Tìm kiếm nhà trọ - Ở ghép

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Chùm ảnh xe có những tính năng vượt trội

Thảo luận trong 'Tin mới Ô Tô - Xe Máy' bắt đầu bởi bmnhy, 24 Tháng mười hai 2006.

  1. bmnhy Giảng Viên

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    Nội thất xe luôn là quan tâm hàng đầu khi các tỷ phú tiền đô nhắm tới cuộc chơi xe không biên giới

    bên trong cadillac

  2. bmnhy Giảng Viên

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    Cadillac DTS-L

    Cadillac today announced it is introducing a new version of its DTS full-size luxury sedan, the DTS-L, specially designed and built for livery service operators and executive luxury car consumers. Launching in early 2007, the extended DTS-L provides eight
    Cadillac today announced it is introducing a new version of its DTS full-size luxury sedan, the DTS-L, specially designed and built for livery service operators and executive luxury car consumers. Launching in early 2007, the extended DTS-L provides eight additional inches of cabin space and sophisticated, VIP-caliber rear-seat accommodations.

    “The DTS-L is intended to create a compelling new choice for livery and executive sedan operators and consumers,” said Jim Taylor, Cadillac general manager. “This extends the momentum of Cadillac’s product renaissance and growth into an influential segment of the luxury and professional vehicles market.”

    The DTS-L brings Cadillac’s dramatic design and quality to the influential livery sedan world. Converted exclusively by a Cadillac Master Coachbuilder, the brand’s Professional Vehicles conversion specialists, the DTS-L features distinctive “VIP Privacy” rear seating. With the added length inserted behind the rear doors, the DTS-L includes an executive privacy seating position, with the back-seat passengers concealed behind the C-pillar, rearward of the side windows.

    In addition, DTS-L drivers and passengers enjoy numerous luxury amenities and excellent driving dynamics. Powered by the acclaimed 4.6-liter Northstar V-8 engine, the 275-horsepower (205 kW) DTS-L is quiet, smooth and responsive. Heated and cooled driver and passenger front seats with memory settings; heated rear outboard seats; rear four-way power lumbar controls and adjustable headrests; Adaptive Remote Start; OnStar; XM Satellite Radio; DVD navigation and a rear-seat DVD entertainment system are several examples of key DTS-L luxury features.

    DTS-L extends to a total length of 215.6 inches and offers more rear-seat space than comparable extended wheelbase offerings from Lincoln and Lexus.

    “The new DTS-L is the latest in Cadillac’s long and proud tradition of professional vehicles,” Taylor said.

    DTS-L follows in the footsteps of the DTS Presidential Limousine, the world’s first DTS sedan that began its service to the U.S. Secret Service and the president at his inauguration in January 2005. DTS and the Escalade full-size luxury SUV are also converted by Cadillac Master Coachbuilders into stretch limousines.
    End of Cadillac DTS-L review.

  3. bmnhy Giảng Viên

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    BMW 7 Series High Security Car

    The most successful 7 Series in the history of BMW will set a new standard in the luxury performance class once again as it enters the 2006 model year. A significant improvement in performance along with enhancements to the chassis and suspension reaffirm the BMW 7 Series as the driver’s car in the segment. Refinement in design, in turn, expresses the car’s enhanced driving dynamics and sportiness at very first glance while retaining the unmistakable presence that gives the BMW 7 Series its elegant and charismatic character.

    BMW 750i and 750Li: Powered by an all-new VALVETRONIC V8

    The 2006 750i and 750Li will feature a new 4.8 liter VALVETRONIC V8 engine capable of 360 horsepower (SAE net) and 360 lb-ft of torque. The new models are even more responsive than their predecessors, with a 0–60 mph time of just 5.8 seconds.

    BMW 760i and 760Li: Twelve-cylinder engine with a unique combination
    of direct fuel injection and VALVETRONIC.

    New engines reflect BMW’s ongoing commitment to the ultimate driving experience:
    More power, greater efficiency, lower emissions.

    Together with its ongoing model initiative, BMW’s recent engine initiative ensures that BMW will continue to deliver the ultimate driving machine.

