Monitoring device for power supply system

Details Monitoring device for power supply system Monitoring device for power supply system

2006-02-23

2010-06-29

Assouad, Patrick J (Department: 2858)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

C320S116000, C320S136000, C324S427000

Reexamination Certificate

active

07746031

ABSTRACT:
A battery monitoring unit and sensors are supplied with a common operating supply voltage to operate. Detection values from sensors are sent to a control circuit by the battery monitoring unit. The control circuit monitors the operating supply voltage using a voltage sensor and additionally determines whether or not the detection values from the sensors before the relay connection falls within a normal range to more accurately detect a power supply reduction abnormality of the battery monitoring unit. Therefore, abnormalities can be detected accurately when the sensor and the battery monitoring unit provided for the secondary battery cannot operate normally due to a reduced operating supply voltage.

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Japanese Office Action issued on Mar. 9, 2010 for Japanese Application No. 077284/2005 (with translation).

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