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What's New in Automotive Technology?
We recently attended
a class on new vehicle technologies for current model year
cars, and even though it is not strictly a "TIP", I thought
you might be interested in seeing what's coming your way. The
next car you buy may have some of this technology, or even something more
complicated!
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Advanced
Transmissions: While most cars now have a 4-speed
automatic transmission, the new Lexus LS460 wil have an
8-speed automatic! The gear ratios will
be so close together that you will likely not even be able
to feel the transmission shift from one gear to another.
Honda, Nissan, Saturn, and several other manufacturers have CVT
(constantly variable transmissions) that never shift : they
have variable diameter pulleys that change the gear ratio
smoothly.
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Variable
Displacement Engines: If you're anywhere near my
age, you might remember Cadillac's 1981 venture into this
technology with their infamous V8-6-4 engine that turned
off opposite pairs of cylinders to get either a V8, a V6,
or V4 engine in order to get better gas mileage. If
you ever drove one, you're probably afraid of the newer
version, but with the improvements in computer controls,
the new ones are unbelievable. I drove a 2006 Trailblazer
equipped with this system and as the cylinders activated
and deactivated, I couldn't even feel it happening; it was
a perfectly smooth transition. This technologhy will be
available on GM, Chrysler, and Honda vehicles in 2008. One
sidelight : the cylinder deactivation is done with high-tech
hydraulic valve lifters, so frequent oil changes will be
an absolute necessity.
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Clean
Diesel Technology: Many manufacturers have developed
diesel engines that don't smoke, don't rattle, and don't
smell. Many of these are specifically designed for passenger
car applications, so there could be a diesel in your future.
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Active
Noise Canceling: (This one is my favorite!) On
the Hondas with VCM (variable cylinder management), to eliminate
any unusual noises that the passengers might hear when the
cylinders start deactivating, they have installed a microphone
under the hood which picks up the engine noise, and a "sound
processor" using noise canceling technologhy similar to
Bose headphones to generate a sound signal 180 degrees out
of phase, through the car's stereo speakers,
to eliminate the engine noise. I can just see it in a few
years: My client says he thinks his engine is too noisy.
I diagnose it as a blown stereo speaker. Who would have
believed this a few years ago?
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Obstacle
Detection Systems: Available on certain GM models,
Lexus, and possibly other makes, they have actually installed
radar in some cars to let you
know when you're too close to something, or when a car is
passing you in your blind spot. The same radar senses if
a collision is imminent, and if so, tightens your seat belt,
raises and moves the headrest forward to prevent whiplash,
and even boosts brake pressure to amplify any braking by
the driver.
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Advanced
Parking Guidance System: Lexus uses a backup camera,
several processors, and a multitude of sensors to determine
the best angle to turn the wheels to get into a parallel
parking space, and if a certain button is pushed, will interface
with the electric power steering systems to actually steer
itself into the parking space.
As you can see,
very little is getting simpler on the new vehicles, and we will
really have to continue our education and keep our diagnostic
equipment up to date to deal with the coming technology. Luckily
for you, that has always been and will continue to be our goal.
If we
can be of any assistance, please call Shelly, Bryant, or Jerry
at 816 361-0000
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