The invention provides a projection vehicle lamp electronic
system based on CAN XL, and belongs to the technical field of vehicle lamp control. The
system comprises a vehicle body end
domain controller, a vehicle lamp controller and a micro
LED lamp panel. The vehicle body end
domain controller is used for generating a vehicle lamp
control signal and vehicle lamp original display data, and packaging the vehicle lamp
control signal and the vehicle lamp original display data in corresponding CAN XL data frames; the vehicle lamp controller is used for identifying and analyzing a vehicle lamp
control signal and vehicle lamp original display data in the CAN XL data frame according to the type of the
service data unit, the rate variable data frame flag bit and the extended length frame flag bit, and sending the analyzed vehicle lamp control
signal and vehicle lamp original display data to the micro
LED lamp panel; and the micro
LED lamp panel is used for carrying out light function control according to the analyzed vehicle lamp control
signal and carrying out
image display according to the analyzed vehicle lamp original display data. According to the invention, the bandwidth waste in
data transmission is avoided, and the design complexity and cost of the
system are reduced.