Our customer is an Automotive Tier-1 supplier, specializing in vehicle control systems and components.
Keeping up with their commitment of delivering innovative solutions for the automotive industry, they planned to introduce FOTA (Firmware Over-The-Air) update feature in their product lines.
The basic idea was to enable the automotive control units to install software updates from the Cloud Server in real time. Eventually, the customer also wanted the product to be AIS 140 compliant.
Customer’s project roadmap, of integrating FOTA in an Automotive Electronic Control Unit (ECU), was confronted with following challenges:
A CAN/LIN based Bootloader was required for application and ECU reprogramming over the air.
The bootloader was required to be a part of the telematics unit that is tasked with ECU reprogramming over the air and facilitating remote vehicle diagnostics. The expertise in application processes development and testing for FoTA was also required.
A Product Engineering Services partner with ready-to-use components like Board Support Package (BSP) software and low-level device drivers for popular Microcontroller family was sought by the customer.
Having 12+ years of experience in CAN, Bootloader, and vehicle diagnostics, Embitel was chosen to come on-board for this project.
Before embarking on the solution development, we had several rounds of discussion to understand the pain points of the customers. We also analyzed the components that would need to be built from ground zero and found out opportunities where our re-usable components could be integrated.
The image shows the layered software architecture:
The system architecture for the enablement of FOTA included the following components:
Our solution comprised:
Apart from them, we deployed our production grade reusable components such as Board Support Package (BSP) software with flash drivers for Renesas Micro and Freescale MCU family.
Here is the system overview of the FoTA solution:
Rigorous testing was performed on both internal servers and servers provided by the customer. We ensured that the components are AIS 140 compliant, as defined in the project scope. Post-delivery support was also provided by our team.
We were able to deliver the project in a very restricted timeframe. Our expertise in providing assistance for AIS 140 compliance was a great value add for the customer.
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