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Fusion to be the first non-hybrid mid-size to offer start-stop

The amount of research and development automakers are put into saving even the smallest amounts of fuel are impressive. The research is also necessary if automakers are to meet much more stringent CAFE standards moving forward. One of the technologies that will help automakers meet those fuel economy standards is start-stop technology.
Originally, start-stop technology was used on hybrid vehicles to allow them to save fuel while stopped at red lights or in traffic. The technology is now spilling over into traditional vehicles to help them save fuel. Ford will offer start-start technology as an option on the 2013 Fusion when equipped with the 1.6-liter EcoBoost engine. The technology will be dirt cheap, meaning that it's likely to be ordered on many of the vehicles that hit streets. Ford has price the start-stop option at $295.
Ford says that the new fusion is the first midsize sedan available with automatic start-stop that isn't a hybrid. Just as the technology works on a hybrid vehicle, when the Fusion driver comes to a complete stop the engine will turn off automatically to cut fuel consumption and reduce emissions. When the driver releases the brake pedal, the engine will automatically restart and be ready to move by time the gas pedal is pressed. 
2013 Ford Fusion family [Source: Ford]

“We expect the average Fusion driver with the 1.6-liter EcoBoost engine and Auto Start-Stop will save about $1,100 more than other midsize sedan owners during five years of driving,” said Samantha Hoyt, Ford Fusion Marketing Manager. “That’s cash in their pocket and time saved with fewer trips to the pump.”
Ford says that drivers who operate the vehicle in heavy urban areas and in city traffic will see up to 10% savings on fuel consumption. The average driver will see an increase in fuel efficiency of about 3.5%. As long as the technology is truly seamless and there is no hesitation between the engine stop and engine start, the majority of drivers will never notice the technology in operation.

The new 2013 Ford Fusion will go on sale this fall and will offer two different EcoBoost all engines. The Fusion will also be offered in hybrid, plug-in hybrid, and naturally aspirated four-cylinder versions.

Source: Ford

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Start-Stop is good tech.
By Noritsu on 4/2/2012 10:53:14 AM , Rating: 4
Don't concern yourselves with the claimed MPG increase. Start-Stop technology does not display significant gains on the US fuel mileage test cycle. It has been around in Europe and other parts of the world for years, but due to its low impact on EPA MPG ratings it has been ignored as the cost to include it was too high to justify for the "stated" fuel mileage gains.

In addition, the US version of the 2012 BMW 3 Series comes standard with Start-Stop technology. With the size of the new 3 Series, I would be boggled if it wasn't classified as a mid-size vehicle. Ford's claim seems questionable here.

Regardless of being first or not, it's good to see this as a low cost option on what seems to be a very promising car.

RE: Start-Stop is good tech.
By bebimbap on 4/2/2012 12:12:18 PM , Rating: 2
Traditionally if you don't stop your engine for more than 30 seconds at a time, you waste fuel vs keeping it on for those 30 seconds. If you can just start and go and go and stop all the time without wasting fuel something is vastly different about this method than the traditional method.
Every little bit helps.

RE: Start-Stop is good tech.
By StanO360 on 4/2/2012 1:18:14 PM , Rating: 2
My guess is that the losses for short stops are greatly offset by long lights or traffic stops

RE: Start-Stop is good tech.
By iamezza on 4/3/2012 5:59:07 AM , Rating: 3
Interesting, I remember about 2 years ago on a car show on TV they said the 'break-even' point for turning off your engine vs leaving it running was around 3 seconds.

I guess it would depend a lot on the car in question.

Usually when engines are at full operating temp they don't take much effort to start again.

RE: Start-Stop is good tech.
By Boingo Twang on 4/2/2012 12:54:20 PM , Rating: 2
Don't concern yourselves with the claimed MPG increase. Start-Stop technology does not display significant gains on the US fuel mileage test cycle.

Forget the EPA MPG cycle, this does produce large fuel economy gains in the real world like say when you're stuck idling in traffic for long periods.

RE: Start-Stop is good tech.
By NovoRei on 4/2/2012 10:44:15 PM , Rating: 2
Start-Stop was developed by Bosch Brazil in 2005/6(at least one variant). I tested it 4 years ago. At the time the only difference to a normal car was the ECU programming and a two times more reliable starter engine.

All in all, it is just good for someone who drives in the city, who gets 30min traffic jam everyday.

Ford implementation may have a more sophisticated setup.

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