Compact Steering Test Bench with Spindle Actuator
This compact test system lets developers insert real forces and torques so they can install and test the entire steering mechanics. These systems are typically used for software integration tests, software release tests, and testing realistic driving maneuvers that require average dynamics.
Features:
- Compact steering test bench for electromechanical power steering
- Servomotor on the steering column (C-EPS)
- Servomotor on the steering box (R-EPS)
- Synchronous motor for simulating the driver torque and the steering wheel position
- Synchronous motor with recirculating ball screw for simulating the road forces acting on the tie rods
- Prepared for virtual test drives thanks to the seamless integration into the ASM Vehicle Dynamics Model
- Stimulus generators implemented in MATLAB®/Simulink® for synthetic stimuli
- Dimensions: 3 m x 1 m x 2.2 m (approx. 9.8 x 3.3 x 7.2 ft)
- Weight: approx. 900 kg (approx. 1,984 lb)
- Connected load: 18 kW
References:
- Various turn-key projects for OEMs in Europe, North America, and Asia
Steering robot: 50 Nm motor with special winding
| 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 |
Steering robot: 27 Nm motor with standard winding
| 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) or superimposed feedback control (torque transducer) |
| Control strategy position | Cascade control with subsidiary speed and torque control |
| Maximum torque [Nm] | 27 |
| Maximum displacement [deg] | unlimited |
| Maximum velocity [rpm] | 3000 |
| 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 |
Rack actuator: recirculating ballscrew transmission
| Motor Characteristics | |
|---|---|
| Motor | Synchronous motor with recirculating ballscrew transmission |
| Motor encoder | HIPERFACE® motor feedback system |
| Servo amplifier | LTI Servo One |
| Control strategy force | Superimposed feedback control (force transducer and disturbance variable compensation) |
| Control strategy position | Cascade control with subsidiary speed and force control |
| Maximum force [N] | 20000 |
| Maximal displacement [m] | ±150e-3 |
| Maximal velocity [m/s] | ±400e-3 |
| Steady State Control Accuracy | |
|---|---|
| Force [N] | ±100 (depends on device under test and force transducer) |
| Position [m] | ±0.2e-3 |
| Force Sensor Characteristics | |
|---|---|
| Measurement range [N] | ±20000 |
| Accuracy [N] | 20 |
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