Feedforward control of multiphase permanent magnet direct current motor drives
AssigneeSteering Solutions IP Holding Corporation
InventorPrerit Pramod
Life of this patent
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Abstract
Systems and methods, for controlling an output torque of a permanent magnet direct current (PMDC) machine includes a PMDC motor that includes a plurality of winding sets and a controller. The PMDC motor is configured to generate the output torque. The controller is configured to: determine, for a first winding set of the PMDC motor, a first voltage command based on a first input torque command signal and a back-EMF drop voltage of the first winding set; determine, for a second winding set of the PMDC motor, a second voltage command based on a second input torque command signal; and selectively control the PMDC motor according to the first voltage command and the second voltage command.
Claims20
A system for controlling an output torque of a permanent magnet direct current (PMDC) machine, comprising:
- a PMDC motor configured to generate the output torque, the PMDC motor including a plurality of winding sets;
- and
- a controller configured to:
- determine, for a first winding set of the PMDC motor, a first voltage command based on a first input torque command signal and a back-EMF drop voltage of the first winding set;
- determine, for a second winding set of the PMDC motor, a second voltage command based on a second input torque command signal;
- and
- selectively control the PMDC motor according to the first voltage command and the second voltage command.
A controller for controlling an output torque of a multiphase permanent magnet direct current (PMDC) motor, the controller configured to:
- determine, for a first winding set of the multiphase PMDC motor, a first voltage command based on a first input torque command signal and a back-EMF drop voltage of the first winding set;
- determine, for a second winding set of the multiphase PMDC motor, a second voltage command based on a second input torque command signal;
- and
- selectively control the multiphase PMDC motor according to the first voltage command and the second voltage command.
A method for controlling an output torque of a multiphase permanent magnet direct current (PMDC) motor, the method comprising:
- determining, for a first winding set of the multiphase PMDC motor, a first voltage command based on a first input torque command signal and a back-EMF drop voltage of the first winding set;
- determining, for a second winding set of the multiphase PMDC motor, a second voltage command based on a second input torque command signal;
- and
- selectively controlling the multiphase PMDC motor according to the first voltage command and the second voltage command.
Dependencies are inferred from the claim text.