Ragtops’s Roadrage

Entries from January 2008

Clean and Green Diesel

January 29, 2008 · Leave a Comment

Along with hybred cars, we may start driving new diesel powered cars. North American refiners will soon be making ultra low sulfur diesel fuel. This will help to reduce the sulfur content from 500ppm to 15ppm.

No more smoke.

In Europe low sulfur diesel is a very big deal and there are several diesels that offer better acceleration and economy than
their gasoline counter parts. BMW’s 120d has 163bhp, goes 0 – 60 in under 8 seconds, and achieves 49.6 miles per gallon.

Benz offers the C320 CDI SE that has 224bhp, and
over 360 lb foot of torque. This car gets just under 48 mpg on the highway, with an acceleration of 0 – 60 in under 7 seconds.

You won’t find a gasoline engine that offers this kind of blend of fuel economy and excellent performance.

Categories: Uncategorized

How does a Hybred car get such great gas milage, anyway?

January 29, 2008 · Leave a Comment

Three primary components are integrated to make a hybrid: an internal combustion gas engine, an electric motor and a high-powered battery. A process called regenerative braking is used to capture energy and charge the battery. This is energy that would normally be lost during coasting or decelerating. The battery which is continuously recharged through this process provides power to the electric motor. If necessary, power from the gasoline engine may also be diverted to charge the battery. These charging strategies create an electrical power system that never needs to be plugged in to charge from an external source.Those are the basics of hybrid cars in general. We will divide hybrids into two categories to examine further how the three components work together. Each category of hybrids incorporates the three components in its own way.Mild Hybrids -
In the mild hybrid configuration the electric motor is not able to function independently of the gas internal combustion engine. The vehicle is powered primarily by the gas engine, and the electric motor only provides supplemental power to assist when needed. The electric motor is capable of drawing energy from the battery or generating electricity to charge the battery, but it isn’t capable of doing both at the same time. The Honda Civic and Insight are mild hybrid cars.

Full Hybrids -
Full hybrid cars integrate the three components in a way that allows the electric motor and the gas engine to operate independently of each other. For instance the electric motor is capable of operating on its own to provide light acceleration at low speeds. The gas engine then starts up and takes over at higher speeds. Both the electric motor and gas engine can operate in unison when more power is needed during hard acceleration, such as when climbing hills. Full hybrids are also able to draw energy from the battery and charge it at the same time. The Toyota Prius and Ford Escape are full hybrids.

Despite their differences, both types of hybrid cars achieve the goal of increased fuel economy and decreased emissions over standard gas or diesel powered vehicles.

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Categories: engines · hybred

GoodBye and Good Buys

January 24, 2008 · Leave a Comment

Detroit

GM, under pressure from its competitors, is no longer making money in the American car market – and it has been closing plants all across Flint.

Now there are only 6,000 GM workers in Flint, compared to 100,000 at the peak, and the town and workers are suffering.

“Flint has the highest rate of unemployment, poverty and homelessness in Michigan,” And GM has already told the unions it wants to cut the generous retirement and health care benefits it promised its workers in the halcyon days of success. The company does plan to build more car plants in the future – but only in places like China and India, not in the United States.

But 400 miles south of Flint, Michigan in Georgetown, Kentucky,
Toyota builds 500,000 cars a year at its vast Kentucky plant

Toyota is the fastest-growing car company in the United States, and it is building a new factory every year to keep up with demand.

And it is set to overtake GM this year as the world’s largest car company by sales, mostly because of a well-deserved reputation for quality and reliability – and the Camry has been the best-selling car in America for the last ten years.

Toyota has no trouble hiring the right sort of workers – 100,000 people applied for the 3,000 jobs when the plant opened in 1990.who now read in the papers about what is happening to autoworkers in places like Flint.

Why ?

While it was inevitable the big three would eventually lose their monopoly position, their failure to adapt their production methods and meet changing consumer tastes meant that US firms failed to innovate in the design of cars, preferring to make money by increasing the size and weight of their vehicles by adding extras like air conditioning, power steering, and fancy sound systems.

It was left to European manufacturers to develop disc brakes, rack-and-pinion steering, air-cooled and diesel engines since Henry’s mass production system discouraged innovation.

Toyota encouraged innovation – changing its production system to become leaner and more efficient than its rivals. But, it was the oil crisis in the 1970s that first illuminated the problems of US automakers. For the first time, smaller cars were the rage, and US consumers found that cars like the Toyota Corolla were an attractive alternative to big American cars.

Imports of Japanese cars soared in the 1980s, to the chagrin of the US companies and the unions alike, taking nearly one-quarter of the US market.

US car imports

And when the companies pressured the US government into limiting imports from Japan, Toyota and Nissan started building car plants in the US.

By 2005, these Japanese “transplants” were producing 4 million cars a years, one-quarter of US output, and more than GM.

The Japanese located their plants in low-wage, non-union areas of the US and brought new, more flexible production methods as well.

As a result, they could make money on smaller cars and change models more frequently.

The US car companies tried and failed to design a competitive small car.

They also experimented with Japanese production methods but neither seemed to do the trick and close the quality gap.

Honda, which already has the most fuel-efficient lineup in the U.S., announced in May that it will sell the new hybrid-only Prius competitor in the U.S., Japan and Europe starting in early 2009. It also announced that it will build a new hybrid version of its Fit subcompact.

According to James Womack, author of the influential book The Machine that Changed the World, it was easy for everyone to say they accepted lean production, but much harder to actually implement it.

Detroit Auto Show
Pretty much every exhibit in the vast Cobo Center contains prominently-displayed cars powered by alternative fuel such as ethanol made from plants, or by engines powered by conventional fuels such as petrol and diesel that are up to 25% more efficient than they were in the past.

Most carmakers also display hybrid models, where such conventional engines are coupled with electric batteries that are getting smaller and lighter by the day, thus increasing the possible range travelled by electric cars.

“This auto show may be different from the past,” observes David Friedman, research director at the Union of Concerned Scientists’ Clean Vehicle Program.

“It may actually be giving a real good glimpse for some of the consumers of what might be out on the road in the next few years.”

Auto makers are under pressure to produce more efficient cars that use less fuel and thus pollute less, in part because petrol prices have soared in recent years in the US, but also because they will soon be required to do so by law.

GM concept
Announcing the arrival of a technology does not mean it is ready for sale to consumers
Aaron Bragman,
Global Insight auto analyst

Detroit’s desperate struggle

In December, US President George W Bush signed an energy bill that will force the industry to cut average emissions from all vehicles.

By 2020, the average must have been slashed by 40% to 35 miles per gallon, and the industry is convinced they will be able to deliver – though it will not come cheaply.

“It’s going to come at some cost,” says Paul Traub, economy and industry analyst, Chrysler, estimating that the auto makers’ efforts to comply with environmental regulation could add as much as $7,000 (£3,400) to the price of trucks and cars.

Categories: Auto Industry