Toyota Jidosha Kabushiki Kaisha

Ippei Wakaya

Yoshiyuki Shogenji

Yuji Miyanoo

Hibiki Ueura

When a working angle of an intake valve is increased in accordance with a deficiency in a working fluid pressure of a VVT mechanism, an electronic control unit corrects an opening degree of a throttle valve so as to increase an intake air amount, and thereby restraining the intake air amount from decreasing in accordance with the increase in the working angle with a valve timing of the intake valve retarded, and hence suppressing a fall in an engine rotational speed.

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Toyota, Japan

Ippei Wakaya