.SpotExamples.d_DrivesDC.DCcharSpeed .SpotExamples.d_DrivesDC.DCcharSpeedDC machine (permanent magnet) torque-speed characteristic.
See for example as a function of phase:
efficiency.eta efficiency machine.motor.w_el angular velocity (el) machine.motor.tau_el torque (el)(right click dcm_pm.motor.w_el and choose Independent variable: w_el).