199004532 - E5030 PETROL ENGINE ELECTRONIC MANAGEMENT - DESCRIPTION

DESCRIPTION

An electronic control system supervises and governs all engine parameters to optimise performance and fuel consumption by means of a real-time response to different service conditions.The system is managed by a single control unit which controls both ignition and injection.

Depending on the signals received from numerous sensors, the control unit controls the injectors connected to it, managing the following systems:

  • fuel supply;
  • air supply;
  • accelerator pedal;
  • engine cooling;
  • combustion control - Lambda sensors;
  • control of exhaust with catalytic converter;
  • fuel vapour recirculation.
The throttle body is also controlled electronically by the control unit: throttle opening is calculated in accordance with specific software mapped inside the engine control unit. This system does away with the need for a mechanical link between accelerator pedal and throttle body.This engine features the innovative intake control system known as PDA:To allow fast and regular combustion of the fuel load, the level of swirl must be significantly increased. This function is carried out by a system that manages the flow of air drawn in from the intake port openings, known as PDA. In particular, the system modulates the intake port openings, which are also a special asymmetrical design.When necessary, a slider valve closes one of the two openings: in these conditions the intensity of the swirl is high; in other conditions, e.g. in full load, both ducts are open and the flow efficiency is higher.The adjustment is carried out by means of a valve known as PDA, operated by a digital, duty cycle signal coming from the engine management control unit.A slider position sensor completes the information sent to the engine management control unit for the management of the port modulation.Thanks to the electronic management described above and the innovative PDA system, this engine conforms to the most recent emission control regulations (EURO 4).For more details    See descriptions 1056 PETROL INJECTION SYSTEM The system is also controlled by dedicated relays in the engine compartment control unit. Lines supplying the control unit and various system components (sensors and actuators) are protected by dedicated fuses that are also located inside the engine compartment control unit.