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Is This the 2007 or 2008 Ford Bronco??
FORD BRONCO CONCEPT CAPTURES SPIRIT OF ORIGINAL
WHILE SHOWCASING NEW POWERTRAIN TECHNOLOGIES
2004 NAIAS
The legendary Bronco is back as Ford re-explores the origins of the
sport utility vehicle in a concept making its debut at the 2004 North
American International Auto Show. The Ford Bronco concept demonstrates
the original’s authentic spirit while advancing powertrain
technologies.
At a time when sport utilities are becoming more and more civilized
– some to the point of forgetting their roots – the Bronco’s clean,
raw shape, uncluttered interior and capable chassis make it the ideal
tool for work, play or just making a statement.
Key design features reminiscent of the original Ford Bronco include
the boxy, upright roofline, short wheelbase, round headlamps and the
Bronco nameplate milled into the modern three-bar grille. A winch and
guide rollers are integrated into the lower fascia. Exterior details
include exposed door hinges, cowl vents and flared wheel wells. Unique
loop-shaped door handles are integrated into the door panels and open
with a tug.
"True to its heritage, the Bronco concept is a tough, genuine SUV
that’s all about function," said J Mays, Ford Motor Company group vice
president of Design. "It’s like a claw hammer in a box full of
department store, battery-operated, plastic, power tools."
Yet within Ford Bronco concept’s rugged design is an advanced
turbo-diesel powertrain with concept technologies that stretch the
envelope of today’s conventional propulsion modes.
(editor's note: You can find more photos of the
Bronco
here.)
"The Bronco concept showcases significant advanced powertrain
technologies, mating a 2.0-liter intercooled turbo diesel with an
efficient six-speed PowerShift™ transmission and Intelligent™
four-wheel-drive system for a powerful, sure-footed off-roader,"
said Graham Hoare, director, Powertrain Advanced and Research
Engineering. "Then comes the fun part. We’ve added nitrous-oxide
injection for a burst of power at your fingertips."
Although only a concept, the Bronco demonstrates how Ford could
further complement its extensive SUV lineup that includes Escape,
Explorer, Expedition and Excursion.
"The original Bronco carved new trails as a rugged off-roader, but
Ford really created the SUV phenomenon with the introduction of the
Explorer in 1990," said Steve Lyons, president, Ford Division. "Since
that time, Ford has always been the clear leader in SUVs. But we will
keep looking at new ways to extend our SUV leadership. For example,
we’re introducing the Freestyle crossover for customers who are
looking for a very civilized SUV alternative. At the other extreme,
the Bronco concept shows how a small, rugged and extremely capable
off-road machine could complement our SUV lineup."
Design
The Bronco concept strikes a familiar profile of the authentic SUVs
of the late 1960s and at the same time is contemporary, appealing and
relevant for today’s market. The Bronco concept adds modern
technologies to an original theme for a fresh new approach. The
headlamps use LED and halogen light sources to cast a wider beam for
better peripheral vision in off-road situations.
The Ford name is integrated into the tailgate that swings open to
the side, allowing easy access to the rear cargo area. The taillamps
are rectangular and feature LED lights in a cascaded array. Bronco
sits on LT 265/70R18 Goodyear all-terrain tires mounted on specially
cut 18-inch, six-spoke aluminum wheels that convey the confidence to
carry it over any surface in any condition. A full-size spare tire is
mounted in the rear cargo area.
The roof is made up of two separate sections. The rear portion can
be removed for an open-air driving experience. In another link with
the original Bronco, roll bar accents can be attached once the rear
portion of the roof is removed, giving the look and feel of a Baja
racer. Ford offered customized "Baja Broncos" in the early 1970s.
A monotone color scheme featuring a warm silver finish, coupled
with bright anodized brushed aluminum accents, flows seamlessly from
the exterior body panels to the exposed interior surfaces. The two
seats are trimmed in ginger-hued suede that looks and feels like a
leather work glove, accented with same color leather inserts and a
four-line stitching pattern often found on a rugged tool belt.
The instrument cluster is made up of two round bezels, housing a
speedometer and a combination odometer/compass. A lockable glove box
features an integrated grab handle that is perfectly positioned to
reassure the passenger when traversing rough terrain. Corrugated
interior floor panels further communicate strength and durability.
"The Bronco concept is like your favorite pair of worn, faded jeans
– classic, familiar, comfortable and always in style," said Mays.
The Original
Ford introduced the original Bronco in August 1965 as a response to
the needs of active Americans who sought adventure as well as
practical transportation. Bronco, with a 92-inch wheelbase, was
available in three body styles: A four-passenger wagon with a
removable full-length roof, a pickup with a half roof and open rear
and a two-door roadster with a choice of two- or four-passenger
seating.
