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Old 12-10-2008, 12:03 PM   #1
AVANTI R5
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Default Mazda presents i-stop eco-fiendly technology




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The latest environment-friendly products aimed at lowering emissions of CO2 even more will be displayed by Mazda Motor Corporation at the Eco-Products 2008 exhibition from December 11 -13, 2008. The show , which will take place at the Tokyo International Exhibition Center, is one of the leading environmental events to happen in Japan. The i-stop of Mazda is a clever branded engine stop-start system that enhances fuel efficiency by an estimated 10 percent.

The system accurately controls the positions of the pistons when the engine is turned off, and then utilizes the direct injection technology of Mazda to execute an ignition restart. This brings back the engine to idling speed in just 0.35 seconds for versions with an automatic transmission, guaranteeing a natural driving sensation with an absence of a feeling of delay. i-stop is the available variant of Smart Idle Stop System technology of Mazda, and is ready for inauguration next year.
http://www.4wheelsnews.com/mazda-pre...ly-technology/
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Old 12-10-2008, 12:54 PM   #2
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I drove a BMW 1-Series in Europe this summer and it had this feature where it would stop whenever the car was stopped and I released the clutch. I wonder if it is the same technology.
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Old 12-10-2008, 01:29 PM   #3
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Originally Posted by george2288 View Post
I drove a BMW 1-Series in Europe this summer and it had this feature where it would stop whenever the car was stopped and I released the clutch. I wonder if it is the same technology.
My WRX does that too ... oh wait ... its called stalling j/k

It's probably different. Car and Driver wrote an article on this in one of the recent issues.

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accurately controls the positions of the pistons when the engine is turned off
This is the key if I remember correctly. I think they have something to prevent the pistons from stopping in the TDC or BDC positions.
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Old 12-10-2008, 04:55 PM   #4
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Quote:
Originally Posted by george2288 View Post
I drove a BMW 1-Series in Europe this summer and it had this feature where it would stop whenever the car was stopped and I released the clutch. I wonder if it is the same technology.

its completely different. The BMW stop/start technology starts the motor normally with a starter motor.... this new mazda system starts the motor without use of the starter motor.
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Old 12-10-2008, 05:17 PM   #5
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Pretty slick. Wonder how it works exactly and if they will ever offer it on a manual.
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Old 12-10-2008, 06:04 PM   #6
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it seems that they control a piston's stop location, that way, you'd have a cylinder with full compression. inject fuel (DI right into the combustion chamber) and light the spark plug.
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Old 12-10-2008, 06:06 PM   #7
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hm.. thats interesting
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Old 12-10-2008, 06:34 PM   #8
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Steve Jobs is gonna have a fit
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Old 12-10-2008, 06:49 PM   #9
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Steve Jobs is gonna have a fit
BAWHAHAHAHAHAHAHAH
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Old 12-10-2008, 07:53 PM   #10
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Seriously, I am so sick of everything being called i-this and i-that. It's dumb.
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Old 12-11-2008, 12:39 AM   #11
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i-know-eh
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Old 12-11-2008, 08:21 AM   #12
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About time there's more start/stop technology in cars, and this implementation sounds very cool. Go Mazda!
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