Test Rig for Steering Systems

Fields of application

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

Test bench architecture and modules

  • Mechatronic integration of steering systems, e.g. via
    • Flexibly adjustable and close-to-application mechanical fixtures for different types of rear-axle steering systems
    • Integration of control devices, sensors and fieldbus systems (CAN, FlexRay)
    • Integration of test item and vehicle models
  • Hydraulic actuator to test different forces and positions
    • Counter force: ± 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