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Home >> Infiniti >> 2014 >> Q70 3.7, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Control System (Introduction) (Hybrid)) >> System Description >> System >> Intake Valve Timing Control >> INTAKE VALVE TIMING CONTROL: System Description >> System Description

System Description

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Fig 1: Identifying Intake Valve Operating Angle
G09417173Courtesy of NISSAN NORTH AMERICA, INC.

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 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.

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