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INTAKE VALVE TIMING CONTROL EC-991 < SYSTEM DESCRIPTION > [VQ40DE FOR MEXICO] C D E F G H I J K L M A EC N P O INTAKE VALVE TIMING CONTROL Description INFOID:0000000009481689 SYSTEM DESCRIPTION *: This signal is sent to the ECM via the 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 control solenoid 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 ECM function Actuator Crankshaft position sensor (POS) Engine speed and piston position Intake valve Intake valve timing control Camshaft position sensor (PHASE) Engine coolant temperature sensor Engine coolant temperature Wheel sensor Vehicle speed* PBIB3279E |