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Old 08-20-2010 | 09:12 AM
  #5248  
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g12314
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Originally Posted by irgo
Jimmy i must sure you that i appreciate as previously i said.
you can correct me if i'm wrong, and i have been testing your calculator.
it's good idea.
Thanks, but I dont understand why you would use the calculator when you specifically called it incorrect. Like I said, if it is not right, please provide the appropriate formula to determine the Start & End RPM's from the speed passion 528 settings.

Originally Posted by irgo
my suggestion is to calculate RPM Start = DMTS RPM.
as "RPM START" is the result of your calculator.
The original calculator file does exactly this. Setting #13 defines the start RPM for the timing curve.

Originally Posted by irgo
Note: when DMTS is reach it's maximum degree as defined ex:0~21°.
remember that DMTS is Dynamics.
Example : if max 21°DMTS rpm is 8000rpm then the start rpm defined is 8000rpm, but when you change max 18°DMTS rpm is 6000rpm your car suddenly become slow, as Supercharge is not activated. and your End RPM stuck there
at 6000rpm.
I agree with the definition of the timing being dynamic, however I do not understand the example. If I select 21 DMTS timing (#9 setting) and a Start RPM of 8000 (#13 setting), the ESC will have ZERO timing advance applied to the motor until 8000 RPM. At 8000 RPM it begins to add timing until you reach the calculated End RPM at which point 21 degrees of timing is applied. So for example:
Start RPM = 8000: 0 timing
Mid point RPM = 15000 (8000 + 22000) / 2 gives 10.5 timing (21 / 2)
Calculated End RPM = 22000: 21 degree timing

Thats my 0.02 on it all. If it is incorrect, please provide the examples to determine the correct operation.

Jimmy
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