Optimization of Control Strategy for Turbocharged Diesel Engine Under Transient Condition

2019 ◽  
pp. 1093-1099
Author(s):  
Qiang Liu ◽  
Zhongchang Liu ◽  
Jing Tian ◽  
Yongqiang Han ◽  
Jun Wang ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Control Strategy ◽  
Transient Condition ◽  
Turbocharged Diesel Engine

Vehicle Hybrid Turbocharging System and its Analysis of Energy Flow in Key Condition

2011 ◽  
Vol 71-78 ◽  
pp. 2327-2330
Author(s):  
Fu Zhou Zhao ◽  
Xiu Min Wang ◽  
Kun Zi
Keyword(s):  
Diesel Engine ◽  
Energy Flow ◽  
Flow Distribution ◽  
Transient Condition ◽  
Technical Approach ◽  
Turbocharged Diesel Engine ◽  
Turbocharging System ◽  
Condition Problem ◽  
Energy Share ◽  
Calculated Analysis

By comparing the characteristics of various turbocharging system, then hybird turbocharging system is proposed. In principle the technical approach of hybrid turbocharging system is analyzed to solve the steady and transient condition problem about vehicle diesel engine. Then several modes of energy flow about hybrid turbocharging system are analyzed, and calculation processes about each share of the energy flow are given. According to the characteristic of turbocharged diesel engine, the energy flow distribution of the two typical engine conditons is calculated. Analysis of energy flow is of great significance to properly distribute the energy share and improve the performance of the turbocharging system.

Combustion Simulation of Variable Altitude Turbocharged Diesel Engine Using SVM

2021 ◽  
Vol 22 (4) ◽  
pp. 1087-1095
Author(s):  
Qi Jing ◽  
Qingguo Luo ◽  
Yong Gui ◽  
Hongbin Liu
Keyword(s):  
Diesel Engine ◽  
Turbocharged Diesel Engine ◽  
Combustion Simulation

Stabilizing Excessive EGR With an Oxidation Catalyst on a Modern Diesel Engine

2002 ◽  
Author(s):  
Ming Zheng ◽  
David K. Irick ◽  
Jeffrey Hodgson
Keyword(s):  
Diesel Engine ◽  
Oxidation Catalyst ◽  
Stable Operation ◽  
Exhaust Gas ◽  
Oxides Of Nitrogen ◽  
Engine Operation ◽  
Turbocharged Diesel Engine ◽  
New Approach ◽  
Cyclic Variations ◽  
Gas Recirculation

For diesel engines (CIDI) the excessive use of exhaust gas recirculation (EGR) can reduce in-cylinder oxides of nitrogen (NOx) generation dramatically, but engine operation can also approach zones with high instabilities, usually accompanied with high cycle-to-cycle variations and deteriorated emissions of total hydrocarbon (THC), carbon monoxide (CO), and soot. A new approach has been proposed and tested to eliminate the influences of recycled combustibles on such instabilities, by applying an oxidation catalyst in the high-pressure EGR loop of a turbocharged diesel engine. The testing was directed to identifying the thresholds of stable operation at high rates of EGR without causing cycle-to-cycle variations associated with untreated recycled combustibles. The elimination of recycled combustibles using the oxidation catalyst showed significant influences on stabilizing the cyclic variations, so that the EGR applicable limits are effectively extended. The attainability of low NOx emissions with the catalytically oxidized EGR is also evaluated.

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