MOTOR CURRENT MAPPING
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Accused Products
Abstract
An electric machine combined with an electronic control unit including a set of onboard maps of a same setpoint parameter on the basis of first and second operating variables of the machine, each of the maps being associated with a different level of a third operating parameter of the electric machine. The maps include ranges of authorized values, and at least one range of extrapolated values. The electronic control unit is configured, for values of the third parameter not associated with one of the onboard maps, to use interpolated values between two authorized values, or between one authorized value and one extrapolated value.
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Citations
20 Claims
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1-10. -10. (canceled)
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11. An electric machine associated with an electronic control unit comprising:
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a group of embedded maps with a same setpoint parameter according to a first operating variable and a second operating variable of the machine, each of the maps being recorded in a same variation domain of the two parameters, each of the maps being associated with a different level of a third operating parameter of the electric machine, the maps including ranges of values having at least two different types of status, or permitted value ranges, and at least one range of extrapolated values, for at least one of the maps, wherein the electronic control unit is configured, when a value of a third parameter is associated with one of the embedded maps, for using as a setpoint value values belonging to the permitted ranges excluding values belonging to the extrapolated ranges, and the electronic control unit is configured, for values of the third parameter not associated with one of the embedded maps, for using interpolated values between two permitted values, or between a permitted value and an extrapolated value. - View Dependent Claims (17, 18, 19, 20)
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12. A method of controlling an electric machine, with aid of a group of maps with a same setpoint parameter according to a first operating variable and a second operating variable defining an operating point of the electric machine,
each of the maps being recorded in a same variation domain of the first and second operating variables, each of the maps being associated with a different level of a third operating parameter of the machine, in which use is forbidden of a specific subgroup of values mapped as setpoint values, but this specific subgroup is used for calculating setpoint values interpolated between a point of the specific subgroup and a second value of a neighboring map not belonging to one of the specific subgroups.
Specification