有泄漏。
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公开(公告)号：US07793640B2
公开(公告)日：2010-09-14
申请号：US12030091
申请日：2008-02-12
CPC分类号： F02D41/221 , F02D41/008 , F02D41/123 , F02D41/1456 , F02D41/1498
摘要： An injection valve of an internal combustion engine is actuated at least once by at least one specified control value of an actuating variable for metering at least one specified minimum quantity corrected by a correction value. The correction value for the control value is adjusted according to a deviation of an expected response value of an actuating variable from an actual response value of the response variable, as a result of the actuation of the respective injection valve, that is to say by way of a reduction of the deviation between the expected response value of the response variable and the actual response value of the response variable. If the correction value undershoots a specified negative correction threshold value or overshoots a specified positive correction threshold value, a fault is detected in a component which is affecting the exhaust gas in the cylinder assigned to the respective injection valve.
摘要翻译： 内燃机的喷射阀至少一次致动一个致动变量的至少一个指定的控制值，用于计量由校正值校正的至少一个指定的最小量。 作为各个喷射阀的动作的结果，根据作动变量的预期响应值与响应变量的实际响应值的偏差来调整控制值的校正值，也就是说 减小响应变量的预期响应值与响应变量的实际响应值之间的偏差。 如果校正值低于指定的负校正阈值或超过指定的正校正阈值，则在影响分配给相应喷射阀的气缸中的废气的部件中检测到故障。
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公开(公告)号：US20090272367A1
公开(公告)日：2009-11-05
申请号：US12296442
申请日：2007-05-31
CPC分类号： F02D41/0085 , F01N11/007 , F02D41/1456 , F02D2041/1426 , F02D2250/14 , Y02T10/47
摘要： By a respective cylinder-specific lambda regulator, a regulator value for influencing the air/fuel ratio in the respective cylinder is determined as a function of the cylinder-specific air/fuel ratio measured for the respective cylinder. The regulator value is monitored for the attainment of a first predefined threshold value, and when the latter is reached, a lambda quality value is determined which is representative of the deviation of the measured cylinder-specific air/fuel ratios assigned to the respective cylinders. The regulator value is monitored for the attainment of a second predefined threshold value which is representative of a more pronounced regulating intervention than the first threshold value. When the second predefined threshold value is reached, the lambda quality value is determined. If the lambda quality value assigned to the first threshold value is lower than the value assigned to the second threshold value, unstable regulating behaviour is identified. Stable regulating behaviour is identified otherwise.
摘要翻译： 通过相应的气缸专用λ调节器，确定用于影响相应气缸中的空气/燃料比的调节器值作为针对相应气缸测量的气缸特定空气/燃料比的函数。 监测调节器值以获得第一预定阈值，并且当达到第一预定义阈值时，确定λ质量值，其表示分配给相应气缸的测量的气缸特定空气/燃料比的偏差。 监测调节器值达到第二预定义阈值，其表示比第一阈值更明显的调节干预。 当达到第二预定阈值时，确定λ质量值。 如果分配给第一阈值的λ质量值低于分配给第二阈值的值，则识别出不稳定的调节行为。 否则确定稳定的调节行为。
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8.发明授权Method and device for diagnosing an injection valve, connected to a fuel rail, of an internal combustion engine 有权用于诊断连接到内燃机的燃料轨的喷射阀的方法和装置公开(公告)号：US08333109B2
公开(公告)日：2012-12-18
申请号：US12665138
申请日：2008-06-11
IPC分类号： G01M15/09
CPC分类号： F02D41/22 , F02D41/3809 , F02D2041/224 , F02D2200/0602
摘要： In a method for diagnosing an injection valve (5), in an overrun fuel cut-off phase the fuel supply to the fuel rail (4) is closed, and after the fuel supply has been closed off a first fuel pressure in the fuel rail (4) is measured, and after the first measurement of the fuel pressure an injection valve (5) is actuated for a test injection. After the test injection a second fuel pressure in the fuel rail (4) is measured, a differential pressure value (ΔP) is formed from the first and second measured fuel pressures and a difference of an operating parameter from a reference parameter is determined from the differential pressure value (ΔP), and when a previously defined maximum difference is exceeded the injection valve (5) is detected as being defective.
