BATTERY CONTROLLER

摘要

A battery controller that controls a battery for supplying power to a load apparatus, includes a current detection unit that detects a discharge current and a charge current of the battery, a malfunction detection unit that detects malfunction of a voltage detector for detecting a voltage of the battery, and a contactor control unit that is provided on a power supply line through which the discharge current and the charge current flow to open/close a contactor. The contactor control unit integrates the charge and discharge current when the malfunction of the voltage detector is detected, calculates an actual charge current amount obtained by subtracting an integrated value of the discharge current from an integrated value of the charge current, and prohibits charging/discharging of the battery by controlling the contactor when the actual charge current amount is equal to or more than a predetermined value.

主权项

1. A battery controller that controls a battery for supplying driving power to a load apparatus, comprising:
a current detection unit that detects a discharge current to be discharged from the battery and a charge current to be charged to the battery; a malfunction detection unit that detects malfunction of a voltage detector for detecting a voltage of the battery; and a contactor control unit that controls opening/closing of a contactor provided on a power supply line through which the discharge current and the charge current flow, the power supply line connecting the battery and the load apparatus, wherein the contactor control unit integrates the charge current and the discharge current detected by the current detection unit when the malfunction of the voltage detector is detected by the malfunction detection unit, calculates an actual charge current amount which is obtained by subtracting an integrated value of the discharge current from an integrated value of the charge current, and prohibits charging/discharging to and from the battery by controlling the contactor to be opened when the actual charge current amount is equal to or more than a predetermined value.