Herbert Hanselmann

Hardware-in-the-loop simulation testing and its integration into a CACSD toolset

Hardware-in-the-loop simulation allows ECUs to be tested in a simulated environment in closed-loop. Engines, vehicles, and other components the ECU normally controls are replaced by high-fidelity models executed on a real-time computer system. It is shown that it is now possible to use the same tools for hardware-in-the-loop simulation that have been used in the control development, with the benefit of easy use and reuse of models.

Automotive control: from concept to experiment to product

Without appropriate tools to implement new controllers quickly and safely, the tightening development schedules cannot be met anymore. This paper addresses the issue of rapid control prototyping (RCP). With RCP there is a smooth and fast transition from a design concept to its experimental verification.

Production quality code generation from Simulink block diagrams

This paper describes a new code generator that meets both the requirements of production code developers in terms of efficiency and reliability, and of the system engineer doing the control design. It works with MATLAB/Simulink block diagrams, supports automatic scaling, and generates highly-efficient production-ready C code for microcontrollers. The development environment is enhanced by a number of supporting tools to analyze fixed-point effects, profile code sizes and execution times, validate models with automated test series, output ASAP2 calibration information, and generate documentation.

Challenges in automotive software engineering

Developing and integrating automotive embedded software is a complex undertaking. The software is large. It is developed by many contributors. It is distributed over many control units connected by a variety of in-vehicle buses. Often much of the equipment or functions in a car are optional and regulatory requirements also vary between markets, leading to large combinatorial variations of software features. Targets running the software have to be cheap. Errors can be extremely expensive. New software and system features are demanded by the market and also by governmental regulations. Model-based design (MBD) of functional behaviour has been a big help in the recent past on the one hand, and on the other hand has by itself created new complexity by allowing relatively quick development of ever more features, especially when combined with autocoding. All this creates new challenges that did not exist a few years ago when feature development was slow. Major new challenges now are to tame all the complexity, get a system view on top of the individual functions, and to leverage executable system models to put more comprehensive testing into early phases of a development. Tools are required which really help those engineers and software developers. Their needs may not ask for a lot of computer science glamour. They can be quite basic and sophisticated concepts from computer science may find it difficult to find acceptance outside some niches. This presentation will outline the achievements, the current challenges and will point to upcoming tools and approaches that help meeting those challenges.

Model-based-design is nice but...

Without Model-Based-Design (MBD) todays automotive embedded systems would not exist. However, MBD generates its own challenges. Tools and concepts are helping in many areas, but the users needs often seem to outpace the capabilities of tools and processes, especially for large systems with complex software interacting across boundaries. System Design is underdeveloped. In this keynote, an assessment of the current situation is given as well as a vision of how developers should design and test systems in the future.

The future car: technology, methods and tools: panel session

The car of the future will be based on very advanced software and hardware technologies for improved safety and additional features such as autonomous driving, vehicle to vehicle communication, extensive communication and entertainment subsystems. What are the limiting factors for introducing new technology in cars? What are the standards, methods and tools that will be needed to bring these cars to market quickly and with guaranteed properties? The experts in the panel will address these questions and discuss their preferred solutions.The car of the future will be based on very advanced software and hardware technologies for improved safety and additional features such as autonomous driving, vehicle to vehicle communication, extensive communication and entertainment subsystems. What are the limiting factors for introducing new technology in cars? What are the standards, methods and tools that will be needed to bring these cars to market quickly and with guaranteed properties? The experts in the panel will address these questions and discuss their preferred solutions.