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    • 44. 发明授权
    • Method and arrangement for detecting and documenting damage to a
catalytic converter
    • 用于检测和记录催化转化器损坏的方法和装置
    • US5763771A
    • 1998-06-09
    • US731740
    • 1996-10-18
    • Karl OttHelmut DenzErnst Wild
    • Karl OttHelmut DenzErnst Wild
    • B60K15/077F01N3/20F01N9/00F01N11/00F02D45/00G01M15/00
    • F01N3/20F01N11/00F01N9/00F01N2550/02Y02T10/47
    • The invention is directed to a method for detecting and documenting damage to a catalytic converter in a motor vehicle having a fuel tank and an internal combustion engine wherein combustion misfires can occur when the level of fuel in the tank drops below a critical level. The method includes: detecting the level of fuel in the tank utilizing a fill-level sensor device; utilizing a circuit arrangement to determine when the level in the tank reaches the critical level and switching on a warning lamp to indicate that the critical level has been reached; storing a value corresponding to the critical level and the operating state of the warning lamp in a memory as a first set of data; detecting misfires of the engine and storing information as to the misfires in the memory as a second set of data; and, logically combining the first and second sets of data when the misfires are present at the same time as the critical fill level so that a determination can be made in the context of a later read out of the logically coupled data as to whether the misfires are associated with a level of the fuel corresponding to the critical level.
    • 本发明涉及一种用于检测和记录具有燃料箱和内燃机的机动车辆中的催化转化器的损坏的方法,其中当燃料箱中的燃料水平低于临界水平时,可能发生燃烧失火。 该方法包括:利用填充层传感器装置检测罐中的燃料水平; 利用电路装置来确定罐中的水位何时达到临界水平并打开警告灯以指示达到临界水平; 将与临界水平相对应的值和警告灯的操作状态存储在存储器中作为第一组数据; 检测发动机的失火并将关于存储器中的失火的信息存储为第二组数据; 并且当在与临界填充水平同时存在失火时逻辑地组合第一组数据和第二组数据,使得可以在稍后读取逻辑耦合数据的上下文中确定是否失火 与对应于临界水平的燃料水平相关联。
    • 45. 发明授权
    • Tank-venting system for a motor vehicle as well as a method and an
arrangement for checking the operability thereof
    • 用于机动车辆的排气系统以及用于检查其可操作性的方法和装置
    • US5442551A
    • 1995-08-15
    • US989026
    • 1993-03-11
    • Helmut DenzErnst WildAndreas Blumenstock
    • Helmut DenzErnst WildAndreas Blumenstock
    • B60K15/035F02D35/00F02M25/08G01M3/26F02M33/02G01M15/00
    • G01M3/26B60K15/03504F02M25/0809
    • A method for determining the operability of a tank-venting system on a motor vehicle subjects the signals for the volume flow through the tank-venting valve and the signals for the pressure difference between the tank interior and the ambient to a cross-covariance analysis. The above-mentioned signals are formed by a high pass in advance of forming the cross-covariance function and the maximum or the mean value of the cross-covariance function is formed with respect to the product of the two input variables. A variance measure is formed for the signal of the volume flow through the tank-venting valve and a transfer factor is computed from the variance measure and the mean value or maximum. The tank-venting system is deemed to be operational when the transfer range lies in a pregiven region. An advantage of the method is seen in the independence of the tank-pressure changes which are not caused by volume-flow changes through the tank-venting valve. Here, changes are especially of concern which are caused by the sudden generation of vapor in the tank such as caused by sloshing fuel.
