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Author Topic: Range experimentation  (Read 6243 times)

Skidz

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Re: Range experimentation
« Reply #60 on: October 27, 2016, 02:20:42 AM »

The key fob is for a Dutch charging provider called The New Motion... not the cheapest but good coverage and this way i can't forget to take it ;)
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Shadow

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Re: Range experimentation
« Reply #61 on: November 06, 2016, 06:15:31 AM »

After work in Truckee with a full charge today I went to a Costco warehouse store in Reno and then back down to Kings Beach:




Today's haul was 4kg pasta, 7.6kg sauce, 4.53kg oatmeal, all totaling 16.13kg (35+1/2 lbs). I'm a 5'10" long 180lbs rider. The tires are at 40psi. I did not tuck or do anything special just custom mode disable regen unless using brakes, and top speed limited to 65mph which I tried to keep to 55mph.
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bikerscooby

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Re: Range experimentation
« Reply #62 on: November 10, 2016, 05:45:06 AM »

90 miles on that route on one charge and then 19% left?  Wow.  Keeping the speed below 65 mph must be the main factor.  My 2016 SR was similarly loaded on my range test trip in ECO mode but I had throttle to the max the whole time (70 mph) and range was more like 65 miles from 100% to 2% (that was Palm Springs to Fontana).
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Skidz

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Re: Range experimentation
« Reply #63 on: November 10, 2016, 04:43:13 PM »

For science!

Just went on a ride to see the range at Dutch highway speeds. 4,5 km to the highway, 120km/h until 50%, take exit, ride back exact same route at approximately same speed. I took my Oregon 600 with me to log the route and speeds, and had the GoPro aimed at the clockwork to record a video of the ride's dynamics.
Took me 59 minutes to empty the bike to 0%, which was at the highway exit I need to take to get home so the last 4,5km were a bit tight, but made it home without pushing ;)

I'll upload the video and a GPX/KML file for the statistics and work out how much I actually used on this trip. Furthermore, I just started the charge so I can see through my kWh meter device how much AC goes in with only 3,7km remaining on the battery ;)
« Last Edit: November 10, 2016, 04:55:06 PM by Skidz »
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Shadow

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Re: Range experimentation
« Reply #64 on: November 10, 2016, 09:14:10 PM »

100% SoC 2016 DSR ZF13.0:

59.6mi 70% SoC


100.1mi 50% SoC


169.1mi 02% SoC


Route is Kings Beach CA to Fairfield CA, a drop in elevatiin of several thousand feet.

Average speed 40-45mph except when crazy Sacramento trucknutz drivers ran me off the slow lane aggressively. Most drivers had no such mental defect to just use one of the wide open fast lanes.

On a mission returning Elcon 2500 charging setup to @BrianTRice what he lended to me. Thanks!
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Skidz

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Re: Range experimentation
« Reply #65 on: November 12, 2016, 11:44:53 PM »

As promised, the data:

Zero DSR ZF13 Range test #1: Ambient temp 5 degrees C, SOC at departure: 100%, SOC at arrival: 0%, duration: 59 minutes, Start kWh 12.064, end kWh 0.384, distance travelled 84.2km, altitude gained 210m, altitude lost 210m

Video of the ride, camera on the dash: https://www.youtube.com/watch?v=5KYSp303FoI&feature=youtu.be
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Shadow

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Re: Range experimentation
« Reply #66 on: November 13, 2016, 02:12:45 AM »

@Skidz what settings or is that sport mode?
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Skidz

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Range experimentation
« Reply #67 on: November 13, 2016, 02:14:05 AM »

@Skidz what settings or is that sport mode?

Custom mode, 100% torque, 100% power, 40%/100% regen
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oobflyer

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Re: Range experimentation
« Reply #68 on: November 14, 2016, 06:50:24 AM »

I've found that I can dramatically increase my range by 'drafting' behind a big semi-truck. On long rides sometimes I just stay a few car-lengths behind a truck which increases my range by about 40%. That's no exaggeration - usually I use about 1%/mile on my '15 SR (with PowerTank) on the freeway, so a 50 mile ride uses about 50% of the battery. When I'm behind a truck I can make the same run on only 30% (70% remaining after riding 50 miles).

However I DO NOT recommend this technique.  ;-)


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2021 Energica Ribelle, 2015 Zero SR, 2012 Zero ZF9, 2007 Vectrix VX-1 Li+, 2012 Nissan Leaf, 2018 Nissan Leaf, 2020 Nissan Leaf, 2018 Tesla Model 3, 2023 Tesla Model Y

oobflyer

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Re: Range experimentation
« Reply #69 on: November 14, 2016, 06:57:45 AM »

Patrick Truchon

Quote
I tried to model range vs speed last year.  Have a look here: https://ptruchon.pagekite.me/wiki/rangevsspped

Amazing amount of science and math.

I'm guessing you did this as a thesis for your master's degree in engineering?
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2021 Energica Ribelle, 2015 Zero SR, 2012 Zero ZF9, 2007 Vectrix VX-1 Li+, 2012 Nissan Leaf, 2018 Nissan Leaf, 2020 Nissan Leaf, 2018 Tesla Model 3, 2023 Tesla Model Y

clay.leihy

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Re: Range experimentation
« Reply #70 on: November 14, 2016, 08:04:24 AM »

The Mythbusters covered that pretty well. They found that the real gain is in following VERY close, enough to be truly dangerous.

Sent from my Z981 using Tapatalk

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Clay
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Erasmo

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Re: Range experimentation
« Reply #71 on: November 14, 2016, 12:53:55 PM »

But a car already has a proper streamlining, a naked bike not. There is a significant wake behind a truck:

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clay.leihy

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Re: Range experimentation
« Reply #72 on: November 14, 2016, 01:27:32 PM »

But a car already has a proper streamlining, a naked bike not. There is a significant wake behind a truck:


Those pretty colors represent not calm air space but turbulence, comparing rigs with different devices meant to eliminate it. Looks to me like the nice clear spot is in the first 250m behind the trailer.

Sent from my Z981 using Tapatalk

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Clay
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Fred

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Re: Range experimentation
« Reply #73 on: November 14, 2016, 03:17:06 PM »

What you really want to do is get close enough to hold on to the back of the truck and touch the back brake just enough to get some regenerative braking happening. ;-)
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Erasmo

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Re: Range experimentation
« Reply #74 on: November 14, 2016, 03:56:35 PM »

What you really want to do is get close enough to hold on to the back of the truck and touch the back brake just enough to get some regenerative braking happening. ;-)
I just lasso on to their hitch ;D
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