Markus Plöger

Steuergeräte-Verbundtests mittels Hardware-in-the-Loop-Simulation

Die fur Innenraumkomfort und passive Sicherheit zustandige Elektronik des neuen Opel Vectra zeichnet sich durch ein Netzwerk zahlreicher Steuergerate unterschiedlicher Hersteller aus. Der Test dieses Steuergerate-Verbunds ist besonders aufwandig. Bisherige Testmethoden stosen schnell an ihre Grenzen. Durch den Einsatz von Hardware-in-the-Loop-Simulation erreicht Opel eine grose Testfallabdeckung und Testtiefe. Der Nutzen des eingesetzten Hardware-in-the-Loop-Simulators wird durch die Automatisierung der Tests deutlich erhoht. Zukunftig sollen automatisierte Tests auch auf fruhere Phasen der Steuergerate- Entwicklung ausgedehnt werden.

Hardware-in-the-Loop Test of Battery Management Systems

Abstract The essential task of a battery management system (BMS) is to consistently operate the high-voltage battery in an optimum range. Due to the safety-critical nature of its components, prior testing of a BMS is absolutely necessary. Hardware-in-the-loop (HIL) simulation is a cost-effective and efficient tool for this. Testing the BMS on a HIL test bench requires an electronics unit to simulate the cell voltages and a scalable real-time battery model. This paper describes a HIL system that enables comprehensive testing of BMS components. Hardware and software solutions are proposed for the high requirements of these tests. The individual components are combined to make a modular system, and safety-critical aspects are examined. The paper shows that the system as developed fulfills all the requirements derived from the different test scenarios for BMS systems.

ECU network testing by hardware-in-the-loop simulation

The electronics responsible for the comfort and passive safety systems in the new Opel Vectra involve a network of numerous electronic control units (ECU) from different manufacturers. Testing the ECU network is a particular challenge. Existing test methods soon come up against their limits. By using hardware-in-the-loop simulation, Opel achieves extensive test coverage and depth. Test automation considerably enhances the benefit of using the hardware-in-the-loop simulator. In future, test automation will also be extended to earlier phases of ECU development.