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US 12,576,732 B2Granted
Power transmission between electric vehicle battery and alternating-current power system
AssigneeRivian IP Holdings, LLC
InventorsMing Li, Lixiang Wei, Steven Schulz, Puneeth Kumar Srikanta Murthy
Life of this patent
Estimating the term…
Abstract
Aspects of this technical solution can a first direct-current (DC) circuit to couple with a DC battery of an electric vehicle, a capacitor of the first DC circuit configured to charge to a capacitance that satisfies a threshold of activation of a second DC circuit, and the first DC circuit to transmit, in response to a determination that the capacitor satisfies the threshold of activation of the second DC circuit, DC power between the battery of the electric vehicle and the second DC circuit.
Claims13
A system, comprising:
- a first direct-current circuit to couple with a direct-current battery of an electric vehicle;
- a first capacitor of the first direct-current circuit configured to charge to a capacitance that satisfies a threshold of activation of a second direct-current circuit;
- the first direct-current circuit to transmit, in response to a determination that the first capacitor satisfies the threshold of activation of the second direct-current circuit, direct-current power between the direct-current battery of the electric vehicle and the second direct-current circuit;
- and
- a relay to couple an alternating-current circuit with the second direct-current circuit and to charge a second capacitor to a predetermined charge satisfying a threshold of activation of the alternating-current circuit, the second direct-current circuit including the second capacitor.
2 more elements
A method, comprising:
- coupling a direct-current battery of an electric vehicle with a first direct-current circuit including a first capacitor;
- charging, in response to coupling the direct-current battery with the first direct-current circuit, the first capacitor to a capacitance satisfying a threshold of activation of a second direct-current circuit;
- transmitting, by the first direct-current circuit in response to a determination that the first capacitor satisfies the threshold of activation of the second direct-current circuit, direct-current power between the direct-current battery of the electric vehicle and the second direct-current circuit;
- and
- charging, from a charger assistant circuit having a voltage less than a maximum voltage of an alternating-current circuit, a second capacitor to a capacitance satisfying a threshold of activation of the alternating-current circuit, the second direct-current circuit including the second capacitor.
2 more elements
A system, comprising:
- a first direct-current circuit to couple with a direct-current battery of an electric vehicle;
- a first capacitor of the first direct-current circuit configured to charge to a capacitance satisfying a first threshold of activation of a second direct-current circuit;
- the first direct-current circuit to transmit, in response to a determination that the first capacitor satisfies the first threshold of activation, direct-current power from or to the direct-current battery of the electric vehicle;
- the second direct-current circuit coupled with the first direct-current circuit and configured to transmit, in response to receiving the direct-current power, alternating-current power corresponding to the direct-current power from or to an alternating-current circuit;
- a second capacitor of the second direct-current circuit configured to charge to a capacitance satisfying a second threshold of activation of the alternating-current circuit,
- the second direct-current circuit to transmit, to the alternating-current circuit in response to a determination that the second capacitor satisfies the second threshold of activation of the alternating-current circuit, the alternating-current power;
- and
- a relay to couple the alternating-current circuit with the second direct-current circuit, the relay configured to charge the second capacitor to the second threshold of activation.
5 more elements
A system, comprising:
- a first direct-current circuit to couple with a direct-current battery of an electric vehicle;
- a first capacitor of the first direct-current circuit configured to charge to a capacitance that satisfies a threshold of activation of a second direct-current circuit;
- the first direct-current circuit to transmit, in response to a determination that the first capacitor satisfies the threshold of activation of the second direct-current circuit, direct-current power between the direct-current battery of the electric vehicle and the second direct-current circuit;
- and
- the first direct-current circuit to cause, from a charger assistant circuit having a voltage less than a maximum voltage of an alternating-current circuit, a second capacitor of the second direct-current circuit to charge to a capacitance satisfying a threshold of activation of the alternating-current circuit.
2 more elements
Dependencies are inferred from the claim text.