Impact of Engine Oil Detergent on Low Speed Pre-Ignition (LSPI) and Fuel Economy Performance

Gupta, Avijit; Devlin, Mark T.

doi:10.4271/2020-01-1424

Cited by 4 publications

(2 citation statements)

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“…29 Among detergent dispersants, magnesium salicylate has better fuel economy than calcium sulfonate. 30…”

Section: Resultsmentioning

confidence: 99%

“…29 Among detergent dispersants, magnesium salicylate has better fuel economy than calcium sulfonate. 30 To further analyze the FEI results according to the parameters in Table 2, we can see that: (1) the baseline oil has the highest viscosity and the lowest viscosity index. Moreover, the low-temperature dynamic viscosity is significantly higher than that of other oils, and the poor low-temperature fluidity leads to a larger friction torque during engine start-up.…”

Section: Analysis Of Fei Results Of Engine Oilsmentioning

confidence: 99%

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Development of turbocharged engine bench test adapted to multiple driving cycles for lubricants fuel economy

Ye,

Yimin,

Xiangkui

2023

International Journal of Engine Research

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Aimed to more truly and stably measure the fuel economy of a vehicle under different driving cycles, simultaneously reduce prime cost and short experimental period. An engine fuel economy test method and bench which could adapt to multiple cycle conditions was developed. The fuel economy test of a certain SUV under NEDC/WLTC was carried out, and the transient operating parameters of the engine were collected. The engine fuel economy test bench was established and accurately controlled according to transient parameters. The FEI of five different formulations of engine oils was tested. The results indicate that the actual bench parameters are in good agreement with the target transient parameters. Multiple FC measurements of baseline oil and multiple FEI measurements of high reference oil show that the engine bench has good repeatability. The data fluctuation degree of bench test is obviously smaller than that of vehicle test. The correlation coefficients of comprehensive FEI between bench test and vehicle test are 95.25% (NEDC) and 96.39% (WLTC). It means that the bench test can completely replace the vehicle test for fuel economy analysis. The FEI of No.3 oil which has the best fuel improvement are 1.888% (NEDC) and 1.248% (WLTC) respectively. Compared with the vehicle test, the engine bench testing can save 75% of the time. The fuel economy bench and test methods are also suitable for the verification of fuel economy improvement of other engine optimization measures under different driving cycles. The development period of engine technologies can be shortened, and the test cost can be reduced.

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“…29 Among detergent dispersants, magnesium salicylate has better fuel economy than calcium sulfonate. 30…”

Section: Resultsmentioning

confidence: 99%

Section: Analysis Of Fei Results Of Engine Oilsmentioning

confidence: 99%