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How do we escape from our dependence on high-cost foreign
oil? With petroleum prices surging to record levels and turmoil wracking the Mideast, that’s a question that has
moved from the fringe and into the mainstream of debate.
A growing number of motorists are
taking the issue into their own hands.
Demand for
Toyota’s Prius hybrid-electric sedan has surged
so dramatically that in some parts of the country, dealers are reporting an
eight-month backlog of orders.
That could be good news for Ford Motor Co., which in
August will belatedly launch sales of its the world’s first gasoline-electric
sport-utility vehicle. Ford has dubbed the new Escape Hybrid a “no-compromise
hybrid,” promising that the SUV won’t sacrifice comfort, convenience, or utility
in the bid for higher mileage.
The Escape Hybrid hits market more than half a year late,
time largely spent fine-tuning the hybrid powertrain. But with the way fuel
prices are surging, this case of dumb luck could play out in Ford’s favor if
buyers really do think the new ute lives up to billing.
Hybrid basics
To find out, several members of
TheCarConnection team flew to
Los Angeles to spend some time behind the
wheels of the Escape Hybrid, driving a route that included plenty of
traffic-packed streets, as well as open highway and a modest loop
off-road. But before we report on our findings, it may be best to present
a short primer in hybrid basics.
Even the most efficient automobiles
normally waste a tremendous amount of energy. Hybrids use several methods to
recapture that energy. So-called regenerative brakes generate electric current,
rather than heat. And electric motors attached to the drivetrain can recapture
waste energy when the vehicle is coasting or idling.
There are two basic types of hybrid on the road
today. Honda’s Insight and Civic Hybrids are so-called “mild”
hybrids. Recaptured energy is stored in a small battery pack. When a boost
of power is needed, it’s used to power that motor/generator, which acts like a
sort of electric supercharger. To further save fuel, a mild hybrid will
quietly shut down its internal-combustion —
gasoline —
engine when idling, say,
at a stop light. Tap the accelerator and the engine instantly starts back
up.
Full hybrids, such as the Prius and Escape, also
can operate in fully-electric mode. In heavy traffic, where you might only
move a few feet at a time, a full hybrid will keep its IC engine shut off and
rely solely on battery power.
There’s been a fair bit of confusion,
incidentally, about Ford’s decision to sign a licensing agreement with
Toyota. The
U.S. automaker insists Escape’s
totally home-grown, but that some of its technology was close enough in concept
to possibly trigger a patent infringement suit. Ford claims it was easier to
simply pay a small royalty.
Toyota officials
concur.
Four plus 94
That said, the Escape Hybrid follows classic hybrid form,
combining IC engine and electric motor under its hood. The gasoline-powered
portion is essentially the same 2.3-liter in-line four engine found in the basic
Ford Escape. In this case, it’s been modified to run on what’s known as the
Atkinson cycle. This maximizes fuel economy, though at the cost of low-end
torque.
That’s acceptable in this application because when you
nail the accelerator at a light, or start a passing maneuver, the 70-kilowatt
electric motor kicks in. That translates into 94 horsepower, and when you
add it all together, you’ve got nearly the performance of the V-6 Escape —
albeit for relatively short bursts.
Our initial experience inside the
Escape Hybrid didn’t make much use of this feature. We picked our hybrid ute up
at the Sony Pictures studio in
Culver City, and immediately began a five-mile
mileage run. It was a board-flat stretch of city streets that offered a chance
to maximize the potential of a gasoline-electric vehicle.
The most fuel-efficient conventional Escape with an
in-line four engine, five-speed manual and front-wheel-drive, gets 24 mpg city,
29 mpg highway. The V-6, with an automatic and all-wheel-drive, drops that as
low as 18/22.
During two passes through the loop, editor Marty Padgett
and I generated virtually identical results of about 39 miles to the gallon in
an all-wheel-drive Escape Hybrid. Other journalists bested that number
significantly, and in a front-wheel-drive model, a particularly light-footed
scribe hit the 60-mpg mark.
All these numbers were generated by drivers working hard
to maximize fuel efficiency. Later results fell dramatically in real-world
driving, underscoring the caveat for anyone considering a hybrid. The vast
majority of HEV owners —
whatever the vehicle —
report lower mileage than shown
on the EPA window sticker. In many cases, the gap is significant. But there’s
also no question hybrids do get better mileage than comparable vehicles running
solely on gasoline power.
Look close
Visually, you’ll have to look close to tell the
difference between a conventional Escape and a Hybrid. The most notable exterior
changes include a stylized front fascia with integral fog lamps, and the
addition of a Hybrid badge, with its green leaf a symbol of
enviro-friendliness.
Inside, you’ll find an all-new video display mounted in
the center console. Its primary purpose is to show which mode the vehicle is
operating in at any given moment, and to show how well you’re doing at
maximizing fuel economy. Many Prius drivers have learned to use this as a guide
to changing driving patterns.
