Air-Conditioning System

Abstract

The invention relates to an air-conditioning system. A condenser fan ( 30 ) is variable with regard to its fan performance. The compressor ( 2 ) is variable with regard to its compression performance. Two temperature sensors ( 61, 62 ) are assigned to the evaporator ( 1 ) and the condenser ( 3 ). A third temperature sensor ( 63 ) senses an actual temperature outside the air-conditioning system. A control unit ( 5 ) acts in a regulating manner on the condenser fan ( 30 ) and/or the compressor ( 2 ), so that the air-conditioning system runs in one mode of at least two different modes.

1 - 11 . (canceled) 
     
     
         12 . An air-conditioning system, comprising:
 an evaporator;   an evaporator fan assigned to the evaporator;   a condenser;   a variable-speed condenser fan assigned to the condenser;   a variable-speed compressor;   an expansion element;   a control unit;   a first temperature sensor assigned to the evaporator;   a second temperature sensor assigned to the condenser; and   a third temperature sensor configured to sense an actual temperature outside the air-conditioning system,   wherein the control unit is configured to process measured temperature values of the third temperature sensor with regard to a predeterminable temperature setpoint value,   wherein the control unit is further configured to act in a regulating manner on the variable-speed condenser fan and/or the variable-speed compressor, such that the air-conditioning system runs in one mode of at least two different modes.   
     
     
         13 . The air-conditioning system of  claim 12 , wherein the evaporator fan is a variable-speed evaporator fan, and wherein the control unit is further configured to act in a regulating manner on the variable-speed evaporator fan, such that the air-conditioning system runs in one mode. 
     
     
         14 . The air-conditioning system of  claim 12 , wherein the first temperature sensor is configured and arranged to sense temperature values in an area of the evaporator in which a phase change of a refrigerant in the evaporator occurs. 
     
     
         15 . The air-conditioning system of  claim 12 , wherein the second temperature sensor is configured and arranged to sense temperature values in an area of the condenser, in which a phase change of a refrigerant in the condenser occurs. 
     
     
         16 . The air-conditioning system of  claim 12 , wherein the control unit is further configured to process measured temperature values of the first temperature sensor and of the second temperature sensor so as to obtain information about a pressure of a refrigerant in the evaporator and the condenser. 
     
     
         17 . The air-conditioning system of  claim 12 , wherein in a minimum current consumption mode, the control unit is further configured to act in a regulating manner on the variable-speed condenser fan such that a pressure of a refrigerant in the condenser is in a minimum range. 
     
     
         18 . The air-conditioning system of  claim 17 , wherein in the minimum current consumption mode, the control unit is further configured to increase fan performance of the evaporator fan to reduce the pressure of the refrigerant in the condenser. 
     
     
         19 . The air-conditioning system of  claim 12 , wherein in a minimum current consumption mode, the control unit is further configured to act in a regulating manner on the evaporator fan and/or the variable-speed condenser fan such that a pressure of a refrigerant in the evaporator is equal to a pressure of a refrigerant in the condenser within a predeterminable tolerance range. 
     
     
         20 . The air-conditioning system of  claim 19 , wherein in a minimum current consumption mode, the control unit is further configured to act in a regulating manner on the variable-speed condenser fan such that the pressure of the refrigerant in the condenser is in a minimum range. 
     
     
         21 . The air-conditioning system of  claim 20 , wherein in the minimum current consumption mode, the control unit is further configured to increase fan performance of the evaporator fan to reduce the pressure of the refrigerant in the condenser. 
     
     
         22 . The air-conditioning system of  claim 12 , wherein in a silent mode, the control unit is further configured to act in a regulating manner on the evaporator fan and the variable-speed condenser fan such that fan performance of the variable-speed condenser fan and fan performance of the evaporator fan are each in a predeterminable minimum range, wherein in the silent mode, the control unit is further configured to act on the variable-speed compressor depending on a setpoint temperature and the measured temperature values of the third temperature sensor, and wherein in the silent mode, the control unit is further configured to reduce compression performance of the variable-speed compressor and/or increases the fan performance of the variable-speed condenser fan if the pressure of the refrigerant in the variable-speed compressor is above a limit value. 
     
     
         23 . The air-conditioning system of  claim 12 , wherein the air-conditioning system is configured to be connected to a rechargeable energy storage unit, wherein the control unit is further configured to determine an amount of energy stored in the energy storage unit, and wherein in an optimum accumulator operation mode, the control unit is further configured to act in a regulating manner on the evaporator fan and/or the variable-speed condenser fan and/or the variable-speed compressor based on a setpoint temperature which can be entered, the determined amount of energy, and a predeterminable running time, such that the air-conditioning system maintains the actual temperature within a predeterminable limit range until the end of the running time. 
     
     
         24 . The air-conditioning system of  claim 12 , wherein in a test mode, the control unit is further configured to act in a regulating manner on the evaporator fan and/or the variable-speed condenser fan and/or the variable-speed compressor such that a refrigerant in the evaporator has a predeterminable evaporator test pressure and/or a refrigerant in the condenser has a predeterminable condenser test pressure, wherein the control unit is further configured to determine a value of a current consumption of the variable-speed compressor, and wherein the control unit is further configured to derive information as to whether there is a loss of refrigerant based on the determined value of current consumption and stored data. 
     
     
         25 . The air-conditioning system of  claim 12 , wherein the control unit is further configured to evaluate measured temperature values of the second temperature sensor and determine whether a pressure of a refrigerant in the condenser is within a permissible pressure range based on the evaluated measured temperature values.