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International Journal of Automotive Technology 2006;7(3): 269-276. |
| INFLUENCE OF OPERATION PATTERNS OF LIGHT-DUTY FREIGHT VEHICLES ON NOx POLLUTION AT LOCAL ROADSIDES |
| A. SAITO, S. UEKI, Y. TAKADA |
| Organization for the Promotion of Low Emission Vehicles |
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| ABSTRACT |
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c condition and vehicle’s emission level to the amount of emission at local roadsides, and to reveal the operation patterns which can reduce the emission peaks. NOx emission peaks of two light duty freight diesel vehicles which have different emission levels were evaluated by using an on-board measurement system. Tests were carried out with various payload conditions and road conditions. As a result many NOx emission peaks were observed when the vehicles were starting or accelerating at intersections. The test vehicle which has higher emission level caused higher frequency and level of NOx emission peaks. Shifting up at lower engine speed in combination with lower acceleration brought out not only reduction of NOx emission peaks level but also of CO2 mass emission. |
| Key Words:
Truck, Diesel engine, Acceleration, Road test, Pollution, Emission |
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