(英文版)网站产品页大图_18

Motor Types and Technical Features

ETM series motor is an ultra-thin in-wheel drive motor for vehicles. It is based on the core technology of our innovative high energy density, new permanent-magnet radial flux disk-type motor, and is developed for new energy vehicles, including engineering vehicles, special vehicles and other applications. 

The product has the following features: 
 - Ultra-high energy density, total volumetric specific power up to 14.8 kW/L, effective torque density up to 22 N.m/kg 
 - Advantages of ultra-thin, ultra-light and ultra-small volume, the axial length and weight of the motor are only 50%–         60% of that of the market automotive drive motor 
 - Energy density index of the motor over the international or national guiding index, which is at the international               leading level

Product Applications

All Electric Digging Robot
Unmanned Tractor

Concrete Mixer

Straddle Carrier

2019110815445669070
Coal Boring Machine

环卫车
Sanitation Truck
无人轨道交通
Unmanned Railway Cars

Technical Specifications

Motor typePermanent magnet synchronous motor
Voltage classDriver DC bus voltage:336VDC,540VDC
Work dutyS9
Cooling
IC8W7,water-cooling,45% pure water+55% glycol aqueous solution
ProtectionIP67
InsulationF
VibrationR
Thermal protectorPT1000 or KTY84
Ambient temperature-15℃-40℃(Altitude≤1000m)
EncoderStandard:resolver

Model Description

Example: ETM21B-365
ETM

Motor serial No.
21

Frame No.:17/21/25
B

Core length No.:A\B\C
3

Rated/maxmum speed(r/min): ×1000,3000
6

Maximum speed(r/min): ×1000,6000
5

Working voltage of DC bus: 3 - 336VDC; 5 - 540VDC

User Interface

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                                            ETM17/ETM21                                                                     ETM25
① User wiring
Frame No.Power cable connector
Bayonet
range
Thermal protector
specifcation
Thermal protector cable
connector
Bayonet
range
ETM17M20*1.5,3 pcsФ6~12PT1000 or KTY84M12*1.5,1 pcsФ4~8
ETM21M16*1.5,3 pcsФ6~12PT1000 or KTY84M12*1.5,1 pcsФ4~8
ETM25M25*1.5,3 pcsФ13~18PT1000 or KTY84M12*1.5,1 pcsФ4~8
② Encoder
矢量智能对象

Encoder specification
Encoder aviation connector model corresponding table
Seven-pole reluctance encoder J37×U9737
SC-SMV1-PA02C
Pin No.
12345610
Assignment
REF+
REF-
COS+
COS-
SIN+
SIN-
Shielding conductor
Water inlet parameters
Frame No.
Specification of water pipe joint
- Cooling medium:
  55% glycol aqueous solution, particles less than 300 μm,
  conductivity less than 10 μS/cm
- Minimum cooling water flow: 16 L/min-20 L/min
- Differential pressure under minimum cooling water flow:0.27 bar
- Maximum withstand water pressure: 0.5 MPa
ETM17
18-G1/2
ETM21
18-G1/2
ETM25
25-G3/4

ETM17 technical parameters

Motor
code
Motor type
Battery
working
voltage
Rated
power
Peak
power*
Rated
torque
Peal
torque*
Rated
speed
Maximum
speed
Rated
current
Peak
current
Maximum
efficiency
Motor
weight
VDC
kW
kW
Nm
Nm
r/min
r/min
Arms
Arms
%
kg
1721
ETM17A-363
336
20
45
64
140
3000
6000
78
186
94.5
23
1722
ETM17A-365
540
20
45
64
140
3000
6000
51
121
94.5
1723
ETM17B-363
336
28
68
90
215
3000
6000
109
285
95.0
28
1724
ETM17B-365
540
28
68
90
215
3000
6000
71
185
95.0
Note: * represents peak value of the parameters, lasting for 60s
Characteristic curve
资源 10mdpi
英文版ETM产品页_01
资源 12mdpi
Motor spindle: internal spline INT 34Z*1m*30P*7H 
GB/T 3478.1~2
Installation method (facing motor flange face) 
  - Standard: B5, main leads on the left +  water                             pipe joint downward 
  - Optional: B5, main leads on the right +  water                          pipe joint downward B5, main leads                          at the top +  water pipe joint downward

ETM21 technical parameters

Motor
code
Motor type
Battery
working
voltage
Rated
power
Peak
power*
Rated
torque
Peal
torque*
Rated
speed
Maximum
speed
Rated
current
Peak
current
Maximum
efficiency
Motor
weight
VDC
kW
kW
Nm
Nm
r/min
r/min
Arms
Arms
%
kg
1731
ETM21B-353
336
35
88
110
268
3000
5000
142
390
95.5
33
1732
ETM21B-355
540
35
88
110
268
3000
5000
90
246
95.5
1733
ETM21C-353
336
46
123
145
345
3000
5000
170
446
95.5
42
1734
ETM21C-355
540
46
123
145
345
3000
5000
113
295
95.5
Note: * represents peak value of the parameters, lasting for 60s
Characteristic curve
资源 14mdpi
英文版ETM产品页_02
Frame No.
LL
L1
ETM21B
118
84
ETM21C
135
84

Motor spindle: internal spline INT 22Z*1.5m*30P*7H 
GB/T 3478.1~2
Installation method (facing motor flange face) 
  - Standard: B5, main leads on the left +  water                             pipe joint downward 
  - Optional: B5, main leads on the right +  water                          pipe joint downward B5, main leads                          at the top +  water pipe joint downward

ETM25 technical parameters

Motor
code
Motor type
Battery
working
voltage
Rated
power
Peak
power*
Rated
torque
Peal
torque*
Rated
speed
Maximum
speed
Rated
current
Peak
current
Maximum
efficiency
Motor
weight
VDC
kW
kW
Nm
Nm
r/min
r/min
Arms
Arms
%
kg
1744
ETM25B-245
540
60
135
220
450
2600
4600
131
283
96.0
49
1743
ETM25C-245
540
73
165
268
550
2600
4600
176
380
96.0
Note: * represents peak value of the parameters, lasting for 60s
Characteristic curve
资源 17mdpi
英文版ETM产品页_03
Frame No.
LL
L1
ETM25B
143
90
ETM25C
158
105

Motor spindle: internal spline INT 30Z*1.5m*30P*7H 
GB/T 3478.1~2
Installation method (facing motor flange face) 
  - Standard: B5, main leads on the left +  water                             pipe joint downward 
  - Optional: B5, main leads on the right +  water                          pipe joint downward B5, main leads                          at the top +  water pipe joint downward