278
K. Asai et al.
19.6 Conclusion
In this study, we developed an LCS system that can be used for improving the management method of the circular manufacturing system. The developed LCS system is
versatile enough to evaluate various life cycle scenarios which have multitiered circulation. In the system, we incorporated functions such as management of an individual
item and user, flow control of each process, and tracking the history of an individual
item so that we can check and track when and where each item provides value to
the users. We applied this LCS system to evaluate the life cycle scenario of LIBs for
EVs that incorporated close-loop reuse and cascade reuse for stationary batteries to
illustrate its practical effectiveness.
In the application, we adopted average value provision for users as an evaluation
index in this simulation. In the simulation, we checked the requested SOH distribution
and items flow/inventories in the assembly process to identify the problems occurring in its circulation flow management and take appropriate measures to improve
the result. In fact, we succeeded to eliminate the problems and increase the value
provision.
For future work, LCS should be improved to enable the evaluation of various
operation management indices for considering the circulation management methods.
Regarding items, we need to consider products’ line-up and their model changes due
to advances in technology.
Acknowledgements This study was supported by the JST-Mirai Program JPMJMI17C1.
References
Ekvall T, Weidema Bo P (2004) System boundaries and input data in consequential life cycle
inventory analysis. Int J Life Cycle Assess 9(3):161–171
Fukuyo K (2011) Household attributes and electricity consumption of photovoltaic system owners.
J Environ Eng AIJ 76(666):741–750 (in Japanese)
Kawakami K, Fukushige S, Kobayashi H (2017) A functional approach to life cycle simulation for
system of systems. Proc CIRP 61:110–115
Kimura F (1999) Life cycle design for inverse manufacturing. In: Proceedings of the 1st international
symposium on environmentally conscious design and inverse manufacturing, pp 995–999
Komoto H, Tomiyama T, Nagel M, Silvester S, Brezet H (2005) Life cycle simulation for analyzing
product service systems. In Proceedings of fourth international symposium on environmentally
conscious design and inverse manufacturing, pp 386–393
Market Trend Survey of Passenger Automobile in 2017, Japan Automobile Manufacturers
Association, Inc. (in Japanese)
Murata H, Yokono N, Fukushige S, Kobayashi H (2018) A lifecycle simulation method for global
reuse. Int J Automation Technol 12(6):814–821
Nassehi A, Colledani M (2018) A multi-method simulation approach for evaluating the effect
of the interaction of customer behaviour and enterprise strategy on economic viability of
remanufacturing. CIRP Ann Manuf Technol 67(1):33–36
K. Asai et al.
19.6 Conclusion
In this study, we developed an LCS system that can be used for improving the management method of the circular manufacturing system. The developed LCS system is
versatile enough to evaluate various life cycle scenarios which have multitiered circulation. In the system, we incorporated functions such as management of an individual
item and user, flow control of each process, and tracking the history of an individual
item so that we can check and track when and where each item provides value to
the users. We applied this LCS system to evaluate the life cycle scenario of LIBs for
EVs that incorporated close-loop reuse and cascade reuse for stationary batteries to
illustrate its practical effectiveness.
In the application, we adopted average value provision for users as an evaluation
index in this simulation. In the simulation, we checked the requested SOH distribution
and items flow/inventories in the assembly process to identify the problems occurring in its circulation flow management and take appropriate measures to improve
the result. In fact, we succeeded to eliminate the problems and increase the value
provision.
For future work, LCS should be improved to enable the evaluation of various
operation management indices for considering the circulation management methods.
Regarding items, we need to consider products’ line-up and their model changes due
to advances in technology.
Acknowledgements This study was supported by the JST-Mirai Program JPMJMI17C1.
References
Ekvall T, Weidema Bo P (2004) System boundaries and input data in consequential life cycle
inventory analysis. Int J Life Cycle Assess 9(3):161–171
Fukuyo K (2011) Household attributes and electricity consumption of photovoltaic system owners.
J Environ Eng AIJ 76(666):741–750 (in Japanese)
Kawakami K, Fukushige S, Kobayashi H (2017) A functional approach to life cycle simulation for
system of systems. Proc CIRP 61:110–115
Kimura F (1999) Life cycle design for inverse manufacturing. In: Proceedings of the 1st international
symposium on environmentally conscious design and inverse manufacturing, pp 995–999
Komoto H, Tomiyama T, Nagel M, Silvester S, Brezet H (2005) Life cycle simulation for analyzing
product service systems. In Proceedings of fourth international symposium on environmentally
conscious design and inverse manufacturing, pp 386–393
Market Trend Survey of Passenger Automobile in 2017, Japan Automobile Manufacturers
Association, Inc. (in Japanese)
Murata H, Yokono N, Fukushige S, Kobayashi H (2018) A lifecycle simulation method for global
reuse. Int J Automation Technol 12(6):814–821
Nassehi A, Colledani M (2018) A multi-method simulation approach for evaluating the effect
of the interaction of customer behaviour and enterprise strategy on economic viability of
remanufacturing. CIRP Ann Manuf Technol 67(1):33–36