Evaluation of Psychoacoustic Parameters on Internal Combustion Engine Vehicle and Electric Vehicle: Case Study of Armored Vehicle

Abstract

In this study, psychoacoustic evaluation was performed to identify the sound characteristics of the armored Internal Combustion Engine Vehicle (ICEV) and Electric Vehicle (EV) based on the loudness, roughness, and sharpness parameters. The evaluation was performed on both static and dynamic conditions such as engine on, engine on with AC, constant speed of 20 km/h on smooth roads, and acceleration. The results showed that under the engine on and acceleration conditions, significant differences were found in loudness (0.7-18.4 sone average difference), roughness (0.035-0.058 asper average difference), and sharpness (0.16-0.28 acum difference on average). Meanwhile, there was no significant difference in the Roughness parameter between ICEV and EV on the condition of the engine on with AC and a constant speed of 20km/hour on a smooth road. Significant differences were found in loudness (1.6-4.2 sones average difference) and sharpness (0.11-0.27 acum average difference). Based on the test results in this study, it can be seen that there are differences in sound characteristics between ICEV and EV so that they can cause different perceptions from users.