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.
Citation: Klingenberg, H., Kinne, D., and Schürmann, D., "Torque Measurements and Mechanized Driver for Correlating Exhaust Emission Test Facilities," SAE Technical Paper 770139, 1977, https://doi.org/10.4271/770139. Download Citation
Author(s):
H. Klingenberg, D. Kinne, D. Schürmann
Affiliated:
Research and Development, Volkswagenwerk AG Wolfsburg (Germany)
Pages: 12
Event:
1977 International Automotive Engineering Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Exhaust emissions
Environmental testing
Emissions certification
Vehicle drivers
Calibration
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