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    • 2. 发明授权
    • Method for determining the load signal of an internal combustion engine
having external exhaust-gas recirculation
    • 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
    • US5889203A
    • 1999-03-30
    • US877798
    • 1997-06-18
    • Ernst WildManfred PfitzAxel Stuber
    • Ernst WildManfred PfitzAxel Stuber
    • F02M25/07F02D21/08F02D45/00G01M15/00
    • F02D41/0072Y02T10/47
    • 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).
    • 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)。
    • 3. 发明授权
    • Fuel dosage control process for internal combustion engines
    • 内燃机燃油剂量控制程序
    • US6035831A
    • 2000-03-14
    • US860036
    • 1997-06-09
    • Axel StuberLutz ReuschenbachHans Veil
    • Axel StuberLutz ReuschenbachHans Veil
    • F02D41/04F02D41/10F02D41/12F02M51/00
    • F02D41/107F02D41/047
    • A method for influencing fuel metering in an internal combustion engine, in particular in transient operation. In accordance with the method, a correction signal (fTW, kTW) is generated to influence the fuel metering. At least one of the following signals is considered thereby: a signal (QK), which relates to the heat flow through fuel evaporation in the intake section (102); a signal (QAn), which relates to the heat flow between the air flowing through intake section (102) and the wall of intake section (102); a signal (QMot), which relates to the heat flow between the engine block and the wall of intake section (102); a signal (QU), which relates to the heat flow between the air flowing through the engine compartment and the wall of intake section (102). In generating the correction signal (fTW, kTW), a signal (TW) can be determined, which represents the wall temperature of the intake section (102).
    • PCT No.PCT / DE95 / 01596 Sec。 371日期:1997年6月9日 102(e)日期1997年6月9日PCT提交1995年11月15日PCT公布。 出版物WO96 / 日期1996年6月20日一种用于影响内燃机燃油计量的方法,特别是在瞬时运转中。 根据该方法,产生校正信号(fTW,kTW)以影响燃料计量。 考虑以下信号中的至少一个:与进气部分(102)中通过燃料蒸发的热流有关的信号(QK); 信号(QAn),其涉及流过进气部分(102)的空气和进气部分(102)的壁之间的热流; 信号(QMot),其涉及发动机缸体和进气段(102)的壁之间的热流; 信号(QU),其涉及流过发动机舱的空气与进气部分(102)的壁之间的热流。 在产生校正信号(fTW,kTW)时,可以确定表示进气部分(102)的壁温的信号(TW)。
    • 4. 发明授权
    • Method and arrangement for controlling the quantity of fuel for an
internal combustion engine having a catalytic converter
    • 用于控制具有催化转化器的内燃机的燃料量的方法和装置
    • US5293740A
    • 1994-03-15
    • US937430
    • 1992-08-31
    • Bernd HeppnerWolfgang RichterAxel Stuber
    • Bernd HeppnerWolfgang RichterAxel Stuber
    • F01N3/24F01N9/00F01N11/00F02D41/02F02D41/04F02D41/14F02D45/00
    • F02D41/1479F01N11/007F01N9/00F02D41/0295F02D41/1402F02D41/2474F01N2550/02F02D2200/0814F02D41/2454Y02T10/47
    • The invention is directed to a method for controlling the fuel quantity for an internal combustion engine having a catalytic converter and includes the steps of: determining the air mass flow inducted by the engine; determining a precontrol variable for the quantity of fuel in dependence on current values of operating variables of the engine; presetting a desired lambda value for the air/fuel mixture to be supplied to the engine; checking the actual lambda value of the exhaust gas forward of the catalytic converter; comparing the desired lambda value to the actual lambda value to form a comparison; controlling the fuel quantity in dependence upon the comparison; determining the oxygen actual charge level of the catalytic converter; comparing the determined actual charge level to a desired charge level; and, then, when the actual charge level is greater than the desired charge level, lowering the desired lambda value to below the value one; otherwise, when the actual charge level is less than the desired charge level, increasing the desired lambda value above the value one. This method leads to the condition that very low toxic exhaust gas is produced even for transient operations since the catalytic converter almost always has sufficient storage capacity for further oxygen which occurs temporarily or adequate oxygen for combusting fuel which occurs temporarily. The invention is also directed to an arrangement for carrying out the method.
    • 本发明涉及一种用于控制具有催化转化器的内燃机的燃料量的方法,包括以下步骤:确定由发动机引入的空气质量流; 根据发动机的运行变量的当前值确定燃料量的预控变量; 预设要供应给发动机的空气/燃料混合物的期望的λ值; 检查催化转化器前面的废气的实际λ值; 将期望的λ值与实际的λ值进行比较以形成比较; 根据比较控制燃料量; 确定催化转化器的氧气实际电荷水平; 将确定的实际电荷水平与期望的充电水平进行比较; 然后,当实际电荷水平大于期望的电荷水平时,将期望的λ值降低到低于值1; 否则,当实际电荷水平小于期望的电荷水平时,将期望的λ值增加到高于值1。 这种方法导致即使对于瞬时操作也产生非常低的有毒废气的条件,因为催化转化器几乎总是具有足够的储存容量用于进一步氧气,其临时产生氧气或足够的氧气来临时燃烧燃料。 本发明还涉及一种用于实施该方法的装置。
    • 5. 发明申请
    • Device for the Ultrasound Testing of Hot Rolling Material
    • 热轧材料超声波检测装置
    • US20090260439A1
    • 2009-10-22
    • US11992245
    • 2006-07-27
    • Axel StuberPeter Van Hullen
    • Axel StuberPeter Van Hullen
    • G01N29/22
    • G01N29/228B21B38/00G01N29/043G01N29/11G01N29/262G01N29/27G01N2291/106G01N2291/2632
    • The invention relates to a device for the ultrasound testing of hot rolling material during the rolling procedure in one of a plurality of rolling stands in a rolling train which are arranged one behind the other, comprising at least two rolls which leave a roll gap between them, there being associated with the rolls ultrasound testing heads which are arranged such that parts of the roll body itself serve as the path along which the ultrasound waves pass on their way to the rolling material to be tested in the roll gap, which is characterised in that the rolls provided with the ultrasound testing heads are adjustable, have a straight transverse profile and a diameter which is a multiple of the width of the roll gap, with the result that a large rolling angle (α) is provided, and these rolls are arranged in one of the first rolling stands of the rolling train.
    • 本发明涉及一种用于在轧制过程中的轧制过程中的多个轧制机架中的一个中的热轧材料的超声波测试装置,它们一个接一个地布置,包括至少两个辊,它们在它们之间留有辊间隙 与滚筒超声波测试头相关联,其布置成使得卷体本身的部分用作超声波在其滚动间隙中被测试的滚动材料通过的路径,其特征在于 提供有超声波测试头的辊可调节,具有直的横向轮廓和直径,其是辊间隙的宽度的倍数,结果是提供大的滚动角(α),并且这些辊是 布置在滚动列车的第一轧制机架之一中。