Method for measuring the speed of an electrical machine
    21.
    发明申请
    Method for measuring the speed of an electrical machine 失效
    电机速度测量方法

    公开(公告)号:US20060001388A1

    公开(公告)日:2006-01-05

    申请号:US11173577

    申请日:2005-07-01

    IPC分类号: H02P5/00

    CPC分类号: H02P23/14 H02P23/03 H02P23/12

    摘要: In a method for measuring the speed of an electrical machine having a stator, a rotor and a winding, in particular of an electronically commutated motor, a speed-measurement signal ω is sampled, in that a measured speed value ω(k) for the rotor is determined for each of a series of sampling instants. Moreover, a moment of inertia value for the mass moment of inertia of the rotor is determined. In addition, a current signal I is sampled, in that a current value I(k) for the electrical current in the winding is determined for each of the sampling instants. An estimated value ωs(k) for each of the measured speed values ω(k) is determined from a measured speed value ωk(k−1) assigned to an earlier sampling instant, from the current signal I and from the moment of inertia value. A tolerance band containing the estimated value ωs(k) is assigned to this estimated value ωs(k). If the measured speed value ω(k) lies outside of the tolerance band, the measured speed value ω(k) is replaced by a speed value ωk(k) that is within the tolerance band.

    摘要翻译: 在用于测量具有定子,转子和绕组(特别是电子换向电动机)的电机的速度的方法中,对速度测量信号ω进行采样,其中测量的速度值ω(k)用于 为一系列采样时刻中的每一个确定转子。 此外,确定转子的质量惯性矩的惯性矩值。 此外,对每个采样时刻确定绕组中的电流的电流值I(k),对电流信号I进行采样。 根据分配给一个测量速度值ω(k)的测量速度值ωk(k-1)来确定每个测量速度值ω(k)的估计值ωmax(k) 早期采样瞬间,从当前信号I和惯性矩值。 包含估计值ωga(k)的公差带被分配给该估计值ωga(k)。 如果测量的速度值ω(k)位于公差带之外,则测量的速度值ω(k)被公差带内的速度值ωk(k)代替。

    Passive safety switch
    26.
    发明授权
    Passive safety switch 有权
    被动安全开关

    公开(公告)号:US08571775B2

    公开(公告)日:2013-10-29

    申请号:US13584301

    申请日:2012-08-13

    IPC分类号: G06F7/00

    摘要: The invention relates to a smart actuator for actuating a clutch having a communication interface for connecting to a higher-level control unit, and at least one data line for connecting to the higher-level control unit, where the smart actuator is configured to identify errors in the higher-level control unit and/or an assigned second smart actuator, and where the smart actuator has controlling means that are suitable for converting the controlled system into a safe system state in the case of a recognized error. Furthermore, the invention relates to a corresponding control method and a control system in which the smart actuators and the method are used.

    摘要翻译: 本发明涉及一种用于致动离合器的智能致动器,该离合器具有用于连接到较高级别的控制单元的通信接口以及用于连接到上级控制单元的至少一条数据线,其中智能致动器配置为识别错误 在上级控制单元和/或分配的第二智能致动器中,并且其中智能致动器具有适合于在识别错误​​的情况下将受控系统转换为安全系统状态的控制装置。 此外,本发明涉及使用智能执行器和方法的相应的控制方法和控制系统。