US 12,410,739 B2
Vehicle monitoring device and vehicle monitoring method
Kouji Hirukawa, Tokyo (JP); and Tomoharu Hori, Tokyo (JP)
Assigned to KOMATSU LTD., Tokyo (JP)
Appl. No. 18/717,496
Filed by Komatsu Ltd., Tokyo (JP)
PCT Filed Nov. 15, 2022, PCT No. PCT/JP2022/042346
§ 371(c)(1), (2) Date Jun. 7, 2024,
PCT Pub. No. WO2023/106046, PCT Pub. Date Jun. 15, 2023.
Claims priority of application No. 2021-199970 (JP), filed on Dec. 9, 2021.
Prior Publication US 2025/0027435 A1, Jan. 23, 2025
Int. Cl. F01N 11/00 (2006.01); F01N 3/20 (2006.01)
CPC F01N 11/00 (2013.01) [F01N 3/2066 (2013.01); F01N 2900/1806 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A vehicle monitoring device comprising:
a processor configured to:
from a time an error that has occurred in an exhaust gas aftertreatment device is resolved, monitor recurrence of the error for a predetermined recurrence monitoring period;
limit output of an internal combustion engine when the error recurs during the recurrence monitoring period; and
perform control to enable end of monitoring the recurrence of the error when a vehicle is in a predetermined manufacturing process.