Group Broadens Powertrain
Mich, Jun 21, 2007 -
Chrysler Group's Powertrain Offensive took a major leap forward today
when Frank Klegon, Executive Vice President - Product Development,
announced a barrage of new initiatives targeted solely at improving the
fuel efficiency of future Chrysler, Jeep and Dodge vehicles.
the fuel-efficient initiatives
are a commitment to developing mild-hybrid technology and expanding the
company's two-mode hybrid program; new six- and eight-cylinder gasoline
engines - including cylinder-deactivation in a V-6; dual-clutch
transmission technology; a common axle program; weight reduction,
aerodynamic and drivetrain initiatives; and another BLUETEC
the company announced
it is exploring the development of a 4-cylinder diesel engine for the
North American market, and the expansion of its 3.0-liter V-6 diesel
Group is focused directly
on improving fuel efficiency across our vehicle lineup," Klegon said.
"We have developed and are implementing a series of major initiatives -
including a bigger push in hybrid and clean-diesel technology - to meet
the needs of American consumers.
of these fuel-efficiency
initiatives will be incorporated simultaneously into a single vehicle
family - our new V-6 with Multi-displacement System (MDS) mated to a
dual-clutch transmission, for example - ultimately resulting in
double-digit-percentage fuel-economy gains."
the next few years, Chrysler
will offer a mild-hybrid powertrain in a Chrysler Group vehicle.
vehicles provide many of
the benefits of hybrid technology, with less of the cost/weight penalty
that is incurred by installing a full hybrid drivetrain. Mild hybrids
allow the vehicle's engine to be turned off at stops. Regenerative
braking stores energy that would normally be lost. Accessories can
continue to run on electrical power while the engine is off. An
electric motor assist results in significant fuel efficiency gains.
Group announced today that
its two-mode hybrid program will expand beyond the Chrysler Aspen
Hybrid and Dodge Durango Hybrid, which debut next year.
Group's two-mode hybrid
system leapfrogs current technology by addressing inefficiencies that
exist in high-speed driving with traditional hybrid technology. The
result will be a 25-percent improvement in fuel efficiency overall -
and nearly 40 percent in the city - in the Chrysler Aspen Hybrid and
Dodge Durango Hybrid.
new Chrysler Aspen and Dodge
Durango Hybrid vehicles can be powered either by the electric motor or
by the 5.7-liter HEMI V-8 engine with MDS - or a combination of the
two. When full power is needed, the system automatically adjusts for
passing, driving steep grades or hauling a trailer. The result is
trend-setting hybrid technology that provides superior fuel economy,
performance and load-carrying capability.
50-state Clean-diesel Vehicle
2009 Jeep Grand Cherokee will
join the 2007 Dodge Ram Heavy Duty as Chrysler Group's 50-state,
clean-diesel BLUETEC vehicles.
brings together a host of
technologies for diesel passenger vehicles, beginning with completely
modern, efficient diesel engines and a focus on "denoxing" to reduce
nitrogen oxides in the exhaust gases. The result is clean-diesel
technology in vehicles that meet 50-state emissions standards for 2010.
Group announced today that
it is exploring additional penetration of its 3.0-liter V-6 common-rail
diesel (CRD) engine - currently in the 2007 Jeep Grand Cherokee - and
the possibility of a four-cylinder diesel engine for the North American
company's current diesel lineup
includes Dodge Sprinter, Jeep Grand Cherokee and Dodge Ram Heavy Duty.
this year, Chrysler Group
announced that an all-new Cummins turbodiesel engine will be available
in light-duty pickup trucks after 2009. Along with generous power and
low-end torque, the new engine will provide up to 30-percent
improvement in fuel efficiency and a 20-percent reduction in CO2
emissions compared to an equivalent gasoline engine.
V-6 Engine Family
With Cylinder Deactivation
February, Chrysler Group announced
that an all-new family of engines - known as "Phoenix" - will join the
Chrysler Group lineup in 2010. Since then, the company has broken
ground on new plants in Trenton, Mich., Kenosha, Wis., and Mexico - all
of which will produce this family of engines.
company announced today that this
new family of V-6 engines will feature cylinder deactivation (MDS).
Specifically, this means the engine will operate efficiently on three
cylinders when less power is needed, and in V-6 mode when more power is
needed. This optimizes fuel economy when V-6 power is not required -
without sacrificing vehicle performance or capability.
new family of V-6 engines will
feature an aluminum die cast block, dual variable valve timing (VVT)
and a two-stage oil pump, among other technologies. The end result is
an expected across-the-board V-6 fuel efficiency improvement of 6 to 8
percent - in addition to new levels of V-6 power, performance and
Upgraded 5.7-liter HEMI V-8
2009, Chrysler Group will deliver
a significantly upgraded version of its renowned 5.7-liter HEMI V-8,
resulting in notable gains in fuel efficiency, refinement, power and
New 4.7-liter V-8
4.7-liter V-8 offers up to 5 percent better fuel economy than
the previous 4.7-liter engine.
the same time, this E85 flex-fuel
engine delivers increased performance and improved refinement. These
improvements come from the 4.7-lter V-8's two spark plugs per cylinder
(the only Chrysler Group engine to do so, other than the 5.7-liter
HEMI), increased compression ratio, improved cylinder-head port flow
and new combustion system.
addition to improved fuel economy,
the result is a 30-percent increase in horsepower and a 10-percent
increase in torque (up to 75 additional horsepower and 35 more lb.-ft.
of torque, depending on application) compared with the previous
4.7-liter V-8 engine.
new dual-clutch transmission -
developed in partnership with Getrag - joins the Chrysler Group lineup
in significant volumes in 2010 model-year vehicles.
new dual-clutch transmission is
expected to deliver a fuel economy improvement of up to six percent,
based on preliminary testing.
new transmission is equipped with
two independent lay-shaft style gear sets with separate clutches, using
manual transmission-based components. During shifts, the next gear is
anticipated and pre-selected. Then one clutch is opened while the other
is closed, allowing shifting without torque interruption. The result is
quicker acceleration and refined shift quality.
Common Axle Program
common axle technology will
result in fuel-economy and axle-efficiency gains, while providing
weight savings, cost reduction, increased refinement and less
complexity. New advanced materials increase overall axle strength and
reduce package size.
featured in the Chrysler 300C
SRT8, this axle will soon move to other Chrysler Group vehicles.
weight reduction and
drivetrain improvements Chrysler Group announced today that a new set
of initiatives are in place to improve fuel efficiency across its
vehicle lineup by at least five percent. These initiatives include
weight reduction, aerodynamic drag improvements, reduced rolling
resistance and brake drag, optimized accessory loads, and minimized