Wednesday, November 18, 2009
Friday, November 13, 2009
2008 Lexus GS 450h
The Lexus GS 450h, first introduced in April 2006 as a 2007 model, remains the only hybrid-powered performance luxury sport sedan in its segment. Based on the new-generation GS platform and featuring Lexus Hybrid Drive technology, the GS 450h offers V8-like performance with greater fuel efficiency.
"While others talk about plans to introduce hybrid-powered luxury models, Lexus has become a leader in this category," said Jim Farley, Lexus group vice president and general manager. "With three hybrid models – each with its own distinct application of Lexus Hybrid Drive – the brand is offering this in-demand technology in some of today's most aspirational luxury vehicles."
The Lexus GS 450h carries a MRSP of $54,900 , and returns nearly 30-percent better fuel efficiency than some V8 models, with EPA-estimated fuel economy of 22 mpg city/25 mpg highway/23 mpg combined. The GS 450h is certified as a Super-Low Emissions Vehicle (SULEV).
Fuel Economics
Cost to Drive 25 Miles
$3.52
Fuel to Drive 25 Miles
1.09 gal
Cost of a Fill-up
$50.16
Miles on a Tank
356 miles
Tank Size
17.2 gal
Annual Fuel Cost*
$2114
For 2008, the unique GS 450h shares the front style refreshing of the GS 350 and GS 460 models, including revised front fascias with a new front bumper and lower intake design and a new chrome grille surround. All GS models gain side view mirror turn signals, and the GS 450h adds a hybrid-exclusive exterior color, Black Opal Mica, and also gains additional blue hybrid highlights.
The 2008 GS instrument panel has been revised, and a new brushed-aluminum shift-plate surround and wood-trim door switch plates accentuate the interior elegance. New interior choices include light gray leather trim and dark gray wood trim. A VDIM cutoff switch has also been added to allow the driver to disengage the stability system when appropriate.
With its advanced technology, high performance and indulgent luxury, the rear-wheel-drive 2008 GS 450h is the premium model in the GS series. In addition to the GS 450h, Lexus also offers the RX 400h luxury utility vehicle and the new-for-2008 LS 600h L flagship hybrid luxury sedan. In addition to boosting performance and fuel efficiency while lowering emissions, Lexus Hybrid Drive technology also further elevates the brand's renowned smooth, quiet operation.
The GS 450h's unique version of the Lexus Hybrid Drive powertrain combines a powerful 3.5-liter V6 engine with a compact, permanent magnet electric motor – all driving the rear wheels. The hybrid powertrain collectively produces 340 horsepower and can effortlessly accelerate the GS 450h from zero-to-60 mph in just 5.2 seconds.
Just as impressive as the GS 450h's acceleration from a stop is how quickly and powerfully torque is delivered during mid-range acceleration. The hybrid system's electric-drive motor delivers maximum torque immediately upon demand. This unique power-delivery characteristic is most noticeable, and most useful, during 30-to-50 mph passing and in traffic-merging maneuvers.
Responsive Handling and Advanced Dynamics
The GS 450h matches its powerful acceleration with responsive handling while maintaining the ultra-comfortable ride that is synonymous with the Lexus brand. Double-wishbone front and multilink rear suspension systems endow the GS 450h with engaging handling performance. Like the V8-powered GS 460 model, the GS 450h is equipped as standard with Adaptive Variable Suspension (AVS), a driver-selectable shock absorber damping system. The standard 18 x 8-inch aluminum alloy wheels have a finish that is unique to the GS 450h and are equipped with 245/40R18 Z-rated summer performance tires; all-season run-flat tires are available.
An optional Active Power Stabilizer system helps to further reduce body sway during cornering. The system uses an Electronic Control Unit (ECU) to calculate the force needed to counter excess body sway, which is then applied to the stabilizer bars by front and rear electric-powered actuators.
The GS 450h also showcases the brand's highest level of dynamic handling technology: the advanced Vehicle Dynamics Integrated Management (VDIM) system that goes beyond the capability of other stability and traction-control systems. VDIM is designed to anticipate the onset of a vehicle slide while cornering and then help to automatically correct the situation with a combination of braking, throttle and steering control in a way that is essentially transparent to the driver.
VDIM integrates Electric Power Steering (EPS), Variable Gear Ratio Steering (VGRS), Antilock Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assist (BA), Vehicle Stability Control (VSC), Electronically Controlled Brakes (ECB), and Traction Control (TRAC).
