Table of Contents
What does VVTLi mean?
Variable Valve Timing with intelligence
VVT-i, or Variable Valve Timing with intelligence, is an automobile variable valve timing technology developed by Toyota.
What is the difference between VVT-i and VVTLi?
What is VVTLi – Variable Valve Timing and Lift Intelligent System? VVTL-i is a system whose principle of functionality has been derived from VVT-i but it is different in a way that it alters the valve timing as well as the valve lift(duration).
Is variable valve timing the same as VTEC?
VTEC is a type of variable valve-timing system developed and used by Honda. It stands for Variable Valve Timing & Lift Electronic Control. Like most other variable-valve timing systems, VTEC varies oil pressure to shift between different cam profiles.
What VVTi stands for?
Variable Valve Timing-intelligent
Tokyo―TOYOTA MOTOR CORPORATION announced today the development of its new “Variable Valve Timing-intelligent” (VVT-i) technology, which increases performance and fuel economy.
What is Honda Idtec?
With Honda’s i-DTEC technology, Honda built the lightest diesel engines in their class. According to Honda, this is achieved by redesigning all the individual components to minimize their weight and size while also reducing the thickness of the cylinder walls to 8mm.
What is the difference between VVVT-I and VVTL-i?
VVT-i (Variable Valve Timing with intelligence) is a similar system developed by Toyota and has several variants among which VVTL-i (Variable Valve Timing and Lift intelligent system) is analogous to VTEC.
What is the difference between variable valve lift and variable valve timing?
Variable valve lift is used to enhance performance depending on the RPM and load, while variable valve timing is typically used for emissions control (lowering combustion temperatures and thus reducing NOx), but also has performance and efficiency benefits as well.
How does the Toyota VVT-i work?
Toyota introduced VVT-i in 1996. The timing of the intake valves varies by adjusting the relationship between the camshaft drive (belt, scissor-gear or chain) and intake camshaft. Engine oil pressure is applied to an actuator to adjust the camshaft position.
What is i-VTEC technology?
Honda introduced i-VTEC technology in Honda’s K-series four cylinder engine family in 2001. With this technology The intake camshaft is capable of advancing between 25 and 50 degrees when the engine is running. Phase changes are implemented by a computer controlled, oil driven adjustable cam gear.