Because this is, and probably will ever be the #1 question asked, and the corresponding FAQ entry got by far the most hits, here it is: The dedicated Making the N1s faster post.
First, it’s not for the faint hearted: If you have two left hands and 10 thumbs, if you’re scared about loosing warranty and/or getting into trouble with your local authorities then don’t do it.
Still it can be informative how it’s been done over in China 😉
As there is no (known) way to directly “patch” the original NIU controller (in China they call it “CPU”), a different route was taken making the N1s faster: Add a second controller – often called a ‘dual controller setup‘ – and have him talking to the motor while the original controller faces the rest of the system and keeps everybody happy 😉
Depending on the 2nd controller used, the new limits for the three modes will be 20, 43 and ~70km/h…
Now that you know how it works in theory here’s the shopping list. You’ll need:
- A 2nd brushless DC motor controller. Most people tend to prefer the model 72152 (max 60km/h) or 72182 (70km/h) from Ling Bo.
- A ‘Y-cable’, spitting the signals from the main system to both controllers (and back)
- (optional) a mounting-plate for both controllers
- Courage, some handyman talent and about 30-60 minutes time
All righty… still sure about making the N1s faster? So let’s have a look at the parts one by one:
El Cheffe… the controller.
As mentioned in the shopping list, most tuners use controllers from Ling Bo, namely the models 72152 and 72182 – or LBMC 072152/072182 as they’re officially called. They are no unknown players in the market, you might have met them looking into an Unu scooter for example.
While the 72152 is good for ~60km/h the 72182 will squeeze out up to 70km/h.
There are many models around, so this for example is the 72182:
While just a bunch of boring cables, it’s a very important part of the job. Some plugs are so special, you won’t get them anywhere in Europe.
Also pictured the (optional) RS232-to-USB converter for programming the LingBo controller.
Some Chinese how-tos completely work without one of those. But I’d say it’s safer/cleaner to use one.
It’s been placed where the original NIU controller was originally mounted and offers screw-holes for a side-by-side mounting of both controllers…
The whole cabling looks something like this:
The loose/tangling cable contains the Hall lines:
- Red, black, blue, green, yellow: to the 72152/72182 controller
- Black, blue, green, yellow, to the NIU controller
So both do their work, but the motor is only connected to the LingBo controller.
Both controllers are also connected to a small PCB featuring 3 ports, namely P1, P2, P3:
- P1: connects 72152/72182 controller
- P2: connects to the bus on the scooter
- p3: connects the original NIU controller
It’s hard to embed videos from Chinese portals… so all I can do for now offering links to some crappy how-to videos:
(having some Michael Jackson, too :-/)
another one, controllers side-by-side with sticky tape:
http://video.tudou.com/v/453758197.html (currently broken 🙁 )
Ling Bo hacking/Software
Finally – and this is work in progress – you can program the Lingbo controller pretty freely. That said: You can kill things pretty easy, too.
As mentioned above, you can connect a PC to the controller through USB (or even Bluetooth!).
The data line driver and debugging software can be downloaded here:
This archive contains some PDF docs (different controller) but also the Windows .exe, USB drivers and an Android apk to use the BT connection for the fearless beneath you guys – But like the romans said: cave canem!
More to come… stay tuned 😉