Model Based Design of Robust Vehicle Power Networks

Abstract

Electrical power requirements for vehicles continue to increase. Future vehicle applications require the development of reliable and robust power supply strategies that operate over various ambient temperatures and driving conditions. Insufficient charge balance is one of the major concerns for conventional lead-acid battery systems when operated with limited charging times during short journeys or extreme climate conditions. For vehicle power supply analysis, a detailed understanding of the operational characteristics of the major components and how they interact as a part of the electric power system, including environmental and road conditions, is essential if the analysis is to aid system optimization. This paper presents a model based technique that enhances the process of vehicle electrical power system design. Vehicle system optimization using virtual prototypes has become critically important as more electrical features are added to future vehicles. Real vehicle data has been used to validate the models performance against specific design acceptance criteria. The validation measurements have been performed for different battery and ambient temperature conditions in order to demonstrate the accurate prediction of the simulation and modeling approach.

Electronic control unit modelling for automotive wire harness simulation using the Capital Harness system

“…Performing a simulation requires not only a wire harness design tool supporting the simulation function but also models of the electrical systems installed in the wire harness [2,5]. The Saber tool is a very powerful simulation tool, and an investigation has been reported on the model-based design of a vehicle electrical system with the Saber tool [6]. However, it focuses on the performance of the system, even though the wire harness is considered as an input parameter of the power supply system and, thus, the model is more complex than is required for wire *Corresponding author: Department of Electronics Convergence Engineering, Kwangwoon University, Seoul, Republic of Korea.…”