Motor Controller Calibration Using Existing Mode Inputs

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Solution Overview

Problem

Existing motor control systems require complex and expensive equipment for adjusting operation parameters, limiting user flexibility and efficiency in field settings.

Innovation Solution

A motor controller with a processor, memory, and multiple inputs that allows for parameter adjustments through a calibration mode, enabling users to increment or decrement parameter values such as motor speed using existing mode selection inputs, without the need for additional equipment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a preconfigured set of parameters is used for motor control, then the motor operation is stable and reliable, but the parameter adjustment requires expensive and complicated service equipment

Engineering Contradiction:
Improvemotor operation stabilityVSAvoidparameter adjustment equipment
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The existing mode selection inputs are made multi-functional by programming them to serve both their original mode selection purpose and a new parameter adjustment purpose. When a calibration mode is detected, the same inputs are reconfigured to increment or decrement parameter values, eliminating the need for separate adjustment equipment.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The motor controller performs parameter adjustment autonomously using its own processor and existing inputs. The system detects calibration mode, reconfigures its processor to interpret inputs as adjustment commands, and modifies parameter values without external intervention, making the device self-sufficient for parameter tuning.

Inventive Principle:
Principle #25Self-service

2Measurement precision

If parameter adjustment is restricted to service technicians using specialized equipment, then parameter accuracy is maintained, but user flexibility and field adjustment capability are reduced

Engineering Contradiction:
Improveparameter accuracyVSAvoidfield adjustment capability
Core Design Contradiction:
Measurement precisionVSAdaptability or versatility

Solution Approach 1:

A calibration mode indicator serves as an intermediary mechanism that mediates between the user's adjustment intent and the processor's parameter modification actions. The indicator provides visual feedback about the current calibration state, enabling users to understand and control the parameter adjustment process without requiring specialized knowledge or equipment.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The processor dynamically changes its operational parameters by reconfiguring itself when calibration mode is detected. The same physical inputs are reinterpreted to have different functional meanings (from mode selection to parameter increment/decrement), allowing flexible field adjustment while maintaining system control.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS10908590B2System and method for adjusting an operation of a motor
Publication Date: 2021.02.02 REGAL BELOIT AMERICA INC
  • US10908590B2 patent drawing
  • US10908590B2 patent drawing
  • US10908590B2 patent drawing

AI summary

A motor controller coupled to a motor is provided. The motor controller includes a processor, a memory coupled to the processor, a first input coupled to the processor, wherein the first input is associated with a first mode of operation, and a second input coupled to the processor, wherein the second input is associated with a calibration mode. The motor controller is configured to receive, through the first input, a first activation signal, operate the motor in the first mode of operation in response to receiving the first activation signal, while operating the motor in the first mode of operation, receive, through the second input, a second activation signal, in response to receiving the first activation signal and the second activation signal, adjust a value of a parameter associated with the first mode of operation, and store the value of the parameter in the memory.