Method and apparatus for controlling a coolant circuit thermally coupled to a power electronics device
First Claim
1. Vehicle system, comprising:
- a cooling circuit thermally coupled via a fluidic heat exchanger to a power electronics device, said cooling circuit comprising a fluidic pump fluidly connected to a fluid/air heat exchanger, an air pump configured to transfer air across the fluid/air heat exchanger, and a shutter device configured to control airflow across the fluid/air heat exchanger; and
a controller controlling the fluidic pump to control coolant flow through the fluid/air heat exchanger to reject heat from the power electronics device to the coolant and correspondingly controlling the air pump and the shutter device to control airflow across the fluid/air heat exchanger to reject heat from the coolant to achieve a preferred heat rejection from the power electronics device.
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0 Petitions
Accused Products
Abstract
A vehicle system includes a power electronics device and a coolant circuit thermally coupled to the power electronics device. The coolant circuit includes a fluidic pump and a fluid/air heat exchanger, an air pump configured to transfer air across the fluid/air heat exchanger, and a shutter device configured to control airflow across the fluid/air heat exchanger. A controller controls the fluidic pump to control coolant flow through the fluid/air heat exchanger to reject heat from the power electronics device to the coolant and correspondingly controls the air pump and the shutter device to control airflow across the fluid/air heat exchanger to reject heat from the coolant to achieve a preferred heat rejection from the power electronics device.
9 Citations
15 Claims
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1. Vehicle system, comprising:
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a cooling circuit thermally coupled via a fluidic heat exchanger to a power electronics device, said cooling circuit comprising a fluidic pump fluidly connected to a fluid/air heat exchanger, an air pump configured to transfer air across the fluid/air heat exchanger, and a shutter device configured to control airflow across the fluid/air heat exchanger; and a controller controlling the fluidic pump to control coolant flow through the fluid/air heat exchanger to reject heat from the power electronics device to the coolant and correspondingly controlling the air pump and the shutter device to control airflow across the fluid/air heat exchanger to reject heat from the coolant to achieve a preferred heat rejection from the power electronics device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. Controller-implemented method for controlling a cooling circuit thermally coupled via a fluidic heat exchanger to an on-vehicle power electronics device, said cooling circuit comprising a fluidic pump fluidly connected to a fluid/air heat exchanger, an air pump configured to transfer air across the fluid/air heat exchanger, and a shutter device configured to control airflow across the fluid/air heat exchanger, the method comprising:
controlling the fluidic pump to control coolant flow through the fluid/air heat exchanger to reject heat from the power electronics device to the coolant and correspondingly controlling the air pump and the shutter device to control airflow across the fluid/air heat exchanger to reject heat from the coolant to achieve a preferred heat rejection from the power electronics device. - View Dependent Claims (14, 15)
Specification