Control device for electric-powered motor and designing method thereof
    1.
    发明授权
    Control device for electric-powered motor and designing method thereof 失效
    电动马达控制装置及其设计方法

    公开(公告)号:US06717381B2

    公开(公告)日:2004-04-06

    申请号:US10197404

    申请日:2002-07-18

    IPC分类号: G05B1101

    CPC分类号: H02P25/098

    摘要: A control device of an electric motor which can compatible high robust stability performance and a tracking performance and a designing method thereof. A feedback correction is obtained based on a detected motor rotation speed and a feedforward correction amount is obtained based on a calculated target torque by a controller of a microcomputer. The microcomputer commands torque control to an SR motor based on the feedback correction amount and the feedforward correction amount.

    摘要翻译: 一种电动马达的控制装置,其能够兼容高稳健性能和跟踪性能及其设计方法。 基于检测到的电动机转速获得反馈校正,并且基于由微型计算机的控制器计算出的目标转矩来获得前馈校正量。 微型计算机根据反馈校正量和前馈校正量,向SR电机指令转矩控制。

    Electric motor control device
    3.
    发明授权
    Electric motor control device 失效
    电动机控制装置

    公开(公告)号:US06653808B2

    公开(公告)日:2003-11-25

    申请号:US10080583

    申请日:2002-02-25

    IPC分类号: H02P705

    摘要: A controller K calculates a command torque by correcting the required torque w1 with a correction based on a motor rotation speed Nm, and controls an electric motor based on the command torque T. The command torque w1 is regarded as one content of an outside input W to the controller K. A difference between the rotation speed of the electric motor outputted by the actual model describing an actual response of the electric motor and another rotation speed of the electric motor outputted by a reference model describing ideal performance and vibration reduction is regarded as one content Z1 of controlled output Z from the controller K. Moreover, a characteristic variation depending on vehicle types and so on, a torque ripple, and a sensor noise are described by weight functions wm1, wm2 and wn. Then a pertubative output w2 and a sensor noise w3 are regarded as the remaining contents of the input W. An output of the weight function wm2 is regarded as the controlled output Z. The controller K is determined by solving H∞control problem that a transfer function between the outside input W and the controlled output Z is determined as an H∞norm of the transfer function to be smaller than a predetermined value.

    摘要翻译: 控制器K通过基于马达转速Nm的校正来校正所需转矩w1来计算指令转矩,并且基于指令转矩T来控制电动机。指令转矩w1被认为是外部输入W的一个内容 由描述电动机的实际响应的实际模型输出的电动机的转速与通过描述理想性能和减振的参考模型输出的电动机的另一转速之间的差异被认为是 另外,通过加权函数wm1,wm2和wn来描述根据车辆类型等的特性变化,转矩脉动和传感器噪声。 然后,输出w2和传感器噪声w3被认为是输入W的剩余内容。权重函数wm2的输出被认为是受控输出Z.控制器K通过解决H∞控制问题来确定转移 将外部输入W和受控输出Z之间的函数确定为传递函数的H∞norm小于预定值。

    Sewing machine having means for estimating mass of sewing material
    4.
    发明授权
    Sewing machine having means for estimating mass of sewing material 失效
    缝纫机具有估计缝制材料质量的装置

    公开(公告)号:US06341569B2

    公开(公告)日:2002-01-29

    申请号:US09803934

    申请日:2001-03-13

    IPC分类号: D05B2100

    CPC分类号: D05B19/16

    摘要: A sewing machine includes a movable holder portion which holds a material to be sewn, a holder drive portion which transfers the holder portion during sewing, a needle drive portion which drives a sewing needle to sew, and a controller which intelligently regulates the holder drive portion and the needle drive portion. The controller includes a) an initial motion device which initially transfers the material to be sewn before sewing or during an initial stage of sewing, and b) an estimating device which finds the mass of the material to be sewn depending on a physical value such as at least one of a moving velocity of the material to be sewn at a predetermined period of time and a moving distance of the material within the amount of the predetermined period of time.

    摘要翻译: 缝纫机包括:保持缝合材料的可动保持部,在缝制期间传送保持部的保持器驱动部,驱动缝纫针缝合的针驱动部;以及智能地调节保持器驱动部的控制部 和针驱动部。 控制器包括:a)初始运动装置,其在缝制之前或在缝纫的初始阶段期间最初传送要被缝制的材料,以及b)估计装置,其根据物理值找出要缝制的材料的质量, 在预定时间段内要缝制的材料的移动速度和材料在预定时间段内的移动距离中的至少一个。

    Stability control system for an automatic control system
    5.
    发明授权
    Stability control system for an automatic control system 失效
    自动控制系统的稳定性控制系统

    公开(公告)号:US5859774A

    公开(公告)日:1999-01-12

    申请号:US828777

    申请日:1997-03-27

    CPC分类号: B62D7/159 G05B17/02

    摘要: The invention is directed to a stability control system for an automatic control system, which includes a controlled system, a measuring unit for measuring a response characteristic of the controlled system, and a computing unit for processing the response characteristic to obtain a standard frequency transfer function and a varied frequency transfer function with a permissive variation to the standard frequency transfer function. A band division unit is provided for dividing the standard frequency transfer function and the varied frequency transfer function into a plurality of bands, respectively. A modeling unit is provided for mathematically approximating the standard frequency transfer function for each band and the varied frequency transfer function for each band, to obtain a standard approximate model and a varied approximate model, respectively. A variation computing unit is provided for computing a variation of the varied approximate model to the standard approximate model for each band. According to the variation in each band, a modern controller, e.g., H.infin. controller is set, thereby to provide a plurality of modern controllers, which are processed by a parallel processing unit in parallel with each other. Then, the controlled system is actuated according to a result processed by the parallel processing unit.

    摘要翻译: 本发明涉及一种用于自动控制系统的稳定性控制系统,其包括受控系统,用于测量受控系统的响应特性的测量单元和用于处理响应特性以获得标准频率传递函数的计算单元 以及具有对标准频率传递函数的允许变化的变化的频率传递函数。 提供一个分频单元,用于将标准频率传递函数和变化的频率传递函数分别分成多个频带。 提供了一个建模单元,用于数学近似每个频带的标准频率传递函数和每个频带的变化的频率传递函数,以分别获得标准近似模型和变化的近似模型。 提供了一种变化计算单元,用于计算变化的近似模型与每个频带的标准近似模型的变化。 根据每个频带的变化,设置现代控制器,例如H INFINITY控制器,从而提供由彼此并行的并行处理单元处理的多个现代控制器。 然后,根据由并行处理单元处理的结果来致动受控系统。