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EC-40 < FUNCTION DIAGNOSIS > [VK56DE] INTAKE VALVE TIMING CONTROL INTAKE VALVE TIMING CONTROL Description INFOID:0000000005149073 SYSTEM DESCRIPTION *: This signal is sent to the ECM through CAN communication line This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake valve. The ECM receives signals such as crankshaft position, camshaft position, engine speed, and engine coolant temperature. Then, the ECM sends ON/OFF pulse duty signals to the intake valve timing (IVT) control sole- noid valve depending on driving status. This makes it possible to control the shut/open timing of the intake valve to increase engine torque in low/mid speed range and output in high-speed range. Sensor Input signal to ECM function ECM Actuator Crankshaft position sensor (POS) Engine speed Intake valve Intake valve timing control Intake valve timing control position sensor Intake valve timing signal Engine coolant temperature sensor Engine coolant temperature Wheel sensor Vehicle speed* PBIB3276E |