Torque Measurements and Mechanized Driver for Correlating Exhaust Emission Test Facilities 770139

Our investigations have shown that the current calibration procedures for dynamometers do not suffice to obtain a good conformity between different dynamometers.As a criterion for dynamometer calibration, we use in two different ways the torque which is measured on the drive shaft of a test car. The static method yields the complete dynamometer characteristic: torque versus car speed.The dynamic method uses the averaged time integral of the torque measured over a driving cycle. Both methods supplement each other.In order to achieve a good reproducibility, a mechanized driver has been developed. Test results are discussed.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 43% off list price.
Login to see discount.
Special Offer: Purchase more aerospace standards and aerospace material specifications and save! AeroPaks off a customized subscription plan that lets you pay for just the documents that you need, when you need them.