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    BACKLASH VIBRATION REDUCTION APPARATUS AND METHOD
    3.
    发明公开
    BACKLASH VIBRATION REDUCTION APPARATUS AND METHOD 审中-公开

    公开(公告)号：US20230226924A1

    公开(公告)日：2023-07-20

    申请号：US17967643

    申请日：2022-10-17

    Applicant: Hyundai Motor Company ,  Kia Corporation

    Inventor： Won Bin Lee ,  Seul Gi Lee ,  Soo Bang Lee ,  Sang Kook Woo

    IPC: B60L15/20 ,  H02P29/00

    CPC classification number: B60L15/20 ,  H02P29/0016 ,  B60L2240/12 ,  B60L2250/28

    Abstract: Disclosed are a backlash vibration reduction apparatus and method capable of sufficiently performing gear alignment even when torque is increased while a vehicle is driven within a low torque range, thereby minimizing rough vibration due to backlash. The backlash vibration reduction apparatus includes a correction determination unit configured to determine whether it is necessary to correct a torque gradient to be applied for an increase to target torque in the state in which the current torque of a vehicle is retained within a predetermined low torque range and a torque gradient correction unit configured to determine a corrected torque gradient in which a torque increase rate per hour is reduced and a torque increase time period is extended by multiplying a correction factor by a first torque gradient as a torque gradient that increases the current torque upon determining that it is necessary to correct the torque gradient.

    Motor speed control circuit and control method thereof
    5.
    发明授权
    Motor speed control circuit and control method thereof 有权

    公开(公告)号：US09871477B2

    公开(公告)日：2018-01-16

    申请号：US14936694

    申请日：2015-11-10

    Applicant: ANPEC ELECTRONICS CORPORATION

    Inventor： Ming-Jung Tsai

    IPC: H02P7/29 ,  G05D23/19 ,  G06F1/20

    CPC classification number: H02P7/29 ,  H02P6/06 ,  H02P29/0016

    Abstract: A motor speed control circuit including a voltage-dividing module, a first analog-to-digital converter, a second analog-to-digital converter and an operation module. The voltage-dividing module includes a first resistor unit and a second resistor unit. The first analog-to-digital converter receives a supply voltage and converts the supply voltage into a digital supply voltage. The second analog-to-digital converter receives a divided voltage generated by the voltage-dividing module, and converts the divided voltage into a digital divided voltage. The divided voltage is associated with a resistance ratio between the first resistor unit and the second resistor unit. The operation module receives the digital divided voltage and determines a motor speed curve according to the resistance ratio. The operation module generates a first pulse width modulation signal according to the motor speed curve and the digital supply voltage to drive a motor.

    Adjustment device for controlling electric drive of an elevator, electric drive of an elevator and method for controlling electric drive of an elevator
    6.
    发明授权
    Adjustment device for controlling electric drive of an elevator, electric drive of an elevator and method for controlling electric drive of an elevator 有权
    用于控制电梯的电力驱动的调节装置，电梯的电力驱动和用于控制电梯的电力驱动的方法

    公开(公告)号：US08763760B2

    公开(公告)日：2014-07-01

    申请号：US13608502

    申请日：2012-09-10

    Applicant: Lauri Stolt ,  Antti Kallioniemi ,  Tuukka Kauppinen

    Inventor： Lauri Stolt ,  Antti Kallioniemi ,  Tuukka Kauppinen

    IPC: B66B1/28

    CPC classification number: B66B1/30 ,  H02P29/0016 ,  H02P29/02

    Abstract: An adjustment device for controlling the electric drive of an elevator in connection with a voltage reduction of the supplying network is disclosed. The electric drive of an elevator includes an electric motor and a power supply apparatus of for adjusting the supply voltage of the electric motor. The adjustment device includes a device configured to control the power supply apparatus and also a speed regulator for adjusting the speed of the electric motor. The adjustment device is arranged to determine the output voltage of the power supply apparatus of the electric motor in relation to the permitted maximum value of the output voltage, and the adjustment device is arranged to interrupt the operation of the speed regulator but to continue the operation of the power supply apparatus of the electric motor when the output voltage of the power supply apparatus of the electric motor reaches the permitted maximum value.

