buymenow00,
To remote the seat trunk, I would begin by removing the trunk release cable from the keylock linkage.
Make a mounting plate in which a 12volt solenoid would mount. The solenoid would pull a leveraged pivot arm so that the short cable travel requirement would have plenty of torque to make for trouble free releases in all weather. The solenoid plunger would attach to the pivot arm through a spring pin or nicely done rivet through a 'C' channel on the top of the plunger. This arrangement gives the plunger top some angled movement as the pivot arm swings around to pull the cable on the other side of this miniature fulcrum.
The solenoid actuated cable would pull alot of current through the electrical system, so I would make its own bus from the battery output leads or another common bus with its own fuse on the plus side. I don't recommend using chassis ground for the solenoid actuator, as ground loops (with age) could effect the ECM and CVT and all the other black boxes that run a Burgman.
I would put a
[email protected] 100volt electrolytic capacitor across the solenoid leads so that the surge current would be localized near the solenoid and not the Burgman's module busses. A .1uf disc at the 12volt source will help to keep commutation noise away from the other busses too.
To signal the actuator, quite a few creative devices including wireless keychains would give the system a Cool Factor but a hidden button mounted under somewhere will save design time.
The pulse width (of 12volts) that pulls the solenoid should be predetermined in order to keep the solenoid cool and the electrical system always charged. Having the capacitors always charged for two good throws of the latch will help if the battery dies and we want to get our stuff out below. Another idea would be to have the pivot actuator accessible in emergencies for manual releases with a hand movement on the pivot.
Mounting a sealed switch at the key lock assembly would give low force seat openings that can work along side the wireless receiver too.
Programming a chip to open the seat only if 2 second holds of the key lock in the Open position would be more theft resistant.
Both the 400 and 650 have quirks with the seat rear latch assembly that gives partial closings and false openings. We have all had to push down on the back of the seat to set the latch so it would then open through the key lock, especially if stowed items always push up on the underside of the seat.
Perhaps a second switch that tells us if the latch is really set would help because a set latch is also more anti-theft.
A circuit that monitors the button or wireless receiver could do both the 'valid' decoding of input plus supply the 12volt pulse drive for the solenoid too.
I can program the chip and make the coil drive output if someone else wants to do the mechanical end.
Does anyone have a machine shop?
