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Author Topic: 2013 S: Watt Hours per mile?  (Read 5169 times)

nekodan

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2013 S: Watt Hours per mile?
« on: August 05, 2013, 06:03:34 AM »

Hi,
My bike is telling me: 146 watt hours per mile. I believe that this number was lower before I installed the windscreen, but I don't recall for sure.

I'm curious to hear what other people are experiencing.


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RickSteeb

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Re: 2013 S: Watt Hours per mile?
« Reply #1 on: August 05, 2013, 06:37:07 AM »

The question is what is watts vs speed equation.  Assuming the 146 Whr reading was made at a constant speed of 60MPH, that works out to 8760 watts to maintain 60MPH.  The power consumption is an exponential function of speed, i.e. assuming your range at 30 MPH is double the range at 60 MPH, the power required to maintain 30MPH would be ~2190 watts.  [if my arithmetic is working;]
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Current fleet: (2012 DS Recalled), 2014 SR, 2013 FX

trikester

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Re: 2013 S: Watt Hours per mile?
« Reply #2 on: August 05, 2013, 09:41:24 AM »

On some of my dirt rides where the ave speed is low my 2013 FX gets down around 68 Wh/Mi as I recall.

Speed kills - electrons  ;D

Tikester
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ctrlburn

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Re: 2013 S: Watt Hours per mile?
« Reply #3 on: August 23, 2014, 09:24:43 PM »

Phone App says average watt hours per mile is 125 over 2900 miles on a 2013 11.4 S.

Paved, fairly flat, 200# rider with a commute that averages 42mph.
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NanoMech

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Re: 2013 S: Watt Hours per mile?
« Reply #4 on: August 23, 2014, 09:50:51 PM »

My phone app indicates an average of 109 watts/mile for the 1100 miles I have placed on my 2014 DS 14.2 kWH. I have a windscreen and the 25T "torque" gearing and my average speed in the Santa Cruz mountains is around 40 mph, with 10% at 70mph. I always ride in the Sport, or Custom (100% torque, 80 mph max, 67% regen, 100 brake regen) modes and have not exceeded 100 miles on a trip, to date, and usually returning home with more than 20% power remaining.
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2014 Zero DS "Wrangler", PowerTank, 25T drive sprocket: www.AnglerWranglers.com

WindRider

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Re: 2013 S: Watt Hours per mile?
« Reply #5 on: August 24, 2014, 01:00:48 AM »

65-90 WH/mi on 2013 FX riding trails.   100-140 WH/mi riding pavement.  Speed, wind, hills, and rider mass are the big variables in WH/mi.   

Speed is the biggest variable and electric motorcycles are more speed sensitive in terms of efficiency than ICE bikes.   For example, my gas bike gets 80 MPG in around town riding, 75 MPG on the Highway, and 65-70 MPG running hard on the freeway.  In comparison, my FX goes 2X or more farther riding around town as opposed to freeway riding. 

Speed burns the electrons as Trikester noted. 
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DesignerDan

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Re: 2013 S: Watt Hours per mile?
« Reply #6 on: August 24, 2014, 02:56:43 AM »

105 Wh/mile. I never reset my statistics. My odometer reads 23,000 + miles.

Sometimes I ride very conservatively.

Sometimes I ride at a "normal" pace.

Most of the time I ride like I stole it.

I only weigh 140 lbs so that's probably why my overall Wh/mile is pretty low.
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Richard230

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Re: 2013 S: Watt Hours per mile?
« Reply #7 on: August 24, 2014, 03:14:23 AM »

I don't trust the Zero app, however I do keep my eye on the average trip wpm display used on the speedometer at the end of each ride.  Riding normally and sticking to the speed limits, I typically use 85 watts per mile.  While riding on the freeway, I seem to use about 100 wpm.  Steady as she goes makes for a longer trip and less range anxiety.   :)
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Richard's motorcycle collection:  2018 16.6 kWh Zero S, 2020 KTM 390 Duke, 2002 Yamaha FZ1 (FZS1000N) and a 1978 Honda Kick 'N Go Senior.

ctrlburn

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Re: 2013 S: Watt Hours per mile?
« Reply #8 on: August 24, 2014, 03:52:08 AM »

While not trusting the Zero app as empirical is fine- it still serves comparatively.
 
I also use Noom's Cardio Trainer and occasionally track "driving" as a workout - mostly for the neat charts.

This my ride home...
« Last Edit: August 25, 2014, 07:11:27 AM by ctrlburn »
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BSDThw

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Re: 2013 S: Watt Hours per mile?
« Reply #9 on: August 24, 2014, 11:47:19 AM »

Quote
While not trusting the Zero app as empirical is fine- it still serves comparatively.

If I load my bike and compare the actual dc-current into the bike vs the app I can't trust the app too;)

But it is a good tool anyway!
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Air Drag Sucks - 2012 Zero DS ZF9 - 2013 Zero FX ZF5.7
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