Needs some input…BH Emotion Neo Jumper

LTZ470 · Apr 30, 2013

To my old eyes it looks as if the 350W 36V Neo Jumper rear wheel can be changed out with 48V Neo Nitro rear wheel and also the 48V Controller can be had for same price as 36V Controller, so after a Wheel Change to 500W and a 48V Controller change and batteries being compatible this would be a expensive be considerable increase in power at the gain of weight, my only thought is that the Dapu 350W Geared Motor is actually more fit for purpose than the 500W Gearless Motor…anyway food for thought…
Originals here:
http://acwilli.smugmug.com/Other/Neo-Jumper/29175848_TFHHFQ#!i=2485382397&k=pj2k3rz&lb=1&s=O
http://acwilli.smugmug.com/Other/Neo-Jumper/29175848_TFHHFQ#!i=2485382809&k=L8b29qj&lb=1&s=O

dogman dan · Apr 30, 2013

I'm not quite sure what you are fishing for, but I'm sure you could run the same 36v motor on 48v if you wished to. Still need a battery change though.

What's best to do would depend entirely on what you wanted to do with the bike.

LTZ470 · Apr 30, 2013

Yes, that was also mentioned in another forum DM and is a great idea…it seems the 48V Controller is available along with the 48V battery and they are a direct swap for the 36V Controller and Battery on the 36V Neo Jumper…this would over clock the Dapu 350W motor, but by how much and what would be the longevity cost?…the 48V Rear Wheel motor (DD) is a direct swap as well but it probably wouldn't be as suited for off road and hills as well as the geared Dapu 350W? So I am really thinking of the 48V over the 350W geared motor…this would give it plenty of power and considerable more distance would it not? 36V 9AH vs 48V 9AH….
Pretty sure this is the Neo Jumper motor down the page a bit here:
http://www.topsecretev.com/blog.php?categories=Taipei Cycle show 2012 highlights

marci · Jun 3, 2013

Hi @ All

Where I can order some parts for my Neo Cross like the pricelist above? (which dealer deliver some parts to germany?)

(I need Battery, Charger and Controller plastic cover)

Full Details:
Dealers Book with Repair Instructions spain:
http://www.mapzone.spb.ru/catalogs/ebikes_bh_2013.pdf

english:
http://www.podilates.com/uploads/default/files//DEALER_BOOK_EASY_MOTION_EN_low_res.pdf

Greetings

Marci

ecowheelz · Jun 3, 2013

LTZ470 said:
So I am really thinking of the 48V over the 350W geared motor…this would give it plenty of power and considerable more distance would it not? 36V 9AH vs 48V 9AH…

A 48V/9AH battery WILL NOT provide more range than a 36V/9AH battery. Range will be similar, and if anything, you're likely to get less range with a 48V battery (if you're running at top speed). What the 48V battery WILL PROVIDE is more torque (for faster takeoffs and better hill climbing) -- and higher overall top speeds. Typically, a 36V battery will give you about 19-21mph, where a 48V battery will give you about 25-28mph...

d8veh · Jun 4, 2013

The motors are all standard. Why not just change the motor for a higher RPM one?

pjgold · Jun 4, 2013

I have the Cross version of the Neo range however mine has the Bafang CST motor I know that motor is sold as either 36v or 48v.
I can't find any details on the Dupu motor though.

Melbourne · Jun 4, 2013

d8veh said:
The motors are all standard. Why not just change the motor for a higher RPM one?

Does this look like a potential replacement motor 328rpm but 500w... the fourth photo of the motor look like 5-6 pin male connector that fit the Neo Emotion could do the trick.. the 328 rpm could increase speed to ~40kph assuming there is no speed limiter.

http://www.bmsbattery.com/ebike-kits/347-bafang-350watts500watts-bpm-motor-e-bike-kit.html

d8veh · Jun 5, 2013

Melbourne said:
d8veh said:

The motors are all standard. Why not just change the motor for a higher RPM one?

Click to expand...

Does this look like a potential replacement motor 328rpm but 500w... the fourth photo of the motor look like 5-6 pin male connector that fit the Neo Emotion could do the trick.. the 328 rpm could increase speed to ~40kph assuming there is no speed limiter.

http://www.bmsbattery.com/ebike-kits/347-bafang-350watts500watts-bpm-motor-e-bike-kit.html

The 270rpm 500w CST would also be a nice upgrade. It gives about 22mph at 36v. If you have the same type of connector, you need to check whether you have 9 pins (sensored) or 3 pins (sensorless). Some motors now have internal torque sensoes, so if you've got any other number of pins, it won't be so straight-forward, but still possible.

pjgold · Aug 17, 2013

After a bit more digging around I found that the motor has an extra wire, BH are using an integrated speed sensor option available on the motors they are using.
Its the white wire in the 6 pin plug, I confirmed this gently removing the wire from the plug and running the motor. No speed is displayed without this wire connected, bad news is with out the speed reading it limited the assist to the 6 km/h walking pace limit.
The signal from this wire is 6 pulses of 4.2v per revolution.

This means if you swap a motor for a higher rpm wind if it doesn't have an internal speed sensor no go.

d8veh · Aug 18, 2013

In that case, it would be worth an email to Speedict. Their Speedict Venus intercepts the signal from the Bosch system and re-transmits it at a lower speed. The Bosch one pulses at wheel speed (once per rotation), but the Speedict might be able to work at any pulse speed because it uses a microprocessor. With the Speedict, you get all the other useful battery monitoring system.

Somebody needs to try the different motors with alternative controllers to see what the no-load motor speeds are.

speedrabbit · Sep 27, 2013

Some interesting results from someone on the whirlpool forums (Australia). Sounds like at no point was he able to increase the real max speed of the BH Neo Cross (DAPU motor) past 25 kph despite successful manipulation of the speedo readings.

So good news and bad news..

Good news is that the white wire does in fact control the speedo.

After installing the speedo fixer (SPEEDODRD), I tested it with these settings.

-50% – bike heaps slower , power cuts out early. Speedo actually looks same as GPS speed.
-33% – bit faster, but still slower than stock. Speedo slower than GPS.
-20% – bit faster again, but still slower than stock. Speedo slower than GPS.

So I almost gave up.. Then just for lols I went the other way.

+50% – bike is same as stock, speedo displays 150% of speed (!!!)
+100% – bike is same as stock, speedo is accurate (!)

The hypothesis PJ proposed is somewhat correct, that the white wire can be manipulated to change speed.

The problem is that power output is not controlled by that white cable (!)

I got no errors in the process, and the SPEEDODRD device was clearly doing its job.

So it's back to the drawing board (again)

Needs some input…BH Emotion Neo Jumper

LTZ470

10 mW

dogman dan

1 PW

LTZ470

10 mW

marci

10 mW

ecowheelz

100 W

d8veh

1 GW

pjgold

100 W

Melbourne

100 W

d8veh

1 GW

pjgold

100 W

d8veh

1 GW

speedrabbit

1 µW

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