Mazda poised to stop...then start
THE first Mazda equipped with i-stop, the company's idling stop system, is now undergoing local testing ahead of next year's Australian launch of the fuel saving technology.
An engineering team from Mazda's head office in Hiroshima is working with Mazda Australia ensuring that i-stop delivers on its promise of fuel saving without sacrificing driving fun.
Local testing will ensure i-stop technology is compatible with local fuel quality and climate conditions and meets the high standards of Australian drivers.
The i-stop system reduces fuel consumption by automatically shutting down the engine when the vehicle comes to a standstill.
Mazda's i-stop system has been designed for use with direct injection engines and uses combustion energy to restart the engine in just 0.35 seconds, about half the time of most other idling stop systems.
Only when the vehicle first comes to a standstill does the engine shut down automatically although the engine's control module does not cut off the engine until the pistons are in the optimum position for restart.
As the driver lifts the brake pedal to continue driving, fuel is injected directly into the cylinder, atomised, then ignited forcing the piston down. At the same time, the starter motor applies a small amount of additional momentum to the crankshaft resulting in an extremely quick and refined restart of the engine.