    Efficient Dynamics: Overcoming conventional conflicts of interest.

    Increasing engine output and torque while reducing fuel consumption, enhancing agility and nimble performance, and intensifying the experience of driving dynamics enjoyed by the customer: This is what BMW refers to as “Efficient Dynamics”, the guiding principle underlying all of BMW’s development and innovation. This applies equally to engine construction as it does to chassis development.

    In a nutshell, Efficient Dynamics means consistently solving and eliminating conflicts of interest. In conventional terms, more power also means more fuel, more comfort means more weight, which again means more fuel, and so on. Particularly in the case of large luxury-performance sedans like the BMW 7 Series, solving such conflicts of interest is an especially great and demanding challenge.

    BMW is able to escape this continuous loop through the use of intelligent materials and systems – for example, aluminum helps give the chassis and suspension of the 7 Series its light-footed, nimble behavior.

    Chassis and suspension have been refined to improve
    both handling response and ride comfort.

    The BMW 7 Series features an aluminum suspension which offers outstanding steering precision, exceptional agility and well-balanced driving characteristics. As a result, the chassis and suspension of the 7 Series combine superior agility and sporting performance on the one hand, with superior comfort on the other. In other words, it offers the best of both worlds.

    The chassis and suspension of the 2006 BMW 7 Series has been updated and enhanced. The rear track is wider by 14 millimeters or 0.55 inches. Combined with enhanced suspension kinematics and BMW’s revolutionary Active Roll Stabilization, the 7 Series will continue to offer an unparalleled driving experience. For those seeking an even sharper edge, the Sport Package will again be offered with its unique suspension calibrations.

    As a result, BMW offers the widest choice of suspension control systems in the luxury sedan segment, naturally also including enhanced brakes reflecting the higher level of power and performance.

    Refinement in design:
    Even more sporting and dynamic, but with unmistakable presence and elegance.

    The enhanced performance and dynamic qualities of the BMW 7 Series ensured by the new engines are appropriately reflected by suitable refinements in design. Apart from the new, striking powerdome in the hood, the kidney grille, headlights and front air dam have all been discreetly revised. The rear, in turn, is characterized by surfaces and body panels with even clearer contours, a new chrome trim strip, modified tail lights and the redesigned rear air dam. At the side, the more pronounced light contour in the sills emphasizes the enhanced sportiness and dynamic character of the BMW 7 Series.

    In all, BMW’s luxury performance sedan preserves its powerful presence and clearly stands out on the road through its charismatic, elegant and truly unique appearance.

    Inside the car, the unique feeling of luxury and peaceful tranquility has been further refined by the choice of materials and colors, with the control elements following the main lines of the instrument panel. So again, the interior of the 7 Series is now even more luxurious and sophisticated than before.

    The iDrive control concept: Refined in its details, even more user-friendly.

    BMW’s iDrive control concept, the ergonomically sensible combination of single-button control and display monitor introduced in 2001 and much copied since then, has now been further refined.
    Optimized menu guidance in the Control Display, the upgraded presentation of menus, and direct access to the various entertainment functions – for example, one can now directly select audio source and radio frequency band – are essential elements of the updated iDrive system in the BMW 7 Series.

    New features for extra safety, comfort, and individual style.
    As of spring 2005, the BMW 7 Series is available with an even higher standard of series equipment and individual options for customizing the car:

    • All BMW 7 Series now feature BMW’s two-stage Adaptive Brakelights: Whenever the driver applies the brakes harder than usual, motorists following behind are warned by the larger brake light area.
    • The optional CD changer is now MP3 CD-capable.
    • The standard BMW Assist telematics service now includes Bluetooth hands-free phone capability.
    • Last but not least, the updated BMW 7 Series offers the customer a choice of four new paint colors, four new upholstery colors, as well as new 18-inch wheels on the 750i and 750Li.

    The most successful BMW 7 Series ever.

