Feature Request MAF "Use event average"

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Type4
MS/Extra Newbie
Posts: 3
Joined: Sat Jun 28, 2014 3:43 am

Feature Request MAF "Use event average"

Post by Type4 »

Hi,

I want tu use my MAF Sensor as primary Load. But I have some problems with the ADC values I measure.
At Low RPM and wide open TP I have jumps in the ADC Values.
ADC7.JPG
Here is a small screen shot with a low pass with 1K and 1uF, like recommended in the HW Manual.

As Workaround I use a RC low pass with 2,2Kohm and 22uF capacitor.
With this low pass I get better Results, but not as perfect like the MAP values


I think a better way would be an oversampling, or like the MAP sample method "use event average"
Is it possible to integrate this feature into the next release?
I'd searched with notepad++ in the C-files, but I'm not very handy in programming.
And I can't find the areas with the sample settings to create an individual code.... :RTFM:

Regards,

Tom
jsmcortina
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Re: Feature Request MAF "Use event average"

Post by jsmcortina »

Good question.

We saw the benefit in adding this to MS3. The MS3 code also takes it further and integrates the flow.

MS2 does not have enough processor or RAM to perform the integration. It might be too slow to perform the period averaging too.

I'll add it to the TODO to investigate.

James
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Type4
MS/Extra Newbie
Posts: 3
Joined: Sat Jun 28, 2014 3:43 am

Re: Feature Request MAF "Use event average"

Post by Type4 »

Hi James,

thanks for the reply. So as I understand for a complete integration there is not enough memory in the MS2.
But would it be possible to do a „light integration“ with less values?
For example 20 samples per cycle?
I don't know how many samples you use for the Map Sensor.

Best Regards,
Tom
jsmcortina wrote:I'll add it to the TODO to investigate.
Thanks
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