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 SIMULATION TOOLS TESTING TOOLS Testbed Automation Powertrain Calibration Monitoring, Control, Simulation Test Information Management TESTING EQUIPMENT SIMULATION TOOLS TESTING TOOLS CUSTOMER SERVICES BENEFITS AT A GLANCE • Cost saving by transferring tests from the road to the dynamic engine testbed • No external hardware required to enable on-line simulation • Models can be fully parameterized • Integration of customer components by using AVL ARTE.Lab™ The AVL models for automatic transmission, CVT and double clutch transmission (DCT) allow the simulation of the expected load on the combustion engine in the vehicle in a realistic and reproducible way. The standard AVL simulation models for the driver, the vehicle and the drive train are additionally used for this purpose. In order to receive realistic measurement results of legal emission test cycles, e.g. FTP75, the simulation integrates all important operating modes of the engine in the vehicle. This includes the vehicle speed control via accelerator pedal and vehicle brake as well as the simulation of realistic starting from rest and coast down. / 210 BENEFITS AT A GLANCE • Reliable online monitoring of shaft overload • Easy-to-adapt shaft characteristics using online parameterization APPLICATION The developed algorithm enables reliable monitoring in all operating states, including stationary and transient operation as well as during engine start and stop. In manual and automat ic testbed operation, critical system states with regard to the shaft load are detected, and the unit under test can be stopped. shaft overload! 78000 81000 84000 87000 90000 93000 96000 99000 102000 105000 108000 111000 Unexpected behavior of the unit under test can excite the testbed shaft connection. This leads to a high demand for monitoring and safety systems. Existing monitoring functions protect the engine and dyno system. AVL’s new online shaft monitoring offers a solution to protect the shaft through online detection of shaft overload resulting from undesired oscillations. Real-Time Simulation AVL Transmission Models Prevention of Damage Online Shaft Monitoring recorder_time ms 9 8 7 6 5 4 3 2 1 0 -1 2000 1800 1600 1400 1200 1000 800 600 400 200 0 2400 2100 1800 1500 1200 900 600 300 0 -300 -600 shaft_overload - T_LDCELL Nm 2.0 1.6 1.2 0.8 0.4 0.0 shaft_overload_bitL - 150 100 50 0 -50 ALPHA_d % SPEED - recorder_time ms 93349.000 108067.000 14718.000 SPEED - 1391.930 1204.870 -187.060 T_LDCELL Nm 5.556 150.612 145.056 ALPHA_d % 32.900 0.000 -32.900 shaft_overload_bit - 0.000 1.003 1.003 shaft_overload - 0.079 2.444 2.365 Realistic gearshift behaviour.
Solutions Katalog 2015_E
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