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    • 1. 发明授权
    • Method of checking the operability of a tank-venting system
    • 检查排气系统的可操作性的方法
    • US6105557A
    • 2000-08-22
    • US358478
    • 1999-07-21
    • Eberhard SchnaibelThorsten FritzLutz Reuschenbach
    • Eberhard SchnaibelThorsten FritzLutz Reuschenbach
    • G01M3/26F02M25/08F02M33/02
    • F02M25/0818
    • The invention is directed to a method for checking the operability of a tank-venting system. The tank-venting system includes a tank, an adsorption filter having a tank-venting line, a connecting line for connecting the adsorption filter to the tank, a tank-venting valve and a valve line connecting the adsorption filter to the tank-venting valve. A pressure source is provided for introducing a pressure into the tank-venting system, an operating characteristic variable of the pressure source is detected only over a pregiven time interval (.DELTA.t.sub.m) when introducing the pressure to obtain a time-dependent trace of the operating characteristic variable. The time-dependent trace is extrapolated and a conclusion is drawn as to the presence of a leak therefrom.
    • 本发明涉及一种用于检查罐排气系统的可操作性的方法。 排气系统包括一个罐,一个吸气过滤器,一个排气管,一个用于将吸附过滤器连接到油箱的连接管,一个油箱排放阀和一个将吸附过滤器连接到油箱排放阀 。 提供压力源以将压力引入到罐排放系统中,当引入压力以获得操作的时间依赖性痕迹时,压力源的操作特性变量仅在预制时间间隔(DELTA tm)上被检测 特征变量。 时间依赖的曲线被外推,并且得出关于其中存在泄漏的结论。
    • 3. 发明授权
    • Method for adjusted air and fuel quantities for a multi-cylinder
internal combustion engine
    • 多缸内燃机调节空气和燃料量的方法
    • US5095874A
    • 1992-03-17
    • US679044
    • 1991-05-13
    • Eberhard SchnaibelErich SchneiderMartin KlenkWinfried MoserChristian KlinkeLutz ReuschenbachKlaus Benninger
    • Eberhard SchnaibelErich SchneiderMartin KlenkWinfried MoserChristian KlinkeLutz ReuschenbachKlaus Benninger
    • F02D43/00F02D9/02F02D41/04
    • F02D41/045F02D43/00
    • In a method for adjusting air and fuel masses for a multi-cylinder internal combustion engine with individual injection for each cylinder, the fuel mass for each injection operation is calculated taking into account the probable intake-pipe pressure during the opening time of the inlet valve. After a change of the accelerator pedal, the throttle flap is only adjusted when the fuel masses decisive for the new throttle-flap position have been calculated and substantially ejected. By virtue of the fact that fuel masses to be injected are not calculated taking into account the current air mass flow but taking into account the intake-pipe pressure, which is decisive in the induction operation, and that a change in the actuation of the throttle flap, which would lead to a change in the intake-pipe pressure not taken into account in the calculation of the injection quantity, is only permitted again after a recalculation, an optimum ratio between fuel mass and air mass per charge for the purpose of obtaining a specified value for the air/fuel ratio is always obtained, even in non-steady-state conditions of an internal combustion engine. Apart from the future intake-pipe pressure, account is also taken in the calculation of the fuel mass to be ejected of how much fuel passes into a wall film or is released from the latter.
