Method for generating a motion profile of a motor
    1.
    发明授权
    Method for generating a motion profile of a motor 失效
    用于产生电动机运动曲线的方法

    公开(公告)号:US5917301A

    公开(公告)日:1999-06-29

    申请号:US31757

    申请日:1998-02-27

    申请人: In-oh Park

    发明人: In-oh Park

    IPC分类号: G05B11/36

    CPC分类号: G05B11/36

    摘要: Methods and systems consistent with the invention generate a motion profile of a motor. A reference acceleration profile, a reference velocity profile, and a reference displacement profile are first defined. Displacement-velocity data defining displacement data with respect to velocity data is then stored in a memory. A plurality of conversion constants which include a maximum velocity ratio K1, a maximum acceleration ratio K2, and a displacement conversion constant K3, are calculated, are then calculated using following equations: ##EQU1## where A.sub.max represents a maximum acceleration value in the reference acceleration profile, V.sub.max represents a maximum velocity value in the reference velocity profile, a.sub.max represents a maximum acceleration value in the generated profile, and V.sub.max represents a maximum velocity data in the profile to be generated. The system then determines a position data of the motor and maps the position data into a reference displacement data. A reference velocity data corresponding to the reference displacement data is then read from the memory. Finally, a driving velocity data is calculated from the reference velocity data.

    摘要翻译: 符合本发明的方法和系统产生电动机的运动曲线。 首先定义参考加速度曲线,参考速度曲线和参考位移曲线。 然后将定义相对于速度数据的位移数据的位移速度数据存储在存储器中。 然后使用以下等式计算包括最大速度比K1,最大加速比K2和位移转换常数K3的多个转换常数,其中Amax表示参考加速度曲线中的最大加速度值,Vmax 表示参考速度分布中的最大速度值,amax表示所生成轮廓中的最大加速度值,Vmax表示要生成的轮廓中的最大速度数据。 然后,系统确定电机的位置数据,并将位置数据映射到参考位移数据中。 然后从存储器中读取与参考位移数据相对应的参考速度数据。 最后,根据参考速度数据计算行驶速度数据。

    Method for detecting position of linear stepping motor and apparatus
therefor
    2.
    发明授权
    Method for detecting position of linear stepping motor and apparatus therefor 失效
    线性步进电机位置检测方法及其设备

    公开(公告)号:US5793834A

    公开(公告)日:1998-08-11

    申请号:US707956

    申请日:1996-09-10

    申请人: In-oh Park

    发明人: In-oh Park

    CPC分类号: H02P6/006 H02P6/185 H02P8/00

    摘要: A method for detecting the position of a linear stepping motor which includes the steps of generating a reference clock signal for detecting the position of the linear stepping motor using an oscillator and counting the reference clock signal with a counter, generating digital values of carrier sine waves sin.omega.t and cos.omega.t by inputting the output of the counter to a ROM having sine and cosine functions, converting the digital values of the carrier sine waves sin.omega.t and cos.omega.t to analog sine wave signals sin.omega.t and cos.omega.t using a digital-to-analog converter and outputting the result, generating the signals sin.omega.tcos.theta. and cos.omega.tsin.theta. by multiplying the analog sine wave signals sin.omega.t and cos.omega.t by sine wave signals sin.theta. and cos.theta. from a linear scale in a multiplier, adding the signals sin.omega.tcos.theta. and cos.omega.tsin.theta. in an adder to form a modulated signal sin(.omega.t+.theta.), converting the a modulated signal sin(.omega.t+.theta.) to a predetermined square wave signal in a comparator so as to be synchronized with the counter, and detecting the phase difference between the square wave signal from the comparator and the sine wave signal sin.omega.t to detect the position of the linear stepping motor. The reference sine wave and square wave signals are compared twice in one period and the displacement of the linear stepping motor is detected in real time by being synchronized with the reference sine wave.

    摘要翻译: 一种用于检测线性步进电机的位置的方法,包括以下步骤:产生用于使用振荡器检测线性步进电机的位置并用计数器对参考时钟信号进行计数的基准时钟信号,产生载波正弦波的数字值 通过将计数器的输出输入到具有正弦和余弦函数的ROM的sinωω和cosωωt,将载波正弦波sinωt和cosωt的数字值转换为模拟正弦波信号sinωω和cosω 使用数模转换器并输出结果,通过将模拟正弦波信号sinωt和cosωt乘以正弦波信号sinθ和cosθ从而产生信号sinωtcosθ和cosωtsinθ, 乘法器中的线性标度,在加法器中加上信号sinωωtcosθ和cosωtsinθ,以形成调制信号sin(ω,t +θ),将调制信号 将nal sin(omega t + theta)与比较器中的预定方波信号进行比较,以便与计数器同步,并且检测来自比较器的方波信号与正弦波信号sinωt之间的相位差以检测位置 的线性步进电机。 参考正弦波和方波信号在一个周期内进行两次比较,通过与参考正弦波同步,实时检测线性步进电机的位移。