Benefits and limits of a Constraint Satisfaction Problem/Life Cycle Assessment approach for the ecodesign of complex systems: a case applied to a hybrid passenger ferry

Tchertchian, Nicolas; Yvars, Pierre‐Alain; Millet, Dominique

doi:10.1016/j.jclepro.2012.10.048

Cited by 31 publications

(15 citation statements)

References 40 publications

(37 reference statements)

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“…TEEPI was not designed for generating eco-designed innovative concepts; therefore, it would be relevant to link this tool to a decision-making design tool such as those using the problem resolution by constraint satisfaction algorithm [18].…”

Section: Resultsmentioning

confidence: 99%

Implementation of Environmental Considerations in the Innovation Process of Complex Systems: Groupe PSA Case Study

Garcia¹,

Tonnelier²,

Sophie³

2018

Designing Sustainable Technologies, Products and Policies

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Car manufacturer's innovation teams are mainly focusing on decreasing automotive consumption and may lead to risks of transfers of environmental impacts. So, engineers in innovation should be able to evaluate their innovations in a life cycle and multi-criteria perspective. In this paper, Groupe PSA's approach for integrating the environmental dimension during the innovation phase is presented. An eco-design framework of reference has been developed in a collaborative manner by the environment team together with innovation leaders. It tackles both the issues of how to deploy environmental requirements in the innovation process, and how to generate an organizational learning. This methodology is explained through the example of the Stop and Start technology. The validation in the quality procedure is essential to make the approach sustainable.

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Section: Resultsmentioning

confidence: 99%

Implementation of Environmental Considerations in the Innovation Process of Complex Systems: Groupe PSA Case Study

Garcia¹,

Tonnelier²,

Sophie³

2018

Designing Sustainable Technologies, Products and Policies

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show abstract

“…A special feature of this research is the Constraint Programming (CP) algorithms for solving constraint satisfaction problems (CSPs) representing the scenario of the use phase. CP and CSPs still found little use for solving ecodesign problems (Larroude et al, 2011;Tchertchian et al, 2013) whereas it is more widespread in preliminary design (Chenouard et al, 2009;Meyer and Yvars, 2012). CSPs in EcoBatt aim to use continuous models of LCA and to simulate multiple usage scenarios of several battery technologies.…”

Section: /21mentioning

confidence: 99%

A novel approach for global environmental performance evaluation of electric batteries for hybrid vehicles

Garcia

Millet²,

Tonnelier

et al. 2017

Journal of Cleaner Production

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International audienceThe automotive product is increasingly restricted by environmental regulations, including reducing emissions of CO2 and pollutants in exhaust pipes of vehicles. One solution implemented in the automotive industry are plug-in hybrid electric vehicles (PHEV) that use an electric traction battery. To help vehicle manufacturers in their choice of traction battery from an environmental point of view, a simulation method of environmental impacts generated by the use phase is proposed in this paper. This method takes into account the possible usages of the vehicle and potential developments of electric mix, with the formulation of a constraint satisfaction problem (CSP) solved using constraint programming (CP) techniques. The sensitivity of five parameters is investigated: the electricity mix used to charge the battery, the battery mass, electric consumptions, the autonomy in " all-electric mode " , and the share of total travel in " all-electric mode ". Power grid is the most differentiating parameter for global warming and PHEV generates less impact if less used in " all-electric mode " on a high carbon intensity power grid. Lastly, CSP acausal modeling makes it possible to process different simulations with the same model

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“…The works of Tchertchian, Yvars, and Millet (2013) demonstrated the relevance of an approach combining CSP solving approach and LCA method to define the best architecture and operation modes of a complex system with respect to environmental constraints. This fruitful research pointed to a way forward.…”

Section: The Ecocsp Approach: a Development Of The Csp/lca Approachmentioning

confidence: 99%

“…The EcoCSP approach is a further development of the CSP/LCA approach proposed by (Tchertchian, Yvars, and Millet 2013). This approach is based on a combination of two methods "Constraint Satisfaction Problem"/Life Cycle Assessment.…”

Section: Presentation Of the Ecocsp Approachmentioning

confidence: 99%

The influence of the level of definition of functional specifications on the environmental performances of a complex system. EcoCSP approach

Tchertchian

Millet

Yvars³

2016

International Journal of Sustainable Engineering

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a 'Design & ecodesign Methodology' lab, S u P M e C a -toulon, la garde Cedex, france; b 'Design & ecodesign Methodology' lab, S u P M e C aSaint-ouen Cedex, france ABSTRACT The tendency towards a homogenous mode of development modelled on that of Western countries means that sustainable development has become increasingly urgent. It is necessary to thoroughly redefine products and their expected performances in such a way that the consequences are compatible with sustainable development. In the domain of product design, this means that it is no longer sufficient to use assessment tools "after the fact" to check the impact of products whose functional unit (FU) was defined prior to production; it is now necessary to rethink the definition of the FU itself. This article aims to present an approach based on a combination of life cycle analysis methods and problem-solving by constraint satisfaction. This original approach makes it possible to vary the design of the different dimensions of the FUs of a complex system and thus to make it easier to identify the best architecture along with the best functional definition of the system. In this study, the EcoCSP approach is applied to define the functional performances of an ecological passenger ferry. The complexity of couplings between subsystems and the sheer number of those subsystems mean that the designer has to use "intelligent" tools. These simulate a great number of scenarios and help him/her to fine-tune the system and make the right technological choices with regard to the right functional specifications.

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Benefits and limits of a Constraint Satisfaction Problem/Life Cycle Assessment approach for the ecodesign of complex systems: a case applied to a hybrid passenger ferry

Cited by 31 publications

References 40 publications

Implementation of Environmental Considerations in the Innovation Process of Complex Systems: Groupe PSA Case Study

Implementation of Environmental Considerations in the Innovation Process of Complex Systems: Groupe PSA Case Study

A novel approach for global environmental performance evaluation of electric batteries for hybrid vehicles

The influence of the level of definition of functional specifications on the environmental performances of a complex system. EcoCSP approach

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