SuperSigma2 AM PMS
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V1.5.6 17-1-2020
Page 63 (97)
©2019 DMC GmbH Herten Germany
6
PMS Motor Auto Tuning
The SuperSigma2 is capable of performing auto tuning of the motor parameters and, on PMS models, it also does auto-
setup of several motor feedback sensors (Sin/Cos, Hall sensors and Resolvers).
The auto tuning only needs a basic set of parameters to be entered. After initiating the auto tuning, the motor will spin:
it is therefore important for the motor to have the possibility to spin freely. This reflects on traction and pump in this
way:
•
For
traction
the vehicle must be lifted such that the wheels can rotate freely.
•
For
pump
the motor must be able to rotate freely (unloaded).
The auto tuning takes about 2 minutes to complete.
After a successful auto tuning, all the parameters in the motor setup and motor advanced menus will have new values.
It is possible to modify several parameters in the PMS Autotune setup menu after the autotune has been completed,
but in that case a recalculation must be performed. Please read the next section for more details.
Parameters in the advanced menu are for indication only and cannot be changed manually.
6.1
Setting up auto tuning
The auto tuning algorithm needs a basic set of parameters in order to get the best results. Usually these values are
printed on the motor name plate or provided on a datasheet. This basic set consists of the following parameters:
Auto Tuning Parameter
Brief description
Number of motor poles
Set the number of poles
Sensor technology
Choose analogue Sin/Cos sensor or Hall sensors
Sensor encoder supply voltage
Choose 5 volt or 12 volt sensor supply
Reverse sensor reading
Try set to 1 if auto tuning diagnostics return an error 6
Reverse motor direction
Try set to 1 if auto tuning diagnostics return an error 6 and motor direction is
reversed (or counter clock wise)
Nominal Battery Voltage
Set the nominal battery voltage
Nominal RMS motor current for
AUTOTUNING
Set the nominal motor current FOR AUTOTUNING
(suggested 1/3 of motor continuous current)
Maximum RMS motor current
Set the maximum required motor current
Back e.m.f. constant
Set the Ke voltage constant (motor rms voltage (phase to phase) per 1000rpm)
(if Autotuning Type selected to 0)
Motor phase to phase inductance
Set the motor inductance in
micro henry (µH)
(if Autotuning Type selected to
0)
Maximum demagnetizing current
If field weakening is required, enter the maximum allowed motor current in
field weakening. Set to 1 to disable. To high values will damage the motor
magnets. Consult motor manufacture first!
Maximum desired motor frequency
Set the maximum required motor frequency
•
Traction controller auto tuning: THE TRACTION WHEELS MUST BE OF THE GROUND
•
Pump controller auto tuning: THE PUMP MOTOR MUST BE ABLE TO SPIN UNLOADED
