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    • 5. 发明授权
    • Malfunction test procedure and apparatus for idling control
    • 故障测试程序和怠速控制装置
    • US5031595A
    • 1991-07-16
    • US466308
    • 1990-03-20
    • Klaus HeckManfred MezgerGunther PlappRudiger JautelatStefan Huwig
    • Klaus HeckManfred MezgerGunther PlappRudiger JautelatStefan Huwig
    • F02D11/10F02D31/00F02D41/22F02D45/00
    • F02D41/22F02D11/107F02D31/004F02D41/221Y02T10/40
    • In a method for the malfunction testing of an idling control arrangement for an internal combustion engine, the closing function of the idling contact is checked. As soon as it is established that the contact should really be closed but that this is not the case, it is certain that there is either an interruption in the idling contact circuit or a servomotor fault. In order to be able to distinguish which of these faults is present, a test movement sequence is carried out in which the servomotor of the arrangement is activated and a check is made whether the throttle flap angle changes. If this is not the case, the servomotor is defective; otherwise, an interruption in the idling contact circuit is present. Using this method, it is for the first time possible to detect interruption and servomotor faults. Until now, it was only possible to detect short-circuit faults. Such short-circuit faults can also be detected using a method according to the invention, and in particular with greater reliability than so far, since a smaller angle is used in the test condition than unit now.
    • PCT No.PCT / DE89 / 00429 Sec。 371 1990年3月20日第 102(e)1990年3月20日PCT PCT 1989年6月29日PCT公布。 第WO90 / 01114号公报 日期:1990年2月8日。在内燃机的空转控制装置的故障检测方法中,检查怠速接点的关闭功能。 一旦确定联络人应该真正关闭,但情况并非如此,确定怠速接触电路有中断或伺服电机故障。 为了能够区分这些故障中的哪一个,执行测试运动顺序,其中该装置的伺服电动机被激活并且检查节气门瓣角度是否改变。 如果不是这样,伺服电机有缺陷; 否则,存在怠速接触电路的中断。 使用这种方法,首次可能检测到中断和伺服电机故障。 到目前为止,只能检测短路故障。 这样的短路故障也可以使用根据本发明的方法来检测,特别是比迄今为止更高的可靠性,因为现在在测试条件下使用较小的角度。
    • 7. 发明授权
    • Method for detecting an extreme value position of a movable part
    • 用于检测可动部件的极值位置的方法
    • US4722313A
    • 1988-02-02
    • US809015
    • 1985-12-13
    • Rolf KohlerGunther Plapp
    • Rolf KohlerGunther Plapp
    • F02D35/00F02B1/04F02D41/08F02D41/24F02D45/00G01B21/00F02B3/00
    • F02D41/28F02D41/08F02B1/04F02D2250/16
    • A method is disclosed for detecting an extreme value position of a movable part by means of a position detecting sensor. The method is especially suitable for detecting the idle position of the throttle flap of an internal combustion engine with the aid of a potentiometer. In this method, a stored value (extreme value) corresponding to the extreme position is corrected upon the detection of deviating measured values, provided that the deviating measured values lie within a correction range around the extreme value. The range of movement of the movable part has to lie within the range coverable by the position sensor. After a predetermined number of identical measured values are sensed in the correction range during an operating cycle, such a measured value is stored in memory as the new extreme value. For dynamic adaptation, this next extreme value is modified cyclically, preferably prior to each operating cycle, by a predetermined value away from the outermost position. While detecting the extreme position with a high accuracy, the method of the invention has a very small hysteresis, with the full function capability being restored after a short period, even under irregular operating conditions.
    • 公开了一种通过位置检测传感器检测可动部件的极值位置的方法。 该方法特别适用于借助于电位计来检测内燃机的节流阀的怠速位置。 在这种方法中,如果偏差的测量值在极值附近的校正范围内,则在检测偏差的测量值时,对与极限位置对应的存储值(极值)进行校正。 可移动部件的移动范围必须位于由位置传感器覆盖的范围内。 在操作周期内在校正范围内检测到预定数量的相同测量值之后,将这样的测量值作为新的极值存储在存储器中。 对于动态适应,该下一个极值值优选地循环地修改,优选地在每个操作周期之前以远离最外位置的预定值进行修改。 在高精度检测极限位置的情况下,本发明的方法具有非常小的滞后,即使在不规则的工作条件下,也能在短时间内恢复全功能。
    • 8. 发明授权
    • Method and arrangement for lambda control
    • LAMBDA控制的方法和布置
    • US5224345A
    • 1993-07-06
    • US679050
    • 1991-05-09
    • Eberhard SchnaibelLothar RaffGunther PlappCornelius PeterMichael Westerdorf
    • Eberhard SchnaibelLothar RaffGunther PlappCornelius PeterMichael Westerdorf
    • F02D41/14
    • F02D41/1441F02D41/1456
    • 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.
    • 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。
    • 9. 发明授权
    • Control process and apparatus, in particular lambda control
    • 控制过程和装置,特别是林肯控制
    • US5079691A
    • 1992-01-07
    • US459735
    • 1990-01-16
    • Klaus HeckGunther PlappJurgen Kurle
    • Klaus HeckGunther PlappJurgen Kurle
    • F02D41/14
    • F02D41/2454F02D41/2432F02D41/2441
    • A method for the adaptation of a precontrolled value for a feedback control is based on the realization that, whenever the operating conditions coincide with the calibration conditions for the initial determining of precontrolled values, no control-manipulated variable deviations may occur in all the operating ranges, and that accordingly deviations which are nevertheless observed are a sign that the calibration conditions no longer exist. This may be caused by aging effects or by uncompensated disturbances. The method establishes the differences in control-manipulated variable deviations over different classes of an influencing variable. For each influencing variable class, a correction value is then determined such that, by means of the correction value, the error previously observed for the respective range is compensated during operation of the controlled system. The method makes possible an accurate adaptation range by range in an off-line method and is therefore suitable in particular for the precontrolling feedback control of the lambda value of an internal combustion engine. An apparatus for carrying out the method is also disclosed.
    • PCT No.PCT / DE89 / 00291 Sec。 371日期1990年1月16日 102(e)日期1990年1月16日PCT提交1989年5月10日PCT公布。 出版物WO89 / 11032 日期为1989年11月16日。用于反馈控制的预控制值的适应方法基于以下认识:每当操作条件与用于初始确定预控制值的校准条件一致时,无控制操纵的可变偏差 可能发生在所有操作范围内,因此,仍然观察到的偏差是校准条件不再存在的迹象。 这可能是由老化的影响或无补偿的干扰引起的。 该方法在不同类别的影响变量中建立了控制操纵变量偏差的差异。 对于每个影响变量类,然后确定校正值,使得通过校正值,在受控系统的操作期间补偿先前在各个范围内观察到的误差。 该方法使得在离线方法中可以通过范围的精确适应范围成为可能,因此特别适用于内燃机的λ值的预控制反馈控制。 还公开了一种用于执行该方法的装置。
    • 10. 发明授权
    • Control system for the air/fuel ratio of an internal combustion engine
    • 内燃机空燃比控制系统
    • US5036819A
    • 1991-08-06
    • US477976
    • 1990-04-30
    • Cornelius PeterGunther PlappLothar RaffEberhard SchnaibelMichael Westerdorf
    • Cornelius PeterGunther PlappLothar RaffEberhard SchnaibelMichael Westerdorf
    • F02D41/14F02D45/00
    • F02D41/1477F02D2041/1409F02D41/1441
    • 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.
    • 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。