An electronic determination device for determining at least one characteristic parameter (Z 0, Tp, Cc, L, C, F res) of a connection set connected between a converter and an electric machine, the converter including first (V+) and second (V-) input terminals, at least two output terminals and, for each output terminal, a switching branch with first and second switching half-branches connected in series between the two input terminals (V+, V-) and connected to each other at an intermediate point, the first switching half-branch being connected to the first input terminal (V+) and the second switching half-branch being connected to the second input terminal (V-), the intermediate point being connected to said output terminal, each switching half-branch including at least one converter switch; the connection set including a filter connected to the output terminals and a cable connected between the filter and the electric machine; the cable including, for each output terminal, a respective electrical conductor; the filter including, for each output terminal, a respective electromagnetic coil connected to said output terminal and a respective capacitor connected to said coil in a connection point, in derivation with respect to said coil and to the respective conductor of the cable; the electronic determination device comprising: - for each output terminal, a device switch configured to be connected to the respective capacitor; - a generation module configured to generate a voltage pulse through the connection set, by controlling the converter switches and each device switch, the generation module being configured to control each device switch so that the voltage pulse, which is generated through a respective output terminal via the aforementioned control of the converter switches, then flows along a particular path of the connection set, said path depending on the characteristic parameter (Z 0, Tp, Cc, L, C, F res) to be calculated; - an acquisition module configured to acquire measurements of respective current(s) and voltage(s) through the filter, further to the generation of the respective voltage pulse; and - a calculation module configured to calculate at least one characteristic parameter (Z 0, Tp, Cc, L, C, F res) of the connection set according to the respective current(s) and voltage(s) measurements. the converter including first (V+) and second (V-) input terminals, at least two output terminals and, for each output terminal, a switching branch with first and second switching half-branches connected in series between the two input terminals (V+, V-) and connected to each other at an intermediate point, the first switching half-branch being connected to the first input terminal (V+) and the second switching half-branch being connected to the second input terminal (V-), the intermediate point being connected to said output terminal, each switching half-branch including at least one converter switch; the connection set including a filter connected to the output terminals and a cable connected between the filter and the electric machine; the cable including, for each output terminal, a respective electrical conductor; the filter including, for each output terminal, a respective electromagnetic coil connected to said output terminal and a respective capacitor connected to said coil in a connection point, in derivation with respect to said coil and to the respective conductor of the cable; the electronic determination device comprising: - for each output terminal, a device switch configured to be connected to the respective capacitor; - a generation module configured to generate a voltage pulse through the connection set, by controlling the converter switches and each device switch, the generation module being configured to control each device switch so that the voltage pulse, which is generated through a respective output terminal via the aforementioned control of the converter switches, then flows along a particular path of the connection set, said path depending on the characteristic parameter (Z 0, Tp, Cc, L, C, F res) to be calculated; - an acquisition module configured to acquire measurements of respective current(s) and voltage(s) through the filter, further to the generation of the respective voltage pulse; and - a calculation module configured to calculate at least one characteristic parameter (Z 0, Tp, Cc, L, C, F res) of the connection set according to the respective current(s) and voltage(s) measurements. - for each output terminal, a device switch configured to be connected to the respective capacitor; - a generation module configured to generate a voltage pulse through the connection set, by controlling the converter switches and each device switch, the generation module being configured to control each device switch so that the voltage pulse, which is generated through a respective output terminal via the aforementioned control of the converter switches, then flows along a particular path of the connection set, said path depending on the characteristic parameter (Z 0, Tp, Cc, L, C, F res) to be calculated; - an acquisition module configured to acquire measurements of respective current(s) and voltage(s) through the filter, further to the generation of the respective voltage pulse; and - a calculation module configured to calculate at least one characteristic parameter (Z 0, Tp, Cc, L, C, F res) of the connection set according to the respective current(s) and voltage(s) measurements.