Method for actuating a polyphase machine
AssigneeRobert Bosch GmbH
InventorsFabio Magini, Paul Mehringer
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Abstract
A method is described for activating a multiphase machine that has a link circuit equipped with a link circuit capacitor, phase windings, and one high-side switch and one low-side switch per phase. The switches associated with the individual phases have control signals applied to them by a control unit. The control unit provides, in successive activation cycles, pulse-shaped control signals for the switches, the pulse widths and pulse onsets of which are respectively varied within an activation cycle in such a way that the link circuit current is reduced.
Claims9
1-8. (canceled)
A method for activating a multiphase machine that includes a link circuit equipped with a link circuit capacitor, phase windings, and one high-side switch and one low-side switch per phase, comprising:
- providing, by a control unit, in successive activation cycles, pulse-shaped control signals for the switches;
- and
- respectively varying pulse widths and pulse onsets of the control signals within an activation cycle in such a way that a link circuit current is reduced.
Dependencies are inferred from the claim text.