Simga2N Traction Advanced Manual– V1.3 Page 8 (166) ©2021 DMC GmbH Herten Germany
2 Product overview
After the success of the SigmaDrive Controller range, DMC has developed a new controller range, specially designed to
control AC induction and permanent magnet synchronous motors PMAC (PMS/IPM) motors, running on nominal
battery voltages in the range of 24V up to 120V, at nominal powers up to 30kW and peak powers up to 60kW.
The power board design fundamentals are similar to the previous Sigmadrive design, combining superior heat sinking
of components and connections with unmatched vibration protection. The mechanical design is improved to IP65 and
we incorporated the industry standard 35 way AMP-seal connector.
Nonetheless we had to leave the single PCB design philosophy in favour of a separate logic PCB to utilise state of the
Art 32bit microcontroller technology that enables us to offer features required for today’s vehicle control. A completely
new motor control module is introduced, using flux vector motor control for both AC induction and PMACs.
New Features on Simga2Nare for example fully automated tuning of AC induction motors and PMS IPM without the
need for manual fine tuning or using a PC. The advanced auto tuning algorithms allow motor tuning even if the motor
is installed on the vehicle. Just entering the motor name plate data into the controller tuning menu is enough to obtain
optimal tuning results. Even when the motor name plate data is unknown it is possible to get the system running
smoothly!
On PMS and IPM we introduce automated motor sensor setup for sin/cos absolute position encoders and hall sensors,
which significantly eases the production of PMAC motors, eliminating the costly need for adjusting sensor offsets.
Vehicle constructers now have the choice to use control via CAN or use the flexibility of software selectable active high
or active low inputs. Optimized interfacing with battery management systems completes the Simga2Ncontroller range,
allowing limiting battery current Via CAN, especially useful for vehicles using Lithium batteries.
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