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[motorrad36]

The power interruption occurred last Tuesday, about 8 miles after starting my ride that day.  After parking the bike for a while, I then rode back home 10 miles. Upon returning home I washed the bike and rode it around for a couple of miles to dry it off, parked it and plugged in the charger.  The next time I turned on the bike was yesterday when I downloaded the logs.

Not sure about the date, but in this section the bike thinks you went from riding, within 2 seconds put the kickstand down, and within 26 seconds later you're back to riding? Doug might have been right on here.


07136     01/27/2020 09:31:34   Riding                     PackTemp: h 15C, l 15C, PackSOC: 99%, Vpack: 115.35V, MotAmps:  58, BattAmps:   3, Mods: 11, MotTemp:  20C, CtrlTemp:  14C, AmbTemp:  11C, MotRPM: 128, Odo:10495km
 07137     01/27/2020 09:32:35   Riding                     PackTemp: h 15C, l 15C, PackSOC: 99%, Vpack:115.853V, MotAmps: -53, BattAmps: -14, Mods: 11, MotTemp:  20C, CtrlTemp:  16C, AmbTemp:   9C, MotRPM:1221, Odo:10495km
 07138     01/27/2020 09:33:35   Riding                     PackTemp: h 15C, l 15C, PackSOC: 99%, Vpack:115.292V, MotAmps:   0, BattAmps:   1, Mods: 11, MotTemp:  21C, CtrlTemp:  17C, AmbTemp:   9C, MotRPM: 102, Odo:10496km
 07139     01/27/2020 09:33:37   Throttle Disabled:         Kickstand Sw,     
 07140     01/27/2020 09:33:37   DEBUG: Module scheme changed from Running mode to Stopped mode   
 07141     01/27/2020 09:33:37   DEBUG: Module mode Change Does Not Require Disconnect   
 07142     01/27/2020 09:34:03   DEBUG: Module scheme changed from Stopped mode to Running mode   
 07143     01/27/2020 09:34:03   DEBUG: Module mode Change Does Not Require Disconnect   
 07144     01/27/2020 09:34:35   Riding                     PackTemp: h 15C, l 15C, PackSOC: 99%, Vpack:114.931V, MotAmps: 128, BattAmps:  16, Mods: 11, MotTemp:  22C, CtrlTemp:  17C, AmbTemp:   9C, MotRPM: 429, Odo:10496km

[BrianTRice@gmail.com]

Here's the event in question for sure, and there's also a kickstand switch entry which I think is pretty definitive:

