Search found 54 matches

by SaladFish
Oct 03 2017 7:30am
Forum: E-Bike Technical
Topic: Limiting power down to legal levels
Replies: 71
Views: 7343

Re: Limiting power down to legal levels

How about using a creatively hidden reed switch to activate full power using a hidden magnet on your person?



Blue tooth activation would also be good. Perhaps a code could be sent by your phone to the controller each time you turn the bike on.
by SaladFish
Sep 29 2017 6:51pm
Forum: E-Bike Technical
Topic: Limiting power down to legal levels
Replies: 71
Views: 7343

Re: Limiting power down to legal levels

i doubt if they would go through all the trouble to have you head down to a dyno testing centre.... They may set a future date that you must go to a dyno, but if thats the case then you would probably have plenty of time to limit your motor. I would think that just slapping a 250W sticker on it wou...
by SaladFish
Sep 29 2017 7:58am
Forum: E-Bike Technical
Topic: Limiting power down to legal levels
Replies: 71
Views: 7343

Re: Limiting power down to legal levels

How can you configure a controller to limit a motor to <200 watts as measured at the rear wheel? That should be pretty easy by programming the current limit to a lower value. Some pretty simple math should tell you what you need depending on your pack voltage. If you program for 200W input to the c...
by SaladFish
Sep 27 2017 6:45pm
Forum: E-Bike Technical
Topic: Limiting power down to legal levels
Replies: 71
Views: 7343

Re: Limiting power down to legal levels

I have looked into this. The compliance is tested by putting the ebike on a special <1000w dyno. If the power as measured at the rear wheel is above 200w (or 250w for that category) then it fails to comply. The fine is Unregistered $659, uninsured $659 and never had a licence (motorcycle license) $7...
by SaladFish
May 23 2017 4:18am
Forum: Motor Technology
Topic: 48V1500W vs 72V1500W
Replies: 4
Views: 837

Re: 48V1500W vs 72V1500W

a "72v" motor will run fine on 48v, but will run slower than it would on 72v. Within reason, you can use whatever voltage you want on any motor to get the speed you want. Controller voltage rating should match your battery voltage. Some controllers can work with a range of voltages. Controller shou...
by SaladFish
Mar 04 2017 8:33pm
Forum: E-Bike General Discussion
Topic: How do police test compliance of ebike (Australia)
Replies: 115
Views: 12129

Re: How do police test compliance of ebike (Australia)

Your kiddin', right??? No. By such reasoning, bicycles should be freely dispensed by government,... free of registration costs, tire excises, sales tax, inspection fees, even repair costs!!! "We want you healthy! Costs less and you'll be more productive!" If it can be determined that a bicycle will...
by SaladFish
Mar 03 2017 3:26am
Forum: E-Bike General Discussion
Topic: How do police test compliance of ebike (Australia)
Replies: 115
Views: 12129

Re: How do police test compliance of ebike (Australia)

Registration and insurance costs money while bicycle commuting saves money. Taxing someone that saves the government money is counter productive so it won't happen. At least not unless the motoring lobby gains too much power. It is an interesting quirk that it is possible to go 40km per hour with 2...
by SaladFish
Feb 27 2017 8:48pm
Forum: E-Bike General Discussion
Topic: How do police test compliance of ebike (Australia)
Replies: 115
Views: 12129

Re: How do police test compliance of ebike (Australia)

just read through the thread, cant see anywhere mentioned how oz cops can test ebikes on the side of the road, in the EN15194 related documents, they give a method for testing ebikes which involves measuring out a distance along the road ( cant remember what it is), riding the ebike full throttle a...
by SaladFish
Feb 23 2017 12:31am
Forum: E-Bike General Discussion
Topic: How do police test compliance of ebike (Australia)
Replies: 115
Views: 12129

Re: How do police test compliance of ebike (Australia)

Tell me this, you got an ebike with a 1000W hub motor in the back. Its completely covered by pannier bags hanging off the rear rack. Your batteries are camoflauged in what looks like a big water bottle, or inside the pannier bags. Your controller is on the top part of the rear rack. You are a civil...
by SaladFish
Feb 22 2017 6:11pm
Forum: E-Bike General Discussion
Topic: How do police test compliance of ebike (Australia)
Replies: 115
Views: 12129

Re: How do police test compliance of ebike (Australia)

Errr?.. So is it a secret who these dyno testing folk are ?... S&R PRO PERFORMANCE BIKES AND DYNO TUNING When will the authorities do a dyno test on an ebike? Never They just as soon give you a ticket and go on their way to the donut shop. NSW Australia is a anti bicycle nanny state and police have...
by SaladFish
Feb 20 2017 8:51pm
Forum: E-Bike General Discussion
Topic: How do police test compliance of ebike (Australia)
Replies: 115
Views: 12129

Re: How do police test compliance of ebike (Australia)

Breaking news! I found the company that performed the testing and gave them a call. They mention that they have a dynometer for under 1kw output which would be more accurate than something for a motorcycle. $80 was quoted for testing of an ebike. Peace of mind at only $80, that's pretty good. Here ...
by SaladFish
Oct 25 2016 10:05pm
Forum: E-Bike General Discussion
Topic: How do police test compliance of ebike (Australia)
Replies: 115
Views: 12129

Re: How do police test compliance of ebike (Australia)

I've just been down to the local police station and they say the bike is confiscated and tested on a dyno by an engineer and a charge is laid if it is over 200 watt. So 200 watt is at the wheel. From here I need to get access dyno so I can accurately configure an ebike to be under 200 watt at the wh...
by SaladFish
Oct 25 2016 7:19pm
Forum: E-Bike General Discussion
Topic: How do police test compliance of ebike (Australia)
Replies: 115
Views: 12129