(Since there’s a video screen, Ford also offers on
optional navigation system, the first for the Escape.)
We definitely weren’t doing much to boost mileage as we
launched onto the 101 Freeway North, hoping to beat rush-hour traffic. We were
glad to discover the extra passing power the combination powertrain offered,
making it easy to work our way over to the left lane.
The Escape stores recaptured energy in a 200-pound battery
pack tucked beneath the cargo load floor. The package contains 250 D-size
nickel-metal hydride cells, much like those you can buy at an electronics
store. When you’re talking about a 3627-pound SUV (3792 lb with AWD).,
that’s not all that much battery power, and when operating in electric-only
mode, the Escape will yield perhaps two to three miles range at no more than 25
mph.
Launching off the stoplight or aiming
the SUV up a steep hill, you may also run out of juice if you push for too long
without a chance to recharge. But we did not experience that potential problem
as we exited the freeway and drove into the hills of rural TopangaCanyon.
There’s no noticeable difference in handling between the
Escape Hybrid and a conventional, in-line four version, despite the added
battery weight in the rear. For an SUV, it’s reasonably nimble and responsive.
To further improve mileage, the hybrid adopts an electric power-steering system.
It feels a slight bit less connected than a hydraulic system, but not enough to
object to.
Our biggest complaint is the Hybrid’s transmission
clatter under heavy acceleration. It’s a continuously-variable transmission
which constantly adjusts gear ratios for maximum efficiency. CVT technology
alone is expected to yield up to a ten-percent increase in fuel economy for the
new 2005 Ford Five Hundred sedan.
Envelope pushed
Our destination was a hillside ranch
with an extraordinary view of greater
Los Angeles. The challenge
was to weave and bob up a moderately challenging dirt trail. It proved no match
for our AWD Escape, which should be able to handle all but the worst off-roading
an owner can throw its way.
In general, it was hard to complain about the Hybrid’s
performance. The basic Escape has improved significantly since its introduction,
the early version being one of the less refined entries into the compact ute
segment. Today’s Ford SUV is quieter and notably better appointed.
Ford engineers have gone out of the way to make the
hybrid technology as transparent as possible to the typical motorist. They’ve
even built in a little engine creep, the tendency for the vehicle to roll
forward slowly when you lift your foot off the brake. Normal with a gasoline
engine and automatic transmission, it had to be programmed into an electric
motor.
That said, the hybrid version really doesn’t seem to
require any compromises. Except for price, that is. And, unfortunately, that’s
one statistic we cannot provide yet. Ford likely won’t release that critical
detail until about a month before the Escape HEV goes on sale. Based on industry
trends, we would expect a price tag closer to that of the V-6 Escape, and likely
$2000 to $4000 higher.
So is a hybrid right for you?
Even at current gasoline prices, it’d be hard to fully
justify the likely added cost of the hybrid hardware solely through fuel savings
—
unless you intend to put on extremely high mileage or keep the car for quite
some time.
There’s also the “feel-good factor,” the sense of
satisfaction that comes for some from cutting our ties on foreign fuel supplies,
and reducing the production of global-warming carbon dioxide.
And if you live in suburban
Washington,
D.C., you also can smile at folks stuck in
traffic as you legally whiz by in the car pool lanes, even without a passenger.
California is expected to legalize a similar
perk for its diamond lanes.
The long-term success of hybrids like the Escape is
anything but certain. No one knows how the added hardware will last in extended,
tough use. And there are other options appearing, including a new generation of
high-mileage diesels. But if Ford was hoping to hit the ground running with the
Escape Hybrid, it couldn’t have done any better. Today’s headlines will only
help sell the hybrid ute.
2005 Ford Escape
Hybrid
Engine:2.3-liter, 133-hp in-line four engine
modified for Atkinson ignition cycle; mated to 94-hp (70 kW) permanent magnet
electric motor; combined producing peak 155 hp
Drivetrain: Continuously variable transmission (CVT),
front- or all-wheel drive
Length x width x height (inches):
174.9 x 70.1 x 70.4 in
Wheelbase: 103.1 in
Curb weight:
3627 FWD; 3792 AWD
Fuel economy (EPA city/hwy): TBD (est. 35-40 mpg city, 30 mpg
highway for FWD model)
Safety equipment: Driver and passenger front
airbags, anti-lock brakes
Major standard equipment: Tilt steering
wheel, air conditioning, AM/FM/CD audio, power windows, mirrors and door locks,
unique instrument cluster, including battery gauge and message center; video
display for hybrid functions with navigation system optional, unique 5-spoke,
16-inch alloy wheels and reduced rolling friction tires
Warranty:
Three years/36,000 miles; 8 years/100,000
miles battery pack (except in CA emissions states, 10 years/100,000
miles)