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公开(公告)号：US12126291B2
公开(公告)日：2024-10-22
申请号：US17767826
申请日：2020-10-20
IPC分类号： H02P1/02 , B60H1/32 , H02P29/024
CPC分类号： H02P29/024 , B60H1/3205
摘要： Provided is a method for determining the generation source of ripple voltage when abnormal ripple voltage is detected. The control device is for an electric compressor, the control device comprising: a detection unit that detects ripple voltage; a judgment unit that judges whether the ripple voltage is abnormal based on the value of the ripple voltage; and a cause determination unit that determines whether the cause of the abnormality is the electric compressor or some other external device, based on the control result of the electric compressor.
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公开(公告)号：US12021444B2
公开(公告)日：2024-06-25
申请号：US17501096
申请日：2021-10-14
发明人： Huaqiang Li , Joseph Paul Uphaus
IPC分类号： H02M1/32 , H02H7/122 , H02J9/06 , H02M1/00 , H02M5/458 , H02M7/00 , H02M7/493 , H02M7/5387 , H02P1/02 , H02P7/29 , H02P27/04
CPC分类号： H02M1/32 , H02H7/1225 , H02J9/06 , H02M5/4585 , H02M7/003 , H02M7/493 , H02M7/53871 , H02P1/029 , H02P7/2913 , H02P27/04 , H02M1/0085 , H02M1/325 , H02M5/458
摘要： A compact motor control system for selectively controlling power from a power source to a load includes a motor switching assembly having a solid state contactor with a plurality of solid state switches. The motor switching assembly also includes at least one direct current (DC) link coupled to the solid state contactor and redundant first and second inverters coupled to the at least one DC link. The motor switching assembly further includes a first relay coupled between the solid state contactor and an input of the inverter and a second relay coupled between the solid state contactor and an input of the second inverter. In addition, the motor control system includes a control system programmed to control the motor switching assembly to selectively supply power to the load from the power source.
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公开(公告)号：US11948757B2
公开(公告)日：2024-04-02
申请号：US16962243
申请日：2019-01-07
CPC分类号： H01H1/0015 , G01R31/3278 , H01H50/546 , H02P1/022 , H01H2071/044
摘要： A contactor includes: at least one moveable contact mounted on a contact carrier; at least one stationary contact mounted on a housing; an electromagnet arranged to cause the contact carrier to move relative to the housing between a first position and a second position, and thus to cause the at least one moveable contact to travel from a contacts open position to a contacts closed position with respect to the at least one stationary contact; a sensor coupled to one of the contact carrier and the housing and arranged to detect an intermediate position, in between the first position and the second position, at which the housing and the contact carrier are located at a given moment in time as the contact carrier moves relative to the housing between the first position and the second position; and a controller connected to receive the signals from the sensor.
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公开(公告)号：US20240072690A1
公开(公告)日：2024-02-29
申请号：US18453403
申请日：2023-08-22
摘要： Systems and methods for power tools having touch sensors. One power tool includes a housing, a motor, a first handle, a second handle, and a controller. The first handle includes a user input configured to be actuated by a first hand of a user. The second handle includes a touch sensor configured to detect a second hand of the user on the second handle. The controller is configured to determine whether the user input is actuated, determine whether the second hand of the user is on the second handle, control, in response to both the user input being actuated and the second hand of the user being on the second handle, the motor to drive the motor, and prohibit, in response to the user input being actuated and the second hand of the user not being on the second handle, operation of the motor.
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公开(公告)号：US20240056002A1
公开(公告)日：2024-02-15
申请号：US18267659
申请日：2021-12-16
申请人： Intex Marketing Ltd.
