Bosch Professional Automotive Information Konrad Reif Ed. Diesel Engine Management Systems and Components Bosch Professional Automotive Information Bosch Professional Automotive Information is a definitive reference for automotive engineers. The series is compiled by one of the world´s largest automotive equipment suppliers. All topics are covered in a concise but descriptive way backed up by diagrams, graphs, photographs and tables enabling the reader to better comprehend the subject. There is now greater detail on electronics and their application in the motor vehicle, including electrical energy management (EEM) and discusses the topic of intersystem networking within vehicle. The series will benefit automotive engineers and design engineers, automotive technicians in training and mechanics and technicians in garages. Konrad Reif Editor Diesel Engine Management Systems and Components Editor Prof. Dr.-Ing. Konrad Reif Duale Hochschule Baden-Württemberg Friedrichshafen, Germany [email protected] ISBN978-3-658-03980-6 ISBN978-3-658-03981-3(eBook) DOI10.1007/978-3-658-03981-3 LibraryofCongressControlNumber:2014945110 SpringerVieweg ©SpringerFachmedienWiesbaden2014 Thisworkissubjecttocopyright. Allrightsarereserved, whetherthewholeorpartofthematerialis concerned,specificallytherightsoftranslation,reprinting,reuseofillustrations,recitation,broadcasting, reproductiononmicrofilmorinanyotherway,andstorageindatabanks.Duplicationofthispublication orpartsthereofispermittedonlyundertheprovisionsoftheGermanCopyrightLawofSeptember9,1965, initscurrentversion,andpermissionforusemustalwaysbeobtainedfromSpringer.Violationsareliable toprosecutionundertheGermanCopyrightLaw. Theuseofgeneraldescriptivenames,registerednames,trademarks,etc.inthispublicationdoesnotimply, evenintheabsenceofaspecificstatement,thatsuchnamesareexemptfromtherelevantprotectivelaws andregulationsandthereforefreeforgeneraluse. Printedonacid-freepaper SpringerispartofSpringerScience+BusinessMedia www.springer.com Foreword V Foreword This reference book provides a comprehensive insight into today´s diesel injection systems and electronic control. It focusses on minimizing emissions and exhaust-gas treatment. Innovations by Bosch in the field of diesel-injection technology have made a significant contribution to the diesel boom. Calls for lower fuel consumption, reduced exhaust-gas emissions and quiet engines are making greater demands on the engine and fuel-injection systems. Complex technology of modern motor vehicles and increasing functions need a relia- ble source of information to understand the components or systems. The rapid and secure access to these informations in the field of Automotive Electrics and Electron- ics provides the book in the series “Bosch Professional Automotive Information” which contains necessary fundamentals, data and explanations clearly, systemati- cally, currently and application-oriented. The series is intended for automotive professionals in practice and study which need to understand issues in their area of work. It provides simultaneously the theoretical tools for understanding as well as the applications. VI Contents Contents 2 History of the diesel engine 92 Unit injector system (UIS) and unit pump 3 Rudolf Diesel system (UPS) 4 Mixture formation in the first diesel engines 94 System diagram of UIS for passenger cars 5 Use of the first vehicle diesel engines 96 System diagram of UIS/UPS for commercial 8 Bosch diesel fuel injection vehicles 12 Areas of use for diesel engines 98 Unit injector system (UIS) 12 Suitability criteria 98 Installation and drive 12 Applications 99 Design 15 Engine characteristic data 102 Method of operation of UI for