BARF - Bay Area Riders Forum

Go Back   BARF - Bay Area Riders Forum > Club House > Dirty BARFing


Notices

Reply
 
Thread Tools Display Modes
Old 05-27-2020, 12:04 PM   #1
HadesOmega
Veteran
 
HadesOmega's Avatar
 
Barfie Winner 2017

Join Date: Feb 2008
Location: San Jose
Motorcycles: Empulse TT, ZR7, DR650, KLR650, 750 Turbo, Light Bee MX, KLX140L
Name: Merlin
HadesOmega's Stonyford Memorial Day Ride

Stonyford is so open! Did the THill track day and headed to Stonyford and did some electro dirtbiking action with the Sur Ron Light Bee on Memorial Day. When I was driving down the M10 I looked down below and there were HELLA people camping. Everyone popped smoke when the heat rolled in during memorial day though. It's almost as if Shelter in Place is non existant here!


I know there was a big fire at Stony a while back like last year but all the trails I rode (I didn't ride all of them) were open and in good shape. All I have to say electric bike + hot weather + stonyford hillclimbs = controller overheat (thermal cutback). Best to come when temps aren't in triple digits. I did exactly what I said rode in the morning. Came back to camp and charged the bike and tried to chill out till it got cooler then went for another ride. It was so hot but depending where you were it would be cooler like on Potato Hill it was cooler because it's higher up and more canopy up there.

First Ride was Potato Hill




Potato Hill





About 85% up the crest of Potato Hill the controller overheated so I had to take a break




Turns out it overheated at almost top, a constant 2000ft climb = hot controller




Singletrack at the top of Potato Hill



Last edited by HadesOmega; 05-28-2020 at 08:03 AM..
HadesOmega is offline   Reply With Quote
Old 05-27-2020, 12:05 PM   #2
HadesOmega
Veteran
 
HadesOmega's Avatar
 
Barfie Winner 2017

Join Date: Feb 2008
Location: San Jose
Motorcycles: Empulse TT, ZR7, DR650, KLR650, 750 Turbo, Light Bee MX, KLX140L
Name: Merlin
Back down the hill



No shortage of great views up here



Before I head down 2000 feet let's go do the steepest section, I took the more gentle one up. I think I nearly made it to the top but I decided to turn around as my state of charge was around 24%. You'd think you'd want to turn around around 50%, but remember what the mountain taketh away on the climb it will giveth it back on the way down.




Had to take a break here and cool the controller down. The nice thing about this climb is it goes up in steps. It turns out according to the Google Earth map it looks like I made it to the very last step and turned around. Bummer but I was running out of juice and the last step was the steepest one and the controller was overheating again. Now I suppose if I did get stuck I might be able to just push the bike up it.


HadesOmega is offline   Reply With Quote
Old 05-27-2020, 12:06 PM   #3
HadesOmega
Veteran
 
HadesOmega's Avatar
 
Barfie Winner 2017

Join Date: Feb 2008
Location: San Jose
Motorcycles: Empulse TT, ZR7, DR650, KLR650, 750 Turbo, Light Bee MX, KLX140L
Name: Merlin
Time to head back down



On the way down I noticed this trail was lined by these little purple flowers





It's been awhile since I have seen these amazing views


So check this out. This shows you just how much altitude you gain and loose riding on Potato Hill. It just got up one way and goes down the other for 2000ish feet. I started off with 24% on the battery and I was working the regen on the way down and I noticed hey I gained a percent back 1% bringing the SOC to 25%! That's the first time I had noticed the battery was actually getting a significant charge back! Generally when you go down a hill you pretty much don't gain or lose any SOC (state of charge) it'll generally be the same but this is the first time I saw it going up! By the time I got back to the floor at 1600ft I had gained about 3%! It went from 24% to 27%! Pretty amazing the climb/descent and the regen on the Light Bee was pretty amazing.





And back to camp. It was great up top Potato Hill, the weather was nice and there was a canopy. Down here it already 80F+, I fired up the generator and charged the Light Bee. Eventually the temps go to 100F it was soooo hot!



I rode my Empulse up the M10 for a while. It wound up turning into an adventure ride because I forgot half the road going to Lett's Lake was dirt. Got to do some electric scrambler action. But yeah the parts near Lett's Lake was where all the burned stuff is. I couldn't even get to the Lake everything was closed in the end.