"Full Hybrid" Powertrain
A "full hybrid," the GS 450h is capable of operating in gas-only or electric-only modes, or a combination of the two. One of a new generation of Lexus engines, the gasoline V6 uses a dual fuel-injection system that combines the benefits of direct injection with those of port injection, and an Electronic Throttle Control System with intelligence (ETCS-i). Dual Variable Valve Timing with intelligence (VVT-i) operates on the intake and exhaust valves to further enhance power and torque across a broad engine speed range.
The GS 450h hybrid powertrain uses two motor-generators, MG1 and MG2 (the drive motor). Each performs specific functions and can operate as both a motor and a generator, although MG1 is used as a starter motor and provides no motive force. The engine-driven generator (MG1) can charge the battery pack or provide additional power to MG2 as needed.
A 288-volt DC Nickel Metal Hydride (Ni-MH) battery pack is installed behind the rear seat area. The battery's power is directed through a "boost converter" that can efficiently raise voltage to a maximum 650V DC. An inverter changes this to AC, providing its elevated power to the 147-kW electric motor, which turns as high as 14,400 rpm. The trunk also contains a 12-volt auxiliary battery that powers various vehicle systems, including audio and navigation.
Unique Hybrid Transmission
Power from the gas engine and electric drive motor (MG2) is distributed to the rear drive wheels via a planetary gear-type Electronically controlled Continuously Variable Transmission (ECVT). This special transmission, which eliminates specific gear ratios, features a two-speed torque-multiplication device that allows drivers to select from among three driving modes: power, normal and snow. "Normal" provides the smoothest operation and is ideal for city or suburban driving; "power" sharpens accelerator pedal response and "snow" mode softens accelerator pedal response making it easier to travel on slippery road surfaces.
The ECVT consists of a motor generator, motive power-dividing mechanism, two-stage motor-reduction device, electrically powered oil pump and hydraulic control system. The two-stage torque-multiplication device varies the gear ratio in two stages by controlling a planetary gear and two wet brakes, similar to the way a conventional automatic transmission operates.
This configuration allows the electric drive motor to operate in high or low ranges, with seamless transitions between the two. MG2 can therefore contribute power not just for acceleration, but at higher cruising speeds as well.
The driver will not feel the GS 450h's transmission doing its work but will be keenly aware of its benefits in the powerful and uncannily smooth acceleration and passing performance. Since the GS 450h is driven solely by its electric motors when starting, traveling slowly, and during low-load driving, the noise level is about half that of a conventional gasoline engine, enhancing the luxury experience.
"While others talk about plans to introduce hybrid-powered luxury models, Lexus has become a leader in this category," said Jim Farley, Lexus group vice president and general manager. "With three hybrid models – each with its own distinct application of Lexus Hybrid Drive – the brand is offering this in-demand technology in some of today's most aspirational luxury vehicles."
The Lexus GS 450h carries a MRSP of $54,900 , and returns nearly 30-percent better fuel efficiency than some V8 models, with EPA-estimated fuel economy of 22 mpg city/25 mpg highway/23 mpg combined. The GS 450h is certified as a Super-Low Emissions Vehicle (SULEV).
Fuel Economics
Cost to Drive 25 Miles
$3.52
Fuel to Drive 25 Miles
1.09 gal
Cost of a Fill-up
$50.16
Miles on a Tank
356 miles
Tank Size
17.2 gal
Annual Fuel Cost*
$2114
For 2008, the unique GS 450h shares the front style refreshing of the GS 350 and GS 460 models, including revised front fascias with a new front bumper and lower intake design and a new chrome grille surround. All GS models gain side view mirror turn signals, and the GS 450h adds a hybrid-exclusive exterior color, Black Opal Mica, and also gains additional blue hybrid highlights.
The 2008 GS instrument panel has been revised, and a new brushed-aluminum shift-plate surround and wood-trim door switch plates accentuate the interior elegance. New interior choices include light gray leather trim and dark gray wood trim. A VDIM cutoff switch has also been added to allow the driver to disengage the stability system when appropriate.
With its advanced technology, high performance and indulgent luxury, the rear-wheel-drive 2008 GS 450h is the premium model in the GS series. In addition to the GS 450h, Lexus also offers the RX 400h luxury utility vehicle and the new-for-2008 LS 600h L flagship hybrid luxury sedan. In addition to boosting performance and fuel efficiency while lowering emissions, Lexus Hybrid Drive technology also further elevates the brand's renowned smooth, quiet operation.
The GS 450h's unique version of the Lexus Hybrid Drive powertrain combines a powerful 3.5-liter V6 engine with a compact, permanent magnet electric motor – all driving the rear wheels. The hybrid powertrain collectively produces 340 horsepower and can effortlessly accelerate the GS 450h from zero-to-60 mph in just 5.2 seconds.
