Patent application number | Description | Published |
20130090871 | CAPACITY ESTIMATING APPARATUS FOR SECONDARY BATTERY - A capacity estimating apparatus for a secondary battery includes a current-detecting section configured to detect a value of current flowing in the secondary battery; a voltage-detecting section configured to detect a voltage value of the secondary battery; a first estimating section configured to calculate a first estimate value of a remaining capacity of the secondary battery on the basis of an accumulated value of the current values detected by the current-detecting section; and a second estimating section configured to calculate a second estimate value of the remaining capacity of the secondary battery on the basis of the voltage value detected by the voltage-detecting section. The first estimating section is configured to calculate a difference between the first estimate value and the second estimate value, and to correct the first estimate value by correcting the accumulated value so as to gradually reduce the difference. | 04-11-2013 |
20130147424 | BATTERY CHARGING CONTROL DEVICE - When warming-up of a battery is in progress (S | 06-13-2013 |
20130302658 | BATTERY TEMPERATURE CONTROL DEVICE - At a timing of time t | 11-14-2013 |
20130342015 | BATTERY CHARGING CONTROL DEVICE - When warming-up of a battery is in progress (S | 12-26-2013 |
20150054449 | CHARGING DEVICE FOR STORAGE BATTERY, AND CHARGING METHOD FOR STORAGE BATTERY - A charging device for a storage battery includes: a charging power source for supplying electric power to a storage battery; a charging electric power detecting device adapted to detect electric power charged to the storage battery; a full charge determining device adapted to make a full charge determination based on a detected value of the charging electric power detecting device; and a charging controlling device adapted to conduct charging control by charging the storage battery until the full charge determination is made, stopping charging when the full charge determination is made, restarting charging after a prescribed time period elapses from the stop of charging, and continuing charging until the full charge determination is made again. The charging device further includes a temperature detecting device adapted to detect a temperature of the storage battery; and a stop time setting device adapted to set a stop time based on at least the temperature of the storage battery at the full charge determination. The stop time setting device sets the stop time to be longer as the detected temperature of the temperature detecting device becomes lower. | 02-26-2015 |
20150079433 | BATTERY-TEMPERATURE ADJUSTMENT APPARATUS - A battery temperature adjustment apparatus including a battery, a temperature adjustment section configured to operate by power supplied from an external power source or the battery and adjust a temperature of the battery by heating or cooling, a detection section configured to detect a temperature of the battery, and a control section configured to change an operating condition or an operating state of the temperature adjustment section according to whether or not the external power source to supply power to the battery is electrically connected, and in a case where the external power source is not electrically connected, restrict the operation of the temperature adjustment section so as to reduce power consumed in the battery as compared to a case where the external power source is electrically connected. | 03-19-2015 |
20150134282 | BATTERY RESIDUAL CAPACITANCE CALCULATION DEVICE AND BATTERY RESIDUAL CAPACITANCE CALCULATION METHOD - A residual capacity calculation apparatus for a battery includes: a current detection device to detect a charge/discharge current of the battery; a voltage detection device to detect a terminal voltage of the battery; a first residual capacity calculation unit to calculate a first residual capacity based on an integrated value of the charge/discharge current of the battery; a second residual capacity calculation unit to calculate a second residual capacity based on an open circuit voltage of the battery; a blend rate setting unit to determine a blend rate of the second residual capacity based on a deviation between the first residual capacity and the second residual capacity; and a third residual capacity calculation unit to calculate a post-combination residual capacity by subjecting the first residual capacity and the second residual capacity to weighted combination with use of the blend rate, in which the blend rate setting unit is configured to increase the blend rate as the deviation between the first residual capacity and the second residual capacity increases. | 05-14-2015 |
20150212161 | CHARGE STATE CALCULATION DEVICE AND CHARGE STATE CALCULATION METHOD - A charge state calculation device includes a detection means for detecting the voltage and/or the current of a battery, a charge state calculation means for calculating the charge state of the battery, a full charge detection means for detecting the full charge of the battery, a correction value calculation means for calculating, when the full charge of the battery is detected, a correction value for correcting the charge state to the charge state of 100%, a correction means for correcting a charge state by the correction value, and a display means for displaying the charge state thus corrected by the correction means. The correction value calculation means updates the correction value only when the full charge of the battery is detected, and maintains the updated correction value until next time the full charge of the battery will be detected. | 07-30-2015 |