Toyota Jidosha Kabushiki Kaisha

Tomohiko Satomi

Masanao Idogawa

Koji Ichikawa

Tomoyuki Uchiyama

Tatsuro Shimada

Hiromitsu Seo

Takuya Takei

Masaya Murata

When the vehicle is stopped and removal of deposits is not required, and forced charging of a power storage device is not being performed, the controller controls the fuel supply device so that a supply fuel pressure is at the first fuel pressure. When the vehicle is stopped and the removal of deposits is required, and the forced charging of the power storage device is being performed, the controller controls the fuel supply device so that the supply fuel pressure is at a second fuel pressure higher than the first fuel pressure. When the vehicle is stopped and the removal of deposits is required, and the forced charging of the power storage device is not being performed, the controller controls the fuel supply device so that the supply fuel pressure is at a third fuel pressure higher than the first fuel pressure and lower than the second fuel pressure.

Hybrid electric vehicle

A hybrid electric vehicle includes an engine having an in-cylinder injection valve, a fuel supply device that supplies fuel to the in-cylinder injection valve, a motor that can generate an electric power through the use of a motive power output from the engine and can output a running motive power, and an electrical storage device that exchanges electric power with the motor. A deposit removal process where deposits adherent to the in-cylinder injection valve are removed by setting a pressure of fuel supplied to the in-cylinder injection valve to a predetermined pressure higher than a normal pressure and injecting fuel from the in-cylinder injection valve is performed during the performance of a forcible charging process for the electrical storage device, and the forcible charging process is continued until the pressure of fuel is returned to the normal pressure after the end of the deposit removal process.

A fuel injector for an internal combustion engine includes a fuel injection valve, a heater, and a controller. The fuel injection valve is configured to supply fuel to the internal combustion engine. The heater is configured to heat the fuel in the fuel injection valve. The controller is configured to: control the fuel injection valve to stop supplying the fuel to the internal combustion engine, control the heater to execute or stop heating the fuel in the fuel injection valve, and control the fuel injection valve to prohibit the stop of supplying the fuel during execution of the heating by the heater.

Fuel injector of internal combustion engine and fuel injection method thereof

An EFI-ECU determines an initial value of a correction value ekthwst for correcting an injection correction amount with reference to a non-heating initial value map if a heater is in operation, and determines the initial value of the correction value ekthwst for correcting the injection correction amount with reference to a heating initial value map if the heater is out of operation. It should be noted herein that the initial value of the correction value ekthwst is set lower under the same condition in the heating initial value map than in the non-heating initial value map.

Growing community of inventors

Nagoya, Japan

Tomohiko Satomi