Determination of a reception time of an ultrasonic signal by means of pulse shape detection
    61.
    发明申请
    Determination of a reception time of an ultrasonic signal by means of pulse shape detection 失效
    通过脉冲形状检测确定超声波信号的接收时间

    公开(公告)号:US20070186680A1

    公开(公告)日:2007-08-16

    申请号:US10591897

    申请日:2005-04-21

    申请人: Tobias Lang

    发明人: Tobias Lang

    IPC分类号: G01F1/66

    CPC分类号: G01F1/66

    摘要: The present invention relates to an ultrasonic flow sensor equipped with at least one ultrasonic transducer (A, B) for transmitting and receiving ultrasonic signals (A0, B0) and one receiver unit (4) that is connected to the ultrasonic transducer (A, B) and detects a zero crossing (N) of the ultrasonic signal (A0, B0) as a reception time after the ultrasonic signal (A0, B0) has exceeded a predetermined threshold (SW). The measurement precision of the sensor can be significantly improved if the receiver unit (4) determines the time of a value characteristic of the ultrasonic signal (A0, B0) and determines the relative time shift (deltat) of the characteristic value (Ampmax, Ts) in relation to the zero crossing (N0, N1) that is detected as the reception time (t0).

    摘要翻译: 超声波流量传感器技术领域本发明涉及一种超声波流量传感器,其配备有至少一个超声波换能器(A,B),用于发送和接收超声波信号(A 0,B 0)和一个接收器单元(4),所述超声波换能器 ,B),并检测超声信号(A 0,B 0)的过零点(N)为超声波信号(A 0,B 0)超过预定阈值(SW)之后的接收时间。 如果接收器单元(4)确定超声波信号(A 0,B 0)的值特性的时间并且确定特征值(Amp)的相对时移(deltat),则可以显着改善传感器的测量精度 相对于被检测为零交叉的过零点(N SUB,N 1,N 1),其被检测为 接收时间(t 0)。

    Method and computer system for operating at least two interconnencted control device
    62.
    发明申请
    Method and computer system for operating at least two interconnencted control device 有权
    用于操作至少两个互连控制装置的方法和计算机系统

    公开(公告)号:US20060235594A1

    公开(公告)日:2006-10-19

    申请号:US10527601

    申请日:2003-09-16

    IPC分类号: G06F17/00

    摘要: A method and a computer system for operating at least two interconnected control units. The control units access sensor data and each execute at least one computer program for controlling operational sequences, in particular in a vehicle. The control units exchange synchronization information with one another. In order to design and refine a computer system in a way that will enable even especially complex operational sequences, as required in a modern motor vehicle, for example, to be controlled and/or regulated simply and cost-effectively with the aid of the computer system, using conventional control units, the control units execute the same computer program time-synchronously using a settable time lag.

    摘要翻译: 一种用于操作至少两个互连的控制单元的方法和计算机系统。 控制单元访问传感器数据,并且每个执行至少一个用于控制操作顺序的计算机程序,特别是在车辆中。 控制单元彼此交换同步信息。 为了设计和改进计算机系统,使得能够根据现代机动车辆所需的特别复杂的操作顺序,例如,借助于计算机来简单和成本有效地控制和/或调节 系统,使用传统的控制单元,控制单元使用可设定的时间滞后时间同步地执行相同的计算机程序。

    Method for pulsation correction within a measuring device measuring a media mass flow
    63.
    发明申请
    Method for pulsation correction within a measuring device measuring a media mass flow 失效
    测量介质质量流量的测量装置内的脉动校正方法

    公开(公告)号:US20060224298A1

    公开(公告)日:2006-10-05

    申请号:US11242722

    申请日:2005-10-03

    申请人: Tobias Lang

    发明人: Tobias Lang

    IPC分类号: G01M15/04

    摘要: A method and a device for the pulsation correction of measured values of a flow device, which is used to measure pulsating gas flows in internal combustion engines. A raw signal of the flow sensor is fed to an adder of a compensation circuit. The raw signal is at the same time fed to a multiple frequency filter, which has at least one high-pass filter, at least one low-pass filter and at least one band-pass filter. The filtered signals are written into addresses of a correction characteristics map. The values stored in addresses are added to the raw signal by the adder.

