A vehicular electric power system includes an electric generator (10), first and second batteries (20, 30), electrical loads (42) connected to the first battery, a switch (50) that selectively connects and disconnects the second battery to and from the generator and the first battery, a first controller (70) that controls the switch, a regulator (10a) that regulates the output voltage of the generator to a regulation voltage (Vreg), and a second controller (80). During operation of the generator in a regenerative mode, the second controller variably sets the regulation voltage and thereby controls the output voltage of the generator so as to keep the difference between a target output voltage and the detected output voltage of the first battery not greater than a predetermined allowed voltage deviation and keep the difference between the regulation voltage and the target output voltage of the first battery not greater than a predetermined threshold.
Vehicular electric power system
2015-05-06
Patent
Electronic Resource
English
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |