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    Electric X project - Petrol enhanced battery-electric bike.

    I don't think it really matters a lot - that's just another engine. From the description in the article, it seems they are planning on using it for small vehicles and handheld garden appliances, in which case, it's just a bolt-on to my Gen. Anything with the same flange will bolt right up in...
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    Electric X project - Petrol enhanced battery-electric bike.

    Hi Mark, Thanks for that - I found a few pictures of bikes that had started down this path - Most gave up before the end though due to the various problems - Weight of the generator was one, but I did find people who had started to build their own generator the way I did, and I contacted them...
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    Electric X project - Petrol enhanced battery-electric bike.

    Hi all, Thanks for the comments - To be honest, I have no idea where to start marketing it or selling it or anything like that - Also, it's still under development and the next phase is widespread testing under other conditions to learn what is required to be useful as a product. At this...
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    Electric X project - Petrol enhanced battery-electric bike.

    A quick update - The new gen is working great - Currently on the third generation ( what a pun! ) of technology, has been simplified and strengthened substantially - Measured economy now exceeds 180 mpg petrol/electric and I can get over 150 mph just from petrol on normal roads ( all my prior...
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    recharging ~120V battery system on the fly

    To the OP - I've been developing a small generator for bicycles - current weight is under 10 pounds, maximum DC output is 1000w and currently it's built for 24v, but could be modified easily to 36 or 48v without physical changes... It's pretty efficient - I'm getting around 180 mpg economy with...
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    2WD project

    I have to admit, I was thinking the same - how expensive can a cheap 49cc scooter be... I guess I never factored the other costs into the situation either. Actually, kind of sad that an electric bike is the cheaper way to go - but have you checked local laws to make sure you can do what you're...
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    Aussie 200 Watt Limit Thread

    Thanks for posting that - it's of significant concern to e-bike riders too - remember that the basis he is trying to ban petrol bikes on is that 200w petrol bicycles can travel at "dangerous speeds" that bicycles aren't designed to handle... Not a good thing for any of us, since 200w...
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    2WD project

    Ahh, I can understand about those kinds of motivations... I don't think what you're attempting without experience is all that safe and I'll probably read about you in the papers won't I ? Anyway, I agree with earlier comments - Unless you're going over something soft and want to stop the wheel...
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    Aussie 200 Watt Limit Thread

    Do you have any further details/links to this? Thanks David
  10. C

    Aussie 200 Watt Limit Thread

    The old rule ( 200w ) was for petrol bikes - Electrics came much later and you're right that most can't make it within the 200w limit ( I have one, but it took me a while to figure out how to set a maximum power exactly. I start at 125w and boost beyond that with power control ). The problem is...
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    Aussie 200 Watt Limit Thread

    Just an update - WA has now changed it's laws to allow 250w Pedelec's in WA, however, it's also gone and put a 250w maximum output on the laws, without reference to the standard, so it's quite likely that some Pedelecs wouldn't actually comply under the law even though they may comply with...
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    Brushed Controller Help

    Just to add to the info above, if you count the number of wires coming out of the motor - 2 thick wires = brushed. 3 thick wires = brushless. 3 thick wires and 5 thin wires = brushless with position sensor. This will tell you if you need a brushed or a brushless motor. Anyway, you've...
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    Interesting outcomes using voltage boosters - Turbo for bike

    Ahh, telecommunications use - That makes sense. I've ordered a new booster to try that has digital controller so I can set the output exactly for voltage and current. These cost around $30ea so a little more expensive. But they claim 400w and have two coils, so I think they're balanced at...
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    Electric X project - Petrol enhanced battery-electric bike.

    An update - I have begun work on the Mk II generator - Weight is now down around 10 lbs for the motor/generator together ( About 4.5Kg ) and it's brushless - Triple-fan forced airflow ( front fan missing in image - PTO visible ) and it runs at lower RPM - so even quieter. The generator is a 3kW...
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    Show Us Your Homemade Battery Housing

    I guess it's been posted here recently, so it's probably not a surprise, but I 3D printed my housing to make a series of braces, that are held in place with heavy-duty nylon straps ( cable ties ). The result is a well supported battery housing that uses the battery structures themselves and...
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    Working On A Project - Referred Here By another forum

    I would think that the electric/gas question would be solved by the factors of range and availability to charge. If it was just a question of usability, electric wins hands down. Anyway, it may not be suitable as it's still in development, but here's a bridged solution -...
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    Interesting outcomes using voltage boosters - Turbo for bike

    There's no reason I suppose that you couldn't just use the motor controller to generate the signals and rebuild the drive section to take whatever voltage/current you wanted. Such would just need some decent FETs and heatsinking - And you could run off of any voltage you wanted to - either...
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    Interesting outcomes using voltage boosters - Turbo for bike

    Fair enough, and valid concerns, however I have to say I'm surprised by the testing, which has shown the booster to be quite a viable unit. Keep in mind I have 24v of 100A capable batteries - 2400w maximum output and I'm using up to 15A reliably and continuously. Lead Acid works well for my...
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    Interesting outcomes using voltage boosters - Turbo for bike

    Because a) Total heat output from the device won't exceed 10w... And I can't feel any heat buildup at all. b) 36v means using expensive batteries, which are not needed, and I would still need a down-converter to run at 200w @ 30v c) All modes of failure of down converting would be illegal in...
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    Interesting outcomes using voltage boosters - Turbo for bike

    Ow, kinda cruel - :shock: I'd criticize, but you're right :oops: - I'd better make sure the wiring is fixed up before I go riding, especially on ANZAC day... Wouldn't want to end up at the wrong end of a cop with bad intel. I haven't printed the cover yet - I'll assembled that tonight and...
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    Interesting outcomes using voltage boosters - Turbo for bike

    Hi All, Just thought I'd share something - I've been experimenting with voltage boosters with some interesting outcomes. First the background. Due to some momentary stupidity, I managed to convince myself that if I got a 48v 500w brushless hub motor and ran it at 24v, I'd get around 250w...
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    Aussie 200 Watt Limit Thread

    Thermal equilibrium as defined by the manufacturer, which is probably the temperature it gets to when run continuously at the stated maximum power output. Probably when it's around 250w, they just measure the temperature and say "That's it, that's the conditions under which we measure it...
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    Aussie 200 Watt Limit Thread

    You know, being a cop can be kind of boring - so hopefully they just think your bike is cool :) I think purpose-built electric bikes are generally something most cops would find interesting too. Like exotic cars. Hopefully his peeved sneer was indicative that he wished he had such a bike :wink...
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    Aussie 200 Watt Limit Thread

    Hmmm, I think you're confused there - It's not just about "rated" - It's also about what it's actually producing, and you can measure it at the wheel or at the motor, with appropriate consideration to drivetrain losses. The standard covers the aspects of e-bikes a little better than you may...
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    Aussie 200 Watt Limit Thread

    Not quite - You can just ride it 20 meters after warming it up at 80% power for 5 minutes and measure it as per the alternative tests, or you can put it on a dyno and allow for losses as part of the standard. There's more than one way to skin that cat - :) These tests can be done out in the...
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