First off I need to introduce myself......I am completely new to the circutry world but have found my way in by way of my fastination with automobiles. As most of you know, I need to do much reading and homework but my efforts have been somewhat non-effective. Hence the reason I am calling on you guys.
My project:
I am working on a homemade paddleshifting devise for my car and I have only gotten so far. I have the circutry diagram form my trannsmission and have concluded that there is two routes I could take to accomplish my goals. One way is to bypass the shifter itself, tie into the signal wires going to the tcu from the shifter wich tells the tcu the location of the shifter..ie..Park, Reverse, Neutral, Drive, 2nd, and 1st. I would need to figure out a way to set up a sequential switch that will trigger each gear selection in nearly the same exact secuence as with the shifter knob itself only going from lowest to high gear starting from N. My particular tranny has a switchable overdrive so my actual shifting sequence would be P-R-N-1-2-3-4. The only problem here is that if I simply tie into the shifter then I would not have full controll over the tranny because when you slow down the tranny would automatically down shift. The other method, which I am still alittle baffled about would be to tie into the two pulse generators that control the shift solinoids themselves which would bypass the whole electomatic control system and give me full control. Either way, I need to figure out a switch that has two part, one for upshifting and one for down shifting. I was looking at my digital camera the other day and noticed that when viewing the photo's you have taken, one selection button takes you through the photo's in the order you took them and the other selection button takes you back in the reverse patturn. Something like this would work only I wuld need to break the tie between the two switches so they dont start the sequence over after the final position has been reached.....this would be bad bad bad for a tranny. I could provide the circut layout if anyone knows anything about automatic trannies....maybe you could set me on the right or most simplistic path.
Sorry for the long post and thanks for looking
My project:
I am working on a homemade paddleshifting devise for my car and I have only gotten so far. I have the circutry diagram form my trannsmission and have concluded that there is two routes I could take to accomplish my goals. One way is to bypass the shifter itself, tie into the signal wires going to the tcu from the shifter wich tells the tcu the location of the shifter..ie..Park, Reverse, Neutral, Drive, 2nd, and 1st. I would need to figure out a way to set up a sequential switch that will trigger each gear selection in nearly the same exact secuence as with the shifter knob itself only going from lowest to high gear starting from N. My particular tranny has a switchable overdrive so my actual shifting sequence would be P-R-N-1-2-3-4. The only problem here is that if I simply tie into the shifter then I would not have full controll over the tranny because when you slow down the tranny would automatically down shift. The other method, which I am still alittle baffled about would be to tie into the two pulse generators that control the shift solinoids themselves which would bypass the whole electomatic control system and give me full control. Either way, I need to figure out a switch that has two part, one for upshifting and one for down shifting. I was looking at my digital camera the other day and noticed that when viewing the photo's you have taken, one selection button takes you through the photo's in the order you took them and the other selection button takes you back in the reverse patturn. Something like this would work only I wuld need to break the tie between the two switches so they dont start the sequence over after the final position has been reached.....this would be bad bad bad for a tranny. I could provide the circut layout if anyone knows anything about automatic trannies....maybe you could set me on the right or most simplistic path.
Sorry for the long post and thanks for looking