    Accounting for almost 160,000 units delivered to customers worldwide, the fourth-generation 7 Series is the most successful prestige luxury performance sedan in BMW’s history. Since its introduction to the world in 2001, the current 7 Series has already outsold the former model by almost 8 per cent. And with customer deliveries of 57,899 units worldwide in its most successful year so far, 2003, the current BMW 7 Series outperformed its predecessor in that model’s best year (1997) by almost 14

    In Germany, the BMW 7 Series became the sales leader in the luxury sedan market in 2004. Sales have shown impressive growth in Asia, the Middle East, Eastern Europe, Oceania and Africa where, compared with the former model, sales of the current 7 Series have more than doubled after 38 months in the market. Sales volumes in those regions are catching up with the markets where, by tradition, the BMW 7 Series has always had a strong position – in particular, Europe and North America.

    In the United States, the success of the current 7 Series is unparalleled. In its first three years, it outsold its predecessor’s three best years by a significant seven percent.

    Accounting for more than 50 per cent of total sales, the BMW 745i/Li with its large V8 power unit has been the best-selling model worldwide. The long-wheelbase version, in turn, accounts for more than half of all BMW 7 Series sold.

    The BMW 7 Series combines two cars in one: On one hand, it is a genuine BMW offering those typical BMW virtues such as driving pleasure, agility and nimble handling for the customer who enjoys driving. On the other hand, it is a highly prestigious luxury sedan offering generous space and comfort for the driver and passengers.

    More than any other car on the market, the BMW 7 Series offers that Sheer Driving Pleasure so typical of BMW not only in the classic sense, but also in the extended sense of being driven. It is indeed this perfect combination of two worlds that the BMW customer opting for this luxury performance sedan appreciates so much, making this model the most successful 7 Series ever.
    The J.D. Power & Associates 2004 APEAL Study (Most Appealing Premium Luxury Car) and the Strategic Vision Total Delight Index (Best Luxury Car, two years in a row) affirm that 7 Series owners love their cars. The 2006 BMW 7 Series will give them more to love.

    New V8 engines combined with numerous other enhancements will ensure that success of the BMW 7 Series will continue with the 2006 model.
    End of BMW 7 Series High Security Car review.

  4. bmnhy Giảng Viên

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    Còn chiếc này thì hót lắm các bạn ạ:


    BMW 7 Series Night Vision review:
    BMW has revealed two new systems to help keep drivers safe in the dark.

    Night Vision and High-Beam Assistant will make their debuts on 5, 6 and 7 Series models later this year. Night Vision uses infrared imaging to make pedestrians, animals and other heat-emitting objects more visible to the driver up to 300 metres ahead of the car. Clear images of any potential hazards are displayed on the car’s iDrive control screen.

    BMW claims that the Night Vision system extends the driver’s awareness from the standard 150 metres of road illuminated by the bi-xenon headlamps on the 5, 6 and 7 Series. The type of infrared camera used also means the system is not confused by oncoming vehicle lights, street lamps or traffic lights.

    In a linked development, the new High-Beam Assistant will help drivers deal more easily with oncoming vehicles in the dark. Sensors on the front of the car automatically switch the headlights between high- and low-beam settings, creating less driver distraction, and ensuring the full-beam is used whenever possible. The car’s headlights will automatically dip when it detects oncoming vehicles, street lamps, or even cyclists’ lights.

    Road safety research from Germany and the US indicates that drivers not having enough information about the road ahead causes around 50% of serious accidents. Similarly, while the majority of driving is done in daylight hours, a disproportionate 50% of fatal accidents occur in the dark.

    High-Beam Assistant will be available as a £95 option from September, while prices have yet to be confirmed for the Night Vision system – likely to follow towards the end of the year.
    <span style="color:#3366FF">Tổng quan hệ thống quan sát ban đêm (Night Vision) BMW series 7.
    BMW đã tiết lộ 2 hệ thống mới để giữ cho tài xế an toàn trong bóng tối.
    Hệ thống quan sát ban đêm (Night Vision) & Hệ thống hỗ trợ chiếu xa (High Beam Assistant) sẽ xuất hiện lần đầu trên các mẫu xe của series 5,6 & 7 vào cuối năm nay. Hệ thống nhìn ban đêm dùng ảnh hồng ngoại làm cho hình ảnh người đi bộ, động vật, và các đối tượng phát nhiệt khác được hiển thị rõ hơn, trong phạm vi 300m phía trước xe. Những hình ảnh rõ ràng của bất cứ rủi ro tiềm ẩn được phô bày trên màn hình điều khiển iDrive.

