Abstract
In order to provide a reliable ECU data-downloading device during EOL phase of electronic-controlled diesel engine, a method based on CAN bus and extended CCP for ECU application program downloading and updating was proposed. Using this method an ECU programming device called BootLoader was developed. BootLoader had abilities of downloading and updating application program of ECU and can realize reprogramm of calibration data. Seed and Key algorithm was implemented to validate identity of operator. Special Format File Generator was used for converting target file with standard format into special format file for guaranteeing integrity and correctness of production files. Multilevel CRC mechanism was used to verify results of downloading and programming. The downloading/programming performance and reliability of Boot-Loader were analyzed by monitoring CAN bus status during BootLoader working. The results prove that BootLoader can meet requirements during development and manufacturing processes.
| Original language | English |
|---|---|
| Pages (from-to) | 65-71 |
| Number of pages | 7 |
| Journal | Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering |
| Volume | 29 |
| Issue number | 1 |
| State | Published - Feb 2008 |
Keywords
- CAN calibration protocol
- Diesel engine
- ECU programming device
- EOL
- Electronic controller unit
- IC engine
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