Method for controlling switches of a current rectifier connected to an on-board charger

A method for controlling switches of a current rectifier in a motor vehicle including an on-board charger that can be connected to a three-phase electricity distribution network, the method comprising:

• determining a neutral-point current intensity required at an output of the rectifier;
• determining coordinates of a current vector enabling the neutral-point current to be obtained in a Fresnel space comprising six sectors delimited by six remarkable vectors;
• determining a half-sector comprising the current vector from twelve half-sectors forming the Fresnel space;
• determining a weighted vector combination of two remarkable vectors delimiting the Fresnel sector enabling the current vector to be obtained;
• determining an opening/closing sequence of the switches of the current rectifier as a function of weighting coefficients of the weighted vector combination of the remarkable vectors;
• and
• determining an opening/closing sequence of the switches of the current rectifier to obtain a freewheeling vector for a remaining duration of the switching period minimizing voltage deviations between ground and the voltage rectifier when switching from one opening/closing sequence of the switches of the current rectifier to another.