/ 103 AVL DynoExact The outstanding measuring accuracy and control dynamics offer engineers a universal tool for research and development related to engines and powertrain systems. More than 1,400 systems have already been installed. The dynamometer was developed by AVL under real test cell conditions. Existing dynos can be upgraded with new control systems. CHARACTERISTICS It is possible to choose between two different types of cradle bearings. The first type uses ��all ��earings as used in eddy current dynamometers, and the second type uses friction- and maintenance-free hydrostatic bearings. The bending beam used allows more movement than a load cell in the cradle bearings which increases the life span of the bearings. All cradle parts are covered for safety reasons. The built-in fast torque calculator is optimized with the highly accurate actual torque signal. Therefore, a fast and accurate torque signal is created for highly dynamic control loops. APPLICATION • R&D, quality and endurance testing for engine and components • Precise vehicle and driver simulation as well as driveability optimization in an engine test cell • Dynamic engine test for racing LOAD UNIT FOR ENGINE TEST CELLS Highly precise, pendulum-mounted, robust AC drive system with a state-ofthe art 4Q-IGBT converter for speed and torque-controlled operation. A real-time torque calculator also provides the shaft torque of the machine in addition to the electric torque (air-gap torque). BENEFITS AT A GLANCE • Very high torque accuracy with hydrostatic bearings option • Option of torque calibration check during operation • Option to recalibrate the dyno down to half of the dynamo meter nominal torque to increase the torque measurement accuracy for small engines • Accurate high dynamic torque control • Option of precise vehicle simulation in the test cell • Robust industrial design for operation under extreme ambient and environmental conditions • Easy installation and commissioning due to precommissioned components examined in a shop test
Solutionskatalog_2017_E
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