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Project 2 - E30 One-Touch Power Window Control

Discussion in 'Do-It-Yourself Garage' started by berserkdroid, Jun 22, 2010.

  1. berserkdroid

    berserkdroid Founding Member

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    As I go through toll booths quite often, I thought of how neat it would be to have a one-touch function for the power window...The principle is this:power window switch pressed sending a signal to a controller which activates a relay. The relay will send power to the window motor and is kept activated unless one of the two following events occur:1. It is switched off manually (ie by pressing the switch again) OR2. A load-sensing circuit kicks in and disengages the relay. (this is actually how it will cut out, and acts as a safety to prevent the motor burning out, also in cases where policemen habitually stick their heads in the window asking "pergi mana!" it means they won't kena cekikkk... :D)Anyone else done this sort of thing before? Or would it be easier to transfer the system from another car?BTW I think this relay will do the job quite nicely, since its 12v:[​IMG]
     

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