HIL test bench for rear-axle steering systems

HIL test bench for rear-axle steering systems

Fields of application

  • Function development, optimisation and validation of rear-axle steering systems
  • Analysis of performance and control in a HIL-environment
  • Simulation and validation of rear-axle steering behaviour in failure scenarios
  • Automated HIL road and approval 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 fieldbus systems (CAN, FlexRay)
    • Integration of test item and vehicle models
  • Linear actuator to apply variable forces and positions
    • Counter force: ± 12 ... ± 25 kN
    • Stroke: ± 150 … 300 mm
    • Adjustment speed: 500 ... 750 mm / s
  • Powerful simulation of vehicle electrical systems incl. energy refeed
  • Cut-off relay adaptor for highly automated simulations of electrical failures
  • Measurement system to record
    • Control and power signal currents of the specimen actuator and ECU
    • Forces and positions
  • Models and interface with real-time hardware (e.g. MATLAB / Simulink, dSpace)
  • Compact dimensions and design for use in HIL labs