System for controlling a voltage converter
AssigneeValeo Equipements Electriques Moteur
InventorsMathieu Bertrand, Yann Lecocq, Hicham Lahbil
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Abstract
The invention relates to a system 1 for controlling a voltage converter comprising a plurality of high-side switches forming a high group and a plurality of low-side switches forming a low group, the control system 1 comprising: a module 10 for measuring a voltage V of the DC voltage source B, a module 11 for comparing the measured voltage V with a first safety threshold OV1, a control module 12 for controlling a first group of switches so as to close chosen from the high group or the low group, if the comparison module 11 indicates that the measured voltage V is higher than the first safety threshold OV1.
Claims10
A system for controlling a voltage converter, the voltage converter being configured to connect a rotary electric machine to a DC voltage source comprising an on-board network, the voltage converter comprising a plurality of switching arms connected in parallel, each arm comprising a high-side switch and a low-side switch connected to one another at a midpoint that is configured to be connected to said rotary electric machine, the high-side switches forming a high group and the low-side switches forming a low group, the control system comprising:
- a module for measuring the voltage of the DC voltage source;
- a module for comparing the measured voltage with a first safety threshold;
- a control module for generating a command to close a first group of switches chosen from the high group or the low group when the comparison module indicates that the measured voltage is higher than the first safety threshold.
The control system as claimed in claim 5, wherein the control module is further configured to generate a command to open the first group of switches when the measured voltage is higher than or equal to the second safety threshold.
Dependencies are inferred from the claim text.