BAFANG 8FUN User manual

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E-BIKE
CENTRAL MOTOR DRIVE SYSTEM
(SYSTEM TYPE: BDS01)
USER’S GUIDE
Version: V1.0
SUZHOU BAFANG ELECTRIC MOTOR SCIENCE-TECHNOLOGY CO.,LTD
Dillenger Electric Bikes

1
Suzhou Bafang Electric Motor Science- Technology Co., Ltd is
located in Suzhou Industrial Park, at the center of Yangtze River Delta,
endowed with convenient transportation for both international and
domestic business. Bafang company was founded in 2003, which is a
high-tech enterprise of electric drive system, combining design, R&D,
manufacturing and sales.
We have more than 260 employees, more than 35 senior
engineers in R & D department, be able to accept of various
challenging projects. Our well-established quality control system,
advanced motor and controller production, and testing equipment, as
well as high-level R&D and testing center enable us to deliver high
quality products consistently. Now our annual production capacity
reaches 1,000,000 sets.
Your dream, our goal!
Company Introduction

2
System composition

3

4
Catalog
1.1 Scope of application and numbering rule------------5
1.2 Material and waterproof grade--------------------------5
1.3 Main technical parameters-------------------------------6
1.4 Installation diagram----------------------------------------6
1.5 Installation procedure-------------------------------------8
2.1 Material and waterproof grade------------------------14
2.2 Dimension--------------------------------------------------14
2.3Installationinstruction-----------------------------------15
2.4 Button definition------------------------------------------16
2.5 Display Area-----------------------------------------------16
2.6 Power on---------------------------------------------------17
2.7 Adjust--------------------------------------------------------18
2.8 Parameter setting----------------------------------------21
2.9 Power off---------------------------------------------------23
2.10 Malfunction Code---------------------------------------23
3.1 Installation dimension---------------------------------25
3.2 Installation-------------------------------------------------25
4 System connection diagram---------------------------27
5 Notes---------------------------------------------------------28
6 After service & warranty-------------------------------29
7 Packing list-------------------------------------------------30
Central motor
1
Display
2
Speed detecting
sensor 3
System connection
diagram 4
Notes 5
After service &
warranty 6
Packing list 7

5
★Can be installed on standard bike frame easily.
★High starting torque, Max torque≥80Nm, good performance on
climbing.
★Double clutch is used on drive unit, more safety.
★Speed sensor and torque sensor can be applied, controller
integrated.
★High efficiency, low consumption, long travel mileage.
Countermark serial number on motor casing as following:
BBS01 36V 250W
15A 25km/h
13010001
1. “BBS01”: motor type(speed sensor)；”BBS02”: motor type(speed
sensor with coaster brake)；”BBT": motor type (torque sensor)
2. “36V”: rated voltage; 250W: rated power.
3. “15A”: limited current, 25km/h: max speed.
4. “1301”: production date, produced in January of 2013.
5. “0001”: serial number.
Die-cast aluminum electrophoresis black treatment, working
environment temperature:-25℃-55℃, waterproof grade: IP65.
1 Central motor
1.1 Scope of application and numbering rule
1.2 Material and waterproof grade

6
Above parameters as the default parameters, can be customized
according to customer requirements.
Voltage DC36V
Limit current 15A
Limit speed 25KM/H
Motor weight 3.7KG
Chain wheel tooth 46T
no-load value Rated value Max value
current
（A）
speed
（RPM）
Output
power
（W）
speed
（RPM）
efficiency
（%）
torq
ue
（N
m）
curre
nt
（A）
MAX
torque
MAX
efficiency
（%）
≤1.0 83±5 250 78±5 ≥80% ≥30 ≤9 ≥80N.m ≥80%
1.4 Installation diagram
1.3 Main technical parameters

