My Electric Motorbike

Show off your E-Scooter or Motorcycle creation here.
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jansevr   1 kW

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Re: My Electric Motorbike

Post by jansevr » Jul 14 2018 10:20am

In regards to the slow acceleration...you can try adjusting the settings for acceleration time under the throttle menu.

Keep this in mind (from the sabvoton manual): The less the “acceleration time” or “deceleration time” is, the faster the throttle will response ,(It is forbidden that the time set over 2000ms).

If you go less than 2000ms the throttle will instantly go to full throttle. Be sure to have the rear wheel suspended off the ground when tuning and testing.

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Dui, ni shuo de dui   100 W

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Re: My Electric Motorbike

Post by Dui, ni shuo de dui » Jul 15 2018 8:43pm

jansevr wrote:
Jul 14 2018 10:20am
In regards to the slow acceleration...you can try adjusting the settings for acceleration time under the throttle menu.

Keep this in mind (from the sabvoton manual): The less the “acceleration time” or “deceleration time” is, the faster the throttle will response ,(It is forbidden that the time set over 2000ms).

If you go less than 2000ms the throttle will instantly go to full throttle. Be sure to have the rear wheel suspended off the ground when tuning and testing.
It doesn't exactly work like that, unfortunately.
This parameter only sets the throttle response time, which means the controller will determine the average value of the throttle potentiometer input by sampling during this time. It just makes the throttle more reactive, but it doesn't help adding more power. I usually set my throttle response time to 50ms both for acceleration and deceleration.

Anyways, the acceleration is not bad at all, it is still way better than a 250cc gas one, just that it lacks a bit of kick from standstill. I think this is a controller issue, sabvotons controller are not programmed to give full power from zero. I just hope there is a clever way to trick the controller to give more power during this phase.

Changing for a smaller diameter wheel is out of the question, the bike would look weird, it would lower its ground clearance and impact handling. But sure, purely speaking about acceleration, it would work. :)

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kebekua   10 mW

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Re: My Electric Motorbike

Post by kebekua » Sep 11 2018 1:12am

If you guys wanna see the performance on the street check out the videos of Dui and I against a 400cc bike.

Soon another video with the Mobipus 72600. We'll need to find a 600cc for that one!


https://www.youtube.com/watch?v=xRTDp5tUqaY

https://www.youtube.com/watch?v=IUS4IMGhe3E

And this one is for whoever said lead acid batteries are good for nothing:

https://www.youtube.com/watch?v=pFSrPVXyVR8
''Power is not a means, it is an end.'' O'Brien, 1984

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eee291   10 kW

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Re: My Electric Motorbike

Post by eee291 » Sep 11 2018 3:02am

And this one is for whoever said lead acid batteries are good for nothing:
Well, that is still a fact.

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kebekua   10 mW

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Re: My Electric Motorbike

Post by kebekua » Sep 11 2018 4:19am

A Chuck Norris kind of fact, yeah
''Power is not a means, it is an end.'' O'Brien, 1984

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armandd   1 W

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Location: Malaysia

Re: My Electric Motorbike

Post by armandd » Sep 12 2018 8:50am

If lead acids are so bad, why is it that millions are still manufactured every day? They are not as bad as some people might think.

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macribs   1 GW

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Re: My Electric Motorbike

Post by macribs » Sep 12 2018 10:25am

Well diesel fuel and and that tar like bunker oil that ships are using are also produced each and every day. That does not make em good for you or me. Same with the diesel engines. Mass produced but still there are better alternatives.

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eee291   10 kW

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Location: Austria, Burgenland: Güssing

Re: My Electric Motorbike

Post by eee291 » Sep 12 2018 11:07am

armandd wrote:
Sep 12 2018 8:50am
If lead acids are so bad, why is it that millions are still manufactured every day? They are not as bad as some people might think.
Lead-acid Batteries are a huge waste. Especially for EVs.

I mean 250 Cycles@100% DOD and only 30-40wh/kg which gets cut in half if you discharge at 1C or greater, it's just laughable.
Also Lead-acid batteries degrade slowly at above 25C. And in Winter, you can consider yourself lucky if you make it to your local Walmart.

The reason they are still made today is because they can be made cheaply. People then buy Lead-acid batteries without even knowing about the shortcomings, only to dispose of them within 2 or so years.

I'm not saying Lead-acid Batteries don't have their uses. But I do feel sorry for people that put them in their EVs.

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Chalo   100 GW

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Re: My Electric Motorbike

Post by Chalo » Sep 12 2018 11:41am

You only have to look at what lead powered electric cars were like, versus what lithium powered electric cars are like, to understand the implications.
This is to express my gratitude to Justin of Grin Technologies for his extraordinary measures to save this forum for the benefit of all.

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Dui, ni shuo de dui   100 W

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Re: My Electric Motorbike

Post by Dui, ni shuo de dui » Sep 12 2018 9:09pm

Hi guys,

Instead of wasting some nice energy to debate about evil SLA vs good Lithium here, what would you say if we used all this brain power to help me mod my controller here instead: viewtopic.php?f=30&t=95846

:wink: :wink:

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Dauntless   100 GW

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Re: My Electric Motorbike

Post by Dauntless » Sep 12 2018 10:54pm

Heavens! It's the arguing SLA's that gets their blood going. Now they are ready for full contact Latin dancing on your controller.
Any sufficiently advanced technology is INDISTINGUISHABLE FROM MAGIC!
- Arthur C. Clarke

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eee291   10 kW

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Re: My Electric Motorbike

Post by eee291 » Sep 13 2018 1:31pm

Dauntless wrote:
Sep 12 2018 10:54pm
Heavens! It's the arguing SLA's that gets their blood going. Now they are ready for full contact Latin dancing on your controller.
You don't know how hard I laughed at this :lol:

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