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hood safety latch lock

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=113609
Printed Date: April 25, 2024 at 5:24 PM


Topic: hood safety latch lock

Posted By: number2
Subject: hood safety latch lock
Date Posted: May 05, 2009 at 10:08 AM

Has anyone rigged up a simple solenoid that will lock the hood safety latch in place when the alarm is triggered?



Replies:

Posted By: Big Dog
Date Posted: May 05, 2009 at 3:25 PM
I suggest a mechanical hood lock. Directed Electronics had one years ago but still might be available 565T or 566T or 567T. It had a T handle inside the vehicle with a key lock. Electronic hood lock can fail or will not unlatch with a dead battery (and guess where the battery is).

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Prepare your future. It wasn't the lack of stones that killed the stone age.




Posted By: number2
Date Posted: May 05, 2009 at 3:40 PM
I was thinking of something a bit more simple. Just a solenoid that pushes a rod through a hole or just against the latch and retracts with with no power.




Posted By: Big Dog
Date Posted: May 05, 2009 at 3:53 PM

number2 wrote:

a solenoid that pushes a rod through a hole or just against the latch and retracts with with no power.

A solenoid without power might be a challenge to find.



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Prepare your future. It wasn't the lack of stones that killed the stone age.




Posted By: number2
Date Posted: May 05, 2009 at 4:15 PM
Big Dog wrote:

A solenoid without power might be a challenge to find.




push-type, spring-return solenoid.




Posted By: sti05
Date Posted: May 05, 2009 at 4:24 PM
That being the case, it would be drawing power the whole time your system was armed. You would find yourself with a dead battery all the time.




Posted By: number2
Date Posted: May 05, 2009 at 4:39 PM
Is there a way to have it activated only when the alarm is triggered??




Posted By: sti05
Date Posted: May 05, 2009 at 5:43 PM
Well, what if the alarm was triggered because the hood opened? Honestly if someone really wants to get under your hood, they could easily cut the wires to such a device. Whats under your hood your so worried about anyway?




Posted By: number2
Date Posted: May 05, 2009 at 9:37 PM

sti05] wrote:

Whats under your hood your so worried about anyway?
Really?

What good is an alarm if someone can disable the siren in a few short seconds.

I was thinking this could be an altertantive to a backup battery. Plus it could throw someone off their corse of action if they end up frustrated because they can't get the safety latch to move.





Posted By: sti05
Date Posted: May 06, 2009 at 1:38 AM
I guess, just it seems more trouble than it's worth. By all means try it. Id like to see how you make it work.




Posted By: KPierson
Date Posted: May 06, 2009 at 7:22 AM

You should be able to run the solenoid off the siren output.  It may be beneficial to include a short time delay (you will need a relay to drive the solenoid anyway).  That way it won't energize when the system chirps. 



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Kevin Pierson





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