Prediction of AI-Based Personal Thermal Comfort in a Car Using Machine-Learning Algorithm
Defining a passenger’s thermal comfort in a car cabin is difficult because of the narrow environment and various parameters. Although passenger comfort is predicted using a thermal-comfort scale in the overall cabin or a local area, the scale’s range of passenger comfort may differ owing to psycholo...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/11/3/340 |
| _version_ | 1797488405770141696 |
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| author | Yeong Jo Ju Jeong Ran Lim Euy Sik Jeon |
| author_facet | Yeong Jo Ju Jeong Ran Lim Euy Sik Jeon |
| author_sort | Yeong Jo Ju |
| collection | DOAJ |
| description | Defining a passenger’s thermal comfort in a car cabin is difficult because of the narrow environment and various parameters. Although passenger comfort is predicted using a thermal-comfort scale in the overall cabin or a local area, the scale’s range of passenger comfort may differ owing to psychological factors and individual preferences. Among the many factors affecting such comfort levels, the temperature of the seat is one of the direct and significant environmental factors. Therefore, it is necessary to predict the cabin environment and seat-related personal thermal comfort. Accordingly, machine learning is used in this research to predict whether a passenger’s seat-heating-operation pattern can be predicted in a winter environment. The experiment measures the ambient factor and collects data on passenger heating-operation patterns using a device in an actual winter environment. The temperature is set as the input parameter in the measured data and the operation pattern is used as the output parameter. Based on the parameters, the predictive accuracy of the heating-operation pattern is investigated using machine learning. The algorithms used in the machine-learning train are Tree, SVM, and kNN. In addition, the predictive accuracy is tested using SVM and kNN, which shows a high validation accuracy based on the prediction results of the algorithm. In this research, the parameters predicting the personal thermal comfort of three passengers are investigated as a combination of input parameters, according to the passengers. As a result, the predictive accuracy of the operation pattern according to the tested input parameter is 0.96, showing the highest accuracy. Considering each passenger, the predictive accuracy has a maximum deviation of 30%. However, we verify that it indicates the level of accuracy in predicting a passenger’s heating-operation pattern. Accordingly, the possibility of operating a heating seat without a switch operation is confirmed through machine learning. The primary-stage research result reveals whether it is possible to predict objective personal thermal comfort using the passenger seat’s heating-operation pattern. Based on the results of this research, it is expected to be utilized for system construction based on the AI prediction of operation patterns according to the passenger through machine learning. |
| first_indexed | 2024-03-10T00:01:42Z |
| format | Article |
| id | doaj.art-c42133a523d94f6d94dbf3453b6ba642 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T00:01:42Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-c42133a523d94f6d94dbf3453b6ba6422023-11-23T16:15:18ZengMDPI AGElectronics2079-92922022-01-0111334010.3390/electronics11030340Prediction of AI-Based Personal Thermal Comfort in a Car Using Machine-Learning AlgorithmYeong Jo Ju0Jeong Ran Lim1Euy Sik Jeon2Graduate School of Mechanical Engineering, Kongju National University, Cheonan-daero, Seobuk-gu, Cheonan-si 31080, KoreaIndustrial Technology Research Institute, Kongju National University, Cheonan-daero, Seobuk-gu, Cheonan-si 31080, KoreaIndustrial Technology Research Institute, Kongju National University, Cheonan-daero, Seobuk-gu, Cheonan-si 31080, KoreaDefining a passenger’s thermal comfort in a car cabin is difficult because of the narrow environment and various parameters. Although passenger comfort is predicted using a thermal-comfort scale in the overall cabin or a local area, the scale’s range of passenger comfort may differ owing to psychological factors and individual preferences. Among the many factors affecting such comfort levels, the temperature of the seat is one of the direct and significant environmental factors. Therefore, it is necessary to predict the cabin environment and seat-related personal thermal comfort. Accordingly, machine learning is used in this research to predict whether a passenger’s seat-heating-operation pattern can be predicted in a winter environment. The experiment measures the ambient factor and collects data on passenger heating-operation patterns using a device in an actual winter environment. The temperature is set as the input parameter in the measured data and the operation pattern is used as the output parameter. Based on the parameters, the predictive accuracy of the heating-operation pattern is investigated using machine learning. The algorithms used in the machine-learning train are Tree, SVM, and kNN. In addition, the predictive accuracy is tested using SVM and kNN, which shows a high validation accuracy based on the prediction results of the algorithm. In this research, the parameters predicting the personal thermal comfort of three passengers are investigated as a combination of input parameters, according to the passengers. As a result, the predictive accuracy of the operation pattern according to the tested input parameter is 0.96, showing the highest accuracy. Considering each passenger, the predictive accuracy has a maximum deviation of 30%. However, we verify that it indicates the level of accuracy in predicting a passenger’s heating-operation pattern. Accordingly, the possibility of operating a heating seat without a switch operation is confirmed through machine learning. The primary-stage research result reveals whether it is possible to predict objective personal thermal comfort using the passenger seat’s heating-operation pattern. Based on the results of this research, it is expected to be utilized for system construction based on the AI prediction of operation patterns according to the passenger through machine learning.https://www.mdpi.com/2079-9292/11/3/340personal thermal comfortheating seatheating operation patterncabin environmentclassification algorithms |
| spellingShingle | Yeong Jo Ju Jeong Ran Lim Euy Sik Jeon Prediction of AI-Based Personal Thermal Comfort in a Car Using Machine-Learning Algorithm Electronics personal thermal comfort heating seat heating operation pattern cabin environment classification algorithms |
| title | Prediction of AI-Based Personal Thermal Comfort in a Car Using Machine-Learning Algorithm |
| title_full | Prediction of AI-Based Personal Thermal Comfort in a Car Using Machine-Learning Algorithm |
| title_fullStr | Prediction of AI-Based Personal Thermal Comfort in a Car Using Machine-Learning Algorithm |
| title_full_unstemmed | Prediction of AI-Based Personal Thermal Comfort in a Car Using Machine-Learning Algorithm |
| title_short | Prediction of AI-Based Personal Thermal Comfort in a Car Using Machine-Learning Algorithm |
| title_sort | prediction of ai based personal thermal comfort in a car using machine learning algorithm |
| topic | personal thermal comfort heating seat heating operation pattern cabin environment classification algorithms |
| url | https://www.mdpi.com/2079-9292/11/3/340 |
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