Benchmark parameters of transmissions

Lange, Andreas; Küçükay, Ferit

doi:10.1007/s41104-017-0022-8

Cited by 2 publications

(2 citation statements)

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“…Table 7 shows the selected EM power for all concepts. In addition to the driving performance and the efficiency of the concepts, this article also evaluates the conversion quality defined by [11]. The concepts are compared regarding this benchmark parameter.…”

Section: Benchmark Analysismentioning

confidence: 99%

“…For further evaluation of the concepts in hybrid operation, the average transmission efficiency and the average conversion quality in WLTC are calculated. The conversion quality is introduced in [11] and describes the ratio of the theoretical optimum efficiency of the ICE to the actual efficiency of the ICE. The parameter thus describes the ability of a transmission to operate an energy converter at its power-specific optimum efficiency.…”

Section: Evaluation Of Conversion Quality and Transmission Efficiencymentioning

confidence: 99%

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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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Section: Benchmark Analysismentioning

confidence: 99%

Section: Evaluation Of Conversion Quality and Transmission Efficiencymentioning

confidence: 99%