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Electrical Issues: Hatch Lift - Battletech Pod - Tail Gate Lift Motor
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kahlid74:
So I'll post at some point my progress on the Battletech Pod but one of the things I was looking at as I have fun with this project is an automated Hatch.  As I started diving deeper I found Boat hatch lifts but they were in the $200-400 range which I didn't want to spend.  I visited some local junkyards and came across a 2007 Honda Odyssey Touring Power Tail Gate Lift Motor fully intact with all parts and working when removed for $40 bucks.

So now my question comes down to wiring/powering/intelligence required to utilize.  It's got two hook ups.  One that connects directly to the motor and one that looks like it goes to a control engine of some sort.  I'm guessing 12volt (since it's a car part) and maybe 5-10 amps to make the motor work.  So my next question comes down on how to identify the control engine and how to make it actually work.

Anyone have any thoughts?  Any EE's have an idea how to reverse engineer it?
kahlid74:
It looks like one of the harnesses goes to the motor and the other to the electromagnetic clutch.  Any thoughts/help is greatly appreciated.  Here's some pictures:







HaRuMaN:
Hmm.  That's interesting.  I'm guessing you would have to power the clutch to engage it, then power the motor to move the lift.  Not sure why they designed it that way, though.
kahlid74:

--- Quote from: HaRuMaN on January 18, 2013, 02:01:27 pm ---Hmm.  That's interesting.  I'm guessing you would have to power the clutch to engage it, then power the motor to move the lift.  Not sure why they designed it that way, though.

--- End quote ---

I was talking with my car friend and as we talked about it we came to some idea of what we thought maybe it was doing.  The idea being any hindrance observed the clutch reverses the movement.  So if the motor was closing and closes on something it stops and then reverses.

So my big challange would be to identify whether it's just a straight up dumb on/off to the clutch/motor or whether there is some other intelligence going on.
lilshawn:
the clutch locks the motor in it's current position. you must energize the clutch to release the motor.

it's normal operation would be to engage the clutch/motor and open the liftgate or door. once it's finished the motor and clutch disengage and the door is locked open... to close, they reverse to polarity of the motor and engage the clutch...the door closes.

this is designed this way so the door/hatch doesn't slowly close after the power is removed from the motor due to the weight of the door.
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