Noise,
vibration and harshness (NVH) is fast becoming a priority for customers
shopping for new cars. trend has now expanded to entry-level consumers too, who
want a relatively quiet cabin. Acting as a reflection of quality and
engineering, companies are leaving no stone unturned to offer the best to the
consumers by using better proofing and insulation.
Ford, however, went a step ahead on the new Endeavour, which was
launched in India recently. Ford engineers have used Active Noise Cancellation
(ANC) technology in this vehicle to make the cabin quieter than what is
possible by using conventional technology.
Concept :one needs to stop the
sound waves from the engine, air and other external elements from entering the
cabin. This is mainly achieved with the usage of various types of insulation
materials placed at specially designated areas of the vehicle. The ANC instead
uses microphones inside the cabin to create counter-waves using the sound
system to eradicate/ lower unwanted noise.
There are three microphones mounted in the Endeavour's
interior headliner – two over the first seating row and one over the rear, to
detect and measure background noise. The ANC module then creates opposing sound
waves to counteract it, helping to provide a comfortable and quiet cabin
experience for Endeavour occupants.
The ANC
system is capable of countering background noise in the cabin within a range of
30 Hz to 180 Hz. Being a real-time system, the ANC continuously detects and
immediately generates opposing sound waves, translating into a consistently
quiet cabin at all times. System is capable of reducing overall noise by up to three
decibels. However, for the frequency range of interest, the system can reduce
unwanted background noise anywhere between five and 15 decibels. As a result,
the overall effect is a more linear sound from the powertrain as the engine
revs increase, creating a more comfortable and quiet cabin experience for the
vehicle's occupants
This blog has left its gathering of spectators completely enchanted.
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