E/E testing on system and complete-vehicle level

Complex E/E systems can only be validated reliably when functions, interfaces, control units, and communication networks are tested within their real system context. Modern vehicle functions do not operate in isolation. They depend on the interaction of multiple components, software versions, data flows, and vehicle networks.

We support our customers in planning and executing E/E tests at system, function, and complete-vehicle level. Our work begins with the definition of suitable test concepts and strategies. We analyze the system architecture, functional dependencies, interfaces, and communication paths to determine how individual functions and complete systems should be tested. Based on this, we define test scopes, test environments, validation steps, and acceptance criteria that reflect realistic operating conditions.

We combine virtual tests, test bench activities, and near-vehicle testing to ensure robust validation across different maturity levels. This includes software-in-the-loop, hardware-in-the-loop, residual bus simulation, integration testing, functional testing, and complete-vehicle tests. By using both virtual and real-world environments, we help identify issues early and verify that system behavior remains stable as the architecture develops.

A key part of our expertise lies in testing within the systemic context. We do not evaluate functions only as isolated elements, but also analyze how they behave within the networked overall system. This includes testing of control units, systems, and functions in vehicles and on test benches, as well as open testing in test fleets. We examine system interactions, communication behavior, fault patterns, and dependencies between functions.

We also support diagnostics, issue analysis, and validation documentation. When errors occur, we analyze root causes, support ticket creation, evaluate communication behavior, and verify corrective measures. This ensures that test results are not only recorded, but translated into clear findings that support quality, safety, and release decisions.

Our goal is to provide measurable proof that E/E systems operate reliably under realistic conditions. The result is a robust validation foundation that supports stable products from the initial concept through integration, release, and series production.