Condition managing system of storage battery for a movable body
First Claim
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1. A condition managing system for a storage battery, comprising:
- a battery pack which is formed by combining a number of storage batteries, said battery pack being used as a drive power source for a movable body;
a ventilation part for supplying cool air toward said battery pack;
a detection unit which is disposed in the vicinity of said battery pack to detect condition information about a voltage, a temperature and a pressure of a storage battery and an ambient temperature, said detection unit having an analog-digital conversion function of converting an obtained detection value from an analog value into a digital value and a signal sending function of successively sending said digital value in a serial method;
a movable body signal control part for controlling a discharging current of a battery, a charging current of the battery, a regenerative current to the battery which is generated during a braking operation of the movable body, and various types of information regarding the movable body;
a battery condition judging unit including a computation part for executing computations based on information from said detection unit and the movable body signal control part, a charging control signal part for supplying a charging control signal to a battery charger whose input source is an alternating current power source, a remaining capacity judging signal part for supplying a capacity judging signal to a display part, a lifetime judging signal part for supplying a lifetime judging signal to the display part, and a movable body control signal part for supplying a movable body control signal to said movable body signal control part;
the battery charger for charging said battery pack, under the control of the charging control signal from said battery condition judging unit; and
the display part for displaying a remaining capacity of the battery and a result of lifetime judgment, under the control of the capacity judging signal and the lifetime judging signal from the battery condition judging unit.
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Abstract
A condition managing system for a storage battery which is used as a drive power source for a movable body such as an electric car and which is formed by a number of sealed nickel/hydrogen storage batteries, comprises a battery pack 1, a detection unit 2 for detecting the condition of a battery pack, a battery condition judging unit 3, a movable body signal control part 4, a battery charger 5 for charging up the battery pack 1 under the control of a signal which is supplied from the battery condition judging unit 3, and a display part 6 for displaying the condition of the battery.
47 Citations
14 Claims
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1. A condition managing system for a storage battery, comprising:
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a battery pack which is formed by combining a number of storage batteries, said battery pack being used as a drive power source for a movable body; a ventilation part for supplying cool air toward said battery pack; a detection unit which is disposed in the vicinity of said battery pack to detect condition information about a voltage, a temperature and a pressure of a storage battery and an ambient temperature, said detection unit having an analog-digital conversion function of converting an obtained detection value from an analog value into a digital value and a signal sending function of successively sending said digital value in a serial method; a movable body signal control part for controlling a discharging current of a battery, a charging current of the battery, a regenerative current to the battery which is generated during a braking operation of the movable body, and various types of information regarding the movable body; a battery condition judging unit including a computation part for executing computations based on information from said detection unit and the movable body signal control part, a charging control signal part for supplying a charging control signal to a battery charger whose input source is an alternating current power source, a remaining capacity judging signal part for supplying a capacity judging signal to a display part, a lifetime judging signal part for supplying a lifetime judging signal to the display part, and a movable body control signal part for supplying a movable body control signal to said movable body signal control part; the battery charger for charging said battery pack, under the control of the charging control signal from said battery condition judging unit; and the display part for displaying a remaining capacity of the battery and a result of lifetime judgment, under the control of the capacity judging signal and the lifetime judging signal from the battery condition judging unit. - View Dependent Claims (2, 3, 4, 5, 6, 11, 12, 13, 14)
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7. A method of charging up a storage battery for a system which comprises:
- a battery pack which is formed by combining a number of storage batteries, said battery pack being used as a drive power source for a movable body;
a ventilation part for supplying cool air toward the battery pack;
a detection unit which is disposed in the vicinity of said battery pack to detect condition information about a voltage, a temperature and a pressure of a storage battery and an ambient temperature, said detection unit having an analog-digital conversion function of converting an obtained detection value from an analog value into a digital value and a signal sending function of successively sending said digital value in a serial method;
a movable body signal control part for controlling a discharging current of a battery, a charging current of the battery, a regenerative current to the battery which is generated during a braking operation of the movable body, and various types of information regarding the movable body;
a battery condition judging unit including a computation part for executing computations based on information from said detection unit and the movable body signal control part, a charging control signal part for supplying a charging control signal to a battery charger whose input source is an alternating current power source, a remaining capacity judging signal part for supplying a capacity judging signal to a display part, a lifetime judging signal part for supplying a lifetime judging signal to the display part, and a movable body control signal part for supplying a movable body control signal to the movable body signal control part;
the battery charger for charging said battery pack, under the control of the charging control signal from said battery condition judging unit; and
