It was a typical
four-wheeler stunt. The compact pickup was about 100 yards behind me on the nearly
empty divided highway. As the road started to curve to the right,
signs warned that wed soon be back to two lanes. The pickup
had closed-up, and I held my speed at about 57 mph. Visibility
was limited out my left side mirror, because of the right turn,
which tightened as we neared the merge. Coming the other way,
I could see a six-wheel city truck. The pickup couldnt.
The six-wheeler would meet me about 20 feet after the lanes
came together.
Sure enough, the little pickup didnt want to get stuck
behind the big, bad 18-wheeler I was driving. Not on a stretch
of two-lane. He came out of my blind spot, foot to the floor,
accelerating as quickly as his ancient, overloaded pickup could
go
not very. It seemed there was no way hed avoid
a head-on with the six-wheeler. I stood on the brakes and got
the 2000 Peterbilt off on the shoulder. The city truck did the
same on his side, and the pick up squeaked through with inches
to spare.
Now, I know how to drive, but Im the first to admit I
dont have the skills or experience you do. It probably
takes me a year to rack up the miles most of you do in a week.
I do know that after scrubbing off most of my speed, concentrating
on steering out of harms way, and trying to recover my
composure, I would probably have stalled the engine in an ordinary
truck. But I wasnt driving an ordinary truck. My ride
was the ZF Meritor demonstrator for the FreedomLine two-pedal
(accelerator and brake) automated manual transmission. Although
it is not the first automated on the market, this transmission
won the coveted Technical Achievement of the Year Award from
Truck Writers of North America for the 2000 model year. Im
on the committee, but I didnt vote for it. Thats
because I hadnt yet driven it. Now that I have, I completely
agree with the outcome.
Im a proponent of automation. I believe that electronics
can make trucking better and safer. The situation I had with
the pickup is a perfect example. Being relatively inexperienced,
I was almost at a standstill when I remembered about my gears.
With the FreedomLine, I didnt have to shift. I didnt
even have to press in the clutch. This transmission has a clutch,
but its computer controlled and air actuated. I just fed
the truck fuel, and off we went, just as smooth as you please.
No stalled engine. No missed shifts. No problems.
We refers
to ZF Meritor trainer driver Duane Warren of Lincoln Park, MI.
Duane has a great background for his job. He recently drove
Michigan doubles, grossing 164,000 pounds hauling gravel for
Hayball Trucking in Livonia, MI. Before that, he was in charge
of a motor pool at Fort Bragg, NC. During his last two years
in service, he was attached to Special Forces, teaching defensive
and evasive driving as part of anti-terrorist training. His
students included VIPs, senior officers, their families and
their drivers. Duane taught in a variety of vehicles, so he
teaches the FreedomLine well. And make no mistake, theres
more of a learning curve than I imagined. I couldnt just
get into the truck and drive. There are procedures to be followed
and tricks to be learned.
The key has to be off for several seconds before the engine
will start. I found that out when I screwed up on a hill (more
about that later). With the parking brake set or your foot on
the brake pedal, the transmission must be in neutral
before you can start the engine. You should always have a foot
on a pedal, but only on one pedal at a time. When youre
ready to go, release the parking brake, hold your foot on the
brake pedal and push forward on the paddle shifter. Give it
a second or two for the transmission to engage. The dashboard
gear position indicator will show an up/down arrow and 4,
the default starting gear for the 16-speed. When you move the
paddle, the computer signals the air-actuated clutch to disengage.
Step on the throttle pedal, and the clutch will engage as smoothly
as possible, each and every time. If you need to start in a
lower gear, you can either push the function button
(at the drivers thumb) and pull back the paddle, or just
let the computer figure it out. The FreedomLine transmission
will always find the perfect gear for the grade, the load and
the power demand.
To back up, put your foot on the brake. Push the neutral
button (on the shifters right side, opposite the function
button) and press the function button before you
pull the paddle back. One pull puts you in low reverse.
Pull again for high reverse. If you push forward
again, youll shift back into low reverse.
To go forward, press the brake pedal, push the neutral
button, then push the paddle forward.
When driving, you can take command of the transmission at any
time by simply pushing the function button. The
arrows in the gear position indicator will disappear, signaling
that the computer will not change gears. You have to. I learned
that the hard way, too.
We were loaded to 72,500
pounds with crushed rock ballast. The weather report called
for scattered thunderstorms and wind gusts exceeding 45 mph.
I chose the route to provide a variety of conditions. We started
at the Petro in Rochelle, IL, and headed up I-39 to Rockford,
then west on US-20 to Galena. It seems as if all the real hills
in Illinois are concentrated in the northwest corner. When the
road went from four lanes to two, and the pickup disappeared
over the next hill, the fun began. The Pete has a 565 hp Cummins
ISX with 1,850 lbs.-ft. of torque, enough to pull all the hills
at 14th or higher. On several occasions, I purposely slowed
to let the transmission go further down the gears, which it
did as smoothly as can be. Going down a 7-percent grade, I took
control and pulled it back a few gears, as many as the computer
would allow. Try to go too far down and the transmission just
says no. Downshifting, it wont let you over-rev,
and it wont leave you hanging, looking for a gear to get
into.
At the bottom of another hill, I learned the hard way that you
either have to hit the function button to let the
transmission regain control, or push the paddle to shift up.
I forgot to do either, so Duane had to instruct me not to over-rev
his engine. He called it a rookie mistake. Another embarrassing
moment came when traffic was stopped for construction going
up a 4-percent upgrade. We were first in line. When the sign
was turned from stop to slow, I tried
to juggle the brake and throttle pedals, and wound up stalling
the engine. Remember, only one pedal at a time. I forgot to
turn the key off before trying to restart. When you turn the
key off, the transmission automatically defaults to neutral.
When I turned it back on, I forgot to wait for the computer
to reset. I finally got the engine going but by then, the sign
was back to stop. I had kept the whole line behind
me from going through the zone.
Duane told me to lift
my foot off the brake and immediately mash the throttle. Let
the computer figure out what to do. The truck did not lurch.
The frame did not twist. The truck started smoothly up the hill
as if I were an old pro. I love automation.
The Eaton AutoShift does about the same things in the same way, but you still need to press the clutch to start and stop. That difference alone puts the FreedomLine ahead, at least for now. Technology has a way of catching up, and Eaton has already announced a two-pedal transmission for medium-duty trucks. For now, if you want only two pedals in a Class 8 truck, its got to be ZF Meritors FreedomLine. And for a while, Peterbilt and Kenworth have it exclusively.