US20120318000A1 - Vehicle with air conditioning system - Google Patents
Vehicle with air conditioning system Download PDFInfo
- Publication number
- US20120318000A1 US20120318000A1 US13/328,396 US201113328396A US2012318000A1 US 20120318000 A1 US20120318000 A1 US 20120318000A1 US 201113328396 A US201113328396 A US 201113328396A US 2012318000 A1 US2012318000 A1 US 2012318000A1
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- United States
- Prior art keywords
- air
- heat exchanger
- conditioning system
- vehicle
- intake air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/0073—Control systems or circuits characterised by particular algorithms or computational models, e.g. fuzzy logic or dynamic models
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
- B60H1/00828—Ventilators, e.g. speed control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H1/00899—Controlling the flow of liquid in a heat pump system
Definitions
- the present invention relates to a vehicle with air conditioning system, and to a method of operating an air conditioning system.
- auxiliary heater is typically associated to the heat exchanger in order to compensate the difference to a required total heating output.
- An example of an auxiliary heater includes a PTC (Positive Temperature Coefficient) heating element.
- a vehicle includes an air conditioning system for conditioning intake air flowing into a vehicle interior, with the air conditioning system having a primary heat exchanger in thermal communication with a drive unit via a coolant circuit, a compressor, a secondary heat exchanger disposed jointly with the compressor in a refrigerant circuit, the secondary heat exchanger operating as a condenser in a heating mode of the air conditioning system and jointly with the primary heat exchanger giving off heat to the intake air, and a control device controlling operation of the refrigerant circuit in response to an input by a user, the control device including an evaluation unit to carry out a comparison between a desired heat supply commensurate with the input by the user and a determined actual heat supply, and generating an output signal for operating the compressor in response to the comparison.
- the actual heat supply can be determined only on the basis of a parameter of the intake air. As a result, there is no need for executing complex measurement of parameters of the coolant circuit or refrigerant circuit.
- the compressor has a maximum output that can be set by the control device and is at a level to allow the secondary heat exchanger to generate a heat output which exceeds a heat output of a conventional PTC (Positive Temperature Coefficient) heating element.
- a conventional PTC heating element the provision of the secondary heat exchanger in accordance with the present invention allows a significantly greater efficiency, i.e. the primary energy that has to be used is significantly less compared to a conventional auxiliary heating concept.
- the maximally adjustable output of the compressor enables a greater heating output than conventional auxiliary heating concepts such as conventional PTC heating elements, the risk for “oversized” concepts when using the coolant circuit as heat pumps is reduced.
- the output data is directly proportional to the energy consumption.
- the present invention allows application of a control concept which ensures the operation of the heat pump at a defined output limit beforehand.
- the actual heat supply can be ascertained by using temperature sensors which respectively detect an air entry temperature and an air exit temperature of the heating assembly comprised of the primary and secondary heat exchangers.
- the temperature sensors may be arranged downstream and upstream of the heating assembly, respectively.
- a determination unit may be operatively connected to the evaluation unit and adapted to determine an air mass flow of the intake air for ascertaining the actual heat supply.
- the determination of the air mass flow of the intake air can be carried out by special measuring elements.
- Currently preferred is however an indirect determination of the air mass flow of the intake air on the basis of operating parameters of already installed equipments.
- a flow flap and a fan may be provided for transport of the air mass flow of the intake air, with the flow flap and the fan being placed upstream of the heating assembly to allow adjustment of a flow cross section and flow rate of the intake air.
- the determination unit can be constructed to determine the air mass flow as a function of an electric fan output of the fan or a fan parameter in correlation with the electric fan output, and a flap position of the flow flap. Depending on the flap position, the flow flap is able to adjust the air mass flow of the intake air through the heating assembly or a bypass air mass which circumvents the heating assembly.
- the determination unit is able to determine the air mass flow of the intake air on the basis of an electric fan output and flap position of the flow flap.
- the determination unit can store a characteristic diagram from which the resultant air mass flow can be read out when inputting a value pair comprised of fan output and flap position.
- the characteristic diagram can be defined empirically on the basis of experiments.
- the air conditioning system may include an air conditioner arranged upstream of the heating assembly and including an evaporator which is disposed in the refrigerant circuit.
