DRIVE DEVICE
First Claim
1. A drive device, comprising:
- a power converter configured to convert direct current (DC) power into AC (alternating current) power, and to provide the AC power to an electric motor;
a control unit that is a processor, configured to transmit data to, or receive data from, an external device;
a non-transitory storage medium containing program instructions, execution of which by the control unit causes the control unit to control the power converter by providing functions of;
a core unit thatreceives a first command value, which designates an operating state of the electric motor and is obtained by normalizing a physical quantity corresponding to the operating state using a predetermined reference value,recovers the physical quantity using the received command value and the predetermined reference value, andcontrols the electric motor in accordance with the recovered physical quantity; and
a customization unit thatreceives from the external device a second command value of the physical quantity, which designates the operating state of the electric motor,normalizes the second command value using the predetermined reference value, andprovides the normalized second command value, as the first command value, to the core unit, whereinthe core unit is configured to provide current values of physical quantities, corresponding to operating states of the electric motor, to the customization unit, includingto normalize a predetermined type of physical quantity, among the physical quantities, using the predetermined reference value in accordance with the predetermined type, and to provide the normalized physical quantityto the customization unit, andthe customization unit is configured to convert the normalized physical quantity into the physical quantity of the predetermined type, using the predetermined reference value, which corresponds to the normalized physical quantity.
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Accused Products
Abstract
A drive device for controlling an electric motor, including a processor, and a non-transitory storage medium containing program instructions, execution of which by the process causes the drive device to provide functions of a customization unit and a core unit. The customization unit receives, from an external device, a command value designating an operating state of the electric motor, converts the command value using a predetermined reference value, and outputs the converted command value. The core unit receives the converted command value from the customization unit, recovers a physical quantity from the received converted command value, and controls the electric motor in accordance with the recovered physical quantity.
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Citations
20 Claims
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1. A drive device, comprising:
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a power converter configured to convert direct current (DC) power into AC (alternating current) power, and to provide the AC power to an electric motor; a control unit that is a processor, configured to transmit data to, or receive data from, an external device; a non-transitory storage medium containing program instructions, execution of which by the control unit causes the control unit to control the power converter by providing functions of; a core unit that receives a first command value, which designates an operating state of the electric motor and is obtained by normalizing a physical quantity corresponding to the operating state using a predetermined reference value, recovers the physical quantity using the received command value and the predetermined reference value, and controls the electric motor in accordance with the recovered physical quantity; and a customization unit that receives from the external device a second command value of the physical quantity, which designates the operating state of the electric motor, normalizes the second command value using the predetermined reference value, and provides the normalized second command value, as the first command value, to the core unit, wherein the core unit is configured to provide current values of physical quantities, corresponding to operating states of the electric motor, to the customization unit, including to normalize a predetermined type of physical quantity, among the physical quantities, using the predetermined reference value in accordance with the predetermined type, and to provide the normalized physical quantity to the customization unit, and the customization unit is configured to convert the normalized physical quantity into the physical quantity of the predetermined type, using the predetermined reference value, which corresponds to the normalized physical quantity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A drive device for controlling an electric motor, comprising:
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a processor; and a non-transitory storage medium containing program instructions, execution of which by the process causes the drive device to provide functions of; a customization unit that receives, from an external device, a command value designating an operating state of the electric motor, converts the command value using a predetermined reference value, and outputs the converted command value, and a core unit that receives the converted command value from the customization unit, recovers a physical quantity from the received converted command value, and controls the electric motor in accordance with the recovered physical quantity.
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20. A method for controlling an electric motor, comprising:
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receiving, by a processor executing first program instructions stored in a first area of a storage medium, a command value designating an operating state of the electric motor from an external device; converting, by the processor executing the first program instructions, the command value using a predetermined reference value; outputting, by the processor executing the first program instructions, the converted command value; receiving, by the processor executing second program instructions stored in a second area of the storage medium, the converted command value; recovering, by the processor executing the second program instructions, a physical quantity from the received converted command value; and controlling, by the processor executing the second program instructions, the electric motor in accordance with the recovered physical quantity, wherein the second area, but not the first area, has access restriction imposed thereon.
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Specification