Authors

E. Friesen, I. Meier, W. Siebert, M. Bigalke, Volkswagen Nutzfahrzeuge, Wolfsburg

Year

2026

Print Info

Production/Publication ÖVK

Summary

Autonomous driving presents new challenges for the thermal management of vehicles. Using the example of the ID.BUZZ AD from Volkswagen Commercial Vehicles, the increasing complexity due to additional energy and heat inputs is examined—particularly as a result of installing multiple DC/DC converters, as well as the computing unit of the Self-Driving System (SDS) and the Multi Purpose Computing Interface (MPCI).
The functionality of an enhanced thermal management system aims to ensure operational safety and availability under varying load conditions. Essential aspects include the integration of cooling circuits for several existing and new components (SDS, MPCI, DC/DC converters, Electric machine, pulse inverter, charger) and the consideration of minimum flow rates and temperature limits.
Furthermore, interfaces to drivetrain control and HMI solutions for display and configuration are addressed. The analysis covers functional and non-functional requirements, safety strategies to fulfill the ISO26262, as well as the handling of fault scenarios such as pump or sensor failures.

ISBN

978-3-9504969-5-6

DOI

https://doi.org/10.62626/3ier-79f8 Copy link

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