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19 Emission control Klarius Products<br />
EVOLUTION<br />
for modern exhaust systems<br />
So, a modern emission<br />
control system can feature<br />
a CAT, DPF and SCR system,<br />
which makes providing<br />
aftermarket equivalents<br />
challenging. Furthermore,<br />
in modern vehicles, the exhaust<br />
is part of a complex<br />
system governed by the<br />
engine control unit (ECU).<br />
<strong>The</strong> sophistication of the<br />
ECU means that the overall<br />
system needs to be kept in<br />
balance, so matching OEM<br />
component performance<br />
and quality is essential for<br />
aftermarket manufacturers<br />
to maintain OEM standards<br />
of emissions and performance.<br />
<strong>The</strong> emission control<br />
system will also have<br />
to incorporate lambda / O²<br />
and temperature sensors to<br />
fully integrate with the system.<br />
Combined CAT and<br />
DPF devices found on diesel<br />
vehicles, which ensure both<br />
devices are as close to the<br />
beneficial heat of the manifold<br />
as possible, present<br />
emissions control system<br />
manufacturers with the biggest<br />
challenge with complex<br />
castings to replicate.<br />
Euro 6 standards have<br />
also placed a greater emphasis<br />
on attaining compliance<br />
as a vehicle ages, which<br />
directly affects the testing of<br />
exhaust systems. Full typeapproval<br />
for all applicable<br />
products provides a quality<br />
benchmark that an exhaust<br />
needs to meet across most<br />
of Europe. Some businesses<br />
such as Klarius also operate<br />
a separate internal testing<br />
regime utilising real-world<br />
vehicles of the correct make,<br />
model and production year<br />
to replicate (and sometimes<br />
improve-on) the original<br />
designs. As standards increase,<br />
more demanding<br />
testing procedures are required<br />
to ensure that an<br />
aftermarket exhaust & components<br />
reaches the OEM<br />
standard.<br />
To produce a truly effective<br />
modern aftermarket<br />
emission control system,<br />
manufactured to OEM quality<br />
standards and above, is<br />
the benchmark for manufacturers<br />
such as Klarius. This<br />
entails close study of OEM<br />
components, combined with<br />
a detailed R&D processes;<br />
trialling aftermarket parts<br />
on vehicles of applicable<br />
make, model and production<br />
year and carrying out<br />
stringent testing to current<br />
legislative standards. Everything<br />
from the size of the<br />
DPF monolith, the quality of<br />
the wash coat & amount of<br />
precious metals inside the<br />
CAT or the consistency of<br />
pipe bend must be exact for<br />
the vehicle to pass current<br />
emissions tests.<br />
Understanding modern<br />
emissions systems, their failure<br />
modes and how to remedy<br />
the cause - not just provide<br />
a replacement, is also<br />
important to manufacturers<br />
such as Klarius. Increasing<br />
complexity means the<br />
need for proper initial training<br />
and refresher courses,<br />
which is why the company<br />
is passing-on its knowledge<br />
to technicians. Klarius has<br />
developed a complete vehicle<br />
emission control system<br />
training course which<br />
has been independently assessed<br />
and accredited by the<br />
IMI to pass on expertise to<br />
garage technicians. Keeping<br />
pace with modern vehicles,<br />
now also means staying<br />
on the upward knowledge<br />
curve.<br />
18, 19 Opinion.indd 2 04/10/2018 11:23
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