Reprogrammable motor drive and control therefore

• US 6,768,279 B1
• Filed: 05/27/1994
• Issued: 07/27/2004
• Est. Priority Date: 05/27/1994
• Status: Active Grant

• Current Assignee: Nidec Motor Corporation (Nidec Corporation)
• Original Assignee: Emerson Electric Company
• Inventors: Thorn, John Stephen, Skinner, James, Nordby, Craig, Mercinkiewicz, Joseph G.
• Primary Examiner(s): SALATA, ANTHONY J
• Application Number:
  US08/250,286
• Time in Patent Office: 3,714 Days
• Field of Search: 318/254, 318/256, 318/439, 318/138, 318/365.23, 318/706, 153/19, 388/964, 388/402.5
• US Class Current: 318/400.12
• CPC Class Codes: H02P 23/0077 Characterised by the use of a particular software algorithm
• CPC Class Codes: H02P 25/08 Reluctance motors
• CPC Class Codes: H02P 6/34 Modelling or simulation for control purposes

Abstract

A drive apparatus for use with a dynamoelectric machine system includes drive means connected to the dynamoelectric machine to control at least one of the current or voltage of the machine and a processor including a microcontroller for supplying machine control information to the drive means. A plurality of switches are connected to the processor and art positionable in a plurality of switch settings. Preselected switch settings correspond to operating characteristic information associated with corresponding versions of a given appliance, such that a user positions the switches in a desired switch setting to select the corresponding version of the given appliance. The microcontroller is programmed to read the switch setting and in response thereto, obtain the system operating characteristic information corresponding to the selected version of the given appliance from said second memory so as to permit the system to be used in different versions of the given appliance.

Claims

1. Drive apparatus for use with a dynamoelectric machine system, comprising:

drive means connected to the dynamoelectric machine to control at least one of the current or voltage of the machine;

a processor including a microcontroller for supplying machine control information to the drive means, said processor including a first memory including a read only memory containing at least a portion of an operating program for operating the dynamoelectric machine;

a second memory operatively associated with said processor, said second memory including a non-volatile electrically erasable programmable read only memory for storing dynamoelectric machine operating characteristic information associated with a plurality of appliance environments, wherein said plurality of appliance environments comprises a plurality of versions of a given appliance;

a plurality of switches positionable in a plurality of switch settings connected to said processor, wherein preselected switch settings correspond to one of the versions of the given appliance such that a user positions said plurality of switches in a desired switch setting to select the corresponding version of the given appliance, said microcontroller being programmed to read the switch setting and in response thereto, obtain the system operating characteristic information corresponding to the selected version of the given appliance from said second memory so as to permit said system to be used in different versions of the given appliance; and

programming means operatively attachable to said processor and removable therefrom for loading dynamoelectric machine information associated with said versions of the given appliance into said second memory to enable said drive apparatus to be altered for use with a variety of dynamoelectric machines in different versions of the given appliance.

2. The drive apparatus of claim 1, wherein said plurality of versions of the given appliance comprise versions of the given appliance made by different manufacturers.

3. A method of controlling operation of an electric motor adapted for use in an appliance, comprising:

connecting a motor drive to the motor to control at least one of the current and voltage applied to the motor;

downloading motor operating characteristic information associated with a plurality of appliance environments to a memory device from a programmer connected to said memory device, wherein said plurality of appliance environments comprises a plurality of versions of a given appliance;

selecting one of said versions of the given appliance for said motor by setting the position of at least one of a plurality of switches;

reading the motor characteristic information associated with the selected version of the given appliance from said memory device; and

operating said motor drive in response to said motor operating characteristic information associated with the selected version of the given appliance to allow use of said motor in a variety of versions of a given appliance.

4. The method of claim 3, wherein said plurality of versions of the given appliance comprise versions of the given appliance made by different manufacturers.