Summary: | 碩士 === 國立交通大學 === 管理學院工業工程與管理學程 === 105 === On Board Diagnostics (OBD) is an electronic product designed for monitoring vehicle exhaust of hazardous gases and engine operation, and it also reports engine abnormal situations to vehicle driver. Knowing that the vehicle installed with OBD can effectively reduce the hazardous exhaust and traffic accidents in England, the Ministry of Communication in Taiwan decided to require all vehicles that use petrochemical fuel to have an OBD stalled. Since the safety of vehicle driver is closely related to the reliability and the quality of the OBD products, OBD product must meet their reliability test standards and conform to quality requirements. In this case, the reliability of OBD products should always be considered first. The main objective of this study is to establish a procedure to improve OBD product’s reliability and stability using failure analysis and reliability evaluation. The second generation On Board Diagnostics (OBD-II) was utilized as a case study to illustrate the effectiveness of the proposed method. The data used in this study included OBD-II FMEA data collected in the product design and manufacture stage, the failure correction and maintenance data. Through contrasting, comparing, checking and further analyzing the data using the proposed procedure, it is verified that the proposed procedure can provide an essence and effective counter-measure for fail prevention in OBD-II product design and manufacture stage, and the product reliability will thus be promoted.
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