CN114459138A - Air conditioner control method and device with autonomous heating blower - Google Patents

Air conditioner control method and device with autonomous heating blower Download PDF

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Publication number
CN114459138A
CN114459138A CN202210178399.7A CN202210178399A CN114459138A CN 114459138 A CN114459138 A CN 114459138A CN 202210178399 A CN202210178399 A CN 202210178399A CN 114459138 A CN114459138 A CN 114459138A
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air
vehicle
temperature
self
heating
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CN114459138B (en
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张驰
周从
王天英
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Zhiji Automobile Technology Co Ltd
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Zhiji Automobile Technology Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • F24F11/58—Remote control using Internet communication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention aims to provide a control method and equipment of an air conditioner with an autonomous heating blower. In the self-heating mode with the automatic heating blower, the position of the internal and external circulation air door is calculated based on the moisture content and the enthalpy of air inside the vehicle and the moisture content and the enthalpy of air outside the vehicle, and the self-loading value with the automatic heating blower is calculated based on the calculated position of the internal and external circulation air door and the difference value between the actual air outlet temperature of the air outlet and the target temperature so as to control the heating amount of the blower and ensure the heating requirement of a vehicle passenger compartment. The invention replaces the existing low-voltage electric heater and the non-heating blower by the self-heating blower, thereby saving the volume of the air-conditioning box while ensuring the comfort of the passenger compartment.

Description

Air conditioner control method and device with autonomous heating blower
Technical Field
The invention relates to an air conditioner control method and equipment with an autonomous heating blower.
Background
With the development of automotive technology, the comfort requirements of customers on passenger compartments are increasing. The heat pump system of the electric vehicle may have insufficient heating in winter. On the other hand, with the design and control optimization of the engine, the situation of insufficient water temperature can also occur in winter of part of the fuel oil vehicles, so that the heating capacity of the passenger compartment is insufficient.
Therefore, a low-voltage electric heater is added in the air conditioning box of some electric vehicles and fuel vehicles to supplement the lack of heating capacity of the whole vehicle in winter, so that the volume of the air conditioning box is increased, the air conditioning box needs to be redesigned, and the reusability is reduced.
Disclosure of Invention
The invention provides an air conditioner control method with an autonomous heating blower, wherein the method comprises the following steps:
an internal and external circulating air door is arranged on an internal air inlet duct and an external air inlet duct of an air conditioner of a vehicle, a temperature air door is arranged on the side of a heat exchanger of the vehicle, and an air blower with automatic heating is arranged in an air duct inside the air conditioner between the internal and external circulating air door and the temperature air door; the air enters an air duct inside the air conditioner from an air inlet duct inside the vehicle and/or an air inlet duct outside the vehicle through the adjustment of the position of the internal and external circulation air doors, and after the air is heated by the blower with the automatic heating function, when the position of the temperature air door is set to be a full-heat circulation position, the air is blocked by the temperature air door, is further heated by the heat exchanger, and is discharged into a passenger compartment inside the vehicle through the air outlet;
judging whether the actual outlet air temperature of the air outlet reaches the target outlet air temperature or not,
if the actual air outlet temperature of the air outlet does not reach the target air outlet temperature, the position of the temperature air door is locked to be a full thermal cycle position, and the following self-heating mode with the self-heating air blower is started:
calculating the positions of the internal and external circulating air doors based on the enthalpy value of the air outside the vehicle, the enthalpy value of the air inside the vehicle, the moisture content of the air inside the vehicle and the moisture content of the air outside the vehicle, and adjusting the internal and external circulating air doors to corresponding positions based on the calculated positions of the internal and external circulating air doors;
and calculating a self-loading value of the air blower with the automatic heating function based on the difference value between the actual air outlet temperature of the air outlet and the target temperature, and adjusting the self-loading value of the air blower with the automatic heating function based on the calculated self-loading value.
Further, in the above method, after determining whether the actual outlet air temperature of the air outlet reaches the target outlet air temperature, the method further includes:
and if the actual air outlet temperature of the air outlet reaches the target air outlet temperature, adjusting the self-loading value of the self-heating air blower to be 0.
