Apparatus for controlling charging of a storage battery for use on an electric vehicle
First Claim
1. An apparatus for controlling the charging of a storage battery on an electric vehicle while a load is connected to the storage battery, comprising:
- a charger for charging the storage battery;
first detecting means for detecting energization of the load on the storage battery while the charger and the load are connected to the storage battery and before the storage battery starts being charged by said charger;
second detecting means for detecting energization of the load on the storage battery after the storage battery has been charged by said charger and until the charger is deenergized; and
first energization control means for energizing said load with said charger and essentially stopping charging and discharging of the storage battery when at least one of either energization of said load is detected by said first detecting means or energization of said load is detected by said second detecting means.
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Accused Products
Abstract
An apparatus controls the charging of a storage battery of an electric vehicle to optimize charging while accommodating any electrical loads that may be imposed on the storage battery, such as an air-conditioning unit or an accessory. The load is energized by the battery charger before the storage battery starts being charged by the charger while the charger is being connected to the storage battery and also after the charging of the storage battery is finished and until the charger is de-energized. In such instances, therefore, the load is energized by the charger without allowing a charging current to flow to or a discharge current to flow from the storage battery. Even when the load on the storage battery is actuated before the electric vehicle is operated, the electric energy stored in the storage battery is prevented from being unduly consumed.
62 Citations
33 Claims
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1. An apparatus for controlling the charging of a storage battery on an electric vehicle while a load is connected to the storage battery, comprising:
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a charger for charging the storage battery; first detecting means for detecting energization of the load on the storage battery while the charger and the load are connected to the storage battery and before the storage battery starts being charged by said charger; second detecting means for detecting energization of the load on the storage battery after the storage battery has been charged by said charger and until the charger is deenergized; and first energization control means for energizing said load with said charger and essentially stopping charging and discharging of the storage battery when at least one of either energization of said load is detected by said first detecting means or energization of said load is detected by said second detecting means. - View Dependent Claims (2, 3, 4)
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5. An apparatus for controlling the charging of a storage battery on an electric vehicle while a load is connected to the storage battery, comprising:
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a charger for charging the storage battery; a temperature detector for detecting a temperature inside the storage battery; third detecting means for detecting whether or not the temperature detected inside the storage battery by said temperature detector is equal to or higher than a predetermined temperature while the storage battery is being charged by said charger; fourth detecting means for detecting energization of the load on the storage battery while the charger and the load are connected to the storage battery and during a period in which the temperature inside of the storage battery is detected as equal to or higher than said predetermined temperature by said third detecting means; and second energization control means for energizing said load with said charger connected to said storage battery and essentially stopping charging and discharging of the storage battery when energization of said load is detected by said fourth detecting means. - View Dependent Claims (6, 7, 8, 9, 10)
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11. An apparatus for controlling the charging of a storage battery on an electric vehicle while a load is connected to the storage battery, comprising:
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a charger for charging the storage battery; a hydrogen concentration detector for detecting the concentration of a hydrogen gas generated from the storage battery; fifth detecting means for detecting whether or not the concentration of the hydrogen gas detected by said hydrogen concentration detector is equal to or higher than a predetermined concentration; sixth detecting means for detecting energization of the load on the storage battery while the charger and the load are connected to the storage battery and during a period in which the concentration of the hydrogen gas generated from the storage battery is detected as equal to or higher than said predetermined concentration by said fifth detecting means; and third energization control means for energizing said load with said charger connected to said storage battery and essentially stopping charging and discharging of the storage battery when energization of said load is detected by said sixth detecting means. - View Dependent Claims (12, 13, 14, 15, 16)
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17. An apparatus for controlling a charger for charging a storage battery on an electric vehicle while a load is connected to the storage battery, comprising:
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detecting means for detecting energization of the load on the storage battery while said charger and the load both are connected to the storage battery during at least one of either before the storage battery starts being charged by aid charger or after the storage battery has been charged by said charger; and energization control means for energizing said load with said charger and substantially stopping charging and discharging of the storage battery when energization of said load is detected by said detecting means. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification