Method and device for switching driving modes to support subject vehicle to perform platoon driving without additional instructions from driver during driving

A basement server for switching driving modes of a subject vehicle to support the subject vehicle to perform a platoon driving by using platoon driving information on platoon driving groups located near the subject vehicle, without additional instructions from a driver during a driving, which interworks with the subject vehicle driving in a first mode corresponding to a circumstance of being not included in any platoon driving groups, comprising:

• at least one memory that stores instructions;
• and
• at least one processor configured to execute the instructions to perform processes of:
• (I) if a platoon driving request is acquired from the subject vehicle, acquiring first platoon driving information, corresponding to a first platoon driving group including one or more first platoon driving vehicles, to N-th platoon driving information, corresponding to an N-th platoon driving group including one or more N-th platoon driving vehicles, by referring to a real-time platoon driving information database (“DB”);
• (II) the basement server (i) calculating a first platoon driving suitability score, corresponding to the first platoon driving group, to an N-th platoon driving suitability score, corresponding to the N-th platoon driving group, by referring to one or more first platoon driving parameters included in the first platoon driving information to one or more N-th platoon driving parameters included in the N-th platoon driving information, and (ii) selecting a target platoon driving group to be including the subject vehicle, among the first platoon driving group to the N-th platoon driving group;
• (III) the basement server instructing the subject vehicle to drive in a second mode corresponding to a circumstance of performing the platoon driving in the target platoon driving group.