Simulation-Based Cold-Start Control Strategy for a Diesel Engine with Common Rail Fuel System at Different Ambient Temperatures

2007 ◽  
Author(s):  
Lurun Zhong ◽  
Naeim A. Henein ◽  
Walter Bryzik
Keyword(s):  
Diesel Engine ◽  
Control Strategy ◽  
Cold Start ◽  
Common Rail ◽  
Fuel System ◽  
Ambient Temperatures ◽  
Simulation Based

scholarly journals Development of a Generic Dual Fuel ECU for Common Rail Diesel Engine Control

2021 ◽  
Author(s):  
◽  
Luke James Frogley
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Fuel Injection ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Common Rail ◽  
Dual Fuel ◽  
Fuel System ◽  
Compressed Natural Gas ◽  
Diesel Operation

<p>Rising costs of diesel fuel has led to an increased interest in dual fuel diesel engine conversion, which can offset diesel consumption though the simultaneous combustion of a secondary gaseous fuel. This system offers benefits both environmentally and financially in an increasingly energy-conscious society. Dual fuel engine conversions have previously been fitted to mechanical injection systems, requiring physical modification of the fuel pump. The aim of this work is to develop a novel electronic dual fuel control system that may be installed on any modern diesel engine using common rail fuel injection with solenoid injector valves, eliminating the need for mechanical modification of the diesel fuel system.  The dual fuel electronic control unit developed replaces up to 90 percent of the diesel fuel required with cleaner-burning and cheaper compressed natural gas, providing the same power output with lower greenhouse gas emissions than pure diesel. The dual fuel system developed controls the flow of diesel, gas, air, and engine timing to ensure combustion is optimised to maintain a specific torque at a given speed and demand. During controlled experimental analysis, the dual fuel system exceeded the target substitution rate of 90 precent, with a peak diesel substitution achieved of 97 percent, whilst maintaining the same torque performance of the engine under diesel operation.</p>

Development of control strategy for fast idling condition of diesel engine based on target torque

2021 ◽  
Vol 13 (12) ◽  
pp. 168781402110626
Author(s):  
Jiesong Jian ◽  
Xuedong Lin ◽  
Yuanchun Ren ◽  
Yingchao Zhang ◽  
Chun Shen ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Fuel Economy ◽  
Control Strategy ◽  
Cold Start ◽  
Maximum Speed ◽  
Fuel Saving ◽  
Time Saving ◽  
Warm Up

This article puts forward the concept of fast idling condition. The comparative experiments of idling and fast idling warming up engine show that: during cold start, the warm-up of fast idling condition whose maximum speed is 1350 r/min is the most fuel-efficient, fuel-saving about 4.5%, time-saving about 32.5%; at normal temperature, warming up engine of fast idling condition does not save fuel. The warm-up experiments of fast idling condition that accelerations are different in the descent phase show that when the engine is cold, the smaller the acceleration in the descent phase of fast idling condition is, the more time and fuel are saved; at normal temperature, the bigger the acceleration in the descent phase of fast idling condition is, the better the fuel economy is. Therefore, it is inferred that the engine should be warmed up under fast idling condition when the engine is cold and idling condition is used to warm up engine at normal temperature. To sum up, when the engine is cold, the engine should be warmed up under the fast idling condition whose maximum speed is 1350 r/min; at normal temperature, it should be warmed up in idling condition to save fuel.

Experiences in Cold Start Optimization of a Multi-Purpose Vehicle Equipped with 2.2L Common Rail Diesel Engine

2011 ◽  
Author(s):  
Dominic John ◽  
Pundlik Ghodke PhD ◽  
Nilesh Gajarlawar ◽  
Jidhin Joseph lng
Keyword(s):  
Diesel Engine ◽  
Cold Start ◽  
Common Rail

scholarly journals A control method of fuel distribution by combustion chamber zones and its dependence on injection conditions

2018 ◽  
Vol 22 (Suppl. 5) ◽  
pp. 1425-1434 ◽  
Author(s):  
Mikhail Shatrov ◽  
Valery Malchuk ◽  
Andrey Dunin ◽  
Ivan Shishlov ◽  
Vladimir Sinyavski
Keyword(s):  
Diesel Engine ◽  
Combustion Chamber ◽  
Effective Cross Section ◽  
Injection Rate ◽  
Operating Conditions ◽  
Common Rail ◽  
Fuel System ◽  
Excessive Pressure ◽  
The Common ◽  
The Impact

A method of fuel injection rate shaping of the Diesel engine common rail fuel system with common rail injectors and solenoid control is proposed. The method envisages the impact on control current of impulses applied to the control solenoid valve of the common rail injectors for variation of the injection rate shape. At that, the fuel is supplied via two groups of injection holes. The entering edges of the first group with the coefficient of flow, ??B, were located in the sack volume and the entering edges of the second group (coefficient of flow, ??H) - on the locking taper surface of the nozzle body. The coefficients of flow, ??B, and ??H differ considerably and depend on the valve needle position. This enables to adjust the injection quantity by injection holes taking into account operating conditions of the Diesel engine and hence - by the combustion chamber zones. Using the constant fuel flow set-up, characteristic of the effective cross-section of the common rail fuel system injector holes was investigated. The diameter of injector holes was 0.12 ? 0.135 mm. The excessive pressure at the entering edges varied from 30 to 150 MPa and more and the excessive pressure in the volume behind the output edge - from 0 to 16 MPa.

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