| Summary: | 碩士 === 國立勤益科技大學 === 專案管理研究所 === 104 === The study shows that 36% emission sources of PM2.5 pollution in Taiwan were from mobile sources, especially the locomotive, which released carbon monoxide more than vehicles. 40% sources of air pollution in metropolitans of Taiwan come from the locomotive.The world joined together in an initiative to put more electric motorcycles and scooters on the road to replace traditional locomotives . In order to reduce more damages to the environment, there is a company that redesigned the body and redefined the motor design of electricscooters.
This research used Six sigma DMAIC methodology to improve the problem of airtight test of water cooled motors of electric scooter. For definition and measurement, we define the damage of the mistake of water cooled motors processing. And establish the measurement to evaluate whether it achieving its quality improve ment goals.Further, the study analyzed the reason of poor processing through cause and effect chart. We redesign the fixtures in order to improve the problem of airtight test of water cooled motors of electric motors; Furth more, we use the method of project management to keep monitoring the quality and also improve productivity and yield rate.
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