Alarm condition based on time?

Peter Carroll/Toronto
Posts: 110
Joined: Wed Jul 04, 2007 11:33 pm
Location: Toronto, Canada
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Alarm condition based on time?

Postby Peter Carroll/Toronto » Sun Aug 17, 2014 6:43 pm

On a Dash2Pro I am trying to implement a conditional alarm for oil pressure.

I want:

if(oilp<2bar AND rpm>2000 AND time > 500ms)
show alarm

It works now with:

IF(VAR_0010 >= 2000, VAR_3501, 10)

Then I trigger the alarm on the variable being < 2

Though it looks good while testing, the alarm occasionally triggers on the track. There must be a small transient setting it off.

How can I work the minimum duration into the equation? Is it just VAR_0001 > 500?

Where is VAR_0001 measured from? Start of logging? Start of "this"? etc?

Thanks
Peter Carroll, Toronto, Canada
DL1 and Dash2 - http://DriversMeeting.com/pcarroll

924RACR
Posts: 113
Joined: Tue Jul 13, 2010 5:34 pm
Location: Royal Oak, MI
Contact:

Postby 924RACR » Mon Aug 18, 2014 2:35 pm

I'm interested to see if there's a direct specific answer to this; otherwise, I'd expect that filtering of the oil pressure signal would be the next-best thing...

You ought to be able to play with the filtering in the analysis software to find the desired result...


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