EP3765318A1 - Verfahren und system zur steuerung eines thermischen regelsystems eines kraftfahrzeugs - Google Patents
Verfahren und system zur steuerung eines thermischen regelsystems eines kraftfahrzeugsInfo
- Publication number
- EP3765318A1 EP3765318A1 EP19712717.8A EP19712717A EP3765318A1 EP 3765318 A1 EP3765318 A1 EP 3765318A1 EP 19712717 A EP19712717 A EP 19712717A EP 3765318 A1 EP3765318 A1 EP 3765318A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- evaporator
- setpoint
- module
- vehicle
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- B60H1/00764—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 the input being a vehicle driving condition, e.g. speed
-
- 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
- B60H1/00735—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
- B60H1/00807—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 the input being a specific way of measuring or calculating an air or coolant temperature
-
- 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
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
- B60H1/3208—Vehicle drive related control of the compressor drive means, e.g. for fuel saving purposes
-
- 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
- B60H1/32—Cooling devices
- B60H2001/3236—Cooling devices information from a variable is obtained
- B60H2001/3255—Cooling devices information from a variable is obtained related to temperature
- B60H2001/3261—Cooling devices information from a variable is obtained related to temperature of the air at an evaporating unit
-
- 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
- B60H1/32—Cooling devices
- B60H2001/3236—Cooling devices information from a variable is obtained
- B60H2001/3255—Cooling devices information from a variable is obtained related to temperature
- B60H2001/3263—Cooling devices information from a variable is obtained related to temperature of the refrigerant at an evaporating unit
-
- 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
- B60H1/32—Cooling devices
- B60H2001/3269—Cooling devices output of a control signal
- B60H2001/327—Cooling devices output of a control signal related to a compressing unit
Definitions
- the present invention relates to the field of air conditioning systems capable of regulating the temperature in a motor vehicle, in particular with thermal or hybrid propulsion.
- the invention relates to air conditioning systems comprising an externally controlled compressor.
- an air conditioning system or cold loop includes a compressor, a condenser, a pressure reducer and a heat exchanger or evaporator and for taking calories from the air used to cool an environment.
- the temperature of the evaporator is generally regulated according to a thermal need, for example, according to a control command of the driver and an instantaneous value of the evaporator temperature measured by a temperature sensor.
- Temperature control systems of the evaporator comprising a regulator valve integrated in the compressor in order to control the displacement of the compressor and thus its flow rate.
- the control valve is controlled to respond to changes in the engine to ensure a nearly constant flow of refrigerant and therefore a constant temperature in the passenger compartment of the motor vehicle.
- the object of the present invention is a method for controlling a thermal regulation system of a motor vehicle, said thermal regulation system comprising a set of pipes forming a so-called refrigerant loop containing a refrigerant and connecting at least one compressor , a condenser, an expansion member and an evaporator.
- the temperature of the evaporator is regulated according to a temperature control setpoint for cooling the passenger compartment of the vehicle and an average value of the temperature of the evaporator over a determined period of time, for example equal to 30 seconds.
- a command setpoint obtained for example from a request from the driver of the vehicle, is recovered in order to cool the passenger compartment of the vehicle, an average value of the temperature of the vehicle is calculated.
- evaporator over a predetermined period, for example equal to 30 seconds, a difference is calculated between the temperature set point and said calculated average value of the evaporator temperature and said calculated difference is corrected by calculating a corrected temperature setpoint, for example by applying an integral proportional regulator.
- the vehicle can be checked whether the vehicle is in a deceleration phase, obtained for example, when the vehicle speed drops or when a zero torque setpoint is requested, and when the vehicle is in the deceleration phase, it is transmitted to a control module the temperature of the evaporator a first temperature setpoint, for example equal to 2 ° C.
- the temperature regulation module is sent the corrected temperature setpoint.
- the temperature control module of the evaporator calculates a second difference between said temperature setpoint transmitted, and the instantaneous measured value of the evaporator temperature, by for example, by a temperature sensor and said second calculated difference is corrected to deliver to the compressor a final control flow control acting for example on the compressor capacity or more generally on the flow of refrigerant, for example by applying a proportional integral regulator .
- the invention relates to a control system of a thermal regulation system capable of cooling the passenger compartment of a motor vehicle, said thermal regulation system comprising a set of pipes forming a so-called refrigerant loop containing a refrigerant and connecting at least one compressor, a condenser, an expansion member and an evaporator.
- the system comprises a module for acquiring a temperature setpoint and a module for regulating the temperature of the evaporator as a function of an average value of the temperature of the evaporator established over a determined period of time.
