Sorting Myth From Fact as Volt Makes Its Debut - lithium battery pack

Norman mayesono
In the month, last week's 2010, GM began introducing the 2011 Chevrolet Volt to the publishing house, which is scheduled to be at the dealership next month.
The project included detailed engineering and marketing presentations, with reporters traveling about 200 miles on the Michigan Highway.
What is foreseeable is that
Looking forward to the car
And some noise about the details of its operations-
Began to jump on the Internet.
In praise of Volt's innovation and bashing for $41,000, writers and readers are confused about what the car is or is not.
When Volt debuted at the 2007 Detroit motor show as a design research and technology showcase, it was welcomed for its unconventional green driving style.
Later, with the economy in recession,M.
After the collapse of the Volt, it became a symbol of hope for automakers to reinvent, a blueprint for a new approach to car design. G. M.
Designed a car that relies purely on the power of large lithium for 50 miles.
Ion batteries do not produce tail pipe contaminants.
Unlike other electric vehicles, however, the Volt concept car has a small gasoline engine that starts when the battery runs out, powering the on-board generator to generate the power needed to keep the car going.
Seems to be in a strike, G. M.
The argument that electric vehicles are impractical for their modest mileage has been eliminated.
Although advertising has eased in the shape of the display car for production, the driving system is basically in line with the original idea.
Almost four years later, the powertrain is still a simple label.
On the ad for a short commute, Volt did not burn any gas.
In the case of a full battery and tank, the car can travel 350 miles. M.
So it can be the main car for the family, not just the local car.
In a few weeks, a comprehensive assessment will be conducted in this area.
At the same time, here are the answers to the basic questions about cars: Q.
Is Volt an electric vehicle or a hybrid? A. G. M.
Always call Volt an electric car.
"Pure Electric" is the wording in the material distributed to the press --
Its term is based on the fact that the front wheel has an electric drive whenever the car is driving.
The company insists it is not a hybrid.
But isn't the gasoline engine under the hood making the Volt a hybrid according to the widely accepted definition in the industry?
This seems to be a reasonable conclusion. M.
The main job of the engine is to turn the generator.
Volt will not drive its motor because there is no electricity, GM.
It should be considered an electric car.
Of course, Volt takes a different approach to the car drive system, and perhaps it's better to be described as a new change in a series of hybrid layouts.
Operation similar to diesel-
This series of hybrid internal combustion engines is only used to generate electricity for electric drive motors. Q.
So, what's the fuss? A.
Compared to G. , the information obtained before the news introductionM.
Has been maintained before, clearly stated under certain conditions (on the highway where the battery is exhausted), 4-
The cylinder gas engine does provide some assistance to the drive wheel.
A hybrid system in which the gas engine works in this way with the Power Drive-
For example, Toyota Prius
Called parallel hybrid. G. M.
The company said that due to competition, the car concealed the operation details of Volt during the development process and protected its intellectual property rights before the patent was approved.
Also, until this week G. M.
Hold on to gas-
The drive generator can never charge the battery and can only keep charging while the car is driving.
The company now says the generator can send some power to the battery to supplement what it calls a buffer. G. M.
It is noted that it is better to charge by inserting, as the grid is a cheaper source of electricity.
It's no surprise that when bloggers notice these differences, the allegations of deception fly, even from publications that think cars are fully capable and smart-conceived. Q.
What's the difference between Volt and Prius?
More like a Prius plug?
A hybrid that Toyota is developing? A.
Volt's design relies mainly on battery power;
A traditional hybrid like Prius, the battery is much smaller, driven mainly by a gasoline engine, relying on its motor, mainly to help gas engines at a lower speed and with a small amount of power supplyonly driving.
Toyota says it will provide a plug
In the Prius version of 2012, lithium-
An ion battery large enough to drive about 13 miles with electricity. Q.
How to compare the voltage with the Nissan Leaf, then? A.
The Leaf is a pure electric vehicle that operates only on the energy stored in the battery.
Nissan says it has a range of 100 miles. after that, it will take eight hours to use high power. Voltage charger. Q.
These types of cars
Prius, leaf or voltage
Is it right for me? A.
Leaf is a great solution if you have another car that can extend your travel time, do not commute long distances and want a car with no tail tube emissions.
Want the drivers around them.
The town's errands and daily commutes are oil
Volt is available for free without losing the ability to travel long distances.
Prius makes the most sense for drivers covering many miles, although short driving is a bit more expensive than leaves or volts. Q.
Why is Volt designed like this? A.
Engineers set out to build a car that offers the advantage of e-commerce. V. —
Including zero emissions and cheap domestic "Refueling "--
For local driving and short trips most people do every day.
In order to achieve maximum efficiency, the basic layout of electric vehicles was chosen as the starting point.
But there is a concession in practicality.
In order to eliminate the owner's concern about the battery exhaustion and detentionG. M.
An on-board power generation system has been added as a way to expand the range of cars.
This compromise adds cost, weight and complexity, but at least until the public charging infrastructure is in place, it is thought that the car will attract more buyers. AdvertisementQ.
What was the early review? A.
Reporters driving cars in Michigan were very responsive and highly praised the performance of the car and the degree of integration of electric and gas-driven systems.
Lindsay Brook wrote the first report for The Times on Volt's performance in the operation of the gasoline engine, which he provided in his email
After a long day driving a car on a media show, the email wrote: "Volt works very well.
