Erroneous operation determination device
An erroneous operation determination device is configured to determine whether an occupant performs an erroneous operation of misstepping on a first operation pedal instead of a second operation pedal. The erroneous operation determination device includes an electronic control unit configured to acquire operation information relating to an operation content of the first operation pedal by the occupant and determine whether the occupant performs an erroneous operation based on the acquired operation information. The electronic control unit is configured to learn at least one of the operation content of the first operation pedal and an operation content of the second operation pedal and determine whether the occupant performs an erroneous operation based on a result of the learning.
1. An erroneous operation determination device configured to, in a vehicle including a first operation pedal and a second operation pedal that are operable respectively by an occupant for driving the vehicle, determine whether the occupant performs an erroneous operation of misstepping on the first operation pedal instead of the second operation pedal, the erroneous operation determination device comprising an electronic control unit configured to
acquire operation information relating to an operation content of the first operation pedal by the occupant and state information relating to a state of the occupant,
determine whether the occupant performs the erroneous operation based on the acquired operation information and the acquired state information,
learn the state of the occupant and at least one of the operation content of the first operation pedal and an operation content of the second operation pedal, and
determine whether the occupant performs the erroneous operation based on a result of learning the state of the occupant and the at least one of the operation content of the first operation pedal and the operation content of the second operation pedal, wherein
the state information includes information indicative of a gripping force applied by the occupant to a steering wheel and distinguishable between when the occupant operates the first operation pedal and when the occupant operates the second operation pedal,
the first operation pedal is an accelerator pedal, and
the second operation pedal is a brake pedal.
2. The erroneous operation determination device according to claim 1 , wherein the electronic control unit is configured to learn at least one of the operation content of the first operation pedal when the occupant actually operates the first operation pedal in at least a part of a period during which the vehicle is traveling and the operation content of the second operation pedal when the occupant actually operates the second operation pedal.
3. The erroneous operation determination device according to claim 1 , wherein the electronic control unit is configured to separately learn at least one of the operation content of the first operation pedal and the operation content of the second operation pedal under a situation in which the vehicle moves forward and at least one of the operation content of the first operation pedal and the operation content of the second operation pedal under a situation in which the vehicle moves backward.
4. The erroneous operation determination device according to claim 3 , wherein the electronic control unit is configured to
determine whether the occupant performs the erroneous operation under the situation in which the vehicle is moving forward based on the acquired operation information under the situation in which the vehicle moves forward and a result of learning of at least one of the operation content of the first operation pedal and the operation content of the second operation pedal under the situation in which the vehicle moves forward, and
determine whether the occupant performs the erroneous operation under the situation in which the vehicle is moving backward based on the acquired operation information under the situation in which the vehicle moves backward and a result of learning of at least one of the operation content of the first operation pedal and the operation content of the second operation pedal under the situation in which the vehicle moves backward.
5. The erroneous operation determination device according to claim 1 , wherein the electronic control unit is configured to adjust a criterion for determination in determining whether the occupant performs the erroneous operation based on a result of learning of at least one of the operation content of the first operation pedal and the operation content of the second operation pedal, and then, determine whether the occupant performs the erroneous operation.
6. The erroneous operation determination device according to claim 1 , wherein:
the electronic control unit is configured to determine whether the occupant performs the erroneous operation using a learning model having the operation information as input and a determination result relating to whether a pattern of an operation content indicated by the input operation information is a pattern of the operation content of the first operation pedal or a pattern of the operation content of the second operation pedal as output; and
the electronic control unit is configured to make the learning model learn at least one of the operation content of the first operation pedal and the operation content of the second operation pedal to learn at least one of the operation content of the first operation pedal and the operation content of the second operation pedal.
7. The erroneous operation determination device according to claim 6 , wherein the learning model is a model compliant with a neural network.
8. The erroneous operation determination device according to claim 1 , wherein learning of at least one of the operation content of the first operation pedal and the operation content of the second operation pedal includes learning of a difference between the operation content of the first operation pedal and the operation content of the second operation pedal.
9. The erroneous operation determination device according to claim 8 , wherein the difference between the operation content of the first operation pedal and the operation content of the second operation pedal is a difference in stroke amount between the first operation pedal and the second operation pedal.
10. The erroneous operation determination device according to claim 1 , wherein the electronic control unit is configured to
i) when a pattern of the operation content indicated by the acquired operation information corresponds to a pattern of the operation content of the first operation pedal deduced from a result of learning of at least one of the operation content of the first operation pedal and the operation content of the second operation pedal, determine that the occupant does not perform the erroneous operation, and
ii) when the pattern of the operation content indicated by the acquired operation information corresponds to a pattern of the operation content of the second operation pedal deduced from a result of learning of at least one of the operation content of the first operation pedal and the operation content of the second operation pedal, determine that the occupant performs the erroneous operation.
11. The erroneous operation determination device according to claim 1 , wherein the state information includes an output of a sensor that is mounted in the vehicle and detects the state of the occupant.
12. The erroneous operation determination device according to claim 1 , wherein the first operation pedal and the second operation pedal are constituted of a combination pedal that is used for both of operation as the first operation pedal and operation as the second operation pedal.