Power Electronic Control Unit
POWER ECU for KERS Requirements
Technical Description
The power electronics control unit (POWER ECU) serves as an intelligent control of an electric motor in
the motor and alternator operation. The energy for the motor operation is retrieved from an external highvoltage battery, which is re-charged by the energy produced from the alternator operation. With an
efficiency of up to 95%, the POWER ECU is extremely economical. The incidental power dissipation can
be dissipated with hot motor oil up to 90° C.
The control unit POWER ECU, which was developed for motor sports, is very small, light and robust and
therefore is also ideally suited for hybrid drives in series-production vehicles. The POWER ECU does not
only cover the desires and requirements of vehicle construction but is also applicable for the challenging
applications in aerospace, e.g. for activating the starter generator in aero engines or for controlling the
flight control actuators.
The POWER ECU has been designed for electric motors with 2 times 3 phases. Thanks to an intelligent
activation of the phases, the design favours a reduction of the voltage ripple in the high-voltage battery
and so increases the life span of the high-voltage battery.
The weight-optimised and intelligent construction of the POWER ECU ensures optimised cooling and
weight by using materials such as aluminium for the cooling system and load-bearing parts as well as
carbon for the casing.
Thanks to its unique design, the POWER ECU can be optimised specifically to the unique
requirements of each customer.
Technical Data
Features
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Low weight < 3 kg
High performance 60 kW
High power density 20 W/g
Cooling can be integrated into existing cooling systems
Small installation space < 2,5 litres
Security: Conforming to EN61010 standards
Range of Application
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Aerospace

Starter generator for aero engines
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Flight control actuators
Automotive
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Hybrid drives
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Motor sports (KERS)
POWER ECU Data
Parameters
Specification
Nominal voltage
400 V
Nominal current
150 A
Nominal performance
60 kW
Peak voltage
600 V
Peak current
200 A
Degree of efficiency
> 95%
Cooling
Motor oil (max. 90°C)
Weight
< 3kg
Control accuracy
Accuracy
< 1% of the nominal capacity in 1ms
Control time
1ms
Contact
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+49 89 18 96 00 – 61 16
+49 89 18 96 00 – 73 99
product@silver-atena.de
SILVER ATENA Electronic Systems Engineering GmbH  Dachauer Str. 655  80995 Munich – Germany  www.silver-atena.de