 06958     01/21/2020 09:57:30   Disarmed                   PackTemp: h 17C, l 16C, PackSOC: 88%, Vpack:112.032V, MotAmps:   0, BattAmps:   1, Mods: 11, MotTemp:  29C, CtrlTemp:  17C, AmbTemp:  11C, MotRPM:   0, Odo:10467km
 06959     01/21/2020 09:57:45   DEBUG: Module scheme changed from Stopped mode to Running mode
 06960     01/21/2020 09:57:45   DEBUG: Module mode Change Does Not Require Disconnect
 06961     01/21/2020 09:58:30   Riding                     PackTemp: h 17C, l 16C, PackSOC: 88%, Vpack:111.090V, MotAmps: 121, BattAmps:  40, Mods: 11, MotTemp:  26C, CtrlTemp:  18C, AmbTemp:  10C, MotRPM:1235, Odo:10467km
 06962     01/21/2020 09:59:30   Riding                     PackTemp: h 17C, l 16C, PackSOC: 88%, Vpack:111.936V, MotAmps:   0, BattAmps:   1, Mods: 11, MotTemp:  30C, CtrlTemp:  18C, AmbTemp:  10C, MotRPM:   0, Odo:10468km
 06963     01/21/2020 10:00:30   Riding                     PackTemp: h 17C, l 16C, PackSOC: 87%, Vpack:111.590V, MotAmps:   0, BattAmps:   1, Mods: 11, MotTemp:  30C, CtrlTemp:  19C, AmbTemp:  10C, MotRPM:2467, Odo:10468km
 06964     01/21/2020 10:01:30   Riding                     PackTemp: h 17C, l 16C, PackSOC: 86%, Vpack:110.521V, MotAmps:   0, BattAmps:   3, Mods: 11, MotTemp:  33C, CtrlTemp:  22C, AmbTemp:  10C, MotRPM:3832, Odo:10469km
 06965     01/21/2020 10:02:30   Riding                     PackTemp: h 17C, l 16C, PackSOC: 84%, Vpack:109.103V, MotAmps:  44, BattAmps:  34, Mods: 11, MotTemp:  38C, CtrlTemp:  22C, AmbTemp:  10C, MotRPM:3076, Odo:10471km
 06966     01/21/2020 10:02:37   INFO: Max allowed voltage difference is 500mV
 06967     01/21/2020 10:03:30   Riding                     PackTemp: h 17C, l 16C, PackSOC: 85%, Vpack:110.613V, MotAmps:   0, BattAmps:   1, Mods: 11, MotTemp:  38C, CtrlTemp:  22C, AmbTemp:  10C, MotRPM:1111, Odo:10471km
 06968     01/21/2020 10:03:53   Throttle Disabled:         Kickstand Sw,
 06969     01/21/2020 10:03:53   DEBUG: Module scheme changed from Running mode to Stopped mode
 06970     01/21/2020 10:03:53   DEBUG: Module mode Change Does Not Require Disconnect
 06971     01/21/2020 10:03:55   Power Off                  Key Switch
 06972     01/21/2020 10:03:55   Sevcon Turned Off
 06973     01/21/2020 10:03:55   Module 00 Opening Contactor  vmod: 110.770V, batt curr:   1A
 06974     01/21/2020 10:03:55   Module 01 Opening Contactor  vmod: 110.756V, batt curr:   0A
 06975     01/21/2020 10:03:55   INFO:  Disabling External Chg 0 Charger 2
 06976     01/21/2020 10:03:55   INFO:  Disabling External Chg 1 Charger 3
 06977     01/21/2020 10:03:55   Turning OFF DCDC. Flags: 0x00
 06978                       0   DEBUG: Reset: Power-On
 06979                       0   Power On                   Key Switch
 06980                       0   Key On
 06981                       0   DEBUG: Module scheme changed from None mode to Running mode
 06982                       0   Module 00 Opening Contactor  vmod:   0.000V, batt curr:   0A
 06983                       0   Module 01 Opening Contactor  vmod:   0.000V, batt curr:   0A
 06984                       0   Turning ON DCDC
 06985                       0   Module 00 CAN Link Up
 06986                       0   Module 00 Registered       serial: 17tb1038,  vmod: 111.283V
 06987     01/21/2020 10:12:42   Module 01 Registered       serial: 18sg0107,  vmod: 111.074V
 06988     01/21/2020 10:12:42   Module 01 CAN Link Up
 06989     01/21/2020 10:12:42   Sevcon Turned On
 06990     01/21/2020 10:12:42   DEBUG: Module scheme changed from Running mode to Stopped mode
 06991     01/21/2020 10:12:42   DEBUG: Module mode Change Does Not Require Disconnect
 06992     01/21/2020 10:12:43   Sevcon CAN Link Up
 06993     01/21/2020 10:12:43   DEBUG: Sevcon Contactor Drive ON.
 06994     01/21/2020 10:12:43   Module 00 Closing Contactor  vmod: 111.302V, maxsys: 111.302V, minsys: 111.048V, diff: 0.254V, vcap: 98.937V, prechg: 88%
 06995     01/21/2020 10:12:44   Module 01 Closing Contactor  vmod: 111.071V, maxsys: 111.339V, minsys: 111.071V, diff: 0.268V, vcap: 111.687V, prechg: 100%
 06996     01/21/2020 10:12:44   DEBUG: Module 00 Contactor is now Closed
 06997     01/21/2020 10:12:44   INFO:  Enabling External Chg 0 Charger 2
 06998     01/21/2020 10:12:44   INFO:  Enabling External Chg 1 Charger 3
 06999     01/21/2020 10:12:44   DEBUG: Module 01 Contactor is now Closed
 07000     01/21/2020 10:12:51   Disarmed                   PackTemp: h 17C, l 16C, PackSOC: 85%, Vpack:111.242V, MotAmps:   0, BattAmps:   1, Mods: 11, MotTemp:  29C, CtrlTemp:  17C, AmbTemp:  11C, MotRPM:   0, Odo:10472km
 07001     01/21/2020 10:12:57   DEBUG: Module scheme changed from Stopped mode to Running mode
 07002     01/21/2020 10:12:57   DEBUG: Module mode Change Does Not Require Disconnect
 07003     01/21/2020 10:13:52   Riding                     PackTemp: h 17C, l 16C, PackSOC: 85%, Vpack:111.191V, MotAmps:   0, BattAmps:   1, Mods: 11, MotTemp:  29C, CtrlTemp:  17C, AmbTemp:  10C, MotRPM:   0, Odo:10472km
 07004     01/21/2020 10:14:52   Riding                     PackTemp: h 17C, l 16C, PackSOC: 84%, Vpack:106.944V, MotAmps: 126, BattAmps: 148, Mods: 11, MotTemp:  32C, CtrlTemp:  21C, AmbTemp:  10C, MotRPM:4277, Odo:10472km
 07005     01/21/2020 10:15:52   Riding                     PackTemp: h 18C, l 16C, PackSOC: 82%, Vpack:109.100V, MotAmps:   0, BattAmps:   1, Mods: 11, MotTemp:  38C, CtrlTemp:  22C, AmbTemp:  10C, MotRPM:3730, Odo:10474km
 07006     01/21/2020 10:16:52   Riding                     PackTemp: h 18C, l 16C, PackSOC: 80%, Vpack:105.912V, MotAmps: 113, BattAmps: 139, Mods: 11, MotTemp:  40C, CtrlTemp:  22C, AmbTemp:  10C, MotRPM:4468, Odo:10476km
 07007     01/21/2020 10:17:52   Riding                     PackTemp: h 18C, l 17C, PackSOC: 79%, Vpack:106.011V, MotAmps: 112, BattAmps: 130, Mods: 11, MotTemp:  42C, CtrlTemp:  22C, AmbTemp:   9C, MotRPM:4043, Odo:10478km

