Motronic engine management systems use electronics to precisely monitor and control every aspect of engine operation, thereby improving efficiency, power, and driveability, while at the same time reducing fuel con sumption and tailpipe emissions. This variant of the engine management system was adapted for offroad use. The atmospheric pressure sensor is located by the right hood catch and provides information about air pressure to the engine control module ecm. Administration fire procedure toilets breaks mobile telephones please turn off. Me7 torquebased system in my 1999, and the current. Motronic is the trade name given to a range of digital engine control units developed by robert bosch gmbh commonly known as bosch which combined control of fuel injection and ignition in a single unit. Bosch engine management systems offer optimally coordinated system solutions especially for twowheeler from small bikes in emerging markets to highperformance bikes complete electronic engine control, in combination with sophisticated sensors, provides significant benefits over conventional carburetor systems, ranging from intelligently. The marriage of ignition and fuel injection is a natural fit because they are completely reliant on each other for proper engine operation. Motronic engine management systems use electronics to precisely monitor and control every aspect of engine operation, thereby improving efficiency, power, and. Engine management systems john lahti john deere power systems, waterloo, ia, usa 1 introduction 1 2 engine management system components 1 3 engine control strategies 3 4 individual cylinder models 5 conclusion 15 nomenclature 15 references 16 further reading 16 1 introduction this chapter provides an overview of the engine control. It was originally developed and first used in the bmw 7 series, before being implemented on several volvo and.
The engine control unit is fitted in the plenum chamber and has 121 pins. Motronic med has a torquebased engine management system which gathers evaluates coordinates and implements all torque requirements. The engine management system fitted to 1992 model year cars can also be interrogated using the mastercheck test equipment refer to chapter a for details. Mmotronic system memotronic system medmotronic system. The different alternatives are shown in the table below. Thisis necessary due to the added complexity and increased power output of the engine, the system provides a higher degree of mixture strength control than that provided by the kjetronic system. It processes incoming signals and transmits adjustment commands for controlling the subsystems.
Course goals introduce and define torquebased system architecture. It was only used in cars equipped with v8 gasoline engines. The 4 stroke ic engine varies its power by the source of mechanical and electronic systems to make the ic engine work to the optimum level that which can result in the variable power and fuel efficiency. Motronic can be used to control internalcombustion engines running on gasoline port fuel or direct injection, diesel, natural gas cng, liquid gas or ethanol as well as hybrid drives. Ssp 842003 motronic me 7 engine management system pdf download this manual may contain attachments and optional equipment that are not available in your area.
The motronic system takes fuel injection one step further, and incorporates an engine management system that also controls the ignition system. The idle speed is also fully controlled by the digital motronic unit, including fastidle during warmup. Inductive ignition systems gasolineinjection systems overview 16 m motronic engine management m motronic. By controlling both major systems in a single unit, many aspects of the engine s characteristics such as power, fuel efficiency, drivability, and emissions can be improved.
It was also utilized in the v8 variant of the discovery series ii. The origins of audi engine development can be traced back to a 19 4cylinder liquid cooled engine designed by august horch 18681951 in zwickau, germany. The basic functional principles are unchanged from the previous motronic me7 version of the system. This ecu was one of the first flash memory based ecus with. Bosch digifant engine management system jetronic motronic. Vw 842003 motronic me 7 engine management system pdf contains help for troubleshooting and will support you how to fix your problems immediately.
The marriage of ignition and fuel injection is a natural fit because they are completely reliant on. Information vw 842003 motronic me 7 engine management system this handbook has 6774901 bytes with 66 pages presented to you in pdf format page size. Gems engine management into the petrol versions of the p38 range rover after the 1999 model re vamp and stayed in service to the end of production. System overview 18 fuel system 20 operatingdata acquisition 28 operatingdata processing 38 operating conditions 42 integrated diagnosis 58 electronic control unit ecu 62 interfaces to other systems 64 m motronic engine management.
Fuel metering and ignition are optimally coordinated with one another. Please consult your local distributor for those items you may require. What it doesnt haveand its something weve come to take for granted in our obd ii worldis any diagnostic trouble codes. Perfect for all diy persons your doityourself specialist for service manuals, workshop manuals, factory manuals, owner manuals, spare parts catalog and user manuals. The motronic engine management system of the w8 engine enables high power output with minimal fuel consumption through adaptation to all operating modes. The gasoline engine management system electronically controls combustion parameters amounts of air and fuel and ignition timing to increase engine output and reduce emissions and fuel.
The system is designed to optimize the performance. The motronic system contains all of the actuators servo units, finalcontrol elements required for intervening in. What you are doing is making an old m20 8287 newer with updated electronics, intake and fuel system. The engine continues with variable valve timing vvt, electronic throttle control etc and full torque structure since initial engine introduction in the 2004 model year.
It was originally developed and first used in the bmw 7 series, before being implemented on several volvo and porsche. The system is designed to optimize the performance and efficiency of the engine. The rollsroyce owners club of australia kmotronic engine management system diagnosis using. This manual can be viewed on any computer, as well as zoomed take a closer look at the sample image for the most accurate information on the use of the. Motronic is an electronic control unit developed by bosch. Porsche 911 motronic engine management system overview 911. Fuel injection system the ke2jetronic fuel injection system is fitted to turbocharged engines. This course is an operational overview of the me 7 system, introducing the technician to the operating principles of the motronic me 7 engine management system. The primary difference between this motronic system and the previous generation of volvo lhjetronic engine management systems is the fact that ignition timing is controlled directly by the motronic pcm.