Like the other no-frills off-roaders of the day – such as the Land
Rover Defender and International Scout – the Bronco was both adept and
adaptable. Owners loved its ruggedness and the ease with which they
could customize it for their needs. Ford offered an array of
work-and-play options including winches, snowplow blades, locking
front hubs, tow hooks, air-lift springs, an auxiliary gas tank and
more.
The original Bronco was powered by a 105 horsepower inline
six-cylinder engine from the Ford Falcon and was mated with a fully
synchronized three-speed manual transmission with a column-mounted
shifter – its location affectionately dubbed "three on the tree."
The Ford small-block 289-cubic-inch V-8 became available as an
option in 1966, upgraded to 302 cubic inches in 1969. Full-time
four-wheel-drive uniquely mounted for maximum ground clearance and a
solid front axle made it an ideal choice for off-road enthusiasts.
Bronco’s sturdy shape is instantly recognizable. The simple,
upright stance, signature round headlamps and basic, functional
interior are hallmarks of the original design and have made it an icon
among hard-core off-roaders.
Bronco was an immediate success, leading the emerging recreational
four-wheel drive market with sales of 18,200 units in its first full
year of production. Ford continued to update the original Bronco until
1977 – its best sales year, but its last. More than 230,000 were
produced from 1966-1977. A much larger Bronco took over in 1978.
Powerful Diesel Punch – With a Little Extra Kick
The Ford Bronco concept is powered by a proven 2.0-liter
common-rail Duratorq TDCi engine from Ford’s European product range.
This 16-valve turbo diesel combines outstanding power, torque,
smoothness and exceptional fuel economy in a compact package, helping
to change public expectations about diesel engines.
Using the latest common-rail fuel-injection technology, the 128
horsepower (130 PS) engine delivers peak torque of 244 lb-ft (330 Nm)
at a relatively low 1,800 rpm – an ideal quality for off-roading or
urban driving. Plus, Ford has engineered the engine technology to
deliver overboost that provides an extra surge of power on driver
demand for situations such as hill climbing. Overboost generates an
even higher torque of 258 lb-ft (350 Nm) for a limited time under full
throttle.
Sophisticated, electronically controlled injectors are central to
the Bronco concept’s common-rail system. The system delivers fuel at
extremely high pressure – up to 20,300 psi (1,400 bar) – to the
injectors. The fuel is delivered to the cylinders with high precision
and control that results in greater performance and torque and
excellent fuel economy.
For the Bronco concept, Ford engineers took this punchy engine and
went further.
A Nitrous "Kick"
The use of nitrous oxide (N2O) as a performance enhancement dates
back to World War II, when it was employed to give Allied aircraft
"emergency" boosts in both airspeed and altitude capabilities.
In the 1970s, nitrous systems saw growing popularity in the
automotive performance community among racers looking for that added
"kick." The word began to spread when enthusiast publications such as
Hot Rod, Car Craft and Popular Hot Rodding informed their readers by
publishing in-depth, technical feature stories on nitrous-oxide
systems.
The 2001 movie, "The Fast and the Furious," and its sequel
highlighted nitrous oxide use as a performance enhancer among
high-revving, California street racers and spread the word to a new
generation of enthusiasts.
How does nitrous injection work? Each nitrous oxide molecule is
made up of two parts nitrogen and one part oxygen (36 percent oxygen
by weight). During an engine’s combustion process, nitrous oxide
breaks down and releases its oxygen atoms. This extra oxygen creates
additional power by allowing more fuel to be burned. The remaining
nitrogen acts to keep cylinder pressures from getting out of hand.
On the new Ford Bronco concept, a stream of nitrous oxide is
injected into the engine’s cylinders as long as the N2O button is held
down, providing up to a temporary 50-hp boost and a three-second
improvement in quarter-mile times, with 10-15 mph more top speed.
"This has practical benefits for an off-road vehicle when you might
need a sudden burst of extra power to clear an obstacle and keep
moving," Hoare said. "But it also is a blast to drive – literally."
Revolutionary PowerShift™ Transmission
Power is transmitted to the Bronco’s wheels through a revolutionary
new six-speed PowerShift™ transmission that significantly improves
performance and fuel economy.
PowerShift is the result of a Ford-Getrag joint venture, a
transmission that will be seen in Ford Motor Company products later in
the decade. In gasoline applications, PowerShift promises a 12-percent
fuel economy advantage over today’s four-speed automatic transmissions
and provides capability to handle a whopping 332 lb-ft (450 nm) of
torque in a compact package.
"A twin wet-clutch module replaces the traditional torque converter
and operates using hydraulic actuation. This feature is similar to the
clutch found on a typical manual transmission," said Ernie DeVincent,
department manager for transmissions and drivelines in Ford Advanced
Research and Engineering.
