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公开(公告)号：US12132432B2
公开(公告)日：2024-10-29
申请号：US18074233
申请日：2022-12-02
申请人： BYD COMPANY LIMITED
发明人： Heping Ling , Lei Yan , Yong Xiong , Chen Hong , Junwei Zhang
摘要： An energy conversion device is provided, including: a first electrical motor control circuit, where the first electrical motor control circuit is connected with a battery pack; a second electrical motor control circuit, where the second electrical motor control circuit is connected with the first electrical motor control circuit in parallel; and a controller, configured to: when operating in a first control mode, control the first electrical motor control circuit to charge and discharge the battery pack to heat the battery pack, and control the second electrical motor control circuit to output torque.
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公开(公告)号：US12126294B2
公开(公告)日：2024-10-22
申请号：US18059887
申请日：2022-11-29
发明人： Steven J. Goldman
CPC分类号： H02P29/68 , G01K15/005
摘要： Apparatus and associated methods relate to a post temperature calibration translation circuit (PTCTC) configured to generate a signal corresponding to a predetermined temperature voltage translation relationship (TVTR). In an illustrative example, the PTCTC may be coupled to a motor controller including a control logic to regulate a power input to a motor based on the TVTR. The PTCTC further includes an input port configured to receive a temperature sensor output based on a predetermined transfer function. At least one analog corrective translation circuit (ACTC), for example, may generate temperature input signals to the motor power controller based on the temperature sensor output. The temperature input signals are generated based on a calibrated transfer function such that the temperature input signals substantially match an output according to the TVTR. Various embodiments may advantageously avoid modification of the control logic when the predetermined transfer function is altered.
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公开(公告)号：US12123900B2
公开(公告)日：2024-10-22
申请号：US17443998
申请日：2021-07-29
IPC分类号： G01R21/06 , G01K7/22 , G01K7/42 , G01K13/00 , G01R21/14 , H02P27/06 , H02P27/08 , H02P29/68 , G05F3/02 , H02M1/00 , H02M1/32 , H02M5/293 , H02M5/458 , H02M7/00 , H02M7/5387 , H02P21/22
CPC分类号： G01R21/14 , G01K7/22 , G01K7/427 , G01K13/00 , G01R21/06 , H02P27/06 , H02P27/08 , H02P29/68 , G05F3/02 , H02M1/00 , H02M1/327 , H02M5/293 , H02M5/458 , H02M7/003 , H02M7/53871 , H02P21/22
摘要： A power conversion device includes a power conversion circuit including a temperature sensor configured to detect a temperature at a sensor position and a switch configured to switch a connection on and off at a switch position separated from the sensor position; a loss calculation processing circuitry configured to calculate a power loss in the switch; a loss correction processing circuitry configured to correct a calculation result of the power loss on the basis of a detection result of the temperature at the sensor position; a temperature correction processing circuitry configured to correct the detection result of the temperature on the basis of the calculation result of the power loss; and a temperature estimation processing circuitry configured to estimate a temperature at the switch position on the basis of a corrected calculation result of the power loss and a corrected detection result of the temperature.
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公开(公告)号：US12095398B2
公开(公告)日：2024-09-17
申请号：US17637544
申请日：2020-08-05
发明人： Lukas Haderer
摘要： A method for calculating a temperature of an electric drive unit includes calculating a temperature model output variable (ym) using an input variable (u) and a temperature model, assigning the temperature model output variable (ym) to a system observer, and measuring an actual temperature (y) using a temperature detection element. A model state variable (xm) is regulated and outputted based on an output variable difference (Δy) between the actual temperature (y) and the output variable (ym) using the system observer. A fault mode or a normal mode of the temperature detection element is indicated using a detection state signal (s1). Depending on the signal (s1), the system observer is switched between a control mode, in which the model state variable (xm) is controlled depending on the output variable difference (Δy), and a throughput mode, in which the model state variable (xm) is calculated independently of the actual temperature (y).
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公开(公告)号：US20240250633A1
公开(公告)日：2024-07-25
申请号：US18099599
申请日：2023-01-20
发明人： Jogendra Singh Thongam , Baoming Ge , Fan Wang , Papiya Bagchi , Serdar Hakki Yonak , Rimma Paransky
IPC分类号： H02P29/68
CPC分类号： H02P29/68
摘要： An electric drive system includes a power electronics module with a DC-DC converter and an inverter. The power electronics modules include a plurality of Silicon Carbide switches. Dynamic models are used to estimate the temperatures of the switch junctions and of the Direct Bond Copper substrate. The dynamic models rely on a coolant flowrate value from a coolant system. If the estimate of the substrate temperature differs substantially from a measured substrate temperature, a controller concludes that the coolant system is not delivering the stated flow rate of coolant and takes remedial action such as reducing motor torque to zero.