    • PCT No.PCT / DE92 / 00504 Sec。 371日期1993年3月11日 102(e)1993年3月11日PCT PCT 1992年6月19日PCT公布。 出版物WO93 / 01405 日期:1993年1月21日。一种用于确定机动车辆上的排气系统的可操作性的方法,经由通气阀的体积流量的信号和罐内部与环境之间的压力差的信号 进行交叉协方差分析。 上述信号在形成交叉协方差函数之前通过高通形成,并且相对于两个输入变量的乘积形成互协方差函数的最大值或平均值。 对于通过排罐阀的体积流量的信号形成方差测量,并根据方差测量值和平均值或最大值计算转移系数。 当转移范围在预制区域时,通风系统被认为是可操作的。 该方法的优点在于容器压力变化的独立性,这不是通过通气阀的体积流量变化引起的。 在这里,特别关注的是由于罐内蒸气的突然产生,如由燃料挥动引起的。
    • 46. 发明授权
    • Method and arrangement for the open-loop and/or close-loop control of an
operating variable of an internal combustion engine
    • 用于内燃机的操作变量的开环和/或闭环控制的方法和装置
    • US5293852A
    • 1994-03-15
    • US856918
    • 1992-05-18
    • Vera LehnerErnst WildHelmut JanetzkeKlemens Grieser
    • Vera LehnerErnst WildHelmut JanetzkeKlemens Grieser
    • F02D41/14F02D41/24F02D45/00F02D31/00F02D41/16
    • F02D41/2464F02D41/14F02D41/2438
    • A method and an arrangement for open-loop control and/or closed-loop control of an operating variable of an internal combustion engine is suggested with a transfer element fixing the relationship between input and output variables in the form of a characteristic curve or characteristic field such as an electrically actuable actuator, which directly or indirectly influences the operating variable of the engine of a motor vehicle and which fixes the relationship between the driving and operating variable or a variable influencing this operating variable in the form of a characteristic curve or a characteristic field. The transfer element or the characteristic curve or the characteristic field is subjected to changes. By adapting the characteristic curve or the computation instruction representing the characteristic curve or the characteristic field, these are adapted to these changes. This adaptation is performed in such a manner that at least one region of the characteristic curve or of the characteristic field is rotated about a pregiven point which lies outside of the characteristic curve and is specific to the actuator or to the engine. This point is adaptable in the context of a long-term adaptation.
    • PCT No.PCT / DE91 / 00729 Sec。 371日期:1992年5月18日 102(e)日期1992年5月18日PCT提交1991年9月14日PCT公布。 出版物WO92 / 05354 日期1992年4月2日。建议一种用于内燃机的操作变量的开环控制和/或闭环控制的方法和装置,其中转移元件以形式的输入和输出变量之间的关系固定 特征曲线或特征场,例如电动致动器,其直接或间接地影响机动车辆的发动机的操作变量,并且固定驾驶和操作变量之间的关系,或影响该操作变量的变量 的特征曲线或特征场。 转印元件或特性曲线或特征字段会发生变化。 通过适应表征特征曲线或特征场的特征曲线或运算指令,适应这些变化。 这种适应是以特征曲线或特征场的至少一个区域围绕位于特性曲线之外的预制点旋转并且对于致动器或发动机是特定的。 这一点在长期适应的背景下是适应性的。
    • 47. 发明授权
    • Method and arrangement for obtaining an evaluation value for the
performance loss of a catalytic converter
    • 获得催化转化器性能损失评估值的方法和装置
    • US5255515A
    • 1993-10-26
    • US981844
    • 1992-11-25
    • Andreas BlumenstockErnst WildHelmut DenzKlaus Ries-Muller
    • Andreas BlumenstockErnst WildHelmut DenzKlaus Ries-Muller
    • F01N3/20F01N11/00F02B77/08F02D35/00G01M15/04G01N33/00F07N3/20
    • F01N11/007F01N2550/02Y02T10/47
    • The invention is directed to a method for obtaining a value for evaluating the performance loss of a catalytic converter with the aid of a forward signal of a forward gas probe mounted forward of the catalytic converter and a rearward signal of a rearward gas probe mounted rearward of the catalytic converter, the catalytic converter being connected to an internal combustion engine. The method includes the steps of: carrying out the method during the steady-state operation of the engine; multiplying the forward signal and the rearward signal with each other to form a plurality of products; averaging the products over a plurality of oscillations of the forward signal to obtain a mean value; and, utilizing the mean value as a value for evaluating the performance loss of the catalytic converter. This correlation method can be varied in different ways and especially in that the forward-probe signal is correlated without or with phase shift with the rearward-probe signal. A cross-correlation factor or the real or imaginary component of an orthogonal correlation or other correlation values are obtained in dependence upon the nature of the correlation. These correlation values are used for evaluating the performance loss of the catalytic converter. The evaluation of the performance loss of the catalytic converter with the aid of these correlation values is very significantly more reliable than the evaluation with the aid of amplitudes or amplitude mean values of the probe signals.
