Nissan Motor Company Limited

Taichi Andou

Kenji Suzuki

Takeshi Miyamoto

Toshio Hashimoto

Tomoki Itou

Akio Ashikaga

Kentaro Yamano

Atsushi Maekawa

When atmospheric pressure (Pa) which varies according to altitude is higher than a predetermined pressure threshold (Path) during idle operation in which catalyst warm-up request is issued, an intake pressure is controlled, through a throttle valve (), to an intake pressure at which an intake air amount required to promote the warm-up of a catalyst converter () is obtained. When the atmospheric pressure (Pa) is lower than the predetermined pressure threshold (Path), the intake pressure is controlled, through a throttle valve (), to an intake pressure (Pa&#x2212;Pb) at which a differential pressure (Pb) required by a brake booster () is obtained. Accordingly, negative pressure in the brake booster () can be secured while promoting the warm-up of the catalyst during the idle operation.

Method for controlling internal combustion engine and device for controlling same

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Kanagawa, Japan

Taichi Andou