ElectricMotorcycleForum.com

  • November 26, 2024, 02:46:08 AM
  • Welcome, Guest
Please login or register.

Login with username, password and session length
Advanced search  

News:

Electric Motorcycle Forum is live!

Pages: [1]

Author Topic: Zero App vs. Zero Dash  (Read 1114 times)

JaimeC

  • Hero Member
  • *****
  • Posts: 1987
    • View Profile
    • Facebook page
Zero App vs. Zero Dash
« on: May 01, 2016, 12:30:15 AM »

Got a RAM mount so I can keep an eye on my phone while I rode.  When the Zero app is running, I noticed a couple of disparities:  The speed displayed on the app is different from the speed on the dash; I attribute that to the app collecting its data via the phone's GPS.  However, the app was also showing a consisted 2% higher rate of charge than on the dash.  Anyone know why that should be?  If the dash is displaying 50%, and the phone is displaying 52%, should I assume the actual value is 51%?  Just curious... that 2% isn't going to make any difference in when I hit "panic mode" or not...
Logged
1999 BMW K1200LT
2019 Yamaha XMAX
2021 Zero SR

Erasmo

  • Hero Member
  • *****
  • Posts: 1116
    • View Profile
Re: Zero App vs. Zero Dash
« Reply #1 on: May 01, 2016, 02:10:35 AM »

The speed on the phone doesn't come from the GPS but from the motor/computer. I had a bike on a paddock stand to do some testing and even with the belt disconnected it would display a speed.
Logged

JaimeC

  • Hero Member
  • *****
  • Posts: 1987
    • View Profile
    • Facebook page
Re: Zero App vs. Zero Dash
« Reply #2 on: May 01, 2016, 04:37:46 AM »

Okay... then I have no explanation for why those numbers don't agree either, then.
Logged
1999 BMW K1200LT
2019 Yamaha XMAX
2021 Zero SR

DPsSRnSD

  • Sr. Member
  • ****
  • Posts: 297
    • View Profile
Re: Zero App vs. Zero Dash
« Reply #3 on: May 01, 2016, 11:47:18 AM »

I'd understand if the phone app showed readings with a delay with respect to the bike instrument panel. But I don't know how to explain the bike showing that I use about 60 Wh/mi trip and lifetime, while the phone app shows about 90 Wh/mi.
Logged
2020 Zero SR/S
Previously: 2016 Zero SR

ctrlburn

  • Sr. Member
  • ****
  • Posts: 399
  • 79_HD_Sportster 2013_Zero_S 2020_HD_LiveWire
    • View Profile
    • Charging Cycles
Re: Zero App vs. Zero Dash
« Reply #4 on: May 01, 2016, 07:49:20 PM »

With speed - I know on the older "2013" dash we can set different ratios for gearing.

I doubt that value is communicated back to the bluetooth central brain because there is also a "drift" in Odometer which gets bigger (or smaller) as you "calibrate" the Speedometer hardware between the APP and the DASH.



Logged

Electric Terry

  • Hero Member
  • *****
  • Posts: 705
    • View Profile
Re: Zero App vs. Zero Dash
« Reply #5 on: May 01, 2016, 09:01:18 PM »

The app will read 5% when the dash reads 0%.  The dash will never show 1% it just skips it.

So at low SOC it's really 4% off to protect you from getting yourself stuck somewhere.  Or to leave some in reserve

each 25% the dash gets one percent closer to actual

so at 50% on the dash its really 52% and by 100% its accurate

Logged
100,000+ all electric miles on Zero Motorcycles - 75,000+ on a 2012 Zero S and 35,000+ miles on a 2015 Zero SR
http://www.facebook.com/electricterry
http://instagram.com/electricterry
https://twitter.com/electricterry

Semper Why

  • Full Member
  • ***
  • Posts: 117
    • View Profile
Re: Zero App vs. Zero Dash
« Reply #6 on: May 05, 2016, 11:19:41 PM »

The app will read 5% when the dash reads 0%.  The dash will never show 1% it just skips it.
Yeah, I found this out the exciting way.

Quote from: Electric Terry
So at low SOC it's really 4% off to protect you from getting yourself stuck somewhere.  Or to leave some in reserve
each 25% the dash gets one percent closer to actual
so at 50% on the dash its really 52% and by 100% its accurate
This is information that would have been really good to know about three weeks ago. Thanks for the info!
Logged

Doug S

  • Hero Member
  • *****
  • Posts: 1631
    • View Profile
Re: Zero App vs. Zero Dash
« Reply #7 on: May 05, 2016, 11:25:08 PM »

The dash will never show 1% it just skips it.

Completely meaningless thing I've noticed on my bike: it NEVER shows me 81%. Every morning on my ride to work I'm in the 82-86% range at the start of a long gradual downhill, so I'm using energy slowly for a couple of miles. The SoC indicator inches down very slowly...except when it gets to 82%. Instead of showing me 81% next, it jumps right to 80%. It happens every single time, so it's clear there's just no 81% on my bike. I wonder if every Zero does it or if my bike has had an 81-ectomy.
Logged
There's no better alarm clock than sunlight on asphalt.

Justin Andrews

  • Hero Member
  • *****
  • Posts: 1032
    • View Profile
Re: Zero App vs. Zero Dash
« Reply #8 on: May 06, 2016, 09:11:35 PM »

Mine does the same, also it jumps from 62% to 60%
I'm guessing its rounding something somewhere else which causes this jump.
Logged
Zero 2015 SR (+PT);
Yamaha Diversion 900
Pages: [1]