Further, in the above method, determining whether the actual outlet air temperature of the air outlet reaches the target outlet air temperature includes:
if the vehicle is an electric vehicle, when the following conditions are simultaneously met and the first maintenance time meeting the following conditions is longer than the first calibration time, the actual air outlet temperature of the air outlet is judged not to reach the target air outlet temperature:
the position of the temperature air door is in a full heat cycle position;
the actual outlet air temperature of the air outlet is less than the target outlet air temperature-the calibrated outlet air temperature difference;
for a water tank heating system of the electric vehicle, the water temperature of the water tank heating system is less than the target water temperature-calibration water temperature difference; for the heating system of the condenser in the electric vehicle, the high pressure of the heating system of the condenser in the electric vehicle is less than the high pressure of a target system-a calibrated high pressure difference value;
the air output of the automatic heating blower is greater than the calibrated air output.
Further, in the above method, determining whether the actual outlet air temperature of the air outlet reaches the target outlet air temperature includes:
if the vehicle is a fuel vehicle, when the following conditions are simultaneously met and the first maintenance time meeting the following conditions is longer than the first calibration time, the actual air outlet temperature of the air outlet is judged not to reach the target air outlet temperature, namely the heating requirement of the fuel vehicle is considered to be insufficient:
the position of the temperature air door is in a full heat cycle position;
the actual outlet air temperature of the air outlet is less than the target outlet air temperature-the calibrated outlet air temperature difference;
the water temperature of a water tank heating system of the fuel vehicle is less than the target water temperature-calibration water temperature difference;
vehicle speed < calibration vehicle speed;
the air output of the automatic heating blower is greater than the calibrated air output.
Further, in the above method, calculating the position of the internal and external circulation damper based on the external air enthalpy, the internal air moisture content, and the external air moisture content includes:
calculating the moisture content of air outside the vehicle and the actual moisture content of air inside the vehicle;
calculating the air enthalpy value outside the vehicle and the air enthalpy value inside the vehicle;
when the moisture content of the air outside the vehicle is greater than the actual moisture content of the air inside the vehicle, and the enthalpy value of the air outside the vehicle is greater than the enthalpy value of the air inside the vehicle, the positions of the internal and external circulating air doors are not (the limit value of the moisture content of the inlet air-the actual moisture content of the air inside the vehicle)/(the moisture content of the air outside the vehicle-the actual moisture content of the air inside the vehicle); the maximum value of the positions of the internal and external circulation air doors is 1, and the full external circulation is represented; the minimum value of the positions of the internal and external circulation air doors is 0, which represents the full internal circulation;
when the moisture content of the air outside the vehicle is less than the actual moisture content of the air inside the vehicle, and the enthalpy value of the air outside the vehicle is less than the enthalpy value of the air inside the vehicle, the positions of the internal and external circulating air doors are not (the actual moisture content of the air inside the vehicle-the intake air moisture content limit value)/(the actual moisture content of the air inside the vehicle-the moisture content of the air outside the vehicle);
when the moisture content of air outside the vehicle is greater than the actual moisture content of the air inside the vehicle, and the enthalpy value of the air outside the vehicle is less than the enthalpy value of the air inside the vehicle, the internal and external circulation position =0, namely the full internal circulation;
when the moisture content of the air outside the vehicle is less than the actual moisture content of the air inside the vehicle, and the enthalpy value of the air outside the vehicle is greater than the enthalpy value of the air inside the vehicle, the internal and external circulation position =1, namely the full external circulation.
Further, in the above method, calculating the moisture content of the air outside the vehicle and the actual moisture content of the air inside the vehicle includes:
calculating the moisture content of the air outside the vehicle and the actual moisture content of the air inside the vehicle based on the following formula:
external air moisture content =662 × rh (oat) × pqb (oat)/(B-rh (oat) × pqb (oat)); wherein Pqb is saturated water vapor partial pressure, B is atmospheric pressure, RH is relative humidity, and OAT is ambient temperature outside the vehicle;
actual moisture content of in-vehicle air =662 × rh (ti) × pqb (ti)/(B-rh (ti) × pqb (ti)); wherein Ti is the temperature in the vehicle.
Further, in the above method, calculating the outside air enthalpy and the inside air enthalpy includes:
calculating the outside air enthalpy value and the inside air enthalpy value based on the following formulas:
calculating an outside air enthalpy =1.01 OAT + (2500 +1.84 OAT) dOA;
calculating the enthalpy value of air in the vehicle =1.01 × Ti + (2500 +1.84 × Ti) × di;
wherein OAT is the ambient temperature outside the vehicle, dOA is the moisture content of the air outside the vehicle, Ti is the temperature inside the vehicle, and di is the actual moisture content of the air inside the vehicle.
