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push to start button using remote start


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chrisnelsonmn 
Member - Posts: 15
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Joined: December 07, 2007
Location: Minnesota, United States
Posted: December 17, 2007 at 1:28 PM / IP Logged  
Ok, some updates, first the nasty pictures:
push to start button using remote start - Page 2 -- posted image.
push to start button using remote start - Page 2 -- posted image.
push to start button using remote start - Page 2 -- posted image.
The relays from left to right in the first picture are labeled:
push button kill - On - Off - Ign - Ign - Acc - Acc
I am using two buttons to control the system. The "ON" button simply triggers the negative input on the remote start to initiate the startup sequence. The "OFF" button triggers a relay that cuts power to the latching relays which turns off the car.
STEERING WHEEL LOCK:
I purchased a steering wheel lock plate removal tool for $20 at the local parts store and this week sometime I will be removing the lock mechanism.
Also, I installed new power door lock solenoids so that when the car is locked, the push button is disabled.
chrisnelsonmn 
Member - Posts: 15
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Joined: December 07, 2007
Location: Minnesota, United States
Posted: December 17, 2007 at 1:44 PM / IP Logged  
PLEASE KEEP IN MIND! :)
This is all just a "rough draft" of this project. I am using my '92 Civic as a test bed, and when I get all of the kinks worked out and the system operating as I want it to I will be installing this system on a brand new Compustar P2WSSR and a factory Honda S2000 start button.
Here's the car it is going into when I get the bugs worked out:
push to start button using remote start - Page 2 -- posted image.
1985 Pontiac Fiero with 45,000 original miles. This car has a 3.4L V6 installed from a '95 Camaro, and it is a lot of fun to drive! :) Hopefully this modification will make it even more fun to drive!
KPierson 
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Joined: April 14, 2005
Location: Ohio, United States
Posted: December 17, 2007 at 2:46 PM / IP Logged  

Cool project, keep us updated.

There are a couple ways to dictate if the pushbutton turns on or off the system.  One way would be using the brake (or clutch) switch.  if the brake is pushed in it will start, if it isn't pushed in, it will stop.

Use a frequency switch to detect when the fuel injectors are firing.  If the fuel injectors are firing then the pushbutton becomes an 'off' button, otherwise it is an 'on' button.

Use the fuel pump control circuit as a reference.  You can determine if the motor is running if the fuel pump is running.  However, most EFI systems prime the pump once the ignition is turned on, so you may have to work out some details.

The best bet would be a frequency switch that would detect when the car is running regardless of other conditions.  This is what I used on my pushbutton start system in my G35!

