Toyota Jidosha Kabushiki Kaisha

Akito Uchida

Masatomo Yoshihara

Koji Aso

Satoshi Masuda

Hiroshi Enomoto

Koji Okamura

Yoshifumi Nakamura

Kouji Okamura

Yuuji Hatta

Yuji Hatta

A control device, for a vehicle, include a determination unit configured to determine whether or not a traveling mode of the vehicle equipped with an engine as a traveling power source is switched to a circuit mode, and a switching unit configured to switch a target idle speed to a higher speed when the determination unit makes an affirmative determination than when the determination unit makes a negative determination.

Control device for vehicle

An engine device is equipped with an engine, a supercharger having a turbine, a compressor and a waste gate valve, and a control device that controls the engine and the supercharger, and that performs an abnormality diagnosis of a relationship between an intake air amount of the engine and a supercharging pressure as a pressure downstream of the compressor in the intake pipe. The control device performs boost control for controlling the waste gate valve such that the supercharging pressure becomes higher when a predetermined condition is fulfilled than when the predetermined condition is not fulfilled. The control device further sets a threshold for use in the abnormality diagnosis, based on whether or not the boost control is performed.

Engine device

An engine controller calculates a pulsation correction value based on actuation states of an air bypass valve (ABV) and a wastegate valve (WGV) that change the shape of intake and exhaust flow passages of an exhaust turbocharger. The pulsation correction value is used to compensate for an output error of an airflow meter caused by intake pulsation. The engine controller also calculates a fuel injection amount of an injector, based on an output of the airflow meter that has been corrected based on the pulsation correction value.

Engine controller and engine control method

When a stop position of a piston resulting from the automatic stop is in a range that is on an advance side of a threshold in terms of crank angle, fuel injection is performed at beginning of the automatic restart-up in the cylinder that is in the intake stroke and an ignition is performed in a subsequent initial compression stroke in the same cylinder. When the stop position of the piston resulting is in a range that is on a retard side of the threshold in terms of crank angle, initial fuel injection is performed in the cylinder that next enters an intake stroke among the cylinders of the internal combustion engine after the beginning of automatic restart-up and initial ignition is performed in a subsequent compression stroke in the same cylinder. The threshold is determined in accordance with an amount of deviation of a crank angle.

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Toyota, Japan

Akito Uchida