- the coolant circuit components can be controlled in such a way that the evaporator is idle while only the secondary heat exchanger operates as condenser.
- the secondary heat exchanger is idle while the evaporator is adapted to absorb heat from the intake air.
- the air conditioning system can have a temperature sensor which is operably connected to the evaporator for ascertaining an evaporation temperature in the cooling mode.
- the temperature sensor can advantageously be provided on the outside of the evaporator.
- the evaporator-side temperature sensor can be so constructed to assume a dual function involving not only detection of the evaporation temperature but in addition also the air entry temperature of the heating assembly in the heating mode.
- a method of operating an air conditioning system of a vehicle includes determining an actual heat supply into a vehicle interior, comparing the determined actual heat supply with a desired heat supply commensurate with a user's input, generating a manipulated variable as a function of the comparison, and operating a compressor in response to the output signal and causing a secondary heat exchanger to operate as a condenser in a heating mode of the air conditioning system so as to give off heat to the intake air flowing into the vehicle interior air jointly with a primary heat exchanger, when the actual heat supply is below the desired heat supply.
- FIG. 1 is a circuit diagram of an air conditioning system of a vehicle, operating in the heating mode
- FIG. 2 is a circuit diagram of the air conditioning system of FIG. 1 , operating in the cooling mode.
- FIG. 1 shows a circuit diagram of an air conditioning system of a vehicle for cooling or heating a vehicle interior 2 of a vehicle, not shown in greater detail.
- FIG. 1 shows the air conditioning system operating in the heating mode to heat the vehicle interior 2 .
- Those components of the air conditioning system through which coolant flows are highlighted by thicker lines in comparison to those components that are idle when operating the air conditioning system in the heating mode.
- coolant is routed from a compressor 3 via a 3/2 directional control valve 5 to a first high-pressure conduit 6 which leads in the direction of the arrow to an auxiliary or secondary heat exchanger 7 .
- the secondary heat exchanger 7 is arranged within an air channel in an air conditioner 9 , indicated by dashed line, with intake air I being conducted by the air channel to the vehicle interior 2 .
- the secondary heat exchanger 7 forms jointly with a primary heat exchanger 8 a heating assembly 10 through which the intake air I flows.
- the primary heat exchanger 8 is arranged in a coolant circuit 13 which is only hinted here by a dash-dot line and used to conduct waste heat generated by an internal combustion engine (not shown) to the primary heat exchanger 8 .
- the secondary heat exchanger 7 operates as condenser which is in flow communication with a radiator-side heat exchanger 17 via a second high-pressure conduit 11 and a 3/2 directional control valve 12 with interposition of an expansion valve 15 .
- the radiator-side heat exchanger 17 operates in the heating mode as an evaporator which draws heat from ambient air.
- the radiator-side heat exchanger 17 is connected downstream via a low-pressure conduit 19 to the intake side of the compressor 3 .
- the low-pressure conduit 19 is routed via an internal heat exchanger 21 in which a heat exchange can take place to the high-pressure side, i.e. to the high-pressure conduit 11 .
- the air conditioner 9 is in flow communication with an upstream air channel portion 31 in which a fan 33 is arranged for conveying the intake air I.
- a branch point Disposed downstream of the fan 33 is a branch point by which the air channel 31 is split into a bypass line 34 and a feed line 35 , with the feed line 35 conducting intake air I to the air conditioner 9 .
- a temperature mixing flap 36 Arranged in the branch point is a temperature mixing flap 36 which adjusts the flow cross section in the feed line 35 in dependence on the flap position.
- a control device 37 is provided for control of the refrigerant circuit of the air conditioning system based on a user's input. For that purpose, the control device 37 generates an output signal Y for operating the compressor 3 .
- the output signal Y is generated by the control device 37 in response to a determination of intake parameters by temperature sensors 39 , 40 which are provided in the air conditioner 9 and arranged upstream and downstream of the heating assembly 10 , respectively.
- the temperature sensors 39 , 40 ascertain the air entry temperature T e and the air exit temperature T a of the heating assembly 10 .
- a position sensor 41 is provided to detect the actual angle position W of the flow flap 36 and to transmit a respective signal to a determination unit comprised of program modules 42 , 43 .
- the electric voltage U G of the fan 33 is also ascertained.
