ASSEMBLY COMPRISING A GENERATOR AND ELECTRIC MOTORS, FOR A VEHICLE COOLING OR AIR-CONDITIONING SYSTEM

An assembly including: a diesel heat engine driving a compressor; a generator having permanent magnets and a four-pole rotor, the generator shaft being rotated by the heat engine via a belt pulley system; one or more electric motors for the condenser(s) and/or evaporator(s) of a vehicle cooling or air-conditioning system, the generator directly powering the motor(s) and the supply voltage of the motor(s) being the generator output voltage; an auxiliary electric motor for driving the compressor when it is not or cannot be driven by the heat engine; and a device for toggling the power supply of the electric motor(s) of the condenser(s) and/or evaporator(s) of the cooling or air-conditioning system, by which it is possible to switch from power being supplied by the generator to an external electric network, said toggle device including one or more switches for controlling the power supply of the motor(s) from the electric network.