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AAAC 76C

Large Member
Location
LIVING THE DREAM
Well I looked up Eddy Current Brakes and got this:
The braking force of an eddy current brake is exactly proportional to the velocity V, so it acts similar to viscous friction in a liquid. When the conductive sheet is stationary, the magnetic field through each part of it is constant, not changing with time, so no eddy currents are induced, and there is no force between the magnet and the conductor. Thus an eddy current brake has no holding force.
So it looks like BKools will create a higher resistance at a higher speed of rotation of the flywheel = the speed of the roller which is your ground speed.

Couldn't leave it there so I took the covers off of my Turbo unscrewed the moving magnet electric servo and magnets and wound the magnets fully in by hand and refitted them. Got on the bike and put it in my 34/27 and started pedling.
As expected the resistance at very low revs was next to nothing but it didn't take me long to get up to a cadence that I would not be able to sustain (but it was not that high).
Not sure what that tells us though but none the less I learnt a bit about magnetic breaking today as I first assumed it was all to do with attraction and therefore not velocity dependant.
What also crossed my mind is if your flwheel was back to front or the conductive ring had not been fitted the magnets would not create resistance and therefore you would probably max out at the 1200 Watts which is probably the limitation of the BSim algorithmn.
 
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BILL S

Guru
Location
London
Hi Guys. New to this. Upgraded my old trainer to a Tacx Genius so can now use Bkool. Have signed up for the UK Leagues and rode stage 11 the other day. Username Scott G. Unfortunately it has come back with a failed classification attempt on the grounds of Low Velocity, Lost signal and Coherent weight....No idea what any of this means. This the place where I can get some help? Thanks.
That's you in the mtn goat league now Scott.
 

Goldwolfie

Veteran
Location
Chesterfield
It's the 5% penalty that forces me to ride every stage ... I might be slow, but I know that those who don't ride a stage will always have a worse time than me :rofl::tongue::dance:

Me to Whorty, I haven't missed a Chain Gang or Moose Stage since I joined this setup.

I might finish at the back on most stages, but I usually end up about halfway in the final league standings. The wife thinks I need to get fitter, so you can guess which list I show her when I'm pushing my case - you don't have to explain every detail ^_^
 

BILL S

Guru
Location
London
Couldn't leave it there so I took the covers off of my Turbo unscrewed the moving magnet electric servo and magnets and wound the magnets fully in by hand and refitted them. Got on the bike and put it in my 34/27 and started pedling.
As expected the resistance at very low revs was next to nothing but it didn't take me long to get up to a cadence that I would not be able to sustain (but it was not that high).
Not sure what that tells us though but none the less I learnt a bit about magnetic breaking today as I first assumed it was all to do with attraction and therefore not velocity dependant.
What also crossed my mind is if your flwheel was back to front or the conductive ring had not been fitted the magnets would not create resistance and therefore you would probably max out at the 1200 Watts which is probably the limitation of the BSim algorithmn.

Are you subconsciously hoping you break it so you have to go out and buy a nice new pro unit? ;)
 
@bert1971, I saw an email about a post you made but I can't see the post? To answer the question in the email notification, the current league is made up of real rides imported from Strava, hence they have the name of the ride on Strava. The first route is one I do with my son, Liam, hence the name. I will try and give better descriptions of rides in the future :okay:
@bert1971, I saw an email about a post you made but I can't see the post? To answer the question in the email notification, the current league is made up of real rides imported from Strava, hence they have the name of the ride on Strava. The first route is one I do with my son, Liam, hence the name. I will try and give better descriptions of rides in the future :okay:

Totally my mistake mate once I'd written I then realised my mistake!
I thought I had completed the wrong course but I hadn't
Was a good start to the month for an old boy like me really enjoyed it. I will try to get back from work early enough Thursday to join in.
Thanks
 

IrishAl

** Full Time Pro **
Location
N.Ireland
Rob, You are not missing anything. I take a good look at the league results and that was Gareths first league ride. I told him that the ride was too quick for the power/weight and I asked if he could check everything to confirm that all the settings were correct. I did wonder if it were related to his unit being a Classic2 but I thought there were a few of us with classics that were performing as expected. Again it was a slope related issue but we never did get it fixed. Unfortunately Gareth didn't do many more league rides. I think he did get bkool to dial into his unit to do a diagnostic but they said there was nothing wrong. I think he gave up with us unfortunately.

Gareth is also a cat 1 racer so in fairness his effort looked / looks like a reasonable time compared to a slow coach like mine. :smile:
 

BILL S

Guru
Location
London
Gareth is also a cat 1 racer so in fairness his effort looked / looks like a reasonable time compared to a slow coach like mine. :smile:

Having seen you in action Al I can't understand how I have ever beaten you on the flat let alone up a hill. You just took 2 minutes out of me up Coll de Bracons but I'm happy with that considering the power difference:smile:.
As for Gareth, maybe you can ask him if he'll come back and race the league and we can see if there is still an anomaly in the ride stats.
 

Baigu

Regular
I won't be able to take part in the upcoming races since my trainer broke before Christmas. It's been shipped back for repairs. Hopefully it won't take too long!
 

JLaw

Veteran
Provo Canyon looks good for the Moose. There's a point where it looks like you're going to fly off into the air as you return to the main road shortly after passing our cabin; it's visually interesting but doesn't do anything to the feel of the ride. The 19% grades are thankfully short and there's just enough retrogrades to recover slightly. There's one point where the spectators are up on the hillside which is amusing. Knowing I'd be riding a lot this week, I kept my effort low again, so I doubt anyone will actually chase my ghost, but he'll be lumbering up the hill for your amusement.

Funny, I think I was within ~30 seconds of yesterday's ride. Same summit from different approaches, both right around 3000ft of climbing.

Tomorrow Millcreek, which ought to be a bit easier.
 
Totally my mistake mate once I'd written I then realised my mistake!
I thought I had completed the wrong course but I hadn't
Was a good start to the month for an old boy like me really enjoyed it. I will try to get back from work early enough Thursday to join in.
Thanks
Kipster, not sure if I'm asking the right person but my attempt last night hasn't been registered in the league? Any ideas?
 

RickB

professional procrastinator
Location
Norn Iron
Kipster, not sure if I'm asking the right person but my attempt last night hasn't been registered in the league? Any ideas?
I assume this is the stage 1 ride in the chaingang? No rides requiring approval currently. :sad: Did you select ride from the league or challenge someone else?
 

RickB

professional procrastinator
Location
Norn Iron
I won't be able to take part in the upcoming races since my trainer broke before Christmas. It's been shipped back for repairs. Hopefully it won't take too long!
Sorry to hear that Baigu.

Hope they sort it swiftly for you .
 
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