DEVICE FOR REGULATION OF A MOTOR VEHICLE ALTERNATOR AND CORRESPONDING ALTERNATOR

• Main Authors: Chassard, Pierre, Ragaine, Pierre-François, Tisserand, Pierre
• Format: Patent
• Language: English
• Published: 22.10.2020
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The regulating device (5) according to the invention for an excitation alternator (9) comprises a voltage feedback loop (6) and a temperature feedback loop (15) comprising means for measuring/estimating temperature supplying a current temperature (T), a comparator (18) generating a temperature error (εT) between a maximum permissible temperature (Tmax) and the current temperature, means for inputting a current speed of rotation of the alternator, a control module (19) supplying a percentage of a maximum permissible excitation (rmax) as a function of the temperature error and a speed correction supplied by speed correction means according to a predetermined correction law as a function of the current rotation speed.