The car manufacturer announced that it has developed a new idle stop system that uses direct injection technology. Mazda says the Smart Idle Stop System (SISS) will improve fuel efficiency by around 10% in urban areas, where vehicles stop frequently.
One of the SISS's main improvements over conventional idle stop systems is that it doesn't use the standard electric starter to restart the engine.
Instead, the SISS injects fuel directly into the combustion chamber and then ignites it to impel the piston and initiate engine rotation. The engine restarts in just 0.35 seconds. Such a short reaction time ensures smooth start-ups that are almost imperceptible in the cabin.
Mazda plans on introducing this technology to the marketplace sometime in 2009.
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