SAE Update - December 2021 - 21

Working toward a noise-free world
FOCUS: NVH
The electric vehicle challenge
The market is transitioning toward electric vehicles, and
this poses entirely new noise-damping challenges.
Battery electric vehicles (BEVs) have different brake
duty cycles than internal combustion engine (ICE)
vehicles and will require brake shims with unique
properties for damping, compressibility, and durability.
We believe that Meneta is at the forefront of the
development of these new products.
BEV brake systems operate at lower temperatures
than conventional brake systems, and this influences the
noise mechanisms and solutions. This problem is
referred to as " cold noise " and is one of the biggest
challenges facing the brake industry. Meneta has already
introduced pioneering products to accommodate this
new segment:
* EPB Hybrid Adhesive: A1
* Cold Noise Adhesive: C2
A1 is a new adhesive that offers superior cold noise
damping compared to silicone and has excellent oozing
performance under high pressures like when activating
the Electric Parking Brake (EPB). C2 is an acrylic
adhesive that is comparable to standard OE acrylic
adhesives but offers peak damping performance at 32°F
(0°C), and may even add damping all the way down to
about 0°F (-18°C). Both adhesives have been selected as
the best noise solution on various projects, and can
already be found on cars, driving on the streets.
Meneta is constantly developing new products, and
one of the most promising projects concerns rubber.
Right now, we are looking into a new type of rubber
that offers low compressibility to reduce brake drag while
keeping the rubber isolation properties for noise
performance. We are excited to see how it will be received
by the market once we are ready to introduce it. n
UPDATE
FOCUS: NVH
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Update FOCUS section;
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Future FOCUS Index
JANUARY 2022
Advanced materials
FEBRUARY 2022
Electrification
MARCH 2022
Automated vehicles
APRIL 2022
Engineering tools
MAY 2022
Cybersecurity
JUNE 2022
Testing
December 2021
December 2021
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SAE Update - December 2021

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