    • PCT No.PCT / DE90 / 00560 Sec。 371日期1991年5月13日 102(e)日期1991年5月13日PCT提交1990年7月24日PCT公布。 WO91 / 04401 PCT出版物 日期:1991年4月4日。在用于为每个气缸单独喷射的多气缸内燃机的空气和燃料质量调节方法中,每次喷射操作的燃料质量被计算在考虑到可能的进气管压力 入口阀的打开时间。 在加速踏板改变之后,仅当已经计算出并且基本上弹出用于新的油门襟翼位置的燃料质量决定性时才调整节气门瓣。 由于考虑到当前的空气质量流量而是考虑到在感应操作中决定性的进气管压力而不计算要喷射的燃料块,并且油门的致动变化 在计算喷射量时,不会考虑到进气管压力的变化,在重新计算后,再次计算出燃料质量与每次充气的空气质量之间的最佳比例,才能获得 即使在内燃机的非稳态条件下,总是能够获得空燃比的规定值。 除了未来的进气管压力之外,还考虑了要排出多少燃料进入壁膜或从后者释放的燃料质量的计算。
    • 6. 发明授权
    • Control system and method for metering the fuel in an internal
combustion engine
    • 用于计量内燃机燃料的控制系统和方法
    • US5553593A
    • 1996-09-10
    • US488355
    • 1995-06-07
    • Eberhard SchnaibelRolf-Hermann MergenthalerLutz ReuschenbachHans VeilEduard Weiss
    • Eberhard SchnaibelRolf-Hermann MergenthalerLutz ReuschenbachHans VeilEduard Weiss
    • F02D45/00F02D41/04F02D41/14F02D41/00
    • F02D41/047F02D41/148F02D41/1456
    • A control system is described for metering the fuel in an internal combustion engine. On the basis of the operating state of the internal combustion engine and a mixture correction signal for correcting the deviation of the air/fuel ratio from a desired value, a basic injection quantity signal is generated. A transition compensation signal is also generated while taking into account an adaptive correction factor. The adaptive correction factor is generated by comparing the mixture correction signal with a reference. The transition compensation signal is logically combined with the basic injection quantity signal to form a signal indicative of the quantity of fuel to be injected. In a second exemplary embodiment, the adaptive correction factor is determined by comparing the output signal of an exhaust gas sensor with a reference. In a third exemplary embodiment, both the mixture correction signal and the output signal of the exhaust gas sensor are included in the determination of the transition compensation signal.
    • 描述了用于计量内燃机中的燃料的控制系统。 基于内燃机的运行状态和用于校正空燃比与期望值的偏差的混合校正信号,生成基本喷射量信号。 在考虑了自适应校正因子的同时也产生过渡补偿信号。 通过将混合校正信号与参考值进行比较来产生自适应校正因子。 过渡补偿信号与基本喷射量信号逻辑地组合以形成指示要喷射的燃料量的信号。 在第二示例性实施例中,通过将排气传感器的输出信号与参考值进行比较来确定自适应校正因子。 在第三示例性实施例中,排气传感器的混合校正信号和输出信号都包括在转移补偿信号的确定中。
    • 8. 发明授权
    • Method and arrangement for determining a parameter of a lambda controller
    • 用于确定λ控制器的参数的方法和装置
    • US5291873A
    • 1994-03-08
    • US895550
    • 1992-06-08
    • Klaus HirschmannLothar RaffLutz ReuschenbachEberhard Schnaibel
    • Klaus HirschmannLothar RaffLutz ReuschenbachEberhard Schnaibel
    • F02D41/14F02D45/00
    • F02D41/1486F02D41/1483
    • The invention is directed to a method for determining the particular current value of at least one control parameter for a lambda control of an internal combustion engine which provides a shift to make the fuel mixture lean or a shift to make the fuel mixture rich in dependence upon the operating state of the controlled engine. The method includes the steps of: determining a base value for the control parameter in dependence upon the current value of at least one pregiven operating variable as the current value applies for a control with a minimal discharge of toxic gas during steady-state operation of the engine; and, modifying the base value with a transition variable having a value decaying as a function of time when changes in the operating state of the engine occur. The method of the invention affords the advantage that the control parameter does not have a value which was applied for a minimum discharge of toxic gas for a typical operation sequence at steady-state or transient operation; instead, for steady-state and transient operations, optimized values are available. In this way, a discharge of exhaust gas is obtained which is lower compared to possibilities which have existed up until now.
    • 本发明涉及一种用于确定内燃机的λ控制的至少一个控制参数的特定电流值的方法,所述控制参数提供了使燃料混合物偏离或使燃料混合物富集的变化 受控发动机的运行状态。 该方法包括以下步骤:根据至少一个预定操作变量的当前值来确定控制参数的基值,因为当前值适用于在稳态运行期间具有最小排放有毒气体的控制 发动机; 以及当发生发动机的运行状态发生变化时,用具有衰减作为时间的函数的值的转换变量来修改基值。 本发明的方法提供的优点是,在稳态或瞬态操作中,控制参数不具有用于典型操作顺序的有毒气体的最小排放的值; 相反,对于稳态和瞬态操作,可以使用优化值。 以这种方式,获得与迄今为止存在的可能性相比较低的废气排放。