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Associate
Nov 13, 2025 2:32 AM UTC
Question

HSO Overmodulation

Hello! I saw in the release notes for MCSDK 6.4.0 that there is an "Added new Maximum Modulation Index (MMI) computation compatible for all sensor-less or sensor algorithms." How should I use overmodulation on the HSO?

2 replies

GMA
ST Technical Moderator
Nov 13, 2025 7:24 AM UTC

Hello @WJHuang,

Refer to the Circle limitation chapter of the User Manual documentation available through Workbench tool > About > Documentations > Documentation > User manual tab for the description of the Maximum Modulation Index.
The over-modulation feature is not available with HSO speed sensing.

If you agree with the answer, please accept it by clicking on 'Best answer'.Best regards.GMA
WJHuangAuthor
Associate
Nov 28, 2025 6:18 AM UTC

Thank you!When will HSO speed sensing support overmodulation?