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1.发明授权Method and arrangement for monitoring a lambda probe in an internal combustion engine 失效用于监测内燃机中的λ探针的方法和装置
公开(公告)号：US5307625A
公开(公告)日：1994-05-03
申请号：US921770
申请日：1992-07-30
CPC分类号： F02D41/1483 , F02D41/1441 , F02D41/1481 , F02D41/1482 , F02D41/1495
摘要： The invention is directed to a method and an arrangement for monitoring deterioration of lambda probes in the context of a two-probe control. The signal of the lambda probe forward of the converter functions to control the lambda controller and the signal of the lambda probe rearward of the converter influences the lambda controller via an actuating variable and the degree to which the controller is influenced operates for monitoring of the probe forward of the converter. With this method and arrangement, the quality and deterioration of the lambda probe forward of the converter are advantageously detected and, if required, an alarm signal is generated.
摘要翻译： 本发明涉及一种用于在双探针控制的上下文中监测λ探针的劣化的方法和装置。 转换器前面的λ探测器的信号用于控制λ控制器，并且转换器后面的λ探测器的信号通过致动变量影响λ控制器，并且控制器受影响的程度用于监测探头 转发器前进。 利用该方法和布置，有利地检测转换器前端的λ探针的质量和劣化，并且如果需要，产生报警信号。
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公开(公告)号：US6131446A
公开(公告)日：2000-10-17
申请号：US84789
申请日：1998-05-27
CPC分类号： F02D41/1441 , F02D41/1474 , F02D41/1495 , F02D41/222 , F02D41/123 , Y02T10/40
摘要： The invention is directed to a method for diagnosing an exhaust-gas probe mounted in the exhaust-gas system of an internal combustion engine for conducting the exhaust gas of the engine. The exhaust-gas probe is mounted downstream of the catalytic converter. The output signal of the exhaust-gas probe is monitored as the output signal changes in response to changes of the concentration of at least one of the components of the exhaust gas. The rate of the change is applied as a criterion as to the state of deterioration of the exhaust-gas probe.
摘要翻译： 本发明涉及一种用于诊断安装在用于引导发动机的废气的内燃机的排气系统中的排气探头的方法。 排气探头安装在催化转化器的下游。 随着输出信号响应于废气中的至少一个组分的浓度变化而监测排气探针的输出信号。 作为废气探针的劣化状态的标准，适用变化率。
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公开(公告)号：US6073083A
公开(公告)日：2000-06-06
申请号：US923966
申请日：1997-09-05
申请人： Eberhard Schnaibel , Erich Junginger , Lothar Raff
发明人： Eberhard Schnaibel , Erich Junginger , Lothar Raff
IPC分类号： G01N27/409 , F02D41/14 , G01N27/406 , G01R27/02 , G01R27/00
CPC分类号： F02D41/1476 , G01N27/4065 , F02D41/1456
摘要： The invention is directed to an arrangement for determining the internal resistance of a lambda probe having a positive pole and an internal resistance. A computer includes at least one computer port having a switchable state, a signal input and fixed pregiven values. A supply voltage source having a positive pole and a measurement resistor are also provided. The positive pole of the supply voltage source is connected to the positive pole of the lambda probe via the computer port and the measurement resistor. An analog/digital converter is connected forward of the signal input and the positive pole of the lambda probe is connected directly to the analog/digital converter for applying variable values to the signal input via the analog/digital converter. The computer is adapted to compute the internal resistance of the lambda probe from the variable values applied to the signal input and the fixed pregiven values. A method of determining the internal resistance of a lambda probe is also disclosed.
摘要翻译： 本发明涉及一种用于确定具有正极和内阻的λ探针的内阻的装置。 计算机包括具有可切换状态，信号输入和固定预定值的至少一个计算机端口。 还提供了具有正极和测量电阻器的电源电压源。 电源电压源的正极通过计算机端口和测量电阻连接到λ探头的正极。 模拟/数字转换器连接在信号输入端前端，λ探针的正极直接连接到模/数转换器，用于通过模拟/数字转换器将变量值应用于信号输入。 计算机适用于从应用于信号输入的变量值和固定预定值计算λ探针的内部电阻。 还公开了一种确定λ探针内阻的方法。
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公开(公告)号：US6034610A
公开(公告)日：2000-03-07
申请号：US114483
申请日：1998-07-13
申请人： Eberhard Schnaibel , Erich Junginger , Lothar Raff
发明人： Eberhard Schnaibel , Erich Junginger , Lothar Raff
IPC分类号： G01N27/409 , F02B39/16 , F02D41/14 , G01N27/26 , G01N27/407 , G01N27/416 , G08B21/00
CPC分类号： F02B39/16 , F02D41/1455 , F02D41/1494 , F02D41/1495 , F02D41/1496 , G01N27/407 , G01N27/4163
摘要： The invention is directed to a method for monitoring the operation of a gas probe, such as a .lambda.-probe for an internal combustion engine. The .lambda.-probe has a probe ceramic (Nernst cell) and a probe heater. The internal resistance (x) of the probe ceramic is measured and a desired value (y) is determined in dependence upon the temperature of the gas to be detected and the heating power of the probe heater. The internal resistance (x) is then compared to the desired value (y) and, when the measured value of the internal resistance (x) exceeds the desired value (y), then a fault signal is generated and/or the fault signal is outputted and/or the fault signal is stored.
