Vehicle Plant Modeling and Simulation to Optimize Mild Hybrid 48V BAS (Belt-driven Alternator Starter) System Controller Algorithm Design

Abstract

It has already been 20 years since Toyota introduced a hybrid vehicle call Prius. Many Hybrid vehicles have been produced since then, but even so many years have passed.7 There is still a long way to the popularization of the hybrid vehicle. It is still very low compared to the total number of vehicles. Why? That is probably due to the cost of the Hybrid system being added.21 Even though Hybrid vehicles are eco-friendly and high fuel efficiency, the cost of producing the vehicle is too high compared to the benefits to the customer.18 The cost is about $5,000 which is too much. The very cost was a problem which is stumbling block to popularization. To solve this problem, 48V BAS (Belt-driven alternator starter) hybrid system is proposed. This is the Mild Hybrid compared to the Toyota Prius. This system can design the entire hybrid system at about $800.20 The problem in research and development organization of our company is that it is difficult to understand the development contents because we outsourced the various modeling to universities and professional developers. In order to solve this problem, we set it as a GSEP project. The basic model was based on the EV (electric car) model that was previously performed in our company. And then the necessary parts from the 48V BAS have been added. The main point of this project is the vehicle modeling that is the target of the high level controller –EDU. Generation of the input variable (output variable) which required for high level controller was simulated.