The gradual change in mobility concepts from the combustion engine toward the electric motor has had impacts on test-bench measurement technology that will become more pronounced in the near future. Compared to classic combustion engines, electric drive systems have a significantly higher power density due to their smaller dimensions and lower weight. Heat loss of electric motors has been reduced to only about 10 percent, while over 90 percent of the electric energy is converted into mechanical energy. On top of that, electric drives in vehicles run at considerably higher rotational speeds, a fact that, at the same time, makes e-mobility test benches such a challenge for torque measurement technology.
The T12HP precision torque transducer is available to accomplish such optimization tasks. With a specified maximum permissible speed of up to 22,000 rpm, this series is available with an accuracy class of 0.02. This transducer’s high basic accuracy allows for a FlexRange™ function over the entire measuring range of up to 10 kNm. Therefore, users do not need to toggle between defined measurement ranges, but they can look closely at freely selectable measurement ranges.
A generally growing environmental awareness and the trend toward increased sustainability will impact the further development of e-mobility. Strain gauge-based torque sensors will continue to play an important role in the future and be an integral part of the process of optimizing machine and vehicle components.
This optimization process aims at acquiring and analyzing not only the mechanical quantity torque but also many other mechanical and electrical quantities in the development of electrified drive trains. This is exactly where HBM’s eDrive system for testing electric inverters and machines comes in: It acquires physical signals (e.g. torque), electrical signals (current and voltage), and digital bus signals (CAN) simultaneously, allowing for data to be calculated and analyzed in real time. The eDrive system provides you with a holistic system from a single source to enable you to analyze the drive train and its losses with the highest precision.
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.
