Patent ID: 11938958
Assignee: NISSAN MOTOR CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 11:
12. A method for controlling a voice dialogue device comprising a controller configured to execute a dialogue with an occupant in a vehicle using at least one sensor equipped in the vehicle, the method comprising:
by the at least one sensor, detecting at least one of a traveling state of the vehicle, an external environmental state of the vehicle, and a state of the occupant;
by the controller, determining, on the basis of the detection result, a state of a load on the occupant; and
executing a dialogue with the occupant by executing a first dialogue program when the size of the load is larger than the predetermined standard, and executing a second dialogue program different from the first dialogue program when the size of the load is smaller than the predetermined standard,
wherein the first dialogue program is programmed to ask questions for which the expected occupant's answers include fewer words than with the second dialogue program,
wherein the first dialogue program uses discrete word recognition to acquire an answer to a question from the occupant, discrete word recognition recognizing one or more predetermined words in voice information of the occupant,
wherein the second dialogue program uses sentence recognition to acquire an answer to a question from the occupant, sentence recognition recognizing voice information of the occupant in a unit of a sentence.