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.
Torque Measurements and Mechanized Driver for Correlating Exhaust Emission Test Facilities
Sae Technical Papers
1977 International Automotive Engineering Congress and Exposition ; 1977
1977-02-01
Conference paper
English
Torque measurements and mechanized driver for correlating exhaust emission test facilities.
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