[Doug S]

Here's the event in question for sure, and there's also a kickstand switch entry which I think is pretty definitive:

I don't care what anybody says, I hate that thing.

[Richard230]

So the problem is a flaky side stand switch?  It sure doesn't cause a problem very often - yet.  It is strange that Zero didn't pick that up when they reviewed my logs. Thanks, Brian for decoding the logs. 

I wonder if the switch was affected by me riding on wet streets, which I was doing shortly before the problem?  I think I had better give it a look-see and clean and lubricate the switch with WD-40. I haven't looked at it since I bought the bike over 2 years ago.

The side stand switch on my Royal Enfield was removed almost immediately upon the bike's purchase as they are of such poor quality that they can cause the bikes to stall as you leave the dealer.   

BTW, I just realized that the date of my power interruption was 1-28-20.  I did ride my bike on 1-21-20, but didn't notice any problem during that ride and the weather was dry that day.   

[Curt]

The log entry 06968 appears normal since 2 seconds after the side stand is put down the key is turned off. There are 32 instances like that since September.

However, there are 7 instances where Kickstand events are not followed by Key Off events. They look like Riding -> Kickstand -> Stopped -> Running -> Riding. Now I suppose these could be part of some normal scenario as well. The time between Stopped to Running varies from 15 seconds to a minute. Maybe Richard is picking up the mail or something, but the distance ridden varies.

