US 12,403,925 B2
Vehicle system and vehicle
Kenji Kimura, Nisshin (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Dec. 29, 2021, as Appl. No. 17/564,759.
Application 17/564,759 is a continuation of application No. 16/987,668, filed on Aug. 7, 2020, granted, now 11,577,744.
Application 16/987,668 is a continuation of application No. 15/800,806, filed on Nov. 1, 2017, granted, now 10,800,429, issued on Oct. 13, 2020.
Claims priority of application No. 2016-225084 (JP), filed on Nov. 18, 2016.
Prior Publication US 2022/0118999 A1, Apr. 21, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B60W 50/14 (2020.01); B60Q 3/70 (2017.01); B60Q 5/00 (2006.01); B60W 40/08 (2012.01); B60W 50/16 (2020.01); B60Q 3/80 (2017.01)
CPC B60W 50/14 (2013.01) [B60Q 3/731 (2022.05); B60Q 5/005 (2013.01); B60W 40/08 (2013.01); B60W 50/16 (2013.01); B60K 2360/334 (2024.01); B60Q 3/80 (2017.02); B60Q 2800/10 (2022.05); B60W 2040/0827 (2013.01); B60W 2050/143 (2013.01); B60W 2050/146 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method to be performed by an electronic control unit of a vehicle, the method comprising:
presenting a light stimulus to a driver of the vehicle;
making a first determination as to whether the driver is facing forward;
upon determining, in the first determination, that the driver is not facing forward, performing a first warning;
after performing the first warning:
making a second determination as to whether the driver is facing forward;
upon determining, in the second determination, that the driver is facing forward, terminating the first warning;
upon determining, in the second determination, that the driver is not facing forward:
making a third determination as to whether the driver is holding a steering wheel of the vehicle;
upon determining, in the third determination, that the driver is not holding the steering wheel:
terminating the first warning; and
performing a second warning.