Gearshift counter
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Gearshift counter
Anybody have a good Idea on how to build a small gearshift counter, that when I push the shift button on a bike it will change voltage outputs to the MS so I can use the gear position inputs. Don't want to use wheel speed as sometimes the speed sensor spikes and I think that will confuse the MS. For drag race only, only has to remember upshifts.
Fastest MS powered vehicle on the planet ! 6.60@208mph
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Re: Gearshift counter
Before rejecting it, did you already try the VSS/RPM method for gear detection? It works ok on my 12sec car with a manual gearbox.
James
James
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My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
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New users, please read the "Forum Help Page".
Re: Gearshift counter
I'm a little late into this.. I'm a fan of picaxe processors. There is the 08M2 which is an 8 pin DIP layout. It has a DAC 5 bit output. Or you could do a PWM to low pass and start at 20% (1 volt= gear 1) then go to 40% (2 volts = 2nd gear) up to 5 volts for 5th gear... If you have more than 5 gears then divide by 1/2 volt for each gear... Is this what your trying to do?
http://www.picaxe.com/
The IDE is free to down load and the chip sets are a few bucks. For your app a small copper proto board would work. Still 5 volt power from the MS mother board or the tps output.
Later Ryan
http://www.picaxe.com/
The IDE is free to down load and the chip sets are a few bucks. For your app a small copper proto board would work. Still 5 volt power from the MS mother board or the tps output.
Later Ryan
306 SBFord, Torquer II EFI intake, 60 lbs injectors, 8 LS2 coils, VS Racing 7668 turbo, 4R70W, MS3x fw1.4 w/built in trans controller.
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Re: Gearshift counter
Yes, Yhank you. Will try one but will also try the internal setup as well with the VSS and ratio inputs.
Fastest MS powered vehicle on the planet ! 6.60@208mph
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Re: Gearshift counter
wow, thank you James for the trick!! It works very well for me too!!! I didn't know that method, very simple and functionaljsmcortina wrote:Before rejecting it, did you already try the VSS/RPM method for gear detection? It works ok on my 12sec car with a manual gearbox.
James
I have just tried creating in MLV a "Gear" Custom Field with this formula:
(([VSS]/[Field.RPM] > 0) && ([VSS]/[Field.RPM] < 0.009)) ? 1 : (([VSS]/[Field.RPM] > 0.008) && ([VSS]/[Field.RPM] < 0.017)) ? 2 : (([VSS]/[Field.RPM] > 0.016) && ([VSS]/[Field.RPM] < 0.022)) ? 3 : (([VSS]/[Field.RPM] > 0.021) && ([VSS]/[Field.RPM] < 0.026)) ? 4 : (([VSS]/[Field.RPM] > 0.025) && ([VSS]/[Field.RPM] < 0.030)) ? 5 : 0
was an experiment, but tried and works.
Fabio
Yamaha V-Max V4 paired odd-fire 1200cc engine - ITB - COP
MS2/Extra Pre 3.4 beta 11
Sequential spark & fuel - ITB Algorithm
MS2/Extra Pre 3.4 beta 11
Sequential spark & fuel - ITB Algorithm