Method for managing the operation of a lorry for the refrigerated transport of temperature-sensitive products, of the indirect injection type, where the lorry is provided with: - at least one chamber for storing products; - a reserve of a cryogenic or refrigerated fluid such as liquid nitrogen or liquid CO 2; - a fuel reserve constituting the fuel for the engine of the lorry; - a main heat exchanger system, wherein the cryogenic fluid circulates, exchanger system comprising at least one internal heat exchanger to said at least one chamber as well as an air circulation system, for example of ventilator type, capable of putting the internal air in contact with the chamber with the cold walls of the exchanger(s) of the main heat exchanger system; - at least one additional heat exchanger, inside said at least one chamber, additional exchanger connected to other components allowing the formation of a heat exchange loop, loop wherein a cooling fluid circulates; - an evaporator for liquefied combustible gases, evaporator capable of receiving fuel coming from said fuel reserve and capable of thermally exchanging with said loop, evaporator which is moreover situated outside of said chamber and outside of said loop; - and at least one temperature probe is arranged, capable of measuring the temperature inside the chamber, as well as means allowing to compare the value supplied by this probe to a temperature setpoint inside the chamber; said loop comprising a secondary heat exchanger capable of thermally exchanging with said evaporator, the secondary heat exchanger being connected by the loop to said additional exchanger, being characterised by the implementation of the following measures: - the lorry is provided with more than one cold storage unit of the eutectic plate type or of the type developed from a so-called "phase change" material, unit which is situated within said chamber, space inside said chamber being cooled by extraction of the heat of the space using said main exchanger, and/or said additional exchanger and/or said cold storage unit, the heat extracted using said additional exchanger being directed, thanks to the loop to said secondary heat exchanger, and therefore to the evaporator, to contribute to the evaporation of said fuel; and in that - when the engine of the lorry is in operation and when the chamber does not require any cold input, all or some of the cold generated during the vaporisation of the fuel is stored in said cold storage unit for a later use. - at least one chamber for storing products; - a reserve of a cryogenic or refrigerated fluid such as liquid nitrogen or liquid CO 2; - a fuel reserve constituting the fuel for the engine of the lorry; - a main heat exchanger system, wherein the cryogenic fluid circulates, exchanger system comprising at least one internal heat exchanger to said at least one chamber as well as an air circulation system, for example of ventilator type, capable of putting the internal air in contact with the chamber with the cold walls of the exchanger(s) of the main heat exchanger system; - at least one additional heat exchanger, inside said at least one chamber, additional exchanger connected to other components allowing the formation of a heat exchange loop, loop wherein a cooling fluid circulates; - an evaporator for liquefied combustible gases, evaporator capable of receiving fuel coming from said fuel reserve and capable of thermally exchanging with said loop, evaporator which is moreover situated outside of said chamber and outside of said loop; - and at least one temperature probe is arranged, capable of measuring the temperature inside the chamber, as well as means allowing to compare the value supplied by this probe to a temperature setpoint inside the chamber; - the lorry is provided with more than one cold storage unit of the eutectic plate type or of the type developed from a so-called "phase change" material, unit which is situated within said chamber, space inside said chamber being cooled by extraction of the heat of the space using said main exchanger, and/or said additional exchanger and/or said cold storage unit, the heat extracted using said additional exchanger being directed, thanks to the loop to said secondary heat exchanger, and therefore to the evaporator, to contribute to the evaporation of said fuel; and in that - when the engine of the lorry is in operation and when the chamber does not require any cold input, all or some of the cold generated during the vaporisation of the fuel is stored in said cold storage unit for a later use.