System, method, and apparatus for integrated hybrid power system thermal management
First Claim
1. A system, comprising:
- an internal combustion engine and a first coolant thermally coupled to the internal combustion engine and circulated by a first pump;
an electric component and a second coolant thermally coupled to the electric component and circulated by a second pump;
a first heat exchanger structured to transfer thermal energy between the first coolant and the second coolant;
an auxiliary fluid stream having a temperature below a target operating temperature for the electric component;
a second heat exchanger structured to transfer thermal energy between the second coolant and the auxiliary fluid stream;
wherein the electrical component is positioned downstream of the first heat exchanger and upstream of the second heat exchanger; and
wherein the second heat exchanger is positioned upstream of the first heat exchanger.
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Accused Products
Abstract
A system includes an engine and a first coolant thermally coupled to the engine and circulated by a first pump; a hybrid battery pack thermally coupled to a second coolant circulated by a second pump; and an electric component thermally coupled to the second coolant. The system includes a first heat exchanger that transfers thermal energy between the first coolant and the second coolant. The system includes a second heat exchanger that transfers thermal energy between the second coolant and the auxiliary fluid stream having a temperature below a target operating temperature for the hybrid battery pack. The system includes a first bypass for the first or second coolant at the first heat exchanger, a second bypass for the second coolant or the auxiliary fluid stream at the second heat exchanger, and a component bypass for the second coolant at the hybrid battery pack or the electric component.
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Citations
28 Claims
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1. A system, comprising:
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an internal combustion engine and a first coolant thermally coupled to the internal combustion engine and circulated by a first pump; an electric component and a second coolant thermally coupled to the electric component and circulated by a second pump; a first heat exchanger structured to transfer thermal energy between the first coolant and the second coolant; an auxiliary fluid stream having a temperature below a target operating temperature for the electric component; a second heat exchanger structured to transfer thermal energy between the second coolant and the auxiliary fluid stream; wherein the electrical component is positioned downstream of the first heat exchanger and upstream of the second heat exchanger; and wherein the second heat exchanger is positioned upstream of the first heat exchanger. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 28)
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14. A system, comprising:
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an internal combustion engine and a first coolant thermally coupled to the internal combustion engine and circulated by a first pump; a hybrid battery pack and a second coolant thermally coupled to the hybrid battery pack and circulated by a second pump; an additional electric component, the second coolant thermally coupled to the additional electric component; a first heat exchanger structured to transfer thermal energy between the first coolant and the second coolant; an auxiliary fluid stream having a temperature below a target operating temperature for the hybrid battery pack; a second heat exchanger structured to transfer thermal energy between the second coolant and the auxiliary fluid stream; a first bypass valve structured to bypass a selectable portion of one of the second coolant and the first coolant around the first heat exchanger; a second bypass valve structured to bypass a selectable portion of one of the second coolant and the auxiliary fluid stream around the second heat exchanger; at least one component bypass valve structured to bypass a selectable portion of the second coolant around one of the hybrid battery pack and the additional electric component; wherein the additional electric component is positioned downstream of the first heat exchanger and upstream of the second heat exchanger; and wherein the hybrid battery pack is positioned downstream of the second heat exchanger and upstream of the first heat exchanger. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. A method, comprising:
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interpreting a temperature of a hybrid battery pack; circulating a second coolant thermally coupled to the hybrid battery pack; interpreting a temperature of an additional electric component; in response to the temperature of the hybrid battery pack being below a first threshold operating temperature, increasing a heat transfer rate of a first heat exchanger, the first heat exchanger structured to transfer thermal energy between an engine coolant and the second coolant; in response to the temperature of the hybrid battery pack being above a second threshold operating temperature, increasing a heat transfer rate of a second heat exchanger, the second heat exchanger structured to transfer thermal energy between an auxiliary fluid stream and the second coolant; in response to the temperature of the additional electric component being below a third threshold temperature, increasing the heat transfer rate of the first heat exchanger; and in response to the temperature of the additional electric component being above a fourth threshold temperature, increasing the heat transfer rate of the second heat exchanger. - View Dependent Claims (23, 24)
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25. A system, comprising:
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an internal combustion engine and a first coolant thermally coupled to the internal combustion engine and circulated by a first pump; a hybrid battery pack and a second coolant thermally coupled to the hybrid battery pack and circulated by a second pump; a first heat exchanger structured to transfer thermal energy between the first coolant and the second coolant; an auxiliary fluid stream having a temperature below a target operating temperature for the hybrid battery pack; a second heat exchanger structured to transfer thermal energy between the second coolant and the auxiliary fluid stream; a means for controlling a temperature of the hybrid battery pack within a battery pack operational temperature window; wherein the hybrid battery pack is positioned downstream of the first heat exchanger and upstream of the second heat exchanger; and wherein the first heat exchanger is downstream of the second heat exchanger. - View Dependent Claims (26, 27)
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Specification