When it comes to the noise in regular trucks, it’s typically not just
one rattle. It’s lots of tiny little noises that add up to a racket. So
we locked our engineers in the cab with sound sensors (“electronic
sonar technology,” they call it) until they’d identified and quieted
all the squeaks, rattles, hums and noises. The result: a truck that
rides like a quiet luxury car and reduces driver stress and fatigue.
Cascadia’s Cone of Silence
stiffness of the curved walls already reduces vibration noise. Then we
removed the skylight so we could nest the entire Cascadia cab and
sleeper in a thick blanket of noise-dampening insulation. Then we
covered everything inside — even under the flooring and around the
firewall — with more sound-proofing materials. So behind the wheel or
asleep in the bunk, the cab is dramatically more quiet.
Better Sleep Means Safer Roads
you’re behind the wheel driving or behind a desk managing, safety is
your top priority. Studies have shown the louder the cab, the worse the
sleep. Science has linked bad sleep to slower reaction time and
feelings of annoyance and aggravation: a witch’s brew for the road.
Even experienced drivers who are “used to it ” wake several times a
night without being aware of it. So we surrounded the cab with loads of
extra insulation to keep it quiet for improved sleep, and ultimately
The Best Seat on the Road
this seat was any more comfortable, it’d have a wooden arm to pop up
the footrest. We know you’ll love the dimensions: the seat is two
inches wider, two inches longer and goes two inches higher. Optional
features include a seat-heater, swivel and three-way bolster. The
seat’s great not because it fits so many different people, but because
the adjustability means it will fit YOU.
Better for the Bottom Line
the tires up, the ride in the Cascadia was fine-tuned to reduce
road-buzz. The seat, for example, has its own shock absorber that we
tuned to the truck suspension. So rather than feeling like you’re
sloshing around on a waterbed, you feel just the smooth comfort of the
Modeling the Future
Freightliner engineers embraced
computer 3D modeling of the truck early on. Because aerodynamic changes
are so complex, designers and engineers could try wild ideas in the
virtual wind tunnel to see what worked best without waiting to test
prototypes in the wind tunnel.
Born in the Wind Tunnel
then proved the computer model’s aerodynamics by logging over 2500
hours in our wind tunnel. By comparison, other trucking companies just
rent time, paying usually for only 200 hours in the wind tunnel. Ours
is the only wind tunnel owned by a North American truck manufacturer.
Can You Hear It Now?
sound engineers threw down the gauntlet: no racket in the Cascadia.
They gridded off the entire interior, and listened to every square inch
with a super-sensitive microphone. They measured noise while the engine
roared. They isolated and stopped wind noise in the wind tunnel. And
they tracked down and killed the buzzes, rattles, and squeaks. Shhh.
Just enjoy the quiet.
Built Like a Luxury Car
skinned, stamped walls make the truck stronger — Cascadia easily passed
all safety tests — and reduced audible vibration frequency by 50
percent. In fact, no other heavy duty truck on the market has stamped
cab walls put together with such micro-precision. Even in the car
market, only luxury brands like Mercedes-Benz, Jaguar, and Audi are
manufactured this way.
A New Truck with Years of Experience
With new features like available rack and pinion steering and an overhauled HVAC, we couldn’t let Cascadia on the road until it passed some extreme testing. Take a tour of the torture chamber:
Climate Chamber: Components must keep working, wet or dry, from -40 to 130 degrees Fahrenheit.
Torture Track: Two miles of rocks, potholes, curbs and curves.
The Shaker: We record the torture track jolts, then replay it for six straight weeks.
Boot and Glove Engineering
test fleet was fertile ground for ideas. We counted more drivers at
both ends of the size spectrum: big men who needed a bigger seat, and
small women who needed a more adjustable chair. They got it. Then we
noticed drivers banging their feet around near the pedals, so we
increased footwells to comfortably fit working boots. And we built all
controls in the cab to be usable, even with work gloves on.
DD15: Advanced Doesn’t Mean Complicated
When Detroit Diesel designed the DD15,
they focused on integrating simple, smart technology for added power
and fuel efficiency. Turbocompounding adds up to 50 horsepower without
a drop of extra fuel. The integrated Jake Brake is more powerful and
quieter. And the Amplified Common Rail System saves wear and tear on
the fuel injection system while producing fewer emissions with no loss
Intelligent Diagnostics For All
Cascadia electrical system is a state-of-the-art design that takes
advantage of new diagnostic tools, yet blends the best of traditional
systems as well. This dual functioning system of “part multiplexing and
part traditional” technology is common in the automotive world today
because you get increased diagnostics and easier parameter changes. Yet
it is not a completely proprietary system, so technicians from any
Freightliner dealership can access diagnostics you need to keep
driving, such as the engine and transmission Electronic Control Units
(ECUs). When the truck is a long way from home, this can slash downtime
and repair costs.
Flexible Electrical System
the brake lights on whenever the engine brake is activated? In the
past, you’d have to hard-wire something like that. Cascadia’s flexible
electrical system lets a fleet technician set this and many other
options. By opening the electrical system, your fleet can adds lots of
very inexpensive options for running your trucks.
The easiest way to save on fuel?
Own a more aerodynamic truck that
needs less fuel to push itself through the wind. Like the Cascadia. For
months and months, our engineers tweaked and tested full-scale models
in our own wind tunnel to deliver fuel saving aerodynamics.
Choose Power or Fuel Efficiency. Or Choose Both
economy or pulling power? Don't choose. Demand it all. The new Detroit
Diesel DD15™ gets up to 5% better fuel economy and snappy acceleration
with up to 50 free horsepower. Depending on the needs of your fleet,
you can also choose the Cummins ISX or two other do-everything Detroit
Launch Your Truck
Detroit Diesel DD15
Detroit Diesel MBE 4000
Detroit Diesel Series 60
Response” is engineering-speak for get-up from a dead stop. And the
Detroit Diesel DD15™ is 75% faster than a Series 60®. Even fully
loaded, you feel yourself launching up the on-ramps. The DD15 is loaded
with up to 560 HP and up to 50 free horsepower from the
turbocompounding. Plus it hits it maximum torque as low as 1,100 RPM,
so you’re not grabbing for gears climbing the hills.