Mazda i-stop engine-idling-stop system wins another major award

Mazda's innovative i-stop engine-idling-stop system has won yet another award, this time at the lchimura Industrial Awards. While idling stop systems are now becoming commonplace due to the approximate 10% fuel savings they offer, conventional engine stop systems rely on a motor to restart the engine, whereas Mazda's i-stop restarts the engine through combustion: fuel is directly injected into a cylinder while the engine is stopped and ignited to generate downward piston force. Mazda's use of principles unique to the direct injection spark ignition (DISI) engine restarts the engine in just 0.35 seconds, about half the time of most other competing systems, while minimizing noise and vibration and drain on the batteries.

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