摘要翻译： 本发明涉及用于监测气体探针（例如用于内燃机的λ探针）的操作的方法。 λ探针具有探针陶瓷（能斯特细胞）和探针加热器。 测量探针陶瓷的内阻（x），并根据被检测气体的温度和探针加热器的加热功率来确定期望值（y）。 然后将内部电阻（x）与期望值（y）进行比较，并且当内部电阻（x）的测量值超过期望值（y）时，产生故障信号和/或故障信号 输出和/或故障信号被存储。
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公开(公告)号：US5167120A
公开(公告)日：1992-12-01
申请号：US840817
申请日：1992-02-25
申请人： Erich Junginger , Lothar Raff , Eberhard Schnaibel
发明人： Erich Junginger , Lothar Raff , Eberhard Schnaibel
CPC分类号： F02D41/1441 , F02D41/1494
摘要： The invention is directed to a method for the temperature open-loop control and closed-loop control of exhaust gas probes for mixture control systems having several heatable exhaust gas probes. For this purpose, the temperature of one exhaust gas probe is closed-loop controlled in a control loop and the heaters of other exhaust gas probes are open-loop controlled. The closed-loop controlled exhaust gas probe controls the open-loop controlled exhaust gas probes insofar as the actuating variable of the temperature control loop is used as the output value for the temperature open-loop control of the other exhaust gas probes.
摘要翻译： 本发明涉及一种用于具有几个可加热排气探针的混合物控制系统的排气探针的温度开环控制和闭环控制的方法。 为此，一个排气探头的温度在控制回路中闭环控制，其他排气探头的加热器是开环控制的。 只要使用温度控制回路的驱动变量作为其他废气探头的温度开环控制的输出值，闭环控制的排气探头就控制开环控制的排气探头。
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公开(公告)号：US5787867A
公开(公告)日：1998-08-04
申请号：US816377
申请日：1997-03-13
CPC分类号： F02D41/1481 , F02D41/1441 , F02D41/1475 , F02D41/1482 , F02D2041/1422
摘要： The invention is directed to a method for controlling the composition of the air/fuel mixture for an internal combustion engine. In the method, the mean value of the control oscillation is influenced via a change of the delay times tv with which a sign reversal of the actuating variable change is delayed. The dead time of the control is determined from the time-dependent performance of the control actuating variable and is considered for the change of the delay times tv.
摘要翻译： 本发明涉及一种用于控制用于内燃机的空气/燃料混合物的组成的方法。 在该方法中，控制振荡的平均值通过延迟时间tv的变化而受到影响，延迟时间tv与致动变量改变的符号反转延迟。 控制的死区时间根据控制执行变量的时间依赖性能确定，并考虑延迟时间tv的变化。
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7.发明授权Method for adjusting the fuel/air mixture for an internal combustion engine after an overrun phase of operation 失效在运行超载阶段之后调节内燃机的燃料/空气混合物的方法
公开(公告)号：US5438826A
公开(公告)日：1995-08-08
申请号：US144009
申请日：1993-11-01
CPC分类号： F02D41/0295 , F02D41/123 , F02D41/126 , F02D41/1475
摘要： The invention is directed to a method for reducing the exhaust-gas emissions of an internal combustion engine which is equipped with a lambda control and a catalytic converter and for which the metering of fuel can be interrupted in dependence upon operating parameters. The method is characterized in that the engine at first is operated with a rich fuel/air mixture during transition from operation without fuel metering to operation with fuel metering. The oxygen deficiency associated therewith compensates the oxygen excess which is stored in the catalytic converter when the metering of fuel is interrupted. An operating state wherein oxygen is loaded therefore occurs quickly after a fuel cutoff. This operating state also defines an optimum at steady state and this is advantageous especially for the conversion of nitrogen oxide.