7

8
1. Open the package and take out the drive unit and accessories;
And check the specification whether it is correct.
2. Fix the chain wheel on drive unit with 5pcs screw M5*10, (see
picture 1), then fix chain cover on chain wheel with 5pcs screw
ST3.9.
Drive unit
fixing plate
chain wheel
Self-tapping screw 5 x ST3.9
screw 2x M6*12
Nut M33 nut
chain cover
left crank
1.5 Installation procedure
screw 5 x M5*10
right crank

9
Picture1
3. Fix the drive unit axle tube on frame bottom bracket (see picture
2,picture 3)
Picture 2
drive unit axle tube
higher surface
5 x M5*10
Left right
lower surface

10
Picture3
4. The surface with teeth of fixing plate towards inside, then fix the
plate on drive unit with 2pcs M6*10.(see picture 4,picture 5)
Picture4 Picture5
the surface with teeth
of fixing plate
ensure thread of axle tube extend
bottom bracket more than 10mm
2xM6 nut Outside surface
without teeth

11
5. Hold the drive unit near to bicycle fork, force less than 5KG, tight 1st
nut M33 onto axle tube with force:30-40N.m (see picture 6)
Picture 6
6. Fix 2nd nut M33 onto axle tube, tightening force:30-40N.m(see picture
7)
Picture 7
7.Fix the left crank on the bike with M8 inner hexagon screw. Tightening
force:35-40N.m (see picture 8)
M33 nut
M33 nut

12
Picture 8
8.Fix the right crank on the bike with M8 inner hexagon screw. Tightening
force:35-40N.m (see picture 9)
Picture 9
9.Connect all cables for battery, display, speed detecting sensor and so
on (see picture 10-12)
M8 nut
left crank
right crank
M8 nut

13
Water proof connector
for battery
Water proof
connector for display
Water proof
connector for speed
detectin
g
senso
r

14
Display’s casing use black/silver ABS materials, display window use
acrylic white transparent material.
Working temperature of display: - 20℃- 80℃.
Waterproof grade: IP65.
Ultrasonic is used for welding casing and display window.
2.1 Material and waterproof grade
2.2 Dimension (unit: mm)
2C950 Display

15
Fix the display onto the handlebar and adjust to an appropriate visual
angle, use a screw to fix the carrier onto bottom casing, then plug
display connector with controller connectors, that’s all.
3.3 用户设置概述
2.3 Installation instruction
Bottom casing
cable
Fixing carrier
Fixing slot
cable
Fixing carrier
M3 screw

16
C950 display is equipped with integrated buttons. The three buttons
are installed on the left side. The shape and location is as below:
System power switch
Mode selection, together with for setting
back light switch, speed, mileage switch
Display area includes battery capacity, riding mode, riding speed,
single riding distance, total riding distance, and malfunction code of
the electronic control system. Display area is as below：
2.4 Button definition
2.5 Display Area

17
Mode 1：walking assistant mode
Mode 2：economic mode
Mode 3：sports mode
Mode 4：power mode
First open the electric vehicle battery power.
Then press to open system power（display below black font when
power on）
2.6 Power on

18
press and choose favorite mode（refer to 2.7.1）
When e-bike power on, default mode is economic mode, press
0.5s to select mode, economic mode, sports mode and powerful
mode will be cyclic in order as following:
economic mode
sports mode
power mode
2.7 Adjustment
2.7.1 Mode selection

19
Hold to enter walking assistant mode. The e-bike will go on at a
uniform speed below 6 KM/H. Release , the e-bike goes back to
previous state, interface is as below:
Walking assistant mode
Warning：walking assistant function can only be used when the user is
pushing the e-bike. Please don’t use this function during riding.
When the surrounding light is not enough or in the evening,turn on the
backlight. Hold 0.5s to switch on the backlight. Hold 0.5s
again to switch off the backlight.
When the battery capacity is overvoltage, the four battery segments
are all lighted and the battery display frame will flash. When the
2.7.2 Walking Assistant
2.7.3 Backlight turn On/Off
2.7.4 Electric capacity display