    BMW tuyên bố rằng, hệ thống nhìn ban đêm mở rộng tầm quan sát của tài xế từ 150m tiêu chuẩn của đường được chiếu sáng bởi đèn bi-xenon trên các xe series 5,6 & 7. Loại camara hồng ngoại được trang bị cũng có nghĩa là hệ thống sẽ không lúng túng với đèn xe chạy ngược chiều, đèn đường, đèn giao thông.
    Trong sự diễn biến nối tiếp, hệ thống hỗ trợ chiếu xa giúp người lái xử lý dễ dàng hơn với xe chạy ngược chiều trong bóng tối. Cảm biến phía trước xe tự động chuyển giữa chế độ chiếu xa và chiếu gần, giảm sự xao lãng cho nguời lái, bảo đảm chế độ chiếu xa được sử dụng bất cứ khi nào có thể. Đèn trước ôtô sẽ tự động hạ thấp khoảng chiếu khi nó phát hiện phương tiện đến gần, đèn đường, ngay cả đèn xe đạp.

    Nghiên cứu an toàn đường từ Đức và Mỹ chỉ ra rằng, các tài xế ko có đủ thông tin về đường phía trước gây ra 50% những tai nạn nghiêm trọng. Tương tự, khi thời gian của lái xe chủ yếu là ban ngày, nhưng có tỉ lệ không cân đối là 50% số tai nạn diễn ra ban đêm.

    Hệ thống hỗ trợ chiếu xa có sẵn như 1 lựa chọn với giá 95 bảng từ tháng 9, trong khi chưa xác nhận được giá của Hệ thống nhìn ban đêm – có thể phải theo dõi đến cuối năm.</span>
  5. bmnhy Giảng Viên

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    Bạn nào có thời gian tranh thủ dịch sang tiếng việt có dấu để cùng nhau chiêm ngưỡng những tuyệt tác này thì vui thật!

    Vừi giúp forum vừa luyện kỹ năng dịch tài liệu, thật là cool!
  6. bmnhy Giảng Viên

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    Bmw Hydrogen 7 review:
    BMW today announced the introduction of the new BMW Hydrogen 7, the world`s first hydrogen-drive luxury performance automobile. The car a vehicle that has undergone the regular Product Development Process will be built in a limited series in Europe and driven in the US and other countries by selected users in 2007. It is equipped with an internal combustion engine capable of running either on hydrogen or on gasoline and based on the BMW 7 Series.

    Hydrogen technology dramatically reduces emissions generated by personal transport and, in particular, minimizes the emission of CO2. Running in the hydrogen mode, the BMW Hydrogen 7 essentially emits nothing but vapor. And, unlike fossil fuels and traditional gasoline, hydrogen is available in virtually infinite supply. With the BMW Hydrogen 7, the BMW Group is laying down a marker for sustainable mobility. This car will play a pioneering role in driving forward hydrogen technologies. BMW has gained an excellent reputation for significantly reducing fuel consumption and CO2 emissions by using ultra efficient, yet very dynamic gasoline engines. Together with clean performance diesel cars and the technologically advanced hybrid systems currently under development within the BMW EfficientDynamics project, the BMW Group has a clear strategy for sustainable mobility with hydrogen as the ultimate goal.

    With all the comforts and amenities of a non-hydrogen BMW 7 Series, the BMW Hydrogen 7 is powered by a 260 hp twelve-cylinder engine and accelerates from 0,62.1 mph in 9.5 seconds. Top speed is limited electronically to 143 mph. The BMW Hydrogen 7 also features a dual-mode power unit controlled at the touch of a button � that can switch quickly and conveniently from hydrogen to conventional premium gasoline.

    The car`s dual-mode drive provides an overall cruising range of more than 400 miles and enables the driver of a BMW Hydrogen 7 to enjoy virtually unlimited mobility, even when far away from the nearest hydrogen filling station. This technology is a viable solution until the hydrogen infrastructure is fully developed.

