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    • 4. 发明申请
    • Method and apparatus for detemining the rotational speed of turbochargers
    • 用于确定涡轮增压器转速的方法和装置
    • US20060064231A1
    • 2006-03-23
    • US11068847
    • 2005-03-02
    • Nicholas FeketeLorenzo Matassini
    • Nicholas FeketeLorenzo Matassini
    • G06F19/00F02D23/00
    • G01P3/44
    • The invention relates to a method and a corresponding apparatus for detecting the rotational speed of turbochargers, especially on internal combustion engines in motor vehicles, with the steps: recording the body sound (SE) of the turbocharger and analyzing the frequency spectrum (30, 31, 32, 33) of the recorded body sound (SE). According to the invention, in the analysis of the frequency spectrum several frequency signals (SD1, SD2, SD3) are determined, which represent possible rotational speeds of the turbocharger, an amplitude analysis of the recorded body sound (SE) is performed in order to determine an estimated value (SD-estimate) for the turbocharger speed, and the estimated value (SD-estimate) is correlated with the several frequency signals (SD1, SD2, SD3) in order to determine the frequency signal (SD2) as the actual turbocharger rotational speed (Dactual) which correlates with the greatest probability with the obtained estimate (SD-estimate).
    • 本发明涉及一种用于检测涡轮增压器,特别是汽车内燃机的涡轮增压器的转速的方法和相应的装置,其特征在于:记录涡轮增压器的身体声音(S E) 分析记录的身体声音(S SUB> E)的频谱(30,31,32,33)。 根据本发明,在对频谱的分析中,确定了几个频率信号(S L1,S 2,D 3,S 3 3)),哪些 表示涡轮增压器的可能的转速,执行所记录的身体声音(S SUB)的振幅分析,以便确定估计值(S D D估计值),用于 涡轮增压器速度和估计值(S&gt; D估计)与几个频率信号(S SUB D 2,S 2,D 2,S 2 以确定作为与最大概率相关的实际涡轮增压器旋转速度(D <实际)的频率信号(S SUB> D2 ) 与所获得的估计(S&lt; D - 估计)。
    • 6. 发明授权
    • Automatic charging pressure control and automatic exhaust gas recirculation control system in an internal-combustion engine, particularly a diesel engine
    • 内燃机,特别是柴油发动机的自动充气压力控制和自动废气再循环控制系统
    • US06308517B1
    • 2001-10-30
    • US09232703
    • 1999-01-19
    • Hans FaustenNicholas FeketeThomas MuehleisenStefan PischingerSiegfried Weber
    • Hans FaustenNicholas FeketeThomas MuehleisenStefan PischingerSiegfried Weber
    • F02B3344
    • F02D41/0052F02B37/24F02D23/00F02D41/0007F02M26/05F02M26/10Y02T10/144Y02T10/47
    • A system for automatic charging pressure control using an exhaust gas turbocharger with a variably adjustable turbine cross-section and for automatic exhaust gas recirculation control in the case of an internal-combustion engine, particularly a diesel engine. An automatic control system has a first controller which has an output for the variation of the turbine cross-section of the exhaust gas turbocharger. The command variable for the automatic exhaust gas recirculation control in a first low load-rotational speed range is the air flow rate in the intake pipe. The command variable for the automatic charging pressure control in a second higher load-rotational speed range is the charging pressure in the intake pipe. For the automatic exhaust gas recirculation control, an exhaust gas recirculation pipe connects the exhaust gas pipe with the suction pipe. In the case of this system, for achieving the lowest possible pollutant emission while simultaneously minimizing fuel consumption, exhaust gas recirculation rates which are as precise as possible are defined in the lower load-rotational speed range, and a charging pressure which is as precise as possible is defined in the upper load-rotational speed range via a corresponding automatic control.
    • 一种使用具有可变涡轮机横截面的排气涡轮增压器进行自动充气压力控制的系统,并且在内燃机特别是柴油发动机的情况下用于自动废气再循环控制。 自动控制系统具有第一控制器,其具有用于废气涡轮增压器的涡轮横截面变化的输出。 在第一低负载转速范围内的自动排气再循环控制的指令变量是进气管中的空气流量。 在第二较高负载转速范围内的自动充气压力控制的指令变量是进气管中的充气压力。 对于自动废气再循环控制,废气再循环管将排气管与吸入管连接。 在该系统的情况下,为了实现尽可能最低的污染物排放同时最小化燃料消耗,尽可能精确地排除废气再循环率在较低的负载 - 转速范围内被定义,并且充气压力与 可能通过相应的自动控制在上负载转速范围内定义。