The illustrated setup represents an EPS test bench for applications that require maximum dynamics and precision. The linear motors can insert tire-road forces even more precisely and with high frequencies. Developers can thoroughly qualify and analyze steering systems for passenger cars and commercial vehicles by replaying measurement data, using synthetic test vectors and performing closed-loop simulation with a vehicle model. Because these steering test benches fulfill the highest requirements and even make it possible to determine the transfer behavior, they optimally support the development process for steering ECUs.
Features:
References:
Motor Characteristics | ||
---|---|---|
Motor | Synchronous motor without transmission | |
Motor encoder | HIPERFACE® motor feedback-system | |
Servo amplifier | LTI Servo One | |
Control strategy torque | Forward control (motor current) | |
Control strategy position | Cascade control with subsidiary speed and torque control | |
Maximum continuous torque [Nm] | 50 | |
Maximum displacement [deg] | Unlimited | |
Maximum speed [rpm] | 500 |
Steady State Control Accuracy | ||
---|---|---|
Torque [Nm] | ±0.5 (depends on device under test and torque transducer) | |
Position [deg] | ±0.01 |
Torque Sensor Characteristics | ||
---|---|---|
Measurement range [Nm] | ±50 | |
Accuracy [Nm] | ±0.25 |
Motor Characteristics | ||
---|---|---|
Motor | Synchronous linear motor | |
Motor encoder | HIPERFACE® motor feedback system | |
Servo amplifier | LTI Servo One | |
Control strategy force | Overlain feedback control (force transducer and disturbance variable compensation) | |
Control strategy position | Cascade control with subsidiary speed and force control | |
Maximum continuous force [N] | 15000 | |
Maximum displacement [m] | ±200e-3 | |
Maximum velocity [m/s] | ±900e-3 |
Steady State Control Accuracy | ||
---|---|---|
Force [N] | ±50 (Depends on device under test and force transducer) | |
Position [m] | ±0.1e-3 |
Force Sensor Characteristics | ||
---|---|---|
Measurement range [N] | ±20000 | |
Accuracy [N] | 20 |
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