Keywords
electromobility
noise emission
noise measurements
safety
How to Cite
Abstract
Currently, great importance is attached to the issue of environmental protection, also in the context of the impact of transport on the environment. Limited fossil resources, climate change and global warming are driving the automotive industry towards more efficient and sustainable solutions. These problems force car manufacturers to use new technologies and alternative driving systems. Examples of such vehicles include electric cars (EVs) and hybrid cars (HEVs or PHEVs). The impact of using these means of transport on the emission of pollutants other than exhaust gases is an important issue. An example of such emissions is noise. Conventionally powered cars produce noise from their combustion engines and exhaust systems. All vehicles, whether conventionally or alternatively powered, emit noise as a result of the interaction between the tires and the road surface, as well as the air flowing over the body (aerodynamic noise). Superficially, it seems that electric cars produce less noise. This article measures noise outside passing electric, conventional and hybrid vehicles. Measurements were taken at speeds of 20 km/h, 50 km/h, and 80 km/h, and the results were presented in graphical form. The aim of this research is to investigate whether vehicles with hybrid and electric drives produce less noise than those with conventional drives.
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