Tuesday, February 3, 2009

2009 Cadillac Converj EV



Cadillac Converj Concept General Motors unveiled a further glimpse at the potential of electric propulsion, this time in the form of luxury transportaCadillac Converj Concept General Motors unveiled a further glimpse at the potential of electric propulsion, this time in the form of luxury transportation. The Cadillac Converj was developed as a well-appointed grand touring coupe with a bold design and a host of interactive technology.

The four-passenger Cadillac Converj concept is intended to show how GM's revolutionary electric propulsion technology - called Voltec - can power a luxury coupe with a typically Cadillac "no compromises" design. The technology enables up to 40 miles of gas- and emissions-free electric driving with extended-range capability of hundreds of miles.

Bob Lutz, GM's vice chairman of Global Product Development, said the Cadillac Converj concept has production substance. "It's a logical extension of our plan to reinvent the automobile," he said. "It clearly shows what a Cadillac electric vehicle could look like, and clearly indicates that global luxury customers can have a car that has both strong design and electric propulsion with a total range of hundreds of anxiety-free miles."

Cadillac's extended-range electric vehicle (E-REV) concept has a new body style that is an evolution of the brand's traditional Art and Science design theme. An aggressive, forward-leaning arc profile is the foundation for the sporting stance. And more than a Cadillac in form, Converj is also intended to be a Cadillac in substance, with the premium materials, technology and driving dynamics that are hallmarks of the brand
The Converj concept is the latest rolling showcase for GM's extended-range electric propulsion system, which the company is now calling Voltec. The Converj features the same 16-kWh, T-shaped battery, electric drive unit, and four-cylinder engine-generator as the Volt. Thus, like the volt, the Converj will go 40 miles on emissions-free electric power. It then switches to the four cylinder engine to provide power to the motor and charge the lithium-ion battery.

Although the Converj is based on the Volt, the design, from GM's U.K. advanced design studio under the direction of Simon Cox, is pure Cadillac. Unlike the Volt sedan, it sports a coupe body style with seats for four passengers in a 2+2 layout. A small trunk is accessed through an even smaller opening. The overall shape resembles the CTS coupe concept that debuted at last year's show with a bit of the Cien show car mixed in. The design emphasizes aerodynamics, with minimal grille openings, a fully covered underbody, and slim cameras in place of rearview mirrors. The smallest Cadillac ever made, the Converj is some 10 inches shorter than the CTS coupe. The Converj is about the same length as the Volt but it's wider, due to the Cadillac's larger wheels and tires (21-inches up front and 22 inches at the rear).tion. The Cadillac Converj was developed as a well-appointed grandtouring coupe with a bold design and a host of interactive technology.The Cadillac Converj’s Voltec electric propulsion system is made up of a 16-kWh, T-shaped battery, an electric drive unit, and a four-cylinder engine-generator. It uses electricity as its primary source to drive the car.A thermally managed battery pack contains more than 220 lithium-ion cells that provide the primary power to drive the Converj electrically up to 40 miles without using fuel or producing tailpipe emissions. The battery is integrated into the Converj’s chassis and stores electricity from the grid when the vehicle is plugged in. It takes less than three hours to recharge the battery at 240V, or about eight hours from a 120V outlet.When the battery’s energy is low, the Converj seamlessly switches to extended-range mode. During this secondary level of operation, electricity needed to power the vehicle is created on-board by a flex-fuel-powered engine that operates much like a home generator to create electricity. The engine-generator ensures a constant supply of power for hundreds of miles until the car is refueled or plugged in to recharge the battery. This extended-range mode eliminates the range anxiety that comes with driving pure electric vehicles that offer no backup power when the battery charge is low.Whether in electric or extended-range mode, the Converj is propelled all the time by an electric drive unit. It converts electrical energy from the battery or the engine-generator into mechanical energy to drive the front wheels. It also delivers 273 lb.-ft. (370 Nm) of instant torque, for a quick launch, and 120 kW of power. The top speed is 100 mph.There is no compromise in vehicle performance in either mode of operation. To enhance the ride feel, the Converj also features GM’s Magnetic Ride Control; and for even greater efficiency, energy during braking is captured and stored in the battery.
The four-passenger Cadillac Converj concept is intended to show how GM's revolutionary electric propulsion technology - called Voltec - can power a luxury coupe with a typically Cadillac "no compromises" design. The technology enables up to 40 miles of gas- and emissions-free electric driving with extended-range capability of hundreds of miles.

