Mazda will reveal the all-new 2008 Mazda Tribute Hybrid-Electric Vehicle at the 2007 NAIAS. The carmaker is trying to protect the environment and this model is one step forward into achieving that. The car is able to run on 100 % electric power up to around 25 mph, maximizing in-city fuel economy and making it one of the least-polluting vehicles sold. The Hybrid Electric Vehicle offers superior environmental performance with its MZR 2.3-liter gasoline engine. If you need more power, the 2.3-liter DOHC16-valve 4-cylinder engine will be able to deliver 133 horsepower and 124 lb. ft. of torque. The model is equipped with standard front-wheel-drive or optional electronic four-wheel-drive and is offered in two trim levels, Touring and Grand Touring. For the Tribute HEV safety comes first. The all-steel body construction is not only very rigid, but it is also very strong. More details will be offered closer to the launch date.
At the 2007 North American International Auto Show,Mazda North American Operations (MNAO) will unveil the all-new 2008 Mazda Tribute Hybrid-Electric Vehicle (HEV) like a commitment to improve the world's air quality. With a hydrogen-powered version of the RX-8 and a hydrogen-powered hybrid version of the MAZDA5 undergoing extensive testing in Japan, the Tribute HEV is the latest environmentally friendly vehicle to join the Mazda lineup.
Tribute HEV will debut in mid-2007, as a 2008 model-year vehicle. Mazda will provide more details - exact timing, pricing, distribution, sales volumes, etc. - closer to the launch date.
Robert Davis, senior vice president, Quality, Research and Development, MNAO says: "With virtually all new Mazda vehicles sold in the U.S. earning either Low Emission Vehicle (LEV) or Ultra Low Emission Vehicle (ULEV) status, protecting the global environment is a long-standing concern of ours," and "The Tribute HEV is the next step towards strengthening Mazda's environmental efforts."
A "full" hybrid, the Tribute HEV can run on 100 percent electric power up to approximately 25 mph, maximizing in-city fuel economy and making it one of the least-polluting vehicles sold. Still, the Tribute HEV stays true to the Zoom-Zoom Mazda owners have come to expect by delivering the performance required by SUV owners. The Tribute HEV provides plenty of power yet meets California's strict Advanced Technology Partial Zero Emissions Vehicle (AT-PZEV) requirements by achieving Super Ultra Low Emissions Vehicle II (SULEVII) standards, plus zero evaporative emissions standards - the strictest emission regulations a gasoline-fueled vehicle can meet.
The Tribute HEV offers superior environmental performance with its MZR 2.3-liter gasoline engine, which has been modified to run on the Atkinson combustion cycle for superior fuel efficiency. The Atkinson cycle modifies the timing of the closing of the valves, enabling the engine to realize more power with cleaner emissions. At low speeds or in low-load situations, drive is provided by a permanent magnet AC synchronous electric motor, producing 70 kW @ 5,000 rpm and 330 V maximum voltage.
If additional power is required, the Tribute HEV's 2.3-liter DOHC 16-valve Atkinson cycle four-cylinder engine seamlessly engages, contributing 133 horsepower at 6,000 rpm and 124 lb.-ft of torque at 4,250 rpm. As a result, the Tribute HEV pushes out a combined 155-hp, with 0-60 times comparable to a 200-horsepower V-6 engine, while increasing city-driving fuel economy by nearly 75-percent. The Tribute HEV is equipped with a smooth-shifting, electronically controlled Continuously Variable Transmission (CVT) that realizes seamless, highly efficient adjustment of the gear ratio under electronic control.
Once the vehicle reaches speeds above 25 mph, or vehicle load exceeds a certain threshold (such a fully-laden vehicle or a "jack-rabbit" start), the motor supplements the gasoline engine, providing extra torque as needed. During deceleration, it charges the battery by working as a generator. The generator-motor also provides power boosts during heavy load situations, helping Tribute HEV accelerate briskly to speed. In addition to fuel-free operation, electric motors deliver maximum torque at low rpm, so they are an ideal complement to gasoline engines that generate peak power at higher rpm.
The transition through four modes - all-electric, gas-electric, gas-only and charging the battery pack - is seamless, and the only clue to the mode in which the vehicle is operating is the "charge/assist" gauge on the dashboard.
An electronic vehicle system-controller manages charging, drive-assist and engine-starting functions. This device shuts the engine down during coasting and at stoplights to save fuel. It also enables the traction motor to convert to a generator to provide engine-braking and recharge the batteries.
Equipped with standard front-wheel-drive or optional electronic four-wheel-drive, Tribute HEV is offered in two trim levels, Touring and Grand Touring. Mirroring design cues shared by its gasoline-powered sibling, Tribute HEV offers a bold, rugged exterior set off by 16" alloy wheels and new front and rear fascias, hood, liftgate, body-side molding, power side view mirrors, headlamps, taillamps and standard fog lights - features that can all be found on the redesigned conventional 2008 Tribute as well.
The Tribute HEV has a commanding driving position, great visibility, good ground clearance, a tall roof and large cargo area. The elevated seating position and superb visibility mean drivers get a better view of the road when weather conditions are bad, such as heavy driving rain. The vehicle seats five adults in comfort. Storage compartments in both front doors provide easily accessible storage options. In addition, a center console storage compartment with removable bins offers enough space to store a laptop. There is 29.2 cubic feet of carrying space behind the rear seat when it's up, and 66 cubic feet when the seatback is reclined. The rear seat is asymmetrically split 60:40, which improves carrying versatility. For extra practicality, the tailgate features a rear window that lifts separately, ideal for loading less heavy objects.
For the Tribute HEV safety is a priority. The all-steel unibody construction is not only very rigid, it is also enormously strong. The crumple zones and 'Triple H' construction are designed to absorb and redirect energy away from the passenger cabin. 'Triple H' refers to the H-shaped structures in the sides, floor and roof that provide a rigid cell around the cockpit. Side impact door beams are also fitted, further to improve safety in a side impact.
The Tribute HEV comes with advanced front airbags that use various sensors to deploy each front airbag with exactly the right amount of force to deal with the impact. Sensors measure the weight of the seat occupant, the force of the impact and the seat distance from the steering wheel. Side airbags, fitted into the seats rather than the doors - so they work equally effectively, irrespective of seat position - are standard. Front side-impact airbags, side-impact air curtains, independent multilink rear suspension and four-wheel Anti-lock Braking System (ABS) are also standard. Front three-point seat belts have pre-tensioners to reduce slack in the early moments of a frontal impact. In the rear, all three seats have three-point belts and adjustable head restraints for extra safety. Providing additional safety and security, a tire pressure monitoring system is standard.
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