PROBLEM TO BE SOLVED: To shorten time for read-write processing for another piece of memory when performing the read-write processing of vehicular data from-to the other piece of memory, the data to be read-write-processed from-to a piece of memory to which abnormality has occurred, in an ECU incorporated in a vehicle.SOLUTION: A vehicle 10 includes an HV-ECU 14 and an MG-ECU 16. The MG-ECU 16 includes: a main CPU 26; a sub-CPU 28; a first EEPROM 30 connected to the main CPU 26; and a second EEPROM 32 connected to the sub-CPU 28. When abnormality occurs in the first EEPROM 30, the HV-ECU 14 selects, in accordance with a user operation, processing-target data from a group of vehicular data to be originally read-write-processed from-to the first EEPROM 30 by the main CPU 26, and sends, to the sub-CPU 28, an instruction to read-write the processing-target data. Receiving the aforementioned instruction, the sub-CPU 28 performs read-write processing of the processing-target data from-to the second EEPROM 32.SELECTED DRAWING: Figure 1
【課題】車両に搭載されたECUにおいて、異常が生じたメモリに対して読み書き処理すべき車両データを他のメモリに対して読み書き処理する際に、当該他のメモリに対する読み書き処理に要する時間を短縮する。【解決手段】車両10は、HV−ECU14及びMG−ECU16を備える。MG−ECU16は、メインCPU26、サブCPU28、メインCPU26に接続された第1EEPROM30、及び、サブCPU28に接続された第2EEPROM30を有する。HV−ECU14は、第1EEPROM30において異常が生じた際、本来メインCPU26が第1EEPROM30に対して読み書き処理すべき車両データ群から、ユーザ操作の内容に従って処理対象データを選択し、処理対象データの書き込み指示をサブCPU28へ送る。サブCPU28は、当該指示を受けて第2EEPROM32に対して処理対象データの読み書き処理を行う。【選択図】図1
VEHICULAR ELECTRONIC CONTROL APPARATUS
車両用電子制御装置
2017-07-13
Patent
Electronic Resource
Japanese
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