ENTRY   DATE    KEY ON      KICKSTAND   TIME INTO RIDE
00191   09/17   09:00:09    09:03:11    3min/before first km
01443   10/08   08:07:04    08:10:10    3min/1km into ride
01646   10/11   08:13:23    08:16:16    3min/1km into ride
03026   11/02   12:10:04    12:15:38    5min/3km into ride
04277   11/26   09:05:32    09:05:45    0min/before first km
04484   11/28   08:23:05    08:26:40    3min/2km into ride
07139   01/27   10:31:26    10:33:37    2min/2km into ride


Example from 04484:

04482     11/28/2019 08:25:14   Riding                     PackTemp: h 14C, l 14C, PackSOC: 99%, Vpack:113.321V, MotAmps: 131, BattAmps:  56, Mods: 11, MotTemp:  23C, CtrlTemp:  17C, AmbTemp:  -1C, MotRPM:1616, Odo: 9912km
 04483     11/28/2019 08:26:14   Riding                     PackTemp: h 14C, l 14C, PackSOC: 99%, Vpack:115.081V, MotAmps:   0, BattAmps:   1, Mods: 11, MotTemp:  24C, CtrlTemp:  16C, AmbTemp:  -1C, MotRPM:1674, Odo: 9913km
 04484     11/28/2019 08:26:40   Throttle Disabled:         Kickstand Sw,
 04485     11/28/2019 08:26:40   DEBUG: Module scheme changed from Running mode to Stopped mode
 04486     11/28/2019 08:26:40   DEBUG: Module mode Change Does Not Require Disconnect
 04487     11/28/2019 08:26:56   DEBUG: Module scheme changed from Stopped mode to Running mode
 04488     11/28/2019 08:26:56   DEBUG: Module mode Change Does Not Require Disconnect
 04489     11/28/2019 08:27:14   Riding                     PackTemp: h 14C, l 13C, PackSOC: 99%, Vpack:113.751V, MotAmps:  78, BattAmps:  44, Mods: 11, MotTemp:  25C, CtrlTemp:  17C, AmbTemp:  -1C, MotRPM:2082, Odo: 9913km
 04490     11/28/2019 08:28:14   Riding                     PackTemp: h 14C, l 13C, PackSOC: 98%, Vpack:113.084V, MotAmps: 158, BattAmps:  45, Mods: 11, MotTemp:  30C, CtrlTemp:  19C, AmbTemp:  -1C, MotRPM:1023, Odo: 9914km
 04491     11/28/2019 08:29:14   Riding                     PackTemp: h 14C, l 13C, PackSOC: 98%, Vpack:114.608V, MotAmps:   0, BattAmps:   2, Mods: 11, MotTemp:  28C, CtrlTemp:  17C, AmbTemp:  -1C, MotRPM:2499, Odo: 9915km

[BrianTRice@gmail.com]

Richard has to weigh in here to interpret these. I looked at the time period referenced and the length of time involved.

I missed the 2 second gap, but the fact that the bike was restarted after another 9 minutes suggests it was a trouble stop and not intentional.

This is one reason why having Zero customer service be the sole interpreter of the logs is flawed. The rider knows what was happening when, and logs are only software event triggers which could have any number of causes.

[remmie]

remembering the ODO reading on the dash when such an event happens would help tremendously as this narrows the search to just a few lines in the log.

[Richard230]

remembering the ODO reading on the dash when such an event happens would help tremendously as this narrows the search to just a few lines in the log.

That is good advice and I will try to do that if the problem occurs again. (I will off on a ride to visit my daughter today and will look for any issues during my trip.)

The only time that I can think of when I leave the ignition on during a ride while the side stand is down is when I stop by a mail box to mail a letter.  However, it is true that upon returning home after a ride I will stop the bike and extend the side stand with the ignition on while I zero out my trip meter. That could take about a minute or two as I struggle to push the button and wait for the zero to appear. 

I never have had a "trouble stop", but visiting the post office, picking up a newspaper from a rack, or doing something else like that could take a short period of time like 9 minutes.  The reason that I really like my Zero is that I can take short trips here and there without worrying about discharging the battery or not warming up the oil of my ICE vehicles.   