Bob Lutz, GM's vice chairman of Global Product Development, said the Cadillac Converj concept has production substance. "It's a logical extension of our plan to reinvent the automobile," he said. "It clearly shows what a Cadillac electric vehicle could look like, and clearly indicates that global luxury customers can have a car that has both strong design and electric propulsion with a total range of hundreds of anxiety-free miles."

Cadillac's extended-range electric vehicle (E-REV) concept has a new body style that is an evolution of the brand's traditional Art and Science design theme. An aggressive, forward-leaning arc profile is the foundation for the sporting stance. And more than a Cadillac in form, Converj is also intended to be a Cadillac in substance, with the premium materials, technology and driving dynamics that are hallmarks of the brand
The Converj concept is the latest rolling showcase for GM's extended-range electric propulsion system, which the company is now calling Voltec. The Converj features the same 16-kWh, T-shaped battery, electric drive unit, and four-cylinder engine-generator as the Volt. Thus, like the volt, the Converj will go 40 miles on emissions-free electric power. It then switches to the four cylinder engine to provide power to the motor and charge the lithium-ion battery.

Although the Converj is based on the Volt, the design, from GM's U.K. advanced design studio under the direction of Simon Cox, is pure Cadillac. Unlike the Volt sedan, it sports a coupe body style with seats for four passengers in a 2+2 layout. A small trunk is accessed through an even smaller opening. The overall shape resembles the CTS coupe concept that debuted at last year's show with a bit of the Cien show car mixed in. The design emphasizes aerodynamics, with minimal grille openings, a fully covered underbody, and slim cameras in place of rearview mirrors. The smallest Cadillac ever made, the Converj is some 10 inches shorter than the CTS coupe. The Converj is about the same length as the Volt but it's wider, due to the Cadillac's larger wheels and tires (21-inches up front and 22 inches at the rear).Pure Cadillac designThere's no mistaking the Converj for anything but a Cadillac, according to Lutz. "An aggressive, forward-leaning profile hints at a new, progressive theme and proportion in Cadillac's design evolution," he says. "The new proportion showcases a uniquely shaped, modern vision of a personal luxury 2+2."The overall shape is reinforced by a prominent, sweeping body line with large, 21-inch (front) and 22-inch (rear) wheels pushed to the edges of the body. The Cadillac Converj exterior is painted a dark silver tri-coat that GM designers dubbed "Reaction."An all-glass roof incorporates solar panels that help offset power drain from the vehicle's accessories. Additionally, several aerodynamic and design efficiencies were incorporated to enhance the driving range, including:A full under-vehicle cover (belly pan)Minimal grille openings that reduce drag at the front of the vehicleLow-profile rearview cameras replace conventional outside mirrors to reduce dragWheels are shaped to push air outward for smoother body side airflowThe Cadillac Converj also incorporates vertical headlamp and taillamp elements, with light pipe technology."Vertical lamps are Cadillac signatures and the Cadillac Converj builds on the brand's light pipe technology with bolder light emitting diode (LED) and high-intensity discharge elements front and rear," said Clay Dean, global design director for Cadillac. "There is also a unique daylight light 'spear' at the top of the headlamps."Luxury meets technology insideThe Cadillac Converj's interior has advanced features and luxurious appointments blending efficiency and environmental consciousness. The 2+2 configuration is trimmed in contrasting Winter White synthetic suede - including the top of the instrument panel - and Midnight Black leather, with polished aluminum and wood grain accents. Renewable materials are used throughout such as wool-blend carpeting, a headliner made from silk, suede made from post-industrial content and more.A technologically advanced driver center increases efficiency and reduces the draw on the battery. Features include:New, organic light-emitting diode technology used on reconfigurable instrument clusterTouch-screen navigation, climate, center-stack controls and audio systemsAdjustable, overhead white ambient lightingUnique "power on" sequence featuring blue-lit console graphicsScreen displays for features including regenerative braking, battery charge level and power outputNo inside rearview or outside mirrors; cameras provide surrounding images on a screen placed high on the instrument panel for a full, panoramic viewPush-button ignition and power-folding front seats

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