Mazda develops unique Smart Idle Stop System using direct injection engine technology

The SISS uses direct injection technology to achieve an excellent engine restart, ensuring drivers do not experience any discomfort with the new system.

Mazda plans to introduce this core environmental technology to the marketplace in 2009.

Idling stop systems save fuel by shutting down the engine automatically when the car is stationary, and restarts it when the driver resumes driving.

Conventional idling stop systems restart a vehicle's engine with an electric motor using exactly the same process as when the engine is started normally.

Mazda's SISS, on the other hand, restarts the engine through combustion.

Mazda's system initiates engine restart by injecting fuel directly into the cylinder while the engine is stopped, and igniting it to generate downward piston force.

In order to restart the engine by combustion, the pistons must be stopped at exactly the correct position to create the right balance of air volume in each cylinder.

The Smart Idle Stop System provides precise control over the piston positions during engine shutdown to accomplish this.

The SISS indexes each cylinder and initiates fuel injection before the engine begins to rotate.

This enables the engine to be restarted in just 0.35 seconds*², roughly half the time of a conventional electric motor idling stop system.

"In addition to saving fuel, Mazda's Smart Idle Stop System ensures that the engine will restart quickly and with exactly the same timing every time. Drivers will feel no delay when resuming their drive, which means they can enjoy a comfortable and stress-free ride,"

says Annurag Chawla, Head of Marketing and Communications, Towell Auto Centre.

Towell Auto Centre provides quality service to all models of Mazda and makes owning a Mazda extra pleasant with its efficient after sales service and quick response time.

A network of 9 service outlets and 10 parts outlets spread across the Sultanate supports customer service.

It offers quick, efficient service with genuine parts available for all models and highly trained staff who pride in their quality of service.