Measurement of Automobile Exhaust Emissions under Realistic Road Conditions 871986

An exhaust gas measurement system for onboard use has been developed, which enables the direct and continuous determination of the exhaust mass emissions in vehicles on the road. Such measurements under realistic traffic conditions are a valuable supplement to measurements taken on test benches, the latter, however, still being necessary. In the last two years numerous test runs were undertaken. The reliability of the on-board system could be demonstrated and a very informative view of the exhaust emissions behavior of a vehicle on the road was obtained from the test results.


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