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More About This Title Common Rail Fuel Injection Technology in Diesel Engines
English
A wide-ranging and practical handbook that offers comprehensive treatment of high-pressure common rail technology for students and professionals
In this volume, Dr. Ouyang and his colleagues answer the need for a comprehensive examination of high-pressure common rail systems for electronic fuel injection technology, a crucial element in the optimization of diesel engine efficiency and emissions. The text begins with an overview of common rail systems today, including a look back at their progress since the 1970s and an examination of recent advances in the field. It then provides a thorough grounding in the design and assembly of common rail systems with an emphasis on key aspects of their design and assembly as well as notable technological innovations. This includes discussion of advancements in dual pressure common rail systems and the increasingly influential role of Electronic Control Unit (ECU) technology in fuel injector systems. The authors conclude with a look towards the development of a new type of common rail system. Throughout the volume, concepts are illustrated using extensive research, experimental studies and simulations. Topics covered include:
- Comprehensive detailing of common rail system elements, elementary enough for newcomers and thorough enough to act as a useful reference for professionals
- Basic and simulation models of common rail systems, including extensive instruction on performing simulations and analyzing key performance parameters
- Examination of the design and testing of next-generation twin common rail systems, including applications for marine diesel engines
- Discussion of current trends in industry research as well as areas requiring further study
Common Rail Fuel Injection Technology is the ideal handbook for students and professionals working in advanced automotive engineering, particularly researchers and engineers focused on the design of internal combustion engines and advanced fuel injection technology. Wide-ranging research and ample examples of practical applications will make this a valuable resource both in education and private industry.
English
Guangyao Ouyang is a Professor at the Naval University of Engineering, China. He has close to three decades of experience in the design and optimization of power machinery.
Shijie An is an Associate Professor at the Naval University of Engineering, China.
Zhenming Liu is a scholar at the Naval University of Engineering, China.
Yuxue Li is an Associate Professor at the Naval University of Engineering, China.
English
Preface
Introduction
1 Introduction 1
1.1 The development of electronic control fuel injection system 2
1.1.1 Position type electronic control fuel injection system 3
1.1.2 Time type electronic control fuel injection system 3
1.1.3 Pressure-time controlled (common rail) type electronic control fuel injection system 4
1.2 high pressure common rail system present situation and development 8
1.2.1 for common rail system 8
1.2.2 High-power Marine diesel common rail system 11
2 Common Rail System Simulation and overall design technology 16
2.1 Common Rail System Basic Model 17
2.1.1 The common rail system required to simulate a typical module HYDSIM 17
2.1.2 The relevant parameters during the simulation calculations 22
2.2 Common Rail System Simulation Model 23
2.2.1 The high pressure pump simulation model 23
2.2.2 Injector flow restrictor simulation model 24
2.2.3 Simulation Model Electronic Fuel Injector 25
2.2.4 The overall model common rail system 27
2.3 Influence Analysis of high pressure common rail system parameters 29
2.3.1 Influence Analysis of high pressure fuel pump structure parameters 29
2.3.2 Analysis of Influence of High-Pressure Rail Volume 33
2.3.3 Influence of injector structure parameters 35
2.3.4 The influence of flow limiter 42
2.3.5 Common rail system design principle 43
3 Electronically Controlled Injector Design Technologies 45
3.1 Electric control fuel injector control solenoid valve design technology 45
3.1.1 Solenoid valve 33 mathematical analysis model 45
3.1.2 Solenoid magnetic field finite element analysis 52
3.1.3 Solenoid valve response characteristic analysis 59
3.1.4 What should be concerned in designing the solenoid valve 75
3.2 Nozzle design technology 75
3.2.1 Mathematical model and spray model analysis of nozzle internal flow field 75
3.2.2 Analysis on Influence of injection of electronically controlled injector 95
3.2.3 Simulation and experimental study of spray 121
4 Chapter 4 High-Pressure Fuel Pump Design Technology 127
4.1 Leakage control technique for plunger and barrel assembly 127
4.1.1 Finite element analysis of the fluid physical field in the plunger and barrel assembly gap 130
4.1.2 Finite element analysis of plunger and barrel assembly structure 139
4.1.3 Structural optimization of plunger and barrel assembly 142
4.1.4 Experimental study on deformation compensation performance of plunger and barrel assembly 148
4.2 Strength analysis of cam transmission system for high-pressure fuel pump 154
4.2.1 Dynamic simulation of cam mechanism of high-pressure pump 155
4.2.2 Stress analysis of cam and roller contact surface 157
4.2.3 Experimental study on stress and strain of high-pressure fuel pump 171
4.3 Research on common rail pressure control technology based on pump flow control 177
4.3.1 Design study of high-pressure pump flow control device 178
4.3.2 Conjoint simulation analysis of flow control device and common rail system 196
4.3.3 Analysis of simulation results 200
4.3.3 Experimental study on the regulation of common rail pressure by flow control device 202
5 ECU design technique 213
5.1 An overview of diesel engine electronically controlled technology 213
5.1.1 The development of ECU 214
5.1.2 Development of electronically controlled system development tools and design methods 218
5.2 Overall design of the controller 220
5.2.1 Controller development process 220
5.2.2 Hierarchical function design and Technical indicators of controller 221
5.2.3 Input signal 224
5.2.4 Output signal 227
5.3 Design of diesel engine control strategy based on finite state machine 231
5.3.1 Brief introduction of finite state machine 231
5.3.2 Design of operation state conversion module 232
5.3.4 Design of starting state control strategy 236
5.3.5 Design of state control strategy for acceleration and deceleration 237
5.3.6 Design of stable speed control strategy 238
5.3.7 Principle of oil supply pulse 238
5.4 Design of ECU hardware circuit 239
5.4.2 Control core circuit design 242
5.4.3 Design of sensor signal conditioning circuit 246
5.4.4 Design of power drive circuit 253
5.5 Soft core development of Field Programmable Gate Array (FPGA) 262
5.5.1 EDA technology and VHDL language 262
5.5.2 Module division of FPGA internal function 264
5.5.3 Design of rotational speed measurement module 267
5.5.4 Design of control pulse generation module for injector 272
6 Research on Matching Technology 278
6.1 Component matching technology of common rail system 278
6.1.1 Matching design of high-pressure fuel pump 278
6.1.2 Matching design of rail chamber 279
6.1.3 Matching design of injector 279
6.2 Optimization calibration technology of jet control MAP 290
6.2.1 Summary 290
6.2.2 Offline steady state optimization calibration of common rail diesel engine 292
7 Development of Dual Pressure Common Rail System 298
7.1 Structure design and simulation modeling of dual pressure common rail system 300
7.1.1 Design of dual pressure common rail system supercharger 300
7.1.2 Modeling of dual pressure common rail system 303
7.2 Simulation study of dual pressure common rail system 304
7.2.1 Study on the dynamic characteristics of the system 305
7.2.2 Prototype trial production 314
7.3 Control strategy and implementation of dual pressure common rail system 315
7.3.1 Control strategy of dual pressure common rail system 315
7.3.2 Hardware and software design of controller based on single chip microcomputer 317
7.3.3 Drive circuit design 321
7.4 Experimental study on dual pressure common rail system 325
7.4 Test of pressurization pressure and injection law 326
7.4.2 Test on spray characteristics of dual pressure common rail system 336
7.4.3 Experimental research conclusions 341
