Fuel pressure control method
The fuel pressure inside the common rail is regulated by the electronic control unit by controlling the displacement of the high-pressure pump and the opening and closing time of the fuel injectors. Controlling the displacement of the high-pressure pump can be achieved by controlling the speed of the high-pressure pump, and it can be dynamically adjusted according to the working conditions of the engine. At the same time, the electronic control unit can adjust the fuel injection quantity and injection time by controlling the opening and closing time of the fuel injector, thereby achieving control of the fuel injection pressure.
