Title:
BATTERY REPLACEMENT DETERMINATION DEVICE
Document Type and Number:
Japanese Patent JP2021127033
Kind Code:
A
Abstract:
To accurately determine whether or not an auxiliary machine battery has been replaced.SOLUTION: A microcomputer executes processing including a step of switching a switch to a conduction state in IG-OFF (YES in S100), a step (S104) of acquiring an electric current and a voltage from a switching circuit, a step (S106) of calculating a value of this time of an internal resistance, a step (S108) of switching the switch to a cut-off state, a step (S112) of determining that a battery has been replaced when the internal resistance is changed (YES in S110), a step (S114) of determining that the battery has not been replaced when the internal resistance is not changed (NO in S110), and a step (S120) of transmitting replacement determination information to an ECU when IG-ON (YES in S116) and it is determined that the battery has been replaced (YES in S118).SELECTED DRAWING: Figure 2
Inventors:
IWAYA MASAKAZU
Application Number:
JP2020023580A
Publication Date:
September 02, 2021
Filing Date:
February 14, 2020
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
B60R16/04; B60L1/00; H01M10/42; H01M10/48
Attorney, Agent or Firm:
Fukami patent office