US 12,434,727 B2
Notification device and notification method
Kenta Yamada, Tokyo-to (JP); Takuhiro Omi, Anjo (JP); Hiroshi Morimoto, Tokyo-to (JP); and Udara Eshan Manawadu, Tokyo-to (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP); and AISIN CORPORATION, Kariya (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP); and AISIN CORPORATION, Aichi-ken (JP)
Filed on Jul. 12, 2023, as Appl. No. 18/221,243.
Claims priority of application No. 2022-135291 (JP), filed on Aug. 26, 2022.
Prior Publication US 2024/0067201 A1, Feb. 29, 2024
Int. Cl. B60W 50/14 (2020.01); B60W 60/00 (2020.01)
CPC B60W 50/14 (2013.01) [B60W 60/0053 (2020.02)] 9 Claims
OG exemplary drawing
 
1. A notification device comprising a processor configured to:
detect a predetermined action of a driver of a vehicle in which travel is controlled by an autonomous driving system from a driver image including a face region representing a face of the driver and output a confidence rate indicating a certainty in the detection,
specify a message for inhibiting a control ending action which possibly follows the detected action and corresponds to an ending condition of control by the autonomous driving system, and
notify the driver of the specified message through an output device when an effectiveness level is higher than a predetermined notification threshold, the effectiveness level calculated by multiplying the confidence rate by a first probability of the control ending action being inhibited when notifying the driver of the specified message or by a second probability of the control ending action being performed when not notifying the driver of the specified message, the first probability and the second probability being calculated, the second probability being calculated by dividing a number of times the control ending action was detected after the specified message was not notified to the driver by a number of times the specified message was notified.