US 2026/0280457 A1 · ELECTRIC MOTOR CURRENT CONTROL FOR TORQUE RIPPLE SUPPRESSION BASED ON DATA MAP FOR CAE MODEL

Abstract

A motor control system and method for an electrified vehicle involve a computer-aided engineering (CAE) computing system external to the electrified vehicle that is configured to generate a plurality of quadrature current maps for a plurality of Fourier frequencies corresponding to a plurality of torque ripples, respectively, during operation of an electric motor of the electrified vehicle, wherein each quadrature current map defines quadrature currents for attenuating a torque ripple at a particular Fourier frequency, and a control system of the electrified vehicle that is configured to receive, from the CAE computing system, the plurality of quadrature current maps, store, at a memory, the plurality of quadrature current maps, utilize the plurality of quadrature current maps to determine desired quadrature currents for operation of the electric motor, and control the electric motor using the desired quadrature currents thereby attenuating the torque ripples.

Claims18

Dependent claims

A motor control system for an electrified vehicle, the motor control system comprising:

a computer-aided engineering (CAE) computing system external to the electrified vehicle that is configured to generate a plurality of quadrature current maps for a plurality of Fourier frequencies corresponding to a plurality of torque ripples, respectively, during operation of an electric motor of the electrified vehicle, wherein each quadrature current map defines quadrature currents for attenuating a torque ripple at a particular Fourier frequency;
and
a control system of the electrified vehicle that is configured to:
receive, from the CAE computing system, the plurality of quadrature current maps;
store, at a memory, the plurality of quadrature current maps;
utilize the plurality of quadrature current maps to determine desired quadrature currents for operation of the electric motor;
and
control the electric motor using the desired quadrature currents thereby attenuating the torque ripples.

5 more elements

A motor control method for an electrified vehicle, the motor control method comprising:

generating, by a computer-aided engineering (CAE) computing system external to the electrified vehicle, a plurality of quadrature current maps for a plurality of Fourier frequencies corresponding to a plurality of torque ripples, respectively, during operation of an electric motor of the electrified vehicle, wherein each quadrature current map defines quadrature currents for attenuating a torque ripple at a particular Fourier frequency;
receiving, by a control system of the electrified vehicle and from the CAE computing system, the plurality of quadrature current maps;
storing, by the control system and at a memory, the plurality of quadrature current maps;
utilizing, by the control system, the plurality of quadrature current maps to determine desired quadrature currents for operation of the electric motor;
and
controlling, by the control system, the electric motor using the desired quadrature currents thereby attenuating the torque ripples.

3 more elements

Dependencies are inferred from the claim text.

Electric motor current control for torque ripple suppression based on data map for cae model

Life of this patent

Electric motor current control for torque ripple suppression based on data map for cae model

Life of this patent

Abstract

Claims18