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1. 发明授权

US5224345A Method and arrangement for lambda control 失效
标题翻译： LAMBDA控制的方法和布置
公开(公告)号：US5224345A
公开(公告)日：1993-07-06
申请号：US679050
申请日：1991-05-09
申请人： Eberhard Schnaibel , Lothar Raff , Gunther Plapp , Cornelius Peter , Michael Westerdorf
发明人： Eberhard Schnaibel , Lothar Raff , Gunther Plapp , Cornelius Peter , Michael Westerdorf
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。

2. 发明授权

US5036819A Control system for the air/fuel ratio of an internal combustion engine 失效
标题翻译：内燃机空燃比控制系统
公开(公告)号：US5036819A
公开(公告)日：1991-08-06
申请号：US477976
申请日：1990-04-30
申请人： Cornelius Peter , Gunther Plapp , Lothar Raff , Eberhard Schnaibel , Michael Westerdorf
发明人： Cornelius Peter , Gunther Plapp , Lothar Raff , Eberhard Schnaibel , Michael Westerdorf
IPC分类号： F02D41/14 , F02D45/00
CPC分类号： F02D41/1477 , F02D2041/1409 , F02D41/1441
摘要： A control system for controlling the air/fuel ratio in an internal combustion engine 10, in which an oxygen probe (lambda probe) 13 is arranged in the exhaust gas of the internal combustion engine 10, has a control device 12 for continuous control. The actual value of the air ratio lambda is determined via a measured probe output voltage in conjunction with an at least approximately predetermined probe-characteristic relationship 16 between the value of the probe output voltage and the value of the air ratio lambda associated therewith. After forming the difference of desired value and actual value of the air ratio lambda, the air/fuel ratio is controlled on the basis of this difference. Such a control system is used primarily in order to reduce the total emission of the main pollutant components of the exhaust gas of an internal combustion engine. In particular in the case of an internal combustion engine 10 with catalytic converter arranged in the exhaust gas, a maintenance of the air ratio lambda as accurate as possible necessary for optimum efficiency of the catalytic converter (lambda=1) is assured.
摘要翻译： PCT No.PCT / DE88 / 00659 Sec。 371日期1990年04月30日 102（e）日期1990年4月30日PCT提交1988年10月26日PCT公布。 WO 89/4424 PCT公开号日本1989年5月18日。一种用于控制内燃机10中的空燃比的控制系统，其中在内燃机10的排气中配置氧探头（λ探针）13，具有控制装置 12连续控制。空气比λ的实际值通过测量的探头输出电压以及探针输出电压的值与与之相关联的空气比λ的值之间的至少近似预定的探针特性关系16来确定。在形成空气比λ的期望值和实际值的差之后，基于该差来控制空燃比。这种控制系统主要用于减少内燃机废气的主要污染物成分的总排放量。特别是在具有设置在废气中的催化转化器的内燃机10的情况下，确保尽可能准确地维持催化转化器（λ= 1）的最佳效率所需的空气比λ。

