System having a secondary current generating assembly for the secondary conversion into electricity of exhaust gas heat from a primary current generating assembly

A vehicle for handling freight containers having a system having a primary current generating assembly, comprising a primary thermal engine, and having a secondary current generating assembly, in the form of an electric turbo compound installation, for secondary conversion into electricity of exhaust gas heat of the primary current generating assembly, wherein the secondary current generating assembly comprises an exhaust gas turbine, disposed in an exhaust gas stream of the primary thermal engine, and the exhaust gas turbine drives a secondary electric generator, wherein, in the exhaust gas stream, an exhaust gas cooler followed by a compressor is disposed behind the exhaust gas turbine, the compressor is driven by an electric motor and the rotational speeds for the compressor and exhaust gas turbine are controlled by a process regulating system, wherein a secondary inverter is allocated to the secondary generator, a frequency converter is allocated to the electric motor of the compressor, and the secondary inverter and the frequency converter are communicatively connected via a field bus to an electronic central controller, wherein the electronic central controller permits control of the energy flows of the primary current generating assembly and of the secondary current generating assembly, and the primary current generating assembly and the secondary current generating assembly supply at least one travel drive and at least one lifting drive with energy, wherein the rotational speeds for the compressor and exhaust gas turbine are controlled by the process regulating system in such a way that ambient pressure prevails in the exhaust gas stream at the input of the exhaust gas turbine.