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    CURRENT SENSOR FAULT MITIGATION FOR STEERING SYSTEMS WITH PERMANENT MAGNET DC DRIVES
    1.
    发明申请
    CURRENT SENSOR FAULT MITIGATION FOR STEERING SYSTEMS WITH PERMANENT MAGNET DC DRIVES 审中-公开

    公开(公告)号：US20190135331A1

    公开(公告)日：2019-05-09

    申请号：US15804281

    申请日：2017-11-06

    Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION

    Inventor： Prerit Pramod ,  Rakesh Mitra ,  Rangarajan Ramanujam

    IPC: B62D5/04 ,  H02P7/285

    CPC classification number: B62D5/049 ,  B62D5/046 ,  B62D5/0481 ,  H02P7/285 ,  H02P29/032 ,  H02P2205/01

    Abstract: Technical solutions are described for current sensor fault mitigation for systems with permanent magnet DC drives. An example power steering system includes a brush motor, and a motor control system that generates an amount of torque using the brush motor, the amount of torque corresponding to a torque command. The motor control system includes a current sensor fault detector that detects a current sensor fault associated with a current sensor used to measure a current across the brush motor. The motor control system further includes a velocity observer that computes an estimated motor velocity in response to the current sensor fault. The motor control system further includes a feedforward controller that generates a current command for generating the amount of torque using the brush motor, the current command generated using the estimated motor velocity.

    MOTOR CONTROL DEVICE AND GAME MACHINE
    4.
    发明申请
    MOTOR CONTROL DEVICE AND GAME MACHINE 审中-公开

    公开(公告)号：US20180046157A1

    公开(公告)日：2018-02-15

    申请号：US15652291

    申请日：2017-07-18

    Applicant: OMRON Corporation

    Inventor： Hiroyuki IBUKI ,  Akihiro ISHII

    IPC: G05B15/02 ,  A63F13/28 ,  H02P31/00

    CPC classification number: G05B15/02 ,  A63F13/28 ,  G07F17/3202 ,  H02P7/285 ,  H02P7/2855 ,  H02P7/2913 ,  H02P31/00

    Abstract: A motor control device configured to control a motor, includes a first memory; a second memory different from the first memory; a communication interface circuit configured to receive a control command from an external device; a command parser configured to store control information in the first memory and in the second memory when the control command includes control information defining an operation of the motor, and to generate a response signal including the control information stored in the first memory when the control command includes a command for verifying a communication state and transmit the response signal to the external device via the communication interface circuit; a control unit configured to read the control information from the second memory; and a drive signal generator.

    Motor driving circuit of EPB system for reducing dark current
    9.
    发明授权
    Motor driving circuit of EPB system for reducing dark current 有权
    用于降低暗电流的EPB系统的电机驱动电路

    公开(公告)号：US09425715B2

    公开(公告)日：2016-08-23

    申请号：US14535180

    申请日：2014-11-06

    Applicant: HYUNDAI MOBIS CO., LTD.

    Inventor： Hyeon Seok Jeong

    IPC: H02P1/00 ,  H02P3/02 ,  B60T11/10 ,  B60T7/12 ,  B60T7/10 ,  B60T13/74 ,  F16D65/14 ,  F16D121/24

    CPC classification number: H02P3/02 ,  B60T7/107 ,  B60T7/12 ,  B60T11/103 ,  B60T13/741 ,  B60T13/746 ,  F16D65/14 ,  F16D2121/24 ,  H02P7/285

    Abstract: Disclosed is a motor driving circuit of an EPB system which may reduce dark current. The present invention provides a motor driving circuit, including: a motor which includes two power input terminals to be applied with a battery power and a ground power; an H-bridge circuit which alternatively applies the battery power and the ground power to the two power input terminals in response to four motor driving signals applied from an ECU to drive the motor; an activating transistor which is connected between the battery power and the H-bridge circuit and is activated in response to a fail-safe control signal applied from the ECT to apply the battery power to the H-bridge circuit; and two monitoring units which are connected to corresponding input terminals of two power input terminals of the motor to distribute a voltage level which is applied to the motor and output monitoring signals.

    Abstract translation: 公开了一种可减少暗电流的EPB系统的电动机驱动电路。 本发明提供了一种电动机驱动电路，包括：电动机，其包括要施加电池电力和接地电力的两个电力输入端子; H桥电路，其响应于从ECU施加的四个电机驱动信号而将电池电力和接地电力施加到两个电力输入端子以驱动电动机; 激活晶体管，连接在电池电源和H桥电路之间，并且响应于从ECT施加的故障安全控制信号而被激活以将电池电力施加到H桥电路; 以及两个监控单元，其连接到电动机的两个电力输入端的相应输入端，以分配施加到电动机的电压电平并输出监控信号。

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