M70 Automotive In-Hub Motor - Magnet-Motor GmbH: Military Vehicles

M70
Automotive In-Hub Motor
M a g n e t - M o t o r
TYPICAL APPLICATIONS
Direct wheel drives
Add-on hybrids
Light military vehicles
Agricultural equipment
Industrial high-torque drives
The M70 motor is an electric machine optimized for hybrid
electric vehicle propulsion. Based upon weight and volume,
the M70 motor has unmatched performance in both power and
torque, making it an ideal candidate as an integrated wheel
motor for automobiles. The M70 design is tailored as an in-hub
wheel motor, with a large central bore providing sufficient area
for a conventional disk brake or a planetary gear set (for extra
high torque applications). For a typical automotive application
two M70 motors are all that is needed to give full traction
performance. Four M70 wheel motors make the vehicle fit for
extreme conditions.
The M70 motor is a permanent magnet, inner-rotor machine,
featuring highly efficient water cooling and is perfectly
adapted for precise control via electronic inverters. The M70 is
well suited for all propulsion systems that require high torque
and high power.
KEY FEATURES
Continuous
Power:
Maximum
50 kW
Torque: 1050 Nm
Speed: 2200 rpm
Dimensions: Ø 437mm x 134 mm
Weight: 34 kg
ADVANTAGES
Permanent magnet
excitation
Inner rotor design
Simple mechanical and
electrical design:
- no rotating electric parts
- robust coils
Operated by 3-phase current
inverter
Integrated high-resolution
resolver
High efficiency
Maintenance-free
Precise control to zero
speed

M70
Automotive In-Hub Motor
TECHNICAL DATA*
MECHANICAL DATA
Maximum torque (inverter S31) 1050 Nm
Continuous torque 500 Nm
Peak power @ 750 V 100 kW
Continuous power 50 kW
Rated speed 2200 rpm
ELECTRICAL DATA
Rated voltage 750 V
Maximum voltage 800 V
Number of phases 3
GENERAL
Operational temperature
range (with cooling) -32 to +120 °C
Level of protection IP 68
Axial length 134 mm
Total axial length
including connection area 234 mm
Outer diameter 437 mm
Inner free diameter 320 mm
Volume 9 dm 3
Volume including
connection area 10 dm 3
Weight 34 kg
Shock resistance 50 g
COOLING
Cooling medium water / glycol 50/50
Nominal flow rate 4.2 l/min
Rated inlet temperature 75 °C
Pressure drop 0.3 bar
Specifications subject to change without notice. Data, including specifications, contained within this document are summary in nature and
subject to change at any time without notice at L-3 Communications’ discretion. Call for latest revision. All brand names and product names
referenced are trademarks, registered trademarks, or trade names of their respective holders. 5/11
M a g n e t - M o t o r
DIMENSIONS
M70 Motor
85 mm
*All values are subject to verification in the appropriate system environment
133.5 mm
233.6 mm
Ø 437 mm
L-3 Magnet-Motor GmbH
Petersbrunner Strasse 2
82319 Starnberg, Germany
Tel: +49.8151.262.0
Fax: +49.8151.262.250
www.L-3com.com/MM
Ø 51.6 mm
Ø 331.8 mm