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    System and method for reducing speed ripple of drive motor of electric vehicle
    1.
    发明授权
    System and method for reducing speed ripple of drive motor of electric vehicle 有权

    公开(公告)号：US10315530B2

    公开(公告)日：2019-06-11

    申请号：US15856889

    申请日：2017-12-28

    Applicant: Hyundai Motor Company ,  Kia Motors Corporation

    Inventor： Jae Sang Lim ,  Jeongwon Rho ,  Gu Bae Kang ,  Young Un Kim

    IPC: B60L3/00 ,  B60L15/08 ,  B60L15/20 ,  B60W20/17 ,  H02P27/08 ,  H02P29/50

    Abstract: A system and method for reducing drive motor speed ripple of an electric vehicle are provided. The system includes an inverter that converts DC power supplied from a battery to AC power and supplies the AC power to the drive motor by inverter switching. A resolver is configured to detect a speed of the drive motor and a position of a rotor, a signal generator includes a microcontroller that is configured to generate a square wave signal. An integrator is configured to convert the square wave to a sine wave, and apply a sine-wave excitation input signal to the resolver. Furthermore, a motor controller is configured to operate the inverter through a PWM signal, adjust the frequency of the excitation input signal to prevent the inverter switching frequency of the inverter and the peaks of an output voltage signal sampled for speed calculation from overlapping.

    CONTROL METHOD AND SYSTEM OF ELECTRIC VEHICLE
    2.
    发明申请
    CONTROL METHOD AND SYSTEM OF ELECTRIC VEHICLE 有权
    电动车控制方法与系统

    公开(公告)号：US20150175015A1

    公开(公告)日：2015-06-25

    申请号：US14530300

    申请日：2014-10-31

    Applicant: Hyundai Motor Company

    Inventor： Jae-Sang Lim ,  Seong Yeop Lim ,  Gu Bae Kang ,  Ji Wan Cha ,  Young Un Kim

    IPC: B60L11/18

    CPC classification number: B60L11/18 ,  B60K1/00 ,  B60L3/12 ,  B60L11/1803 ,  B60L15/025 ,  B60L15/2045 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/427 ,  B60L2240/429 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2260/44 ,  B60W10/00 ,  B60W20/00 ,  H02P21/22 ,  Y02T10/56 ,  Y02T10/643 ,  Y02T10/7005 ,  Y02T10/72 ,  Y02T10/7283

    Abstract: A control method of electric vehicle according to an exemplary embodiment of the present invention may include a battery supplying electricity, a motor receiving electricity from the battery and generating power, and a controller controlling the battery and the motor, wherein the controller executes instructions for: detecting a torque command, a motor speed, and a motor current; calculating a motor voltage from the motor current; determining whether voltage utilization according to a speed range of the motor is higher than a predetermined value; generating an operating point correcting function according to the motor speed when the voltage utilization is not higher than the predetermined value; calculating a current command according to the motor speed from the operating point correcting function; and outputting the calculated current command.

    Abstract translation: 根据本发明的示例性实施例的电动车辆的控制方法可以包括供电的电池，从电池接收电力并产生电力的电动机以及控制电池和电动机的控制器，其中控制器执行以下指令： 检测转矩指令，电机转速和电动机电流; 从电机电流计算电机电压; 确定根据电动机的速度范围的电压利用率是否高于预定值; 当电压利用率不高于预定值时，根据电动机速度产生工作点校正​​功能; 根据电机速度从工作点校正​​功能计算电流指令; 并输出计算出的电流指令。

    TORQUE CONTROL APPARATUS AND METHOD AND MOTOR CONTROLLER
    6.
    发明申请
    TORQUE CONTROL APPARATUS AND METHOD AND MOTOR CONTROLLER 有权
    扭矩控制装置和方法与电机控制器

    公开(公告)号：US20160114801A1

    公开(公告)日：2016-04-28

    申请号：US14870315

    申请日：2015-09-30

    Applicant: Hyundai Motor Company

    Inventor： Han Hee Park ,  Gu Bae Kang ,  Tae Il Yoo

    IPC: B60W30/18

    CPC classification number: B60W30/18 ,  H02P21/06 ,  H02P21/141 ,  H02P29/60 ,  Y02T10/7258

    Abstract: A torque control apparatus includes: a flux linkage estimator estimating a variation of flux linkage based on a difference between a current temperature of a motor measured by a temperature sensor and a predefined reference temperature; a torque compensation value calculator calculating a torque compensation value corresponding to the current temperature of the motor based on the estimated variation of flux linkage; and a torque compensator compensating for an error of required torque of a torque command by applying the calculated torque compensation value in response to a change in temperature of the motor and outputting a final torque command including the error-compensated required torque to a current map of a motor controller.

