A controller production off-line detection method and system
By employing an AB backup mechanism in the vehicle controller, the production line testing firmware and commercial mass production firmware are stored in different areas, enabling automatic switching. This solves the problem of multiple firmware flashing during the production line shutdown of the vehicle controller, improving production efficiency and reducing costs.
CN122450474APending Publication Date: 2026-07-24XIAMEN YAXON ZHILLAN TECHNOLOGY CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XIAMEN YAXON ZHILLAN TECHNOLOGY CO LTD
- Filing Date
- 2025-01-22
- Publication Date
- 2026-07-24
AI Technical Summary
Technical Problem
The vehicle controller requires two firmware flashing processes when it comes off the production line, which increases the production and processing steps and costs.
Method used
An AB backup mechanism is adopted to flash production test firmware and commercial mass production firmware to different storage areas of the controller, and automatic switching is achieved through a bootloader to reduce the number of firmware flashing operations.
Benefits of technology
It enables automatic switching between production line inspection and formal mass production and shipment inspection, reducing production steps, improving production efficiency and reducing costs.
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Smart Images
Figure CN122450474A_ABST
Abstract
The application discloses a controller production off-line detection method and system, writes production off-line detection firmware in an integrated firmware package to firmware storage A, writes commercial mass production firmware to firmware storage B, sets the firmware in the firmware storage A as valid firmware and startup firmware, sets the firmware in the firmware storage B as valid firmware, after restarting, the production off-line detection firmware is used to detect the controller based on the boot loader, if the detection is passed, the commercial mass production firmware is used to detect the controller based on the boot loader, two firmware are written in different firmware storage areas of the controller through one-time firmware writing, the two firmware are set as valid firmware, the production off-line detection firmware is set as startup firmware, the automatic switching of the production off-line detection and the formal mass production delivery detection is realized, the product production and processing procedures are reduced, the production efficiency is improved, and the production cost is reduced.
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