- the temperature control module of the evaporator comprises a module for calculating an average value of the evaporator temperature over a determined period of time, for example equal to 30 seconds, a comparator configured to calculate a first difference between the temperature set point and said calculated average value of the evaporator temperature and a correction module of said calculated difference configured to deliver a corrected temperature setpoint.
- the correction module is, for example, an integral proportional regulator.
- the system may include a verification module configured to check whether the vehicle is in the deceleration phase, obtained, for example, when the vehicle speed drops or when a zero torque instruction is requested.
- the control system transmits to an evaporator temperature control module a first temperature setpoint, for example equal to 2 ° C, and when the vehicle is not in phase deceleration, the control system transmits to the temperature control module of the evaporator the corrected temperature setpoint.
- the temperature control module of the evaporator comprises a module for calculating a control acting for example on the displacement of the compressor or more generally on the refrigerant flow rate as a function of the setpoint transmitted to this module and an instantaneous value. measured, for example, by a temperature sensor, the temperature of the evaporator.
- the module for calculating a control acting on the displacement of the compressor comprises a second comparator configured to calculate a difference between the temperature setpoint transmitted to this module and the instantaneous value of the evaporator temperature and a second module. correction of said calculated difference configured to deliver a command acting for example on the compressor capacity or more generally on the refrigerant flow rate.
- the second correction module is, for example an integral proportional regulator.
- the invention relates to a motor vehicle with thermal or hybrid propulsion comprising a thermal regulation system comprising a set of pipes forming a so-called refrigerant loop containing a refrigerant and connecting at least one compressor, a condenser, an organ and an evaporator, and a control system of the thermal control system as described above.
- FIG. 1 schematically shows a thermal control system of a motor vehicle according to the invention
- FIG. 2 shows in detail a control system of the thermal regulation system of FIG. 1;
- FIG. 3 illustrates a flowchart of an implementation mode of a control method of the thermal regulation system of FIG. 1.
- FIG. 1 shows a thermal regulation system or air conditioning system 10 intended to be integrated in a motor vehicle with thermal or hybrid propulsion (not shown).
- the air conditioning system 10 is able to cool the passenger compartment H of the motor vehicle and to be integrated in a heating and / or air conditioning system, called "HVAC" (not shown) comprising a motor fan 1 1 to blow the air to inside the cockpit H.
- HVAC heating and / or air conditioning system
- the air conditioning system 10 comprises a set of pipes 12 forming a so-called refrigerant loop containing a refrigerant or refrigerant (not shown) and connecting a compressor 13 which compresses said coolant, a condenser 14 located, for example, in front of the vehicle, an expansion member 15 and an evaporator 16 wherein the fluid vaporizes by absorbing calories.
- the air conditioning system comprises a compressor and an evaporator.
- the air conditioning system is a reversible heat pump system for cooling or heating the passenger compartment of the vehicle.
- the temperature of the evaporator 16 is controlled by a control system 20 for regulating said temperature as a function of a control setpoint Tcons coming for example from a request from the driver of the vehicle to cool the passenger compartment H of the vehicle.
- the control system 20 comprises a module 21 for acquiring a temperature setpoint Tcons, and a module 22 for regulating the temperature of the evaporator 16 as a function of an average value Tmoy of the temperature of the evaporator 16 established over a fixed period of time t.
- the temperature control module 22 of the evaporator comprises a module 23 for calculating an average value Tmoy of the temperature of the evaporator 16 over a determined period of time t, for example equal to 30 seconds.
- comparator 24 configured to calculate a difference DT 1 between the temperature setpoint Tcons and said calculated average value Tmoy of the temperature of the evaporator and a correction module 25 of said calculated difference DT 1 configured to deliver a corrected temperature setpoint Tcons corr .
- the correction module 25 is, for example, an integral proportional regulator.
- the control system 20 further comprises a verification module 26 for checking whether the vehicle is in the deceleration phase, obtained, for example, when the vehicle speed is falling or when a zero torque instruction is requested.
- the control system 20 transmits to a module 27 for calculating a command T2f acting for example on the displacement of the compressor or more generally on the flow rate of the refrigerant, a first temperature set T lf for example equal to 2 ° C.
- the module 27 for calculating the command T2f acting for example on the displacement of the compressor or more generally on the flow rate of the refrigerant comprises a second comparator 28 configured to calculate a difference DT2 between a second temperature setpoint T2 (cons_corr) transmitted to the module 27. , ie either the setpoint T lf or the setpoint Tcons corr and an instantaneous value Tmes of the temperature of the evaporator 16 and a second module 29 for the correction of said calculated difference configured to deliver to the compressor a command T2f acting for example, the displacement of the compressor or, more generally, the flow rate of the refrigerant.