We smashed the car yesterday, including a bunch. open-
The throttle runs to 100. p. h.
The car averaged 52 miles a gallon a day, and we got 44 miles. 5 miles in E. V. mode. For what G. M.
They started to implement it with this program. ”Q.
What is the fuel economy of Volt compared to traditional hybrids? A.
There is no simple answer, but this is for sure: it won't get 230. p. g. that G. M.
It said it was expected to drive in the city.
The EPA's fuel economy certification is not over yet.
Also, as regulators try to develop meaningful ratings for hybrid fuels, the new fuel economy label is still workingdrive vehicles.
The figures are expected to be released soon. M.
Said that because there is no fuel economy label, the car cannot be shipped from the factory.
We know very well: G. M.
Said the car would travel 25 to 50 miles on a fully charged battery. about $1.
According to the voltage test of the car and the driver, the electricity worth 60
Perhaps 310 miles away, the gas engine pulls fuel from engine 9. 3-gallon tank.
A simple calculation shows that the car has traveled 33 metres. p.
G in "extended range" mode.
But to be fair, the fuel economy should be at least averaged across the entire range, increasing the energy equivalent to electricity when the battery is powered.
The government has not completed the calculation of this part of the mileage;
By contrast, the 2011 Toyota Prius is rated 51 metres. p. g.
There are 48 highways in town. Q.
Why do you need quality gasoline?
Can it use E85 like flex? fuel vehicle? A.
Extract the necessary strength from a small heightefficiency 4-
Engineers designed engines with high compression ratios.
High quality fuel is required to prevent engine damage under such high internal pressure.
The Volt engine will not be compatible with the E85 ethanol mixture until 2013, although it is said to be the original concept car. Q.
Is Volt made in the United States? A.
Chevrolet will assemble Volt in Detroit-
The factory is located in Michigan.
Like all modern cars, there are many sources of its parts.
The battery will come from South Korea as production begins.
Electric motors (two) are made in Mexico.
The gas engine is from Austria. Q.
How much is it? A.
Starting at $41,000, including shipping and charging wire for £ 120volt hookups.
Volt is eligible for a $7,500 federal tax credit and some state awards.
Chevrolet offers a lease for $350 in 36 months and will pay $2,500 when signing. A 240-
Volt charging link, it will replenish the battery in about four hours (it will take 10 hours to use the 120-
Voltage home Current) cost $490. G. M.
Estimated installation costs of $1,475-$240volt charging.
By contrast, Nissan Leaf, which went public in December, sold for $33,600. A 36-
Rent $349 per month, $1,999 due at the time of signing, and the car is also eligible for a federal and state tax credit. AdvertisementQ.
Why is the price of Volt so high? A.
The car has a lot of special parts and it will be relatively low volume at first
By the end of 2011, there were about 10,000 cars in North America. M.
Sales executives said last week.
The company has invested $0. 7 billion to transform factories that will produce cars and their parts.
If you add R & D costs, G. M.
A commitment of $1 billion has been made to Volt.
Another factor is 16 KW. hour lithium-
Ion battery pack, a complex assembly with a temperature control system.
The proportion of batteries in the total cost of the car can be as high as $10,000. Q.
How long will the battery last?
How much does it cost to change? A. G. M.
A battery warranty of 8 years or 100,000 miles is provided.
The company did not announce the replacement cost, which makes sense: the price may drop before it is replaced during the warranty period. Q. What other G. M.
Is the vehicle related to Volt? How big is it? A.
Volt shares its basic structure (and 105. 7-
Chevrolet Cruze is a new compact car. Because the T-
There are shaped batteries under the floor between the seats and only four passengers have space.
At 10: 00, the luggage capacity is medium. 6 cubic feet. Q.
How to clean the voltage? A.
The car has been certified as an ultra-low emission vehicle, the same as gasoline
There are only cars like Chevrolet Malibu and some BMW 3 Series models. G. M.
Said it intends to seek certification as part of a zero-emission vehicle, a more stringent standard that can provide a longer warranty and does not allow evaporation emissions, in some states, these positions are required to obtain special high-level positionsoccupancy-
Lane on highwayQ.
What is the area of G? M.
May there be some improvement in the future? A.
The voltage is quite heavy for 4-
Small car-
Nearly 3,800 pounds-
Because it has 435
In addition to the gasoline engine, there are also pound batteries.
Changing the iron engine block to aluminum will be the beginning. And while G. M.
The coefficient of pneumatic resistance is reported to 0 first.
28, the best Chevrolet has ever had, it is not as smooth as Prius in the wind tunnel, and Prius's Cd is 0. 25. Q. Why did G. M.
Go and develop new stuff instead of improving all the hassle of the previous EV 1? A. G. M.
There are many reasons for choosing to make EV1's memory disappear.
Of course, that car is completely experimental, and even if it has the range and seating capacity it needs to attract consumers, it does not have a logical production path.
On the other hand, voltage and quality sharing base-
Market model, reduce costs, simplify production while taking advantage of advances in battery chemistry and motor design over the past decade.
A version of this article was printed on page AU1 of The New York edition on October 17, 2010, with the title: with Volt's debut, engage in the real-world finishing myth.
Order reprint | today's newspaper | subscribe we are interested in your feedback on this page.
Tell us what you think.