Numerical analysis of cabin particulate matter to improve cabin air quality

Mie Hirahara･Yusuke Nakamura･Masato Hijikuro･Akane Masui･Keigo Shimizu･Kazuki Ito･Yuki Koda (Mazda)

This study reports the results of numerical analysis of particulate matter, especially PM2.5, in vehicle interiors for the purpose of improving air quality in vehicle interiors. Specifically, the airflow in the cabin of an actual vehicle was calculated when the air conditioning mode was changed, and the behavior of particulate matter following the flow was analyzed numerically. The results of the numerical analysis are compared with experimental results and their validity is discussed.

Investigation of convective heat transfer to various parts of the human body for air conditioning efficiency and thermal comfort

Akane Masui･Yusuke Nakamura･Masato Hijikuro･Mie Hirahara･Koki Kawakami･Kazuki Ito･Akira Togii･Keigo Shimizu (Mazda)

In this study, we investigated the effects of parameters such as external environmental conditions and air conditioning settings on convective heat transfer in various parts of the human body by experiments and numerical analysis for air conditioning efficiency and thermal comfort. As a result, we gained knowledge that is useful for improving the interior environment.

Thermal manikin for optimizing the cabin climatization control strategy

Patrick Schutzeich (FEV Vehicle GmbH)･David Hemkemeyer (FEV Europe)･Kai Franke･Daniel Linse (RWTH Aachen University - Chair of Thermodynamics of Mobile Energy Conversion Systems (tme))･Simon Schilling (FEV Europe)･Noriyuki Muramatsu (FEV Japan)

Cabin conditioning is an important factor in the development of thermal management system for electrified vehicles. The control strategies to be developed for this purpose are becoming more sophisticated and consider factors such as air quality and passenger comfort. Objective calibration of the cabin conditioning software is therefore often very complex. FEV has developed a thermal comfort manikin which is used to automate the calibration process. The presentation will focus on the design of the thermal manikin and the generation of benchmark data. In addition, FEV's tool chain for the automated calibration of the cabin conditioning software will be presented.

1D Model Development of Thermal Management System in BEV

Takeru Kakita (DENSO)･Matthew Blom (DENSO Automotive Systems Australia)･Yousuke Yasuda･Yusuke Sato･Tomohiro Sudo (DENSO)

Since it is difficult for BEV to store a large amount of energy, it is important to make air conditioning compatible with running distance by thermal management by appropriately moving a heat pump. In this paper, we report the development of the MBD method for the thermal management system including the heat pump, which is difficult to predict due to the phase change of the refrigerant.