The role of the VTC system
The introduction of the VTC mechanism allows the valve timing of the valve to be "intelligently" adapted to changes in engine load. The role of the VTC in supporting the VTEC system during engine operation is mainly used in three aspects.
1. Best idle/lean burning area
In this area, the VTC system stops functioning, and at this time, the valve overlap angle is the smallest, and due to the action of the VTEC, a strong eddy current is generated, thereby making the engine idle operation stable.
2. Optimal fuel consumption and exhaust control area
In this area, the VTEC acts to generate a strong vortex, which makes the combustible mixture mix more evenly. At the same time, the VTC acts to increase the valve overlap angle and re-inhale some of the exhaust gas into the cylinder, which acts as EGR. Optimal fuel consumption and exhaust control.
3. Optimal torque control area
In this area, the output torque of the engine is maximized by the control of the VTC with the most appropriate valve overlap angle and the function of the VTEC system.