launch control
Moderators: Mangus, robertisaar, dex
launch control
can tuner pro add-on the launch control to the chip ??
Launch control and full throttle shifting is usually obtained by using modified code. If you have a bin that has been modified to allow this then TunerPro can burn the modified bin to a chip (assuming your ecu's chip is supported) but you will need a definition file (xdf) to be able to edit any parameters that the modified code has.
Anyway, how actually this launch control works ?
i've tried to simulate this on a partial load (low load), increasing fuel delivery and strongly retarding the spark advance ... i've tried this for several rpm's rages (where, usually, in full load - the turbo produce boost) :
the engine stalls at that rpm, but the boost didn't increase so much ... i've read maximum 1psi on gauge
(
any ideas ?
i've tried to simulate this on a partial load (low load), increasing fuel delivery and strongly retarding the spark advance ... i've tried this for several rpm's rages (where, usually, in full load - the turbo produce boost) :
the engine stalls at that rpm, but the boost didn't increase so much ... i've read maximum 1psi on gauge
(any ideas ?
Custom Code
Editing an existing calibration section of a bin with a definition (road map) is what TP does. It can not create new operating system for your engine control.
That has to be done in Assembly language or other programming language and recompiled into a bin file for use. The parameters for that operating software is what can be edited by TP. The calibration values would be arranged in the program and an XDF file created indicating the address location and scale factor for each (so they make sense to you)
I was thinking of two ways to do traction control (more of a Launch routine) on cars that have no wheel sensors or feedback.
1.) Straight Spark retard table Vs Speed (with qualifiers on TPS% to initiate it) Tried this but didn't work in the S_AUJP V4. Is a code problem and the theory should work.
Will have another go at it on the next revision.
2.) Create a spark retard that works by comparing the vehicle speed on a specific slope from a standing start. Kind of percentage of variance from a known slope. If the tires break away the speed will increase faster than the slope and slightly retard until it comes back into line. Hopefully won't loose forward momentum, just lessen the hit as the tires spin.
Would need to track gear shifts by NV ratio or RPM increase then drop.
Each gear should have its own slope value and retard % for the variation.
Not sure how to implement it or any possible side effects but am still dreaming.
Just thinking out loud tonight
Jp
That has to be done in Assembly language or other programming language and recompiled into a bin file for use. The parameters for that operating software is what can be edited by TP. The calibration values would be arranged in the program and an XDF file created indicating the address location and scale factor for each (so they make sense to you)
I was thinking of two ways to do traction control (more of a Launch routine) on cars that have no wheel sensors or feedback.
1.) Straight Spark retard table Vs Speed (with qualifiers on TPS% to initiate it) Tried this but didn't work in the S_AUJP V4. Is a code problem and the theory should work.
Will have another go at it on the next revision.
2.) Create a spark retard that works by comparing the vehicle speed on a specific slope from a standing start. Kind of percentage of variance from a known slope. If the tires break away the speed will increase faster than the slope and slightly retard until it comes back into line. Hopefully won't loose forward momentum, just lessen the hit as the tires spin.
Would need to track gear shifts by NV ratio or RPM increase then drop.
Each gear should have its own slope value and retard % for the variation.
Not sure how to implement it or any possible side effects but am still dreaming.
Just thinking out loud tonight
Jp