    摘要翻译: 用于脉动校正流量装置的测量值的方法和装置,其用于测量内燃机中的脉动气流。 流量传感器的原始信号被馈送到补偿电路的加法器。 原始信号同时馈送到具有至少一个高通滤波器,至少一个低通滤波器和至少一个带通滤波器的多频滤波器。 滤波后的信号被写入校正特性图的地址。 存储在地址中的值由加法器加到原始信号中。

    Ultrasonic flow meter including guide elements
    64.
    发明申请
    Ultrasonic flow meter including guide elements 失效
    超声波流量计包括导向元件

    公开(公告)号:US20060156828A1

    公开(公告)日:2006-07-20

    申请号:US11304181

    申请日:2005-12-14

    IPC分类号: G01F1/66

    CPC分类号: G01F5/00 G01F1/662 G01F1/667

    摘要: The measurement of volume flows or mass flows in the intake system of motor vehicle internal combustion engines plays a significant role in reducing pollutant emissions. Therefore, an ultrasonic flow meter for measuring a flow rate of a fluid flowing in a primary flow direction is described. The ultrasonic flow meter has at least two ultrasonic transducers, the ultrasonic transducers being capable of emitting and/or receiving ultrasonic waves at an angle α to the primary flow direction which is different from 90°. Furthermore, the ultrasonic flow meter has at least one guide element which is entirely or partially situated in the fluid. This guide element diverts at least one part of the flowing fluid in such a way that in the diversion, a velocity component is transferred to at least one part of the flowing fluid perpendicular to the primary flow direction. Guide vanes or displacers in particular are described as guide elements. In addition, turbulators may be provided on the guide elements, the turbulators generating a longitudinal fluid bed along the guide elements and thus causing the flow of the fluid to have a better contact with the guide elements when flowing around them. This reduces turbulences within the ultrasonic flow meter. Compared to the devices known from the related art, the ultrasonic flow meters described are distinguished by an improved signal-to-noise ratio and accordingly by a higher measuring precision.

    摘要翻译: 机动车内燃机进气系统的体积流量或质量流量的测量在减少污染物排放方面起着重要的作用。 因此,描述了用于测量在主流动方向上流动的流体的流量的超声波流量计。 超声波流量计具有至少两个超声波换能器,超声换能器能够以与90°不同的一次流动方向的角度α发射和/或接收超声波。 此外,超声波流量计具有至少一个完全或部分位于流体中的引导元件。 该引导元件以这样一种方式使流动流体的至少一部分转向,即在转向中,速度分量被传递到垂直于主流动方向的流动流体的至少一部分。 导向叶片或置换器特别被描述为导向元件。 此外,可以在引导元件上设置紊流器,所述湍流器沿着引导元件产生纵向流体床,并且因此当流体流动时,使流体流动与引导元件更好地接触。 这可以减少超声波流量计内的湍流。 与现有技术中已知的装置相比,所描述的超声波流量计通过提高的信噪比并因此通过更高的测量精度来区分。

    Device for determing at least one parameter of a medium flowing inside a conduit
    65.
    发明申请
    Device for determing at least one parameter of a medium flowing inside a conduit 审中-公开
    用于确定在导管内流动的介质的至少一个参数的装置

    公开(公告)号:US20060150730A1

    公开(公告)日:2006-07-13

    申请号:US10534105

    申请日:2003-05-23

    IPC分类号: G01M19/00

    摘要: A device for determining at least one parameter of a medium flowing in a line in a main flow direction includes a part adapted for introduction into the line. The part may include a measuring element for determining the at least one parameter; a measuring channel that may include an inlet, an outlet, a bent first section between the inlet and the measuring element, and a second section into which the first section may transition, the measuring element being located in the second section; and a projection, where a partial stream of the medium may flow in a measuring channel flow direction from the inlet to the outlet, the first section may redirect the partial stream after entering the measuring channel, and the projection may project into the measuring channel at a location downstream from the inlet and upstream from the measuring element relative to the measuring channel flow direction to direct the flow of the partial stream, and counteract a separation of the flow of the partial stream from channel walls of the measuring channel.

    摘要翻译: 用于确定在主流动方向上在一行中流动的介质的至少一个参数的装置包括适于引入到该线中的部分。 该部件可以包括用于确定至少一个参数的测量元件; 测量通道,其可以包括入口,出口,入口和测量元件之间的弯曲的第一部分,以及第一部分可以转过的第二部分,测量元件位于第二部分中; 以及投影,其中介质的部分流可以在从入口到出口的测量通道流动方向上流动,第一部分可以在进入测量通道之后重新定向部分流,并且投影可以投射到测量通道中 位于入口下游并且相对于测量通道流动方向上游的位置,以引导部分流的流动,并且抵消部分流的流动与测量通道的通道壁的分离。

    Method for producing at least one characteristic line of an air mass detecting device for an internal combustion engine
    66.
    发明授权
    Method for producing at least one characteristic line of an air mass detecting device for an internal combustion engine 失效
    一种用于生产用于内燃机的空气质量检测装置的至少一个特征线的方法

    公开(公告)号:US07076359B2

    公开(公告)日:2006-07-11

    申请号:US10771602

    申请日:2004-02-04

    IPC分类号: F02D41/18

    摘要: In a method for producing at least one characteristic line of an air mass detecting device for an internal combustion engine precise results can be obtained in the case of a pulsating air flow in a suction region of the internal combustion engine by an air mass detecting device, wherein an adjusted dynamic characteristic line is produced by a non-linear optimization process.

