This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Optimization of an Electronic-Throttle-Control Actuator for Gasoline-Direct-Injection Engines
Technical Paper
1999-01-0542
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
An electronic throttle actuator with a faster response time and reduced peak current was aimed for the DI-G engine. An qualitative analysis of the drivetrain of the throttle actuator is performed. It was found that to obtain faster response, inertia, motor inductance, and motor resistance need to be reduced, while the reduction gear ratio has an optimal value. On the other hand, to reduce the peak current, motor inductance, motor resistance and the reduction gear ratio must be increased. Based on this analysis, a more detailed numerical calculation is done and design parameters are optimized. An actuator with optimized parameters is prototyped and showed 20% faster response time and 50% lower peak current.
Recommended Content
Authors
Citation
Kowatari, T., Tokumoto, S., and Usui, T., "Optimization of an Electronic-Throttle-Control Actuator for Gasoline-Direct-Injection Engines," SAE Technical Paper 1999-01-0542, 1999, https://doi.org/10.4271/1999-01-0542.Also In
Electronic Engine Controls 1999: Sensors, Actuators, and Development Tools
Number: SP-1418; Published: 1999-03-01
Number: SP-1418; Published: 1999-03-01
References
- Streib, H. Bischof, H. Electronic Throttle Control (ETC): A Cost Effective System for Improved Emissions, Fuel Economy, and Driveability SAE Paper 960338
- Mausner, E.S. Pfalzgraf, M. The VDO Modular Throttle Body Concept for Electronic Engine Control SAE Paper 900782
- Bidan Voverie Chaumerliac Nonlinear Control of a Spark Ignition Engine Oct. 1994
- Lenz, U. Schroeder, D. Transient Air-Fuel Ratio Control Using Aritificial Intelligence SAE Paper 970618
- Ohyama, Y. Ohsuga, M. Fujieda, M. Air Flow Metering and Combustion Control for Spark Ignition Engines SAE Paper 930215