Method for determining the load signal of an internal combustion engine
having external exhaust-gas recirculation
    1.
    发明授权
    Method for determining the load signal of an internal combustion engine having external exhaust-gas recirculation 失效
    用于确定具有外部排气再循环的内燃机的负载信号的方法

    公开(公告)号:US5889203A

    公开(公告)日:1999-03-30

    申请号:US877798

    申请日:1997-06-18

    CPC分类号: F02D41/0072 Y02T10/47

    摘要: The invention is directed to a method for determining a load signal of an internal combustion engine having an intake pipe with a pressure sensor, external exhaust-gas recirculation (EGR) and an EGR valve. A load signal (tl) is computed in a circuit arrangement which is proportional to the mass inducted per revolution of the engine. The computation is made in dependence upon measured intake-pipe pressure (ps) and the speed (n) of the engine in rpm. On the one hand, the method makes a simple adaptation possible, while, on the other hand, a correct load signal is formed also in steady-state operation and, in this way, reduced exhaust-gas emissions of the engine are made possible. The exhaust-gas mass flow flowing through the EGR valve is determined by converting the exhaust-gas mass flow into an rpm-dependent signal. The rpm-dependent signal is filtered in a filter simulating charging operations in the intake pipe. A corrective signal (scorr) proportional to the exhaust-gas mass inducted by the engine per revolution thereof is determined and this corrective signal (scorr) is subtracted from the load signal (tl) to generate and output the corrected load signal (tlcorr).

    摘要翻译: 本发明涉及一种用于确定具有带有压力传感器,外部排气再循环(EGR)和EGR阀的进气管的内燃机的负载信号的方法。 负载信号(t1)以与发动机每转转动的质量成比例的电路装置来计算。 根据测量的进气管压力(ps)和发动机的转速(n)以rpm计算。 一方面,该方法能够进行简单的适应,另一方面,在稳态运行中也形成正确的负载信号,从而能够减少发动机的废气排放。 流经EGR阀的排气质量流量通过将废气质量流转换成与转速相关的信号来确定。 转速相关信号在模拟进气管中的充气操作的过滤器中进行过滤。 确定与每转一次由发动机引入的排气质量成比例的校正信号(scorr),并从负载信号(t1)中减去该校正信号(scorr),以产生并输出校正的负载信号(tlcorr)。

    Method and device for controlling an internal combustion engine in accordance with operating parameters
    2.
    发明授权
    Method and device for controlling an internal combustion engine in accordance with operating parameters 失效
    根据操作参数控制内燃机的方法和装置

    公开(公告)号:US06272427B1

    公开(公告)日:2001-08-07

    申请号:US09308015

    申请日:1999-07-13

    IPC分类号: F02D4104

    摘要: A method and a device for controlling an internal combustion engine as a function of performance characteristics such as load, engine speed, a corrected value for the intake air temperature being used for the control, the corrected value being obtained from the following formula: TANSK=T1+(TWS−T1)*f where TANSK=corrected value of the intake air temperature, T1=value (TANS) of the intake air temperature remote from the internal combustion engine determined by calculation or measured, TWS=value of the mean temperature of the intake manifold, f=weighting factor ranging from 0 to 1.

    摘要翻译: 作为用于控制的进气温度的校正值作为负载,发动机转速等性能特性的函数的内燃机的控制方法和装置,校正值由下式求得:其中TANSK = 进气温度的修正值,T1 =通过计算或测量确定的远离内燃机的进气温度的值(TANS),TWS =进气歧管的平均温度值,f =加权系数范围从0 到1。

    Device for the recognition of a defective signal
    5.
    发明授权
    Device for the recognition of a defective signal 失效
    用于识别有缺陷信号的装置

    公开(公告)号:US06329807B1

    公开(公告)日:2001-12-11

    申请号:US09242275

    申请日:1999-02-12

    IPC分类号: G01R2365

    摘要: The device for detecting an erroneous signal characteristic of a load on an internal combustion engine that includes first and second differentiators (10,16) with delay devices that generate corresponding output signals (S11, S22) from respective load signals (S1,S2); first and second magnitude-forming devices (14,17) connected with the first and second differentiators respectively to generate respective magnitude signals from the corresponding output signals (S11,S22) first and second low-pass filters (15, 18) connected with the first and second magnitude-forming devices respectively to generate first and second DC voltage signals (MW1,MW2); a subtracting device (19) for subtracting the first and second DC voltage signals (MW1,MW2) from each other to generate a difference signal (D); and comparison devices (20,23) for generating a first error signal or a second error signal when the difference signal (D) is greater than a predetermined threshold (SW1) or less than a negative of the predetermined threshold (−SW1) respectively, so that the first error signal indicates the main load signal is faulty and the second error signal indicates the auxiliary load signal is faulty.

