tag:blogger.com,1999:blog-9216239883672830852.post5272132475350946622..comments2022-11-07T02:42:52.750-08:00Comments on Project: Electric Booger: The Motor and ControllerJames Vothhttp://www.blogger.com/profile/09723505975736049507noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-9216239883672830852.post-69329034270655395972014-04-30T06:52:08.517-07:002014-04-30T06:52:08.517-07:00What I ended up doing is powering the field throug...What I ended up doing is powering the field through two relays: one switching it on and off by the idle microswitch in the pot box, and the other switching between 24 and 48V with a toggle switch on the gear shift. This seemed to give the best performance. 48V for more torque starting off and 24V at higher speed. However, later I controlled it with a separate motor controller, detailed HERE:<br />http://electric-booger.blogspot.ca/2012/12/the-pwm-field-controller-is-installed.html<br /><br />This setup worked much better, but the motor was still undersized for the car, so I ended up switching to a larger series wound motor, detailed HERE:<br />http://electric-booger.blogspot.ca/2013/08/motor-direction-reversal-and-brush.htmlJames Vothhttps://www.blogger.com/profile/09723505975736049507noreply@blogger.comtag:blogger.com,1999:blog-9216239883672830852.post-89334133172942220662014-04-19T12:30:16.131-07:002014-04-19T12:30:16.131-07:00I have exactly the same issue so will be intereste...I have exactly the same issue so will be interested to see what you find.<br />One thing is that you really want to only turn on the field when you want to drive, because the rests at traffic lights or whatever will give the field windings some time to cool down.<br />If you don't mind I will link your post on a UK site (ev.forumchitchat.com) where a couple of people have reported blown sepex controllers and will be interested in this.iampyhttp://www.ev.forumchitchat.comnoreply@blogger.com