24VDC/30A Motor Controller

Discussion in 'The Projects Forum' started by AndersonA, Dec 28, 2015.

  1. AndersonA

    Thread Starter New Member

    Dec 28, 2015
    I am working in a Capstone Design project group at Wright State University. We have taken on the responsibility of building up an electric road vehicle. We are currently using a 24VDC battery and have been provided a DC brushed motor rated for 30A. Since all of the students in this group are Mechanical Engineering students, we don't have a wide knowledge base regarding circuitry and motor controllers.

    Unfortunately, we cannot just buy a motor controller, as per competition rules.
    We need to build a circuit on our own, but have no idea what schematics will work effectively.
    If anyone has any schematics they have used/designed, we'd greatly appreciate any help that we can get.

    Thank you for your time. If I have excluded any information that is necessary for this post, please let me know.

    Note: We would prefer to use a PWM system to increase our efficiency. However, anything that would work is better than what we currently have.

    Thanks again!
  2. Dodgydave

    AAC Fanatic!

    Jun 22, 2012
    Last edited: Dec 28, 2015
  3. MaxHeadRoom


    Jul 18, 2013
    If you want electronic reversing then you will need a full wave PWM bridge.
    Otherwise you would need to do it with a relay etc.
    There are quite a few PWM DC motor controllers if using Google.
  4. AndersonA

    Thread Starter New Member

    Dec 28, 2015
    I'll check into those things. I appreciate your help!
  5. MikeML

    AAC Fanatic!

    Oct 2, 2009
    Dont overlook that the PWM source can be a $4 Arduino. You can write code for it that does graceful acceleration, de-acceleration, coasting, regen braking, etc....