passenger cars 16 Basic principles of the diesel engine 105 Method of operation of UI for 16 Method of operation commercial vehicles 19 Torque and power output 107 High-pressure solenoid valve 20 Engine efficiency 23 Operating statuses 110 Unit pump system (UPS) 27 Operating conditions 110 InstalIation and drive 29 Fuel-injection system 110 Design 30 Combustion chambers 112 Current-controlled rate shaping (CCRS) 34 Fuels 114 Overview of common-rail systems 34 Diesel fuel 114 Areas of application 41 Alternative fuels for diesel engines 115 Design 116 Operating concept 46 Cylinder-charge control systems 120 Common-rail system for passenger cars 46 Overview 125 Common-rail system for commercial 47 Turbochargers and superchargers vehicles 56 Swirl flaps 57 Intake air filters 128 High-pressure components of common-rail system 60 Basic principles of diesel fuel injection 128 Overview 60 Mixture distribution 130 Injector 62 Fuel-injection parameters 142 High-pressure pumps 71 Nozzle and nozzle holder designs 148 Fuel rail (high-pressure accumulator) 149 High-pressure sensors 72 Overview of diesel fuel-injection systems 150 Pressure-control valve 72 Designs 151 Pressure-relief valve 78 Fuel supply system to the low-pressure 152 Injection nozzles stage 154 Pintle nozzles 78 Overview 156 Hole-type nozzles 80 Fuel filter 160 Future development of the nozzle 82 Fuel-supply pump 86 Miscellaneous components 162 Nozzle holders 88 Supplementary valves for in-line 164 Standard nozzle holders fuel-injection pumps 165 Stepped nozzle holders 166 Two-spring nozzle holders 90 Overview of discrete cylinder systems 167 Nozzle holders with needle-motion sensors 90 Type PF discrete injection pumps Contents VVIIII 168 High-pressure lines 255 Serial data transmission (CAN) 168 High-pressure connection fittings 260 Application-related adaptation 1) of car 169 High-pressure delivery lines engines 264 Application-related adaptation 1) of 172 Start-assist systems commercial vehicle engines 172 Overview 269 Calibration tools 173 Preheating systems 272 Electronic Control Unit (ECU) 178 Minimizing emissions inside of the engine 272 Operating conditions 179 Combustion process 272 Design and construction 181 Other impacts on pollutant emissions 272 Data processing 183 Development of homogeneous combustion processes 278 Sensors 184 Diesel fuel injection 278 Automotive applications 196 Exhaust-gas recirculation 278 Temperature sensors 199 Positive crankcase ventilation 280 Micromechanical pressure sensors 283 High-pressure sensors 200 Exhaust-gas treatment 284 Inductive engine-speed sensors 201 NOx storage catalyst 285 Rotational-speed (rpm) sensors and 204 Selective catalytic reduction of incremental angle-of-rotation sensors nitrogen oxides 286 Hall-effect phase sensors 210 Diesel Particulate Filter (DPF) 288 Accelerator-pedal sensors 218 Diesel oxidation catalyst 290 Hot-film air-mass meter HFM5 292 LSU4 planar broad-band Lambda 220 Electronic Diesel Control (EDC) oxygen sensor 220 System overview 294 Half-differential short-circuiting-ring sensors 223 In-line fuel-injection pumps 295 Fuel-level sensor 224 Helix and port-controlled axial-piston distributor pumps 296 Fault diagnostics 225 Solenoid-valve-controlled axial-piston and 296 Monitoring during vehicle operation radial-piston distributor pumps (on-board diagnosis) 226 Unit Injector System (UIS) for passenger 299 On-board diagnosis system for passenger cars cars and light-duty trucks 227 Unit Injector System (UIS) and Unit Pump 306 On-board diagnosis system for heavy-duty System (UPS) for commercial vehicles trucks 228 Common Rail System (CRS) for passenger cars 308 Service technology 229 Common Rail System (CRS) for