Last edited by HadesOmega; 05-27-2020 at 01:03 PM..
HadesOmega is offline   Reply With Quote
Old 05-27-2020, 12:24 PM   #4
banshee01
Veteran
 
banshee01's Avatar
 

Join Date: May 2007
Location: South Bay, the Deep South
Motorcycles: 21 150xcw 21 300xcw 20 Te250i 19 500excf 19fe501 12 kx100 04 bbr TTR125 01 yz125
Name: George
Really cool man thanks for sharing
banshee01 is online now   Reply With Quote
Old 05-27-2020, 01:58 PM   #5
budman
General Menace
 
budman's Avatar
 
AMA Life Member #203453
Highway Aviator
Founding Member
Top Percent Poster
Community Contributor + BB
Moto Junkie

Join Date: Apr 2002
Location: Palo Alto, Ca.
Motorcycles: Keep me rocking life
Name: Budman
Even your pictures look hot!!

Good stuff Merlin.. as always
budman is offline   Reply With Quote
Old 05-28-2020, 08:11 AM   #6
HadesOmega
Veteran
 
HadesOmega's Avatar
 
Barfie Winner 2017

Join Date: Feb 2008
Location: San Jose
Motorcycles: Empulse TT, ZR7, DR650, KLR650, 750 Turbo, Light Bee MX, KLX140L
Name: Merlin
Charging Light Bee took roughly 3 hours to charge it back up. I had a fan for the track day also to keep the battery cool.



I camped at Mill Creek Campground. I literally took the first campsite I found. The good thing about is yep there's a creek right next to it. So I able to periodically walk down here and take a dip in the water cool off When the temps were at the peak I wish I coulda gone swimming in it. There nothing more refreshing after coming back from a ride and wading through the creek.



Battle Crocs





Ah Mill Creek was nice to have it right next to my camp.
HadesOmega is offline   Reply With Quote
Old 05-28-2020, 09:57 AM   #7
Cabrito
cabrón
 
Cabrito's Avatar
 
AMA #: 2820219
Contributor + + + + + + + + 1%

Join Date: Jun 2010
Location: Should be pounding the streets looking for work
Motorcycles: Mostly Red with big Orange spot
Name: Michael G
Good stuff Merlin! Is the controller ok with repeated shutdowns? Are you worried about it totally failing at some point?
__________________
_________________
Cabrito is online now   Reply With Quote
Old 05-28-2020, 02:02 PM   #8
HadesOmega
Veteran
 
HadesOmega's Avatar
 
Barfie Winner 2017

Join Date: Feb 2008
Location: San Jose
Motorcycles: Empulse TT, ZR7, DR650, KLR650, 750 Turbo, Light Bee MX, KLX140L
Name: Merlin
In theory it should be fine. That's the reason it starts dialing back the power to protect the electronics. But it was super hot, I put my hand on the heatsink and you didn't want to hold it there long. This is the first time I had experienced this also I've ridden this bike pretty hard and it's usually the battery that overheats first. So Stony was pretty rough on it. But yeah I was worried about frying the controller so I made sure and took breaks whenever it got too hot, you can definitely feel the power come back after it cools down. Haha this is the first time I've had to stop to give the bike a break usually it's the other way around!

Last edited by HadesOmega; 05-28-2020 at 02:07 PM..
HadesOmega is offline   Reply With Quote
Old 05-28-2020, 03:22 PM   #9
byke
Veteran
 
byke's Avatar
 
Contributor + 1%

Join Date: Sep 2011
Location: norcal
Motorcycles: gas
Name: penorface
The only acceptable use for crocs.

How far does it let you run the battery down on the Sur-Ron, percentage wise? And I assume the voltage is displayed somewhere? Do you happen to know about what the voltage reads at the lowest percentage it will let you run it down?
__________________
FREE HAND JOBS__Teh Poopie Thread__Fetal Liver on Sale!
"It's a joke. It's all a fuckin' joke. God help us all."
byke is offline   Reply With Quote
Old 05-28-2020, 04:22 PM   #10
jolo9534
Rookie
 
jolo9534's Avatar
 

Join Date: Sep 2014
Location: daly city
Motorcycles: some old, some new
Name: jolo
cool, definatly gonna check it out next month. i was actually pitted right next to ya at t-hill. orange tacoma.
jolo9534 is offline   Reply With Quote
Old 05-28-2020, 05:45 PM   #11
HadesOmega
Veteran
 
HadesOmega's Avatar
 
Barfie Winner 2017

Join Date: Feb 2008
Location: San Jose
Motorcycles: Empulse TT, ZR7, DR650, KLR650, 750 Turbo, Light Bee MX, KLX140L
Name: Merlin
Quote:
Originally Posted by byke View Post
The only acceptable use for crocs.

How far does it let you run the battery down on the Sur-Ron, percentage wise? And I assume the voltage is displayed somewhere? Do you happen to know about what the voltage reads at the lowest percentage it will let you run it down?
I don't have the stock controller I'm running a ASI BAC2000, but it will let you run it to like 3% pretty low. The battery itself has a SOC gauge on it. The controller is programmed to protect the battery from over discharge. The battery also has a BMS to protect it from overdischarge, overheat, and over errr cooling.

