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