- the electric voltage U G correlates with the fan output and a respective signal is transmitted to the determination unit 42 , 43 .
- the program module 42 of the determination unit stores a characteristic diagram from which the actual air mass flow of the intake air I can be read out in response to an input of an angle position W and a fan voltage U G .
- a communication link is provided between the program module 42 and the program module 43 , with the program module 43 ascertaining the actual heat supply Q actual on the basis of a temperature difference between the air entry temperature T e and the air exit temperature T a and on the basis of the ascertained air mass flow m.
- the determined actual heat supply Q actual can be compared in an evaluation unit 38 of the control device 37 with a desired heat supply Q desired as inputted by a user. As a result of this comparison, the control device 37 generates the output signal Y for operating the compressor 3 .
- the secondary heat exchanger 7 allows realization of a far superior heating output through respective operation of the compressor 3 . This affords the user a greater comfort level. Also, the comfort in the vehicle interior 2 can be maintained by simply regulating down the compressor 3 to a predefined output limit.
- FIG. 2 shows the operation of the air conditioning system in the cooling mode, with the conduits through which coolant flows being highlighted by thick lines.
- the 3/2 directional control valve 5 blocks downstream of the compressor 3 the high-pressure conduit 6 which leads to the secondary heat exchanger 7 in the air conditioner 9 whereas an intermediate conduit 23 opens to the low-pressure conduit 19 .
- a shut-off valve 25 is arranged at a branch point to the conduit 19 at a side distal to the heat exchanger 17 and assumes a closed switching position. As a result, coolant is able to flow through the radiator-side heat exchanger 17 which operates as condenser in the cooling mode to give off heat to the ambient air.
- the coolant then flows via a one-way valve 27 placed parallel to the expansion valve 15 , via the internal heat exchanger 21 , and via the 3/2/directional control valve 12 , to an evaporator 29 disposed within the air conditioner 9 .
- Disposed upstream of the evaporator 29 is an expansion valve 32 .
- the control of the coolant circuit in the cooling mode may be realized with the aid of the control device 37 in like manner as in the heating mode.
- the difference to FIG. 1 resides in the fact that in the cooling mode as shown in FIG. 2 , the actual heat flow to be removed from the intake air I can be determined on the basis of a temperature difference between an evaporator entry temperature and an evaporator exit temperature.
- the evaporator entry temperature is hereby detected by a temperature sensor 45 while the evaporator exit temperature is detected by the temperature sensor 40 .
Abstract
Description
- This application claims the priority of German Patent Application, Serial No. 10 2010 054 957.6, filed Dec. 17, 2010, pursuant to 35 U.S.C. 119(a)-(d), the content of which is incorporated herein by reference in its entirety as if fully set forth herein.
- The present invention relates to a vehicle with air conditioning system, and to a method of operating an air conditioning system.
- The following discussion of related art is provided to assist the reader in understanding the advantages of the invention, and is not to be construed as an admission that this related art is prior art to this invention.
- The vehicle interior is heated as inflowing air is warmed up using a heat exchanger to which waste heat from an internal combustion engine for example is conducted via a coolant circuit. As the amount of generated waste heat is generally slight in modern vehicles, an auxiliary heater is typically associated to the heat exchanger in order to compensate the difference to a required total heating output. An example of an auxiliary heater includes a PTC (Positive Temperature Coefficient) heating element.
- It would be desirable and advantageous to provide an improved vehicle with air conditioning system and an improved method of operating an air conditioning system to obviate prior art shortcomings.
- According to one aspect of the present invention, a vehicle includes an air conditioning system for conditioning intake air flowing into a vehicle interior, with the air conditioning system having a primary heat exchanger in thermal communication with a drive unit via a coolant circuit, a compressor, a secondary heat exchanger disposed jointly with the compressor in a refrigerant circuit, the secondary heat exchanger operating as a condenser in a heating mode of the air conditioning system and jointly with the primary heat exchanger giving off heat to the intake air, and a control device controlling operation of the refrigerant circuit in response to an input by a user, the control device including an evaluation unit to carry out a comparison between a desired heat supply commensurate with the input by the user and a determined actual heat supply, and generating an output signal for operating the compressor in response to the comparison.
