1. Aono, T., Estimation of engine torque and cylinder pressure index based on crankshaft rotation measurement, Transactions of Society of Instrument and Control Engineers, Vol.51, No.9 (2015), pp. 605-613 (in Japanese).
2. Asai, G., Hagiwara, R., Kato, R., Matsumura, E., Nakazono, T., Senda, J. and Shiomi, K., A study on the influence of hydrogen addition on combustion and exhaust characteristics in a lean burn gas engine for power generation (second report), Transactions of Automotive Engineers of Japan, Vol. 51, No. 2 (2020), pp. 245-249 (in Japanese).
3. Eguchi, S., Kawasaki, K., Kitazaki, M. and Shioji, M., Characteristics of knocking and performance in hydrogen and natural gas fueled engine, Proceedings of the Society of Automotive Engineers of Japan, No. 31-03 (2003) (in Japanese).
4. Fujii, Y., Komiyama, R. and Otsuki, T., Optimal power generation mix considering hydrogen storage of variable renewable power generation, Transactions (B) of Electrical Engineers of Japan, Vol. 134, No. 10 (2014), pp. 885-895 (in Japanese).
5. Gotoda, R., Kawamura, T., Kumano, K., Shimada, A., Sukegawa, Y. and Watanabe, H., Combustion timing control supplying hydrogen in hydrogen mixed combustion engine, Transactions of the JSME (in Japanese), Vol. 88, No. 913 (2022), DOI: 10.1299/transjsme.22-00118.