CAST your mind back, if you want. It is new in your memory up to a Ford Cortina? Seldom seen, like now! Your grandfather or maybe even the parent disk? Ford has sold 3 million of them in Britain. Here are some important statistics, as I remember. Please do not quote them from memory as a (unclear) are. Camshaft, cam belt, 2-liter eight-valve, fuel, carburetor, ignition points. 80-90 HP!
Fast forward to the Ford Mondeo Mk 4 Leading beltcam, 2 liters, 16 valves, fuel injection, electronic ignition production up to 150 hp. So there are a lot more power, lower emissions and lower fuel consumption than the previous Ford Cortina. How it works?
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The modern engine control unit is electronically controlled. Electronic ignition means that the spark, the fuel is released at the right time, when the piston rises to near the top there is a hyphen. This simply does not happen very precise in Cortina engine, becauseAnd 'mechanically operated switch. Many of pulleys and shafts for wear and error prone. Electronic ignition is probably the greatest contribution to a better engine efficiency.
Along with electronic fuel injection. A precise control of fuel into the engine pulse. Accurate, tiny droplets (high pressure) pulse, so that more fuel is burned in the engine and converted into a movement rather than released into the atmosphere in the form of unburned fuel. The ECU (theMotor control brain), these electronic fuel injection, with the help of various sensors to "tell", said the volume and the air temperature in the engine at the same time with her, because the gas is open. To keep on guard and pay attention to sensor throttle position, air temperature sensor, mass air pressure sensor and knock sensor. This last sensor (the anti-stroke sensor) 'is used to detect pockets of air and fuel combustion outside the normal ignition of the flame front,which allows the engine or the result of higher fuel costs in the "damage.
Compare electronic fuel injection, as I described with the fuel supply to the carburetor of the Cortina. The "carb" is to mix the task well enough, but it was fuel and air, throttle opening, the "rich" (when the engine is cold) and the mixture of 'thin' air (depending on air temperature and motor), and the supply of fuel to balance at least four cylinders usually a single carburetor.
No wonder then that figureMotor control is much more efficient. After influential automotive sources "are based on modern cars as well as electronic engineering. This engine management is crucial to maintain if a vehicle is working properly."
Mechanically, the engine has developed the most modern, synthetic oil is likely to come across (more durable, more resistant, reducing friction and heat dissipation properties rather than moreunformulated mineral oil) and has the great advantage of electronic ignition of his predecessors. All these elements and more to engines mechanically survive much longer pre-electronic units.
Unfortunately for drivers of modern cars, while far superior to certain technological capabilities, it can cause problems in the electronic part of things.
Engine management (ECU essential sensors, etc.) requires a diagnosis in case of failure or error. ACan see where this is the owner of the hand and removed the main or sole trader garages with expensive diagnostic equipment and to identify the problem. Sometimes it can be the "failure" or errors caused by something as small as an electrical connection failure.
Contribution to the problems of engine management is the increasing number of sensors is that the cars of today. There are methods that may seem crazy. The emission standards are more demanding (€ 4 and5). The goal is to reduce g / km of CO2 emissions to reach this level of EGR (exhaust gas recirculation) valves are now installed and connected to the MAP sensor, and in turn to a more sophisticated unit.
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