Electric motor/generator
    2.
    发明授权

    公开(公告)号:US12003147B2

    公开(公告)日:2024-06-04

    申请号:US17494261

    申请日:2021-10-05

    摘要: Certain embodiments are directed to devices, methods, and/or systems that use electrical machines. For example, certain embodiments are directed to an electrical machine comprising: at least one stator at least one module, the at least one module comprising at least one electromagnetic coil and at least one switch, the at least one module being attached to the at least one stator; at least one rotor with a plurality of magnets attached to the at least one rotor, wherein the at least one module is in spaced relation to the plurality of the magnets; and the at least one rotor being in a rotational relationship with the at least one stator, wherein the quantity and configuration of the at least one module in the electrical machine is determined based in part on one or more operating parameters; wherein the at least one module is capable of being independently controlled; and wherein the at least one module is capable of being reconfigured based at least in part on one or more of the following: at least one operating parameter during operation, at least one performance parameter during operation, or combinations thereof. Other embodiments are also disclosed.

    Operating an electric drive system with low efficiency

    公开(公告)号:US11932116B1

    公开(公告)日:2024-03-19

    申请号:US17944642

    申请日:2022-09-14

    申请人: BorgWarner Inc.

    摘要: A control system configured to control a rotating electrical machine of a battery electric vehicle (BEV), having one or more microprocessors that execute a low-efficiency mode of operation for the BEV, such that the low-efficiency mode of operation includes determining a high-efficiency mode current command corresponding to operation at a determined physical rotor angular velocity of a rotor of the rotating electrical machine at a commanded torque value, and increasing current supplied to the rotating electrical machine to a level corresponding to operation at an angular velocity higher than the determined physical angular velocity of the rotor at the commanded torque value.

    OUTDOOR POWER EQUIPMENT WITH DISTRIBUTED MOTOR CONTROLLERS

    公开(公告)号:US20220393621A1

    公开(公告)日:2022-12-08

    申请号:US17888813

    申请日:2022-08-16

    摘要: Outdoor power equipment includes a drive motor configured to operate a drive wheel, a drive motor controller configured to control the drive motor, a first chore motor configured to drive a first chore device, and a first chore motor controller communicatively coupled to the drive motor controller. The first chore motor controller is configured to receive an operational state of the drive motor including a drive motor speed from the drive motor controller and operate the first chore motor based on the operational state of the drive motor.

    Outdoor power equipment with distributed motor controllers

    公开(公告)号:US11437936B2

    公开(公告)日:2022-09-06

    申请号:US16512303

    申请日:2019-07-15

    摘要: An outdoor power equipment includes multiple motors and a controller module. The motors include a first motor and a second motor. The first motor is structured to operate a first component of the outdoor power equipment and the second motor is structured to operate a second component of the outdoor power equipment. The controller module includes multiple motor controllers structured to communicate via a network communication bus with each other and operate the first motor and the second motor to operate the first component and the second component based on the communication via the network communication bus.

    Analog-to-digital converter circuit, corresponding device and method

    公开(公告)号:US11265004B2

    公开(公告)日:2022-03-01

    申请号:US16667419

    申请日:2019-10-29

    发明人: Giuseppe D'Angelo

    IPC分类号: H03M1/10 H03M1/06 H02P6/14

    摘要: In an embodiment, a circuit includes first and second analog-to-digital conversion circuit path. The first analog-to-digital conversion circuit path is configured to provide first converted digital data from an analog input signal. The second analog-to-digital conversion circuit path is configured to provide second converted digital data from the analog input signal. A comparison circuit is configured to compare the first converted digital data with the second converter digital data and generate a fault based on the comparison to reveal a mismatch between the first and second converted digital data.

    Rotating electrical machine control device

    公开(公告)号:US11258391B2

    公开(公告)日:2022-02-22

    申请号:US16769466

    申请日:2019-01-17

    IPC分类号: H02P6/14 H02P25/22 H02P27/08

    摘要: Two inverters provided at both ends of each open-end winding, respectively, are appropriately controlled. A rotating electrical machine control device (1) that has at least two control schemes among pulse width modulation control, active short-circuit control, and rectangular-wave control, as control schemes for a first inverter (11) and a second inverter (12), and that can control the first inverter (11) and the second inverter (12) by control schemes which are independent of each other considers one of the plurality of control schemes as a first control scheme and one of the plurality of control schemes different than the first control scheme as a second control scheme, and has a control mode in which the first inverter (11) is controlled by the first control scheme and the second inverter (12) is controlled by the second control scheme.

    Variable speed generator/motor device

    公开(公告)号:US11223310B2

    公开(公告)日:2022-01-11

    申请号:US15734952

    申请日:2019-06-06

    摘要: In a variable speed generator/motor device including a variable frequency power converter, a direct current voltage device including a voltage type self-excited converter, an automatic voltage adjuster, and a converter current adjuster that controls unit converters, a first three-phase branch circuit is provided between the direct current voltage device and an alternating current system; a second three-phase branch circuit is provided between the variable frequency power converter and a three-phase alternating current synchronous machine; a first load switch is provided between the first three-phase branch circuit and the second three-phase branch circuit; a measurement current transformer is provided between the three-phase alternating current synchronous machine and the second three-phase branch circuit; when switching from a converter mode in which the variable frequency power converter drives the three-phase alternating current synchronous machine to generate power to a bypass mode, the first load switch is closed to stop a gate command to the unit converters; and when switching from the bypass mode to the converter mode, a current command value of the converter current adjuster is calculated from a current value of the measurement current transformer, the gate command to the unit converters is started, and the first load switch is opened.