18564582. BATTERY DIAGNOSIS APPARATUS (SUBARU CORPORATION)
BATTERY DIAGNOSIS APPARATUS
Organization Name
Inventor(s)
Shuichiro Yamaguchi of Tokyo (JP)
Yasumasa Mochizuki of Tokyo (JP)
BATTERY DIAGNOSIS APPARATUS
This abstract first appeared for US patent application 18564582 titled 'BATTERY DIAGNOSIS APPARATUS
Original Abstract Submitted
A battery diagnosis apparatus includes a current source configured to apply a pulse current to a battery, a voltage sensor configured to detect a voltage between terminals of the battery, and a control device. The control device includes one or more processors and one or more memories coupled to the one or more processors. The one or more processors are configured to execute processing including acquiring a voltage response obtained by applying the pulse current from the current source to the battery; deriving, based on the voltage response, an index indicating a comparison between an on-ATRF and an off-ATRF, the on-ATRF being an apparent transient resistance function of the battery when the pulse current is turned on, the off-ATRF being an apparent transient resistance function of the battery when the pulse current is turned off; and determining a degree of deposition of lithium in the battery, based on the derived index.
