16.7.2019. Since 1. July 2019 is in the case of electric cars, the installation of a warngeräusch generator duty. A new EU regulation.
It requires that, first of all, in newly certified Hybrid, electric and fuel cell vehicles – trucks and buses – the Acoustic Vehicle Alerting System (AVAS) for the protection of other road users installed must be.
In the EU, the Warngeräusch is required up to a speed of 20 km/h. The regulation formulated in a very detailed environment, such as AVAS Sound must sound and how not to. This applies, for example, for the minimum and maximum volume, as well as for certain Noise components.
The electrified Mercedes give a voice to
Under these and much more guidelines, the sound experts in the acoustic test facilities at the Mercedes-Benz technology Center (MTC) in Sindelfingen, Germany, to give the electrified Mercedes with a voice.
In the exterior noise, a personalized E-Sound test benches with special microphones for each of the electrical model is developed. Until the result is perfect, will. always be simulated again, measured, evaluated and optimised in Detail For the subsequent test is a very sensitive companion – the kind of head trips in addition. He records the finest sounds and comes close to the human Hear is impressive.
Other countries, other customs
For the EU, Japan, and China, the Mercedes-Benz AVAS Sound differs only slightly. For the USA, other requirements, for example, of the volume to apply. In addition, the vehicle must already produce in the state at the time the gear is engaged, a sound that is up to 30 km/h louder. The switch-off capability of the AVAS by the customer is prohibited in almost all countries.
The exterior noise test rig at the Mercedes-Benz technology Center (MTC) in Sindelfingen: The futuristic-looking space is lined with sound-absorbing Material. Here is developed with special microphones for each electrical model of a personalized E-Sound. Until the result is perfect, will.always be simulated again, measured, evaluated and optimised in Detail
