US 12,263,847 B2
Driver abnormality determination apparatus, method and computer program
Koji Iwase, Aki-gun (JP); Makoto Yoshida, Aki-gun (JP); Junichiro Kuwahara, Aki-gun (JP); and Yohei Iwashita, Aki-gun (JP)
Assigned to MAZDA MOTOR CORPORATION, Hiroshima (JP)
Filed by Mazda Motor Corporation, Hiroshima (JP)
Filed on Mar. 11, 2021, as Appl. No. 17/198,271.
Claims priority of application No. 2020-071671 (JP), filed on Apr. 13, 2020.
Prior Publication US 2021/0316737 A1, Oct. 14, 2021
Int. Cl. B60W 40/09 (2012.01); A61B 5/00 (2006.01); A61B 5/11 (2006.01); A61B 5/16 (2006.01); A61B 5/18 (2006.01); B60W 50/00 (2006.01)
CPC B60W 40/09 (2013.01) [A61B 5/1124 (2013.01); A61B 5/163 (2017.08); A61B 5/18 (2013.01); A61B 5/4035 (2013.01); B60W 50/0097 (2013.01); B60W 2540/10 (2013.01); B60W 2540/18 (2013.01); B60W 2540/223 (2020.02); B60W 2540/225 (2020.02); B60W 2540/229 (2020.02)] 9 Claims
OG exemplary drawing
 
1. A driver abnormality determination apparatus for a vehicle, the driver abnormality determination apparatus comprising:
circuitry configured to detect a driving operation of a driver;
detect a driver state of the driver;
detect an execution level of an involuntary function of the driver based on the driver state;
detect an execution level of a driving function of the driver based on the driving operation of the driver; and
determine a driver abnormality based on the execution level of the involuntary function and the execution level of the driving function, wherein
on condition that a function level of one of the execution level of the involuntary function and the execution level of the driving function is equal to or lower than a specified determination criterion, the circuitry is configured to relax a determination criterion for the other function level, and
to detect the execution level of the driving function, the circuitry is configured to detect:
an execution level of a predictive function related to a predictive function of the driver; and
an execution level of a base function related to a base function that serves as basis of the driving operation by the driver, and
on condition that the execution level of the predictive function is equal to or lower than a specified determination criterion, relax the determination criterion for the execution level of the base function.