公开(公告)号：US20210215761A1

公开(公告)日：2021-07-15

申请号：US16744109

申请日：2020-01-15

Applicant: National Chung-Shan Institute of Science and Technology

Inventor： Wei-Min Hsiao ,  Shih-Chang Tseng ,  Kuo-Kuang Jen ,  Gwo-Huei You ,  Chih-Hsien Chung

IPC: G01R31/364 ,  G01R31/36 ,  H01M10/42 ,  H01M10/48

Abstract: The present invention discloses an external battery short-circuit testing device, configured to perform short-circuit test on a battery pack under test. The external battery short-circuit testing device comprises a plurality of fuses; a Hall current transducer, coupled to the plurality of fuses; a current meter, coupled to the Hall current transducer and the battery pack under test; a voltmeter, coupled to the battery pack under test; a variable resistor, coupled to the Hall current transducer; an electromagnetic switch, coupled to the variable resistor and the battery pack under test; and an operation unit, comprising a voltage measurement unit, a current measurement unit, a temperature measurement unit and a switch control unit.

公开(公告)号：US20210223323A1

公开(公告)日：2021-07-22

申请号：US16746922

申请日：2020-01-19

Applicant: National Chung-Shan Institute of Science and Technology

Inventor： Wen-Chen Lih ,  Tsung-Yu Tsai ,  Shih-Chang Tseng

IPC: G01R31/3835 ,  G01R31/374 ,  H02J7/00

Abstract: The present invention discloses a method for rapidly estimating for a remaining capacity of a battery, comprising performing a constant current charge to the battery in a first period, instantly capturing a voltage/temperature of the battery in a frequency, and generating a voltage-time graph; after leaving the battery along for a second period, instantly capturing the voltage/temperature of the battery in the frequency; calculating a voltage rising rate during the first period; calculating a voltage drop rate during a leaving-along period; calculating a critical sample time; applying the critical sample time, and comparing the voltage-time graph measured in the first period, to obtain a critical sampling voltage; calculating a voltage difference slope; calculating a charging time, which is consumed by charging the battery from a lower-bound voltage to an upper-bound voltage with the constant current; calculating a compensation ratio value; and calculating the remaining capacity of the battery.

公开(公告)号：US11333711B2

公开(公告)日：2022-05-17

申请号：US16746922

申请日：2020-01-19

Applicant: National Chung-Shan Institute of Science and Technology

Inventor： Wen-Chen Lih ,  Tsung-Yu Tsai ,  Shih-Chang Tseng

IPC: G01R31/3835 ,  H02J7/00 ,  G01R31/374

Abstract: The present invention discloses a method for rapidly estimating for a remaining capacity of a battery, comprising performing a constant current charge to the battery in a first period, instantly capturing a voltage/temperature of the battery in a frequency, and generating a voltage-time graph; after leaving the battery along for a second period, instantly capturing the voltage/temperature of the battery in the frequency; calculating a voltage rising rate during the first period; calculating a voltage drop rate during a leaving-along period; calculating a critical sample time; applying the critical sample time, and comparing the voltage-time graph measured in the first period, to obtain a critical sampling voltage; calculating a voltage difference slope; calculating a charging time, which is consumed by charging the battery from a lower-bound voltage to an upper-bound voltage with the constant current; calculating a compensation ratio value; and calculating the remaining capacity of the battery.

公开(公告)号：US11675018B1

公开(公告)日：2023-06-13

申请号：US17564264

申请日：2021-12-29

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Dao-Qin Lin ,  Wei-Min Hsiao ,  Shih-Chang Tseng ,  Chih-Hsien Chung ,  Gwo-Huei You ,  Kuo-Kuang Jen

IPC: G01R31/389 ,  G01K13/00 ,  G01R31/367 ,  G01R27/02 ,  G01N33/00

CPC classification number: G01R31/389 ,  G01K13/00 ,  G01N33/0027 ,  G01R27/02 ,  G01R31/367

Abstract: A portable battery detection device includes a battery data receiving module for receiving battery data, a temperature measurement module for measuring battery temperature, a gas measurement module for measuring discharged gas, an insulation resistance measurement module for measuring insulation resistance, a serial impedance measurement module for measuring serial impedance, a data acquisition module for receiving various data sent by the temperature measurement module and the gas measurement module, an electric meter module for measuring DC voltage, current, and impedance, the data integration module for receiving data transmitted by the battery data receiving module, the electric meter module, and the insulation resistance measurement module, and then integrating the data to the processor module, and the processor module for using data received from the data integration module, the data acquisition module, and the serial impedance measurement module to transmit data, control, and manage the operation of the portable battery detection device.

公开(公告)号：US11169212B2

公开(公告)日：2021-11-09

申请号：US16744109

申请日：2020-01-15

Applicant: National Chung-Shan Institute of Science and Technology

Inventor： Wei-Min Hsiao ,  Shih-Chang Tseng ,  Kuo-Kuang Jen ,  Gwo-Huei You ,  Chih-Hsien Chung

IPC: G01R31/364 ,  G01R31/36 ,  H01M10/42 ,  H01M10/48

Abstract: The present invention discloses an external battery short-circuit testing device, configured to perform short-circuit test on a battery pack under test. The external battery short-circuit testing device comprises a plurality of fuses; a Hall current transducer, coupled to the plurality of fuses; a current meter, coupled to the Hall current transducer and the battery pack under test; a voltmeter, coupled to the battery pack under test; a variable resistor, coupled to the Hall current transducer; an electromagnetic switch, coupled to the variable resistor and the battery pack under test; and an operation unit, comprising a voltage measurement unit, a current measurement unit, a temperature measurement unit and a switch control unit.