摘要翻译： 在用于诊断喷射阀（5）的方法中，在超限燃料切断阶段，向燃料轨道（4）的燃料供给关闭，并且在燃料供给已经被关闭之后燃料轨道中的第一燃料压力 （4），并且在燃料压力的第一次测量之后，喷射阀（5）被致动以进行测试喷射。 在测试注射之后，测量燃料轨道（4）中的第二燃料压力，根据第一和第二测量燃料压力形成压差值（＆Dgr; P），并且确定操作参数与参考参数的差异 从压差值（＆Dgr; P）开始，当超过先前定义的最大差值时，检测出喷射阀（5）为有缺陷的。
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公开(公告)号：US07894972B2
公开(公告)日：2011-02-22
申请号：US12296442
申请日：2007-05-31
IPC分类号： B60T7/12
CPC分类号： F02D41/0085 , F01N11/007 , F02D41/1456 , F02D2041/1426 , F02D2250/14 , Y02T10/47
摘要： By a respective cylinder-specific lambda regulator, a regulator value for influencing the air/fuel ratio in the respective cylinder is determined as a function of the cylinder-specific air/fuel ratio measured for the respective cylinder. The regulator value is monitored for the attainment of a first predefined threshold value, and when the latter is reached, a lambda quality value is determined which is representative of the deviation of the measured cylinder-specific air/fuel ratios assigned to the respective cylinders. The regulator value is monitored for the attainment of a second predefined threshold value which is representative of a more pronounced regulating intervention than the first threshold value. When the second predefined threshold value is reached, the lambda quality value is determined. If the lambda quality value assigned to the first threshold value is lower than the value assigned to the second threshold value, unstable regulating behavior is identified. Stable regulating behavior is identified otherwise.
摘要翻译： 通过相应的气缸专用λ调节器，确定用于影响相应气缸中的空气/燃料比的调节器值作为针对相应气缸测量的气缸特定空气/燃料比的函数。 监测调节器值以获得第一预定阈值，并且当达到第一预定义阈值时，确定λ质量值，其表示分配给相应气缸的测量的气缸特定空气/燃料比的偏差。 监测调节器值达到第二预定义阈值，其表示比第一阈值更明显的调节干预。 当达到第二预定阈值时，确定λ质量值。 如果分配给第一阈值的λ质量值低于分配给第二阈值的值，则识别出不稳定的调节行为。 否则确定稳定的调节行为。
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公开(公告)号：US07885753B2
公开(公告)日：2011-02-08
申请号：US12298406
申请日：2007-04-12
IPC分类号： F02D41/40
CPC分类号： F02D41/2467 , F01N3/2006 , F01N13/009 , F01N2430/085 , F02D41/008 , F02D41/1454 , F02D41/1497 , F02D41/16 , F02D41/2438 , F02D41/405 , F02D2200/0602 , F02M45/04 , Y02A50/2322
摘要： In a first operating state, the fuel metering of one of the cylinders is controlled in first metering pulses with the same pulse characteristic during a respective one working cycle, and the metering of fuel into the other cylinders by at least one second metering pulse with a different pulse characteristic. The first pulse number and characteristic is predefined such that the same fuel mass should be metered based on an assumed injection valve characteristic as with the one second metering pulse. Depending on the measurement signal, a correction value for the one cylinder is determined. To meter the fuel based on the assumed injection valve characteristic, a single first metering pulse would be generated during a respective one working cycle. The correction value for the one cylinder is used during the rest of the operation to adapt the first metering pulse in the second operating state.
摘要翻译： 在第一操作状态下，其中一个气缸的燃料计量在相应的一个工作循环期间以相同的脉冲特性在第一测量脉冲中被控制，并且通过至少一个第二测量脉冲将燃料计量到另一个气缸中 不同的脉冲特性。 第一脉冲数和特性是预定义的，使得相同的燃料质量应该基于假设的喷射阀特性与一秒计量脉冲一样计量。 根据测量信号，确定一个气缸的校正值。 为了基于假定的喷射阀特性来计量燃料，在相应的一个工作循环期间将产生单个第一计量脉冲。 在其余操作期间使用一个气缸的校正值，以使第一测量脉冲适应于第二操作状态。
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