51 Abbildung 1: Softing Automotive Electronics OBD-Unterstützung über den gesamten Lebenszyklus Figure 1: Changing Vehicle Architectures Figure 2: Softing Multiflash Unit with four VIN|ING 2000 units and four TCS units With “off-line flashing,” large data packages are transferred to the control units before they are integrated into the vehicle, for example at separate flash stations or preparation areas. Because this process takes place independently of the vehicle production line, it is not subject to assembly cycle times. Direct access to the control units makes it possible to program several control units simultaneously at a flash station. In one customer project, 4,000 control units had to be reflashed under severe time pressure. The flashing time per control unit was 20 minutes. By programming eight control units simultaneously, the total flashing time was reduced from 8 weeks to 1 week. “In-line flashing” refers to programming control units during vehicle assembly. It is characterized by cycle-time-controlled production, tightly limited time windows, and control units that are powered only during certain assembly stages. Interruptions or repetitions of a flashing operation have an immediate impact on the production process. During in-line flashing, only the amount of data that can be programmed reliably within the specified line cycles is written to the control units. This may include complete software versions; where only a few short line cycles are available, it may be limited to coding strings used to enable vehicle variants. In addition to programming the control units, the provision of flash data also plays a decisive role in in-line flashing. Because different vehicle variants are produced in parallel on a production line, the vehicle-specific software package must be available for the correct vehicle at the correct time. A vehicle interface with local data storage enables deterministic provision of flash data without relying on continuous data transfer over the production network during the flashing operation. At the same time, the vehicle interface can continuously synchronize its data with the backend, ensuring that up-to-date software versions are always available. The Softing SVI (Smart Vehicle Interface) implements this concept by combining local data storage with continuous backend connectivity. Flashing and update processes affect throughput times, process stability, restart rates, and variant consistency, making them a production-critical factor. High-performance, scalable flashing concepts provide the technical foundation for efficient, secure, and cost-effective flashing processes even as software volumes continue to increase. https://automotive.softing.com
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