Study Reveals Road Noise’s Influence on Vehicle Design

A groundbreaking research project conducted at Renault has shed light on the impact of road conditions on the acoustic performance of electric vehicles. The study revealed that road quality plays a significant role in limiting the range of electric vehicles due to acoustic disturbances.

The innovative APACHE (Appraisal of Pavement Acoustic CHaracteristics and Energy Efficiency) programme developed by Renault focuses on monitoring road noise to create detailed maps of the acoustic conditions of the road network. By analyzing road noise patterns, the programme aims to identify areas where road conditions are particularly noisy and in need of improvement.

Renault has implemented noise cancellation technology in its vehicles to mitigate the impact of road noise on passengers. This technology utilizes sound sensors strategically placed around the vehicle to detect variations in road noise. When increased noise levels are detected, the sensors emit sound waves into the cabin, effectively canceling out the unwanted noise and creating a more pleasant driving experience for passengers.

Thomas Antoine, Expert Leader in Noise & Vibration Technology at Renault, emphasized the broader implications of the APACHE technology beyond vehicle comfort. He highlighted that the technology not only enhances the acoustic environment inside vehicles but also provides valuable insights for local authorities to make informed decisions regarding road maintenance budgets.

Through a collaboration with Bruitparif, the Noise Observatory for the Île de France region, Renault's research team gained access to crucial data on road usage patterns. This data proved essential in understanding the relationship between road conditions, noise pollution, and the degradation rate of roads, particularly in the context of electric vehicle performance.