- According to another advantageous feature of the present invention, the actual heat supply can be determined only on the basis of a parameter of the intake air. As a result, there is no need for executing complex measurement of parameters of the coolant circuit or refrigerant circuit.
- According to another advantageous feature of the present invention, the compressor has a maximum output that can be set by the control device and is at a level to allow the secondary heat exchanger to generate a heat output which exceeds a heat output of a conventional PTC (Positive Temperature Coefficient) heating element. In contrast to a PTC heating element, the provision of the secondary heat exchanger in accordance with the present invention allows a significantly greater efficiency, i.e. the primary energy that has to be used is significantly less compared to a conventional auxiliary heating concept. As the maximally adjustable output of the compressor enables a greater heating output than conventional auxiliary heating concepts such as conventional PTC heating elements, the risk for “oversized” concepts when using the coolant circuit as heat pumps is reduced. In general the output data is directly proportional to the energy consumption. The present invention allows application of a control concept which ensures the operation of the heat pump at a defined output limit beforehand.
- According to another advantageous feature of the present invention, the actual heat supply can be ascertained by using temperature sensors which respectively detect an air entry temperature and an air exit temperature of the heating assembly comprised of the primary and secondary heat exchangers. The temperature sensors may be arranged downstream and upstream of the heating assembly, respectively.
- According to another advantageous feature of the present invention, a determination unit may be operatively connected to the evaluation unit and adapted to determine an air mass flow of the intake air for ascertaining the actual heat supply. The determination of the air mass flow of the intake air can be carried out by special measuring elements. Currently preferred is however an indirect determination of the air mass flow of the intake air on the basis of operating parameters of already installed equipments. For example, in the presence of a special ventilation structure in the flow path of the intake air, a flow flap and a fan may be provided for transport of the air mass flow of the intake air, with the flow flap and the fan being placed upstream of the heating assembly to allow adjustment of a flow cross section and flow rate of the intake air.
- According to another advantageous feature of the present invention, the determination unit can be constructed to determine the air mass flow as a function of an electric fan output of the fan or a fan parameter in correlation with the electric fan output, and a flap position of the flow flap. Depending on the flap position, the flow flap is able to adjust the air mass flow of the intake air through the heating assembly or a bypass air mass which circumvents the heating assembly.
- In such a configuration, the determination unit is able to determine the air mass flow of the intake air on the basis of an electric fan output and flap position of the flow flap. For this purpose, the determination unit can store a characteristic diagram from which the resultant air mass flow can be read out when inputting a value pair comprised of fan output and flap position. The characteristic diagram can be defined empirically on the basis of experiments.
- According to another advantageous feature of the present invention, the air conditioning system may include an air conditioner arranged upstream of the heating assembly and including an evaporator which is disposed in the refrigerant circuit. When operating in the heating mode, the coolant circuit components can be controlled in such a way that the evaporator is idle while only the secondary heat exchanger operates as condenser. In the cooling mode, on the other hand, the secondary heat exchanger is idle while the evaporator is adapted to absorb heat from the intake air.
- According to another advantageous feature of the present invention, the air conditioning system can have a temperature sensor which is operably connected to the evaporator for ascertaining an evaporation temperature in the cooling mode. The temperature sensor can advantageously be provided on the outside of the evaporator. To reduce the number of components, the evaporator-side temperature sensor can be so constructed to assume a dual function involving not only detection of the evaporation temperature but in addition also the air entry temperature of the heating assembly in the heating mode.
- According to another aspect of the present invention, a method of operating an air conditioning system of a vehicle includes determining an actual heat supply into a vehicle interior, comparing the determined actual heat supply with a desired heat supply commensurate with a user's input, generating a manipulated variable as a function of the comparison, and operating a compressor in response to the output signal and causing a secondary heat exchanger to operate as a condenser in a heating mode of the air conditioning system so as to give off heat to the intake air flowing into the vehicle interior air jointly with a primary heat exchanger, when the actual heat supply is below the desired heat supply.
