Quote:
Originally Posted by Tygen1
ChrisT, just try to draw up your proposed wiring diagram and I'm sure you see why I was leaning towards the PLC idea. Although I've got three Shift Solenoids, so mines a bit more complicated. The timing issue of turning off switches as you simultaneously turn on others is also an issue. Here is a link to the diagram I finally settled on to get the mircro switches working: Diagram for Manual shifting ATX! - TeamZX2.com
Maybe this will help? |
There is no simultaneous switching in my setup. The biggest problem would be shifting very quickly so that the transmission didn't get the signal to engage 1st gear while you were between gates.
What would happen is that the first gate would be 1st gear, and as you're leaving first gear, your shifter is headed for gate 2, which is gear 2, and has a single switch to turn on solenoid #1, while leaving solenoid #2 off. As you leave 2nd gate, both solenoids are off, which puts the trans back into first gear, before you can get to 3rd gate. 3rd gate has one switch, which energizes solenoid #2, and not solenoid #1.
Shifting between gate 3 and gate 4, turns off both solenoids again, putting you back into first gear again, until you get into gate 4, which has a single switch that turns on both solenoids.
You only need 3 momentary contact switches for a 4 speed with 2 solenoids.
The only real problem w/ the shifter is that it goes back into 1st gear every time you move between gears, so timing would be critical, and that depends solely on how the solenoids are used to activate each gear.