# acceleration enrichment function

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I have a question for acceleration enrichment function.

In case "sequential injection mode" and "accel mode" = "TP(Main)",

What is the trigger to activate additional fuel injection by acceleration enrichment function?

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When set to TP mode the trigger will be rate of change of TP.  The setting "Accel sens" adjusts how much enrichment is added for a given rate of change.

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Thank you for the quick reply.

Could you confirm the following my understanding for the trigger is correct or not?

dTP/dt=3% -> non trigged

dTP/dt=5% -> trigged

I want to know calculation logic of additional fuel.

I can understand "Maximum Acceleration Enrichment = Accel Clamp Value % x Accel Load Value x Accel Cold Value".

However I can not find calculation formula for actual additional fuel in Help.

Therefore I can not understand how to work "accel sense" for calculation of actual additional fuel.

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Could you confirm the following my understanding for the trigger is correct or not?

dTP/dt=3% -> non trigged

dTP/dt=5% -> trigged

It would be dTP/sample.  I only have a vague recollection that the sampling frequency for TP is 500Hz but I would need to confirm that with engineering as I dont remember clearly.

So if deadband is set to 1% and the throttle moved more than 1% within 1/500seconds then it would be triggered.  0.5-1.5% would be typical deadband numbers I am used to seeing.

However I can not find calculation formula for actual additional fuel in Help.

Therefore I can not understand how to work "accel sense" for calculation of actual additional fuel.

Im not sure of this.  I have never really needed to know this info so it is not something I have a lot of knowledge about.  I suspect it is just an arbitrary unitless "factor" but I will see if I can get any more info from engineering if it is easy to understand.

You can log or watch the parameter "Accel fuel" to get a pretty good idea of where it is working and how much fuel it is adding, I dont normally need any more info than that to get it working well enough.

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Thank you.

Understood.

If you get further information, please let me know.

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