- the second correction module 29 is, for example an integral proportional regulator.
- FIG. 3 illustrates a flowchart of an embodiment of a method of operation or control of the thermal regulation system 10 of FIG. 1.
- a control setpoint Tcons obtained from, for example, a request from the driver of the vehicle is recovered to cool the passenger compartment H of the vehicle.
- a second step 32 an average value Tmoy of the temperature of the evaporator 16 is calculated over a determined duration t, for example equal to 30 seconds, and then, in step 33, a difference DT 1 is calculated between the temperature setpoint Tcons and said calculated average value Tmoy of the temperature of the evaporator and said difference DT 1 calculated in step 34 is corrected by calculating a corrected temperature setpoint Tcons corr, for example by applying a proportional integral regulator .
- the temperature of the evaporator is regulated according to a temperature control set point and an average of the measured evaporator temperature.
- step 35 it is checked whether the vehicle is in the deceleration phase, obtained, for example, when the vehicle speed drops or when a zero torque reference is requested.
- a first temperature reference T lf for example equal to 2 ° C, is transmitted.
- a second difference DT2 is calculated in step 37 between the second setpoint of T2 temperature (cons_corr) transmitted to the module 27, that is to say the setpoint T lf or setpoint Tcons corr and said instantaneous value Tmes of the evaporator temperature and is corrected, in step 37 said difference calculated to deliver the compressor or the compressor control module a compressor control control acting on the refrigerant flow T2f, for example by applying a proportional integral controller.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1852271A FR3078923B1 (fr) | 2018-03-16 | 2018-03-16 | Procede et systeme de commande d'un systeme de regulation thermique d'un vehicule automobile |
PCT/EP2019/056505 WO2019175358A1 (fr) | 2018-03-16 | 2019-03-14 | Procédé et système de commande d'un système de régulation thermique d'un véhicule automobile |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3765318A1 true EP3765318A1 (de) | 2021-01-20 |
Family
ID=63014645
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19712717.8A Withdrawn EP3765318A1 (de) | 2018-03-16 | 2019-03-14 | Verfahren und system zur steuerung eines thermischen regelsystems eines kraftfahrzeugs |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3765318A1 (de) |
CN (1) | CN111902301A (de) |
FR (1) | FR3078923B1 (de) |
WO (1) | WO2019175358A1 (de) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4284785B2 (ja) * | 1999-10-13 | 2009-06-24 | 株式会社デンソー | 車両用空調装置 |
JP4062954B2 (ja) * | 2002-04-16 | 2008-03-19 | 株式会社デンソー | 車両用空調装置 |
JP4417064B2 (ja) * | 2003-09-30 | 2010-02-17 | 株式会社デンソー | 車両用空調装置 |
JP2006044408A (ja) * | 2004-08-03 | 2006-02-16 | Sanden Corp | 車両用空調装置 |
US7165411B2 (en) * | 2004-09-03 | 2007-01-23 | Nissan Technical Center North America, Inc. | Control logic for HVAC heat management |
JP2007106260A (ja) * | 2005-10-13 | 2007-04-26 | Denso Corp | 車両用空調装置 |
US8302417B2 (en) * | 2008-04-23 | 2012-11-06 | GM Global Technology Operations LLC | Air conditioning system with cold thermal storage and evaporator temperature control |
FR2974761B1 (fr) * | 2011-05-05 | 2013-10-25 | Renault Sa | Procede de regulation multizone de la temperature interieure de l'habitacle d'un vehicule automobile et systeme de climatisation associe. |
FR3040921B1 (fr) * | 2015-09-15 | 2018-07-27 | Valeo Systemes Thermiques | Procede de regulation d'un systeme de climatisation d'un vehicule automobile |
-
2018
- 2018-03-16 FR FR1852271A patent/FR3078923B1/fr active Active
-
2019
- 2019-03-14 EP EP19712717.8A patent/EP3765318A1/de not_active Withdrawn
- 2019-03-14 WO PCT/EP2019/056505 patent/WO2019175358A1/fr active Application Filing
- 2019-03-14 CN CN201980022242.1A patent/CN111902301A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
RU2020133903A (ru) | 2022-04-18 |
FR3078923B1 (fr) | 2023-01-13 |
FR3078923A1 (fr) | 2019-09-20 |
WO2019175358A1 (fr) | 2019-09-19 |
RU2020133903A3 (de) | 2022-04-18 |
CN111902301A (zh) | 2020-11-06 |
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