MXsteerLink: smooth switching between HiL and SiL/MiL

MXsteerLink links our MXsteerHiL steering test bench with the MXsteerWheel RTpro steering force feedback unit. High-precision steering angles and steering torques are exchanged in real time, latency-free and in very fast cycles. This combination is essential for an authentic steering feel in applications both in the lab and on dynamic driving simulators. In coupled SiL/MiL and HiL mode, complete steering systems and steering-related functions can be made tangible for development engineers without a mechanical steering column connection – and without the need to install of the entire steering system in the cockpit. Sophisticated use cases such as steering tests, tire tests, ADAS functions and much more can be mapped.

Mapping a real steering feel in early development is an enormous challenge for engineers. Be it on the SiL/MiL or HiL test bench. In particular, the comparability between HiL and SiL applications, especially with regard to parameterization and validation of the steering models and ECU functions, involves a great deal of effort. Inadequate model mapping, complex parameterization, undesirable effects, errors or problems with the hardware are often detected too late in the development process today, so that reacting to them involves considerable effort, time and costs. In addition, dynamic driving simulators have space and weight problems when it comes to incorporating real steering.


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The MXsteerLink environment enables end-to-end support of the validation process in every phase of the V-model. Whether as a pure SiL/MiL test bench, as HiL with real steering hardware or as a driver-in-the-loop solution for dynamic driving simulators. This also applies to steer-by-wire applications. Coupling a force-feedback steering wheel (MXsteerWheel RTpro) with an MXsteerAct without any mechanical connection makes it possible to experience the steering feel independently of the environment. For dynamic driving simulators, only the force feedback steering wheel needs to be integrated into the simulator, while the HiL can be positioned in a different room. The connection between the test bench and the force feedback unit is made via cables, which can be integrated in any length according to customer requirements.

EtherCAT communication offers a universal interface for existing real-time systems at the customer.

Integration in driving simulators as SiL/MiL

In the early phase, when only the models at steering and vehicle level are available, our solution enables the models to be experienced and tested in all common driving simulators.

Coupling of SiL/MiL and HiL test bench

Test bench for the development of EPS and steer-by-wire steering systems, EPS application and validation of steering models in the laboratory.

Coupling the HiL test bench with the driving simulator

The HiL test bench combined with the MXsteerWheel RTpro force feedback unit makes it possible to experience real EPS and steer-by-wire steering systems in the driving simulator.


  • Authentic steering feel for applications in the lab and on dynamic driving simulators
  • Effective and agile decision-making in the early development phase
  • Easy switching between lab and driving simulator
  • Our systems are independent of real-time systems and can be connected to any existing customer environment or HIL system via EtherCAT communication
  • Mapping of various use cases such as steering tests, tire tests, ADAS functions
  • This environment supports the validation process in every phase of the V-model
  • High savings in time, effort and costs


MXsteerLink Architecture

Key facts of the MXsteerLink steering test bench

  • Steering test bench and force feedback unit combined create a real steering feel
  • The coupling of force feedback steering wheel and MXsteerAct without mechanical connection enables a steering feel independent of the environment
  • SiL/MiL and HiL combined in one test bench for effective and agile development of steering and ADAS functions, especially for steer-by-wire systems
  • Possibility of connecting all real-time systems via EtherCAT
  • Compatibility with MXeval evaluation software and all common development tools and simulation models
Tristan Schwandke
Solution Engineer | Sales
+49 1515 5345660
Kilian Jörg
Development Engineer Test Bench Systems​ | Development
+49 1511 8488430