AVL DynoExact / 84 SIMULATION SOLUTIONS TEST SYSTEM SOLUTIONS Electrification Battery Test Systems E-Motor Test Systems Power Electronics Test Systems Component Test Systems MBD on the virtual testbed Engine Test Systems End of Line Test Systems Real Life Test Systems Driveline Test Systems Fuel and Lube Test Systems Emission Test Systems and Certification Vehicle Test Systems Racing Test Systems TESTING EQUIPMENT Dynamometers and Actuators Vehicle Testbeds Test Cell Mechanics and Control Room Media Conditioning Consumption Measurement Injection Testing Combustion Measurement Emission Analysis and Measurement In Vehicle Measurement TESTING EQUIPMENT SIMULATION TOOLS TESTING TOOLS CUSTOMER SERVICES 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. TORQUE MEASUREMENT It is possible to choose between two different types of cradle bearings. The first type is with ball bearings as used in Eddy current dynamometers, and the second type is with friction- and maintenance-free hydrostatic bearings. The bending beam that is 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 corrected with the highly accurate actual torque signal. Therefore, a fast and accurate torque signal is available for highly dynamic control loops. APPLICATIONS • R&D, quality and endurance testing for engine and components • Precise vehicle and driver simulation as well as drive- ability optimisation 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 • Possibility of torque calibration check during operation • Possibility to recalibrate the dyno down to half of the dynamometer nominal torque to increase the torque measurement accuracy for small engines • Accurate high dynamic torque control • Possibility 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
Solutionskatalog2014_E
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