Just as impressive as the GS 450h's acceleration from a stop is how quickly and powerfully torque is delivered during mid-range acceleration. The hybrid system's electric-drive motor delivers maximum torque immediately upon demand. This unique power-delivery characteristic is most noticeable, and most useful, during 30-to-50 mph passing and in traffic-merging maneuvers.
Responsive Handling and Advanced Dynamics
The GS 450h matches its powerful acceleration with responsive handling while maintaining the ultra-comfortable ride that is synonymous with the Lexus brand. Double-wishbone front and multilink rear suspension systems endow the GS 450h with engaging handling performance. Like the V8-powered GS 460 model, the GS 450h is equipped as standard with Adaptive Variable Suspension (AVS), a driver-selectable shock absorber damping system. The standard 18 x 8-inch aluminum alloy wheels have a finish that is unique to the GS 450h and are equipped with 245/40R18 Z-rated summer performance tires; all-season run-flat tires are available.
An optional Active Power Stabilizer system helps to further reduce body sway during cornering. The system uses an Electronic Control Unit (ECU) to calculate the force needed to counter excess body sway, which is then applied to the stabilizer bars by front and rear electric-powered actuators.
The GS 450h also showcases the brand's highest level of dynamic handling technology: the advanced Vehicle Dynamics Integrated Management (VDIM) system that goes beyond the capability of other stability and traction-control systems. VDIM is designed to anticipate the onset of a vehicle slide while cornering and then help to automatically correct the situation with a combination of braking, throttle and steering control in a way that is essentially transparent to the driver.
VDIM integrates Electric Power Steering (EPS), Variable Gear Ratio Steering (VGRS), Antilock Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assist (BA), Vehicle Stability Control (VSC), Electronically Controlled Brakes (ECB), and Traction Control (TRAC).
"Full Hybrid" Powertrain
A "full hybrid," the GS 450h is capable of operating in gas-only or electric-only modes, or a combination of the two. One of a new generation of Lexus engines, the gasoline V6 uses a dual fuel-injection system that combines the benefits of direct injection with those of port injection, and an Electronic Throttle Control System with intelligence (ETCS-i). Dual Variable Valve Timing with intelligence (VVT-i) operates on the intake and exhaust valves to further enhance power and torque across a broad engine speed range.
The GS 450h hybrid powertrain uses two motor-generators, MG1 and MG2 (the drive motor). Each performs specific functions and can operate as both a motor and a generator, although MG1 is used as a starter motor and provides no motive force. The engine-driven generator (MG1) can charge the battery pack or provide additional power to MG2 as needed.
A 288-volt DC Nickel Metal Hydride (Ni-MH) battery pack is installed behind the rear seat area. The battery's power is directed through a "boost converter" that can efficiently raise voltage to a maximum 650V DC. An inverter changes this to AC, providing its elevated power to the 147-kW electric motor, which turns as high as 14,400 rpm. The trunk also contains a 12-volt auxiliary battery that powers various vehicle systems, including audio and navigation.
Unique Hybrid Transmission
Power from the gas engine and electric drive motor (MG2) is distributed to the rear drive wheels via a planetary gear-type Electronically controlled Continuously Variable Transmission (ECVT). This special transmission, which eliminates specific gear ratios, features a two-speed torque-multiplication device that allows drivers to select from among three driving modes: power, normal and snow. "Normal" provides the smoothest operation and is ideal for city or suburban driving; "power" sharpens accelerator pedal response and "snow" mode softens accelerator pedal response making it easier to travel on slippery road surfaces.
The ECVT consists of a motor generator, motive power-dividing mechanism, two-stage motor-reduction device, electrically powered oil pump and hydraulic control system. The two-stage torque-multiplication device varies the gear ratio in two stages by controlling a planetary gear and two wet brakes, similar to the way a conventional automatic transmission operates.
This configuration allows the electric drive motor to operate in high or low ranges, with seamless transitions between the two. MG2 can therefore contribute power not just for acceleration, but at higher cruising speeds as well.
The driver will not feel the GS 450h's transmission doing its work but will be keenly aware of its benefits in the powerful and uncannily smooth acceleration and passing performance. Since the GS 450h is driven solely by its electric motors when starting, traveling slowly, and during low-load driving, the noise level is about half that of a conventional gasoline engine, enhancing the luxury experience.
Thursday, November 5, 2009
Latest Launches in Global Automobile Market
Plenty of new cars are being launched in the Automobiles market in very little time. The Frankfurt Show, for example will display the latest Mercedes Benz S-Class to revive its fading image for superior quality.China, in the mean time will get into manufacturing automobiles big time and already three different models have been made for display at the Motor Show. Local firms in China are manufacturing cars and going by the statistics,it will soon be a trend for China to export their low-cost, high-efficiency cars to United States and other countries.
