The project for this year will continue to assist the EPA (Environmental Protection Agency) with the management of motorcycle exhaust pollution, including the certification of new vehicle model, the audition of new vehicle, examination on emission control components, etc.. The project will also continue to assist the EPA to modify the unsuitable regulations relative to the “Issue and Annulment of the Certificate for Qualification for Examination and Inspection of Exhausts of Motorcycles.” if necessary. In addition, the project will implement the recall investigative tests for the in-used motorcycles. Until now, the project had issued 191 certificates, including 700 vehicle models. The project also had completed audits for 96 motorcycles, and all had passed the test. The project also had examined 9 motorcycles for their emission control components, and all had passed the test. The manufacturers had applied for 31 pieces of endurance tests this year. For the emission quality control in production line, we found that some engine families’ CO had higher emissions and variation, but the HC+NOx didn’t. For the green motorcycle ranking, the Techno GT 125 for KYMCO was the best. For the survey of mutual recognition of motorcycle emission certificate, it needs the Taiwan Government to negotiate with other countries. The electronic certification management and data exchange system had been laid out this year and we also had completed the first version application system. For the 6th stage emission regulation, WMTC should be merged into the proceeding regulation. In the deterioration factors study, we found the deterioration factor may be higher for greater than 150cc and lower for less than 50cc, the deterioration factor for injection system is lower than the carburetor system. The project had surveyed the EU and the Japan 2007 model year motorcycle certification data, the analysis showed most of the EU certification data can’t pass our emission regulations respectively, and all the Japan certification data can’t pass our emission regulations. In this project, we studied the correlation between emission and idle speed, the emissions comparison among driving patterns. Test results showed the idle emission may increase with increasing speed, the CO emission in Stage 4 were higher than that in WMTC and Stage 5, the HC and NOx emission in WMTC and Stage 5 showed good correlation. In the maintenance factor study, the CO and HC emissions could reduce by way of maintenance, but the NOx didn’t. We also found the CO and NOx emissions may rise for the vehicle speed over 40 km/h. For the motorcycle exhaust emission estimation, we had estimated our domestic motorcycle exhaust CO, HC, NOx and CO2 emission are 219,747, 120,326, 12,301, and 3,405 tons per year. For the in-use motorcycle investigation tests, all the 10 engine families had passed the tests.

n e w m o d e l c e r t i f i c a t i o n , g r e e n m o t o r c y c l e , l i f e - c y c l e , i n - u s e m o t o r c y c l e