自動車エンジンルーム内の熱環境予測

摘要

Recently, underhood of vehicles has been overcrowded and sealed. On the other hand, engines have been high performance. Therefore, underhood thermal environment is very severe, so that we have developed a calculation method to predict underhood thermal environment. In this study, we tried to simulate heat damage tests of a vehicle in an environmental test room. Comparing calculation results with experimental results, the effectiveness of this calculation method was confirmed. This paper describes examination results of the underhood thermal environment simulation at high speed driving.%近年，乗用自動車市場においては，デザイン性が高く，rn車室内空間が広い車種の人気が高まっている．自動車rnメーカでは，これらのニーズに応えるべく車両開発が行rnわれている．しかし，車室内空間を広くとることは，工rnンジンルームの縮小化?過密化を引き起こす．