US 12,248,026 B2
Impedance measurement system
Tomohiro Abe, Tokyo (JP)
Assigned to SUBARU CORPORATION, Tokyo (JP)
Filed by SUBARU CORPORATION, Tokyo (JP)
Filed on Jul. 21, 2022, as Appl. No. 17/870,538.
Claims priority of application No. 2021-145160 (JP), filed on Sep. 7, 2021.
Prior Publication US 2023/0075287 A1, Mar. 9, 2023
Int. Cl. G01R 31/389 (2019.01); G01R 31/36 (2020.01)
CPC G01R 31/389 (2019.01) [G01R 31/3648 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An impedance measurement system configured to measure impedance of a measurement target capable of supplying power to an electrical load device, the impedance measurement system comprising:
one or more processors; and
one or more memories coupled to the one or more processors so as to be capable of communicating with the one or more processors, wherein
the one or more processors are configured to perform a process comprising
acquiring data about output power from the measurement target when an alternating current signal of at least one frequency is superimposed on the output power,
calculating impedance at the at least one frequency with data about an exclusion period in which waveform distortion of the output power is detected being excluded, and
in a case where how many times the data about the exclusion period is excluded at a certain frequency is greater than or equal to a predetermined threshold value, changing a setting of an operating condition of an electronic device coupled to the measurement target or the electrical load device to measure the impedance.