- Other features and advantages of the present invention will be more readily apparent upon reading the following description of currently preferred exemplified embodiments of the invention with reference to the accompanying drawing, in which:
-
FIG. 1 is a circuit diagram of an air conditioning system of a vehicle, operating in the heating mode; and -
FIG. 2 is a circuit diagram of the air conditioning system ofFIG. 1 , operating in the cooling mode. - Throughout all the figures, same or corresponding elements may generally be indicated by same reference numerals. These depicted embodiments are to be understood as illustrative of the invention and not as limiting in any way. It should also be understood that the figures are not necessarily to scale and that the embodiments are sometimes illustrated by graphic symbols, phantom lines, diagrammatic representations and fragmentary views. In certain instances, details which are not necessary for an understanding of the present invention or which render other details difficult to perceive may have been omitted.
- Turning now to the drawing, and in particular to
FIG. 1 , there is shown a circuit diagram of an air conditioning system of a vehicle for cooling or heating avehicle interior 2 of a vehicle, not shown in greater detail.FIG. 1 shows the air conditioning system operating in the heating mode to heat thevehicle interior 2. Those components of the air conditioning system through which coolant flows are highlighted by thicker lines in comparison to those components that are idle when operating the air conditioning system in the heating mode. Accordingly, coolant is routed from a compressor 3 via a 3/2directional control valve 5 to a first high-pressure conduit 6 which leads in the direction of the arrow to an auxiliary orsecondary heat exchanger 7. Thesecondary heat exchanger 7 is arranged within an air channel in an air conditioner 9, indicated by dashed line, with intake air I being conducted by the air channel to thevehicle interior 2. - The
secondary heat exchanger 7 forms jointly with a primary heat exchanger 8 aheating assembly 10 through which the intake air I flows. Theprimary heat exchanger 8 is arranged in acoolant circuit 13 which is only hinted here by a dash-dot line and used to conduct waste heat generated by an internal combustion engine (not shown) to theprimary heat exchanger 8. - According to
FIG. 1 , thesecondary heat exchanger 7 operates as condenser which is in flow communication with a radiator-side heat exchanger 17 via a second high-pressure conduit 11 and a 3/2directional control valve 12 with interposition of anexpansion valve 15. The radiator-side heat exchanger 17 operates in the heating mode as an evaporator which draws heat from ambient air. The radiator-side heat exchanger 17 is connected downstream via a low-pressure conduit 19 to the intake side of the compressor 3. The low-pressure conduit 19 is routed via aninternal heat exchanger 21 in which a heat exchange can take place to the high-pressure side, i.e. to the high-pressure conduit 11. - As further shown in
FIG. 1 , the air conditioner 9 is in flow communication with an upstreamair channel portion 31 in which afan 33 is arranged for conveying the intake air I. Disposed downstream of thefan 33 is a branch point by which theair channel 31 is split into abypass line 34 and afeed line 35, with thefeed line 35 conducting intake air I to the air conditioner 9. Arranged in the branch point is a temperature mixingflap 36 which adjusts the flow cross section in thefeed line 35 in dependence on the flap position. - A
control device 37 is provided for control of the refrigerant circuit of the air conditioning system based on a user's input. For that purpose, thecontrol device 37 generates an output signal Y for operating the compressor 3. The output signal Y is generated by thecontrol device 37 in response to a determination of intake parameters bytemperature sensors heating assembly 10, respectively. Thetemperature sensors heating assembly 10. In addition, as shown inFIG. 1 , aposition sensor 41 is provided to detect the actual angle position W of theflow flap 36 and to transmit a respective signal to a determination unit comprised ofprogram modules - In addition to the angle position W of the
