HVAC Motor Controller Digital Adjustment Profile for Fast Setup
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current HVAC systems require tedious and time-consuming manual adjustments to set motor control signals, especially during installation, which can lead to inaccuracies in setting the same control signal values across multiple devices.
Innovation Solution
A digital adjustment profile is loaded into a controller using a computing device, allowing for faster and more accurate setting of motor control signals through a microcontroller with non-volatile memory, enabling pre-configuration and enabling/disabling manual adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If manual adjustments are used to set motor control signals, then the controller can be configured, but the process is tedious and time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-configuring motor control signal values in a lookup table within the controller during manufacturing. This allows the controller to be shipped with preset configurations that can be quickly loaded during installation, eliminating the need for time-consuming manual adjustments on-site.
Solution Approach 2:
The patent replaces the mechanical manual adjustment process with an automated digital system. Instead of physically adjusting potentiometers or switches, the controller uses a microprocessor to automatically load and apply control signal values from a lookup table, substituting mechanical adjustment with electronic automation.
2Manufacturing precision
If manual adjustments are used to set motor control signals, then configuration is possible, but accuracy in setting identical values across multiple devices is poor
Solution Approach 1:
The patent replaces manual mechanical adjustment with an automated digital lookup table system. The microprocessor automatically retrieves precise control signal values from the lookup table based on motor specifications, ensuring identical and accurate configuration across multiple devices without human error.
Solution Approach 2:
The patent uses copying by storing standardized motor control signal values in a lookup table that can be replicated across multiple controllers. This allows identical configuration data to be copied and applied to numerous devices, ensuring consistency and accuracy without requiring manual re-entry for each device.
3Productivity
If lookup table with pre-configured values is used, then setup time is reduced, but device complexity increases
Solution Approach 1:
The patent applies universality by designing a lookup table and automated loading system that serves multiple functions: storing motor specifications, containing control signal values, and providing automatic configuration. This multi-functional approach consolidates what would otherwise require separate components, minimizing the actual increase in device complexity while maximizing productivity benefits.
Data Source
AI summary
A method and apparatus for a controller and multi-speed interface (“MSI”) in a heating, ventilating, and air-conditioning (“HVAC”) systems to set each call by loading an adjustment profile into the controller. This controller, interface, and process is faster and more accurate than making manual adjustments and allows an equipment manufacturer or HVAC system installer to set many HVAC devices such as variable speed motors to exactly the same control signal value.