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Virtual Proving Ground (VPG) is a very useful and effective method to predict the vehicle performances such as ride & handling, NVH, and durability. One of the main components of VPG is a virtual road. As a previous virtual road, 3-Dimesional Virtual and Sharp Belgian Road (3-D VSBR) contains only the height information of a Belgian road. Thus, it is mainly used for the prediction of vertical directional road loads. In this paper, 3-Dimensional Virtual Block Belgian Road (3-D VBBR) is suggested. It can not only describe the height information but also consider the shapes and sizes of the hexahedral blocks in a Belgian road. Therefore, it can be used for the prediction of longitudinal, lateral, and vertical directional road loads.

The electrical power system is the vital lifeline to most of the control systems on modern vehicles. The demands on the system are highly complex, and a detailed understanding of the system behavior is necessary both to the process of systems integration and to the economic design of a specific control system or actuator. The vehicle electric power system, which consists of two major components: a generator and a battery, has to provide numerous electrical and electronic systems with enough electrical energy. A detailed understanding of the characteristics of the electric power system, electrical load demands, and the driving environment such as road, season, and vehicle weight are required when the capacities of the generator and the battery are to be determined for a vehicle. An easy-to-use and inexpensive simulation program may be needed to avoid the over/under design problem of the electric power system. A vehicle electric power simulator is developed in this study.

The electric power system of a modern vehicle has to supply enough electrical energy to numerous electrical and electronic systems. The electric power system of a vehicle consists of two major components: a generator and a battery. A detailed understanding of the characteristics of the electric power system, electrical load demands, and the driving environment such as road, season, and vehicle weight are required when the capacities of the generator and the battery are to be determined for a vehicle. In order to avoid the over/under design problem of the electric power system, an easy-to-use and inexpensive simulation program may be needed. In this study, a vehicle electric power simulator is developed. The simulator can be utilized to determine the optimized capacities of generators and batteries appropriately. To improve the flexibility and easy usage of the simulation program, the program is organized in modular structures, and is run on a PC.