Optimization of an Electronic-Throttle-Control Actuator for Gasoline-Direct-Injection Engines Mechanical Engineering Research Laboratory, Hitachi Limited

Format:

Conference/Event

Author/Creator:

Kowatari, Takehiko, author.

Conference Name:

International Congress & Exposition (1999-03-01 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1999

Summary:

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

Notes:

Vendor supplied data

Publisher Number:

1999-01-0542

Access Restriction:

Restricted for use by site license