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Software for E-Vehicles’ ASIL-C 3-Level Inverters
About the client
Andersen was approached by a trusted partner of automotive manufacturers, a prominent Europe-based company working in the domain of sustainable mobility and e-vehicles and cooperating with world-known car brands. They outsourced the work on low-level software layers for a 3-level inverter to our dedicated team. Andersen's specialists seamlessly integrated with their in-house engineering processes and submitted all the required deliverables in full conformity with strict safety and quality standards.
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About the project
Andersen assigned development specialists possessing relevant skills to an automotive company to engineer software for ASIL-C 3-level inverters in e-cars.
Other:
Vector CANape, TRACE32, SPI Analyzer tools (Saleae), CAN FD, LIN, SPI, Git, Jenkins, Polarion
Business Context
The e-vehicle niche is on the rise all over the globe. According to the International Energy Agency, the percentage of e-car sales rose from 4% in 2020 to 15% in 2022. Correspondingly, market competition is getting stiffer. Manufacturers seek to offer the best possible user experiences while meeting all industry and safety-related standards. In order to meet them, our customer in this business case participated in the implementation of a project focused on inverters – devices that convert DC power into AC power.
Challenges
While working on this automotive IT project, we had the following three main tasks:
- Assuming a pivotal role in providing the necessary expertise and workforce for orchestrating the software engineering and integration of an ASIL-C 3-level inverter for e-vehicles;
- Becoming an integral part of the customer’s software process in this capacity;
- Meeting the high standards of ASPICE and ISO 26262 (ASIL-C) in their entirety.
Solution
In this software development project for the prototype of an ASIL-C 800V 3-level inverter for e-vehicles, the scope of work assigned to us covered:
- Integration and configuration of a Microcontroller Abstraction Layer;
- Development and testing of drivers for a system basis chip.
In particular, we dealt with the implementation, documentation, and testing of the following complex device drivers:
- Eice drivers;
- IGBT drivers;
- TMR position sensor drivers.
Also, the deliverables that our team was expected to submit in terms of implementing, documenting, and testing of the I/O Hardware Abstraction components for safety critical digital and analog acquisition should be mentioned:
- AC current signal acquisition;
- Resolver speed and position signal acquisition (TMR driver);
- HV DC link voltage signal acquisition;
- Electrical motor, DCB and Coolant temperature signal acquisition.
Finally, we took care of the End-2-End CAN communication safety mechanisms – both their implementation and testing.
Project results
The project has been successfully implemented with the following results:
- Software low-level layers for a 3-level inverter were built, tested, and documented on time and within budget;
- All the deliverables are 100% compliant with the Automotive SPICE and ISO 26262 processes;
- The resulting software is reusable and modular, enabling the customer to make use of it in different subsequent projects with minimal effort.
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What happens next?
An expert contacts you after having analyzed your requirements;
If needed, we sign an NDA to ensure the highest privacy level;
We submit a comprehensive project proposal with estimates, timelines, CVs, etc.
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