flow flap 36, the electric voltage UG of thefan 33 is also ascertained. The electric voltage UG correlates with the fan output and a respective signal is transmitted to thedetermination unit program module 42 of the determination unit stores a characteristic diagram from which the actual air mass flow of the intake air I can be read out in response to an input of an angle position W and a fan voltage UG. A communication link is provided between theprogram module 42 and theprogram module 43, with theprogram module 43 ascertaining the actual heat supply Qactual on the basis of a temperature difference between the air entry temperature Te and the air exit temperature Ta and on the basis of the ascertained air mass flow m. The determined actual heat supply Qactual can be compared in anevaluation unit 38 of thecontrol device 37 with a desired heat supply Qdesired as inputted by a user. As a result of this comparison, thecontrol device 37 generates the output signal Y for operating the compressor 3. - Compared to a conventional PTC heating element, the
secondary heat exchanger 7 allows realization of a far superior heating output through respective operation of the compressor 3. This affords the user a greater comfort level. Also, the comfort in thevehicle interior 2 can be maintained by simply regulating down the compressor 3 to a predefined output limit. -
FIG. 2 shows the operation of the air conditioning system in the cooling mode, with the conduits through which coolant flows being highlighted by thick lines. In the cooling mode, the 3/2directional control valve 5 blocks downstream of the compressor 3 the high-pressure conduit 6 which leads to thesecondary heat exchanger 7 in the air conditioner 9 whereas anintermediate conduit 23 opens to the low-pressure conduit 19. A shut-offvalve 25 is arranged at a branch point to theconduit 19 at a side distal to theheat exchanger 17 and assumes a closed switching position. As a result, coolant is able to flow through the radiator-side heat exchanger 17 which operates as condenser in the cooling mode to give off heat to the ambient air. - The coolant then flows via a one-
way valve 27 placed parallel to theexpansion valve 15, via theinternal heat exchanger 21, and via the 3/2/directional control valve 12, to anevaporator 29 disposed within the air conditioner 9. Disposed upstream of theevaporator 29 is anexpansion valve 32. The control of the coolant circuit in the cooling mode may be realized with the aid of thecontrol device 37 in like manner as in the heating mode. The difference toFIG. 1 resides in the fact that in the cooling mode as shown inFIG. 2 , the actual heat flow to be removed from the intake air I can be determined on the basis of a temperature difference between an evaporator entry temperature and an evaporator exit temperature. The evaporator entry temperature is hereby detected by atemperature sensor 45 while the evaporator exit temperature is detected by thetemperature sensor 40. - While the invention has been illustrated and described in connection with currently preferred embodiments shown and described in detail, it is not intended to be limited to the details shown since various modifications and structural changes may be made without departing in any way from the spirit and scope of the present invention. The embodiments were chosen and described in order to explain the principles of the invention and practical application to thereby enable a person skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated.
- What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims and includes equivalents of the elements recited therein:
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102010054957.6 | 2010-12-17 | ||
DE102010054957A DE102010054957A1 (en) | 2010-12-17 | 2010-12-17 | Vehicle for use with air conditioner for conditioning supply air flowing in vehicle interior, has heat exchanger, which is coupled with drive unit thermally over coolant circuit |
Publications (1)
Publication Number | Publication Date |
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US20120318000A1 true US20120318000A1 (en) | 2012-12-20 |
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ID=46512088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US13/328,396 Abandoned US20120318000A1 (en) | 2010-12-17 | 2011-12-16 | Vehicle with air conditioning system |
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US (1) | US20120318000A1 (en) |
JP (1) | JP5942288B2 (en) |
DE (1) | DE102010054957A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9738138B2 (en) | 2014-03-19 | 2017-08-22 | Audi Ag | Vehicle air conditioner with a refrigerant circuit |
US20190011155A1 (en) * | 2017-07-10 | 2019-01-10 | Hanon Systems | Method for operating an air-conditioning system of a motor vehicle |
