Automotive climate system and method of controlling same
AssigneeFord Global Technologies, LLC
InventorsSusan Rebecca Cikanek, William David Treharne, Paul Stephen Bryan, David Jason Mack
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Abstract
An automotive climate control system includes an evaporator, a variable speed compressor and a controller. The controller is configured to periodically alter a previous target evaporator temperature at a selected rate to generate a current target evaporator temperature, select a target compressor speed based on a difference between an actual evaporator temperature and the current target evaporator temperature, and command the compressor to operate at the target compressor speed.
Claims13
A method for controlling an automotive climate system comprising:
- for each of a plurality of consecutive time intervals,
- determining a current target evaporator temperature based on a previous target evaporator temperature, the current target evaporator temperature being different than the previous target evaporator temperature,
- selecting a target compressor speed based on a difference between an actual evaporator temperature and the current target evaporator temperature, and
- commanding the compressor to operate at the target compressor speed.
A method for controlling a variable speed compressor:
- for each of a plurality of consecutive time intervals,
- altering a target evaporator temperature from an immediately preceding time interval by a selected amount to generate a current target temperature,
- selecting a target compressor speed based on a difference between an actual evaporator temperature and the current target evaporator temperature, and
- commanding the compressor to operate at the target compressor speed.
Dependencies are inferred from the claim text.