    摘要翻译: 在用于制造内燃机的空气质量检测装置的至少一个特征线的方法中,通过空气质量检测装置在内燃机的吸入区域中的脉动空气流动的情况下可以获得精确的结果, 其中通过非线性优化处理产生经调整的动态特性线。

    Method for determining segment times between detections of equally spaced markings on a rotating body connected with a camshaft of an internal combustion engine
    68.
    发明授权
    Method for determining segment times between detections of equally spaced markings on a rotating body connected with a camshaft of an internal combustion engine 有权
    用于确定与内燃机的凸轮轴连接的旋转体上等间隔的标记的检测之间的段时间的方法

    公开(公告)号:US06286365B1

    公开(公告)日:2001-09-11

    申请号:US09284116

    申请日:1999-06-14

    IPC分类号: G01L326

    CPC分类号: H03M1/06 F02D41/009 H03M1/143

    摘要: The method for determining segment times (Tk) required for controlling an internal combustion engine includes providing a transducer disk (17) connected to a camshaft of the engine with a plurality of markings equally spaced from each other on the transducer disk; measuring respective segment times (Tk) between detection of corresponding pairs of markings on the transducer disk (17) by means of a camshaft sensor (21); triggering fuel injection events and combustion events in order to trip acceleration events at a substantially constant camshaft rotation speed; determining a resulting acceleration quotient (Qk) for a current segment time as a quotient of the current segment time divided by a preceding segment time and correcting a following segment time by means of the acceleration quotient (Qk) for the current segment time. The method is not performed when the internal combustion engine has a crankshaft with a properly working crankshaft sensor for measuring crankshaft rotation speed.

    摘要翻译: 用于确定控制内燃机所需的段时间(Tk)的方法包括:在换能器盘上提供与发动机的凸轮轴相连的多个标记相互间隔开的换能器盘(17); 通过凸轮轴传感器(21)在传感器盘(17)上检测相应的标记对之间测量各段时间(Tk); 触发燃料喷射事件和燃烧事件,以便在基本恒定的凸轮轴转速下跳闸加速事件; 将当前段时间的结果加速度商(Qk)确定为当前段时间除以前一段时间的商,并借助于当前段时间的加速商(Qk)来校正后续段时间。 当内燃机具有用于测量曲轴转速的具有适当工作的曲轴传感器的曲轴时,不执行该方法。

    Ultrasonic flow sensor for use in a fluid medium
    70.
    发明授权
    Ultrasonic flow sensor for use in a fluid medium 有权
    用于流体介质的超声波流量传感器

    公开(公告)号:US08997583B2

    公开(公告)日:2015-04-07

    申请号:US13508322

    申请日:2010-09-22

    申请人: Tobias Lang

    发明人: Tobias Lang

    IPC分类号: G01F1/66

    CPC分类号: G01F1/662

    摘要: An ultrasonic flow sensor for use in a fluid medium is described. The ultrasonic flow sensor includes at least two ultrasonic converters which are situated in a flow tube offset relative to one another, longitudinally with respect to a flow of the fluid medium. The ultrasonic flow sensor also includes a reflection surface, the ultrasonic converters being set up to exchange ultrasonic signals via simple reflection on the reflection surface. In addition, a deflection device is provided between the ultrasonic converters which is set up to essentially suppress parasitic ultrasonic signals, which are reflected from the reflection surface and which strike the deflection device, by deflection away from the ultrasonic converters.

    摘要翻译: 描述了用于流体介质的超声波流量传感器。 所述超声波流量传感器包括至少两个超声波转换器,所述至少两个超声波转换器相对于所述流体介质的流动纵向相对于彼此偏移地位于流动管中。 超声波流量传感器还包括反射表面,超声波转换器被设置成通过反射表面上的简单反射来交换超声波信号。 此外,偏转装置设置在超声波转换器之间,其被设置为基本上抑制从反射表面反射并且偏离偏转装置的寄生超声信号通过远离超声波转换器偏转。