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Posts Tagged ‘hybrid car’

Mercedes ML 450 Hybrid Car

Thursday, June 11th, 2009

Mercedes-Benz has long been known for its diesels. In fact, it introduced the 260D, the world’s first passenger car powered by a diesel engine, back in 1936. But proud of its reputation for advanced technology in general, it has been hedging its bets with hybrids as well.

Mercedes ML 450 Hybrid Car

Gasoline, Or Diesel, Or Hybrid?

At the New York Auto Show in April 2009, it unveiled its latest hybrid project, the 2010 Mercedes-Benz ML450 Hybrid. It’s the latest expansion in its ML sport utility line, and it makes the ML the first vehicle in the world to offer gasoline, diesel, and hybrid alternatives.

The three drivetrains return a range of mileage figures. The all-wheel-drive ML350 with a standard gasoline engines gets 15 mpg city / 20 mpg highway, with larger V8 versions doing far worse. As for the green alternatives, the clean diesel ML320 BlueTec delivers 18 mpg city / 24 mpg highway, and now the ML450 Hybrid model tops the list, with 21 mpg city / 24 mpg highway.

The new ML model, built in Tuscaloosa, Alabama, is fitted with the Two-Mode Hybrid system jointly developed by General Motors, Daimler, Chrysler, and BMW.

Bigger, Better Battery—And Cooler Too

The Mercedes-Benz version of the Two-Mode system combines a 275-horsepower, 3.5-liter V6 gasoline engine and two electric motors. Together, the complete powertrain delivers 335 horsepower and 381 foot-pounds of torque. But Mercedes-Benz has fitted its own, larger nickel-metal-hydride battery pack, which at 2.4 kilowatt-hours is almost half again as large as the packs used in GM’s various Two-Mode hybrids. And Benz uses liquid cooling to keep its pack healthy and the cells operating at best efficiency, complete with a “super chiller” to blast the pack with coolant when the electrical system is under stress—towing a trailer uphill in desert heat, for example.

None of those components comes cheap, though Mercedes-Benz may have more leeway to charge higher prices than more mass-market big SUVs like the Chevy Tahoe/GMC Yukon twins. But Benz hasn’t released pricing, and most likely won’t do so until the ML450 Hybrid goes on sale this fall.

Like other hybrids, the Two-Mode can move the car at low speeds purely on electric power for short distances. But unlike “single-mode” full hybrids, including the archetypal Toyota Prius, the pair of electrical motors and several gear-sets also provide electrical assist to the gasoline engine at highway speeds—hence the name “Two-Mode.”

Externally, the only difference between the new Hybrid and other MLs is the grille and a slightly domed hood—to clear the power electronics, mounted up front on top of the engine. In an odd transposition, the company’s AMG tuning unit liked the looks of the humped hood so much that it is using that part on its high-performance versions of the ML as well.

During a test drive in Manhattan traffic and up the West Side Highway along the Hudson River, the ML450 Hybrid clearly distinguished itself from the GM Two-Mode sport utilities—even the posh Escalade version. Drivetrain noise is all but imperceptible, and the sound damping (known as NVH by auto engineers, for Noise-Vibration-Harshness) is exemplary.

In fact, most drivers might only figure out that this ML was a hybrid by the engine tone, which like most hybrids doesn’t rise in parallel with road speed. Instead, this hybrid and others sound like cars with continuously variable transmissions—which their hybrid systems simulate by shifting power among the modes and running the engine at its most efficient speeds, taking up the slack with the electric motors.

Simulating An Eight-Speed Automatic

Nonetheless, Benz is concerned that some ML owners might find it unpleasant to experience that disconnect between engine speed and road speed. So, the company developed a “Shift” mode that controls the engine to simulate the behavior of an eight-speed automatic transmission. According to hybrid control systems engineer Konstantin Neiss, using Shift mode imposes about a 3-percent penalty on fuel economy.

The ML450 Hybrid will be one of a pair of hybrids launched for 2010 by Mercedes-Benz. The other is the S400 BlueHybrid, a mild-hybrid version of the large S-Class four-door sedan. Unlike Japanese makers like Toyota and Honda, Mercedes-Benz is using hybrid technology to improve the mileage of its largest, heaviest vehicles—recognizing that upcoming gas-mileage regulations will hit its lineup disproportionately hard.

With the diesel and hybrid ML variants competing head to head, industry analysts will eagerly be watching to see how much wealthy Mercedes-Benz buyers value various levels of mileage, whether hybrids prove more appealing than oil burners and, most importantly, at what price points. It should be a fascinating model year for Mercedes.

Hybrid Car Disadvantage

Friday, June 5th, 2009

Hybrid cars are considered as the car of the future. It is able to effectively conserve fuel and at the same time, it only produces low levels of toxic fumes. Because of these benefits, hybrid cars are now growing in popularity every single day. Many people are now considering getting rid of their conventional cars and purchase a hybrid car to help in cutting fuel consumption cost.

