Regarding the Cut Bilp between G4+and Cantcu

[dejun]

Hello, how should I set up the cut bilp for cantcu in the link? How to fill in the table for the electronic throttle target values of 2 and 3 corresponding to cut bilp

vq37cantcu111111.pclr

[Adamw]

What transmission do you have?  DCT or auto?

[dejun]

DCT, controlled by cantcu

2 minutes ago, Adamw said:

What transmission do you have?  DCT or auto?

dct,Control by cantcu

[Gsab]

Following as I need to set similar.....

[Adamw]

For the blip I would set up like below.  To explain:

E-throttle target 1 is the normal throttle map, when TCU requests a blip, CAN DI2 will switch on E-throttle target 2.  E-throttle target 2 moves the throttle to whatever position CAN AN V2 commands - you will note I have put a maximum of 40% in this table so the ECU will not open the throttle more than 40% even if the TCU commands 100% due to an error for example.  

 

For the cut:

In G4+ there is no suitable function to apply a variable percentage cut based on a CAN message.  What I usually suggest for DCT transmissions is to use a variable amount of retard only for low load shifts - say below about 50% throttle, then for heavier shifts above 50% throttle we use a fixed % cut and some variable retard. 

To explain the setup below; CAN DI1 (cut request for TCU) turns on the 4D ignition trim (variable amount of retard based on throttle and % cut request), CAN DI1 also is used to request a shift cut from the gear shift control function.  The gear shift control function has a TP lockout of 50%, so for gear shifts below 50% TP we get only retard from the 4D table, above 50% TP we get retard from the 4D table and 55-65% ign cut depending on which gear we are in.  

 

Note these are all just example numbers, I have no idea of your engine torque curve and how good your clutches are so you have to tune all these settings to achieve an acceptable torque reduction.  

 

vq37cantcu example shift settings.pclr