    BMW CleanEnergy: paving the way into the future.

    The BMW Hydrogen 7 perfectly captures the essence of the BMW CleanEnergy strategy. By using hydrogen produced from water and renewable energy, such as wind, sun or hydropower, in an internal combustion engine, the car`s emissions in hydrogen mode are essentially nothing but vapor. And, with this emitted water vapor, the cycle can start again and the dream of sustainable mobility without using fossil fuel resources and without impacting the earth`s climate can become a reality. The complete change from a fossil fuel infrastructure to a hydrogen economy will require decades, but with the Hydrogen 7, BMW shows that bringing hydrogen technology to the road is indeed feasible.

    BMW Hydrogen 7: Industrializing hydrogen technologies.

    The BMW Hydrogen 7 has successfully completed the entire Product Development Process (PDP) obligatory for all new BMWs. In this process, all components of the new technology were integrated into the overall vehicle according to the same challenging criteria applied to regular production vehicles. The BMW Hydrogen 7 is not a hand made concept car, but rather, a milestone in industrializing hydrogen technologies for automotive use.

    The knowledge gained in the PDP has not only made a decisive contribution to the everyday driving qualities of the BMW Hydrogen 7, but it will also significantly impact the development and production of future hydrogen vehicle concepts, with the principle of dual-mode drive and the features of other components now going through the strict test of everyday driving practice.

    Dual-mode combustion engine for enhanced flexibility.

    While cruising range is a significant consideration to consumers in any car, BMW recognizes that it is of critical importance in a hydrogen-powered vehicle, because there is not yet a full network of hydrogen filling stations in the United States.

    For precisely this reason, the BMW Hydrogen 7 features dual-mode drive technology and a combustion engine capable of running on both hydrogen and gasoline. The cruising range in the hydrogen mode is more than 125 miles, with another 300 miles in the gasoline mode. Thus, the driver of a BMW Hydrogen 7 is able to use the vehicle without problem even when the nearest hydrogen filling station is far away.

    The BMW Hydrogen 7 clearly proves that liquid hydrogen may by all means be used as a source of energy for the production car. By introducing the BMW Hydrogen 7, the BMW Group establishes powerful momentum for the ongoing development of a supply infrastructure serving above all to set up additional hydrogen filling stations providing sustained mobility on a broad basis also in the future.

    Two tanks: Smooth transitions and maximum cruise range.

    To offer the longest conceivable cruising range, the BMW Hydrogen 7 comes with both a conventional 74-litre (16.3 Imp gal) gasoline tank and an additional fuel tank taking up approximately 8 kilos or 17.6 lb of liquid hydrogen. Stored in a high tech tank, liquid hydrogen offers significant advantages in energy density enhancing the cruising range of the hydrogen car.

    The driver is able to switch from hydrogen to gasoline mode manually by pressing a button on the multifunction steering wheel. Because engine power and torque remain exactly the same regardless of the mode of operation, switching from one mode to another has no effect on the driving behavior and performance of the BMW Hydrogen 7.

    The control system in BMW Hydrogen 7 gives priority to the use of hydrogen. And, should one of the two types of fuel be fully consumed, the system will automatically switch over to the other type of fuel in the interest of secure, ongoing supply.

    Luxury class comfort for four.

    The BMW Hydrogen 7 is a four-seater with the two passengers at the rear enjoying the same high standard of comfort as in one of BMW`s regular luxury performance vehicles.

    The BMW Hydrogen 7 comes with an unusually wide range of standard features. In addition to the high level of equipment featured from the start in the BMW 760i, the BMW Hydrogen 7 comes inter alia with climate comfort composite glazing, BMW`s high-end automatic air conditioning, auxiliary heating, electric seat heating for the driver, front passenger and rear seats, lumbar supports, electric seat adjustment with memory function on the front seats, ISOFIX child seat fastenings, Park Distance Control, a rain sensor, exterior and interior mirrors with automatic anti-dazzle, Soft Close Automatic for the doors and a headlight assistant. A complete entertainment and communication package adds to the comfort a BMW 7 Series can provide.


