Vehicle Indoor Air Quality Control Using Corrected External Dust Data
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Solution Overview
Problem
The high cost of high-performance dust detectors in vehicles leads to inconsistent air conditioning system operation, either failing to remove dust when needed or removing it unnecessarily, affecting indoor air quality and increasing manufacturing costs.
Innovation Solution
An apparatus that uses corrected air dust concentration data from external sources to control the operation mode of the air conditioning system, determining dust concentration outside the vehicle without an outdoor dust detector, and adjusts the intake door and blower operation to maintain optimal indoor air quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-performance dust detectors are installed to increase dust removal performance, then dust detection accuracy is improved, but manufacturing cost increases
Solution Approach 1:
The patent uses an intermediary approach by installing a dust detector inside the vehicle and using data processing algorithms (including external air quality data as an intermediary source) to estimate outdoor dust concentrations, rather than directly installing expensive outdoor dust detectors. This mediates between the need for accurate outdoor dust detection and the constraint of manufacturing costs.
Solution Approach 2:
The patent creates a virtual copy of outdoor dust detection capability by using indoor dust detector readings combined with data processing algorithms that reference external air quality information. This copying approach allows the system to infer outdoor conditions without physically placing expensive sensors outdoors.
2Ease of manufacture
If low-price and low-performance dust detectors are used, then manufacturing cost is reduced, but air conditioning system operation consistency deteriorates
Solution Approach 1:
The patent makes the dust detection system multi-functional by using the indoor dust detector not only for indoor air quality monitoring but also as a reference point for estimating outdoor dust concentrations through algorithmic processing that incorporates external air quality data. This universal use of the low-cost sensor maintains system reliability while reducing costs.
Solution Approach 2:
The system implements feedback mechanisms where indoor dust detector readings are continuously processed alongside external air quality data to adjust and refine outdoor dust concentration estimates. This feedback loop compensates for the lower performance of inexpensive sensors, maintaining operational consistency.
3Measurement precision
If outdoor dust detectors are installed to accurately determine outdoor dust concentration, then air quality control is improved, but device complexity increases
Solution Approach 1:
The patent extracts the essential function of outdoor dust detection by separating it from the need for physical outdoor sensors. Instead, it extracts outdoor dust concentration information from multiple data sources (indoor detector readings and external air quality data) and processes them algorithmically to achieve accurate determination without adding complex hardware.
Data Source
AI summary
An apparatus for improving vehicle indoor air quality, may include a controller configured to correct and verify air dust concentration data; determine dust concentration outside a vehicle based on the verified data; and control an operation mode of an air conditioning device according to the determination; and the air conditioning device, wherein an operation of an intake door configured to control an introduction of outdoor air into the vehicle is controlled in response to signals of the controller.