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1/14/2021 RMS PM Hardware User Manual 4 of 54
the specifications for this product and that it meets international safety standards when
used in accordance with the instructions in this Manual.
2. Functional Overview:
The PM controller family is intended as a traction controller for EV and HEV drive
systems, and includes both the motor control function and a rudimentary vehicle
controller strategy in the same box. The motor control is a torque commanded, vector
control technology has been used on AC Induction and PM Synchronous motors in
many applications.
The RM100 controller family is intended for the same type of EV/HEV applications
however it has a much more limited set of inputs and outputs. The limited set of I/O
prevents it from being properly used in the VSM mode where analog and digital inputs
are used to control the operation of the inverter. The RM100 controller is intended for
applications where CAN communications is used to control the controller.
The motor control subsystem firmware is mated to a vehicle controller firmware
implemented in the DSP controller. This vehicle controller subsystem handles the
driver interface (accel and decel / brake pedal inputs, Fwd/Rev controls, etc) and the
vehicle interface (power sequencing, built in test, fault handling and safety issues). It is
essentially a state machine in front of the motor controller firmware with a defined
interface between the two software processes.
By default, out of the box the parameters are set up in Torque Control Mode, with
default motor parameters loaded. The parameters must be changed to match the load
motor and operating characteristics before running for the first time. These parameters
personalize the drive to the motor and the vehicle.
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