A SYSTEMS ENGINEERING ENVIRONMENT FORINTEGRATED AUTOMOTIVE POWERTRAINDEVELOPMENT

摘要

Automotive powertrain control system (PCS) development faces tightening environmentalrnrequirements, shortening development cycle times and growing complexity. To cope with suchrnan environment, PCS development is moving from a traditional evolutionary to a structuredrnapproach. The structured approach is supported by computerised structured analysis methods.rnHowever, these methods concentrate on the functional and interface requirements of the product.rnThis paper aims to describe how a systems engineering environment (SEE) can be used forrnintegrated PCS development by addressing not only product functional and interfacernrequirements but also life cycle process and organisational requirements. The particular SEErnused, a commercial software package, provides:rn· notations from different modelling paradigms, used for integrated functional, product, processrnand organisational modelling;rn· cross-references, used to link functional, product and life-cycle processes attributes;rn· frames to capture further information about each data items (e.g. CAD drawings).rnA major benefit of the application of the SEE for an integrated PCS development is the abilityrnto investigate early in the product development/evolution process the interactions betweenrnrequirements and attributes not only of the product but also of its life cycle processes andrndevelopment organisation. It is demonstrated how an SEE can be used to provide betterrnproduct quality, lower life cycle cost and shorter development time.rnThe application of a systems engineering approach to a product, its life cycle processes and itsrndevelopment organisation in an integrated manner encompasses concurrent engineering. Itrnprovides a much broader scope for product development, in this case, the PCS subsystem.