Free vehicle immobilizer design

[A Friend]

Free vehicle immobilizer design

Get a load of this guy!

http://home.clear.net.nz/pages/dandavies/index.htm

 

[Neil]

Free vehicle immobilizer design
Get a load of this guy!
http://home.clear.net.nz/pages/dandavies/index.htm

Another concept I've seen is to include a small window comparator circuit
that if 'out-of'window' will partially add a series resistor to the ignition
coil. So if a thief tries to start the vehicle, it appears to be trying to
start, but won't actually fire. So hopefully the thief assumes it's a
rubbish vehicle and moves on. The resistor (23K) that brought the
comparator in-window was mounted inside a 5-pin audio din plug - the socket
looks pretty innocuous, but who carries a 23K +/- 2% around?
No doubt one of many ideas ...
hth
Neil

 

[AC/DCdude17]

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Another concept I've seen is to include a small window comparator circuit
that if 'out-of'window' will partially add a series resistor to the ignition
coil. So if a thief tries to start the vehicle, it appears to be trying to
start, but won't actually fire. So hopefully the thief assumes it's a
rubbish vehicle and moves on. The resistor (23K) that brought the
comparator in-window was mounted inside a 5-pin audio din plug - the socket
looks pretty innocuous, but who carries a 23K +/- 2% around?
No doubt one of many ideas ...
hth
Neil

If you're going to use a five pin DIN, you might as well use multiple resistors
so that it will actually be really close to an electronic key.

Ofcourse, nothing will deter theft by flatbed.

 

[Titus Pomponius Atticus]

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If you're going to use a five pin DIN, you might as well use multiple resistors
so that it will actually be really close to an electronic key.

Ofcourse, nothing will deter theft by flatbed.

Hmm.. steel and concrete 'hitching posts' for cars. Big chain and lock. Might
work.

 

[AC/DCdude17]

Hmm.. steel and concrete 'hitching posts' for cars. Big chain and lock. Might
work.

If you lose the key, you're screwed. It will also be a municipal parking
enforcement division's dream. They can add another lock in addition to giving you a
ticket for parking violation and tell you that you're not getting your car back
until all the fines are cleared