Question

What engine management system allows the camshaft to control the amount of the valve opening by pivoting the rocker arm at a different angle, which affects the opening event?

A. Ford variable nockenwellen steuerung (VANOS).
B. Mercedes variable nockenwellen steuerung (VANOS).
C. Toyota VVT-IE Valvetronic.
D. Honda Variable Valve Timing (VVT).

Answer 1

The correct engine management system is C. Toyota VVT-iE Valvetronic, which uses advanced variable valve timing to continuously optimize valve lift, improving engine efficiency and power.

Step-by-step explanation:

The engine management system that allows the camshaft to control the amount of valve opening by pivoting the rocker arm at a different angle, which affects the opening event, is C. Toyota VVT-iE Valvetronic. This technology adjusts the lift of the intake valves to optimize engine performance at varying loads and speeds. It is a more advanced form of variable valve timing (VVT) which, unlike the systems used by Honda (VTEC) or the BMW VANOS system, can continuously vary the valve lift for improved control over engine breathing, leading to better efficiency and power output.