Search found 676 matches

by zzoing
Nov 14 2018 4:13pm
Forum: E-Vehicles General Discussion
Topic: Self-balancing electric bike
Replies: 23
Views: 1471

Re: Self-balancing electric bike

The three wheel motorbikes like the piaggio seem fun as well. perhaps a fat bike with three wheels would be a new project for a company somewhere.
by zzoing
Nov 14 2018 3:55pm
Forum: E-Vehicles General Discussion
Topic: Find any interesting charging locations?
Replies: 2
Views: 454

Re: Find any interesting charging locations?

Haha, sounds good. I have recharged an ebike on a laundrette building at a supermarket car park, on some bare wires in a carbdoard compressor beside a supermarket, at a plug on the front of a small fire station building, another on the side of the tourist office, at a plug beside a door of a storage...
by zzoing
Nov 09 2018 9:19am
Forum: E-Bike Technical
Topic: Best rear torque arm design/layout?
Replies: 18
Views: 840

Re: Best rear torque arm design/layout?

Good information about Galvanic Corrosion and carbon fiber epoxy on aluminium. That's not a factor if you use a lock and key system to brace the aluminium. It is only a worry if you carbon fiber onto a flat surface like a bond, only as a glue. If you wrap CF around aluminium, it's set in stone. For ...
by zzoing
Nov 09 2018 8:20am
Forum: E-Vehicles General Discussion
Topic: Is lidar the best sensor for autonomous driving cars?
Replies: 3
Views: 249

Is lidar the best sensor for autonomous driving cars?

If we can have very good autonomous driving, we can reduce insurance costs by 10 times if there are 10 times less collisions. Isn't Lidar is a blunt instrument to use for autonomous cars? The billions of dollars of investment in lidar are not expected to bring hands free commuting in any know timefr...
by zzoing
Oct 10 2018 5:43am
Forum: E-Bike Technical
Topic: Best rear torque arm design/layout?
Replies: 18
Views: 840

Re: Best rear torque arm design/layout?

If you want to save time on machining metal, and you want a very tight fit to your custom frame, then you can use carbon fiber. Re-cycle one or two of the torque arms, and just mould the axial end into a carbon fiber blob that you wrap to the piece of the frame that you want. Here's an idea for your...
by zzoing
Oct 06 2018 2:18am
Forum: Motor Technology
Topic: Magnax, new axial flux motor
Replies: 16
Views: 1158

Re: Magnax, new axial flux motor

They should send one to Justin so that he can give us some decent efficiency and power and torque ratings for it. I'd say it can have 2x the torque based on the magnet surface area. Whether that means that it captures twice as much as of the magnetic field is another matter. it must be twice as slow...
by zzoing
Jul 19 2018 10:00am
Forum: E-Bike Non-hub Motor Drives
Topic: Crazy Genius bike design crankshaft-speeds
Replies: 9
Views: 490

Crazy Genius bike design crankshaft-speeds

https://www.youtube.com/watch?v=rgo-yEaXDzA

Cool idea for bikes, the V1 is noisy, i'd bet that it can be made as noisy as a regular derailleur.
by zzoing
Jun 30 2018 4:17am
Forum: E-Bike Technical
Topic: Strange Phase Bug
Replies: 1
Views: 159

Strange Phase Bug

When I leave my bike on all night, and try the throttle, the wheel doesn't know what is backwards and forwards, the motor shudders randomly. It's a sensorless 2016 xlyte controller and c9. When I leave the controller off for an hour, and power it up, it works fine, wheel goes around first time, ride...
by zzoing
Jun 17 2018 2:06pm
Forum: Battery Technology
Topic: Making a cheap power pack for my ebike using chinese 18650 clones suggestions?
Replies: 11
Views: 411

Re: Making a cheap power pack for my ebike using chinese 18650 clones suggestions?

https://endless-sphere.com/forums/viewtopic.php?t=61608 ... to find the page I just write... tumich endless sphere... on google. good seller. I tend to go with panasonic because they are rock solid, I kept some of tumich's batteries charged at 4.2 volts for a year and forgot about them... then I bui...
by zzoing
Jun 17 2018 2:16am
Forum: Battery Technology
Topic: Making a cheap power pack for my ebike using chinese 18650 clones suggestions?
Replies: 11
Views: 411

Re: Making a cheap power pack for my ebike using chinese 18650 clones suggestions?

Its cheaper to buy from tumich here... some good chinese cells cost about 1 usd for 2200. Imr clones. They probably have half lifespan and reliability of pasanobic battries.they will lose rage after 100 cycles by my experiene. Get some tumich listed ones here.
by zzoing
Jun 16 2018 2:44pm
Forum: E-Bike Technical
Topic: Are all IRFB4110 MosFET's the same?
Replies: 1
Views: 186

Are all IRFB4110 MosFET's the same?

I have to buy a new IRFB4110 for an infineon controller, are any of the random ones on eBay ok?

what's the differences? I figure Infineon makes their own versions, what about generic ones?
by zzoing
May 24 2018 3:10am
Forum: Battery Technology
Topic: Thread for new battery breakthrough PR releases
Replies: 1568
Views: 159452

Re: Thread for new battery breakthrough PR releases

It's actually usable for a 2400 watt ebike.