commercial 308 Workshop business vehicles 312 Diagnostics in the workshop 230 Data processing 314 Testing equipment 232 Fuel-injection control 316 Fuel-injection pump test benches 243 Further special adaptations 318 Testing in-line fuel-injection pumps 244 Lambda closed-loop control for passenger- 322 Testing helix and portcontrolled distributor car diesel engines injection pumps 249 Torque-controlled EDC systems 326 Nozzle tests 252 Control and triggering of the remaining actuators 253 Substitute functions 328 Exhaust-gas emissions 254 Data exchange with other systems 328 Overview VIII Contents 328 Major components 349 European test cycle for passenger cars 330 Combustion byproducts and LDTs 349 Japanese test cycle for passenger cars 332 Emission-control legislation and LDTs 332 Overview 350 Test cycles for heavy-duty trucks 334 CARB legislation (passenger cars/LDT) 338 EPA legislation (passenger cars/LDT) 352 Exhaust-gas measuring techniques 340 EU legislation (passenger cars/LDT) 352 Exhaust-gas test for type approval 342 Japanese legislation (passenger cars/LDTs) 355 Exhaust-gas measuring devices 343 U.S. legislation (heavy-duty trucks) 357 Exhaust-gas measurement in engine deve- 344 EU legislation (heavy-duty trucks) lopment 346 Japanese legislation (heavy-duty trucks) 359 Emissions testing (opacity measurement) 347 U.S. test cycles for passenger cars and LDTs Authors IX Authors History of the diesel engine Dipl.-Ing. Nestor Rodriguez-Amaya, Dipl.-Ing. Karl-Heinz Dietsche. Dipl.-Ing. Ralf Wurm. Areas of use for diesel engines Overview of common-rail systems Dipl.-Ing. Joachim Lackner, Dipl.-Ing. Felix Landhäußer, Dr.-Ing. Herbert Schumacher, Dr.-Ing. Ulrich Projahn, Dipl.-Ing. (FH) Hermann Gries haber. Dipl.-Inform. Michael Heinzelmann, Dr.-Ing. Ralf Wirth. Basic principles of the diesel engine Dr.-Ing. Thorsten Raatz, High-pressure components of common-rail Dipl.-Ing. (FH) Hermann Gries haber. system Dipl.-Ing. Sandro Soccol, Fuels, Diesel fuel Dipl.-Ing. Werner Brühmann. Dr. rer. nat. Jörg Ullmann. Injection nozzles Fuels, Alternative Fuels Dipl.-Ing. Thomas Kügler. Dipl.-Ing. (FH) Thorsten Allgeier, Dr. rer. nat. Jörg Ullmann. Nozzle holders Dipl.-Ing. Thomas Kügler. Cylinder-charge control systems Dr.-Ing. Thomas Wintrich, High-pressure lines Dipl.-Betriebsw. Meike Keller. Kurt Sprenger. Basic principles of diesel fuel injection Start-assist systems Dipl.-Ing. Jens Olaf Stein, Dr. rer. nat. Wolfgang Dreßler. Dipl.-Ing. (FH) Hermann Gries haber. Minimizing emissions inside of the engine Overview of diesel fuel-injection systems Dipl.-Ing. Jens Olaf Stein. Dipl.-Ing. (BA) Jürgen Crepin. Exhaust-gas treatment Fuel supply system to the low-pressure stage Dr. rer. nat. Norbert Breuer, Dipl.-Ing. (FH) Rolf Ebert, Priv.-Doz. Dr.-Ing. Johannes K. Schaller, Dipl.-Betriebsw. Meike Keller, Dr. rer. nat. Thomas Hauber, Ing. grad. Peter Schelhas, Dr.-Ing. Ralf Wirth, Dipl.-Ing. Klaus Ortner, Dipl.-Ing. Stefan Stein. Dr.-Ing. Ulrich Projahn. Electronic Diesel Control (EDC) Overview of discrete cylinder systems Electronic Control Unit (ECU) Unit injector system (UIS) Dipl.-Ing. Felix Landhäußer, Unit pump system (UPS) Dr.-Ing. Andreas Michalske, Dipl.-Ing. (HU) Carlos Alvarez-Avila, Dipl.-Ing. (FH) Mikel Lorente Susaeta, Dipl.-Ing. Guilherme Bittencourt, Dipl.-Ing. Martin Grosser, Dipl.-Ing. Dipl.-Wirtsch.-Ing. Matthias Hickl, Dipl.-Inform. Michael Heinzelmann, Dipl.-Ing. (FH) Guido Kampa, Dipl.-Ing. Johannes Feger, Dipl.-Ing. Rainer Merkle, Dipl.-Ing. Lutz-Martin Fink, Dipl.-Ing. Roger Potschin, Dipl.-Ing. Wolfram Gerwing, Dr.-Ing. Ulrich Projahn, Dipl.-Ing. (BA) Klaus Grabmaier, Dipl.-Ing. Walter Reinisch, Dipl.-Math. techn. Bernd Illg,