Location: Uxbridge
Symptom: ECU warning light + main contactor dropped out
I removed the complete ECU after pulling the 162V fuses and disconnecting the 12V battery.
I removed the ECU top cover:-
Computer part
Contactor, charger, 12V aux inverter, field regulator, armature regulator
The armature regulator applies 162V pulses directly to the armature (via stator compoles)
Interestingly above about 15MPH the PWM is at 100% duty. Full battery voltage applied to armature. Speed is controlled by field voltage control.
Main contactor with 12V solenoid
Main contactor with 12V solenoid
An extra cooling fan must be added to avoid 142V charger failure due to overheating / inadequate cooling by water cold plate
Hello Chris
ReplyDeleteYou seem to be finding ALL the faults a Berlingo can get. Are you on your own in this fault-finding mission?
There is a forum created for 500E owners (since expanded to all electric vehicles) at http://www.batteryvehiclesociety.org.uk/forums/index.php
You are very welcome there.
Tim Crumpton (timpootle on the forum, and at gmail.com)
Do the added fan run 24/7?
ReplyDeleteSeams like a good modification that I will do as well. Thanks!
Is it possible to by a motor controller like this anny where now days ?
ReplyDelete