Kevin Pierson
chrisnelsonmn 
Member - Posts: 15
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Joined: December 07, 2007
Location: Minnesota, United States
Posted: December 17, 2007 at 4:27 PM / IP Logged  
Holy crap, you're a genius!
I looked it up and for about $30 I can get this:
push to start button using remote start - Page 2 -- posted image.
Like you said, I can have the normally closed contacts feed the start input on the remote start, and the normally open contacts (activated by a tachometer signal) trigger the shut down circuit.
BRILLIANT!
... wrote:
Frequency Switch
Ref: High Performance Electronic Projects for Cars - Silicon Chip Publications.
This is a great module which can be adapted to suit a range of different applications. It uses a standard tacho, road speed, or many other pulse outputs to switch a relay. The switch frequency can be set to trip when it is rising or falling, and it features adjustable hysteresis (the difference between trigger on/off frequency). You could configure it to trigger water spray cooling on deceleration, shift light activation, adjustable aerodynamics based on speed, intake manifold switching and much more. Kit supplied with PCB, and all electronic components.
chrisnelsonmn 
Member - Posts: 15
Member spacespace
Joined: December 07, 2007
Location: Minnesota, United States
Posted: December 17, 2007 at 5:25 PM / IP Logged  
push to start button using remote start - Page 2 -- posted image.
Maybe this would be better from Summit:
Basically a relay triggered by RPM level.
http://store.summitracing.com/partdetail.asp?part=SUM-830449
This way, the normally closed circuit will direct the output of the push to start button to the remote start, and then after the engine starts, the rpm switch is triggered and then the normally open post on the relay then connects directly to the shut down relay.
VOILA! push to start button using remote start - Page 2 -- posted image.
chrisnelsonmn 
Member - Posts: 15
Member spacespace
Joined: December 07, 2007
Location: Minnesota, United States
Posted: December 17, 2007 at 5:27 PM / IP Logged  
push to start button using remote start - Page 2 -- posted image.
I'm beginning to think that I may need this type of switch in a momentary design
That way after I start the car, I can cover the switch to prevent accidental ignition shut down. push to start button using remote start - Page 2 -- posted image.
chrisnelsonmn 
Member - Posts: 15
Member spacespace
Joined: December 07, 2007
Location: Minnesota, United States
Posted: December 17, 2007 at 8:24 PM / IP Logged  
this is the solution!
think geek rfid kit
push to start button using remote start - Page 2 -- posted image.
chrisnelsonmn 
Member - Posts: 15
Member spacespace
Joined: December 07, 2007
Location: Minnesota, United States
Posted: December 17, 2007 at 9:32 PM / IP Logged  
OK, I got it all figured out!!! I did the deed tonight and took pics along the way:
1. Because I was dealing with the air bag system, I unhooked the battery and let the car sit for 20 minutes just in case. I'm not very knowledgeable when it comes to factory air bag systems.
push to start button using remote start - Page 2 -- posted image.
2. First step was easy, just gotta undo a couple screws and get that airbag out of the way.
push to start button using remote start - Page 2 -- posted image.
3. Didn't need a steering wheel puller for this one. Just popped right off.
push to start button using remote start - Page 2 -- posted image.
4. Used a marker to make some alignment marks because this part spins really easily. Then just took out the couple screws to get to the next part:
push to start button using remote start - Page 2 -- posted image.
push to start button using remote start - Page 2 -- posted image.
5. The next part (turn signal and wiper stalks) just slid right off as an assembly after unscrewing them:
push to start button using remote start - Page 2 -- posted image.
6. I found that the actual lock on this one is spring loaded under the column, and to get it off I had to undo 2 bolts that had been manufactured to be completely rounded off after installing them to prevent this type of activity. So I lowered the column by unbolting it and went to town with my Easy-Out drill set:
push to start button using remote start - Page 2 -- posted image.
Once I got the holes drilled, they came out very easily.
push to start button using remote start - Page 2 -- posted image.
7. In this picture you can see the actual lock mechanism. It moves up and down when you turn the key on and off:
push to start button using remote start - Page 2 -- posted image.
8. I was originally just going to disable it by putting a piece of metal between the lock and the column. Went with a piece of a pop can folded onto itself:
push to start button using remote start - Page 2 -- posted image.
9. After that I reassembled it and it worked FLAWLESSLY!
push to start button using remote start - Page 2 -- posted image.
10. BUT, I changed my mind and decided I did not want the ignition cylinder in there at all, so I just pulled it out again and reassembled everything with my switches in place:
push to start button using remote start - Page 2 -- posted image.
11. Now I needed somewhere to hide the old ignition cylinder so I disconnected the 2 wire harnesses from it and tucked them up under the dash so noone can find them.
push to start button using remote start - Page 2 -- posted image.
WORKS LIKE A CHARM!!
claudio12401 
Member - Posts: 13
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Joined: October 08, 2005
Location: United States
Posted: December 17, 2007 at 9:44 PM / IP Logged  
That is pretty cool. The lit up toggle switch board would have been sweet looking but it looks like you did an awesome job.
chrisnelsonmn 
Member - Posts: 15
Member spacespace
Joined: December 07, 2007
Location: Minnesota, United States
Posted: December 17, 2007 at 9:47 PM / IP Logged  
Thank you very much! I might simply block off the original ignition cylinder hole all together and install the lit toggle switch in a different location.
You see, if I go with a single push button switch like what the Honda S2000 uses, I'd be worried about possibly bumping it while driving and shutting the car down, or a passenger may think it's funny to do.
but using a covered momentary switch instead would make me feel a lot better!
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