Toyota Jidosha Kabushiki Kaisha

Kabushiki Kaisha Toyota Jidoshokki

Gaku Kishimoto

Atsushi Kidokoro

Kingo Suyama

Takahiro Kiyofuji

Minoru Toyoshima

Seigaku Tanizawa

A controller calculates a period travel distance that is a travel distance of the vehicle from when the available travel distance is calculated to when the available travel distance is calculated next. The controller, when the remaining amount of urea aqueous solution inside a tank exceeds a predetermined amount, executes a first calculation process in which the available travel distance is calculated with reference to the remaining amount of the urea aqueous solution. The controller, after the remaining amount of the urea aqueous solution becomes smaller than or equal to a predetermined amount, executes a second calculation process in which the available travel distance is calculated by subtracting the period travel distance from the previously calculated available travel distance.

Exhaust emission control apparatus for on-board internal combustion engine, and method for exhaust emission control apparatus

An ECU (electronic control unit) determines whether a turbo charger is defective or not based on degree of deviation between a target boost pressure Pimtrg and an actual boost pressure Pim of the turbo charger. Further, ECU estimates exhaust gas pressure of an exhaust passage from the internal combustion engine to the turbo charger based on a state of engine operation, and determines whether or not the estimated exhaust gas pressure is relatively low. When it is determined that the exhaust gas pressure is relatively low, the manner of defect determination is changed such that the determination of defect is not readily made.

Defect determining device for turbo charger

Growing community of inventors

Nagoya, Japan

Gaku Kishimoto