    摘要翻译: 用于检测包含第一和第二微分器(10,16)的内燃机上的负载的错误信号特性的装置,具有从各个负载信号(S1,S2)产生相应的输出信号(S11,S22)的延迟装置; 分别与第一和第二微分器连接的第一和第二幅度形成装置(14,17),以从相应的输出信号(S11,S22)产生相应的幅度信号,第一和第二幅度形成装置 第一和第二幅度形成装置,分别产生第一和第二直流电压信号(MW1,MW2); 减法装置(19),用于从第一和第二直流电压信号(MW1,MW2)中减去产生差信号(D); 以及用于当差分信号(D)分别大于预定阈值(SW1)或小于预定阈值(-SW1)的负值时产生第一误差信号或第二误差信号的比较装置(20,23) 使得第一误差信号指示主负载信号有故障,第二误差信号指示辅助负载信号有故障。

    METHOD FOR FLUSHING AN ACTIVATED CARBON FILTER
    6.
    发明申请
    METHOD FOR FLUSHING AN ACTIVATED CARBON FILTER 审中-公开
    用于冲洗活性炭过滤器的方法

    公开(公告)号:US20120279480A1

    公开(公告)日:2012-11-08

    申请号:US13503107

    申请日:2010-10-29

    申请人: Ernst Wild

    发明人: Ernst Wild

    IPC分类号: F02M33/02

    CPC分类号: F02M25/0818

    摘要: In a method for flushing an activated carbon filter of a tank ventilation system of an internal combustion engine, which tank ventilation system includes a fuel tank and an activated carbon filter with which a tank shut-off valve TAV, a fuel tank vent valve TEV, and an activated carbon filter shut-off valve AAV are associated, the tank shut-off valve TAV is closed, the fuel tank vent valve TEV is opened, and the activated carbon filter shut-off valve AAV is closed. The activated carbon filter shut-off valve AAV is controlled to close in a clocked manner.

    摘要翻译: 在一种用于冲洗内燃机的箱式通风系统的活性炭过滤器的方法中,所述罐式通风系统包括燃料箱和活塞式碳过滤器,罐式切断阀TAV,燃料箱排放阀TEV, 并关闭活塞式碳过滤器截止阀AAV,油箱关闭阀TAV关闭,燃油箱排气阀TEV打开,活塞式碳过滤器截止阀AAV关闭。 活性炭过滤器截止阀AAV被控制为以时钟方式关闭。

    Method and device for operating an internal combustion engine
    7.
    发明授权
    Method and device for operating an internal combustion engine 有权
    用于操作内燃机的方法和装置

    公开(公告)号:US07188605B2

    公开(公告)日:2007-03-13

    申请号:US11084521

    申请日:2005-03-18

    IPC分类号: F02D41/30

    摘要: A method and a device for operating an internal combustion engine are provided, which allow a continuous limiting of the output of the internal combustion engine upon attaining a maximally possible injection duration of an injection valve. The internal combustion engine has at least one actuator for influencing the output of the internal combustion engine and at least one injection valve for supplying fuel to the combustion engine. A maximally possible injection duration for an injection procedure of the at least one injection valve is determined. A variable characterizing the output of internal combustion engine is limited as a function of the maximally possible injection duration by corresponding adjustment of the at least one actuator.

    摘要翻译: 提供了一种用于操作内燃机的方法和装置,其允许在获得喷射阀的最大可能的喷射持续时间时连续限制内燃机的输出。 内燃机具有至少一个致动器,用于影响内燃机的输出和用于向燃烧发动机供应燃料的至少一个喷射阀。 确定至少一个喷射阀的喷射程序的最大可能的喷射持续时间。 通过相应地调节至少一个致动器,表征内燃机的输出的变量被限制为最大可能的喷射持续时间的函数。

    Method for the reliable operation of a brake booster system, brake booster system, and circuit therefor for implementing the method
    9.
    发明授权
    Method for the reliable operation of a brake booster system, brake booster system, and circuit therefor for implementing the method 有权
    制动助力系统,制动助力系统及其电路的可靠运行方法,用于实施该方法

    公开(公告)号:US06871918B2

    公开(公告)日:2005-03-29

    申请号:US10207362

    申请日:2002-07-29

    IPC分类号: B60T13/72 B60T17/18 B60T8/88

    CPC分类号: B60T13/72 B60T17/18

    摘要: A method and system for ensuring reliable operation of a brake booster system for a vehicle braking system in which a pressure value prevailing in the brake pressure reservoir of the brake booster system is sensed by a pressure sensor. An error occurring in the brake booster system is detected by evaluating the sensed pressure value prevailing in the brake pressure reservoir as a function of the actuation of the brake actuating mechanism. The brake booster system includes a diagnostic circuit that is connected to the pressure sensor and to the brake actuating mechanism.

    摘要翻译: 一种用于确保用于车辆制动系统的制动助力系统的可靠运行的方法和系统,其中通过压力传感器感测到制动助力器系统的制动压力贮存器中的压力值。 通过根据制动器致动机构的致动来评估制动压力储存器中主要的感测压力值来检测制动助力系统中发生的错误。 制动助力系统包括连接到压力传感器和制动器致动机构的诊断电路。