The first Chinese cars are already gearing up for the European roads. Today, high petrol prices and fuel-guzzling SUVs surround the global automotive industry. North America, Europe and Japan have over-capacity that continues to sap profitability. The automotive industry is set for major expansion once the motorization of China and India begins large scale.
Some of the latest cars launched this year are the 2008 Audi A5 and the Audi TT Coupe. The variations of the Audi have a common element of elegance and comfort. It's sporty, strong and safe. The engine is remarkably designed for fuel efficiency.
Bentley has launched the latest in state of the art technology- the Bentley Brooklands and Bentley Continental GT Speed. The Bentley line of cars is known for being a collector's item. From being classy to being sassy, these cars have excellent horsepower, veneers, the cabin and leather hides. The Bentley models ensure safety and immense comfortability factor.
The BMW 5 Series, BMW X6 and BMW Z4 are some of the major cars that have been launched by the BMW line. Each is a class apart with two binding elements which is elegance and performance. The Buick LaCrosse is one of the other cars with excellent engine, chassis, accessories, interiors and exteriors. The Cadillac CTS and the DTS Platinum Edition are amazing series from the Cadillac brand. The Cadillac series has superlative engine and performance with special features such as LED illumination and special white light on key areas throughput the cabin.
The Chevrolet HHR SS is another masterpiece from the house of Chevrolet. This is a take off from the 1949 Chevrolet Suburban and has a cargo-carrying capacity with 57.7 cubic feat in the passenger version and 62.7 cubic feet in the panel. The Saturn Astra is a remarkable car that is not just amazing on the road but also amazing inside. Astra achieves refined style with high quality materials, appealing textures and soft-touch surfaces throughout. Excellent features like a three-gauge instrument cluster, a rake, a telescoping steering column and available dual panel sunroof that renders Astra its unique ambience.
Other premium line of cars will be launched from the house of Dodge, Ford, Mercedes Benz, Honda, Mitsubishi, Jaguar, Pontiac, Skoda, Lexus, Volkswagen, etc. The automobiles industry has already grown leaps and bounds and the next few years will see a sharp rise in the production of consumer-friendly, environment friendly and fuel-efficient cars. More cars are going to line up for display from some of the best global brands to wait and watch for.
The first Chinese cars are already gearing up for the European roads. Today, high petrol prices and fuel-guzzling SUVs surround the global automotive industry. North America, Europe and Japan have over-capacity that continues to sap profitability. The automotive industry is set for major expansion once the motorization of China and India begins large scale.
Some of the latest cars launched this year are the 2008 Audi A5 and the Audi TT Coupe. The variations of the Audi have a common element of elegance and comfort. It's sporty, strong and safe. The engine is remarkably designed for fuel efficiency.
Bentley has launched the latest in state of the art technology- the Bentley Brooklands and Bentley Continental GT Speed. The Bentley line of cars is known for being a collector's item. From being classy to being sassy, these cars have excellent horsepower, veneers, the cabin and leather hides. The Bentley models ensure safety and immense comfortability factor.
The BMW 5 Series, BMW X6 and BMW Z4 are some of the major cars that have been launched by the BMW line. Each is a class apart with two binding elements which is elegance and performance. The Buick LaCrosse is one of the other cars with excellent engine, chassis, accessories, interiors and exteriors. The Cadillac CTS and the DTS Platinum Edition are amazing series from the Cadillac brand. The Cadillac series has superlative engine and performance with special features such as LED illumination and special white light on key areas throughput the cabin.
The Chevrolet HHR SS is another masterpiece from the house of Chevrolet. This is a take off from the 1949 Chevrolet Suburban and has a cargo-carrying capacity with 57.7 cubic feat in the passenger version and 62.7 cubic feet in the panel. The Saturn Astra is a remarkable car that is not just amazing on the road but also amazing inside. Astra achieves refined style with high quality materials, appealing textures and soft-touch surfaces throughout. Excellent features like a three-gauge instrument cluster, a rake, a telescoping steering column and available dual panel sunroof that renders Astra its unique ambience.
Other premium line of cars will be launched from the house of Dodge, Ford, Mercedes Benz, Honda, Mitsubishi, Jaguar, Pontiac, Skoda, Lexus, Volkswagen, etc. The automobiles industry has already grown leaps and bounds and the next few years will see a sharp rise in the production of consumer-friendly, environment friendly and fuel-efficient cars. More cars are going to line up for display from some of the best global brands to wait and watch for.
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