Uniqueness And Satisfaction of i-VTEC Engine

WHAT MAKES THE HONDA i-VTEC ENGINE SO UNIQUE? 

Honda developed the i-VTEC technology, also known as intelligent variable valve timing and lift electronic control, to reduce the amount of fuel used by Honda automobiles. The VTEC system switches between two camshaft profiles hydraulically. Engineer at Honda Ikuo Kakitani developed this technology. The engine can effectively have numerous camshafts thanks to Honda i-VTEC. With this technology, however, the engine's computer has the ability to vary the cam timing and activate different camshaft lobes as the engine passes through various RPM ranges. The amazing aspect of this technology is that it allows for the simultaneous use of high- and low-speed camshafts in the same engine. The primary goal of Honda i-VTEC is to achieve maximum engine performance at all RPMs.

HOW i-VTEC WOKS??

Let's first look at how a typical engine functions in order to better comprehend Honda i-VTEC technology.

The engine's air intake and exhaust venting are controlled by valves. The valves are managed by the camshafts. The camshaft uses spinning lobes to open and close the valves.

According to research, there is a significant relationship between how the camshaft's lobes are machined and how the engine responds to changes in RPM.

In order to better comprehend, let's give an example. If we run an engine at merely 10 or 15 RPM, the piston will take a few seconds to complete a cycle. Just keep in mind that a typical engine cannot be run this slowly, but let's assume for a moment that it can

When the piston starts to descend during the intake stroke, the intake valve would open, causing the camshaft to grind. The intake valve would close just as the piston was about to bottom out.

As soon as the piston bottoms out at the end of the combustion stroke, the exhaust valve will open, and it will close when the piston completes the exhaust stroke. As long as we can run the engine at a relatively low speed, this is fantastic.

The bad news is that this camshaft layout does not work well when the RPM is raised.

The valves open and close 2,000 times per minute if the engine is turning at 4,000 RPM. As a result, the piston cannot move the air into the cylinder in the minimum amount of time when the intake valve opens at the top of the intake stroke.

As a result, at higher RPM ranges, you need the intake valve to open before the intake stroke so that the air may enter the cylinder freely throughout the duration of the intake stroke and the piston to start moving down.

The valves must be opened and closed differently for low and high speeds if you want your engine to run at its best.

You would encounter a challenge without i-VTEC technology. When a good low-speed camshaft is installed, the engine's performance at high speeds suffers. Additionally, if a good high-speed camshaft is used, the engine's performance at low speeds suffers. In other situations, it can even make starting the engine more difficult.

Now, the i-VTEC technology makes many camshafts in Honda engines necessary for efficient operation. Honda i-VTEC vehicles have strong performance and low fuel consumption because of this.

With this kind of technology, Honda Malaysia provides the Honda City and the Honda Civic.

You will now be fully aware of what is occurring within your engine the next time you "go into VTEC" while operating your Honda.