What kind of computers do we carry with us every day?
To begin with, it is important to mention that the electronic control unit that controls the operation of the car engine is just one of a series of computers that we find in today's cars. In addition, modules for monitoring the airbag system, the so-called body control computers take care of the central locking, power windows, etc., there is also a computer that monitors the operation of the (electric) power steering, for the brake system (ABS, ESP etc.) takes care of special computers, automatic and semi-automatic transmissions have their own separate computer to control certain functions, there is also a cruise control unit, and we should not forget the seemingly "unimportant" computers of the control unit that take care of electric starters, air conditioning device, telephone, audio system, etc.
Many of these computers are interconnected, such as e.g. cruise control units (constant speed vehicle maintenance units) and engine control units, since cruise control determines how fast we will move, which in turn directly affects the engine management (fuel injection, etc.). In any case, every time you turn the engine start key (or push the switch), a dozen separate computers will come to life in the average car.
Let's say that some surveillance computers are sometimes connected, ie. they are in the same housing (this would, for example, be logical for the cruise control and engine control unit). But now we would complicate this topic too much to start a discussion of how many monitoring units work independently, and how many of them are integrated with some other systems. After all, it varies from manufacturer to manufacturer. In principle, we can say that one motherboard - represents one control computer (so now you disassemble the car and count all Motherboard and in doing so, lure all the insects that have lurked there, like this one from our opening image, which is comfortably housed on a micromechanical sensor whose structure is visible only under the microscope).
Electronic engine control unit, ECU, ECM, Central or whatever you like…
An electronic control module (ECU - Electronic Control Unit or ECM - Electronic Control Module) is in fact an impersonal metal or plastic box with a series of electrical connectors on the outside and extensions for mounting the box in the car, while the inside is filled with some chips. , printed circuit boards and other electronic wonders. The interior of the ECU actually looks like a small computer, which it actually is.
For comparison, let's just say how today's electronic car engine control unit (ECU) can have a 32-bit 40-MHz processor. This is, seemingly, almost ridiculous compared to the average PC, but it is necessary to take into account how the car ECU "deals" with specialized and much more efficient code (software). Thus, the average car ECU takes up less than 1 MB of memory, while the average computer's memory contains several GB of program code of all possible types.
The basis of ECU operation is based on processing input parameters coming from certain parts of the engine and sending data to some other components of the same, depending on the current driver's request (accelerator pedal pressure, gear…). The biggest part of the job that the ECU does is control the ignition timing and the amount of fuel delivered to the engine, monitoring the engine idling, controlling the VVT system (variable camshaft system) and the like.
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Golf V 1,9tdi 77kw 2006g turns off while driving when returning to a lower speed and then for a long time until it starts, does it have anything to do with the ecu of the engine, nozzles and everything else checked ...
Postovani,
What does the mark on the motor computer s2000rpm "IND. MOD."
SPECIFICALLY I have a problem with the engine computer on my car and I need to find a replacement. I found a computer that is the same in all numbers except the ind. mod. On my old computer is IND. MOD and on the new IND. MOD - B?