Method for thermally controlling a plurality of cabins (13 to 18) of a vehicle from a mixing chamber supplied with air from at least one air supply device (19, 20), at least the temperature of said air being controlled, each cabin being supplied with air: - from the mixing chamber, - by a supply conduit (63, 74, 85, 96, 107, 118) specific to this cabin, - independently of each other cabin, - at least one cabin (13, 14, 15, 17, 18) is supplied with air at a temperature adjusted by at least one heat exchanger, named individual exchanger (64, 75, 86, 108, 119), associated with said supply conduit (63, 74, 85, 96, 107, 118) specific to this cabin, - air from the mixing chamber passing through a first circuit of each individual exchanger (64, 75, 86, 108, 119) associated with said supply conduit (63, 74, 85, 96, 107, 118) specific to a cabin and independently supplying said cabin (13, 14, 15, 17, 18), this first circuit being interposed between said cabin (13, 14, 15, 17, 18) and the mixing chamber on said supply conduit (63, 74, 85, 96, 107, 118) specific to said cabin, - at least one second circuit of at least one individual exchanger (64, 75, 86, 108, 119) associated with a supply conduit specific to a cabin is supplied with a heat transfer fluid from at least one thermal regulation loop (31, 51) of the vehicle, characterised in that: - this heat transfer fluid being selected: ∘ from: ▪ at least one heat transfer fluid bled from a thermal regulation loop of the vehicle at a temperature greater than the temperature of the air from the mixing chamber, ▪ at least one heat transfer fluid bled from a thermal regulation loop of the vehicle at a temperature lower than the temperature of the air from the mixing chamber, ∘ such that each individual exchanger (64, 75, 86, 108, 119) associated with the supply conduit specific to said cabin individually adjusts the temperature of the air supplying said cabin based on a set temperature for said cabin. - from the mixing chamber, - by a supply conduit (63, 74, 85, 96, 107, 118) specific to this cabin, - independently of each other cabin, - at least one cabin (13, 14, 15, 17, 18) is supplied with air at a temperature adjusted by at least one heat exchanger, named individual exchanger (64, 75, 86, 108, 119), associated with said supply conduit (63, 74, 85, 96, 107, 118) specific to this cabin, - air from the mixing chamber passing through a first circuit of each individual exchanger (64, 75, 86, 108, 119) associated with said supply conduit (63, 74, 85, 96, 107, 118) specific to a cabin and independently supplying said cabin (13, 14, 15, 17, 18), this first circuit being interposed between said cabin (13, 14, 15, 17, 18) and the mixing chamber on said supply conduit (63, 74, 85, 96, 107, 118) specific to said cabin, - at least one second circuit of at least one individual exchanger (64, 75, 86, 108, 119) associated with a supply conduit specific to a cabin is supplied with a heat transfer fluid from at least one thermal regulation loop (31, 51) of the vehicle, characterised in that: - this heat transfer fluid being selected: ∘ from: ▪ at least one heat transfer fluid bled from a thermal regulation loop of the vehicle at a temperature greater than the temperature of the air from the mixing chamber, ▪ at least one heat transfer fluid bled from a thermal regulation loop of the vehicle at a temperature lower than the temperature of the air from the mixing chamber, ∘ such that each individual exchanger (64, 75, 86, 108, 119) associated with the supply conduit specific to said cabin individually adjusts the temperature of the air supplying said cabin based on a set temperature for said cabin. ∘ from: ▪ at least one heat transfer fluid bled from a thermal regulation loop of the vehicle at a temperature greater than the temperature of the air from the mixing chamber, ▪ at least one heat transfer fluid bled from a thermal regulation loop of the vehicle at a temperature lower than the temperature of the air from the mixing chamber, ▪ at least one heat transfer fluid bled from a thermal regulation loop of the vehicle at a temperature greater than the temperature of the air from the mixing chamber, ▪ at least one heat transfer fluid bled from a thermal regulation loop of the vehicle at a temperature lower than the temperature of the air from the mixing chamber, ∘ such that each individual exchanger (64, 75, 86, 108, 119) associated with the supply conduit specific to said cabin individually adjusts the temperature of the air supplying said cabin based on a set temperature for said cabin.