Dual VVTi Variable Valve Timingintelligent System General
• The Dual VVT-i system is designed to control the intake and exhaust camshafts within a range of 40° and 35° respectively (of Crankshaft Angle) to provide valve timing that is optimally suited to the engine condition. This improves torque in all the speed ranges as well as increasing fuel economy, and reducing exhaust emissions.
- Exhaust Camshaft Timing OCV* (Bank 1)
285eg57
285eg57
*: Oil Control Valve
• Using the engine speed signal, vehicle speed signal, and the signals from mass air flow meter, throttle position sensor and engine coolant temperature sensor, the ECM calculates optimal valve timing for each driving condition and controls the camshaft timing oil control valve. In addition, the ECM uses signals from the camshaft position sensor and the crankshaft position sensor to detect the actual valve timing, thus providing feedback control to achieve the target valve timing.
- ECM
221eg16
221eg16
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