Method and control device for controlling an active short circuit in an electric machine with permanent magnet excitation
AssigneeZF Friedrichshafen AG
InventorJan Doering
Life of this patent
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Abstract
A method for controlling an active short circuit in a permanent magnet excited electric machine, the method including checking if an activating of the active short circuit is requested, registering at least one further state parameter of the electric machine, determining, if the active short circuit is requested in the step of checking, if the at least one further state parameter has a critical value, and controlling the activating of the active short circuit as a function of the determining by sending a control signal to a device for short circuiting.
Claims15
A method for controlling an active short circuit in a permanent magnet excited electric machine, the method comprising:
- checking if an activating of the active short circuit is requested;
- registering at least one further state parameter of the electric machine;
- determining, if the active short circuit is requested in the step of checking, if the at least one further state parameter has a critical value;
- and
- controlling the activating of the active short circuit as a function of the determining by sending a control signal to a device for short circuiting.
Dependencies are inferred from the claim text.