As an automotive industry partner, Siemens A&D, in its vehicle test and inspection systems division provides innovative solutions for testing vehicles and vehicle components throughout the world. By using the latest HBK torque measurement technology new ground was also broken when designing a transmission test rig for SCANIA in Sweden. A 4-machine test rig was installed at the SCANIA Technical Centre in Södertälje in Sweden to determine data about fatigue, service life and function of truck rear axle transmissions. It was used to develop rear axle transmissions, particularly for heavy goods vehicles with and without a tandem-axle. This is why a total of four electric machines are needed in the test room as drive and loading units.
With a fast control system (CATSTC), robust test rig control and a flexible automation system (CATSNT), the highly functional test rig is able to control a wide variety of different machine configurations (2, 3 or 4 machine operation) and accompanying control modes in the required dynamic response.
To ensure that the test rig was readily available, the chosen drive concept had the following advantages:
Four HBK T10FM torque flanges for torques to a maximum of 40 kN·m are used to record the torques at the test specimen. The sensor data is conditioned by HBK's MP60DP amplifiers. These deliver the measurement data to the automation system digitally via an integrated Profibus DP interface, without additional conversion.
…is designed as a loading unit with a lever arm and a tension train. A reference measurement chain was provided by a Z4A reference transducer in conjunction with an MP30DP digital amplifier. The calibration machine can be used alternately for all four measuring points.
The test rig is a forward-looking solution, both for fatigue testing and for service life trials, as well as for testing the functionality of rear axles for trucks and coaches. High-precision and dynamically correct measurement with torque flanges right on the drive train are the optimum conditions for providing a metrological solution.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.