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公开(公告)号：US12126296B2
公开(公告)日：2024-10-22
申请号：US17958773
申请日：2022-10-03
发明人： Takashi Kataoka
CPC分类号： H02P3/22 , G08B21/185
摘要： A motor control apparatus includes: a motor; an inverter circuit configured to drive the motor; a first wiring connecting the motor and the inverter circuit; a second wiring connecting the motor and the inverter circuit; a first sensor configured to detect a first current flowing through the first wiring; a second sensor configured to detect a second current flowing through the second wiring; and a dynamic braking circuit, and the dynamic braking circuit is connected between the first sensor and the motor and between the second sensor and the inverter circuit.
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公开(公告)号：US20240313672A1
公开(公告)日：2024-09-19
申请号：US18608403
申请日：2024-03-18
发明人： Parminder SANGHA , Andrew MCLEAN
IPC分类号： H02P3/22
CPC分类号： H02P3/22
摘要： A controller for an aircraft assembly. The aircraft assembly includes a permanent magnet motor. The controller is configured to control the permanent magnet motor according to a damping mode. In the damping mode the controller receives electrical energy from the permanent magnet motor, wherein the electrical energy is produced as a result of kinetic energy in the aircraft assembly. The controller uses the electrical energy to send a first signal to control a transfer of electrical energy from the permanent magnet motor to a damping component to provide damping to the permanent magnet motor.
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公开(公告)号：US20240189985A1
公开(公告)日：2024-06-13
申请号：US18444944
申请日：2024-02-19
发明人： Kyle Rogers
摘要： An electronic circuit comprises a charge storing component, a set of one or more switching components coupled to the charge storing component, and an additional switching component coupled to each of the one or more switching components in the set. The additional switching component is configured to operate in a first state or a second state based on a received current or voltage. The first state prevents current to flow from the charge storing component to each of the one or more switching components in the set and the second state allows current to flow from the charge storing component to each of the one or more switching components in the set.
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公开(公告)号：US11938628B2
公开(公告)日：2024-03-26
申请号：US17530712
申请日：2021-11-19
发明人： Kyle Rogers
摘要： An electronic circuit comprises a charge storing component, a set of one or more switching components coupled to the charge storing component, and an additional switching component coupled to each of the one or more switching components in the set. The additional switching component is configured to operate in a first state or a second state based on a received current or voltage. The first state prevents current to flow from the charge storing component to each of the one or more switching components in the set and the second state allows current to flow from the charge storing component to each of the one or more switching components in the set.
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公开(公告)号：US20240079977A1
公开(公告)日：2024-03-07
申请号：US18454246
申请日：2023-08-23
发明人： Wenkang Tong
摘要： A power tool includes: an electric motor including a rotor and multi-phase stator windings; multiple power switches arranged between a power supply and the electric motor and including multiple high-side switches and multiple low-side switches; a parameter detection device configured to detect an electrical parameter of the electric motor; and a controller configured to output a control signal to control the multiple power switches and at least configured to control the electric motor to brake. The controller is further configured to: determine, according to the electrical parameter, a brake timing for braking the electric motor and start controlling the electric motor to brake when the brake timing arrives.
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6.发明公开公开(公告)号：US20240039432A1
公开(公告)日：2024-02-01
申请号：US18018305
申请日：2021-07-23
申请人： JTEKT EUROPE
发明人： Arnaud BOUCHET , Pierre LARMINY , Roch MONNET
摘要： A method for magnetic braking of a steering column included in a steering system of a vehicle to facilitate installation and uninstallation of the driver in the vehicle and to protect angular mechanical stops arranged on either side of the steering column, said vehicle including a vehicle engine, said steering system including at least: the steering column connected to a steering wheel, the angular mechanical stops arranged on either side of the steering column, a force feedback module fixed to the steering column, said force feedback module including an electric motor, a reducer and a torque and/or angle sensor, said method including the magnetic braking of the steering column connected to the steering wheel applied by the electric motor of the force feedback module when said electric motor of the force feedback module is not powered.
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公开(公告)号：US20230405875A1
公开(公告)日：2023-12-21
申请号：US18032240
申请日：2021-09-20
申请人： HUSQVARNA AB
发明人： Magnus Rosén , Victor Johansson , David Dufke , Johan Berg
CPC分类号： B28D7/005 , B28D1/04 , H02P3/22 , H02P21/143
摘要： A hand-held electrically powered cut-off tool (100) for cutting concrete and stone by a rotatable cutting disc (105), the cut-off tool (100) comprising an electric motor (130) arranged to be controlled by a control unit (110) via a motor control interface (120), wherein the control unit (110) is arranged to obtain data indicative of an angular velocity of the cutting disc (105), and to detect a kickback condition based on a decrease in angular velocity, wherein the control unit (110) is arranged to control an electromagnetic braking of the electric motor (130) in response to detecting a kickback condition, wherein the control unit (110) is arranged to determine an angular acceleration associated with the electric motor (130), and to detect the kickback condition based on a comparison between the determined angular acceleration and a configurable detection threshold.
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公开(公告)号：US20230396056A1
公开(公告)日：2023-12-07
申请号：US18032260
申请日：2021-09-13
申请人： HUSQVARNA AB
发明人： Magnus Rosén , Victor Johansson , David Dufke , Johan Berg
CPC分类号： H02H7/0854 , H02P6/182 , H02P3/22 , H02K7/145 , B27G19/04
摘要： A hand-held electrically powered cut-off tool (100) for cutting concrete and stone by a rotatable cutting disc (105), the cut-off tool (100) comprising an electric motor (130) arranged to be controlled by a control unit (110) via a motor control interface (120), wherein the control unit (110) is arranged to obtain data indicative of an angular velocity of the cutting disc (105), and to detect a kickback condition based on a decrease in angular velocity, and wherein the control unit (110) is arranged to electromagnetically brake the electric motor (130) in response to detecting a kickback condition.
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公开(公告)号：US11750139B2
公开(公告)日：2023-09-05
申请号：US17627916
申请日：2020-06-25
发明人： Wolfgang Halder , Thomas Kühefuß , Georg Pfeiffer
IPC分类号： H02P29/00 , H02P29/032 , H02P29/68 , H02P3/22 , H02P27/08
CPC分类号： H02P29/0022 , H02P3/22 , H02P27/085 , H02P29/032 , H02P29/68 , H02P2201/09
摘要： In a method and system for operating a system having an energy storage device and a resistor, and in order to discharge the energy storage device, an electric power that is constant over time is continuously supplied to the resistor, e.g., during a time period, e.g., until the resistor has practically been fully discharged, the time period, e.g., being greater than the time constant of the temperature rise of the resistor induced by a continuous electric power that is constant over time and supplied to the resistor.
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公开(公告)号：US11654991B2
公开(公告)日：2023-05-23
申请号：US17251691
申请日：2019-06-05
申请人： EBIKELABS
发明人： Theophile Alary , Maël Bosson , Raphaël Marguet
摘要： The invention relates to a method for deterring theft of a vehicle having a three-phase electric motor without a freewheel (10), comprising the steps of using the motor in a generator mode to power a motor control circuit (14) in an initial phase of rotating the motor through motion of the vehicle; and, when the power supply level of the control circuit reaches a first threshold (Vmin), connecting by the control circuit first and second phases (b, c) of the three-phase motor continuously to a first power supply line (Vss), whereby the first and second phases are short-circuited and cause an increased braking force of the motor. During this time, the third phase of the motor may be connected to continue to supply energy to the control circuit.
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