Nissan Motor Company Limited

Hirokimi Koyama

Hatsuo Nagaishi

Masashi Ono

Masayuki Tomita

Hiromichi Miwa

Toshio Takahata

Tomohiko Takahashi

Ritsuo Satou

Yuuichi Iriya

Yayoi Okumura

Tomoya Mori

Junso Ichiba

Shinichi Kobayashi

Keisuke Hamano

Toshiya Kouno

Ichirou Kishiki

An internal combustion engineat a standstill of a vehicle after cold starting can switch its combustion mode to a homogenous combustion mode or a stratified combustion mode. An operation range of the stratified combustion at the standstill of the vehicle after cold starting is expanded relative to an operation range of the homogenous combustion at the standstill of the vehicle after cold starting as an inclination of the vehicle decreases. With this technique, the operation range of the stratified combustion can be expanded while assuring an intake air negative pressure required for achieving the brake performance, so that HC reduction at the standstill of the vehicle after cold starting is obtained.

Control device for vehicle

A system for measuring intake air amount to be introduced into an engine cylinder employs a throttle angle sensor as a basic intake air flow amount indicative factor. Basic intake air flow amount is derived on the basis of a throttle valve angular position and an engine speed. The basic intake air flow amount is corrected with taking delay factor to introduce the intake air past the throttle valve into the engine cylinder, and a temperature dependent factor compensating variation of air density depending upon the temperature condition.

System for measuring amount of air introduced into combustion chamber of

Growing community of inventors

Kanagawa, Japan

Hirokimi Koyama