[frostys]

Originally Posted by 90503

Martin, you likely have stumbled upon the next area of fuel savings and mpg technology. And that would be automatically limiting throttle and gas pedal usage by the driver beyond what is needed from a dead stop to reduce fuel usage and eliminate wasteful hard launches. It's for our own good and probably could be utilized for the first 1320 ft of travel before full throttle is available to the driver. Drivers will get used to it, and it would be for the greater good of all makes of cars across the board. Consumers would only be glad and appreciative to be able to do their part by swallowing another kill-joy feature built into new cars.

Why would they deal with designing something like that when they can make the car hybrid and use electric motors for acceleration from a dead stop?

[2 Sweet]

OK, you guys have somewhat eased my concerns about the long term effects (maintenance $$$) of stop-start. But what about AFM? Cylinder deactivation has caused a ton of problems, for example, just look at all the 5.3L guys on the GMT900 forums. Ask them how they feel about AFM.

[nicktechla]

Originally Posted by 2 Sweet

OK, you guys have somewhat eased my concerns about the long term effects (maintenance $$$) of stop-start. But what about AFM? Cylinder deactivation has caused a ton of problems, for example, just look at all the 5.3L guys on the GMT900 forums. Ask them how they feel about AFM.

it will probably be replaced with this

https://www.delphi.com/dynamic-skip-fire-1

[Martinjlm]

Originally Posted by nicktechla

it will probably be replaced with this

https://www.delphi.com/dynamic-skip-fire-1

It already has been. At least at GM. There are still some AFM applications available, but that’s more because it takes a while to turn over (4) engine plants that build variants of the 5.3L and 6.2L V8 that uses DFM (Dynamic Fuel Management). As the plants get upgraded, the engines are switching from AFM to DFM.

GM’s period of exclusivity will be running out soon, so other automakers will likely start using it too.