US20200023709A1 (en) * | 2017-03-13 | 2020-01-23 | Audi Ag | Cooling system of a vehicle, comprising a coolant circuit which can be operated as a cooling circuit for an ac operation and as a heat pump circuit for a heating operation |
US20200132204A1 (en) * | 2017-07-12 | 2020-04-30 | Audi Ag | Valve assembly for a refrigerant circuit |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6488694B2 (en) * | 2014-12-24 | 2019-03-27 | 株式会社デンソー | Refrigeration cycle equipment |
DE102016002429B4 (en) | 2016-03-01 | 2022-09-08 | Audi Ag | Method for determining the air mass flow of an air flow for air conditioning and vehicle with it |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5404729A (en) * | 1991-12-27 | 1995-04-11 | Nissan Motor Co., Ltd. | Heat pump type air conditioner for automotive vehicle |
JPH11235919A (en) * | 1998-02-20 | 1999-08-31 | Calsonic Corp | Air conditioner for heat pump type automobile |
US6715540B2 (en) * | 2000-04-28 | 2004-04-06 | Denso Corporation | Air-conditioning apparatus for vehicle |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3085335B2 (en) * | 1991-12-27 | 2000-09-04 | 株式会社デンソー | Air conditioner |
JPH06191253A (en) * | 1992-12-24 | 1994-07-12 | Nippondenso Co Ltd | Air conditioner for vehicle |
JP3237463B2 (en) * | 1995-05-17 | 2001-12-10 | 松下電器産業株式会社 | Air conditioning controller for electric vehicles |
DE69720727T2 (en) * | 1997-10-31 | 2003-11-06 | Calsonic Kansei Corp | Vehicle air conditioning |
JP3381592B2 (en) * | 1997-12-16 | 2003-03-04 | 日産自動車株式会社 | Hybrid vehicle air conditioner |
JPH11334354A (en) * | 1998-05-27 | 1999-12-07 | Zexel:Kk | Air conditioner for vehicle |
US6118099A (en) * | 1998-11-12 | 2000-09-12 | Daimlerchrysler Corporation | Controller for heating in reversible air conditioning and heat pump HVAC system for electric vehicles |
DE10047710C1 (en) * | 2000-09-25 | 2002-06-06 | Behr Hella Thermocontrol Gmbh | Regulation of the heating and cooling capacity in vehicle air conditioning |
JP2002283840A (en) * | 2001-01-18 | 2002-10-03 | Denso Corp | Vapor-compression refrigeration cycle |
JP2003127632A (en) * | 2001-10-29 | 2003-05-08 | Denso Corp | Air conditioner for vehicle |
DE60303056T2 (en) * | 2002-03-15 | 2006-07-20 | Calsonic Kansei Corp. | Vehicle air conditioning |
JP4047639B2 (en) * | 2002-06-25 | 2008-02-13 | 伸和コントロールズ株式会社 | Industrial air conditioner |
DE10346827B4 (en) | 2003-10-06 | 2017-07-13 | Mahle International Gmbh | Method for regulating the air temperature of a motor vehicle air conditioning system with auxiliary heating function |
JP4893475B2 (en) * | 2007-05-29 | 2012-03-07 | トヨタ自動車株式会社 | Air conditioning control device for hybrid vehicle |
JP2009149288A (en) * | 2007-11-28 | 2009-07-09 | Nissan Motor Co Ltd | Vehicular air conditioner |
JP5567784B2 (en) * | 2009-03-23 | 2014-08-06 | 大阪瓦斯株式会社 | Ventilated heating terminal device |
-
2010
- 2010-12-17 DE DE102010054957A patent/DE102010054957A1/en active Pending
-
2011
- 2011-12-16 US US13/328,396 patent/US20120318000A1/en not_active Abandoned
- 2011-12-16 JP JP2011275154A patent/JP5942288B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5404729A (en) * | 1991-12-27 | 1995-04-11 | Nissan Motor Co., Ltd. | Heat pump type air conditioner for automotive vehicle |
JPH11235919A (en) * | 1998-02-20 | 1999-08-31 | Calsonic Corp | Air conditioner for heat pump type automobile |
US6715540B2 (en) * | 2000-04-28 | 2004-04-06 | Denso Corporation | Air-conditioning apparatus for vehicle |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9738138B2 (en) | 2014-03-19 | 2017-08-22 | Audi Ag | Vehicle air conditioner with a refrigerant circuit |
US20200023709A1 (en) * | 2017-03-13 | 2020-01-23 | Audi Ag | Cooling system of a vehicle, comprising a coolant circuit which can be operated as a cooling circuit for an ac operation and as a heat pump circuit for a heating operation |
US11884134B2 (en) * | 2017-03-13 | 2024-01-30 | Audi Ag | Cooling system of a vehicle, comprising a coolant circuit which can be operated as a cooling circuit for an AC operation and as a heat pump circuit for a heating operation |
US20190011155A1 (en) * | 2017-07-10 | 2019-01-10 | Hanon Systems | Method for operating an air-conditioning system of a motor vehicle |
US11098935B2 (en) * | 2017-07-10 | 2021-08-24 | Hanon Systems | Method for operating an air-conditioning system of a motor vehicle |
US20200132204A1 (en) * | 2017-07-12 | 2020-04-30 | Audi Ag | Valve assembly for a refrigerant circuit |
Also Published As
Publication number | Publication date |
---|---|
DE102010054957A1 (en) | 2012-06-21 |
JP5942288B2 (en) | 2016-06-29 |
JP2012131480A (en) | 2012-07-12 |
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