The invention discloses a
CAN bus light control method for a forklift, and relates to the technical field of forklift lighting control. According to the method, a historical evaluation
database is constructed, historical
overcurrent faults and overheating faults are used as reference data, an
overcurrent evaluation set and an overheating evaluation set of a set time window before the faults occur are analyzed and are used as the reference data, the current value and the temperature value of a
mosfet output module are collected in real time, the
overcurrent evaluation set and the overheating evaluation set are calculated, and the current value and the temperature value of the
mosfet output module are evaluated. A current trend index is compared with historical data, a similarity index ratio is calculated, a similar reference set is screened out, then the similarity degree is further determined by calculating the
Euclidean distance, when the
Euclidean distance is smaller than a set
reference distance value, a corresponding overcurrent or overheating early warning
signal is triggered, the most similar reference historical fault can be found, and the fault detection accuracy is improved. A clear direction and detailed reference information are provided for technicians to trace the root of the fault, maintenance and
troubleshooting of the forklift are facilitated, and the maintenance cost and the
downtime are reduced.