The control software of the engine management system needs to make decisions, for example injection quantities, injecting timing, target boost and rail pressures and so forth.
It is merely a specially adapted equivalent with software designed for the task of controlling and monitoring engine function. In short, the engine management system differs very little from our desktop computers. Despite its specialism, the engine management computer shares a lot in common with the average Desktop or Laptop computer that we use everyday, it has a central processor, RAM memory and a permanent datastore for its operating system and control software.
Specialist circuits on the PCB (circuit board) handle short and open circuit detection, and dedicated microchips (ASIC - Application specific integrated circuits) provide complex high speed signal analysis and actuator control. The software on this computer is capable of making decisions and checking sensors hundreds and even thousand times a second. This computer is responsible for all aspects of engine operation as well as safety factors, emissions control and fault management. The control of the engine is handled by one computer, confusingly known under a few names - ECU (Electronic Control Unit) ECM (Engine Control Management) and so forth. The vehicles found on the road today can contain tens of computers, this is hardly surprising - advances in technology allows a computer to control engine function more finely and predictably than any analog electrical or mechanical alternative, and the cost of embedded computing has fallen dramatically. Vehicle Remapping? It's all about computing This article contains some technical content, we recommend taking a read to understand the remapping process.
0 kommentar(er)
