Mazda Motor Corporation

Yukio Masuda

Sadashichi Yoshioka

Kenji Katayama

Kenichi Morizane

Kazutomo Sasaki

Toshihiko Osumi

Takayuki Okano

Shouhei Kumano

Yuji Ohta

Hidetoshi Shintani

An auxiliary mechanism mounting structure for mounting an auxiliary mechanism on an engine has an auxiliary mechanism mounting portion whose bearing rigidity is high in the longitudinal direction of the engine and is low in the vertical direction of the engine so that the auxiliary mechanism is easy to vibrate in the vertical direction of the engine.

Auxiliary mechanism mounting structure for an engine

An automotive engine is provided with a fuel control system having a fuel injector for injecting a properly controlled quantity of fuel into cylinders of the automobile engine. The control system is adapted to cause the fuel injector to inject an increased quantity of fuel when an engine control value, relative to which the automotive engine changes its speed of rotation for a decision as to whether the automotive engine is in an acceleration state, is higher than a critical level. The control system also detects the transmission coupled to the automobile engine, and changes, when a temperature of the automotive engine is lower than a preselected temperature, the critical level according to the type of transmission detected.

Fuel control system for modifying fuel injection according to

A control system for an internal combustion engine comprises an engine speed sensor, a section for producing a feedback correction value in accordance with a difference between speed of the engine detected by the engine speed sensor and a target idling speed when the engine is in a specific idle operation, a section for producing a learning control correction value based on the feedback correction value and storing the produced learning control correction value in a memory to renew a stored learning control correction value, a section for the performing a feedback control for the speed of the engine with the feedback correction value and the learning control correction value combined with a fundamental control value to keep an actual idling speed of the engine at the target idling speed, an air-fuel ratio sensor, a section for performing a feedback control for an air-fuel ratio of a fuel mixture in accordance with an detection output of the air-fuel ratio sensor, a section for detecting malfunction of the air-fuel ratio sensor, and a section for prohibiting the production of a new learning control correction value when the malfunction of the air-fuel ratio sensor is detected.

Control systems for internal combustion engines

Growing community of inventors

Hiroshima, Japan

Yukio Masuda