請問VTEC 和i-VTEC差在哪裡阿？

ataru_chiu wrote:
我的車是Ferio就...(恕刪)

VVT Implementations
Aftermarket Modifications - Conventional hydraulic tappet can be engineered to rapidly bleed-down for variable reduction of valve opening and duration.
Alfa Romeo Twin Spark - TS stands for "Twinspark" engine, it is equipped with Variable Valve Timing technology.
BMW Valvetronic - Provides continuously variable lift for the intake valves; used in conjunction with Double VANOS.
BMW VANOS - Varies intake timing by rotating the camshaft in relation to the gear.
BMW Double VANOS - Continuously varies the timing of the intake and exhaust valves.
Ford Variable Cam Timing - Varies valve timing by rotating the camshaft.
GM VVT - Varies valve timing continuously throughout the RPM range for both intake and exhaust for improved performance in both overhead valve and overhead cam engine applications.(See also Northstar System).
GM DCVCP (Double Continuous Variable Cam Phasing) - Varies timing with hydraulic vane type phaser (see also Ecotec LE5).
Honda VTEC - Varies duration, timing and lift by switching between two different sets of cam lobes.
Honda i-VTEC - In high-output DOHC 4 cylinder engines the i-VTEC system adds continuous intake cam phasing (timing) to traditional VTEC. In economy oriented SOHC and DOHC 4 cylinder engines the i-VTEC system increases engine efficiency by delaying the closure of the intake valves under certain conditions and by using an electronically controlled throttle valve to reduce pumping loss. In SOHC V6 engines the i-VTEC system is used to provide Variable Cylinder Management which deactivates one bank of 3 cylinders during low demand operation.
Honda VTEC-E - Unlike most VTEC systems VTEC-E is not a cam switching system, instead it uses the VTEC mechanism to allow for a lean intake charge to be used by closing one intake valve under certain conditions.
Hyundai MPI CVVT - Varies power, torque, exhaust system, and engine response.
Lexus VVT-iE - Continuously varies the intake camshaft timing using an electric actuator.
Mazda S-VT - Varies timing by rotating the camshaft.
Mitsubishi MIVEC - Varies valve timing and lift.
Nissan N-VCT - Varies the rotation of the cam(s) only, does not alter lift or duration of the valves.
Nissan VVL - Varies timing, duration, and lift of the intake and exhaust valves by using two different sets of cam lobes.
Nissan VVT introduced with the HR15DE HR16DE MR18DE MR20DE new engines in september 2004 on the Nissan Tiida and north american version named Nissan Versa (in 2007); and finally the Nissan Sentra (in 2007).
Porsche VarioCam - Varies intake timing by adjusting tension of a cam chain.
Porsche VarioCam Plus - Varies intake valve timing by rotating the cam in relation to the cam sprocket as well as duration, timing and lift of the intake and exhaust valves by switching between two different sets of cam lobes.
Proton Campro CPS - Still under development, said to be based on Lotus technology which developed Porsche's VarioCam.
PSA Peugeot Citroën CVVT - Continuous variable valve timing.
Rover VVC - Varies timing with an eccentric disc.
Suzuki - VVT
Subaru AVCS - Varies timing (phase) with hydraulic pressure, used on turbocharged and six-cylinder Subaru engines.
Subaru AVLS - Varies duration, timing and lift by switching between two different sets of cam lobes. This system is nearly identical to Honda VTEC. Used by non-turbocharged Subaru engines.
Toyota VVT-i - Continuously varies the timing of the intake camshaft, or both the intake and exhaust camshafts (depending on application).
Toyota VVTL-i - Continuously varies the timing of the intake valves. Varies duration, timing and lift of the intake and exhaust valves by switching between two different sets of cam lobes.
Volkswagen - VVT introduced with the 1.8T engine. The intake timing intentionally runs advanced and a retard point is calculated by the ECU. A hydraulic tensioner retards the intake timing.
Volvo - VVT

cadelong3918 wrote:
有i的比較勇哦......(恕刪)

ataru_chiu wrote:
我的車是Ferio
...(恕刪)

ataru_chiu wrote:
VTEC要5500轉...(恕刪)