Optimization of Control Strategy and Key Components of a Two-mode Hybrid Vehicle

Zhou, Li; Younis, Adel; Dong, Z.; Wishart, Jeffrey

doi:10.2514/6.2008-5833

Cited by 2 publications

(1 citation statement)

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“…Without having a thorough understanding on the shape of this complex objective function of equations (5) and (6), solution of such an optimisation problem usually requires global optimisation (GO) search methods, such as generic algorithm (GA), particle swarm optimisation (PSO), or meta-modal-based GO methods (Zhou et al, 2008). The needed computation is heavy and accurate result is not assured.…”

Section: A Two-stage Hybrid Optimisation Solution Schemementioning

confidence: 99%

A performance optimisation-based e-CVT design method and analysis of representative HEV/PHEV powertrains

Zhou

Dong

2011

IJEHV

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An electronically controlled continuous variable transmission (e-CVT) which consists of planetary gears and electric machines plays a key role in advanced hybrid powertrains of HEV/PHEV/EREVs. Design of these e-CVTs for best performance is a challenging task due to the complexity of these e-CVTs and hybrid powertrain system derived from them. In this work, a performance modelling and optimisation-based design method is introduced to automatically identify the best performance of an e-CVT or other complex hybrid vehicle powertrain system. The complex design optimisation problem for peak powertrain performance is solved using a unique two-stage search method to significantly reduce needed computation and assure the accuracy of the optimisation. Four representative e-CVT powertrain designs of representative HEV/PHEV/EREVs were used as case studies. Test results are calibrated using verified data to reveal the performance characteristics and potential of each powertrain designs. Application of this method to produce new e-CVT and gear-train designs with enhanced performance is demonstrated.Keywords: peak powertrain performance; powertrain design; model-based design; electronically continuous variable transmission; e-CVT; optimisation; hybrid electric vehicle; HEV; plug-in hybrid electric vehicle; PHEV; extended range electric vehicle; EREV.Reference to this paper should be made as follows: Zhou, L. and Dong, Z. (2011) 'A performance optimisation-based e-CVT design method and analysis of representative HEV/PHEV powertrains', Int.

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Section: A Two-stage Hybrid Optimisation Solution Schemementioning

confidence: 99%