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公开(公告)号：US10581359B1
公开(公告)日：2020-03-03
申请号：US16233357
申请日：2018-12-27
发明人： Chun-An Lin , Hsi-Chih Chang , Hsin-Hung Chou , Wen-Che Shen , Kuan-Jung Lin
摘要： An output torque calculation device and a method thereof is provided, and the output torque calculation device includes a first sensor, a second sensor, a rotor, a reducer, a processor, and an elastic device. An input portion of the reducer and an output portion of the reducer are respectively connected to the rotor and an input portion of the elastic device, and an output portion of the elastic device is configured to connect to a load. The output torque calculation method comprises: detecting a first angle of the rotor by the first sensor; detecting a second angle of the output portion of the elastic device by the second sensor; and calculating a torque carried by a final output end of the output torque calculation device by the processor according to the first angle and the second angle.
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公开(公告)号：US12039232B2
公开(公告)日：2024-07-16
申请号：US17134030
申请日：2020-12-24
发明人： Chun-An Lin , Wen-Che Shen , Chih-Wei Yeh , Po-Huan Chou , Chun-Chieh Chang , Yu-Hsun Wu
CPC分类号： G06F30/20 , G01R19/0084 , G01R29/023 , G06F30/30 , H03M1/66
摘要： A hardware-in-the-loop (HIL) simulation device is provided, which includes a processing circuit and a pulse-width modulation (PWM) signal observation circuit. The PWM signal observation circuit includes an energy storage unit and the energy storage unit is coupled to the processing circuit. A signal source transmits a PWM signal to the processing circuit and the PWM signal observation circuit, and the energy storage unit is charged when the PWM signal is at high level. The processing circuit detects the voltage of the energy storage unit when detecting the falling edge of the PWM signal so as to calculate the duty cycle of the PWM signal.
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公开(公告)号：US11658599B1
公开(公告)日：2023-05-23
申请号：US17548617
申请日：2021-12-13
发明人： Wen-Che Shen , Cheng-Min Chang , Chun-Chieh Chang , Po-Huan Chou
IPC分类号： H02P27/08 , G01R15/04 , G01R19/00 , H02M7/5387
CPC分类号： H02P27/08 , G01R15/04 , G01R19/0007 , H02M7/53871
摘要： A voltage measurement device for pulse-width modulation (PWM) signals is provided, which includes a conversion circuit and a processing circuit. The conversion circuit receives a first PWM signal and a second PWM signal from a motor driving device, and converts the first PWM signal and the second PWM signal into the absolute value signal and the polarity signal of the line-to-line voltage signal between the first PWM signal and the second PWM signal. The processing circuit converts the polarity signal and the absolute value signal into a first integral signal and a second integral signal, and reconstructs the line-to-line voltage signal according to the first integral signal and the second integral signal so as to obtain the reconstructed voltage signal of the line-to-line voltage signal.
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公开(公告)号：US11616462B1
公开(公告)日：2023-03-28
申请号：US17558359
申请日：2021-12-21
发明人： Chia-Min Ting , Wen-Che Shen , Chun-An Lin , Ya-Ling Chang
摘要： A motor parameter estimation method includes obtaining an operation signal of a motor, wherein the operation signal includes an encoder signal, a phase current and a driving voltage, obtaining a number of poles according to the encoder signal and the phase current, performing a simulation procedure according to the driving voltage, the number of poles and an initial random parameter set, wherein the simulation procedure is calculating a simulation response current, calculating an error value between the simulation response current and the phase current, determining whether the error value falls into a threshold range, if the error value falls outside of the threshold range, performing the simulation procedure according to the driving voltage, the number of poles and an update random parameter set, and if the error value falls into of the threshold range, outputting the number of poles and the initial random parameter set.
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