Mounting control box and controller on motor - DIY Electric Car Forums
Go Back  

DIY Electric Car Forums > EV Conversions and Builds > Technical Discussion

Register Blogs FAQ Members List Social Groups Calendar Search Today's Posts Mark Forums Read

Thread Tools Display Modes
Old 03-30-2012, 09:13 PM
mk4gti mk4gti is offline
Senior Member
Join Date: May 2011
Posts: 227
mk4gti is on a distinguished road
Default Mounting control box and controller on motor

Newbie here.... Not much space under the hood (ehh, "bonnet") to mount the control box and controller. However, there is tons of space directly above the motor for the control box and controller.

Question: Is there any problems mounting components on the moving parts such as the motor and tranny?

I plan on leaving some slack in the wiring for the forward/backward motion of the motor.
Reply With Quote
Sponsored Links
Old 04-04-2012, 03:25 AM
dtbaker's Avatar
dtbaker dtbaker is offline
Senior Member
Join Date: Jan 2008
Location: santa fe, nm
Posts: 4,001
dtbaker is on a distinguished road
Default Re: Mounting control box and controller on motor

I would not mount to the motor... too much heat and vibration for electronics.

You can probably find un-used weld-nut locations to construct a shelf spanning the engine bay. I'd suggest using non-conductive plywood, or plastic sheeting.

the last picture shows how much room I had left over after switching from lead to lithium... I may re-do my rack now that I don't need heavy steel rails to support the weight of two lead batteries!
Attached Images
File Type: jpg 081019_mrack02.installed.jpg (90.5 KB, 6 views)
File Type: jpg 090223_compbox02.wmollies.jpg (51.4 KB, 4 views)
File Type: jpg 110313_front01.jpg (79.2 KB, 6 views)
Dan - '97 Suzuki Swift - '94 Mazda MX5 Miata
Reply With Quote
Old 04-04-2012, 08:21 AM
tomofreno tomofreno is online now
Senior Member
Join Date: Mar 2009
Posts: 2,218
tomofreno will become famous soon enough
Default Re: Mounting control box and controller on motor

I mounted a 1/4 inch thick aluminum shelf off the two bolts at the top of the adapter/transmission and a bracket bolted to the end of my motor. The shelf is around 4 inches above the motor. The charger with energy meter on top, relay box with battery heater controller on top, and DC/DC converter are mounted on this shelf. No issues over the last 2 1/2 years. As you said, leave slack for movement. The motor does of course radiate some heat, but it remains below about 65 C typically in summer, so not a lot. The controller, on the left is mounted off the motor end bracket, suspended over the passenger side "fender". There is a finned heat sink bolted to it underneath.
Attached Images
File Type: jpg SDC10142.JPG (75.4 KB, 7 views)

Last edited by tomofreno; 04-04-2012 at 08:24 AM.
Reply With Quote

Share or Bookmark this

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Support DIY Electric Car

All times are GMT -6. The time now is 09:39 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.

Ad Management by RedTyger