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公开(公告)号：US20220255489A1
公开(公告)日：2022-08-11
申请号：US17172853
申请日：2021-02-10
IPC分类号： H02P29/028 , H02P27/06
摘要： A motor controller for an electric motor is provided. The motor controller includes an inverter configured to supply current to stator windings of the electric motor. The motor controller further includes a plurality of sensors configured to generate a sensor signal in response to detecting a parameter. The sensor signal represents a measured parameter. The motor controller further includes a processor coupled in communication with the inverter and with the plurality of sensors. The processor is configured to, in a first mode, transmit a control signal to the inverter to operate the electric motor at a first frequency. The processor is further configured to receive the sensor signal from the plurality of sensors. The processor is further configured to determine a first fault condition is present at the electric motor based on the measured parameter represented by the sensor signal.
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公开(公告)号：US11128250B2
公开(公告)日：2021-09-21
申请号：US16862173
申请日：2020-04-29
摘要： An electric machine includes a motor assembly including a motor and a motor controller coupled to the motor and configured to control operation of the motor. The electric machine also includes a motor housing defining an interior space and enclosing the motor assembly within the interior space. The electric machine further includes an electric machine housing. The motor housing is enclosed within the electric machine housing. The electric machine also includes an NFC antenna communicatively coupled to the motor controller and mounted such that an antenna range of the NFC antenna extends on an exterior of the electric machine housing. The NFC antenna is configured to receive a signal relating to a user command from a handheld device and relay the signal to the motor controller. The motor controller is configured to adjust an operational parameter of the motor based at least partially on the user command.
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公开(公告)号：US20200259446A1
公开(公告)日：2020-08-13
申请号：US16862173
申请日：2020-04-29
摘要： An electric machine includes a motor assembly including a motor and a motor controller coupled to the motor and configured to control operation of the motor. The electric machine also includes a motor housing defining an interior space and enclosing the motor assembly within the interior space. The electric machine further includes an electric machine housing. The motor housing is enclosed within the electric machine housing. The electric machine also includes an NFC antenna communicatively coupled to the motor controller and mounted such that an antenna range of the NFC antenna extends on an exterior of the electric machine housing. The NFC antenna is configured to receive a signal relating to a user command from a handheld device and relay the signal to the motor controller. The motor controller is configured to adjust an operational parameter of the motor based at least partially on the user command.
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公开(公告)号：US20200217548A1
公开(公告)日：2020-07-09
申请号：US16242738
申请日：2019-01-08
发明人： Bin Yang , Brian Lee Beifus , Roger Carlos Becerra
摘要： A motor controller for an electric motor for driving a blower to generate an airflow. The motor controller includes a processor and a drive circuit configured to regulate power supplied to the motor to turn the blower. The processor computes a system resistance for the blower based on a fixed set point for a first control parameter and a feedback parameter. The processor receives an airflow rate demand value and computes an operating set point for a second control parameter based on the system resistance and the airflow rate demand value. The processor controls the drive circuit based on the operating set point to supply electrical power to the electric motor and to operate the blower to generate the airflow.
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公开(公告)号：US20190326840A1
公开(公告)日：2019-10-24
申请号：US16416785
申请日：2019-05-20
摘要： A motor controller for an electric motor is provided. The electric motor is configured to drive a blower to generate an airflow. The motor controller includes a memory and a processor coupled thereto. The memory is configured to store a speed-to-airflow ratio associated with an airflow restriction on the blower. The processor is configured to receive a command for a calibrating airflow and operate the electric motor in a constant airflow mode to generate the calibrating airflow at a calibrating speed. The processor is further configured to write the calibrating speed and the calibrating airflow to the memory as the speed-to-airflow ratio.
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公开(公告)号：US10294950B2
公开(公告)日：2019-05-21
申请号：US15595420
申请日：2017-05-15
摘要： A motor controller for an electric motor is provided. The electric motor is configured to drive a blower to generate an airflow. The motor controller includes a memory and a processor coupled thereto. The memory is configured to store a speed-to-airflow ratio associated with an airflow restriction on the blower. The processor is configured to receive a command for a calibrating airflow and operate the electric motor in a constant airflow mode to generate the calibrating airflow at a calibrating speed. The processor is further configured to write the calibrating speed and the calibrating airflow to the memory as the speed-to-airflow ratio.
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公开(公告)号：US20190149080A1
公开(公告)日：2019-05-16
申请号：US16227859
申请日：2018-12-20
摘要： An electric machine includes a motor assembly including a motor controller including an NFC tuned circuit. The electric machine also includes a motor housing defining an interior space and enclosing the motor assembly within the interior space. The electric machine further includes an electric machine housing. The motor housing is enclosed within the electric machine housing. The electric machine also includes an NFC antenna mounted within the electric machine housing and configured to emit a magnetic field at a selected frequency. The magnetic field is configured to induce an electric current in the NFC tuned circuit. The electric machine further includes a memory configured to store information included in signals transmitted between the NFC antenna and the NFC tuned circuit via the magnetic field.
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公开(公告)号：US20220316744A1
公开(公告)日：2022-10-06
申请号：US17223417
申请日：2021-04-06
发明人： Bin Yang , Brian Lee Beifus , Roger Carlos Becerra
摘要： A control system for an electric motor configured to drive a fluid-moving apparatus. The control system includes a drive circuit and a processor coupled in communication with the drive circuit. The processor is configured to control the drive circuit to operate the electric motor at a plurality of control values of a control parameter and determine, for each of the plurality of control values, a fluid-flow value and a feedback value, the feedback value corresponding to a feedback parameter, compute a mathematical relationship between fluid-flow rate and one of the control parameter or the feedback parameter, receive a fluid-flow rate demand value, compute an operating setpoint for the control parameter based on the fluid-flow rate demand value and the computed mathematical relationship, and control the drive circuit to operate the electric motor at the operating setpoint.
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公开(公告)号：US20220062487A1
公开(公告)日：2022-03-03
申请号：US17320908
申请日：2021-05-14
发明人： Roger Carlos Becerra , William Stuart Gatley , William Arthur Ziegler , Mohamad Khalil Dahouk , Michael David Smith , Audwin William Cash , Zachary Joseph Stauffer , Brian Lee Beifus , John Carl Kunze , Ramin Rezaei , Joseph A. Henry
摘要： One aspect of the disclosure includes a fluid moving system. The fluid moving system includes a fluid moving apparatus configured to convey a fluid through a housing from an inlet to an outlet. The fluid moving system includes an active cleaning device configured to neutralize or remove at least a portion of an undesired matter from the fluid conveyed through the housing. The fluid moving system includes an electric motor including a rotor coupled to the fluid moving apparatus and configured to turn the fluid moving apparatus upon application of electric power to a stator of the electric motor. The fluid moving system includes a motor controller communicatively coupled to the electric motor and configured to control at least one of a speed output or a torque output thereof.
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公开(公告)号：US11101759B2
公开(公告)日：2021-08-24
申请号：US16416785
申请日：2019-05-20
摘要： A motor controller for an electric motor is provided. The electric motor is configured to drive a blower to generate an airflow. The motor controller includes a memory and a processor coupled thereto. The memory is configured to store a speed-to-airflow ratio associated with an airflow restriction on the blower. The processor is configured to receive a command for a calibrating airflow and operate the electric motor in a constant airflow mode to generate the calibrating airflow at a calibrating speed. The processor is further configured to write the calibrating speed and the calibrating airflow to the memory as the speed-to-airflow ratio.
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