Toyota Jidosha Kabushiki Kaisha

Aisin Seiki Kabushiki Kaisha

Hiroaki Iida

Takashi Hiramaki

Masayuki Usami

Hideo Itano

Tamiko Nishina

Atsushi Nakabayashi

A secondary curve, the ends of which coincide with the inner corner and the outer corner of the eye, is determined successively, and the total of the edge values of the pixels overlapping the secondary curve is calculated as an evaluation value. Next, a characteristic curve is generated on the basis of data made up of the calculated evaluation value and the Y-coordinate of the intersection between the secondary curve and a straight line passing through the center of a line segment whose ends coincide with the inner corner and the outer corner of the eye. Then, the reference positions for the upper eyelid and the lower eyelid of the eye are set on the basis of the result of an attempt to detect a pixel group occurring because of the red-eye effect in a search area defined on the basis of peaks in the characteristic curve.

Eyelid detection device, eyelid detection method, and recording medium

A cruise control device executes a program including the steps of: when shift information transmitted from an ECT-ECU changes from fifth gear to fourth gear, and the time T () from a change in the shift information has elapsed, determining that down shifting to fourth gear has been conducted, effecting upshift inhibit control, and effecting throttle return control at elapse of the time T () from a change in the shift information transmitted from the ECT-ECU.

Control device for vehicle

In a constant speed drive (in an auto cruise), the procedure of the invention executes proportional control to set an accelerator opening Acc corresponding to an observed vehicle speed and a target vehicle speed. When the accelerator opening Acc is less than a preset opening Aincluded in a dead zone where a torque demand Tr* is kept equal to 0, the procedure corrects the accelerator opening Acc to have a corresponding torque demand Tr* included in a negative zone where the torque demand Tr* takes negative values and linearly increases. This arrangement heightens the linearity of the graph of the torque demand Tr* against the accelerator opening Acc in the constant speed drive, compared with the linearity in a standard drive.

Growing community of inventors

Hashima, Japan

Hiroaki Iida