MembersPage/HansK/LaunchControlAndShiftCut (2007-01-16 09:05:21)

2006.09.13

I have install/enable Launch controle and Shift cut on my VW golf running VEMS V3.2 with firmware/MT 1.0.53 using input channel 6 and 7 (mcp3208 + two 10KOhm pullup).


I can not use the original shift-cut function. At least not with the type of gearshift/gearbox that's in my old VW Golf, it is very hard to shift gear from 1 to 2 as fast as from 2-3 and 3-4.

I think a function like the launch controle, with a soft rpm limiter that's on as long as clutch is down, is much better fore shift-cut. It would also make it posible to drive the car easely on road, for every day use or between stages in rallys, without disabling the function.

I am successfully useing the launch controle function fore shift-cut, but is then missing it fore launch.

I find the shift-cut function useless and hope very much it is chanced before spring (race start), but what is others experiences with this function? What do you think of it?

Comments from Emil:

We are using shiftcut and it works very good, clutch doesnt even have to be pressed completely, Function should not ever be changed in my opinion. You must have something wrong in the car, either with first gear traction or broken gear box. We are loosing approx 0.2 bar boost during shifting.

The only problem i had on some cars is that it gets too powerful and tires go up in smoke, or clutch slipping

//Emil Larsson


Old suggestions fore shift-cut:


HW setup

Two 5-10KOhm resistors (marked with red) must bee placed at R85 (ch.6) and at R86 (ch.7), to pull the inputs op to +5V (+5V = off).

Digital-inputs.JPG

From the holes (marked with blue, the top one is ch.7) you have to mount wires to some free pins on one of the Econoseal-III connectors.

Digital-inputs_pic.JPG

Notes


Here is the external wiring I'm planing.. a contact under the clutch, and one on the steeringwheel (or where i'll find it convenient) to activate launch-controle insted of shift-cut.

The shift-cut function is activated when you press the clutch unless you press the ekstra button while pressing the clutch. When the clutch has been pressed you can release the button and Launch-controle is activ insted of shift-cut until the clutch has been released one time.

LaunchControle-ShiftCut_contakt_wiring.JPG


MembersPage/HansK