Race Technology

Posted: **Thu Feb 26, 2009 6:02 pm**

I'm not sure if this is an actual sensor related question.. but here goes

We were doing some brake testing; we set up 2 pairs of cones 100 feet apart. we mashed the throttle at the start, then mashed the breaks at the second set of cones... the problem is...

it did not take us seven seconds to stop... more like 1-1.5...and it didnt take 40 feet either...

i thought for sure the DL2 gps refresh was way faster then that... in fact i know it does.. ive done this sort of test before...

am i missing something? solar flares? demonic powers? we are next to an airport?

Posted: **Mon Mar 02, 2009 1:13 pm**

any thoughts?

Posted: **Sat Mar 07, 2009 12:17 am**

What is your "maximum rate of change" set to in the variables manager?

That had me in knots for a while wondering why a conversion equation wasn't working properly.

Posted: **Mon Mar 09, 2009 12:43 pm**

it says none set.. so i guess there is no maximum rate

Posted: **Mon Mar 09, 2009 3:09 pm**

You a picking up speed from the GPS (I'm grasping at straws too)?

Posted: **Mon Mar 09, 2009 6:32 pm**

osborni wrote:You a picking up speed from the GPS (I'm grasping at straws too)?

yup, all from GPS

Posted: **Tue Mar 10, 2009 10:40 am**

analysis options-> GPS tab-> check use raw GPS

also look at Variable Manager -> GPS variables and turn on "GPS vel raw"

Posted: **Tue Mar 10, 2009 12:09 pm**

ive done this type of test before.. so any thoughts as to why its not working now?

Race Technology

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BRAKE TEST