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Thread: eyeR Interceptor: Automated Engine Start How-to

  1. #1
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    eyeR Interceptor: Automated Engine Start How-to

    UPDATED 3-MAR-10

    With the eyeR it is possible to make it start your car automatically. All you do is insert key and turn it to the IGN position, then you simply tap the engine start button and the eyeR will crank and monitor your car status automatically.

    There is a special security input that needs to be active in order for the eyeR to start your car. This has been added for more security/safety (Can be used as the neutral position or park position input)

    Later I will add fully automated engine start, that will make the eyeR cycle through the IGN key sequence and automatically start your car. There is no need to re-wire you car again when this feature is ready as the diagram below will have all the correct signals and outputs already connected to the eyeR.

    HOW Does It WORK!!
    After momentarily pressing the "Engine Start" button (providing the security pin is enabled) the eyeR will attempt to crank the car while simultaneously monitoring the RPM input. This monitoring will tell the eyeR the exact moment when the car has started so the eyeR will know when to stop cranking. If the first engine start fails, the eyeR will try a couple more times.

    To turn the car off you can do one of the following:
    • Turn the key to the off posistion
    • Momentarily pressing the "Engine Start" button again
    • Pressing a designated button on the eyeR remote
    • Sending the "Car Off" command to the eyeR via the PC



    Wiring Diagram
    Name:  ES schematic.jpg
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Size:  22.5 KB


    As you can see all that is needed is 3 relays to have full engine start control. Actually for just basic engine start only 1 relay is required, but i have added the 2 extra for fully automated engine start/turbo timer control.

    If you having trouble understanding how the eyeR intercepts the signals have a look at the diagram below:
    Name:  Intercept how-to.jpg
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Size:  20.6 KB

    You will notice that normally your ACC line is a straight through connection, but cutting the wire and inserting the eyeR/relay combo will give you an intercepted connection. The signal will still function as normal but now it can be monitored and intercepted.


    Ok, now that the wiring is done you will need to enable the feature in the configuration utility:
    Name:  Engine start soft.jpg
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Size:  50.8 KB

    So, its not that difficult.. You simply enable the checkbox and specify the number of cylinders in your car. This will make the eyeR correctly calculate your RPM.

    You can also trigger an output when the RPM is in a specific range, though this feature hasn't been added yet. Useful for a shift light trigger or an intercooler waterspray controller etc.

    That's about it, as usual this feature will work with/without a PC.


    Related eyeR stuff: HERE

  2. #2
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    i sincerely hope you have some time of checks you perform via the hardware before pressing the start engine button turns the engine off. Here in the US there's a pretty big debate going on with these newer cars that have push to start and its centered around the use of the engine start button while the vehicle is running.
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  3. #3
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    Quote Originally Posted by Sonicxtacy02 View Post
    i sincerely hope you have some time of checks you perform via the hardware before pressing the start engine button turns the engine off. Here in the US there's a pretty big debate going on with these newer cars that have push to start and its centered around the use of the engine start button while the vehicle is running.
    I understand and appreciate your concern. I have been working on this system for a long time now and have done alot of research on it. I have had this system on my car and 4 other cars working for the past 3 months with no major issues at present. The key was determining when the car has succesfully started so the eyeR will stop cranking. I have to say that the tacho/PRM monitor input was the most time consuming to get working correctly as a very high sample rate is required. Generally, detecting a low frequency signal 5 times per second is actually very difficult.

    To answer you question, yes the eyeR does ample checks in determining the car is on before it turns it off. Though can't see why this would be a major issue.

    Do you have a link to an article/website that elaborates on this "debabe" as it sounds very interesting and I would like some more detailed information on this topic.

    -dave

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