Climate Control Mode Switching Using Integrated Temperature Error
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Solution Overview
Problem
Existing climate control systems struggle to efficiently switch between heating and cooling modes to meet the varying demands of multiple zones, often leading to prolonged discomfort and increased energy consumption due to inefficiencies and inadequate control processes.
Innovation Solution
An improved process for controlling the conditioning mode of a climate control system that assesses temperature deviations and integrates error values over time to determine the appropriate mode, allowing for more accurate and efficient switching between heating and cooling based on the specific needs of each zone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a voting system is used to determine conditioning mode switching, then the system allows zone requests to be considered, but the switching response is delayed and zones receive wrong conditioning for too long
Solution Approach 1:
The system performs preliminary assessment of temperature deviations and accumulates error values before switching conditioning modes. By continuously monitoring and integrating temperature errors across zones, the system prepares switching decisions in advance based on accumulated evidence rather than waiting for simple vote thresholds, thereby reducing the time zones receive incorrect conditioning.
2Ease of operation
If simple voting threshold switching is used, then the control process is simple, but the system excessively switches between conditioning modes causing component overuse
Solution Approach 1:
The system uses feedback from integrated temperature error values to determine when switching is appropriate. By continuously monitoring the accumulated error across zones and only switching when the integrated error exceeds predetermined thresholds, the system avoids excessive switching while maintaining responsive control. This feedback mechanism balances simplicity with reliability by using objective temperature data rather than simple vote counting.
3Measurement precision
If integrated error values over time are used to determine mode switching, then switching accuracy is improved, but the control process complexity increases
Solution Approach 1:
The system performs self-assessment by automatically integrating temperature deviations over time and comparing accumulated errors against thresholds. The control process self-regulates by continuously monitoring zone temperatures, accumulating error values, and autonomously determining when mode switching is warranted, thereby achieving high precision without requiring complex external control mechanisms.
Data Source
AI summary
An apparatus and method for controlling the conditioning mode of a climate control device, such as a rooftop unit, that is servicing multiple connected terminal unit. The improved process may include determining a conditioning mode error for the connected terminal units. The conditioning mode error may be an integrated error value that is based on a temperature deviation integrated over the duration of the temperature deviation. The process may also determine a cooling mode error and a heating mode error. The cooling mode error and the heating mode error may be based on the conditioning mode error for the terminal units associated with cooling conditions and heating conditions, respectively. The process may further compare the cooling mode error and the heating mode error, and it may also adjust the conditioning mode of the climate control device based on the comparison.