Sisu Axles rebuilt their test bench by installing the T40 torque transducers from HBM to produce more accurate measurements more easily. The test bench, which allows testing one axle or one axle component at a time, consists of a 193 kW electric drive motor plus two 98 kW electric motors, which act as brakes, replacing wheels. The drive motor represents the vehicle’s engine; the braking machines simulate the stresses caused by the loads from tires. The product development team can change test setup as needed, such as by using the braking machines as drive motors and adding any gears needed to generate a suitable ratio.
Reliable Measurement Results
The T40 torque transducers measure torque from the flanges of the electric motors. The MP60 amplifiers from HBM condition all torque signals from the sensors, which are transferred to the system via an analog output. The T40 is the optimal device for torque measurements in a test bench because It provides reliable measurement results, even in the most extreme conditions, such as those caused by surrounding electric disturbances, vibration and temperature. The small size of the T40 makes it easy to integrate into test benches. The sensors also have good resistance for axial and radial loads. The T40 requires no maintenance because its structure includes no wear parts.