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Resize Motors

By default, the motor dynamometer reference application is configured with an 80-kW Flux-Based PMSM motor. Based on desired specifications, you can resize the motor variant for different vehicle applications.

These motor variants are available.

Motor SubsystemVariantDescription
Motor & Inverter Plant

Mapped

Simulate and validate motor system response based on high-level specifications.

Dynamic PMSM

Simulate and validate linear dynamic models based on existing motor details.

Flux-Based PMSM (default)

Simulate and validate nonlinear dynamic models based on existing motor details.

You can use the Virtual Vehicle Composer app to resize your virtual vehicle motor based on high-level specifications. For more information, see Resize Engines and Mapped Motors.

Note

Limit the motor resize ratio for maximum power and torque to less than ten. For greater ratios, resize in steps. For example, to take a motor with 320 kW maximum power and 640 N-m maximum torque, and resize it to 20 kW and 40 N-m:

  • Resize from 320 kW and 640 N-m to 80 kW and 160 N-m

  • Resize from 80 kW and 160 N-m to 20 kW and 40 N-m

To set the variant and resize the motor, use the motor dynamometer reference application. To create and open a working copy of the reference application project, use this command.

autoblkMotDynamometerStart

After you open the reference application, click one of the Resize buttons:

  • For a mapped motor, click Resize Mapped Motor Model. Then, set the desired maximum power, torque, DC link voltage and constant power speed range (CPSR).

  • For a dynamic motor, click Resize Dynamic PMSM and Recalibrate Controller. Then, set the desired maximum power level, DC link voltage, and axial resize factor.

  • For a flux-based motor, click Resize Flux-based PMSM and Recalibrate Controller. Then, set the desired maximum power level, DC link voltage, and axial resize factor.

Click Apply and Resize Motor to resize the motor with your desired specifications. The reference application:

  • Resizes the motor and motor calibration parameters

  • Recalibrates the controller to match the resized motor

  • Saves the motor and controller parameters to the model

Click Plot Characteristics to view characteristics of the new motor.

You can use the variants in other applications, for example, in vehicle projects that require a motor model.

See Also

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