US 12,128,905 B2
Driver state estimation device, driver state estimation method, and learning method
Kimika Ikegami, Tokyo (JP); Takuji Morimoto, Tokyo (JP); Genta Yoshimura, Tokyo (JP); and Shan Gao, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Appl. No. 17/615,749
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Jun. 18, 2019, PCT No. PCT/JP2019/024093
§ 371(c)(1), (2) Date Dec. 1, 2021,
PCT Pub. No. WO2020/255252, PCT Pub. Date Dec. 24, 2020.
Prior Publication US 2022/0315011 A1, Oct. 6, 2022
Int. Cl. B60W 40/09 (2012.01); G07C 5/04 (2006.01)
CPC B60W 40/09 (2013.01) [G07C 5/04 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A driver state estimation device comprising:
processing circuitry to collect information indicating a driving operation of a vehicle by a driver and a state of the vehicle changed by the driving operation;
in response to a stop state of the vehicle lasting for a predetermined time or longer, to output, among the collected information, information collected in a collection period between an initiation of a driving operation leading to stop of the vehicle and a stop start point of the stop state of the vehicle, as driving operation information;
to acquire driver state information indicating a state of the driver from a learned learner on which machine learning has been performed in such a manner as to output the driver state information when the driving operation information is input, by inputting the driving operation information to the learner and performing arithmetic processing of the learner; and
to control a brake operation of the vehicle based on the driver state information.