Toyota Jidosha Kabushiki Kaisha

Youta Suzuki

Teruhide Hayashida

Hiroki Nakashima

Masatsugu Kudara

Hiroshi Okude

Meilan Jiang

A display system includes a display device configured to display a screen; and a plurality of ECUs connected to a communication network. The ECUs include a first ECU and a second ECU. The first ECU is configured to perform determination regarding whether operation information when the first ECU makes a screen he displayed is a processing target, in a case where the operation information is not a processing target of the first ECU, set a transmission destination of notification in processing after the determination to a second ECU and include the operation information in the notification, and for the operation information when the second ECU makes the screen he displayed, transmit the operation information to the second ECU before the determination is performed. The second ECU is configured to perform the determination and the processing after the determination on the operation information received from the first ECU.

Display system

A traffic signal cycle estimation deviceis provided, which includes a travel time acquisition unitacquiring a traffic signal section travel time, a frequency distribution calculation unitcalculating a frequency distribution of the traffic signal section travel times on the basis of the traffic signal section travel times, a travel time group determination unitdetermining a first travel time group in which the vehicle does not stop at the traffic signal and a second travel time group in which the vehicle stops at the traffic signal on the basis of the frequency distribution of the traffic signal section travel times, and a traffic signal cycle estimation unitestimating cycle information of the traffic signal on the basis of a difference between the first travel time group and the second travel time group.

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Miyoshi, Japan

Youta Suzuki