Study on Performance of Vehicle with Different Types of 12 V Starter Batteries Using HILS

There is an active technological development effort into the fuel efficiency enhancement of the existing internal combustion engine vehicles. As part of this technological development effort, researches are being conducted on the use of lithium batteries as the starter battery for internal combustion engine vehicles, in place of lead–acid batteries. While the use of lithium starter battery is expected to result in various advantages and disadvantages, there is a lack of specific research on this area. Therefore, in this paper, we present a quantitative analysis of the characteristics and performance of internal combustion engine vehicles with different types of starter batteries. For this purpose, we simulate the power-net system of a vehicle, including charging control, through a test bench based on actual vehicle data, and develop an automotive power-net hardware-in-the-loop simulation (HILS) by combining the test bench with a powertrain model. HILS-based test and evaluation were performed for vehicles equipped with absorbent glass mat (AGM) battery and those with lithium battery, using an actual road evaluation pattern to compare their characteristics and performance with impedance measurements for each type of battery.