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Jet car circuit design help Requested

Discussion in 'Electronic Projects Design/Ideas/Reviews' started by go300mph, Aug 30, 2017.

  1. go300mph

    go300mph New Member

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    Hello I drag race jet powered dragsters .
    I have basic knowledge of DC electronics, mainly automotive related and want to build a more complex circuit. I appreciate anyone who is wiling to help.

    Ok I have a 12v electric solenoid = "A" circuit (open/close) I am using a bosch style 5pin relay (SPST) ((actually just am using DPST with one less lead connected))

    I have another separate electric solenoid "B" circuit (right or left) I am using a bosch style 5 pin relay (DPST)


    Operation 1 requires I be able to operate A circuit multiple times while B circuit is in left position
    Operation 2 requires that the very next time I operate the A circuit the B circuit be switched to right simulaintiously.

    I am thinking an ARM toggle switch on the dashboard that once switched then the function of A circuit now becomes A and B
    monkey wrench
    after I ARM then I need to be able to trigger B and if need to trigger A again it then has no effect on B , B need to then stay in the right position


    HELP?!!?
     
  2. flatfootskier

    flatfootskier Member

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    What would be the impact of a failure? That may dictate a specific design using a failsafe approach
     
  3. ci139

    ci139 Active Member

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  4. dave

    Dave New Member

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  5. go300mph

    go300mph New Member

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    if this design fails it wouldn't run so it would fail safe
     
  6. crutschow

    crutschow Well-Known Member Most Helpful Member

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    Sorry but I can't quite follow all the requirements. :confused:

    Could you make a sort of table that shows all the options (switch positions) and what you want to happen in each case.
     
  7. cowboybob

    cowboybob Well-Known Member Most Helpful Member

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    This will require 3 switches: MASTER, ARM and RUN:
    System OFF:
    upload_2017-8-30_19-23-53.png
    MASTER ON:
    upload_2017-8-30_19-26-27.png
    ARM ON:
    upload_2017-8-30_19-27-14.png
    RUN ON:
    upload_2017-8-30_19-28-16.png
    ARM OFF:
    upload_2017-8-30_19-29-33.png
     
    • Like Like x 1
  8. go300mph

    go300mph New Member

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    thanks guys let me absorb this for a bit ,
    I took her out last night but the launch process is complicated and this should help
     
  9. go300mph

    go300mph New Member

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