    • 本发明涉及一种用于通过安装在催化转化器前方的正向气体探针的前向信号和后方气体探针的向后信号获得用于评估催化转化器的性能损失的值的方法, 催化转化器,催化转化器连接到内燃机。 该方法包括以下步骤:在发动机的稳态运行期间执行该方法; 将前向信号和后向信号彼此相乘以形成多个乘积; 在正向信号的多个振荡中对产品进行平均以获得平均值; 并利用平均值作为评价催化转化器的性能损失的值。 该相关方法可以以不同的方式变化,特别是前向探针信号与后向探测信号无相关或相移相关。 取决于相关性质,获得正交相关或其他相关值的互相关因子或实分量或虚分量。 这些相关值用于评估催化转化器的性能损失。 借助于这些相关值对催化转化器的性能损失的评估与借助于探测信号的幅度或振幅平均值的评估相比非常显着更可靠。
    • 48. 发明授权
    • Method and arrangement for checking the operability of an electric
heater in a motor vehicle
    • 检查电动汽车电加热器运行性能的方法和装置
    • US5218946A
    • 1993-06-15
    • US951856
    • 1992-09-28
    • Ernst WildManfred MezgerKlaus Ries-Muller
    • Ernst WildManfred MezgerKlaus Ries-Muller
    • F02D41/14F02D45/00
    • F02D41/1494
    • The invention relates to a method and an arrangement for checking the operability of an electric heater in motor vehicles and especially the heater of an oxygen probe which is mounted in the exhaust gas channel of an internal combustion engine. It is necessary to determine the temperature-dependent electrical resistance and the temperature of the oxygen probe heater for a precise evaluation of the operational state of the oxygen probe heater. The basic principle of the invention is based upon the consideration that the measurement of the electrical resistance of the oxygen probe heater is then carried out when the oxygen probe heater has cooled down to the ambient temperature. Whether this cool down has taken place can be determined in various ways in accordance with the invention, for example, from the cool down of the engine block or by a comparison of the engine block temperature to the intake-air temperature. The operating state of the oxygen probe heater so determined is displayed to the driver by the activation of a corresponding control device and/or, if required, read into a fault memory.
    • 本发明涉及一种用于检查机动车辆中的电加热器的可操作性的方法和装置,特别是安装在内燃机的排气通道中的氧探头的加热器。 需要确定氧气探头加热器的温度依赖性电阻和温度,以精确评估氧探头加热器的工作状态。 本发明的基本原理基于以下考虑:当氧探针加热器已经冷却到环境温度时,氧探头加热器的电阻的测量被执行。 可以根据本发明的各种方式来确定是否发生这种冷却,例如,从发动机缸体的冷却或通过发动机缸体温度与进气温度的比较来确定。 如此确定的氧探头加热器的操作状态通过激活相应的控制装置和/或如果需要读入故障存储器而显示给驾驶员。
    • 49. 发明授权
    • Method for the lambda control of an internal combustion engine having a
catalyzer
    • 具有催化剂的内燃机发动机的控制方法
    • US5203165A
    • 1993-04-20
    • US738360
    • 1991-07-31
    • Ernst WildGunther PlappLothar RaffMichael WesterdorfEberhard Schnaibel
    • Ernst WildGunther PlappLothar RaffMichael WesterdorfEberhard Schnaibel
    • F01N9/00F01N11/00F02D41/14
    • F01N11/007F02D41/1441F02D41/1487F01N2550/02F02D41/1456Y02T10/47
    • 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.
    • 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。
    • 50. 发明授权
    • Method for protecting a catalyzer
    • 保护催化剂的方法
    • US5074270A
    • 1991-12-24
    • US644011
    • 1991-01-22
    • Helmut DenzErnst WildRudi Mayer
    • Helmut DenzErnst WildRudi Mayer
    • F02D41/22
    • F02D41/221F01N2430/06Y02T10/40
    • The invention is directed to a method for protecting a catalyzer against overheating. The method includes the steps of checking whether an injection valve no longer correctly closes by means of a conventional diagnostic process. If the condition is present that an injection valve no longer correctly closes, the air/fuel mixture for all cylinders is enriched and an overrun switchoff is inhibited. The method leads to the condition that in all load ranges, the oxygen quantity reaching the catalyzer is limited so that no damaging afterburning can take place. In this way, the catalyzer is protected against overheating and the affected vehicle is not disabled.
    • 本发明涉及一种用于保护催化剂免于过热的方法。 该方法包括以下步骤:通过常规诊断过程检查喷射阀是否不再正确关闭。 如果存在注入阀不再正确关闭的情况,则所有气缸的空气/燃料混合物都会被浓缩,并且可以抑制超限切换。 该方法导致在所有负载范围内到达催化剂的氧量受到限制,从而不会发生有害的后燃烧。 以这种方式,催化剂被防止过热,并且受影响的车辆不被禁用。