发明人： Zhi Xiong Huang , Ying Biao Zhang
IPC分类号： H02P1/02 , H02P29/024 , H02P7/29 , H02P1/18
CPC分类号： H02P1/021 , H02P29/027 , H02P7/29 , H02P1/18
摘要： A control circuit and method for DC motors is disclosed in the present application. The control circuit may comprise a voltage monitoring unit for monitoring the output voltage of the DC power supply, a switching circuit for controlling the operation of the DC motor, and a PWM signal output unit to output PWM signal for controlling the switching circuit. The PWM signal output unit may be configured to regulate the duty cycle of the output PWM signal based on the results of the voltage monitoring unit. In this way, motors with different resistances may work continuously in a stabilized state. Also, it may detect when a load like motor is heavy loaded or overloaded, stop motor from starting, and avoid overtime working due to the drop of supply voltage damaging the load like motor. When the voltage of power supply is higher than the rated voltage of the motor, it may regulate the input voltage value of power supply to avoid the increase of excitation current of motor with the increase of the applied voltage, thereby avoid the loss of iron core.
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公开(公告)号：US20230344379A1
公开(公告)日：2023-10-26
申请号：US18333346
申请日：2023-06-12
摘要： Controllers for controlling hybrid motor drive circuits configured to drive a motor are provided herein. A controller is configured to drive the motor using an inverter when a motor commanded frequency is not within a predetermined range of line input power frequencies, and couple line input power to an output of the inverter using a first switch device when the motor commanded frequency is within the predetermined range of line input power frequencies.
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公开(公告)号：US11682988B2
公开(公告)日：2023-06-20
申请号：US17685258
申请日：2022-03-02
发明人： Libo Zheng , Min Zhang
摘要： A method is described for controlling an electric motor having a rotor. The method is carried out after a shutdown of the motor has been initiated. The method includes starting a timer in a motor controller, performing regenerative braking to recapture kinetic energy from the rotor as electrical energy, and using the recaptured electrical energy from the regenerative braking to power the motor controller. If the timer in the motor controller exceeds a predetermined timer value, a flag is set in memory in the motor controller to indicate that the motor has stopped.
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公开(公告)号：US11577850B2
公开(公告)日：2023-02-14
申请号：US16836050
申请日：2020-03-31
发明人： Jing Liu , Pengsheng Jing , Hai Hu , Yingjian Liu
摘要： The application relates to an aircraft, a method, an apparatus and a computer readable storage medium for controlling the aircraft with at least one sensor arranged thereon, the method including detecting a motor state of the aircraft, acquiring at least one sensing data of the at least one sensor, and controlling the aircraft to perform a startup operation or a shutdown operation according to the motor state and the at least one sensing data, so that the aircraft can be autonomously controlled to perform the startup operation or the shutdown operation, and the user experience is improved.
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公开(公告)号：US11458931B2
公开(公告)日：2022-10-04
申请号：US16872411
申请日：2020-05-12
发明人： Manabu Morita , Shigekazu Sugimoto
IPC分类号： B60S1/08 , H02P1/18 , B60R16/033 , H02J9/06 , H02P1/02
摘要： When a power failure does not occur, power supply to a first terminal of a wiper motor is performed by a first battery, and power supply to a second terminal of the wiper motor is performed by a second battery. When a power failure occurs in one of the first battery or the second battery, power supply to the wiper motor is performed by the other battery that is not in power failure.
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公开(公告)号：US11453435B2
公开(公告)日：2022-09-27
申请号：US16553792
申请日：2019-08-28
申请人： JTEKT CORPORATION
发明人： Tomohiro Niwa , Satoru Mikamo , Masashi Fuji
摘要： A vehicle control apparatus capable of protecting a pre-charge circuit is provided. When a voltage has entered an operating voltage range, a microcomputer determines whether a preset period has elapsed from then. Upon determining that the preset period has elapsed, the microcomputer starts initial check. To carry out the initial check, the microcomputer starts charging a capacitor for power supply stabilization of a drive circuit by turning on the pre-charge circuit and, when the charging of the capacitor is completed, turns on a power supply relay provided on a power supply line that connects between a battery and the drive circuit.
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