DRIVELINE TESTING SOLUTIONS
Torque Validation Test Stand for Race Cars
The Torque Validation Test Stand is a semi-mobile test stand which confirms the validity of data from torque sensors widely used in motorsport applications. This machine has been designed to benchmark these sensors, ensuring that there is no interference so that the recorded values match what would be recorded while installed on a vehicle. Reference data and data obtained by the torque sensor is measured synchronously and plotted along with the calculated deviation. In this way, motorsport teams can compete with confidence, knowing that the sensor installed on the vehicle is accurate and will not fail under scrutiny from the governing body.
Key Features
The key feature of this test rig is the acquisition and display of the torque measured in the field by the motorsport torque sensor. It offers high accuracy calibration and calibration verification of torque sensors (indoor and outdoor). One of the most stringent requirements of the rig is avoiding external magnetic sources close to the torque sensor which would affect the measurement of the torque. Not only have magnetic sources been avoided, but the minimum mass of ferromagnetic components (frame, angle plates etc.) are used on the torque actuation unit.
The test rig has a servo-controlled actuating unit formed by the following parts:
- Hydraulic rotary actuator/motor rated +/- 1,000 Nm
- Single 2 stage Moog servo valve rated 38 l/min measured with a pressure drop of 7 MPa
- Angle transducer (incremental encoder) with high accuracy, calibrated for +/-50 degrees
- Adapter flange to mechanically engage and disengage the output shaft of the rotary actuator from the flange (which is designed to allow mounting the calibrated weights measuring arm)
