Innovative Solutions for the Calibration of Hybrid Drives

Merl, Reinhard; Jung, Christian; Huss, Arno; Klumaier, Kurt

doi:10.1007/s38311-020-0225-x

Cited by 3 publications

(2 citation statements)

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“…Therefore, the main purpose of this study is to highlight the influence of road load factor value on the results of CO 2 emission and energy consumption tests during the investigation of cars on a chassis dynamometer. Increased knowledge about the effects of chassis dynamometer loading on car emissions and energy consumption results may also allow for improved simulation models in virtual test environments [16].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Effect of Chassis Dynamometer Load Setting on CO2 Emissions and Energy Demand of a Full Hybrid Vehicle

et al. 2021

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Among the solutions that make it possible to reduce CO2 emissions in the transport sector, particularly in urban traffic conditions, are hybrid vehicles. The share of driving performed in electric mode for hybrid vehicles is highly dependent on motion resistance. There are different methods for determining the motion resistance function during chassis dynamometer testing, leading to different test results. Therefore, the main objective of this study was to determine the effect of the chassis dynamometer load function on the energy demand and CO2 emissions of a full-hybrid passenger car. Emissions tests according to the New European Driving Cycle (NEDC) were carried out on a chassis dynamometer for three different methods of determining the car’s resistance to motion. The study showed that adopting the motion resistance function according to different methods, results in differences in CO2 emissions up to about 35% for the entire cycle. Therefore, the authors suggest that in the case of tests carried out with chassis dynamometers, it is necessary to also provide information on the chassis dynamometer loading function adopted for the tests.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the Effect of Chassis Dynamometer Load Setting on CO2 Emissions and Energy Demand of a Full Hybrid Vehicle

et al. 2021

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“…Energies 2023, 16, 5723 2 of 20 This entails a significant complication of the powertrain and control system of hybrid vehicles [14,15]. There are many powertrain solutions for hybrid vehicles and many ways to control the flow of energy, specific to the different companies that build this type of vehicle.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Effect of Road Load on Energy Consumption and Exhaust Emissions of a Hybrid Vehicle in an Urban Road Driving Cycle—Comparison of Road and Chassis Dynamometer Tests

Jaworski,

Kuszewski,

Lew

et al. 2023

Energies

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Differences between the results obtained in laboratory and road tests of vehicles depend on a number of factors. Among the most important of these are driving cycle and road load. These parameters also affect the hybrid drive control, including the combustion engine operation or driving in electric mode. In most studies, tests carried out on chassis dynamometers concern type approval cycles (NEDC—New European Driving Cycle, WLTC—World-wide harmonized Light duty Test Cycle, FTP— Federal Test Procedure), which differ from real on-road tests. Consequently, the different driving cycles do not allow for results similar to those obtained during on-road driving, especially as the actual cycles on the road are unrepeatable. It is also important to determine the effect of the motion resistance function adopted for chassis dynamometer tests on exhaust emissions and fuel consumption. For this purpose, the authors tested a hybrid car under road and laboratory conditions for the same driving cycle. The analysis was conducted for an example urban road cycle in Rzeszow (URRC). The purpose of the study was to determine the differences in the results of gaseous emissions (THC, CO, CO2, NOx) and fuel consumption (energy) of a hybrid car under road conditions, with the results of tests conducted on a chassis dynamometer, for the same cycle and three functions of resistance.

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