摘要翻译： 本发明涉及一种减少内燃机的废气排放的方法，所述内燃机配备有λ控制和催化转化器，根据操作参数可对燃料计量进行中断。 该方法的特征在于，在从没有燃料计量的操作转变到具有燃料计量的操作的过程中，发动机首先具有丰富的燃料/空气混合物。 与此相关的缺氧补偿当燃料计量中断时储存在催化转化器中的氧气过剩。 因此，加载氧的操作状态在燃料切断之后迅速发生。 该操作状态也在稳定状态下定义最佳，这对于氮氧化物的转化是有利的。
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公开(公告)号：US20050029096A1
公开(公告)日：2005-02-10
申请号：US10888295
申请日：2004-07-09
CPC分类号： H01H1/605 , Y10T307/924
摘要： A method and an electronic circuit for regenerating an electrical contact are provided in order to remedy the problem of electrical contacts becoming highly resistive over time. Electrical contacts become highly resistive over time, particularly when the contacts are thermally highly stressed and/or exposed to corrosive gases. To remedy this undesired effect and to reestablish the low resistance of the contacts, an electrical regenerating signal is applied to these contacts.
摘要翻译： 提供一种用于再生电触头的方法和电子电路，以便补救电触头随时间变得高度阻力的问题。 电触点随时间变得高度阻力，特别是当触点受到高度的高应力和/或暴露于腐蚀性气体时。 为了补救这种不良影响并重新建立触点的低电阻，电再生信号被施加到这些触点。
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9.发明授权
公开(公告)号：US5291417A
公开(公告)日：1994-03-01
申请号：US684896
申请日：1991-04-22
IPC分类号： G01N27/409 , F02D41/14 , G01N27/406 , G06F15/20 , G01R27/00
CPC分类号： G01N27/4065 , F02D41/1476
摘要： The internal resistance of a lambda probe is determined by: the application of a clocked direct-current counter voltage to the probe via a series resistor; the measurement of the output voltages with the counter voltage connected and disconnected; and, the calculation of the internal resistance from the measured values and known resistance values.Apart from the components of a conventional arrangement, this method requires only a series resistor and a switch for implementation. Measurement can be carried out at short time intervals without excessively high direct-current voltage loading which affects the service life.The internal resistance measured is compared with a desired resistance and the control deviation determined in this way is used to determine the duty factor for probe heating clocked with fixed frequency.
摘要翻译： PCT No.PCT / DE89 / 00638 Sec。 371日期1991年04月22日 102（e）日期1991年4月22日PCT提交1989年10月6日PCT公布。 出版物WO90 / 04778 日期为1990年5月3日.λ探针的内阻由下式确定：通过串联电阻将时钟脉冲的直流电压施加到探头; 输出电压的测量与反电压连接断开; 以及根据测量值和已知电阻值计算内部电阻。 除了常规布置的部件之外，该方法仅需要串联电阻器和用于实现的开关。 测量可以在短时间间隔内进行，而不会导致过高的直流电压负载，从而影响使用寿命。 将所测量的内电阻与期望的电阻进行比较，以这种方式确定的控制偏差用于确定以固定频率计时的探头加热的占空比。
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公开(公告)号：US5224345A
公开(公告)日：1993-07-06
申请号：US679050
申请日：1991-05-09
IPC分类号： F02D41/14
CPC分类号： F02D41/1441 , F02D41/1456
摘要： An arrangement for lambda control operates on an internal combustion engine (11) comprising a catalytic converter (12) and a lambda probe (13.v) mounted in front of the catalytic converter and a lambda probe (13.h) mounted behind the catalytic converter. The arrangement integrates by means of an integration means (15) the difference between the actual lambda value measured by the rear probe and the lambda desired value to which controlling is to be effected. The integration value is used as control desired value for a means (16) for lambda control. This arrangement and the associated method make it possible to control to the actually wanted lambda desired value even if the front lambda probe carries out incorrect measurements, for example because of hydrocarbons in the exhaust gas in front of the catalytic converter or, in the case of continuous-action control, faulty linearization of the probe characteristic.
摘要翻译： PCT No.PCT / DE89 / 00164 Sec。 371日期1991年5月9日 102（e）日期1991年5月9日PCT 1989年3月17日PCT公布。 出版物WO90 / 05240 日期为1990年5月17日。用于λ控制的布置在内燃机（11）上操作，所述内燃机（11）包括催化转化器（12）和安装在催化转化器前面的λ探针（13.v）和λ探针（13。 h）安装在催化转化器后面。 该装置通过积分装置（15）集成由后探针测量的实际λ值与要进行控制的λ期望值之间的差值。 积分值被用作用于λ控制的装置（16）的控制期望值。 即使前面的λ探针执行不正确的测量，例如由于催化转化器前面的废气中的碳氢化合物，或者在 连续动作控制，探针特性线性化故障。
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