Back to results
US 11,707,969 B2Granted
Methods and systems for a vehicle air conditioning system
AssigneeFord Global Technologies, LLC
InventorsJim Rollinson, Mike Rowland, John Rollinger, Hugh Hamilton, Stephen White
Life of this patent
Estimating the term…
Abstract
Methods and systems are provided for an air conditioning system. An example method of determining current through a compressor suction valve in a vehicle air conditioning (AC) system is provided, the AC system comprises an evaporator fan and the method includes determining the speed of the evaporator fan and determining the current through the suction valve based on the speed of the evaporator fan.
Claims20
A method comprising:
- determining a speed of an evaporator fan;
- determining a current through a compressor suction valve in an air conditioning (AC) system based on the speed of the evaporator fan.
A vehicle air conditioning system comprising:
- a compressor configured to compress refrigerant, the compressor comprising a compressor suction valve configured to draw refrigerant into the compressor;
- and
- an evaporator comprising at least one coil and an evaporator fan configured to direct air entering the evaporator toward the at least one coil;
- wherein the system is configured to direct compressed refrigerant from the compressor toward and through the at least one coil of the evaporator, and wherein the system further comprises:
- a controller with computer-readable instructions stored on memory thereof that when executed enable the controller to set a current through the compressor suction valve based on at least a speed of the evaporator fan.
2 more elements
A system, comprising:
- an air conditioning system comprising a suction valve and an evaporator fan;
- and
- a controller with computer-readable instructions stored on memory thereof that when executed enable the controller to:
- determine a first relationship between current through the suction valve and at least one of a temperature of air entering the evaporator fan, a target temperature of the evaporator fan, and a first evaporator fan speed;
- determine a second relationship between current through the suction valve and at least one of the temperature of air entering the evaporator fan, the target temperature of the evaporator fan, and a second evaporator fan speed;
- set a suction valve current based on an interpolation between the first relationship and the second relationship.
3 more elements
Dependencies are inferred from the claim text.