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  • Summary & Details

Development of a Friction Evaluation Method Under Actual Operating Conditions and Friction Reduction in the Crankshaft System

内燃機関の実動時摩擦評価法の開発とクランク軸周りの摩擦低減検討

Detailed Information

Author(J)1) 戸井田 一宣, 2) 小山 崇, 3) 大河 誠, 4) 小川 輝
Author(E)1) Kazunori Toida, 2) Takashi Koyama, 3) Makoto Okawa, 4) Teru Ogawa
Affiliation(J)1) トヨタ自動車, 2) トヨタ自動車, 3) トヨタ自動車, 4) トヨタ自動車
Affiliation(E)1) Toyota Motor, 2) Toyota Motor, 3) Toyota Motor, 4) Toyota Motor
Abstract(J)自動車用内燃機関において,筒内圧が作用する実動状態での摩擦を把握するにあたり指圧線図法が広く使われているがその計測精度には課題がある.そこで著者らは高精度に実動時の摩擦評価が可能な実用的な過給モータリング法を開発した.また解析で得たクランク軸周りの摩擦低減指針を本計測手法を用いて実証した.

Translation

Abstract(E)In automotive internal combustion engines, the indicator diagram methodology is widely used to evaluate friction under the working load of in-cylinder pressure; however, its measurement accuracy remains limited. To address this issue, a practical boosted-motored friction methodology was developed. Friction reduction approaches for the crankshaft system derived from analysis were validated using the developed methodology.

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