EMISSION CONTROL SYSTEM


  1. FUNCTION OF MAIN COMPONENTS


    1. The main components of the EGR system are as follows:

      Components Function
      Vacuum Sensor Assembly Detects the pressure in the intake manifold and sends signals to the ECM for EGR control.
      EGR Valve Assembly Opens and closes based on signals from the ECM and controls the flow rate of the exhaust gas in the EGR bypass.
      EGR Cooler Assembly The EGR cooler cools the exhaust gas to improve EGR efficiency.
      Hybrid Vehicle Control ECU Sends signals such as the accelerator pedal position sensor signal to the ECM.
      ECM Based on the signals received from the sensors, the ECM determines the EGR volume in accordance with the engine operating conditions.

  2. SYSTEM CONTROL


    1. For the EGR system, an amount of EGR gas, which is regulated in accordance with the engine conditions, is allowed to flow into the intake passage, reducing the peak temperature in the engine combustion chamber and achieving low fuel consumption.

    2. By sensing the engine driving conditions and the actual amount of the EGR valve assembly opening, the ECM operates the EGR valve assembly and throttle control motor to regulate the amount of exhaust gas that is recirculated.