    Progress without compromises.

    BMW Hydrogen 7 emphatically proves that changing over to an alternative form of energy doesn�t mean missing out on superior driving dynamics and comfort. The departure from fossil fuel does not in any way mean giving up the dynamics and performance typical of a BMW. Mobility of tomorrow and driving pleasure of today are compatible, with the drive concept of BMW Hydrogen 7 being directly transferable to future models. Driving a car of this caliber will be just as thrilling in the future as it is today, but at the same time cleaner than ever before.

    BMW Group: Sustainability. It can be done.

    Sustainable action and corporate success belong together. With this clear commitment, the BMW Group has integrated sustainability as part of its corporate strategy for many years and takes responsibility for its products throughout their entire life cycle from production to end-of-life recycling. The BMW CleanEnergy strategy aims to create a sustainable future for individual mobility independent of fossil fuels. With BMW EfficientDynamics, the company enhances fuel economy with every new product while still offering the customer the best in class performance.

    With recycling-optimized product design and life cycle assessment, BMW is helping to reduce the impact on the environment. The use of benchmark technologies in its clean production program significantly reduces the consumption of water and energy during the production process. There are many examples of the advantages of adhering to BMW`s mantra, Sustainability. It can be done. The benefits are enjoyed by not only the company and its associates, but also the environment and, most importantly, the customer. To learn more about BMW Group and sustainability, please visit www.bmwgroup.com/sustainability.
    End of Bmw Hydrogen 7 review.
  7. bmnhy Giảng Viên

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    Cars are immensely complicated machines, but when you get down to it, they do an incredibly simple job. Most of the complex stuff in a car is dedicated to turning wheels, which grip the road to pull the car body and passengers along. The steering system tilts the wheels side to side to turn the car, and brake and acceleration systems control the speed of the wheels.

    Photo courtesy General Motors
    GM's sedan model Hy-wire


    Given that the overall function of a car is so basic (it just needs to provide rotary motion to wheels), it seems a little strange that almost all cars have the same collection of complex devices crammed under the hood and the same general mass of mechanical and hydraulic linkages running throughout. Why do cars necessarily need a steering column, brake and acceleration pedals, a combustion engine, a catalytic convertor and the rest of it?

    According to many leading automotive engineers, they don't; and more to the point, in the near future, they won't. Most likely, a lot of us will be driving radically different cars within 20 years. And the difference won't just be under the hood -- owning and driving cars will change significantly, too.

    In this article, we'll look at one interesting vision of the future, General Motor's remarkable concept car, the Hy-wire. GM may never actually sell the Hy-wire to the public, but it is certainly a good illustration of various ways cars might evolve in the near future.

    Hy-wire Basics

    Two basic elements largely dictate car design today: the internal combustion engine and mechanical and hydraulic linkages.
    If you've ever looked under the hood of a car, you know an internal combustion engine requires a lot of additional equipment to function correctly. No matter what else they do with a car, designers always have to make room for this equipment.

    Photo courtesy General Motors
    The original AUTOnomy concept car

    Photo courtesy General Motors
    The drivable update of the AUTOnomy, the Hy-wire

    The same goes for mechanical and hydraulic linkages. The basic idea of this system is that the driver maneuvers the various actuators in the car (the wheels, brakes, etc.) more or less directly, by manipulating driving controls connected to those actuators by shafts, gears and hydraulics. In a rack-and-pinion steering system, for example, turning the steering wheel rotates a shaft connected to a pinion gear, which moves a rack gear connected to the car's front wheels. In addition to restricting how the car is built, the linkage concept also dictates how we drive: The steering wheel, pedal and gear-shift system were all designed around the linkage idea.

    The defining characteristic of the Hy-wire (and its conceptual predecessor, the AUTOnomy) is that it doesn't have either of these two things. Instead of an engine, it has a fuel cell stack, which powers an electric motor connected to the wheels. Instead of mechanical and hydraulic linkages, it has a drive by wire system -- a computer actually operates the components that move the wheels, activate the brakes and so on, based on input from an electronic controller. This is the same control system employed in modern fighter jets as well as many commercial planes.