"However, manual transmissions or automated manual transmissions
change gears by disengaging the clutch, which interrupts the flow of
torque and can cause rough shifts," DeVincent said. "The PowerShift
approach changes gears by power-shifting from one clutch to the other,
giving smooth shift quality equal to a typical automatic
transmission."
The PowerShift transmission uses a layshaft architecture, which
also has more in common with manual transmissions than typical
automatics, with gears arranged on two parallel shafts. Within the
PowerShift transmission, one clutch connects to the odd gears (1, 3,
5), the other clutch to the even gears (2, 4, 6). The dual-clutch
layshaft has better mechanical efficiency than conventional automatic
transmissions by eliminating the torque converter and the drag losses
of an open clutch. A typical four-speed FWD automatic transmission has
approximately 68 percent mechanical efficiency (on the EPA fuel
economy test), vs. 80 percent for a PowerShift transmission.
Combined with the Duratorq TDCi diesel, the PowerShift promises 5
percent better fuel economy than a conventional six-speed automatic
transmission, and 6 percent better acceleration times.
Outstanding Diesel Powertrain
The PowerShift transmission makes an ideal partner for the Duratorq
TDCi engine. Even efficient, lightweight turbochargers can induce a
noticeable delay in torque rise on tip-in because of inertia – the
so-called "turbo lag." A twin clutch transmission like the PowerShift
offers an advantage because of its lower inertia compared with a
typical torque converter, minimizing the effect of turbo lag. In
addition, the diesel’s low-end torque will allow lower launch rpm,
which results in a shorter duration of clutch slip at launch for
quicker acceleration.
Diesel engines tend to have differently shaped horsepower and
torque curves than gasoline engines, making it desirable to adjust the
step size between transmission gears accordingly. Here again, the
PowerShift transmission, like all layshaft-based transmissions, offers
an advantage. Internal gear sets can be changed easily during
development, allowing the efficiencies of common transmission
architecture, while optimizing gear ratios for both engine types.
While the shifting is automatic, the PowerShift transmission on the
Bronco concept also can be placed in manual mode, with sporty Formula
1-style shifting, using a pair of control paddles on the steering
wheel.
Intelligent™ 4WD System
The new fully automatic Intelligent™ 4WD System on the Bronco
concept will be seen in production first on the 2005 Ford Escape. It
replaces the current Control Trac II™ System and offers better
traction and vehicle stability, improved fuel economy and smoother
operation.
The automatic system requires no driver intervention and is so
seamless in operation that most drivers will never notice that it has
engaged – other than being impressed by the system’s capability in
slippery conditions.
The Intelligent 4WD System uses a fully computer-controlled clutch
that engages the rear wheels only as needed. In normal conditions, the
Bronco concept is driven by its front wheels. Using sensors at each
wheel and at the accelerator pedal, the system’s computer calculates –
dozens of times per second – exactly how much torque to send to the
rear wheels to minimize slip. It can even predict slip and preclude it
from happening at all.
The Intelligent 4WD System eliminates one of the drawbacks of other
four-wheel-drive systems tuned aggressively for maximum traction,
which is a binding effect during tight turns and a feeling of
driveline harshness when the system engages. The Intelligent 4WD
System can sense tight turns and continuously vary torque to the rear
wheels at all speeds, offering the benefits of a "locked"
four-wheel-drive system without any of the drawbacks.
Ford Bronco Concept Specifications
Vehicle Type Full-time 4WD Sport Utility
Dimensions
Length 4,078mm
Width 1,861mm
Height 1,790mm
Wheelbase 2,410mm
Track Front 1,586mm
Rear 1,586mm
Minimum Ground Clearance 268mm
Curb Weight 3,100 lbs.
Tire Size 265/70R18
Powertrain
Engine 2.0-liter Ford Duratorq TDCi 16-valve turbodiesel
Displacement 1,998cc
Bore x stroke 86.0mm x 86.0mm
Fuel type, grade Ultra-low sulfur premium diesel
Max horsepower 128 (178 with nitrous oxide boost) at 4,000 rpm
Max torque 244 lb-ft at 1,800 rpm
Compression ratio 19.5:1
Fuel injection Direct, Delphi high-pressure fuel pump with pilot
injection
Turbocharger Allied Signal GT 20/17v with variable-geometry nozzle
and intercooler
Emission controls Water-cooled EGR and oxidation catalyst
Emission level European Stage III
PowerShift™ Transmission
Type Layshaft based automatic
Number of gears 6
Launch/shift device Twin wet clutches
Torque capacity 332 lb-ft (450NM)
Ratio span 6.186:1
Type of clutch actuation Hydraulic
Type of shift activation Electro-mechanical
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