Injection control method for an internal combustion engine, in particular a diesel engine, and corresponding control system

An injection control system for a diesel engine equipped with a fuel injection system of the common rail type, comprising

• an input terminal connected to an engine control block;
• first and second output terminals connected to injector power drivers and a pressure regulator of said injection system, respectively;
• a memory storing characterizing parameters of said engine operation,
• first and second controllers for controlling the injector power drivers and the pressure regulator, respectively;
• and
• a controller management block connected to said input terminal through the memory and connected to said output terminals through the first and second controllers, said controller management block receiving, from a further input terminal of said injection control system, measurement signals concerning engine variables, and outputting, through said first and second controllers, suitable control signals to said injector power drivers and said pressure regulator.

A diesel engine system, comprising:

• a diesel engine equipped with a common rail fuel injection system having a common rail and a plurality of fuel injectors;
• a pressure regulator coupled to the common rail and structured to regulate fuel pressure in the common rail;
• a power driver coupled to the fuel injectors and structured to drive the fuel injectors;
• and
• an injection controller that includes:
• a first input terminal connected to receive measurement signals concerning engine variables;
• an injector driver controller having an output structured to control the power driver;
• a pressure controller having an output structured to control the pressure regulator;
• a parameter memory structured to store characteristic parameters of the diesel engine;
• and
• a controller manager connected to the first input terminal, memory, injector driver controller, and pressure controller, and being structured to compare the characteristic parameters from the memory with the measurement signals, and in response, control the pressure controller and injector driver controller.