VAR.MAP Torque / speed plane e-NVH calculations

MANATEE software e-NVH Variable Speed Solutions
Sub-module VAR.MAP
Function Torque / speed plane e-NVH calculations
Validation ALG_37, ALG_38, ALG_39
See also VAR.TR Transient variable speed e-NVH calculations,
VAR.QS Quasi-static variable speed e-NVH calculations

Objectives

Vibration and noise levels of electric motors depend on the load state and operating speed. In particular, noise levels in traction and braking phase may differ for the same torque level. This module of MANATEE software therefore carries fast e-NVH calculation over full torque/speed plane in four quadrant operation, which is especially useful for EV HEV NVH traction applications.

Description

The modules calls several MANATEE simulations based on input Id/Iq maps to characterize the e-motor NVH behaviour in torque/speed plane on four quadrants (traction / braking / reverse modes), including noise map plots and detailed post processings. It can be combined with ALG.LEA, ALG.LIA and ALG.EVS, ALG.ENS to speed up calculations (using semi analytic NVH models, full map can be obtained in less than one minute of calculation).

Example of noise maps calculated by MANATEE for EV HEV NVH applications
Example of noise maps calculated by MANATEE for EV HEV NVH applications

Graphical post-processing

The complete list of plot commands is available on MANATEE plot commands webpage. The following visualizations are more particularly related to this module:

How-to’s

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