The development of engines having steadily improving performances and features requires the use of highly dynamic test and measure instruments. From this point of view, a dynamic test bench like ONDA corresponds to the state of the art in the field of test benches.
A test bench is considered as machine able to absorb mechanical energy. Test benches are used for different purposes, such as motor power measure during a gear or transmission test. Motor tests actually require high-performance systems, since the features of the tested engine/motor have been improving steadily and the tests to be carried out become more and more complex. See for instance the regulations on emissions, absorbing and noise, that require both for the project and test phase more and more efficient instruments. Another aspect regarding the test bench evolution is that many tests now are taken into the test cell, while in the past they could be carried out only on the road. "Road to rig" means in fact that the final tests are transferred to the test cell. The vehicle features are simulated through a system able to brake and carry the engine. Reduced response times help simulating the features of a real vehicle . Friction, inertia, air resistance, vehicle mass can be easily modified to simulate different situations.

Application field

The system was developped for torque/speed control of three-phase asynchronous motors, voltage 380 - 520 VAC .

General operation data

Photos

Manual

Download