Endurance test bench for EPS steering systems
Fields of application
- Endurance tests for electro-mechanical steering systems (ESP steering systems)
- Fatigue strength validation
- Validation of all functions and performance data within the expected service life
- Real-time fatigue load simulations and standardised tests with synthetic nominal data profiles
- Determination of steering parameters (e.g. support characteristic, sliding force, …)
Test bench architecture and modules
- Hydraulic rotary actuator to test different forces and positions
- Force: Lever-dependent. Torques: >± 5.7 kN
- Stroke: Lever-dependent. Rotation angle: ± 55°.
Angular velocity: 2.5 rad / s - Force and position control
- Highly dynamic and accurate servo drives for steering purposes
- Torques: ± 35 ... ± 160 Nm
- Steering rate: ± 2100 ° / s
- Angle and torque control
- High-performance power supply unit to simulate vehicle electrical systems incl. energy recovery
- Metrology to record
- Electric signals (currents, voltages) as well as the actuator performance of a test item
- Forces, positions, angles, torques and temperatures
- Compact dimensions, also available as a small series for production quality control
- Integration in a central hydraulic supply system possible, or alternatively deployable with a separate hydraulic supply
