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US 12,179,561 B2Granted
Control of dual compressor climate system
AssigneeFord Global Technologies, LLC
InventorsJennifer Helen Chang, Rohan Shrivastava, Brett Allen Dunn, Jordan Mazaira
Life of this patent
Estimating the term…
Abstract
While a speed of a first compressor during operation is less than a threshold speed, a speed of a second compressor during operation is prevented from falling below a minimum threshold speed that is defined by a sum of the speed of the first compressor and a predefined offset speed delta such that the minimum threshold speed changes as the speed of the first compressor changes.
Claims19
An automotive climate system comprising:
- first and second compressors;
- and
- a controller programmed to,
- while a speed of the first compressor during operation is less than a threshold speed, prevent a speed of the second compressor during operation from falling below a minimum threshold speed that is defined by a sum of the speed of the first compressor and a predefined offset speed delta such that the minimum threshold speed changes as the speed of the first compressor changes, and
- while the speed of the first compressor during operation is greater than the threshold speed, prevent the speed of the second compressor during operation from exceeding a maximum threshold speed that is defined by a difference between the speed of the first compressor and the predefined offset speed delta such that the maximum threshold speed changes as the speed of the first compressor changes.
2 more elements
A method comprising:
- operating first and second compressors of a climate system such that a speed of the second compressor is at least equal to a sum of a speed of the first compressor and a predetermined offset speed delta responsive to the speed of the first compressor being less than a threshold speed.
A vehicle comprising:
- a traction battery;
- a cabin;
- a first compressor associated with cooling one of the traction battery or cabin;
- a second compressor associated with cooling the other of the traction battery or cabin;
- and
- a controller programmed to operate the first and second compressors such that a speed of the second compressor does not exceed a difference between a speed of the first compressor and a predetermined offset speed delta responsive to the speed of the first compressor being greater than a threshold speed.
3 more elements
Dependencies are inferred from the claim text.