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公开(公告)号：US12047027B2
公开(公告)日：2024-07-23
申请号：US17782829
申请日：2020-12-03
CPC分类号： H02P29/68 , H02J3/36 , H02J3/381 , H02M1/0009 , H02M1/32 , H02M7/537 , H02J2300/28 , H02P2101/15
摘要： A method of protecting a converter of a wind turbine and a respective protection system are provided. The converter is coupled to a generator of the wind turbine to perform conversion of electrical power produced by the generator, the converter including plural semiconductor components that are operational to provide the conversion of the electrical power. The method includes the performing of a step of estimating a junction temperature of at least one of the semiconductor components by determining a current in the converter associated with power loss in one or more of the semiconductor components; estimating power loss associated with the one or more semiconductor components based on the determined current and on a state of the one or more semiconductor components; and using a thermal model to estimate the junction temperature of the semiconductor components based on the estimated power loss. The estimating step is repeatedly performed.
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公开(公告)号：US11979105B2
公开(公告)日：2024-05-07
申请号：US17700295
申请日：2022-03-21
申请人： HL MANDO CORPORATION
发明人： Taesik Kim
CPC分类号： H02P29/20 , B62D5/0463 , H02P29/64 , H02P29/68
摘要： Disclosed are an apparatus and method for controlling a motor. An exemplary embodiment of the present disclosure provides an apparatus for controlling an operation of a motor, the apparatus including: a first motor control unit connected to a first winding part of the motor and configured to control the operation of the motor; and a second motor control unit connected to a second winding part of the motor and configured to control the operation of the motor, in which the first motor control unit turns on or off current paths formed between the first motor control unit and the motor by controlling switches included in the first motor control unit, and the second motor control unit turns on or off current paths formed between the second motor control unit and the motor by controlling switches included in the second motor control unit.
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公开(公告)号：US11942875B2
公开(公告)日：2024-03-26
申请号：US17306245
申请日：2021-05-03
申请人： DENSO CORPORATION
CPC分类号： H02M7/5387 , H02M1/08 , H02M7/493 , H02M7/53871 , H02P27/08 , H02P29/68 , H02M1/0043
摘要： A drive system for a rotating electric machine system includes: a first inverter and a second inverter connected to first and second ends of multi-phase windings respectively; a selection unit performing selection between a first setting representing that the first inverter is set to a switch drive inverter and the second inverter is set to a neutral-point drive inverter and a second setting representing that the second inverter is set to the switch drive inverter and the first inverter is set to the neutral-point drive inverter; and a drive control unit performing a switch drive task of performing on-off driving of the upper and lower arm switches of the switch drive inverter to thereby input/output power to/from the rotating electrical machine; and a neutral-point drive task of maintaining at least one of the upper and lower arm switches of the neural-point drive inverter in an on state.
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公开(公告)号：US20230412112A1
公开(公告)日：2023-12-21
申请号：US17985621
申请日：2022-11-11
发明人： Ji Woong JANG , Sang Cheol SHIN , Yoo Jong LEE , Dong Hoon PARK , Ki Jong LEE , Ho Tae CHUN
IPC分类号： H02P29/68 , H02P27/08 , H02P29/024
CPC分类号： H02P29/68 , H02P27/08 , H02P29/027
摘要： A motor driving apparatus includes an inverter that includes a switching element connected between either terminal of a battery and a thermistor insulated from the switching element and that drives a motor through the switching element, a resistor connected between a sensing node to which one end of the thermistor is connected and a terminal of a low source voltage, and a motor controller configured for controlling a relay connected between the battery and the switching element based on a voltage of the sensing node.
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公开(公告)号：US20230378853A1
公开(公告)日：2023-11-23
申请号：US18310718
申请日：2023-05-02
发明人： Lokeshwaran Rajendran , Ryan A. Khatib , Noah P. Seiler , Mitchell A. Ellena , Daniel J. Tomcheck , Jack J. Glennon
CPC分类号： H02K11/25 , B25F5/02 , H02K7/145 , H02K11/0094 , H02P29/027 , H02P29/68 , H02K2211/03
摘要： A power tool includes a housing having a motor housing portion and a handle portion. A motor having a motor axis is positioned within the motor housing portion. The power tool further includes a first printed circuit board positioned within the motor housing portion. The first printed circuit board intersects the motor axis. The power tool also includes a second printed circuit board positioned within the motor housing. The second printed circuit board intersects the motor axis. The second printed circuit board includes a conductive high impedance trace that is configured to interrupt electric power to the motor in response to a current that exceeds a current limit.
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