    Abstract translation: 扭矩控制装置包括：磁链估计器，其基于由温度传感器测量的电动机的当前温度与预定的参考温度之间的差来估计磁链的变化; 扭矩补偿值计算器，基于所估计的磁链的变化量，计算与所述电动机的当前温度对应的转矩补偿值; 以及扭矩补偿器，其通过根据电动机的温度变化应用所计算的转矩补偿值来补偿转矩指令的所需转矩的误差，并将包括误差补偿的所需转矩的最终转矩指令输出到 电机控制器。

    APPARATUS AND METHOD FOR CONTROLLING MOTOR
    8.
    发明申请
    APPARATUS AND METHOD FOR CONTROLLING MOTOR 有权
    控制电机的装置和方法

    公开(公告)号：US20160087561A1

    公开(公告)日：2016-03-24

    申请号：US14565720

    申请日：2014-12-10

    Applicant: HYUNDAI MOTOR COMPANY

    Inventor： Jeong Won Rho ,  Young Un Kim ,  Jae Sang Lim ,  Kil Young Youn ,  Ji Wan Cha ,  Seong Min M. Kim ,  Jin Ho Kim ,  Gu Bae Kang

    IPC: H02P6/16 ,  H02P6/00

    CPC classification number: H02P6/16 ,  H02P6/002 ,  H02P6/28 ,  H02P29/685

    Abstract: An apparatus and a method for controlling a motor are provided. The apparatus for controlling a motor includes a temperature sensor that is configured to detect a temperature of an inverter, and a variable amplifier that is configured to variably set an amplification gain that corresponds to the detected temperature of the inverter and amplify and output a resolver signal output from a resolver based on the variably set amplification gain, based on an excitation signal. A controller is then configured to estimate a position of a motor rotor based on the amplified resolver signal to calculate a flux angle and an excitation signal generator is configured to generate the excitation signal that corresponds to the calculated flux angle and output the generated excitation signal to the resolver.

    Abstract translation: 提供了一种用于控制电动机的装置和方法。 用于控制电动机的装置包括：温度传感器，其被配置为检测逆变器的温度;以及可变放大器，其被配置为可变地设置与所检测的逆变器的温度相对应的放大增益，并放大并输出解算器信号 基于可变设定的放大增益，基于激励信号从分解器输出。 然后，控制器被配置为基于放大的分解器信号来估计电动机转子的位置，以计算通量角，并且激励信号发生器被配置为产生对应于计算的磁通角的激励信号，并将产生的激励信号输出到 解析器。

    HYBRID VEHICLE AND METHOD FOR CONTROLLING THE SAME
    10.
    发明申请
    HYBRID VEHICLE AND METHOD FOR CONTROLLING THE SAME 审中-公开

    公开(公告)号：US20180354376A1

    公开(公告)日：2018-12-13

    申请号：US15848864

    申请日：2017-12-20

    Applicant: Hyundai Motor Company ,  Kia Motors Corporation

    Inventor： Jae Hwa Jeon ,  Sang Kyu Lee ,  Kil Young Youn ,  Seung Hyeon Bin ,  Gu Bae Kang

    IPC: B60L11/18

    Abstract: A plug-in vehicle capable of wired-charging a battery through a charging connector using an external charger and a method for controlling the same are provided. The method for controlling charging of a vehicle configured to perform a charging operation using external power includes determining whether a refrigerant circulation device operates normally and the amount of refrigerant is normal when a temperature sensor of a charger malfunctions. When the refrigerant circulation device operates normally and the amount of refrigerant is normal, a temperature of the charger is estimated using a temperature of a heat dissipation device through which the refrigerant passes and the output of the charger is adjusted based on the estimated temperature.

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