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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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09-27-2018, 07:00 PM | #1 |
Gone Wild
Join Date: Sep 2016
Location: Northern California
Posts: 1,300
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Alltrax data file for review
Installed the new motor from EMP today and its awesome. That's the good news. The bad news is my intermittent power problem is still there. The old motor wasn't going to last, so not crying over any spilled milk, as far as getting the new one, just hate spending $ before I have to.
I was hoping someone (JohnnieB are the lights in your genius cone going off yet?) could take a look at the monitor file I made on a run today. Hopefully I did it correctly. I did a couple of runs and it doesn't look like it made a separate file even though I stopped and started the monitoring each time. However, each run did have a power dip, so Im hoping the info I need is there. Re-checked all high current cables and everything is tight and nothing is hot. I have not pulled the mat up yet or done any checking of the throttle signal. I can look up how to do that again, but Im thinking since the problem is intermittent, it'll be easier to see in the file. Im not even sure how I'd go about testing the throttle signal while driving. Thanks |
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09-28-2018, 05:40 PM | #2 |
Gone Wild
Join Date: Sep 2016
Location: Northern California
Posts: 1,300
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Re: Alltrax data file for review
Does anyone know how to read these files? I’ve looked through it, but there’s a lot of information there, and I don’t really know what I’m looking for. I also emailed it to Alltrax, but haven’t heard anything back from them.
Does anyone have any ideas of things for me to test? I’ve checked every cable/wire and don’t find anything amiss. |
09-28-2018, 06:29 PM | #3 |
Gone Mad
Join Date: Oct 2009
Location: Buford, GA
Posts: 8,988
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Re: Alltrax data file for review
Not a real answer, but...
Open it in Excel or Open Office. Highlight row 6. View - Freeze Panes. Now you can scroll through the data, and still know what you are looking at. I'd say Columns F - J are the most pertinent. |
09-28-2018, 06:36 PM | #4 | |
Gone Wild
Join Date: Sep 2016
Location: Northern California
Posts: 1,300
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Re: Alltrax data file for review
Quote:
Do you have any suggestions about the problem? Any ideas about how to test the its while enroute? I just thought of the fact that I don’t hear the solenoid or the contactor drop out/back in when the problem happens. When the problem does happen, it’s very brief. |
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09-28-2018, 06:47 PM | #5 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Alltrax data file for review
The data log is in 5 segments totaling about 13 minutes with blanks in time separating the segments. That's the way they often turn out.
I've got them loaded in a spreadsheet, but it's too late to do much number crunching tonight. I'll be back tomorrow with what I find, unless something jumps out at me while I'm setting the spreadsheet up for Min/Avg/Max and sorting by various columns. |
09-28-2018, 06:52 PM | #6 | |
Gone Wild
Join Date: Sep 2016
Location: Northern California
Posts: 1,300
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Re: Alltrax data file for review
Quote:
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09-29-2018, 12:46 PM | #7 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Alltrax data file for review
I've been tied up with some other things this AM, but finally got to take a quick look.
Looks like a few global shutdowns, some throttle errors and some overcurrent errors. Also looks like there is a FN-K1 remote connected and is being adjusted during the runs. The errors that don't make sense are: 5:01:18PM - Simultaneous Low Throttle High Over range and Low Throttle Low Over range. 5:02:27PM - Simultaneous Low Throttle High Over range and Low Throttle Low Over range. The throttle voltage is supposed to be High throttle (pedal up) = 10V and the Low throttle (Pedal on floor) = 6V. I'm not 100% sure if High Throttle means pedal up or pedal down, but it has to be one or the other and how can the voltage be above and below the allowed tolerance at the same time?????? Hopefully Alltrax can decode what that means. --------------- Have you replaced the inline connector in the cable coming out of the Pedal box with butt-splices or solder joints? Also, can you record another data log and leave the FN-K1 knob at same setting and when cart misbehaves, stop and put cart in reverse for a few seconds and note time on the laptop (that is the time track recorded in data log) so the failure can be positively identified on the log. |
09-29-2018, 02:14 PM | #8 |
Gone Wild
Join Date: Sep 2016
Location: Northern California
Posts: 1,300
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Re: Alltrax data file for review
Dang Johnnie, if some of it’s not making sense to you....
I removed the molex and soldered those wires together when I rebuilt the cart. I’ve checked all of the wires/cables in the cart visually, but maybe I better take a closer look at that connection. I do have the fn dial. I turn that dial down to about halfway when I’m pulling into the driveway. I leave it there until I back the cart out of the garage and onto the street. The only time I would have moved it during that run would have been when I was just starting down the street. When I Installed it, I removed the dial from the housing it came in and installed just the dial in the dash. I checked the connections for that at the controller and all looked fine. I guess I better check the connection at the dial itself. I’ll go do another run and do as you suggest. Thanks again for your time. |
09-29-2018, 02:41 PM | #9 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Alltrax data file for review
I think I got the FN dial figured out now. The User-1 percent reads -1% until keyswitch is on, but I'm pretty sure you didn't keep turning the key on and off, so I suspect the column labeled keyswitch is actually monitoring the pedal switch.
I've got the data logs for the XCT controller pretty well figured out, but the data log from a SR controller is different, so it is still a bit of a learning and reverse engineering project for me. ------------- The throttle pointer is dropping to zero while the throttle position has a value, so that is likely to be when the cart hesitates. Those instances coincide with a global shutdown errors, and those events appear to be triggered by the low throttle errors previously mentioned and Over Current errors, but I dodn't see any over current. But I don't know where the controller is looking for overcurrent and the manuals don't explain over current errors like they do other errors, so I've hit a brick wall. Since they wrote the program, Alltrax ought to be able to decode the meanings of the various errors. Of course, intermittent problems are a bear to find, especially when they don't last very long. |
09-29-2018, 03:18 PM | #10 |
Gone Wild
Join Date: Sep 2016
Location: Northern California
Posts: 1,300
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Re: Alltrax data file for review
Did you still want me to log another file, or should we just wait to hear back from alltrax?
If I’m understanding you correctly, there’s a possibility that it is a throttle signal error? I’ll check that connection again. Is there value in me pulling up the mat and checking the ITS? I feel like I’ve read that the mechanical portion of that thing usually works, or doesn’t. Is that correct? Have we eliminated the fn switch as a potential cause? |
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