Further, in the above method, calculating a self-loading value with the self-heating blower based on a difference between an actual outlet air temperature of the outlet and a target temperature, includes:
respectively calculating a proportional operation value and an integral term based on the difference value between the actual outlet air temperature of the air outlet and the target temperature;
and taking the sum of the proportional operation value and the integral term as a self-loading value with the self-heating blower.
Further, in the above method, after calculating a self-loading value of the blower with self-heating based on a difference between an actual outlet air temperature of the outlet and a target temperature, and adjusting the self-loading value of the blower with self-heating based on the calculated self-loading value, the method further includes:
and judging whether to exit the self-heating mode with the self-heating blower.
Further, the method for judging whether to exit from the self-heating mode with the self-heating blower comprises the following steps:
if the vehicle is an electric vehicle, when the following conditions are simultaneously met and the second maintenance time meeting the following conditions is longer than the second calibration time, judging that the electric vehicle exits the self-heating mode with the self-heating blower, namely, considering that the heating requirement of the electric vehicle is enough:
for a water tank heating system of the electric vehicle, the water temperature of the water tank heating system is greater than the target water temperature; for the internal condenser heating system of the electric vehicle, the system high pressure of the internal condenser heating system is higher than the target system high pressure.
The air volume output of the blower with the automatic heating function is 0;
the self-load value with the self-heating blower is 0.
Further, the method for judging whether to exit from the self-heating mode with the self-heating blower comprises the following steps:
if the vehicle is a fuel vehicle, when the following conditions are simultaneously met and the second maintenance time which simultaneously meets the following conditions is longer than the second calibration time, judging that the fuel vehicle exits the self-heating mode with the self-heating blower, namely, considering that the heating requirement of the fuel vehicle is enough:
the water temperature of a water tank heating system of the fuel vehicle is greater than a target water temperature and a calibrated water temperature difference value;
the speed of the fuel vehicle is greater than the calibrated speed;
the air volume output of the blower with the automatic heating function is 0;
the self-load value with the self-heating blower is 0.
According to another aspect of the present invention there is also provided a computer readable medium having computer readable instructions stored thereon which are executable by a processor to implement the method of any one of the above.
According to another aspect of the present invention, there is also provided an apparatus for information processing at a network device, the apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform any of the methods described above.
The invention judges whether the blower with the automatic heating enters a non-heating mode or a self-heating mode based on whether the actual air outlet temperature of the air outlet reaches the target air outlet temperature. In the self-heating mode with the automatic heating blower, the position of the internal and external circulating air door is calculated based on the moisture content and enthalpy of air inside the vehicle and the moisture content and enthalpy of air outside the vehicle, the self-loading value with the automatic heating blower is calculated based on the calculated position of the internal and external circulating air door and the difference value between the actual air outlet temperature of the air outlet and the target temperature, so that the heating value of the blower is controlled, and the heating requirement of a passenger compartment of the vehicle is guaranteed. The invention replaces the existing low-voltage electric heater and the non-heating blower by the self-heating blower, thereby saving the volume of the air-conditioning box while ensuring the comfort of the passenger compartment.
Drawings
FIG. 1 is a schematic view of an inside and outside air damper in a half inside and half outside position and a temperature damper in a full heat cycle position in accordance with one embodiment of the present invention;
FIG. 2 is a schematic view of the inner and outer circulation dampers in a full inner circulation position and the temperature damper in a full heat circulation position in accordance with one embodiment of the present invention;
FIG. 3 is a schematic view of the inside and outside circulation dampers in a full outside circulation position and the temperature damper in a full heat circulation position in accordance with one embodiment of the present invention; FIG. 4 is a flow chart of the inner and outer circulation dampers in the half inner and half outer circulation positions and the temperature damper in the full heat circulation position in accordance with one embodiment of the present invention.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
In a typical configuration of the present application, the terminal, the device serving the network, and the trusted party each include one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include non-transitory computer readable media (transient media), such as modulated data signals and carrier waves.
