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Hardware-in-the-loop (HIL) simulation is a real-time testing process that has been proven indispensable for the modern vehicle dynamics, powertrain, chassis and body systems electronic controls development. The high quality standards and robustness of the control algorithms can only be met by means of detailed vehicle plant simulation models. In the last few years, several efforts have been made to develop detailed plant models. Several tools for the vehicle modeling are available in the market and each tool has different and distinct advantages. This paper addresses ways that dSPACE Automotive Simulation Models (ASM) can support the model-based development processes. Additional modern software tools that were used in connection with the ASM are LMS AMESim and Mathworks SimDriveline (of Simscape). ASM is an open Matlab/Simulink model environment used for offline PC based simulation and online real-time platform HIL testing. The combinations of system models from different suppliers typically require significant adaptation effort. dSPACE's ASM are ideally adapted to dSPACE hardware-in-the-loop simulators with real time capability whereas the AMESim environment requires a special procedure to make it compliant with dSPACE real-time hardware. This paper describes how AMESim vehicle dynamics, SimDriveline automatic transmission models and ASM parallel hybrid vehicle models are integrated for a dSPACE HIL real-time simulation environment.

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Automobiles are highly interconnected mechatronic systems. Over the last years, the software of these systems has played an increasingly important role in the value chain. Current production vehicles contain more than 80 electronic control units (ECUs) with over one hundred million lines of software code. Advanced driver assistance systems and functions for autonomous driving will further increase the requirements for the E/E systems. Furthermore, these systems will become even more complex due to the use of sensors to capture the vehicle environment, the interconnection of the ECU functions, and the influence of external communication. This paper outlines an ECU test process example in which an advanced driver assistance function is tested on a hardware-in-the-loop (HIL) test system. The necessary process steps and interdependencies to ISO 26262 are identified. The paper also explains how to simulate an ideal test process under consideration of the version and variant flows, and how to use different validation systems to perform different validation steps throughout the development process. The paper aims to analyze the various questions arising in the E/E validation process to identify the advantages the users have throughout the entire development cycle.

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