Golden Motors MP3 and gearing
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Golden Motors MP3 and gearing
Postby OldNick » Tue Oct 30, 2012 10:13 pm
I own one now and I am sure I will find out, but it's easier not to make silly mistakes if you know what you are expecting, I guess....I am just a scared weird little guy....
Thanks for any help
Nick
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Re: Golden Motors MP3 and gearing
Postby s3312345 » Wed Oct 31, 2012 12:12 pm
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Re: Golden Motors MP3 and gearing
Postby OldNick » Wed Oct 31, 2012 1:11 pm
So I am assuming that it just tells the motor "someone is pedalling". Be interesting to see how that works out...how it all works together. Until I see it in action, I am not sure it's that great. Ah well...a reason to get out there and get a wheel on a bike!
Nick
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Re: Golden Motors MP3 and gearing
Postby Joeblake » Wed Oct 31, 2012 1:31 pm
I think it's bad enough having to worry about setting up the crank rotation angle to gain maximum applied force without having to also worry about making allowance for delayed electric power. In my view the electric power should assist the pedaling rather electric power relying on pedal power.
Joe
Bertrand Russell
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Re: Golden Motors MP3 and gearing
Postby OldNick » Wed Oct 31, 2012 1:52 pm
Under the new rules, AFAICS, you are not allowed to _have_ a throttle if the bike is over 200W (that extra watts, out to 250W, has been handed over like pulling teeth) . You have to just use pedal sensing. Now _there_ I can't imagine how that works, when the bike has maybe 3 front rings and 6 rear sprockets. Actually responding to geared speed and pressure would start to get very sophisticated. I reckon that extra 50W is going to make DIY a lot tougher.
All will be revealed when I get off my lazy bum...
Nick
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Re: Golden Motors MP3 and gearing
Postby Joeblake » Wed Oct 31, 2012 1:59 pm
Joe
Bertrand Russell
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Re: Golden Motors MP3 and gearing
Postby OldNick » Wed Oct 31, 2012 2:42 pm
Nick
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Re: Golden Motors MP3 and gearing
Postby Joeblake » Wed Oct 31, 2012 2:52 pm
OldNick wrote:... if we behave reasonably, the law will be in theory not fact for the huge majority.
Nick
Joe
Bertrand Russell
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Re: Golden Motors MP3 and gearing
Postby OldNick » Wed Oct 31, 2012 3:01 pm
As a cyclist and dog owner I get really angry at both when they interact and just assume they are right and yell and shout and shake fists. But the bikers who tear through the free-dog area really get me. They almost seem to be looking for trouble, just to get angry about. Same with powered PB's. We have a few around there that probably do 40-50KPH, petrol powered:noisy smelly and way too fast. They just get everybody a bad name.
BTW damn shame about having that lovely hill and your batteries all topped up. You are missing out on a freeby!
Nick
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Re: Golden Motors MP3 and gearing
Postby OldNick » Wed Oct 31, 2012 3:06 pm
Nick
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Re: Golden Motors MP3 and gearing
Postby Joeblake » Wed Oct 31, 2012 3:17 pm
It only takes me about 2-3 minutes to descend, so I wouldn't get much regen anyhow.OldNick wrote:
BTW damn shame about having that lovely hill and your batteries all topped up. You are missing out on a freeby!
Nick
(This is me going down Gooseberry Hill Road, which is faster but shorter.)
http://www.youtube.com/watch?v=ZRAoa5tzR1I" onclick="window.open(this.href);return false;
I've actually lots of freeby since I park my trikes on my back patio which has got a transparent section of roof, and the sun shines on the panels for probably 5-6 hours a day, if I'm careful to move the trikes. But usually the batteries are fully charged so I don't need to worry about that. If find myself having to use one of the trikes two days in a row, and the batteries have not fully recovered from the previous day, I can plug the battery charger into my domestic power which is running off my roof top PVs so it's all solar powered regardless.
Joe
Bertrand Russell
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Re: Golden Motors MP3 and gearing
Postby OldNick » Wed Oct 31, 2012 4:16 pm
I had a schoolmate who lived in Kalamunda for a while and came down the hill every day to school. He had a speedo on his bike and believe it or not used to get to 45mph....work it out!
I can see that regen braking is only going to give a little bit, but as I say it cost me nothing to try.
Nick
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Re: Golden Motors MP3 and gearing
Postby Joeblake » Wed Oct 31, 2012 4:24 pm
http://www.youtube.com/watch?feature=pl ... ujdfdEl23s" onclick="window.open(this.href);return false;
It's much slower but takes a lot longer.
Before they put the roundabout in I once peaked down there (Gooseberry Hill Rd) at 79 kph on my bent bicycle. Whoooooooooooooo.
Joe
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Re: Golden Motors MP3 and gearing
Postby OldNick » Wed Oct 31, 2012 4:41 pm
I was driving my light bus down there one day and some idiot was tearing UP the hill on a motorbike. Not nice. Words were said but he just ignored me.
Nick
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Re: Golden Motors MP3 and gearing
Postby Joeblake » Wed Oct 31, 2012 4:51 pm
No, the motor was not used anywhere. When I do you can really hear it.
Joe
Bertrand Russell
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Re: Golden Motors MP3 and gearing
Postby OldNick » Wed Oct 31, 2012 5:48 pm
Still got to organise a couple of 6-sprocket free wheels for the kit. I forgot to order those. Unfortunately the LBS is usually $$ and while I want to support them, they have given me a bum steer a couple of times. So I will order and wait.
Nick
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Re: Golden Motors MP3 and gearing
Postby John Lewis » Thu Nov 01, 2012 1:23 am
It had a throttle control that only worked at walking pace. Probably to help when wheeling the bike.
I mounted the confounded thing, pedalled hard and it took off like a scared rabbit. Bolted clean away ( in the words of Patterson) and damn near bucked me off.
Had I been behind a car or another rider I'd have hit them. The ting must have sensed pedal force or something. It certainly didn't start gently. Give me a hand throttle any day.
John
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Re: Golden Motors MP3 and gearing
Postby OldNick » Thu Nov 01, 2012 7:09 am
When you took off did you have the throttle full on? Maybe the pedal sensor just says "pedalling" and applies whatever the throttle has dialled in, so you use the throttle to set the the power and then just pedal to activate. . Just a thought Need to get my sprocket clusters and sort this out. I have been trying to download the manual for this damn thing and it keeps crashing.
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Re: Golden Motors MP3 and gearing
Postby John Lewis » Thu Nov 01, 2012 10:48 pm
The throttle has no effect above a walk. I was not using the throttle at all when I took off to ride. Next time the owner visits I'll take a good look and post my findings.
John
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Re: Golden Motors MP3 and gearing
Postby OldNick » Thu Nov 01, 2012 11:22 pm
Seriously although this thread is about the Golden Motor hub, the more user input the better.
For instance, on the forum _dedicated _ to GM motors (they are nearly as big as the GM we all know so well ) there is a guru who hates the pedal assist. Apparently it just TOOK OFF as soon as you started pedalling....full throttle...sound familiar? That may have changed.
I really need to put in some hours on this before I unleash my wife onto a driven bike. She has mechanical issues (she is BY NO MEANS dumb, but machines are meant to WORK Properly)...I know it's sad on both sides . and I am starting to see that this can get a bit geeky.
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