the display part for displaying a remaining capacity of the battery and a result of lifetime judgment, under the control of the capacity judging signal and the lifetime judging signal from the battery condition judging unit, the method being characterized in that;charging of the battery pack which is performed by the battery charger which is controlled by the charging control signal from said battery condition judging unit consists of two parts, a first charging period and a second charging period, and charging is performed using charging power until a result of a first remaining capacity judgment reaches about 90% to 100% of an initial capacity during the first charging period, the second charging period is thereafter started during which charging is continued using a very small charging current until a result of a second remaining capacity judgment reaches about 100% to 110% of the initial capacity, and charging is then stopped. - View Dependent Claims (8)
- a battery pack which is formed by combining a number of storage batteries, said battery pack being used as a drive power source for a movable body;
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9. A system for judging a remaining capacity of a storage battery for use within a system which comprises:
- a battery pack which is formed by combining a number of storage batteries, the battery pack being used as a drive power source for a movable body;
a ventilation part for supplying cool air toward the battery pack;
a detection unit which is disposed in the vicinity of said battery pack to detect condition information regarding a battery such as a voltage, a temperature and a pressure of a storage battery and an ambient temperature, the detection unit having an analog-digital conversion function of converting an obtained detection value from an analog value into a digital value and a signal sending function of successively sending said digital value in a serial method;
a movable body signal control part for controlling a discharging current of a battery, a charging current of the battery, a regenerative current to the battery which is generated during a braking operation of the movable body, and various types of information regarding the movable body;
a battery condition judging unit including a computation part for executing computations based on information from said detection unit and the movable body signal control part, a charging control signal part for supplying a charging control signal to a battery charger whose input source is an alternating current power source, a remaining capacity judging signal part for supplying a capacity judging signal to a display part, a lifetime judging signal part for supplying a lifetime judging signal to the display part, and a movable body control signal part for supplying a movable body control signal to the movable body signal control part;
the battery charger for charging said battery pack, under the control of the charging control signal from said battery condition judging unit; and
the display part for displaying a remaining capacity of the battery and a result of lifetime judgment, under the control of the capacity judging signal and the lifetime judging signal from the battery condition judging unit, the system for judging a remaining capacity of a storage battery being characterized in that;said battery condition judging unit judges a remaining capacity by combining a result of a first remaining capacity judgment which is based on a discharged electricity quantity and a result of a second remaining capacity judgment which is based on a discharging voltage, and a remaining capacity which is yielded by the first remaining capacity judgment is adopted while the remaining capacity remains from around 100% to around 20% of an initial capacity but a remaining capacity which is yielded by a second remaining capacity judgment is adopted when the remaining capacity according to the first remaining capacity judgment varies from around 20% to around 0% after dropped to around 20% of the initial capacity.
- a battery pack which is formed by combining a number of storage batteries, the battery pack being used as a drive power source for a movable body;
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10. A system for judging a lifetime of a storage battery for a system which comprises:
- a battery pack which is formed by combining a number of storage batteries, the battery pack being used as a drive power source for a movable body;
a ventilation part for supplying cool air toward the battery pack;
a detection unit which is disposed in the vicinity of said battery pack to detect condition information regarding a battery such as a voltage, a temperature and a pressure of a storage battery and an ambient temperature, the detection unit having an analog-digital conversion function of converting an obtained detection value from an analog value into a digital value and a signal sending function of successively sending said digital value in a serial method;
a movable body signal control part for controlling a discharging current of a battery, a charging current of the battery, a regenerative current to the battery which is generated during a braking operation of the movable body, and various types of information regarding the movable body;
a battery condition judging unit including a computation part for executing computations based on information from said detection unit and the movable body signal control part, a charging control signal part for supplying a charging control signal to a battery charger whose input source is an alternating current power source, a remaining capacity judging signal part for supplying a capacity judging signal to a display part, a lifetime judging signal part for supplying a lifetime judging signal to the display part, and a movable body control signal part for supplying a movable body control signal to the movable body signal control part;
the battery charger for charging said battery pack, under the control of the charging control signal from said battery condition judging unit; and
the display part for displaying a remaining capacity of the battery and a result of lifetime judgment, under the control of the capacity judging signal and the lifetime judging signal from the battery condition judging unit, the system for judging a lifetime of a storage battery being characterized in that;during a judgment of a lifetime performed by said battery condition judging unit, an average value of total data is calculated based on battery condition information which is obtained regarding each module battery, said average value is compared with each module battery, and if a difference between the two is equal to or larger than a predetermined value, it is judged that the battery is defective because of a deteriorated capacity or shorting or that the lifetime of the battery is reached.
- a battery pack which is formed by combining a number of storage batteries, the battery pack being used as a drive power source for a movable body;
Specification