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    • 2. 发明授权
    • Method and apparatus for setting a tank venting valve
    • 用于设置油罐阀的方法和装置
    • US5072712A
    • 1991-12-17
    • US455427
    • 1989-12-20
    • Ulrich SteinbrennerGunther PlappWolfgang Wagner
    • Ulrich SteinbrennerGunther PlappWolfgang Wagner
    • F02D41/14F02D41/00F02D41/02F02M25/08
    • F02D41/0042F02D41/0032
    • A method is disclosed for obtaining output values for actuating a tank venting valve connected to the intake pipe of an internal combustion engine. A control factor is supplied by a lambda controller computing step and modifies a loading factor until a regenerating fuel quantity leading to no deviation from the lambda desired value is supplied via the tank venting valve. The controlled loading factor modifies precontrol values for the regenerating fuel quantity which is supplied in an operating condition. The method takes into consideration the pressure conditions at the tank venting valve. This makes it possible to place the opening of the tank venting pipe into the intake pipe of an internal combustion engine behind the throttle flap where there is a great negative pressure, which, however, can fluctuate within wide limits. The method takes into consideration these fluctuations within a precontrolled system with superposed control which makes it possible to operate with high regenerating gas flows and, nevertheless, reliable operation. An apparatus for carrying out the method of the invention is also disclosed.
    • PCT No.PCT / DE89 / 00137 Sec。 371日期1989年12月20日第 102(e)日期1989年12月20日PCT 1989年3月4日PCT公布。 出版物WO89 / 10472 日期为1989年11月2日。公开了一种用于获得用于致动连接到内燃机的进气管的罐排气阀的输出值的方法。 通过λ控制器计算步骤提供控制因子,并修改负载因子,直到通过罐排放阀提供导致不与λ期望值偏离的再生燃料量。 受控加载系数修改在运行条件下提供的再生燃料量的预控值。 该方法考虑了储罐排气阀的压力条件。 这使得能够将油箱排气管的开口放置在节气门挡板后面的内燃机的进气管中,在那里存在很大的负压,然而这可能在宽范围内波动。 该方法考虑了具有叠加控制的预控制系统内的这些波动,这使得可以以高再生气流运行,并且仍然可靠运行。 还公开了一种用于实施本发明的方法的装置。
    • 7. 发明授权
    • Device for air flow rate measurement in the air intake tube of an
internal combustion engine
    • 用于内燃机进气管中的空气流量测量装置
    • US4344322A
    • 1982-08-17
    • US156956
    • 1980-06-06
    • Gunther Plapp
    • Gunther Plapp
    • F02D41/18G01F1/68G01F1/69G01F1/698
    • G01F1/698
    • A device for air flow rate measurement in the air intake tube of an internal combustion engine which has at least two temperature-dependent resistors in different branches of a bridge circuit having closed-loop electric current control, and which is characterized in that the temperature-dependent resistors are embodied as hot wires, that a temperature above the aspirated air temperature is selected for both hot wires, and that the difference of the hot wire temperatures is held to a constant value. The purpose of the device is to provide air flow rate measurement which is as error-free as possible, even when the aspirated air temperature is fluctuating rapidly. An identically embodied suspension and fastening of the individual hot wires is given as an example for the spatial disposition of the individual hot wires in the air intake tube.
    • 一种内燃机的进气管中的空气流量测量装置,在具有闭环电流控制的桥式电路的不同分支中具有至少两个温度依赖性电阻器,其特征在于, 相关的电阻器被实施为热丝,对于两个热丝,选择高于吸气温度的温度,并且将热丝温度的差值保持在恒定值。 该设备的目的是提供尽可能无误差的空气流量测量,即使当吸入的空气温度迅速波动时。 给出各个热丝的相同实施例的悬挂和紧固作为用于进气管中的各个热丝的空间布置的示例。
    • 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。