    Photo courtesy General Motors
    The Hy-wire has wheels, seats and windows like a conventional car, but the similarity pretty much ends there. There is no engine under the hood and no steering wheel or pedals inside.

    The result of these two substitutions is a very different type of car -- and a very different driving experience. There is no steering wheel, there are no pedals and there is no engine compartment. In fact, every piece of equipment that actually moves the car along the road is housed in an 11-inch-thick (28 cm) aluminum chassis -- also known as the skateboard -- at the base of the car. Everything above the chassis is dedicated solely to driver control and passenger comfort.

    This means the driver and passengers don't have to sit behind a mass of machinery. Instead, the Hy-wire has a huge front windshield, which gives everybody a clear view of the road. The floor of the fiberglass-and-steel passenger compartment can be totally flat, and it's easy to give every seat lots of leg room. Concentrating the bulk of the vehicle in the bottom section of the car also improves safety because it makes the car much less likely to tip over.

    But the coolest thing about this design is that it lets you remove the entire passenger compartment and replace it with a different one. If you want to switch from a van to a sports car, you don't need an entirely new car; you just need a new body (which is a lot cheaper).

    The hydrogen tanks and fuel-cell stack in the Hy-wire

    You can always switch back when you need the van again. The logistics of switching is still unclear -- if the idea catches on, there might be special switching stations where you can keep your different car bodies, or there might be a way for drivers to switch the car bodies themselves in their own garage.

    The Name Game
    GM originally dubbed its working concept for a drive-by-wire fuel-cell car the AUTOnomy, to highlight the flexibility of the computer control and switchable car bodies. When it came time to name the actual drivable version, the design team recruited a group of kids, ranging from six to 15 years old, to come up with interesting possibilities. Candy-fueled brainstorming sessions yielded hundreds of names, including Wildcard, Moonshot, Jetson and Volt. GM ultimately went with 14-year-old Aleksei Dachyshyn's suggestion, Hy-wire, because it nicely summarized the hydrogen-fuel-cell and drive-by-wire concepts at the vehicle's core.

    Hy-wire Numbers

    Top speed: 100 miles per hour (161 kph)
    Weight: 4,185 pounds (1,898 kg)
    Chassis length: 14 feet, 3 inches (4.3 meters)
    Chassis width: 5 feet, 5.7 inches (1.67 meters)
    Chassis thickness: 11 inches (28 cm)
    Wheels: eight-spoke, light alloy wheels.
    Tires: 20-inch (51-cm) in front and 22-inch (56-cm) in back
    Fuel-cell power: 94 kilowatts continuous, 129 kilowatts peak
    Fuel-cell-stack voltage: 125 to 200 volts
    Motor: 250- to 380-volt three-phase asynchronous electric motor
    Crash protection: front and rear "crush zones" (or "crash boxes") to absorb impact energy
    Related GM patents in progress: 30
    GM team members involved in design: 500+

    The Hy-wire's "brain" is a central computer housed in the middle of the chassis. It sends electronic signals to the motor control unit to vary the speed, the steering mechanism to maneuver the car, and the braking system to slow the car down.
    At the chassis level, the computer controls all aspects of driving and power use. But it takes its orders from a higher power -- namely, the driver in the car body. The computer connects to the body's electronics through a single universal docking port. This central port works the same basic way as a USB port on a personal computer: It transmits a constant stream of electronic command signals from the car controller to the central computer, as well as feedback signals from the computer to the controller. Additionally, it provides the electric power needed to operate all of the body's onboard electronics. Ten physical linkages lock the body to the chassis structure.

    Courtesy General Motors
    GM's diagram of the AUTOnomy design

    The driver's control unit, dubbed the X-drive, is a lot closer to a video game controller than a conventional steering wheel and pedal arrangement. The controller has two ergonomic grips, positioned to the left and right of a small LCD monitor. To steer the car, you glide the grips up and down lightly -- you don't have to keep rotating a wheel to turn, you just have to hold the grip in the turning position. To accelerate, you turn either grip, in the same way you would turn the throttle on a motorcycle; and to brake, you squeeze either grip.

