Toyota Jidosha Kabushiki Kaisha

Akira Satou

Shinichi Mitani

Takashi Tsunooka

Shigeyuki Urano

Shigemasa Hirooka

Satoshi Yoshizaki

Yasuyuki Irisawa

In a control device for an internal combustion engine according to the present embodiment, the control device includes: cooling units arranged on a path where a coolant is circulated, and cooling an exhaust gas of an engine with the coolant flowing through the cooling units; an atmospheric pressure sensor detecting an atmosphere pressure; and ECUs deciding whether or not to perform an exhaust gas temperature control for suppressing a temperature of the exhaust gas based on whether or not a heat quantity is more than a decision value, and correcting the decision value to be lower as the atmosphere pressure is lower.

Control device for internal combustion engine

An engine includes a normal fuel tank, fuel gas tank, an in-tank injection valve and a fuel gas supply valve. During operation of the engine, in a state where the fuel gas supply valve is closed, a fuel is injected into the fuel gas tank through the in-tank injection valve to generate a fuel gas by vaporizing the fuel. The fuel gas is stored in the fuel gas tank and is maintained in the gas phase due to the natural decompression even after the engine is stopped. To start the engine, the fuel gas supply valve is opened to supply the fuel gas in the fuel gas tank to a surge tank. Thus, compared with the case where the fuel gas is generated at the start of the engine, the fuel gas can be quickly supplied into the cylinder, so that the ability to start the engine is improved.

Fuel supply system for internal combustion engine

A control device for an internal combustion engine according to the present embodiment, includes: cooling unitsL andR arranged on a path where a coolant is circulated, and cooling an exhaust gas of the internal combustion engine with the coolant flowing through the cooling unitsL andR; and ECUsL andR estimating a heat quantity of the exhaust gas, and deciding whether or not to prohibit an idle reduction control in response to the estimated heat quantity of the exhaust gas.

Growing community of inventors

Susono, Japan

Akira Satou