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fix(open loop): store the signed shaft velocity in angleOpenloop() - #581

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stijncarelsbergh:fix/focmotor-velocity
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simplefoc:devfrom
stijncarelsbergh:fix/focmotor-velocity

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fix(open loop): store the signed shaft velocity in angleOpenloop()

angleOpenloop() moves in both directions but always stored a positive
shaft_velocity, while velocityOpenloop() stores the signed value. Anything using
shaft_velocity (monitoring, and the back-EMF term of estimated_current torque
control) therefore sees a positive speed while moving backwards.


Split out of #571 at your request: one fix per PR, against dev. The branch contains
nothing else, so it can be reviewed, amended or dropped on its own.

The CI board matrix runs automatically; I did not run any hardware test, so the behavioural
claims are from reading the code plus the compiler. Happy to adjust the wording, split it
differently or drop it - no attachment to this one.

angleOpenloop() moves in both directions but always stored a positive
shaft_velocity, while velocityOpenloop() stores the signed value. Anything using
shaft_velocity (monitoring, and the back-EMF term of estimated_current torque
control) therefore sees a positive speed while moving backwards.
Copilot AI balanced review requested due to automatic review settings October 7, 2026 22:05

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2 participants