COOLANT-REFRIGERANT HEAT EXCHANGER AND THERMAL MANAGEMENT SYSTEM
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Dec 12, 2024
app pub date -
Oct 13, 2022
filing date -
Oct 13, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A thermal management system is provided for an electric vehicle. The thermal management system includes a refrigerant system, a coolant system, a plurality of thermal loads, and a coolant-refrigerant heat exchanger, that includes a secondary heater positioned to heat both the refrigerant and the coolant in the coolant-refrigerant heat exchanger. The secondary heater is sized to evaporate all of the refrigerant passing through the refrigerant flow path. A control system is operatively connected to the coolant-refrigerant heat exchanger, and is programmed to: operate the coolant-refrigerant heat exchanger in a secondary-heat-only mode in which the secondary heater evaporates the refrigerant in the refrigerant flow path without any heat input from the coolant in the coolant flow path, and to operate the coolant-refrigerant heat exchanger in a heat-scavenging mode in which at least some heat from the coolant in the coolant flow path evaporates the refrigerant in the refrigerant flow path.
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