The automobile industry has recently proposed a transition from 14V to 42V automobile electrical systems. Even though considerable technical advancements have been achieved, the overall cost of implementing the proposed higher voltage architectures still exceeds that of the currently employed 14V systems. Despite the high cost of the 42V systems, many in the industry are convinced that the push to 42V systems is necessary, and that the transition will be realized in the near future. To implement the 42V transition successfully, the values it affords must justify the costs. This study set out to identify possible areas of these values, particularly opportunities enabled by a system-level design. This was achieved by examining the preferences of each individual design group in the electrical system using multi-attribute utility analysis, and the interactions between groups with differing strategic objectives using the Edgeworth box diagrams. These methodologies were developed to assess the values of design choices. The applicability of these methodologies in guiding decision makers toward design choices with maximum efficiency was demonstrated.These methodologies were developed to assess the values of design choices. The applicability of these methodologies in guiding decision makers toward design choices with maximum efficiency was demonstrated.
|Title||:||Strategic Evaluation of the Development of 42V Automotive Electrical System Using Multi-attribute Utility Analysis|
|Author||:||Justin I.-Hao Kung, Massachusetts Institute of Technology. Technology and Policy Program, MIT/Industry Consortium on Advanced Automotive Electrical/Electronic Components and Systems|