Mazda'S I-Stop For Fuel Saving

[Rohnd]

The technology, which turns off the engine at stoplights, then quickly starts it again when the brake pedal lifts, is familiar from many hybrid cars. But Mazda appears to be the first manufacturer to make it widely available on a standard internal-combustion vehicle.

Mazdas system differs from previous auto-stop systems in that,it does not use the starter or alternator for restarts. Mazdas system, attached to a direct-injection engine, stops the pistons in the right position, squirts fuel into a cylinder with the engine stopped, then ignites it to start the engine. The engine restarts and reaches idle in a third of a second.

Mazda already produces these cars in their BL Chassis (Mazda3- 2010 onward) for 2.0 Liter ,LF-VDS engined for

Europe & Japan.

The saving on fuel is anticipated at 8 to 15% in cities with heavy traffic jams/more stop lights.

In USA this technology is still not adopted and keep in testing for Regulatory advice.

For your information.

Source: Internet & Mazda

Edited October 4, 2010 by Rohnd

[dillongt]

The technology, which turns off the engine at stoplights, then quickly starts it again when the brake pedal lifts, is familiar from many hybrid cars. But Mazda appears to be the first manufacturer to make it widely available on a standard internal-combustion vehicle.

Mazda’s system differs from previous auto-stop systems in that,it does not use the starter or alternator for restarts. Mazda’s system, attached to a direct-injection engine, stops the pistons in the right position, squirts fuel into a cylinder with the engine stopped, then ignites it to start the engine. The engine restarts and reaches idle in a third of a second.

Mazda already produces these cars in their BL Chassis (Mazda3- 2010 onward) for 2.0 Liter ,LF-VDS engined for

Europe & Japan.

The saving on fuel is anticipated at 8 to 15% in cities with heavy traffic jams/more stop lights.

In USA this technology is still not adopted and keep in testing for Regulatory advice.

For your information.

Source: Internet & Mazda

nice info...

[madmax]

BMW has been offering this technology on many of their cars including the Minis.

http://www.bmw.com/c...start_stop.html

Edited October 5, 2010 by madmax

[Rohnd]

BMW has been offering this technology on many of their cars including the Minis.

http://www.bmw.com/c...start_stop.html

Is it(BMW) same as the Mazda's system without involving Starter motor ?

Many hybrid cars already use this to start/off the combustion engine at changes in RPM with the starter motor.

Mazda's technology incorporates first ignite the the correct cylinder (compressed at the last stop) then

resulted crank movement to ignite other cylinders using some analysis/action by ECU.Not just involving RPM sensing and then follow conventional actions automatically.