Push Button Start with Passive Device Key wanted

[sacarguy]

ok just talking out loud here

from what i see here if you already have the ignition on then press and hold for two seconds for the starter to fire the latched circuit will deenergize and you lose ignition when u release the button as the only weekenss to that design.

ok would it be ok include another timed relay to that if the button is held long enough to engage the starter it relatches the latched circuit

ie if you push the button once it turns on or off if its less then 2 seconds but if its pushed for more then two seconds at any time it will also reenergize the starter circuit and the latching circuit



that way if the ignition is already on from the first short pulse and you press the starter and hold it more then two seconds the second timed relay relatches the latched circuit as well and you dont just turn the latched circuit off when you lift the button and the only way the latched circuit turns off is a short less then two seconds pulse of the button