I have ran it all the way dead and the lowest voltage I will see it sag is 49volts. It's a 60 volt battery so you don't want to discharge it lower than 50 volts. The controller is pretty good at dialing back the power to prevent overdischarge also I've watched it.

Stonyford is a strange place to ride an electric bike because it's not very flat at all. It will eat up power like crazy climbing but going downhill it will actually gain charge, so I knew if I discharged it to like 20% I could still make it back because it's all downhill. Generally I will turn around at around 50% like when I was on the Rubicon.

Last edited by HadesOmega; 05-28-2020 at 05:49 PM..
HadesOmega is offline   Reply With Quote
Old 05-28-2020, 06:26 PM   #12
byke
Veteran
 
byke's Avatar
 
Contributor + 1%

Join Date: Sep 2011
Location: norcal
Motorcycles: gas
Name: penorface
Was just kind of curious where they set zero, because we know zero isn't truly zero, or else the battery would be one time use. That pack is 16s and if you've seen 49v at "zero", then the controller is set to ~3.065v/cell cutoff, which is an understandable tradeoff. Tough to tell what the capacity is at zero because I think you'd need to know the average discharge rate for those PF cells, per this chart. I'd guess you're using 65-75% of those 32ah's. A fun project would be to make a battery generator that could get a full recharge in, plus of course it'd be useful for all sorts of stuff, phones, music, etc. You could get one of these and like 30 of these (6s/5p) and that should do it. There's a yo-dawg in there somewhere, e-charge your e-charge.
__________________
FREE HAND JOBS__Teh Poopie Thread__Fetal Liver on Sale!
"It's a joke. It's all a fuckin' joke. God help us all."
byke is offline   Reply With Quote
Old 05-29-2020, 06:50 PM   #13
HadesOmega
Veteran
 
HadesOmega's Avatar
 
Barfie Winner 2017

Join Date: Feb 2008
Location: San Jose
Motorcycles: Empulse TT, ZR7, DR650, KLR650, 750 Turbo, Light Bee MX, KLX140L
Name: Merlin
Quote:
Originally Posted by byke View Post
Was just kind of curious where they set zero, because we know zero isn't truly zero, or else the battery would be one time use. That pack is 16s and if you've seen 49v at "zero", then the controller is set to ~3.065v/cell cutoff, which is an understandable tradeoff. Tough to tell what the capacity is at zero because I think you'd need to know the average discharge rate for those PF cells, per this chart. I'd guess you're using 65-75% of those 32ah's. A fun project would be to make a battery generator that could get a full recharge in, plus of course it'd be useful for all sorts of stuff, phones, music, etc. You could get one of these and like 30 of these (6s/5p) and that should do it. There's a yo-dawg in there somewhere, e-charge your e-charge.
Actually haha now that you mention it, I was watching this video the other day and it got my head scratching. That's a lotta cells. I used to build batteries back in the day for RC cars but that was like 6 or 7 cells. This is a bit more complicated. But if I could build something like this I could recharge this in day and recharge my bike at the end of the day. It'd be quieter also =P


youtu.be/PVnQ87Fvsk4
HadesOmega is offline   Reply With Quote
Old 05-30-2020, 02:40 PM   #14
HadesOmega
Veteran
 
HadesOmega's Avatar
 
Barfie Winner 2017

Join Date: Feb 2008
Location: San Jose
Motorcycles: Empulse TT, ZR7, DR650, KLR650, 750 Turbo, Light Bee MX, KLX140L
Name: Merlin
I rode my Empulse up the M10 for a while. I had it with me and charged up to about 65% when I left the track. It wound up turning into an adventure ride because I forgot half the road going to Lett's Lake was dirt. Got to do some electric scrambler action. But yeah the parts near Lett's Lake was where all the burned stuff is. I couldn't even get to the Lake everything was closed in the end.





Great views before the Empulse got dirty




Pictures from the top of Potato Hill. You can start seeing signs of burnt forest.




HadesOmega is offline   Reply With Quote
Old 05-30-2020, 03:42 PM   #15
James
Veteran
 
James's Avatar
 

Join Date: Jul 2003
Location: Hayward
Motorcycles: CT90, YZ-250, TTR-110
Name:
Ha! I saw you, but I was a passenger on a husky 501. A buddy gave me a ride to the top of potato hill to launch my paraglider. I was carrying a bag about the size of me, and he was riding like I wasnt on the back....

James

*edit - I posted a quick clip in the paragliding thread in non-moto.

Last edited by James; 05-30-2020 at 03:44 PM.. Reason: Add
James is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -8. The time now is 03:51 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2021, vBulletin Solutions, Inc.