To suppress, when limiting power supply current by an upper limit current value to mitigate power supply voltage drop, the upper limit current value from being set excessively small or excessively large. A power supply current control device including: a voltage detecting unit (35) configured to detect a power supply voltage applied from a power supply circuit; a current detecting unit (36) configured to detect a power supply current supplied from the power supply circuit; a current limit value calculation unit (41) configured to calculate a current limit value on a basis of a difference between the power supply voltage detected by the voltage detecting unit and a predetermined set voltage, the power supply current detected by the current detecting unit, and a resistance model representing a resistance component of the power supply circuit; a power supply current limit unit (42) configured to limit a magnitude of the power supply current on a basis of the current limit value; a change rate limit value calculation unit (43) configured to calculate a change rate limit value on a basis of the difference and a change speed of the power supply voltage; and a power supply current change rate limit unit (44) configured to limit a change rate of the power supply current on a basis of the change rate limit value.
POWER SUPPLY CURRENT CONTROL DEVICE, ELECTRIC ACTUATOR PRODUCT, AND ELECTRIC POWER STEERING DEVICE
STROMSTEUERUNGSVORRICHTUNG EINER STROMVERSORGUNG, ELEKTRISCHES AKTUATORPRODUKT UND ELEKTRISCHE SERVOLENKVORRICHTUNG
DISPOSITIF DE COMMANDE DE COURANT D'ALIMENTATION ÉLECTRIQUE, PRODUIT D'ACTIONNEUR ÉLECTRIQUE, ET DISPOSITIF DE DIRECTION À ALIMENTATION ÉLECTRIQUE
2022-12-28
Patent
Electronic Resource
English
IPC: | H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B62D MOTOR VEHICLES , Motorfahrzeuge / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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