The heart of the motronic system is the electronic control unit j220. Motronic manifold injection motronic combines an injection system and an ignition system for engine management. Standardized communication interfaces and data formats support networking with all vehicle systems which influence the drivetrain. Direct petrol injection system with bosch motronic med 7 volkspage. This is quite a sophisticated petrol engine management system which is manufactured by bosch. Bosch supplies the engine management system used on discovery series ii and range rover beginning mid 1999 model year. System overview 18 fuel system 20 operatingdata acquisition 28 operatingdata processing 38 operating conditions 42 integrated diagnosis 58 electronic control unit ecu 62 interfaces to other systems 64 m motronic engine management modern electronics are opening up new perspectives in automotive design. In some vehicles, for not having distributor, the ignition timing control spark is commanded by rotation sensor, installed in the engine flywheel static system. Fuel enrichment during coldstart is achieved by altering the timing of the main injectors based on engine. Oct 20, 2015 this feature is not available right now.
Bosch engine management system bosch supplies the engine management system used on discovery series ii and range rover beginning mid 1999 model year. System overview 18 fuel system 20 operatingdata acquisition 28 operatingdata processing 38 operating conditions 42 integrated diagnosis 58 electronic control unit ecu 62 interfaces to other systems 64 mmotronic engine management modern electronics are opening up new perspectives in automotive design. The following table is a guide to the fuel paths marked by each blue arrow in figure 6. Self study program 842003 motronic me 7 engine pdf online. Self study program 941003 engine management systems pdf. This manual can be viewed on any computer, as well as zoomed and printed, makes it easy to diagnose and repair problems with your machines electrical system. The main difference between the two systems is the drive by wire capabilities of the me 7. Its motronic engine management system was stateoftheart back in 1983, with fully integrated control of both fuel and ignition being carried out by a single dme control module.
The system supports sequential fuel injection and waste spark ignition. Since the introductions of the djetronic fuel injection system in model year my 1968, the motronic. Porsche 911 motronic engine management system overview. Engine management systems volkswagen technical site. Always check technical bulletins and the audi worldwide repair information system for information that may supersede any. Diagnostics and spare parts from a single source product.
System setting conditions p powertrain b body c chassis u network code type 0 generic 1 enhanced 2 generic 3 either sub system 1 fuel or air 2 fuel or air 3 misfire 4 emission control 5 vehicle or idle speed 6 ecu or output circuit 7 transmission 8 transmission 9 sae reserved 0 sae reserved variable. Engine management systems bosch mobility solutions. Gasoline direct injection key technology for greater efficiency and dynamics. Ssp 842003 motronic me 7 engine management system pdf. Motronic engine management system opens up new dimensions in gasoline direct injection. By ensuring provision of the required cylinder charge together with the corresponding injected fuel quantity, and the correct ignition timing, the system furnishes optimal mixture formation and combustion. This feedback system allows the system analyse exhaust emissions so that fuel and spark can be continually optimised to minimise emissions. It differentiates from the lejetronic for having, in addition to the injection system, also the ignition system incorporated in the command unit. It features a lambda probe aggregated to the injection system, installed in the exhaust pipe.
The advanced engine management system is the development of a mid range cc ic engine. The rollsroyce owners club of australia k motronic engine management system diagnosis using blink codes. Intake process in stratified charge mode, the throttle valve is. The gasoline engine management system electronically controls combustion parameters amounts of air and fuel and ignition timing to increase engine. All eta engines used bosch motronic engine management systems that were calibrated for maximum fuel economy. Direct petrol injection system with bosch motronic med 7 design and function selfstudy programme 253 service. Among other things, several important conditions must be met before the engine management system can change over to stratified charge mode. Direct petrol injection system with bosch motronic med 7. Agenda technology development ecm logic terminology ignition system analysis engine management systems. Vw 842003 motronic me 7 engine management system pdf manufactured by the company volkswagen presented for you in electronic format page size 612 x 792 pts letter rotated 0 degrees. This page was last edited on 30 novemberat sequential fuel injection and knock control.
Vag ssp vag self study programs pdf online download. Pdf gasoline engine management systems and components. Self study program 842003 motronic me 7 engine pdf. Feb 12, 2019 bosch digifant engine management system jetronic motronic. Get free gasoline engine management motronic systems ebook 800 4191152 on todays andys auto sport short, we go.
Self study program 941003 engine management systems. M motronic combines all the electronic systems for engine control in a. There is a single output for the injectors, resulting in all injectors firing simultaneously. The motronic system contains all of the actuators servo units, finalcontrol elements required for intervening in the sparkignition engine management. If the above conditions are met, the engine management system can change over to stratified charge mode. Self study program 143 motronic 1992 20v engine v8 engine construction and operation pdf free online the motronic engine management system is known from the 20v engine turbocharged and v8 engine 3. Also in the motronic system, the tank ventilation valve known as canister valve. What it doesnt haveand its something weve come to take for granted in our obd ii.
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