|
Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
|
Thread Tools | Display Modes |
03-17-2018, 09:14 AM | #41 |
Not Yet Wild
Join Date: Mar 2018
Location: West Coast Florida
Posts: 21
|
Re: EZGO 36V electric cart slow uphill
My manual shows 4 brushes. Could two be forward and two reverse?
|
Today | |
Sponsored Links
__________________
This advertising will not be shown in this way to registered members. Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum |
|
03-17-2018, 10:39 AM | #42 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
|
Re: EZGO 36V electric cart slow uphill
All four brushes are used in both forward and reverse. The are four field windings (two pairs) forming two stationary magnetic fields that are at 90° from each other. The four brushes connect to two sets of armature windings forming two rotating magnetic fields that are also at 90° from each other. In other words, there are effectively two motors turning the same output shaft.
The difference in forward and reverse is the direction the current travels in the field windings relative to the direction it travels in the armature windings. For example: When A1 & S1 are connected to B+ while A2 & S2 are connected to B-, the armature turns CW and when A1 & S2 are connected to B+ while A2 & S1 are connected to B-, the armature turns CCW. All the High-Current cables used for forward as also used for reverse. All 13 cables are used for either direction. Half-speed reverse not withstanding (separate and unrelated function), the only difference Forward and reverse is which cables are connected together by the contacts on the cam in the F/R switch. The fact that you measure 30V between M- and B+ in forward and 21V in reverse, can only means the is a bad connection between the movable contacts on the cam in the F/R switch and the stationary contacts the cables are connected to. Since it is a new F/R switch assembly, I suspect the problem is mechanical. Is the cam fully rotating to the mechanical stops in both forward and reverse? ----------------- This is a separate issue that I see. You are only getting 30V between M- and B+. When the pedal is on the floor, the voltage between M- and B+ ought to be equal to the battery pack voltage at the time. More correctly, with the pedal on the floor the voltage between M- and B+ terminals on the controller ought to equal the voltage between the B- and B+ terminal on the controller. Unless the battery pack voltage is actually dropping to 30V when the pedal is on the floor, you have some bad High-Current cables, connections or contacts. Last edited by JohnnieB; 03-17-2018 at 10:46 AM.. Reason: added stuff |
03-17-2018, 10:46 AM | #43 | |
Not Yet Wild
Join Date: Mar 2018
Location: West Coast Florida
Posts: 21
|
Re: EZGO 36V electric cart slow uphill
Quote:
The connections at the F/R switch are now new and clean. I guess I'll disconnect, clean, and replace the other ends and see what happens. |
|
03-17-2018, 11:09 AM | #44 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
|
Re: EZGO 36V electric cart slow uphill
Quote:
Measure from A to D while going forward and then measure for B to C while going forward. Next, measure from A to B while going in reverse and then measure for C to D while going in reverse. 2. 35V into the controller, but only 30V out means the throttle isn't telling the controller to go to 100% output (ITS circuit issues), or the controller is bad. 4. |
|
Tags |
36v, ezgo, uphill |
|
|
Similar Threads | ||||
Thread | Forum | |||
2000 Yamaha electric 36 volt slow uphill | Electric Yamaha | |||
G8e SLOW on the uphill | Electric Yamaha | |||
48 volt cart slow going uphill | Electric Club Car | |||
another slow uphill q. | Electric Club Car | |||
slow uphill | Electric Club Car |