HIL test bench with climatic chamber for rear-axle steering systems

HIL test bench with climatic chamber for rear-axle steering systems

Fields of application

  • Function development, optimisation and validation for rear-axle steering systems
  • Analysis of performance parameters and control quality within the HIL network and under certain climatic conditions
  • Simulation and validation of rear-axle steering behaviour in failure scenarios
  • Automated HIL road and approval tests as well as endurance tests

    Test bench architecture and modules


    • Mechatronic integration of rear-axle steering systems,
      e.g. via
      • Flexibly adjustable and close-to-application mechanical fi xtures for different types of rear-axle steering systems
      • Integration of control devices, sensors and fi eldbus systems (CAN, FlexRay)
      • Integration of test item and vehicle models
    • Hydraulic actuator to test different forces and positions
      • Counter force: ± 12 ... ± 25 kN
      • Stroke: ± 150 ... 300 mm
      • Adjustment speed: 500 ... 1000 mm / s


    • Powerful simulation of vehicle electrical systems incl. energy recovery
    • Cut-off relay adaptor for highly automated simulations of electrical failures
    • Metrology to record
      • Control and power signal currents of the specimen actuator and ECU
      • Forces, positions, angles, torques and temperatures
    • Models and interface with real-time hardware (e.g. MATLAB / Simulink, dSpace)
    • Robust design for functional tests and deployment in a testing environment