Re: How do police test compliance of ebike (Australia)

Re the OP in this thread... "Police test compliance"? Why, because operator was misbehaving like any "normal" pedestrian or vehicle operator? Just curious... "Driving an unregistered and uninsured vehicle is an offence attracting on the spot infringement notice fines of over $1200 ($607 for being u...
by SaladFish
Oct 21 2016 11:24pm
Forum: E-Bike General Discussion
Topic: How do police test compliance of ebike (Australia)
Replies: 115
Views: 12129

Re: How do police test compliance of ebike (Australia)

Apparently RMS have in the past used a motorcycle dynomometer to test a pedlec and some petrol power assist bikes for a bogus report. http://roadsafety.transport.nsw.gov.au/downloads/motorised-bicycle-tests.pdf Interestingly they used full throttle on the petrol assist bicycles and gentle pedaling o...
by SaladFish
Oct 14 2016 6:43pm
Forum: E-Bike General Discussion
Topic: How do police test compliance of ebike (Australia)
Replies: 115
Views: 12129

How do police test compliance of ebike (Australia)

I sent the police an email but they are not responding. Can anyone tell me how the police test the compliance of an ebike. Specifically the 200watt limit on throttle only ebikes. Do they put the ebike wheel on a special ebike dyno and actuate the throttle? Do they impound the bike and require you to...
by SaladFish
Aug 30 2016 4:35am
Forum: E-vents
Topic: (AUS) Hunter Valley EV festival August
Replies: 7
Views: 2393

Re: (AUS) Hunter Valley EV festival August

I went to this event, it was pretty interesting. The 1500 event looks pretty scary considering the power and speed involved with so many tight turns. Definitely suited to experienced motorcycle racers.
by SaladFish
Jul 18 2016 11:54pm
Forum: E-Bike General Discussion
Topic: Aussie 200 Watt Limit Thread
Replies: 1184
Views: 96920

Re: Aussie 200 Watt Limit Thread

So if I'm reading this right, the EU is looking to abolish the crappy 250W 25kph limit and introduce 2 new categories. Category A replaces the old E-Bike law and allows up to 1KW, but still limited to 25hph. Category B allows up to 4KW and 45kph, but they call this a moped category, so not sure wha...
by SaladFish
Mar 23 2016 12:33am
Forum: Motor Technology
Topic: Choosing efficient motor + battery combination
Replies: 27
Views: 2518

Re: Choosing efficient motor + battery combination

You really need to gear for 55 kph top speed. 700c wheels so, that's around 450 rpm wheel speed. If you could get 10:1 in a single stage for a shaft speed of around 4500 rpm, the Astro 3210 would still be pretty efficient... That would put the peak efficiency torque for it at the right level for cr...
by SaladFish
Mar 13 2016 9:20pm
Forum: E-Bike General Discussion
Topic: How much power does a bicycle need to be "safe" in traffic
Replies: 19
Views: 1475

How much power does a bicycle need to be "safe" in traffic

Bicyclists are usually run off the road and killed by impatient and negligent drivers that have to overtake these inadequate road users. If I consider my motorcycle it accelerates fast enough not to hinder all but the most lead footed of drivers. I wonder how much power does an ebike need to be "saf...
by SaladFish
Feb 26 2016 12:36am
Forum: E-Scooter and Motorcycle General Discussion
Topic: First EV build - inputs needed
Replies: 14
Views: 1437

Re: First EV build - inputs needed

I want to do this as well but laws can make it difficult.

Attached is a spreadsheet to get you started thinking about battery packs.
by SaladFish
Feb 24 2016 1:31am
Forum: Motor Technology
Topic: Choosing efficient motor + battery combination
Replies: 27
Views: 2518

Re: Choosing efficient motor + battery combination

Hi SaladFish, We've competed in this competition for the past 3 years flying all the way over from Western Australia. Last year we came 3rd in the race and set the Pole Lap. Check out our bike build on Facebook if you like. We won't be competing this year so happy to help you. It's a hard competiti...
by SaladFish
Feb 22 2016 5:04pm
Forum: Motor Technology
Topic: Choosing efficient motor + battery combination
Replies: 27
Views: 2518

Re: Choosing efficient motor + battery combination

Miles wrote:Something like this, then...
Yep, something like that.
by SaladFish
Feb 22 2016 4:55am
Forum: Motor Technology
Topic: Choosing efficient motor + battery combination
Replies: 27
Views: 2518

Re: Choosing efficient motor + battery combination

Miles wrote:You need a CdA of around 0.25 to achieve 45 kph with 350 Watts (output)
Whoops I just realised I put the decimal point in the wrong place.

0.1 - 0.15 CdA.
by SaladFish
Feb 22 2016 4:22am
Forum: Motor Technology
Topic: Choosing efficient motor + battery combination
Replies: 27
Views: 2518

Re: Choosing efficient motor + battery combination

Miles wrote:
SaladFish wrote:
Miles wrote:Something doesn't add up there.... Where does your 1-1.5 figure come from?
That's the secret sauce (fairing).
I'm saying the figure is far too high! :)
Haha I think so too, there are some dastardly rules that I am trying work within.
by SaladFish
Feb 22 2016 3:57am
Forum: Motor Technology
Topic: Choosing efficient motor + battery combination
Replies: 27
Views: 2518

Re: Choosing efficient motor + battery combination

Something doesn't add up there.... Where does your 1-1.5 figure come from? That's the secret sauce (fairing). If I can find a motor and battery pack at least as good as my competitors I should stand a good chance if I don't make a big mistake. This is the competition: https://endless-sphere.com/for...