.5C is 6W (=.5*4v*3Ah). although they are recommended for 1C continuous discharge, which is 12W. So, for 290grams, you get 120Watts, and for 6 kilos of them, you get 2400watts, and 2400 Watt-Hours too!!!
by zzoing
May 23 2018 5:59am
Forum: E-Bike General Discussion
Topic: PodRide
Replies: 30
Views: 2402

Re: PodRide

So, the Podride is now funding on Indiegogo and there's another video for it:

https://www.youtube.com/watch?v=4lKq1fGtXFM
by zzoing
May 23 2018 2:54am
Forum: Battery Technology
Topic: Thread for new battery breakthrough PR releases
Replies: 1568
Views: 159452

Re: Thread for new battery breakthrough PR releases

Can you find a price quote? News: Toyota, General Motors, Daimler haven't contracted them... So, there must be an issue with the batteries. Someone can try them in a quadcopter already? Perhaps they are not powerful enough for RC and drones. It's totally usable for a bike the graph states 0.1C charg...
by zzoing
May 14 2018 3:43am
Forum: Battery Technology
Topic: Cordless Tool Conversion
Replies: 27
Views: 5032

Re: Cordless Tool Conversion

Haha, cool thread! I got a hoover for my car. 3.6v nimh, 5$. As new, Black & Decker dust devil. it could barely hoover a grain of rice for 10 minutes. I put in 4x 18650 cells, an Ecig board for a 4.2 lion, and a USB plug. Ok it will take all day to charge the hoover, but it can hoover stones and it ...
by zzoing
May 11 2018 12:55am
Forum: E-Bike Technical
Topic: Turnigy Rotomax 50cc Speed Control Options?
Replies: 2
Views: 313

Re: Turnigy Rotomax 50cc Speed Control Options?

You should post a photo of the motor that is already on the cart, are you the first on the web to mod it?
by zzoing
May 11 2018 12:50am
Forum: E-Bike Technical
Topic: Need help with battery box
Replies: 2
Views: 301

Re: Need help with battery box

Make sure you have a multimeter so you can check polarity of everything if you wire it yourself. Sounds like a good learning project.
by zzoing
May 10 2018 8:35pm
Forum: General Discussion
Topic: All-Axle Grin Hub motor meets Haibike FS RS 27.5
Replies: 67
Views: 7044

Re: All-Axle Grin Hub motor meets Haibike FS RS 27.5

That's a weird axle. Perhaps there is space to fit in some heat pipes through the axle.
by zzoing
May 10 2018 12:12pm
Forum: E-Bike Technical
Topic: Infineon over-voltage fault/Hub MeltDown Incident.
Replies: 1
Views: 193

Re: Grinfineon over-voltage fault/Hub MeltDown Incident.

Infineon Technical:

Here is what I found, please give me your thoughts for what I should test.
by zzoing
May 10 2018 11:20am
Forum: E-Bike Technical
Topic: Infineon over-voltage fault/Hub MeltDown Incident.
Replies: 1
Views: 193

Infineon over-voltage fault/Hub MeltDown Incident.

I cooked an infineon with rough handling, my fault for not using a Thermostat, the error code is flashing three times same as an overvoltage fault, except that the actual fault is that some solder melted when two of the phase wires shorted together (molten motor) and I put power through two shorted ...
by zzoing
May 05 2018 8:33pm
Forum: Battery Technology
Topic: Wanting to buy a 100 18650 batteries
Replies: 5
Views: 540

Re: Wanting to buy a 100 18650 batteries

Because you are in Australia, you have to check out your local australian suppliers. Korea and Japan are your nearest countries which have 18650 factories. best way to use google in Oz: https://www.google.fr/search?num=100&ei=vVruWpT8NMOS6ASuhaCYBg&q=18650+site%3Aau&oq=18650+site%3Aau&gs_l=psy-ab.3....
by zzoing
May 05 2018 8:27pm
Forum: Large EV General Discussion
Topic: 80 new EV models from VW by 2025 !
Replies: 45
Views: 3490

Re: 48 billion dollars of EV batteries

in Berlin on May 3, Diess told investors his company has signed orders for $48 billion worth of batteries, according to a report from Fortune. That’s double the amount touted just a few weeks ago. Coincidentally, $48 billion happens to equal to the market capitalization of Tesla. Volkswagen says it ...
by zzoing
Apr 21 2018 3:21am
Forum: Battery Technology
Topic: Thread for new battery breakthrough PR releases
Replies: 1568
Views: 159452

Re: Thread for new battery breakthrough PR releases

Here's some info's about many lithium battery factories being built in Europe, including a 4 billion euros factory called Northvolt, which is only a theoretical investment group, and some that are already running since 2017. It's pretty good view of the availability of technologies from the press cr...
by zzoing
Apr 10 2018 3:14am
Forum: E-Bike Technical
Topic: Variable Regeneration Voltage Questions.
Replies: 15
Views: 1281

Re: Variable Regeneration Voltage Questions.

So, that's the most technically savvy info from this page from Justin, it's a development surprise with the current Grinfineon which means that fwd/rev throttle can't be implemented through simple wires of the ebrake, only via CA3, and by the different wire schema described above. I haven't had the ...
by zzoing
Apr 05 2018 1:48pm
Forum: E-Bike Technical
Topic: Variable Regeneration Voltage Questions.
Replies: 15
Views: 1281

Re: Variable Regeneration Voltage Questions.

I have had some advice about how to do so from Justin, alot happening: ... this is pretty interesting. It could be that you need to actually short the throttle signal wire of the 6-pin CA plug to Gnd instead of the actual throttle wire, as the throttle input on the controller has a mix of pull-up - ...