2010-ford-fusion-hybrid

Hybrid cars have two engines for it to effectively conserve fuel consumption. It has the traditional gasoline engine and it also has an electric motor and batteries. The two engines work together in order to cut fuel consumption. With this technology, you will be able to cut fuel usage by more than half. Just imagine, with a hybrid car, you will be able to go more than 60 miles to the gallon. With this kind of savings, hybrid cars are definitely the car of the future.

Hybrid car owners virtually don’t feel the increasing cost in fuel prices. This is the main advantage of the hybrid car. There are other advantages that a hybrid car can give you. Recently, the President of the United States has signed an agreement that hybrid car buyers will be able to enjoy tax incentives. This means that by owning a hybrid car, you will be able to save money on taxes.

There are other benefits that the government imposes on hybrid car owners, such as free parking, and free entry to car pool lanes. Some even offer discounted fees on toll gates.

The braking in hybrid cars is also configured to capture the energy released and uses it to charge the batteries inside the hybrid car. This means that unlike electric cars, hybrid cars don’t actually need to be charged from your home electric outlet.

However, with all the advantages that a hybrid car can give you, there are also disadvantages. The main disadvantage of hybrid cars is that the retail price is quite expensive. Only people who have enough money can purchase hybrid cars. However, the twist in all this is that hybrid cars are actually cheaper when compared to conventional cars in the long run. If you compute the total fuel consumption of both cars, you will actually see that you can save a lot more money on hybrid cars.

The only thing is that hybrid cars are expensive right from the car lot.

Hybrid cars are relatively heavy because of the heavy batteries installed inside the car. This is why hybrid car manufacturers integrates smaller internal combustion engines and are constructed with light materials and should be aerodynamic in order to maximize efficiency. This means that hybrid cars can never really go fast.

Another issue about hybrid cars is that it is very risky in accidents. What makes a hybrid car work effectively is also what makes it risky if it ever gets involved in an accident. This is because hybrid cars stores high amount of voltage in its batteries. This means that there is a high chance of getting electrocuted when you get involved in an accident. This also means that it is relatively difficult for rescuers to get the drivers and passengers out of the hybrid cars because of the dangers of high voltage in the car.

These are the advantages and the disadvantages of hybrid cars. Car manufacturers today are now looking for ways to get rid of the disadvantages of hybrid cars. In the near future, you will see that hybrid cars will be lighter and also contains less risk due to high voltage dangers.

Which Hybrid Car Should You Choose

Sunday, May 31st, 2009

Hybrid cars are getting more and more popular today. In fact, more and more people are now purchasing hybrid cars because of a number of reasons. One is that they will enjoy tax incentives as a buyer of a hybrid car, two is that they will be able to save a lot of money from the rising cost of precious, expensive and limited supply of fuel and three, it will enable them to generate less pollution to the environment because of the extremely low toxic emissions generated by hybrid cars.

Because of the growing popularity of hybrid cars, more and more car manufacturers are now competing to produce the best kind of hybrid cars. They are now producing hybrid cars integrated with state-of-the-art technology that will enable consumers to save more on fuel, and also a car that will be able to produce low toxic emissions.

However, because of the growing market for hybrid cars, and also because of more and more car manufacturers that are now integrating hybrid technology in their cars, many people tend to get confused on which hybrid car to purchase. Besides, all car manufacturers promises to offer the best kind of hybrid cars in the market today.

In order to know which hybrid car to purchase, you have to compare them closely for you to know which hybrid car is for you and which hybrid car you can benefit from more. You have to compare some factors of hybrid cars in order to determine which hybrid car is better than the other.

However, before you go on and compare hybrid cars, you first have to know a little something about how hybrid cars work and how you can benefit from it. First of all, hybrid cars use the cleanest and the most efficient source of energy, which is electricity and also gasoline. Hybrid cars are what you can describe as a cross between a conventional gasoline-powered car and an electric-powered car.

It allows you to save fuel and emit lower volumes of toxic fumes because hybrid cars run on electricity when it is idle. What this means is that when you are stuck in traffic, and the hybrid car is running idle, or not in motion, it will automatically switch of the gasoline engine. Therefore, the hybrid car will run purely on electricity. Once you step on the accelerator pedal, it will automatically switch on the gasoline engine again to run the car.

So, now that you know how hybrid cars work and how you can benefit from it, you now have to know how to compare hybrid cars in order to get the right kind of hybrid car for your everyday use.

First of all, you need to determine how you will use the car. If you have a family, it is recommended that you get an SUV hybrid vehicle. This will enable you to carry more passengers. However, you also have to consider that SUV hybrid vehicles can cost a little more than hybrid cars.

The main advantage of a hybrid car is that it is fuel efficient. You have to choose a hybrid car that is the most fuel efficient in order for you to maximize its benefits. You can ask your dealer about the fuel efficiency of the car. They will be able to tell you how much miles a gallon it can save compared to conventional cars and other hybrid cars.

These are the ways on how you can compare hybrid cars in order for you to choose which one to get. Remember all these things and you can be sure that you will be able to get the right kind of hybrid car available in the market today. To start your search, Honda and Toyota are two of the leading companies today that produce affordable and efficient hybrid cars.