Method for controlling operation of an electrical machine
AssigneeZF Friedrichshafen AG
InventorsFelix Dorband, Alfred Tareilus, Hans-Dieter Endres
Life of this patent
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Abstract
Method for controlling operation of an electrical machine, in particular of an electrical machine of a motor vehicle, an operating state of the electrical machine being switched between an active short circuit mode and at least one further operating mode. When switching between the short circuit mode and the at least one further operating mode, a duty factor of an operating signal, in particular of a PWM signal, of the electrical machine is changed in a ramp-shaped manner at least in sections.
Claims14
A method for controlling operation of an electrical machine, comprising:
- switching an operating state of the electrical machine between an active short circuit mode and at least one further operating mode;
- and
- changing a duty factor of an operating signal in a ramp-shaped manner at least in sections when switching between the active short circuit mode and the at least one further operating mode.
A control device configured to control operation of an electrical machine, of a motor vehicle, the control device configured to:
- switch an operating state of the electrical machine between an active short circuit mode and at least one further operating mode;
- and
- change a duty factor of an operating signal in a ramp-shaped manner at least in sections when switching between the active short circuit mode and the at least one further operating mode.
A motor vehicle comprising an electrical machine and a control device configured to control operation of an electrical machine, of a motor vehicle, the control device configured to:
- switch an operating state of the electrical machine between an active short circuit mode and at least one further operating mode;
- and
- change a duty factor of an operating signal in a ramp-shaped manner at least in sections when switching between the active short circuit mode and the at least one further operating mode.
Dependencies are inferred from the claim text.