Review of engine management systems

Engine management systems and their various modifications there is a fairly large amount, and in them is not so easy to understand even an experienced person, let alone a beginner. We begin our review of engine control systems with consideration of species that ever mounted on vehicles. Gamma vpryskovyh automobile engines: 1.7-liter engine volume 16-valve ("ten" family car VAZ Kalina) engine volume 1.6 liter 16-valve (car VAZ "tenth" family of front wheel drive) engine volume 1, 8 liter 8-valve (four-wheel drive and zadneprivodnye VAZ) engine volume 1.5 liters 8-valve (VAZ cars with rear wheel drive) engine volume 1.7 liter 8-valve (VAZ front wheel drive) engine volume 1.6 liters 8-valve (VAZ front wheel drive) Varieties of injection systems fitted to cars VAZ. To more easily available and understand all types of engine management systems VAZ, divide them into several groups according to different criteria: 1. Manufacturer of engine management systems (DMS). For VAZ cars are used not only to the engine management system of companies General Motors, Bosch, but COURT domestic producers. If you need replacement of any element of the injection system (wires, harnesses, oxygen sensors, DMRV). For example, the Bosch on another production, then it would be unrealistic, since the parts are not interchangeable. 2. Controller. At VAZ can meet several types of controllers: the production of Russia: January-5 production Bosch M1.5.4; the Bosch MR7.0; production in Russia Vist-5 production General Motors ISFI-2S; production in Russia in January-4 production of General Motors EFI-4. The latter group are no longer installed on the VAZ. As it may seem at first glance, the controller is not so much. However, it is only at first glance, the reality on the procedure more difficult. For example, the controller M1.5.4 which is designed systems without neytralizatopa can not be installed on a system with a converter. Considered, such devices are not interchangeable. All that said above, it is fair for the controllers "January" and "Whist." MR 7.0 controller that works in the "Euro-2" you can not install on machines with a "Euro-3. But the opposite effect, setting the controller MP 7.0 framework of the Euro-3 "on the machine where the toxic standard Euro-2" is possible, but we must make the necessary firmware. 3. Type of injection. On this parameter injection system can be divided into two subtypes: single-point system (central) and multipoint (distributed) injection. In the system of central injection of fuel is fed to the throttle in the intake pipe. In a multi-point fuel injection systems has its own injector for each cylinder, fuel supplies in them before the inlet valve. In some systems, injection isolated on nefazirovannye and phased array systems. In the phased array - the fuel injected one by one for each nozzle. In nefazirovannyh fuel can be injected or multiple nozzles or all at once. 4. Emission standard. VAZ automobile plant sells its products not only in our country but also abroad. As we know, in European countries now operating emission standard Euro-4 ", in contrast to our country, where the toxicity is still controlled by the norms of Euro-3". AvtoVAZ at the plants at different times produce cars that meet the requirements of "Euro-0" to "Euro-4. Machines that meet the standards "Euro-0" are not equipped with converters, gasoline vapor recovery systems, oxygen sensors. To distinguish the car with the levels of toxicity "Euro 2 and Euro-3" have to look at the presence of sensor bumpy roads, assess the appearance of the adsorber, and the number of oxygen sensors in the exhaust system engine (the "Euro 3" of their two times). Overview of the engine management system. First you need to consider the system of governance in VAZ, produced a rich set. Auto then corresponds to all standards of toxicity "Euro 3". The composition of these cars is as follows: temperature sensors of the liquid cooling - is converted into an electric signal value of coolant temperature. Knock sensor - is converted into an electrical signal of the mechanical noise of the engine sensors phases - their signals to inform the controller that at top dead center is the first cylinder piston on the compression stroke fuel mixture. Location sensors throttle - is converted into an electrical signal, the angle of the throttle valve. Crankshaft position sensor - converts into an electrical signal to the angular position of the crankshaft. Controllers - the main components of the engine management system. Evaluate information on the current mode of operation of the engine from the sensors, control actuators, perform fairly complex calculations. Mass Flow of air - is converted into an electrical signal, the mass of air that enters the cylinders. Speed ??sensor - converts into an electrical signal values ??speed of the car Diagnostic oxygen sensors - is converted into an electrical signal values ??of the concentration of oxygen after the catalyst in the gases that have already worked out. Administering oxygen sensors - is converted into an electrical signal values ??of the concentration of oxygen to the converter in the exhaust gases. Sensors bumpy roads - is converted into an electrical signal magnitude vibration body. Ignition modules - the elements of the ignition system, which accumulate the energy for ignition in the engine and ensure that the electrode spark plug high voltage. Regulators idling - the system that supports idle, they regulate the flow of air into the engine. Diagnostic connectors - to connect the elements of the diagnostic equipment in the system on-board diagnostics. Fuel pressure regulator - the elements of the fuel supply system, providing a constant flow temperature of the fuel pressure. Diagnostic lamp MIL - elements of the system on-board diagnostics that inform about the presence of a fault in the OVC driver. Converters - the elements of emissions control in the injection system engine. Fuel filters - fuel system components, fine filters. Valves purge adsorber - elements of gasoline vapor recovery system, control the process of purging the adsorber. Modules fuel pump - fuel system components, providing in the fuel line pressure increases. Adsorbers - the main elements of the gasoline vapor recovery nozzles - fuel system components that provide the fuel metering.