As shown in fig. 1 and 4, the present invention provides a method for controlling an air conditioner with an autonomous heating blower, comprising: step S1 to step S4.
Step S1, arranging an internal and external circulating air door 2 on an internal air inlet duct 8 and an external air inlet duct 7 of an air conditioner of the vehicle, arranging a temperature air door 3 on the side of a heat exchanger 6 of the vehicle, and arranging an air blower 1 with automatic heating in an air-conditioner internal air duct 9 between the internal and external circulating air doors 2 and the temperature air door 3; through the adjustment of the position of the inner and outer circulating air doors 2, air enters an air-conditioning inner air duct 9 from an air inlet duct 8 in the vehicle and/or an air inlet duct 7 outside the vehicle, after the air is heated 1 by the blower with the automatic heating function, when the position of the temperature air door 3 is set to be a full-heat circulating position as shown in fig. 1-3, the air is further heated by the heat exchanger 6 due to the blocking of the temperature air door 3, and then is discharged into a passenger compartment in the vehicle through an air outlet 10;
here, when the position of the temperature damper is the full thermal cycle position as shown in fig. 1 to 3, after the air is heated by the blower with the automatic heating function, all the air can be further heated by the heat exchanger due to the blocking of the temperature damper, and then is discharged into the passenger compartment in the vehicle through the air outlet, so that the air is heated by the blower with the automatic heating function and the heat exchanger for two times;
specifically, as shown in fig. 1, the present invention may include a blower 1 with an autonomous heating function, an internal and external circulation damper 2, a temperature damper 3, an intelligent blower heating control module 4, an in-vehicle temperature and humidity sensor, an out-vehicle temperature and humidity sensor, and an evaporator temperature sensor.
As shown in fig. 1, an evaporator 5 is provided on the side of the fan with self-heating near the temperature damper, and is necessary for the air conditioning system and used for cooling.
The internal temperature and humidity sensor can be used for measuring the temperature Ti and the relative humidity RH in the vehicle;
the external temperature and humidity sensor can be used for measuring external environment temperature OAT and relative humidity RH;
an evaporator temperature sensor may be used to measure the evaporator temperature Te.
The intelligent blower heating control module 4 can be respectively connected with the blower 1 with the self-heating function, the internal and external circulation air doors 2, the temperature air door 3, the temperature and humidity sensor in the vehicle, the external temperature and humidity sensor and the evaporator temperature sensor.
For electric vehicles, the heat exchanger may be a warm air water tank or a condenser heating system; for oil-fired vehicles, the heat exchanger may be a warm air water tank;
the air inlet duct in the vehicle is communicated with a passenger compartment in the vehicle.
The air conditioner blower with the automatic heating function can actively increase the load for the motor of the air conditioner blower with the automatic heating function, and the efficiency of the motor of the air conditioner blower with the automatic heating function can be adjusted. The efficiency of the motor of the air conditioner blower capable of automatically heating is reduced, and the heating value of the motor of the air conditioner blower capable of automatically heating is increased under the condition that the air volume is not changed. In the air duct inside the air conditioner, the heat generated by the motor is dissipated into the air, and the heated air is further heated by the heat exchanger and then is blown into the passenger compartment.
Step S2, determining whether the actual outlet air temperature of the outlet air reaches the target outlet air temperature,
if the actual outlet air temperature of the outlet air does not reach the target outlet air temperature, the position of the temperature locking air door is the full heat circulation position as shown in figure 1, and the self-heating mode with the self-heating blower of the steps S3-S4 is started,
here, the position of the temperature damper is locked to the full thermal cycle position to prevent system fluctuations;
step S3, calculating the positions of the internal and external circulation air doors based on the enthalpy value of the air outside the vehicle, the enthalpy value of the air inside the vehicle, the moisture content of the air inside the vehicle and the moisture content of the air outside the vehicle, and adjusting the internal and external circulation air doors to the corresponding positions based on the calculated positions of the internal and external circulation air doors;
and step S4, calculating a self-loading value of the self-heating air blower based on the difference between the actual air outlet temperature of the air outlet and the target temperature, and adjusting the self-loading value of the self-heating air blower based on the calculated self-loading value.
