US 12,131,593 B2
Vehicle diagnosis system
Yoshitaka Shindo, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Jan. 18, 2022, as Appl. No. 17/577,485.
Claims priority of application No. 2021-006385 (JP), filed on Jan. 19, 2021.
Prior Publication US 2022/0230483 A1, Jul. 21, 2022
Int. Cl. G07C 5/08 (2006.01)
CPC G07C 5/0808 (2013.01) [G07C 5/0833 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A vehicle diagnosis system comprising:
a diagnosis device including a processor configured to diagnose an abnormality of a part based on detected sound data, the part separating an inside and an outside of a vehicle cabin of a vehicle;
a sound source that is located outside the vehicle cabin and is configured to emit a sound of which at least one of a sound pressure and a frequency is predetermined, the sound source including a first sound source and a second sound source, the first sound source being configured to emit a first alerting sound for notifying surroundings of a presence of the vehicle while the vehicle is traveling at a speed lower than a threshold, and the second sound source being configured to emit a second alerting sound that is larger than the first alerting sound; and
a microphone located inside the vehicle cabin, wherein
the processor is configured to
determine whether the vehicle is traveling,
acquire, in response to the determination that the vehicle is traveling, a first detected sound data related to the first alerting sound as the detected sound data while the vehicle is traveling the speed lower than the threshold,
acquire, in response to the determination that the vehicle is not traveling, a second detected sound data related to the second alerting sound emitted in a state where the vehicle stops inside a predetermined area as the detected sound data, and
determine whether the part has an abnormality by comparing the first and second detected sound data with predetermined reference sound data.