    Electronic motion sensors, similar to the ones in high-end computer joysticks, translate this motion into a digital signal the central computer can recognize. Buttons on the controller let you switch easily from neutral to drive to reverse, and a starter button turns the car on. Since absolutely everything is hand-controlled, you can do whatever you want with your feet (imagine sticking them in a massager during the drive to and from work every day).

    Photo courtesy General Motors
    The Hy-wire's X-drive


    Photo courtesy General Motors
    The X-drive can slide to either side of the vehicle.

    The 5.8-inch (14.7-cm) color monitor in the center of the controller displays all the stuff you'd normally find on the dashboard (speed, mileage, fuel level). It also gives you rear-view images from video cameras on the sides and back of the car, in place of conventional mirrors. A second monitor, on a console beside the driver, shows you stereo, climate control and navigation information.

    Since it doesn't directly drive any part of the car, the X-drive could really go anywhere in the passenger compartment. In the current Hy-wire sedan model, the X-drive swings around to either of the front two seats, so you can switch drivers without even getting up. It's also easy to adjust the X-drive up or down to improve driver comfort, or to move it out of the way completely when you're not driving.

    One of the coolest things about the drive-by-wire system is that you can fine-tune vehicle handling without changing anything in the car's mechanical components -- all it takes to adjust the steering, accelerator or brake sensitivity is some new computer software. In future drive-by-wire vehicles, you will most likely be able to configure the controls exactly to your liking by pressing a few buttons, just like you might adjust the seat position in a car today. It would also be possible in this sort of system to store distinct control preferences for each driver in the family.

    Photo courtesy General Motors


    Photo courtesy General Motors
    GM concept of the AUTOnomy with and without a body attached

    The big concern with drive-by-wire vehicles is safety. Since there is no physical connection between the driver and the car's mechanical elements, an electrical failure would mean total loss of control. In order to make this sort of system viable in the real world, drive-by-wire cars will need back-up power supplies and redundant electronic linkages. With adequate safety measures like this, there's no reason why drive-by-wire cars would be any more dangerous than conventional cars. In fact, a lot of designers think they'll be much safer, because the central computer will be able to monitor driver input. Another problem is adding adequate crash protection to the car.

    The other major hurdle for this type of car is figuring out energy-efficient methods for producing, transporting and storing hydrogen for the onboard fuel-cell stacks. With the current state of technology, actually producing the hydrogen fuel can generate about as much pollution as using gasoline engines, and storage and distribution systems still have a long way to go (see How the Hydrogen Economy Works for more information).

    So will we ever get the chance to buy a Hy-wire? General Motors says it fully intends to release a production version of the car in 2010, assuming it can resolve the major fuel and safety issues. But even if the Hy-wire team doesn't meet this goal, GM and other automakers are definitely planning to move beyond the conventional car sometime soon, toward a computerized, environmentally friendly alternative. In all likelihood, life on the highway will see some major changes within the next few decades.

    For more information about the Hy-wire and other emerging automotive technologies, check out the links on the next page.
  8. qtam Guest

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    Nhìn hổng xe nào giống xe đang chạy ở sài gòn vậy?

    nhìn chiếc nào cung muon chạy thử, chắc fe lắm.
  9. bmnhy Giảng Viên

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    Đợi đi mà, khoảng 10 năm nữa thôi, Có mà Việt nam lại sản xuất ra máy xe này ấy chứ!!!!!

    Nói thế thôi, các xe này vốn dành cho đại gia. Nước ngoài cũng thưộc hàng cao cấp, ngay như Hàn quốc (vì biết hàn thôi) Người ta cũng chỉ xài xe Kia, Huyndai, giá trung bình khoảng 10-20 ngàn thôi mà.

    nhưng mà ngắm mấy chiếc này cũng thấy tâm hồn xao động!!
  10. bmnhy Giảng Viên

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    Hiện nay các dòng xe này đã chuyển sang dùng công nghệ by-wire hết rồi!

    Cuộc cách mạng công nghệ sẽ dần biến ô tô thành một con robot đáng yêu nhất hành tinh!

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