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Heavy Duty Testing Cycles Development: A New Methodology
Technical Paper
2000-01-1860
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Testing cycles for heavy-duty vehicles are an important topic for authorities, manufacturers, fleet owners, etc. in order to assess exhaust gas emissions and fuel consumption. A new methodology was developed to derive representative testing cycles from velocity versus time driving information. During the development, the work was focussed on city-buses, but the methodology can be applied to heavy-duty vehicles in general.
The testing cycles are ‘distance-based’, meaning they impose goal speeds at each location. This implies that during acceleration phases, the accelerator-pedal - and gear lever in case of manual transmission - can be operated in a realistic way. The techniques for deriving this kind of testing cycle are proposed. Results of on-board emission and fuel consumption measurements employing these testing cycles are presented for two 19 tons, 160kW city buses, equipped with respectively a diesel and a CNG (stoechiometric) engine, and a 10 tons 112 kW diesel delivery truck.
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Citation
Bruneel, H., "Heavy Duty Testing Cycles Development: A New Methodology," SAE Technical Paper 2000-01-1860, 2000, https://doi.org/10.4271/2000-01-1860.Also In
References
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