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Daimler 360 GRAD - FAKTEN zur Nachhaltigkeit 2008
Daimler Nachhaltigkeitsbericht 2008 / Environmental protection, innovation, and safety / Products and product use / Noise emissions
Noise emissions
Along with the airflow, a vehicle’s axles, steering system, tires, engine, and powertrain also have a major impact
on acoustic comfort. Cooperation between aero-acoustic experts and vehicle body and engine developers has
led to a reduction in both interior and exterior noise emissions in Daimler vehicles. The problem of traffic-related
noise cannot be solved by measures affecting the vehicles alone, however. Other important factors here are
increasing traffic densities, construction along roadways, driving habits, the surfaces and conditions of roads,
and tire properties. In general, the main contributory factors to noise in commercial vehicles are the mostly
rough tread patterns on truck tires, as well as vehicle bodies and the loads the trucks carry. Low-vibration
design, optimum engine encapsulation, and aerodynamically efficient cabs are key parameters that Daimler can
directly influence. The Group also works closely with body manufacturers to achieve optimum alignment of the
entire vehicle with a view to reducing noise emissions to a minimum.