Rapid System Design and Development Methods for GM's Precept Hybrid Electric Vehicle: Enabler of Multiple Battery Technologies

摘要

This paper provides an overview and example application of an advanced rapid system development methodology used successfully in the development of the General Motors Precept Hybrid Electric Vehicle under the Partnership for a New Generation of Vehicles (PNGV) program. This process consists of three key steps. First, Hatley-Pirbhai system specification methods facilitate the development of clear functional requirements. Second, the functional requirements for the system are allocated to the physical systems to meet system requirements and vehicle architecture constraints. Third, the system requirements for control functions are implemented on a rapid prototyping controller for system testing and development. One key strength of these methods is their ability to facilitate adaptive system architectures. The benefits of these methods are demonstrated by discussion of their application to the design and development of two alternative high voltage battery systems -Nickel Metal Hydride and Lithium Polymer - for use in the GM Precept hybrid electric vehicle.