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    PREDICTION OF END-OF-LIFE OF A DIRECT CURRENT (DC) MOTOR
    12.
    发明申请
    PREDICTION OF END-OF-LIFE OF A DIRECT CURRENT (DC) MOTOR 审中-公开

    公开(公告)号：WO2018190879A1

    公开(公告)日：2018-10-18

    申请号：PCT/US2017/027813

    申请日：2017-04-14

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： KOEHLER, Duane A. ,  EWE, Michael ,  COLLINS, Eric

    IPC: G01R31/34 ,  H02K15/00

    CPC classification number: H02K11/20 ,  G01R31/343 ,  H02K15/00

    Abstract: Described herein are techniques that facilitate the prediction of the end-of-life of a direct current (DC) motor of an apparatus. The described techniques include tracking end-of-life indicative motor-response values of a DC motor based on an applied-voltage value at its corresponding specified speed of the DC motor when the motor is engaged. in response to the determination that the tracked values exceed a range of acceptable operational values, a health-status notification regarding that DC motor is generated. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

    INDEXING A MEDIA FEED SHAFT
    13.
    发明申请
    INDEXING A MEDIA FEED SHAFT 审中-公开
    索引媒体进纸轴

    公开(公告)号：WO2017074367A1

    公开(公告)日：2017-05-04

    申请号：PCT/US2015/057884

    申请日：2015-10-28

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： JARIABKA, Keith ,  EWE, Michael

    IPC: B41J13/00 ,  B41J11/42 ,  G01D5/34

    CPC classification number: B41J11/42 ,  G01D5/34

    Abstract: In an implementation, an example method of indexing a media feed shaft in a media feed device includes rotating a media feed shaft and transmitting the rotation to an output gear that is remote from the media feed shaft. The method also includes sensing a feature of the rotating output gear and indexing the media feed shaft to the feature.

    Abstract translation: 在一个实施方式中，在介质供给装置中对介质供给轴进行索引的示例性方法包括旋转介质供给轴并将旋转传递到远离介质供给轴的输出齿轮。 该方法还包括感测旋转输出齿轮的特征并将介质进给轴分度到特征。

    FEED FORWARD TERMS BASED ON CONTINUOUS MODEL
    18.
    发明公开
    FEED FORWARD TERMS BASED ON CONTINUOUS MODEL 审中-公开
    基于连续模型的前馈条件

    公开(公告)号：EP3233433A1

    公开(公告)日：2017-10-25

    申请号：EP15888029.4

    申请日：2015-04-02

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： EWE, Michael

    IPC: B29C67/00 ,  B33Y30/00 ,  B33Y50/02

    CPC classification number: G05B19/23 ,  B33Y50/02 ,  B41J19/202 ,  B41J25/001 ,  B41J29/38 ,  G05B19/232 ,  G05B2219/41437 ,  G05B2219/45187

    Abstract: An example method for controlling a carriage of a printing device is described. In one implementation, a target velocity value that satisfies a sharpness threshold is filtered by a processor resource of the printing device, a feed forward term is generated using a continuous model applied to the filtered velocity input using a plurality of electromechanical parameters, a feedback term is generated based on a difference between an expected pulse-width modulation (PWM) profile and an actual PWM profile, and a voltage to be provided to a motor of the carriage is adjusted based on the feed forward term and the feedback term.

    Abstract translation: 描述了用于控制打印装置的托架的示例方法。 在一个实现中，满足锐度阈值的目标速度值由打印设备的处理器资源进行滤波，使用应用于使用多个机电参数的滤波速度输入的连续模型来生成前馈项，反馈项 是基于预期的脉宽调制（PWM）轮廓和实际的PWM轮廓之间的差异而生成的，并且基于前馈项和反馈项来调整要提供给托架的马达的电压。

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