Experimental Investigation of the Loading Strategy of an Automotive Diesel Engine under Transient Operation Conditions

Qiang Liu, Zhongchang Liu, Yongqiang Han, Jing Tian, Jun Wang and Jian Fang
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Qiang Liu: State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, China
Zhongchang Liu: State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, China
Yongqiang Han: State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, China
Jing Tian: State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, China
Jun Wang: Jilin Engineering Normal University, Innovative Research Team of Jilin Engineering Normal University (IRTJLENU), Changchun 130052, China
Jian Fang: Jilin Engineering Normal University, Innovative Research Team of Jilin Engineering Normal University (IRTJLENU), Changchun 130052, China

Energies, 2018, vol. 11, issue 5, 1-15

Abstract: Targeting the performance optimization of an automotive diesel engine under transient operation conditions, in this research, the effect of several non-linear loading strategies on diesel performance have been experimentally analyzed using a heavy-duty turbocharged diesel engine running under transient conditions based on the constant 1650 r/min speed, the load is increased from 10% to 100% in a 5 s transition time The results show that the larger the early loading rate and change point load, the better the dynamic torque response. The peak values of smoke and CO and the transient average of brake specific fuel consumption (BSFC), soot and CO can be decreased by increasing the early loading rate by the loading strategies with the appropriate change point load during transient operation. However, combustion deteriorates under the loading process with an overlarge change point load, causing emissions to increase, and the larger the early loading rate, the worse the worsening. Based on the trade-off consisting of torque dynamic response, transient total and transient average of the BSFC and brake specific emissions, peak values of smoke and CO emissions, it is concluded that the loading strategy with the early loading rate is the 50% load per second and the change point load in the 25% load is the most suitable in these strategies.

Keywords: automotive diesel engine; transient operation; loading strategy; performance optimization (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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