Title:
VEHICULAR CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP2023000737
Kind Code:
A
Abstract:
To provide a vehicular control system which can identify removal of an auxiliary battery with a simple structure.SOLUTION: In a vehicular control system 1, a first control device (an HV-ECU 20) is supplied with electric power from an auxiliary battery 10 of a vehicle and may rewrite a program to be executed by itself. A second control device (an MG-ECU 30) which is supplied with electric power from the auxiliary battery 10 in response to controlling of the first control device and stores diagnostic information of the vehicle. The first control device has a volatile memory (SRAM 26) in which data is erased in response to rewriting of the program. The second control device determines that the auxiliary battery 10 has been removed and erases the diagnostic information when erasure history of the volatile memory exists and rewriting history of the program does not exist.SELECTED DRAWING: Figure 1
Inventors:
AMANO AYU
Application Number:
JP2021101727A
Publication Date:
January 04, 2023
Filing Date:
June 18, 2021
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
B60R16/02; G01M17/007; G06F11/14
Attorney, Agent or Firm:
Morishita Kenki
Yusuke Murata
Tomoyuki Miki
Yusuke Murata
Tomoyuki Miki
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