Control of an electric machine
First Claim
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1. A method of controlling an electric machine, the method comprising:
- storing a plurality of power maps, wherein each power map comprises a plurality of control values for a plurality of voltages, and wherein the control values are used to control the electric machine such that, for each power map, the electric machine is driven at different power over the plurality of voltages;
selecting a power map of the plurality of power maps in response to an input signal; and
exciting a winding of the electric machine at one or more times defined by the control values of the selected power map.
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Abstract
A method of controlling an electric machine, the method comprising storing a plurality of power maps, each power map comprising control values for driving the electric machine at different power, and selecting a power map in response to an input signal. Additionally, a control system for an electric machine, and a product incorporating the control system and electric machine.
149 Citations
23 Claims
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1. A method of controlling an electric machine, the method comprising:
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storing a plurality of power maps, wherein each power map comprises a plurality of control values for a plurality of voltages, and wherein the control values are used to control the electric machine such that, for each power map, the electric machine is driven at different power over the plurality of voltages; selecting a power map of the plurality of power maps in response to an input signal; and exciting a winding of the electric machine at one or more times defined by the control values of the selected power map. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A control system for an electric machine, the control system comprising a memory storing a plurality of power maps, wherein each power map comprises a plurality of control values for a plurality of voltages, and the control values are used to control the electric machine such that, for each power map, the electric machine is driven at different power over the plurality of voltages, wherein the control system is configured to select one of the power maps in response to an input signal, and wherein a winding of the electric machine is excited at one or more times defined by the control values of the selected power map.
- 17. A product comprising a power supply, an electric machine, and a control system storing a plurality of power maps, wherein each power map comprises a plurality of control values for a plurality of voltages, and the control values are used to control the electric machine such that, for each power map, the electric machine is driven at different power over the plurality of voltages, and the control system is configured to select one of the power maps in response to an input signal, and use the selected power map to drive the electric machine, wherein driving the electric machine includes exciting a winding of the electric machine at times defined by the control values of the selected power map.
Specification