Freegen Explained, Q&A Session With Justin and the Inventors
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- Опубліковано 1 жов 2024
- This is a slightly edited re-upload of the livestream question and answer session that followed the release premiere of the Freegen Explained video here:
• Freegen Explained
We've simply overlayed the actual questions on the screen as the youtube live chat relay isn't the best.
Hopefully it will be priced so everyone can afford it. License it to all the big players.
Guys are from israel, it won’t be cheap for sure
I hope you get good seals so this will work for my salty rainy winter days. I am not using derailers because they last only 2 years max.
Is it possible to hook it up to a separate thumb throttle so that you don't have to interact with your standard braking system at all?
Well the crux of the design is to connect a disc brake rotor to the gear carrier, now when you're freewheeling that disc rotates and then you can brake on it. This provides a 'clutch' to bypass the freewheeling. So a brake-throttle as you propose would have to brake on that disc.
I suppose you could have a small lever for the freegen system and then have a normal brake lever that uses rim brakes on the same wheel.
My impression is that software in the controller (controller adapter) is going to have to be very sophisticated. This will be difficult for another vendor (Chinese or otherwise) to effectively duplicate. My original Honda Insight (the 1999 version) had a graphical power meter that indicated how much regen power was going into (green) or battery power being taken out (red) of the battery. I used it optimize my driving pattern to be more economical.
On Average how much can regen add to battery life or a rough estimate on avg?
We used to say 6-8% but with fully proportional control that goes to full braking like this it's really more like 10% just with stop and go riding in the city. If you have long strethches with no stopping and no hills then it is worse, and you can get 20% or more in hilly regions especially if you ride cargo bike. See
ua-cam.com/video/gYCj4asp9pE/v-deo.html
For more details on that.
There is also a geared hub motor with two different ratios. It works with two freewheels and alternating the direction the actual motor spins and probably the freewheels change if the planet carrier can move ot not. I wonder if those technologies could be combined. That would be the ultimate motor!
On my cargo bike I really need the low speed torque, but I want the low speed efficiency, assist untill legal limit and efficient freewheel over the legal limit (as well as easily riding on pedal power, when motor isn't needed). In Germany it's the 250W, 25kph limits.
Okay, with my current cargo bike it would work well (one of four wheels), but for my next one could be great. Longtails have plenty of braking potential on the rear wheel for slowing and speed control and the normal front brake would be the safer one. (Never is a failsafe mechanism as save as no additional mechanism at all.)
Sinc disc brakes are a requirement for this technology, and not every bike comes with disc brakes, can you make torque arms with disc caliper mounting points a factory option once you bring this to market?
Yes exactly, this was discussed at some length in this very video.
Seems like it looses one half of the brake pad wear advantage with this system compared to direct drive regen system. Is that correct?
The brake pad wear should be 10-20 times better than no regen. At the super low RPM that the disc spins there is almost no heat buildup like you normally have and way less energy that the pads are dissipating. But we do need to fully quantify that. But yes, in a conventional direct drive regen system there is zero brake engagement at all.
just realized it's gonna require modification of the half of the motor shell that laces to the wheel, so for those who don't want to lace their own wheel it's gonna be a new wheel + motor time
Pretty exciting, looking forward to seeing the final product
How do you feel about hobbyists modding freegen onto their hub motors for personal use?
That is totally fine and highly encouraged! Just be sure you have a good mechanical brake on the other wheel during all the development testing of course.
Why nobody speech about this teck during summaries of eurobike?
Where you there?
Yup, lots of people in the know came to check it out and go for test spins, but it's still a little too out there for mainstream bike/ebike press to appreciate.
Can we imagine a mid-mounted motor with an integrated disc brake with this system ?
I'm sure THIS is the future. Maybe the disc could even be the front plateau.
There's something dodgy going on here I watched this video yesterday but it's been resubmitted for me to watch 5 hours ago and I don't have the time to watch it twice. This is a case for moulder and skully. ❤😂😅😂😅🎉🎉🎉🎉🎉
I'm just curious just how many investors have already come forward?
Are you thinking about possibly making an adapter plate for a bafang 1000Watt geared hub? It's my motor of choice in very common on the market so if you were going to make a replacement side cover for a motor that would make this more accessible for more people I would think. I mean even if you had to swap the axle and side plate I think it would be well worth it. And I think speaking from a volume perspective you would make more money that way.
You're not there yet with a custom motor, you also need a custom controller to provide regen while just keeping the brake rotor spinning. So it wouldn't be an easy swap for Bafang systems anyway, that cuts down majorly on the potential market so I don't think they'll give high priority to modding existing motors.
Velomobiles?
If they have the needed wheel mount. (Many are mounted only from one side.) But a good ABS would be very important in a tadpole configuration.
@@PsyKeks Given that velos usually have a setup that does that majority of braking with drum brakes it could be a bit odd to think about, but from an engineering perspective the required stuff is already there. As for ABS, it would be grand, but they do just fine without it now.