Noise Assessment of Motorcycles Based on On-board Data in Real-world Traffic

Current test cycles do not adequately represent the real-world noise emissions of L-category vehicles. Therefore, as part of the LENS project, an on-board sensor system was developed at RWTH Aachen University to record the emissions of different motorcycle types under real driving conditions. The measurement data from three vehicles selected as examples show that strong accelerations are the main cause of high noise emissions. This highlights the need to expand test cycles to include such dynamic driving maneuvers for a more realistic assessment. …