3. 发明授权

US5203165A Method for the lambda control of an internal combustion engine having a catalyzer 失效
标题翻译：具有催化剂的内燃机发动机的控制方法
公开(公告)号：US5203165A
公开(公告)日：1993-04-20
申请号：US738360
申请日：1991-07-31
申请人： Ernst Wild , Gunther Plapp , Lothar Raff , Michael Westerdorf , Eberhard Schnaibel
发明人： Ernst Wild , Gunther Plapp , Lothar Raff , Michael Westerdorf , Eberhard Schnaibel
IPC分类号： F01N9/00 , F01N11/00 , F02D41/14
CPC分类号： F01N11/007 , F02D41/1441 , F02D41/1487 , F01N2550/02 , F02D41/1456 , Y02T10/47
摘要： The invention is directed to a method for lambda control of an internal combustion engine having a catalyzer and a measuring probe arrangement in front of the catalyzer for emitting a measuring signal and a testing probe arrangement behind the catalyzer for emitting a test signal. The method includes the steps of: forming a ratio between the measuring signal and the test signal at pregiven operating conditions; evaluating said ratio as an estimating quantity for the conversion rate of the catalyzer; and, modifying output values of control parameters in a pregiven controlled manner on the basis of the instantaneous values of said ratio, said output values being applicable for controlling an internal combustion engine having a new catalyzer. This method affords the advantage that it evaluates a catalyzer with the aid of the above-mentioned ratio value and controllably modifies values of control parameters in dependence upon the evaluation ratio. This leads to an especially stable control with low toxic gas discharge.
摘要翻译：本发明涉及一种用于在催化剂前面具有催化剂和测量探针装置的用于发射测量信号的内燃机的λ控制方法和用于发射测试信号的催化剂后面的测试探针装置。该方法包括以下步骤：在预定的操作条件下形成测量信号与测试信号之间的比率; 将所述比例评估为所述催化剂的转化率的估计量; 并且基于所述比率的瞬时值，以预定的控制方式修改控制参数的输出值，所述输出值适用于控制具有新催化剂的内燃机。该方法具有借助于上述比值来评价催化剂的优点，并根据评价比可控制地改变控制参数的值。这导致了具有低毒气体排放的特别稳定的控制。

4. 发明授权

US5291417A Method and arrangement for determining the internal resistance of a lambda probe and for the closed-loop heating control with the aid of the internal resistance 失效
标题翻译：用于确定λ探针的内阻和借助于内阻的闭环加热控制的方法和装置
公开(公告)号：US5291417A
公开(公告)日：1994-03-01
申请号：US684896
申请日：1991-04-22
申请人： Eberhard Schnaibel , Lothar Raff , Michael Westerdorf , Manfred Homeyer
发明人： Eberhard Schnaibel , Lothar Raff , Michael Westerdorf , Manfred Homeyer
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。

5. 发明授权

US5140535A Process, use of the same and apparatus for lambda value detection 失效
标题翻译：过程，使用它们和设备用于木材价值检测
公开(公告)号：US5140535A
公开(公告)日：1992-08-18
申请号：US466264
申请日：1990-02-20
申请人： Lothar Raff , Eberhard Schnaibel , Michael Westerdorf
发明人： Lothar Raff , Eberhard Schnaibel , Michael Westerdorf
IPC分类号： G01N27/409 , F02D41/14 , G01N27/406
CPC分类号： G01N27/4065 , F02D41/1496 , F02D41/1456
摘要： In a method for lambda value detection, the voltages of the loaded and the unloaded lambda sensor are detected and the internal resistance of the sensor is calculated from these values with the aid of the known value of the load resistance. The value of the internal resistance and the respective value of the voltage of the sensor in the unloaded state serve as input variables for a characteristic field, in which lambda values dependent on values of the internal resistance and of the voltage of the sensor in the unloaded state are stored. The method of the invention affords the advantage that lambda values can be measured very accurately even in the strongly temperature-dependent rich branch of a sensor, for example, of a sensor of the Nernst type. The values thus detected can be indicated by a measuring device or they can be used for exhaust gas control, for example in warming-up or at full load.
摘要翻译： PCT No.PCT / DE88 / 00504 Sec。 371日期1990年2月20日 102（e）1990年2月20日日期PCT提交1988年8月18日PCT公布。出版物WO89 / 01623 日期：1989年2月23日。在λ值检测的方法中，检测负载和未加载的λ传感器的电压，并借助已知的负载电阻值从这些值计算传感器的内部电阻。内部电阻的值和传感器在无负载状态下的电压的相应值用作特征场的输入变量，其中取决于内部电阻值和传感器在未加载的电压的值的λ值状态被存储。本发明的方法提供的优点是，即使在传感器（例如，恩斯特型）的传感器的强烈依赖于温度的丰富支路中也可以非常精确地测量λ值。这样检测的值可以由测量装置指示，或者它们可以用于排气控制，例如在预热或满载时。

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