The future of mobility isn’t just rolling on four wheels—it’s running on code. Software has become the beating heart of modern vehicles, transforming traditional cars into smart companions. From the first digital draft to the virtual test drive, technologies like software-defined testing and cloud integration are bringing innovation straight to the road.
What does this mean? More features, more connectivity, more possibilities—but also more complexity. To ensure tomorrow’s vehicles are not just smart but also safe, we need to rethink testing: flexible, scalable, and intelligent.
At our first Innovation Day, everything revolved around software-defined testing. The clear motto: “Test without limits.” This isn’t wishful thinking—it’s reality. We showed the industry how software-defined testing and cloud technologies not only accelerate development but also secure the quality of tomorrow’s vehicle systems. The core message? Only when classic strategies work hand-in-hand with innovative approaches like test automation, scalability, and intelligent test methods can we master the growing complexity of modern vehicle architectures—and tame the hungry data monster.
One thing is clear: The automotive world is changing rapidly. More and more mechanical components are being replaced or enhanced by software. With the leap to the software-defined vehicle (SDV), possibilities expand—and so do the technical challenges around integration, testing, and quality assurance. This is where software-defined testing (SDT) and virtualization come into play: They make development not only more efficient but also future-proof.
This wave of innovation brings new demands for validation. SDT enables automated, comprehensive, and—most importantly—early testing of software modules. A key part of this approach is integrating virtual control units into test environments, such as Software-in-the-Loop (SiL) and Hardware-in-the-Loop (HiL) systems. Development cycles are significantly shortened, risks are minimized, and market relevance increases. Simulation and virtualization reliably map even complex system networks—long before real hardware is available. Even after physical components are ready, software-defined testing offers decisive advantages: Tests remain automated, reproducible, under identical conditions, and above all, scalable. This preserves consistency between virtual and real validation, allowing unwanted side effects from changes to be detected and resolved early.
Zone and domain architectures are the backbone of SDV development. They organize the distribution of functions and control units by logical or geographic criteria. This modularity unlocks new digital potential but also raises the bar for testing. Intelligent black-box control units, reduced access to measurement points, and increased requirements make highly automated test procedures indispensable.
HiL systems and virtual control units (vECU) enable practical tests without a physical vehicle environment. Human-machine interface components and functions like seat modules or voice controls can be validated under realistic conditions. Errors are identified precisely, rework is avoided, and development times are further reduced.
Modern car seats integrate numerous software-driven functions—from seat adjustment and massage to safety features like belt tensioners or child seat detection. Over 150 networked control units and more than 10,000 test cases require automated, scalable test processes. Advanced virtualization solutions enable comprehensive safeguarding of complex systems. Quality requirements are rising with the SDV trend: The ISO/IEC 25010 standard defines eight key criteria, including functionality, reliability, efficiency, safety, compatibility, usability, maintainability, and portability. Each criterion is addressed through specific test methods, simulations, and test cycles. SDT and virtualization secure sustainable technologies and ensure the future viability of modern vehicle systems.
In the software-defined vehicle, efficient test processes are central to meeting the complex demands of modern cars. Critical test aspects include verifying functional chains like correct sensor data transmission, ensuring reliability under extreme voltage and hardware conditions, and meeting precise timing for safety-relevant functions. Security mechanisms such as certificate-based diagnostic systems are essential. Compatibility and variant management for modular control units, as well as maintainability and update capability (e.g., for over-the-air applications), are also in focus. The use of virtual control units in development enables early, automated regression tests and flexible DevOps cycles—delivering scalable, accelerated integration phases and significantly reducing hardware dependency.
A structured software-defined testing approach is essential today to master the complexity of modern vehicle systems. The combination of virtualization technologies, HiL systems, quality standards like ISO 25010, modular architecture, and the integration of virtual control units ensures innovation, efficiency, and sustainable quality. Our experts support the realization of innovative test processes throughout the entire vehicle development cycle—are you aiming for quality leadership and future security? Don’t hesitate—get in touch. We’ll help you tame the data monster.
