A Study on Microcomputer-Controlled Variable Valve-Timing System

950976

02/01/1995

Event
International Congress & Exposition
Authors Abstract
Content
This paper deals with the development of a system to control the inlet-valve-timing of a single - cam gasoline engine. With this scheme the camshaft can be phased continuously to any position within 60 crank degree range by an electronic control unit to reflect changes in engine operating conditions. A control strategy was established which would optimize power at wide -open throttle and minimize emissions at small throttle openings. For this system, a mechanical self-protection device and a fail -safe system have been developed. Development testing has shown that with the proper control strategies, the power, emission, and idle quality of the engine can all be improved.
Meta TagsDetails
DOI
https://doi.org/10.4271/950976
Pages
10
Citation
Li, J., and Zhang, K., "A Study on Microcomputer-Controlled Variable Valve-Timing System," SAE Technical Paper 950976, 1995, https://doi.org/10.4271/950976.
Additional Details
Publisher
Published
Feb 1, 1995
Product Code
950976
Content Type
Technical Paper
Language
English