The evolution of dynamic interactions between the knowledge development of powertrain systems

Phirouzabadi, Amir Mirzadeh; Savage, David A.; Blackmore, Karen; Juniper, James

doi:10.1016/j.tranpol.2020.04.018

Cited by 12 publications

(7 citation statements)

References 61 publications

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“…Our results relate to recent work on knowledge spillovers between the BEV, hybrid, and ICE powertrains [40]. In particular, using patent data from 2008 to 2016, the study reveals a symbiotic relationship between the ICE and hybrids, meaning that both powertrain technologies benefit from each other's knowledge development.…”

Section: Discussionsupporting

confidence: 78%

“…Accordingly, our spatial perspective constitutes an additional dimension governing technological relations as illustrated by the diesel trajectory in the EU. The latter suggests that the knowledge spillover between hybrid and ICE are less pronounced in this territory because the environment is more favourable to ICE, which motivates manufacturers to pursue knowledge exploration in their own TIS instead of exploiting other technologies [40]. Moreover, the authors reveal a parasitic relationship, with BEVs benefitting from hybrids, and an amensalism in relation to ICE, again in favour of BEVs.…”

Section: Discussionmentioning

confidence: 93%

“…We thereby also consider hybrid applications as a part of the ICE-TIS as they also ensure the survival of combustion engines, although in a potentially symbiotic relationship with the battery electric vehicle (BEV) technology. Notably, this delineation is specific to our research case and should be distinguished by related studies considering hybrids as a separate TIS to measure, for example, knowledge spillovers between powertrain technologies [40].…”

Section: The Transformation Between the Mature And Decline Phasementioning

confidence: 99%

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Mapping the Territorial Adaptation of Technological Innovation Systems—Trajectories of the Internal Combustion Engine

Weiss

Scherer²

2021

Sustainability

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Besides the rise of sustainable technologies, successful sustainability transitions crucially depend on the phase-out of unsustainable ones. However, the detailed dynamics of declining technological innovation systems (TIS) remain vague. Thus, based on the new TIS life cycle framework, we investigate how the technological dimension of a mature TIS adapts to increasing transformational pressures towards its decline. Considering the internal combustion engine (ICE) as a suitable research case, we measure the technological adaptation as changes in the dominant technological trajectory over time and across TIS territories. Empirically, this is operationalised by a main path analysis in patent citation networks, using 221,700 patents to cover the period from 10 January 1901 until 31 January 2019. Our results not only point to considerable shifts in the direction of technological development over time but also highlight stark differences across the three major car markets. Most notably, in contrast to USA and Japan, where hybrid powertrains have become the dominant alternative powertrains, the dominant trajectory in the EU territory points to an ongoing commitment towards diesel technology. In essence, our results highlight the importance of path dependency and connectivity of the knowledge search process as well as selective forces on the innovation system level, which have been neglected by related empirical studies. Conceptionally, our analysis demonstrates that the technological adaptation process is influenced by specific developments during a time period and heterogenous territorial dynamics within the TIS. Consequently, future TIS studies might consider spatially heterogeneous development cycles as well as possible mechanisms to establish an international trajectory towards sustainability goals.

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Section: Discussionsupporting

confidence: 78%

Section: Discussionmentioning

confidence: 93%

Section: The Transformation Between the Mature And Decline Phasementioning

confidence: 99%

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Mapping the Territorial Adaptation of Technological Innovation Systems—Trajectories of the Internal Combustion Engine

Weiss

Scherer²

2021

Sustainability

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“…A global patents database, used in [1] , documents the patents granted in the powertrain technological field of internal combustion engine vehicle (ICEV), hybrid electric vehicle (HEV) and battery electric vehicle (BEV) over 1985–2016. While these vehicle powertrains are satisfying the same transportation need of modern society, they are different in terms of comprising components.…”

Section: Datamentioning

confidence: 99%

“…Our database includes numerous descriptive features of each patent such as title, abstract, claim, priority, application and publication dates, IPCs, assignees/applicants, inventors, and cited references. These data are associated with the research article ‘The evolution of dynamic interactions between the knowledge development of powertrain systems’ [1] . The full dataset, which is attached to this article, may be useful to both researchers and practitioners interested in investigating, modelling or forecasting the complexity and evolution of the technical and knowledge domains of the vehicle powertrains, across a variety of instruments such as social network analysis and regression models.…”

mentioning

confidence: 99%

The global patents dataset on the vehicle powertrains of ICEV, HEV, and BEV

et al. 2020

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Patent bibliometrics data are the most reliable business performance metric for applied research and development activities when investigating the knowledge domains or the technological evolution of vehicle powertrain technologies in the automotive industry. Our paper describes a global patents dataset for the internal combustion engine vehicles (ICEV), hybrid electric vehicles (HEV) and battery electric vehicles (BEV) over 1985–2016. We extracted the patents granted in each powertrain field from Thomson Reuters' Derwent Innovations Index (DII). We applied a combined search strategy of international patent classifications (IPCs) and keywords as well as ‘patent families’ and ‘priority dates’ to construct our global patents dataset. This strategy returned a total of 78,732 patents, within which we identified 49,154 ICEV patents; 10,888 HEV patents; and 18,690 BEV patents. Our database includes numerous descriptive features of each patent such as title, abstract, claim, priority, application and publication dates, IPCs, assignees/applicants, inventors, and cited references. These data are associated with the research article ‘The evolution of dynamic interactions between the knowledge development of powertrain systems’ [1] . The full dataset, which is attached to this article, may be useful to both researchers and practitioners interested in investigating, modelling or forecasting the complexity and evolution of the technical and knowledge domains of the vehicle powertrains, across a variety of instruments such as social network analysis and regression models.

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Does the Construction of Transportation Infrastructure Enhance Regional Innovation Capabilities: Evidence from China

Cui

Tang

2022

J Knowl Econ

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The evolution of dynamic interactions between the knowledge development of powertrain systems

Cited by 12 publications

References 61 publications

Mapping the Territorial Adaptation of Technological Innovation Systems—Trajectories of the Internal Combustion Engine

Mapping the Territorial Adaptation of Technological Innovation Systems—Trajectories of the Internal Combustion Engine

The global patents dataset on the vehicle powertrains of ICEV, HEV, and BEV

Does the Construction of Transportation Infrastructure Enhance Regional Innovation Capabilities: Evidence from China

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