A cell balance control unit is provided, including: a discharge circuit connected to each of a plurality of battery cells constituting a battery in parallel; a voltage detecting circuit that detects a voltage of each of the battery cells; and a control device that controls each of the switching elements of the discharge circuit so that the voltage of each of the battery cells is made uniform based on voltage detection results of each of the battery cells, wherein the control device controls the switching elements of the discharge circuits connected to the adjacent battery cells in each different duty ratio, and detects disconnection of wirings extracted from both ends of each battery cell based on a potential difference between the adjacent battery cells.
Cell balance control unit
2015-09-22
Patent
Elektronische Ressource
Englisch
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES |
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