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Author Topic: Why voltage needs to be on the app  (Read 545 times)

Electric Terry

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Why voltage needs to be on the app
« on: June 01, 2017, 01:38:33 PM »

104 volts at 90% is not accurate. Trust the voltage which says to me about 55% or 60% not 90%. The bike is charging with the onboard right now so real voltage might be 103. So perhaps 55%. 90% should be about 111-112 volts so the SOC meter is inaccurate sometimes. Use the hack to exit out of the run screen and reconnect while riding to get the battery screen and see voltage.  For all you with 2014's this will be very handy to know real SOC.  Just know that voltage can dip 10-12 volts while accelerating so to know real voltage you must regen to slow down then come to a stop for about 10 seconds or coast if riding

The key to take away from this is if you feel power limiting, come to a stop, check battery voltage, if it's 96 volts or below, find a charger soon, even if your SOC says 60%, you're really about 15%

Even the iPhone can't estimate SOC correct so don't blame Zero, they are doing the best they can with available current sensors, although the 2017's have dual sensors and are extremely accurate.  But this is why we need voltage displayed on the app.
« Last Edit: June 01, 2017, 01:52:27 PM by Electric Terry »
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hubert

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Re: Why voltage needs to be on the app
« Reply #1 on: June 01, 2017, 06:02:33 PM »

hello, how can you get such strange combinations of SOC and voltage?

My 2014 S shows following figures, taken from the log, values at 0Battamps

32% 99V
48% 102V
66% 105V

seems quite realistic, ?
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MrDude_1

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Re: Why voltage needs to be on the app
« Reply #2 on: June 01, 2017, 06:30:29 PM »

hello, how can you get such strange combinations of SOC and voltage?

My 2014 S shows following figures, taken from the log, values at 0Battamps

32% 99V
48% 102V
66% 105V

seems quite realistic, ?

I think he sees more drift than most because of his rate of charge... but that's just a guess.
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togo

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Re: Why voltage needs to be on the app
« Reply #3 on: June 15, 2017, 01:34:01 PM »

Diginow dongle owners can read voltage with Anton's new app. Play Store, named Zero Voltage, company name is Bitshape.  I've been testing it, mostly Nexus devices, works great for me.
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2014 Zero SR, highly accessorized. 2008 Vectrix VX-1, maybe for sale, stock, very reliable.  I lost my faith in Zero with my 2011 S, but regained it with my 2014 SR.  Also, a 2001 Honda Helix, black, kept for sentimental reasons.

MrDude_1

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Re: Why voltage needs to be on the app
« Reply #4 on: June 16, 2017, 09:36:19 PM »

Diginow dongle owners can read voltage with Anton's new app. Play Store, named Zero Voltage, company name is Bitshape.  I've been testing it, mostly Nexus devices, works great for me.
thats the voltage at the charger, correct?
not the voltage of the cells.
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anton

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Re: Why voltage needs to be on the app
« Reply #5 on: June 16, 2017, 10:18:39 PM »

Diginow dongle owners can read voltage with Anton's new app. Play Store, named Zero Voltage, company name is Bitshape.  I've been testing it, mostly Nexus devices, works great for me.
thats the voltage at the charger, correct?
not the voltage of the cells.
That is the voltage of the cells 8) It shows battery voltage, charging amps, charging watts, cell balance and high/low cell temperatures.
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Shadow

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Re: Why voltage needs to be on the app
« Reply #6 on: June 17, 2017, 12:21:27 AM »

thats the voltage at the charger, correct?
not the voltage of the cells.
Diginow Data Reaper dongle can read the bike system status and that combines with Anton's app to give him a readout of the system voltage. Charging output and battery charging input are coupled they are the same thing, and if charging process ends the voltage settles down within 1Vdc or so.
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togo

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Re: Why voltage needs to be on the app
« Reply #7 on: June 20, 2017, 07:58:21 PM »

Here's what it looks like.
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2014 Zero SR, highly accessorized. 2008 Vectrix VX-1, maybe for sale, stock, very reliable.  I lost my faith in Zero with my 2011 S, but regained it with my 2014 SR.  Also, a 2001 Honda Helix, black, kept for sentimental reasons.

togo

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Re: Why voltage needs to be on the app
« Reply #8 on: June 20, 2017, 08:02:19 PM »

Here's what it looks like.

Temperatures are temperatures inside the pack, low and high.  If you ride fast and then charge fast you can have the contactor open due to over temperature, especially on 2013-2014. Newer bikes don't had the insulating dead air space, I'm told.
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Motorcycles are for everyday transportation.  And fun too.
2014 Zero SR, highly accessorized. 2008 Vectrix VX-1, maybe for sale, stock, very reliable.  I lost my faith in Zero with my 2011 S, but regained it with my 2014 SR.  Also, a 2001 Honda Helix, black, kept for sentimental reasons.

Булгаков

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Re: Why voltage needs to be on the app
« Reply #9 on: June 26, 2017, 05:22:02 AM »

I was considering adding a voltmeter using something like this: (up to 150VDC meter)
https://www.amazon.com/DROK-Waterproof-Voltmeter-4-5-150V-Automotive/dp/B01JZ02YBI?psc=1&SubscriptionId=AKIAILSHYYTFIVPWUY6Q&tag=duckduckgo-d-20&linkCode=xm2&camp=2025&creative=165953&creativeASIN=B01JZ02YBI


But then I saw this one that can display voltage as well as % charge based on a multiple of 3.2V or 3.7V cells (up to 120V).
https://www.amazon.com/DROK-Voltmeter-Electromobile-Waterproof-Lead-acid/dp/B01M8NQZ2Z/ref=pd_bxgy_328_img_2?_encoding=UTF8&pd_rd_i=B01M8NQZ2Z&pd_rd_r=KC66ZXE96SAHCNKEGN9V&pd_rd_w=UwZaO&pd_rd_wg=G3PLB&psc=1&refRID=KC66ZXE96SAHCNKEGN9V

I wonder if the second meter %charge battery indicator would be useful or just more misinformation?
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Doctorbass

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Re: Why voltage needs to be on the app
« Reply #10 on: June 26, 2017, 09:06:10 AM »

CYCLE ANALYST is the best tool.

I'm using this device on all my ebike build since 10 years.

I see that there is a new apps fo the Zero voltage ( Great!)  but why are Zero  not working to correct the voltage reading error  problem on the ZERO apps?


Doc
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togo

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Re: Why voltage needs to be on the app
« Reply #11 on: June 26, 2017, 02:38:17 PM »

CYCLE ANALYST is the best tool.

I'm using this device on all my ebike build since 10 years.

I see that there is a new apps fo the Zero voltage ( Great!)  but why are Zero  not working to correct the voltage reading error  problem on the ZERO apps?


Doc

The problem is not just with the app! My 2014 SR, with fresh firmware, showed 52% charge when I got lots of thrust. I proceeded to the closest chargepoint and charged 9.8kwh!  It actually reduced SoC during charging for the first charge. I typically see my SoC a bit inaccurate (loss of thrust at 6-10%) but today was ridiculous.

(Doc, you should find to Refuel at Laguna Seca next year.)
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Motorcycles are for everyday transportation.  And fun too.
2014 Zero SR, highly accessorized. 2008 Vectrix VX-1, maybe for sale, stock, very reliable.  I lost my faith in Zero with my 2011 S, but regained it with my 2014 SR.  Also, a 2001 Honda Helix, black, kept for sentimental reasons.
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