BATTERY MONITORING APPARATUS
First Claim
1. A battery monitoring apparatus for monitoring a battery condition of an assembled battery formed of a plurality of battery cells connected in series, comprising:
- a monitoring unit that is powered by the assembled battery and monitors the battery condition of the assembled battery;
a control unit that acquires a monitoring result indicative of the battery condition of the assembled battery from the monitoring unit and controls the operation of the monitoring unit on the basis of the monitoring result; and
wherein the monitoring unit transitions from a normal mode, in which power supply from the assembled battery to the monitoring unit is maintained, to a dark-current mode, in which power supply from the assembled battery to the monitoring unit is partially interrupted, in response to a first mode-switching instruction signal from the control unit for instructing the monitoring unit to transition from the normal mode to the dark-current mode, and transitions from the dark-current mode to the normal mode in response to a second mode-switching instruction signal from the control unit for instructing the monitoring unit to transition from the dark-current mode to the normal mode, and upon reception of a mode confirmation signal from the control unit during the normal mode of the monitoring unit, the monitoring unit transmits a response signal to the mode confirmation signal to the control unit, andthe control unit transmits the first mode-switching instruction signal to the monitoring unit, thereafter transmits the mode confirmation signal to the monitoring unit, and upon reception of the response signal to the mode confirmation signal from the monitoring unit, determines that the dark-current mode of the monitoring unit is malfunctioning.
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Accused Products
Abstract
A battery monitoring apparatus for monitoring a battery condition of an assembled battery. In the apparatus, a monitoring unit is powered by the assembled battery and transitions from a normal mode, in which power supply from the assembled battery to the monitoring unit is maintained, to a dark-current mode, in which the power supply is partially interrupted, in response to a mode-switching instruction signal from a control unit. Upon reception of a mode confirmation signal from the control unit during the normal mode, the monitoring unit transmits a response signal to the control unit. The control unit transmits the mode-switching instruction signal to the monitoring unit, and thereafter transmits the mode confirmation signal to the monitoring unit. Upon reception of the response signal to the mode confirmation signal from the monitoring unit, the control unit determines that the dark-current mode of the monitoring unit is malfunctioning.
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Citations
10 Claims
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1. A battery monitoring apparatus for monitoring a battery condition of an assembled battery formed of a plurality of battery cells connected in series, comprising:
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a monitoring unit that is powered by the assembled battery and monitors the battery condition of the assembled battery; a control unit that acquires a monitoring result indicative of the battery condition of the assembled battery from the monitoring unit and controls the operation of the monitoring unit on the basis of the monitoring result; and wherein the monitoring unit transitions from a normal mode, in which power supply from the assembled battery to the monitoring unit is maintained, to a dark-current mode, in which power supply from the assembled battery to the monitoring unit is partially interrupted, in response to a first mode-switching instruction signal from the control unit for instructing the monitoring unit to transition from the normal mode to the dark-current mode, and transitions from the dark-current mode to the normal mode in response to a second mode-switching instruction signal from the control unit for instructing the monitoring unit to transition from the dark-current mode to the normal mode, and upon reception of a mode confirmation signal from the control unit during the normal mode of the monitoring unit, the monitoring unit transmits a response signal to the mode confirmation signal to the control unit, and the control unit transmits the first mode-switching instruction signal to the monitoring unit, thereafter transmits the mode confirmation signal to the monitoring unit, and upon reception of the response signal to the mode confirmation signal from the monitoring unit, determines that the dark-current mode of the monitoring unit is malfunctioning. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification