Operation control for a fuel feeding module with variable system pressure
    4.
    发明授权
    Operation control for a fuel feeding module with variable system pressure 失效
    具有可变系统压力的燃料供给模块的操作控制

    公开(公告)号:US06412475B1

    公开(公告)日:2002-07-02

    申请号:US09631017

    申请日:2000-08-02

    IPC分类号: F02M3704

    摘要: A fuel supply system for supplying an internal combustion engine has a consumption-controlled fuel feeding module which at a suction side is connected with a supply tank and at the pressure side is connected with an internal combustion engine. At pressure side of the fuel feeding module a return conduit is leads to at least one pump for filling of the fuel feeding aggregate. A preliminarily supplied return is blockable by a switchable adjusting member which adjusts the return quantity with an open switchable adjusting member by means of a throttle element in all operational conditions above a minimal pump consumption.

    摘要翻译: 用于供给内燃机的燃料供给系统具有消耗控制的燃料供给模块,其在吸入侧与供给箱连接,并且在压力侧与内燃机连接。 在燃料供给模块的压力侧,返回导管通向至少一个用于填充燃料供给骨料的泵。 预先提供的回程可通过可切换的调节构件阻挡,该可调节调节构件在高于最小泵消耗的所有操作条件下通过节流元件利用可开启的可切换调节构件来调节返回量。

    Diagnostic method for a fuel supply system
    6.
    发明授权
    Diagnostic method for a fuel supply system 失效
    燃油供应系统的诊断方法

    公开(公告)号:US06389901B1

    公开(公告)日:2002-05-21

    申请号:US09671609

    申请日:2000-09-28

    IPC分类号: G01L700

    摘要: The invention is directed to a method and an arrangement for operating a fuel supply system (10) and especially a fuel supply system of an internal combustion engine of a motor vehicle. Fuel is pumped into an accumulator (19) with the aid of pumps (13, 24) and the fuel is adjusted at least to a first pressure (P1) or a second pressure (P2). Initially, the first pressure (P1) is adjusted and a pressure signal (PS1) is detected and, thereafter, the second pressure (P2) is adjusted and a pressure signal (PS2) is detected. A pressure difference (&Dgr;P) is formed from the detected first and second pressure signals (PS1, PS2). If the pressure difference &Dgr;P deviates from an expected pressure difference (&Dgr;P_E) by more than a threshold value (S), then a fault in the fuel supply system (10) is detected and stored.

    摘要翻译: 本发明涉及用于操作燃料供应系统(10),特别是机动车辆的内燃机的燃料供应系统的方法和装置。 借助于泵(13,24)将燃料泵送到蓄能器(19)中,并将燃料调节至少至第一压力(P1)或第二压力(P2)。 首先,调整第一压力(P1)并检测压力信号(PS1),之后调整第二压力(P2),并检测压力信号(PS2)。 从检测到的第一和第二压力信号(PS1,PS2)形成压差(DELTAP)。 如果压力差DELTAP偏离预期压力差(DELTAP_E)大于阈值(S),则检测并存储燃料供应系统(10)中的故障。

    Fuel supply device for an internal combustion engine of a motor vehicle
    7.
    发明授权
    Fuel supply device for an internal combustion engine of a motor vehicle 失效
    用于汽车内燃机的燃料供应装置

    公开(公告)号:US06474310B2

    公开(公告)日:2002-11-05

    申请号:US09782487

    申请日:2001-02-13

    IPC分类号: F02M3710

    CPC分类号: F02M37/106 F02M37/025

    摘要: A fuel supply device for an internal combustion engine of a motor vehicle has a supply container, a feeding aggregate which is electric-motor driven and feeds fuel from the supply container to an injection device of the internal combustion engine, a pressure sensor which determines a fuel pressure downstream of the feeding aggregate, a control device connected with the pressure sensor and controlling an operation of the feeding aggregate so that a fuel pressure is at least approximately below a nominal pressure, a throttled discharge arranged downstream of the feeding aggregate, a valve device operative for controlling the discharge depending on a fuel pressure and opening the discharge when a fuel pressure located under the nominal pressure is exceeded, and a check valve integrated in the feeding aggregate.

    摘要翻译: 一种用于机动车辆的内燃机的燃料供应装置,具有:供给容器,由电动机驱动的供给集合体,从供给容器向内燃机的喷射装置供给燃料的压力传感器, 供给骨料下游的燃料压力,控制装置,其与压力传感器连接并控制进料骨料的操作,使得燃料压力至少近似低于公称压力;排出的排出口布置在进料骨料的下游;阀 装置,其用于根据燃料压力控制排放,并且当超过位于公称压力以下的燃料压力时打开排放;以及止回阀,其集成在供给集料中。

    Method and device for calibrating a pressure sensor
    10.
    发明授权
    Method and device for calibrating a pressure sensor 失效
    用于校准压力传感器的方法和装置

    公开(公告)号:US06802209B2

    公开(公告)日:2004-10-12

    申请号:US10182464

    申请日:2002-09-05

    IPC分类号: G01M1500

    摘要: The invention relates to a method and an arrangement for calibrating a pressure sensor (7) of a fuel-metering system of an internal combustion engine wherein the fuel-metering system includes: a high-pressure pump (2) for pumping fuel from a low-pressure region (ND) into a high-pressure region (HD) injectors (5) for metering the fuel from the high-pressure region (HD) into combustion chambers (6) of the internal combustion engine with the injectors (5) being drivable in dependence upon operating characteristic variables, and the pressure sensor (7) for measuring the pressure in the high-pressure region (HD). To calibrate the pressure sensor (7) so that the offset error is minimized, it is suggested that a pressure, which is present in the high-pressure region (HD), is applied as a reference pressure; that the pressure, which is present in the high-pressure region (HD), is measured as the sensor pressure by the pressure sensor (7); and, that the characteristic line of the pressure sensor (7) is so corrected that the difference of reference pressure and sensor pressure is minimized.

    摘要翻译: 本发明涉及一种用于校准内燃机的燃料计量系统的压力传感器(7)的方法和装置,其中燃料计量系统包括:高压泵(2),用于从低 压缩区域(ND)进入用于将来自高压区域(HD)的燃料计量到内燃机的燃烧室(6)的高压区域(HD)喷射器(5),其中喷射器(5)为 根据操作特性变量可驱动的压力传感器(7)和用于测量高压区域(HD)中的压力的​​压力传感器。 为了校准压力传感器(7),使得偏移误差最小化,建议施加存在于高压区域(HD)中的压力作为参考压力; 存在于高压区域(HD)中的压力由压力传感器(7)测量为传感器压力; 并且压力传感器(7)的特性线被校正为使得基准压力和传感器压力的差最小化。