Electric battery charging installation and method
First Claim
1. A charging installation for an electric battery of an electric vehicle, comprising:
- a main power supply source configured to deliver a charging power Pc1;
a first circuit to convert a supply current or voltage delivered by the main power supply source into a charging current or voltage for the electric battery, the first circuit comprising a control circuit to control a switch supplying a current to a primary winding of a transformer, the control circuit operating in an isolated switching mode at a high frequency or at a low frequency;
at least one auxiliary power supply source configured to deliver a charging power Pc2;
at least one second circuit to convert a supply current or voltage delivered by the auxiliary power supply source into a charging current or voltage for the electric battery, said at least one second circuit being connected in parallel to the first circuit;
a management system controlling and activating said at least one auxiliary power supply source when a charging power Pc required to charge the battery is greater than the charging power Pc1 delivered by the main power supply source;
wherein the electric vehicle comprises an onboard computer controlling the electric battery to be charged; and
a communication system for a real-time transfer of information between the charging installation and the onboard computer, said information comprising at least one charging set point value supplied by the onboard computer.
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Accused Products
Abstract
An installation and a method for charging an electric battery for an electric vehicle. The electric vehicle comprises an on-board computer. The installation comprises a main power source delivering a charging power Pc1. The charging method comprises the step of determining the charging power Pc to be delivered to the electric battery in relation to a charging voltage and/or current set point demanded at an instant t by the onboard computer. The charging power is compared against the charging power Pc1 delivered by a main power source. If Pc>Pc1, at least one auxiliary power source delivering a charging power Pc2 is utilized in addition to the main power source such that the sum of the charging powers delivered by the power sources is equal to the charging power Pc.
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Citations
21 Claims
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1. A charging installation for an electric battery of an electric vehicle, comprising:
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a main power supply source configured to deliver a charging power Pc1; a first circuit to convert a supply current or voltage delivered by the main power supply source into a charging current or voltage for the electric battery, the first circuit comprising a control circuit to control a switch supplying a current to a primary winding of a transformer, the control circuit operating in an isolated switching mode at a high frequency or at a low frequency; at least one auxiliary power supply source configured to deliver a charging power Pc2; at least one second circuit to convert a supply current or voltage delivered by the auxiliary power supply source into a charging current or voltage for the electric battery, said at least one second circuit being connected in parallel to the first circuit; a management system controlling and activating said at least one auxiliary power supply source when a charging power Pc required to charge the battery is greater than the charging power Pc1 delivered by the main power supply source; wherein the electric vehicle comprises an onboard computer controlling the electric battery to be charged; and a communication system for a real-time transfer of information between the charging installation and the onboard computer, said information comprising at least one charging set point value supplied by the onboard computer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for charging an electric battery for an electric vehicle, comprising the steps of:
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providing a charging power Pc1 from a main power supply source; converting a supply current or voltage delivered by the main power supply source into a charging current or voltage for the electric battery by a first circuit, the first circuit comprising a control circuit; controlling a switch supplying a current to a primary winding of a transformer by the control circuit of the first circuit, the control circuit operating in an isolated switching mode at a high frequency or at a low frequency; providing a charging power Pc2 from at least one auxiliary power supply source such that a sum of the charging powers delivered by the power supply sources to the electric battery is equal to a charging power Pc; for each auxiliary power supply source, converting a supply current or voltage delivered by said each auxiliary power supply source into a charging current or voltage for the electric battery by a second circuit positioned between said each auxiliary power supply source and a connection node of different power supply sources; controlling the electric battery to be charged by an onboard computer of the electric vehicle; and transferring information in real-time between the charging installation and the onboard computer by a communication system, said information comprising at least one charging set point value supplied by the onboard computer. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for charging an electric battery for an electric vehicle comprising an onboard computer, comprising the steps of:
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providing a charging power Pc1 from a main power supply source; converting a supply current or voltage delivered by the main power supply source into a charging current or voltage for the electric battery by a first circuit, the first circuit comprising a control circuit; controlling a switch supplying a current to a primary winding of a transformer by the control circuit of the first circuit, the control circuit operating in an isolated switching mode at a high frequency or at a low frequency; determining a charging power Pc delivered to the electric battery of the electric vehicle, during a DC voltage charge of the electric battery, relative to a charging set point demanded at an instant t by the onboard computer; comparing the charging power Pc to the charging power Pc1 delivered by the main power supply source; delivering a charging power Pc2 from at least one auxiliary power supply source to supplement the main power supply source based on a determination that Pc>
Pc1, such that the sum of the charging powers delivered by the power supply sources is equal to the charging power Pc. - View Dependent Claims (18, 19, 20, 21)
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Specification