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    • 1. 发明授权
    • Method and device for calibrating a pressure sensor
    • 用于校准压力传感器的方法和装置
    • US06802209B2
    • 2004-10-12
    • US10182464
    • 2002-09-05
    • Klaus JoosJens WolberThomas FrenzHansjoerg BochumMatthias KuesellMarkus Amler
    • Klaus JoosJens WolberThomas FrenzHansjoerg BochumMatthias KuesellMarkus Amler
    • G01M1500
    • F02M65/00F02D41/2432F02D41/2441F02D41/2474F02D41/3836F02D41/3854F02D2041/223F02D2250/31
    • 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.
    • 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。
    • 4. 发明授权
    • Diagnostic method for a fuel supply system
    • 燃油供应系统的诊断方法
    • US06389901B1
    • 2002-05-21
    • US09671609
    • 2000-09-28
    • Klaus JoosJens WolberThomas FrenzHansjoerg BochumMarkus Amler
    • Klaus JoosJens WolberThomas FrenzHansjoerg BochumMarkus Amler
    • G01L700
    • F02D41/3854F02D41/22F02D2041/224F02M37/18
    • 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.
    • 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。
    • 5. 发明授权
    • Fuel supply device for an internal combustion engine of a motor vehicle
    • 用于汽车内燃机的燃料供应装置
    • US06474310B2
    • 2002-11-05
    • US09782487
    • 2001-02-13
    • Klaus JoosJens WolberThomas FrenzMarkus AmlerHansjoerg Bochum
    • Klaus JoosJens WolberThomas FrenzMarkus AmlerHansjoerg Bochum
    • F02M3710
    • F02M37/106F02M37/025
    • 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.
    • 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。
    • 10. 发明授权
    • Method and device for varying the supply pressure applied to a high pressure pump and generated by a low pressure pump
    • 用于改变施加到高压泵并由低压泵产生的供应压力的方法和装置
    • US06708671B1
    • 2004-03-23
    • US10111612
    • 2002-05-28
    • Klaus JoosJens WolberThomas FrenzHansjoerg BochumMarkus Amler
    • Klaus JoosJens WolberThomas FrenzHansjoerg BochumMarkus Amler
    • F02M4100
    • F02D41/1401F02D41/3082F02D2200/0606F02D2250/02
    • Method for varying a prepressure (p_des) generated by a low-pressure pump and applied to a high-pressure pump with the low-pressure pump (2) and the high-pressure pump (3) pumping fuel for the internal combustion engine (1). In order to keep the prepressure (p_des), on the one hand, as low as possible to take load off the low-pressure pump (2) and to, on the other hand, adjust the prepressure (p_des) so high that a vaporization of the fuel is reliably avoided, the invention suggests that: the actual temperature (T_Krst) of the fuel in the high-pressure pump (3) is determined; a prepressure (p_des) as low as possible is determined in dependence upon the fuel temperature (T_Krst) for which a vaporization of the fuel in the high-pressure pump (3) is reliably avoided; and, the low-pressure pump (2) is so driven or controlled that it generates the determined prepressure (p_des). The method is preferably carried out on the basis of physical models of the high-pressure pump (3).
    • 用于改变由低压泵产生并用低压泵(2)和高压泵(3)泵送内燃机(1)的高压泵产生的压力(p_des)的方法 )。 为了保持前置压力(p_des),一方面尽可能的将低压泵(2)的负载降低,另一方面调节压力(p_des)如此高以致汽化 燃料的实际温度(T_Krst)确定为高压泵(3)中的燃料的实际温度(T_Krst) 根据可靠地避免高压泵(3)中的燃料蒸发的燃料温度(T_Krst)来确定尽可能低的预压(p_des) 并且,低压泵(2)被驱动或控制,从而产生所确定的预压(p_des)。 该方法优选基于高压泵(3)的物理模型进行。