Development of 1.8L i-VTEC Gasoline Engine for 2006 Model Year Honda CIVIC
|
Accession number;06A0236512
|
| Title;Development of 1.8L i-VTEC Gasoline Engine for 2006 Model Year Honda CIVIC |
| Author;
SEKO KAZUYUKI
(Honda R & D Co., Ltd.)
TAGA WATARU
(Honda R & D Co., Ltd.)
TORII KENJI
(Honda R & D Co., Ltd.)
NAKAMURA SATOSHI
(Honda R & D Co., Ltd.)
AKIMA KAZUHIRO
(Honda R&d (ohio))
SEKIYA NORITAKA
(Honda R & D Co., Ltd.)
|
Journal Title;Honda R&D Tech Rev
|
Journal Code:L0353A
|
ISSN:0915-3918
|
|
VOL.18;NO.1;PAGE.8-15(2006)
|
| Figure&Table&Reference;FIG.23, TBL.1, REF.9 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Honda has developed a lightweight and compact next-generation 1.8L i-VTEC 4-cylinder gasoline engine that offers a superb balance of power and environmental performance (high fuel economy and low emissions). The i-VTEC system in the new engine provides high power when the vehicle is accelerating by operating the valves with a cam that produces maximum power. When the engine is operating under a low load, e.g. when cruising, the system switches to a cam with delayed valve closure timing and simultaneously opens the electronically-controlled throttle in order to reduce pumping losses and increase fuel economy. The 2006 CIVIC in which the new engine is fitted has achieved a high level of fuel economy, obtaining 17.0 km/l in Japanese 10-15 mode, a 5% increase over the level required by Japanese 2010 fuel economy standards. The use of a variable-length intake manifold has balanced low- to medium-speed torque with high power. The integration of the cylinder head with the exhaust manifold and the employment of a high-density close-coupled two-bed catalyst and high-accuracy adaptive air-fuel control has enabled the achievement of an emissions level 75% below the level required by Japanese 2005 regulations. In addition, noise and vibration have been reduced by employing a lower block structure that increases the rigidity of the crankshaft support structure. (author abst.) |
|
|
|
Related Articles;
|
|