    Abstract translation: 公开了一种用于控制与供电网络的电压降低有关的电梯的电力驱动的调节装置。 电梯的电力驱动器包括用于调节电动机的电源电压的电动机和电源装置。 调整装置包括：被配置为控制供电装置的装置，以及用于调节电动机速度的速度调节器。 调整装置被配置为相对于输出电压的允许最大值确定电动机的供电装置的输出电压，并且调节装置被设置为中断速度调节器的操作，但是继续操作 当电动机的电源装置的输出电压达到允许的最大值时，电动机的供电装置。

    ACTUATOR
    7.
    发明申请
    ACTUATOR 有权
    执行机构

    公开(公告)号：US20120235618A1

    公开(公告)日：2012-09-20

    申请号：US13500209

    申请日：2011-03-31

    Applicant: Masakazu Mori ,  Daisuke Kukita ,  Seiya Shimada

    Inventor： Masakazu Mori ,  Daisuke Kukita ,  Seiya Shimada

    IPC: H02K23/00

    CPC classification number: H02P29/0016 ,  H02P23/20

    Abstract: There is provided an actuator in which an worm is rotationally driven by an electric motor, and in which an angular velocity of the electric motor is repeatedly fluctuated so that the rotation of the worm is carried out as if the worm is oscillated in the rotational direction thereof, to thereby decrease contact friction of the worm against a worm wheel, resulting in an improvement of an efficiency of force transmission of the worm gear mechanism.Although the electric motor 20 is inherently controlled so that an output shaft 21 thereof is rotated at a target velocity based on a velocity command, a drive control section 40 controls the angular velocity of the output shaft 41 so as to be repeatedly increased and decreased with respect to the target velocity so that the angular velocity of the worm 11 is finely fluctuated, and thus the fluctuation of the angular velocity may be regarded as a fine general-oscillation of the rotating worm 11 in the rotational direction, whereby friction between the gear faces of the worm 11 and the gear faces of the worm wheel 12 can be decreased, resulting in an improvement of the efficiency of force transmission of the worm gear, and in increase in a driving force and a torque value to be transmitted to an object to be driven by the actuator.

    Abstract translation: 提供了一种致动器，其中蜗杆由电动机旋转驱动，并且其中电动机的角速度反复波动，使得蜗杆的旋转如同蜗杆沿旋转方向振动地进行 从而减小蜗杆与蜗轮的接触摩擦，从而提高蜗轮传动机构的力传递效率。 虽然电动机20被固有地控制，使得其输出轴21基于速度指令以目标速度旋转，但驱动控制部分40控制输出轴41的角速度，以便随着 相对于目标速度，使得蜗杆11的角速度微小地波动，因此角速度的波动可以被认为是旋转蜗杆11沿旋转方向的微小的一般振荡，由此齿轮之间的摩擦 可以减小蜗杆11的表面和蜗轮12的齿轮面，从而提高蜗轮的力传递效率，并且增加驱动力和扭矩值以传递给物体 由致动器驱动。

    Safety garage door
    8.
    发明申请
    Safety garage door 失效

    公开(公告)号：US20060028163A1

    公开(公告)日：2006-02-09

    申请号：US11243990

    申请日：2005-10-06

    Applicant: Duke Chen

    Inventor： Duke Chen

    IPC: H02P7/00

    CPC classification number: E05F15/41 ,  E05F15/00 ,  E05F15/40 ,  E05Y2400/322 ,  E05Y2400/458 ,  E05Y2400/56 ,  E05Y2400/822 ,  E05Y2900/106 ,  H02P29/0016

    Abstract: A safety garage door apparatus includes a garage door, two tracks, a controller, a linking device and a detecting device. Two tracks are installed on two sides of the garage door, respectively. The controller includes a motor, a driving device connected to the motor, and a microprocessor. The linking device includes a rail, a rack slidably mounted in the rail, and a linkage with one end connected to the rack and the other end connected to the garage door. The rack is connected with the driving device. The detecting device is mounted in the controller to continually detect a location of the rack so that a moving speed of the rack is determined by the microprocessor to compare with a predetermined rate to determined whether an operation of opening or closing the garage door needs to be stopped or reversed, or a maintenance of the garage door apparatus is needed.

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