Engine Electronic Management
In the old times the diesel engines had mechanical inline or rotary pump for fuel injection and throttle control (the engine speed is determined by injected fuel amount). Nowadays diesel engines have many sensors that give information about the engine rpm, temperature, oil and boost pressure etc. Also there are many controlled devices that engine control unit is operating, such as injectors, fuel pump, turbo actuator (it installed), EGR and SCR systems, throttle control etc.
Electrical devices on the engine are all connected to electronic control unit (ECU). ECU takes information of sensors (inputs) and adjusts the actuators (outputs) accordingly.
Additionally to engine control the ECU has a key role in engine safety also. It can turn the engine off when oil pressure is gone or if engine temperature is too high. Thus it is possible to avoid bigger damages if there is some oil leakage and then oil pressure goes down due to lack of oil.
Electrical devices on the engine are all connected to electronic control unit (ECU). ECU takes information of sensors (inputs) and adjusts the actuators (outputs) accordingly.
Additionally to engine control the ECU has a key role in engine safety also. It can turn the engine off when oil pressure is gone or if engine temperature is too high. Thus it is possible to avoid bigger damages if there is some oil leakage and then oil pressure goes down due to lack of oil.