US 12,094,263 B2
Driving evaluation device, driving evaluation method, and driving evaluation program
Shuhei Manabe, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Feb. 3, 2022, as Appl. No. 17/591,895.
Claims priority of application No. 2021-054129 (JP), filed on Mar. 26, 2021.
Prior Publication US 2022/0309841 A1, Sep. 29, 2022
Int. Cl. G07C 5/00 (2006.01); G07C 5/02 (2006.01)
CPC G07C 5/02 (2013.01) [G07C 5/008 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A driving evaluation device comprising a central processing unit that:
acquires at least one of vehicle information related to a vehicle state and driving information related to a driving state of drivers;
determines whether a predetermined failure operation related to driving has been performed based on at least one of the vehicle information and the driving information acquired; and
calculates a failure operation probability that is a probability that the failure operation was performed, based on the failure operation determined, and uses a Z score of the failure operation probability calculated based on the failure operation probability to calculate an evaluation value related to the driving of the drivers, wherein
when calculating an nth evaluation value of a driver i who is a member of the drivers, assuming that an assumed failure operation probability in which the failure operation probability of the driver i is assumed is Fin, an average value of the assumed failure operation probabilities of all the drivers including the driver i is μn, a standard deviation of the assumed failure operation probabilities of all the drivers including the driver i is σn, the failure operation probability from a start of driving of a vehicle by the driver i to a current time is T, the central processing unit:
calculates Zin that is the Z score of the driver i using a first expression, and
calculates Scorei that is the evaluation value of the driver i using a second expression in which Zmin indicates a lower limit of the Z score, Zmax indicates an upper limit of the Z score, Smin indicates a lower limit of the evaluation value, and Smax indicates an upper limit of the evaluation value,
wherein the first expression is

OG Complex Work Unit Math
wherein the second expression is

OG Complex Work Unit Math
wherein the evaluation value of a good driver is less than that of a dangerous driver and relative to a near miss case over a predetermined period of time, the near miss case including a case where an amount of change in a steering angle or an acceleration is equal to or greater than a predetermined value, and
wherein the evaluation value is displayed for driver confirmation on a display unit by performing a predetermined operation on an input unit and transmitting advice information in response thereto to improve the evaluation value.