What is VVT-i engine?

For car users must have felt the alerts Toyota engine reliability tech-Variable Valve Tuning-Intelligent (VVT-i). Yes, now replace the VVT-iToyota, that has begun to be appliedin 1991 at the Toyota 4A-GE engine 5cylinders.

Machine which was first introducedin 1996 has been used in most carsof Toyota. In addition the machine is claimed to make the engine moreefficient and powerful,environmentally friendly and fuel efficient. Then how the systemworks so as to establish a satisfactory result.

As described Wikipedia, the workings of this technology are quite simple. To calculate the time of opening and closing valve (valve timing) is optimal, the ECU (Electronic Control Unit) to adjust the engine speed, intake air volume, throttles position (accelerator) and the water temperature. In order for the target valve timing is always reached, camshaft or crankshaft position sensor gives a signal in response correction.

Easily VVT-i system will continue to correct the valve timing or line out of fuel and air.Adjusted by stepping on the accelerator and expenses incurred in order to produce optimumtorque at each wheel and engine load. With so will result in optimal power, fuel-efficient and environmentally friendly.

Toyota recorded a few variants are adopting technologies VVT-i like Toyota Avanza, ToyotaInnova, Toyota Yaris and Toyota Vios.