Mazda has announced the world’s first idle-start-stop system that restarts the engine without the use of a special starter, and will put the system into one of its production cars in 2009.
The proprietary system called the Smart Idle Stop System restarts the engine by injecting fuel via DISI direct injection into the cylinder and igniting it to force the piston down instead of using a conventional starter like other idle-stop systems. Mazda claims this results in a quieter and quicker restarting of the engine.
When the SISS system stops the engine, it makes sure the pistons that are in the compression stroke and expansion stroke are stopped in the position that creates the right balance of air volume to ensure a smooth automatic restart. The starting process then rotates the engine slightly backward, after of which normal ignition systems take over and the engine moves forward as normal.
Mazda also announced plans to reduce vehicle fuel consumption across its range by 30% by the year 2015. By 2011, all new gasoline engines will incorporate DISI direct injection. From 2011 onwards, Mazda will also introduce new diesel engines. The new 16X RENESIS rotary engine will see an introduction in the early 2010s.
After dabbling for years in the IT industry, Paul Tan initially began this site as a general blog covering various topics of personal interest. With an increasing number of readers paying rapt attention to the motoring stories, one thing led to another and the rest, as they say, is history. An avid electronic gadget aficionado as well as big-time coffee lover, he's also the executive producer of the Driven motoring TV programme.
I guess new Mazda3 would be the first model to have this system, in Japan.
Zoom Zoom…
smart! considering how a lot of fuel is wasted in congested asian cities, this will be a good piece of technology.
any cars with start-stop in malaysia?
Old thought, new R&D. More R&D please.
“any cars with start-stop in malaysia?”
2 generations of civic hybrid…
bavarian said,
June 23, 2008 @ 3:54 pm
any cars with start-stop in malaysia?
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Hybrids probably don’t count, but there are a few 2nd gen Prius’ on the roads already. And so with Civic hybrids.
You can do start/stop with any car. Just turn off the ignition at lights. :p
Which is what I normally do anyway on longer lights.
Start/stop wont really work well here due to the tropical heat.
engine stop = air cond off. So if you are stuck in a jam, your engine will continue to run or you’d roast in your car.
2nd gen civic hybrid’s aircond still runs when the engine stops
is there a time limit that car owner can set before this function activates itself?
will this new feature save fuel? or its just a smooth start stop thing?
ofcos it saves fuel! the danger of it is you do not know when your cars switch off or switch on.
hydrogen is definitely the way