A new, systematic approach to determine the global energy optimum of a hybrid vehicle

Lange, Andreas; Küçükay, Ferit

doi:10.1007/s41104-016-0011-3

Cited by 11 publications

(3 citation statements)

References 7 publications

(6 reference statements)

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“…Figure 13 shows the structure of the modular simulation model. The global optimal control strategy (GOCS) [12,13] is an in-house developed control strategy to determine fuel consumption and energy consumption. The detailed introduction of the GOCS can be found in Ref.…”

Section: Modular Simulation Model and Optimal Control Strategymentioning

confidence: 99%

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Study of Series-Parallel and Power-Split DHT for Hybrid Powertrains

Chen

Küçükay

2021

Automot. Innov.

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Dedicated hybrid transmission (DHT) is the developing trend of hybrid transmissions. This paper studies different types of DHTs regarding the structure, function, and performance. Firstly, the structure and function of different well-known DHTs in the market are discussed and analyzed. Through the analysis, the reasonability and necessity of the different modes and the electric motor power requirements that lie behind different DHTs are derived. Secondly, the dynamics of different DHTs are further compared with the driving areas in different modes under different driving conditions. Then, the basic or minimum dynamic requirements are defined and taken into consideration before the economic comparison. To ensure the effectiveness of the comparison, the optimization of the configurations for each kind of DHT is carried out with the modular simulation model. The economic comparison is conducted under the premise of excluding the influences of the configurations in the results. Finally, the sensitivity and influence of different engine characteristics for different DHTs are studied to find out the sensibilities of the two kinds of DHTs with engine technology. Through these studies, the essential differences and features of different DHTs can be derived to help better understand the decision in choosing the technical route for the original equipment manufacturers.

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Section: Modular Simulation Model and Optimal Control Strategymentioning

confidence: 99%

“…The detailed introduction of the GOCS can be found in Ref. [13]. The global energetic optimum is achieved by the systematic sequence of partial optimization.…”

Section: Modular Simulation Model and Optimal Control Strategymentioning

confidence: 99%

Study of Series-Parallel and Power-Split DHT for Hybrid Powertrains

Chen

Küçükay

2021

Automot. Innov.

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“…To select the most efficient operating points, two operation strategy approaches are implemented. In addition to a globally optimal control strategy, presented in [7,8], there is a locally optimal operating strategy based on the equivalent consumption minimization strategy (ECMS) [9,10]. This local optimal approach is used in the following considerations.…”

Section: + -mentioning

confidence: 99%

Benchmarking of Dedicated Hybrid Transmissions

Sieg

Küçükay

2020

Vehicles

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For many manufacturers, hybridization represents an attractive solution for reducing the energy consumption of their vehicles. However, electrification offers a wide range of possibilities for implementing powertrain concepts. The concepts can differ regarding their mechanical complexity and the required power of the electrical machines. In this article, drive concepts that differ in their functionality and drive train topology are compared. Based on requirements for the C, D, and E segment, the mechanical and electrical effort of the concepts is analyzed. The results show that the mechanical effort in the C segment can be reduced as long as the electrical effort is increased. In case of higher vehicle segments, the electrical effort can increase considerably, making concepts with increased mechanical complexity more suitable. The driving performance and efficiency in hybrid operation are evaluated via simulation. The results show that the difference of acceleration times in hybrid operation between a charged and discharged battery is lower for mechanically complex concepts. At the same time, they achieve lower CO2 emissions. Therefore, these concepts represent a better compromise regarding performance and efficiency. Despite lower transmission efficiencies in hybrid operation, they achieve conversion qualities similar to simpler concepts and lower emissions with lower electrical effort.

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