That system almost eliminates the throttle plate altogether, favoring an open throttle and controlling power output by
varying cam timing and lift.
Not exact matches
The «intelligent» portion of the system is its ability to continuously
vary the
timing (phasing) of the intake
cam relative to that of the exhaust camshaft.
The intake
cam timing is
varied based on input from sensors that monitor rpm,
timing, throttle opening,
cam position and exhaust air - fuel ratio.
By
varying the intake valve
timing, the
cam phaser system improves engine smoothness at idle and optimises inlet flow dynamics for maximum performance.