So far the only thing typical about the momentary stalling that I have experienced is that it occurs a few seconds after slowly leaving a stop at a speed of about 10 mph.  Sometimes it happens a few minutes into my ride with the SOC reading 100% and sometimes later in the ride with the SOC around 90% (to the best of my recollection).  I can't recall it ever happening when the SOC was below 90%, if that means anything. 

Right now I believe that we have likely sucked as much information out of my logs regarding this incident as possible.  From now on I intend to be more watchful about any further power disruptions (if any) and if it happens again I will download the logs and either post here again or start another thread, whichever you think would be best.

[motorrad36]

I think anytime we can come together to learn more about how logs can inform our rides is a good thing. That being said, one thing to look out for in the logs is the event trigger for your ignition switch in the middle of a ride. I posted a thread about a similar result, a momentary loss of power, but mine is potentially my ignition cable going bad. It’s intermittent so a little difficult to track, and it hasn’t happened in days. But does your power cut out pulling away in a straight line or on a turn? Mine does it on a slight turn, and the semi-consensus is the ignition cable can get trapped between the steering head and the frame, pinching it. Eventually it’ll cause enough damage to stop it from working.

[Richard230]

I think anytime we can come together to learn more about how logs can inform our rides is a good thing. That being said, one thing to look out for in the logs is the event trigger for your ignition switch in the middle of a ride. I posted a thread about a similar result, a momentary loss of power, but mine is potentially my ignition cable going bad. It’s intermittent so a little difficult to track, and it hasn’t happened in days. But does your power cut out pulling away in a straight line or on a turn? Mine does it on a slight turn, and the semi-consensus is the ignition cable can get trapped between the steering head and the frame, pinching it. Eventually it’ll cause enough damage to stop it from working.

It always happens in a turn from a stop, both a left an right turn.  So you may be on to something there.  One more thing to check out. Are you talking of the wires leading to the ignition switch?  That has been a problem on a some ICE bikes for years when they get some miles on the clock.  The older they get the more likely something like that may show up. Thanks for the comment.

I rode 80 miles today without a problem.

[motorrad36]

Yes exactly!! In a pull away slight turn. At least I’m not alone there. The big difference is your log specifies kickstand switch, mine says ignition switch. Probably little change they’re wired through the same nexus of the wiring harness, but it’s possible that will become more of a weakness as our bikes enter decade 2+ of service.

[ESokoloff]

......
It always happens in a turn from a stop, both a left an right turn.  So you may be on to something there.  One more thing to check out. Are you talking of the wires leading to the ignition switch?  That has been a problem on a some ICE bikes for years when they get some miles on the clock.  The older they get the more likely something like that may show up.
..........

This (intermittent  loose wire @ ignition switch) happened to my 03 BMW RT.
Wire loom was installed with too many zip ties that resulted in a conductor severing resulting in intermittent excitement 

[BrianTRice@gmail.com]

That's an interesting hypothesis. The OP is testing the kickstand switch weather protection per his other thread, but harness tugging is a type of investigation we haven't really firmed up yet.

[Richard230]

That's an interesting hypothesis. The OP is testing the kickstand switch weather protection per his other thread, but harness tugging is a type of investigation we haven't really firmed up yet.

I did check my ignition wires and didn't notice any problem or stress on the switch wires when the forks were turned side to side.

[Evilthor]

Lately I have experienced a momentary power interruption every now and then when accelerating from a stop. There is seems to be no obvious pattern to the issue, other than it happens when leaving a stop and when my speed is about 10 mph.  It happens perhaps every fifth ride and only lasts a for a fraction of a second.  I originally thought that my glove was slipping on the throttle grip and that was causing the problem.  But today I am pretty sure that my glove did not slip when it happened again. No big problem as long as it doesn't get worse. Today I was riding in light rain when it happened, but I did that yesterday and didn't experience the "glitch".  Anyone have any thoughts?   

You may wish to check the kickstand sensor. Sounds like it may be jostled by the weight of the kickstand moving during initial acceleration.