Progress on the pantograph doors on my 39 Packard is really coming along. I was originally thinking period style manual winders but I’m short of interior door space to run a winder handle due to the pantograph hinge mech. Today I found a brand new pair of modern 4x4 scissor arm electric mechs, which I can install over the next couple of weeks. So my question is.... Modern convertible windows drop a little when you open the door and raise a little when you close them. It’s probably all done with the computer ( I have no clue) How can I “manually switch” this operation. ? I thought maybe off the door release switch . Pull handle to open, trips window switch, lowers window a bit. Close door, trips door courtesy light, raises window. But they just need to be a momentary switch. Like .... only for a second.... no more. This is the bit that stumps me. Anyone done this?
Trouble with a timed switch is that if the window mechanism gets sticky (i.e, the window retraction slows down), The window may not clear the edge of the top. Maybe some sort of limit switch (i.e. micro switch to detect the extremes of travel). Apply the 'DOWN" power and the limit switch disconnects the "DOWN" power when the window mechanism has retracted the required distance. This should give you an exact retraction distance - And repeatable over time. Russ
How about a 2 position switch, light pull operates the 1st step. Heavy pull opens completely. The modern stuff is all controlled by the body control module. If you know of someone who can help you, the raspberry pi computer is small and inexpensive. They run on 12volts. It would be possible to program one to run relays to do what you need. There's an extensive array of accessories for them.
There may be some useful ideas here: https://www.jalopyjournal.com/forum/threads/timed-relay.955101/#post-10747727
As TTT suggested, it will require some logic involving limit switches or proxy switches and relays. Do not try to do it with timers or you'll regret it the day it sticks or slows down...and it will.
I remember the 67 and 68 Lincoln convertibles did this on the rear doors. It seems like it was a micro switch on the latch linkage. I'm not sure how they did the timer. Back then they probably used another micro switch to limit the travel. I don't think I have a manual, but I'll take a look.
I found a 64 manual and it appears that it also had the window lower feature on the rear convertible doors. I can post a schematic, but it is for window motors with two field coils. Each motor has a up coil and a down coil. There is a combination window up and window down limit switch. There is also combination door open, door closed switch. It is a pretty complicated circuit, but typical Ford circuitry of the 60's. Not quite as complicated as the convertible top circuitry, but close.
Thanks guys and jaracer, yes you reminded me .... the 57 58 Eldo Brougham had that feature too. I’ll also have a look at the power trunk micro limit switch on my 57 Biarritz for ideas.
Gen 5 Camaros have this feature as well, based off the door handle. Although a little scarce in your neck of the woods maybe a junkyard trip could get some results.
Late Mustangs do the same thing. I believe this is a stand-alone module, but you may need the matching door latch in order to get the open/close signal for the 'clearance' operation. Look for vehicles with frameless window gl***, that seems to be the only applications.
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