Switch for Piezo Injector

Discussion in 'Electronics Homework Help' started by contiContiCONTI, Oct 11, 2018.

  1. contiContiCONTI

    contiContiCONTI

    Joined:
    Oct 11, 2018
    Messages:
    3
    Likes Received:
    0
    CALLING ALL CIRCUITS JUNKIES!

    Good day all!

    I am a mechanical engineering student and need help with some circuits ideas. My project requires me to model and construct an injector system for a one cylinder motorbike engine. We chose to use a piezo injector which, when a current passes through it, injects compressed air into the cylinder. To make this injection controlled, I require a type of ON/OFF switch that will close for around 10ms (letting current pass to the injector and therefore air into the cylinder), then open for about 60ms.

    The problem is that we have multiple varying parameters (cylinder pressure and engine speed). Therefore, the opening and closing times will need to vary quite drastically from test to test. I need a switch which I can program with a MATLAB code that will stay open and closed for a specific amount of time depending on the coding. Without manual adjustment to the actual switch.

    Please recommend any device or circuit idea that would allow me to do this.

    Thank you!!!!

    Christian.
     
    contiContiCONTI, Oct 11, 2018
    #1
  2. contiContiCONTI

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    Joined:
    Jan 21, 2010
    Messages:
    24,613
    Likes Received:
    2,495
    Location:
    Mid way between Beijing and the Ronne Ice Shelf
    Have you heard of a MOSFET?
     
    (*steve*), Oct 11, 2018
    #2
  3. contiContiCONTI

    contiContiCONTI

    Joined:
    Oct 11, 2018
    Messages:
    3
    Likes Received:
    0
    No, I know nothing of electronics and circuits unfortunately hahah is it the type of device I should consider? How does it work?
     
    contiContiCONTI, Oct 11, 2018
    #3
  4. contiContiCONTI

    WHONOES

    Joined:
    May 20, 2017
    Messages:
    563
    Likes Received:
    111
    Location:
    Oxfordshire
    How much current is required by you Piezo injector.
    A Mosfet is the right way to go.
    May I suggest you have a look at the link below for an understanding of what a Mosfet is.

    https://en.wikipedia.org/wiki/MOSFET
     
    WHONOES, Oct 11, 2018
    #4
  5. contiContiCONTI

    contiContiCONTI

    Joined:
    Oct 11, 2018
    Messages:
    3
    Likes Received:
    0
    Thank you! Do you know how I could hook this up to MATLAB and set it on a timer? Maybe using an Arduino board?
     
    contiContiCONTI, Oct 11, 2018
    #5
Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Similar Threads
There are no similar threads yet.
Loading...