System and method for reprogramming ecu devices (electronic control units) in vehicles, via digital radio

A method for the reprogramming of Electronic Control Units devices in vehicles via digital radio, comprising the steps of:

• a) selecting a software file to be transmitted to one or more predefined vehicles, which are tuned to the specific frequency of digital radio transmission at that moment;
• b) encrypting the software file with audio files generating a first encrypted packet;
• c) encrypting data files with vehicle information files by adding an identification header, generating a second encrypted packet;
• d) mixing said first encrypted packet and said second encrypted packet via digital radio technology to be transmitted simultaneously from a radio broadcasting station in digital format;
• e) receiving said first and second encrypted packets by means of a receiver of digital radio frequency radio signals of the vehicles, which are sent to the Electronic Control Units device and stored in a non-volatile memory;
• f) demodulating the digital radio signal and separating the first encrypted packet from the second encrypted packet;
• g) decrypting said first encrypted packet to separate the audio files and software files and decrypting said second encrypted packet to separate the data files and the vehicle information files;
• h) retransmitting the software and data file within the bus of the receiving Electronic Control Units device through the internal network of the vehicle, so that all Electronic Control Units devices receive the message simultaneously, but the Electronic Control Units device to be reprogrammed is the only one that responds to the transmitted message;
• i) auto-reprogramming the Electronic Control Units device with the software file after authenticating the information.