Development of Variable Valve Timing System Controlled by Electric Motor

Event
SAE World Congress & Exhibition
Authors Abstract
Content
To meet the requirements for lower fuel consumption and emissions as well as higher performances, a “Variable Valve Timing - intelligent by Electric motor (VVT-iE)” system has been newly developed. The system has been firstly adopted to the intake valve train of the Toyota's new 4.6 and 5.0 litter V8 SI engine series. The VVT-iE is composed of a cam phasing mechanism connected to the intake camshaft and brushless motor integrated with its intelligent driver. The motor-actuated system is completely free from operating limitation caused from hydraulic conditions. This enjoys an advantage for reducing cold HC. The system also presents further reduction in fuel consumption.
Meta TagsDetails
DOI
https://doi.org/10.4271/2008-01-1358
Pages
6
Citation
Hattori, M., Inoue, T., Mashiki, Z., Takenaka, A. et al., "Development of Variable Valve Timing System Controlled by Electric Motor," SAE Int. J. Engines 1(1):985-990, 2009, https://doi.org/10.4271/2008-01-1358.
Additional Details
Publisher
Published
Apr 14, 2008
Product Code
2008-01-1358
Content Type
Journal Article
Language
English