DEVICE AND METHOD FOR CHARGING A BATTERY FROM A THREE-PHASE NETWORK, HAVING A DEGRADED CHARGING MODE
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Abstract
A device and method for charging a battery from a three-phase network, having a degraded charging mode, for example a battery of an electric traction automotive vehicle. The device includes a first filtering stage configured to be connected to the three-phase network, a voltage step-down stage connected to the filtering stage, a voltage step-up stage configured to be connected to the battery and coupled to the voltage step-down stage via an inductive component, a regulating unit configured to impose cyclic switching ratios on the voltage step-down stage and on the voltage step-up stage, and a device for comparing operating temperature of the regulating unit with a threshold value and controlling the charging based on two phases of the three-phase network when the operating temperature of the regulating unit exceeds the threshold value.
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Citations
20 Claims
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1-10. -10. (canceled)
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11. A device for charging a battery, or a battery for an electric-drive automotive vehicle, from a three-phase power supply network, comprising:
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a first filtering stage configured to be connected to the three-phase network; a voltage buck stage connected to the filtering stage; a voltage boost stage configured to be connected to the battery and coupled to the voltage buck stage via an inductive component; at least one regulating unit configured to impose chopping duty cycles on the voltage buck stage; and means for comparing an operating temperature of the regulating unit with a first threshold value and means for controlling the charging operation to take place via two phases only of the three-phase network when the operating temperature of the regulating unit exceeds the first threshold value. - View Dependent Claims (12, 13, 14, 15)
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16. A method for charging a battery, or a drive battery for an electric-drive automotive vehicle, from a three-phase power supply network, comprising:
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filtering the input voltage delivered by the network; transmitting electrical power from the network to the battery via a voltage buck stage and a voltage boost stage that are coupled via an inductive component; comparing an operating temperature of a regulating unit for regulating the buck stage with a first threshold value; and charging the battery from two phases only of the three-phase network when the temperature exceeds the first threshold value. - View Dependent Claims (17, 18, 19, 20)
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Specification