Here, as shown in fig. 1, whether the actual air-out temperature of air outlet reaches target air-out temperature can be judged according to actual operating condition and passenger compartment demand to intelligent air-blower heating control module, if the actual air-out temperature of air outlet does not reach target air-out temperature, inside and outside circulation air door can be driven to intelligent air-blower heating control module, and the temperature air door and the area are from the loading of the air-blower that independently generates heat, guarantee passenger compartment travelling comfort, protect whole car safety traffic simultaneously.
The invention judges whether the blower with the automatic heating enters a non-heating mode or a self-heating mode based on whether the actual air outlet temperature of the air outlet reaches the target air outlet temperature. In the self-heating mode with the automatic heating blower, the position of the internal and external circulating air door is calculated based on the moisture content and enthalpy of air inside the vehicle and the moisture content and enthalpy of air outside the vehicle, the self-loading value with the automatic heating blower is calculated based on the calculated position of the internal and external circulating air door and the difference value between the actual air outlet temperature of the air outlet and the target temperature, so that the heating value of the blower is controlled, and the heating requirement of a passenger compartment of the vehicle is guaranteed. The invention replaces the existing low-voltage electric heater and the non-heating blower by the self-heating blower, thereby saving the volume of the air-conditioning box while ensuring the comfort of the passenger compartment.
In an embodiment of the air conditioner control method with an autonomous heating blower of the present invention, after determining whether the actual outlet air temperature of the air outlet reaches the target outlet air temperature in step S2, the method further includes:
and if the actual air outlet temperature of the air outlet reaches the target air outlet temperature, adjusting the self-loading value of the self-heating air blower to be 0.
Here, if the actual air outlet temperature of the air outlet reaches the target air outlet temperature, it is indicated that the heating requirement is currently met, the heating mode of the autonomous heating blower does not need to be started, and when the self-loading value of the autonomous heating blower is 0, the autonomous heating blower enters the non-heating mode.
In an embodiment of the air conditioner control method with an autonomous heating blower of the present invention, the step S2 of determining whether the actual outlet air temperature of the air outlet reaches the target outlet air temperature includes:
if the vehicle is the electric motor car, when satisfying following condition simultaneously to satisfy first maintenance duration of following condition simultaneously and be longer than first calibration time heatlocktime, judge that the actual air-out temperature of air outlet does not reach target air-out temperature, think that the electric motor car heating demand is not enough promptly:
the position of the temperature air door is in a full heat cycle position as shown in figures 1-3;
the actual outlet air temperature of the air outlet is less than the target outlet air temperature-the calibrated outlet air temperature difference;
for a water tank heating system of the electric vehicle, the water temperature of the water tank heating system is less than the target water temperature-calibration water temperature difference; for the heating system of the condenser in the electric vehicle, the high pressure of the heating system of the condenser in the electric vehicle is less than the high pressure of a target system-a calibrated high pressure difference value;
the air volume output of the self-heating blower is greater than the calibrated air volume output; the air output of the blower with the automatic heating function can be a percentage value.
Preferably, the above conditions may further include: the vehicle is in a normal driving mode.
Here, the present embodiment can be used to accurately judge whether the heating demand of the electric vehicle is sufficient.
In an embodiment of the air conditioner control method with an autonomous heating blower of the present invention, the step S2 of determining whether the actual outlet air temperature of the air outlet reaches the target outlet air temperature includes:
if the vehicle is a fuel vehicle, when the following conditions are simultaneously met and the first maintenance time meeting the following conditions is longer than the first calibration time, the actual air outlet temperature of the air outlet is judged not to reach the target air outlet temperature, namely the heating requirement of the fuel vehicle is considered to be insufficient:
the position of the temperature air door is in a full heat cycle position;
the actual outlet air temperature of the air outlet is less than the target outlet air temperature-the calibrated outlet air temperature difference;
the water temperature of a water tank heating system of the fuel vehicle is less than the target water temperature-calibration water temperature difference;
vehicle speed < calibration vehicle speed;
the air volume output of the self-heating blower is greater than the calibrated air volume output; the air output of the blower with the automatic heating function can be a percentage value.
Preferably, the above conditions may further include: the vehicle is in a normal driving mode.
Here, the embodiment can be used for accurately judging whether the heating requirement of the fuel vehicle is enough.
In an embodiment of the method for controlling an air conditioner with an autonomous heating blower according to the present invention, the step S3 of calculating the position of the internal and external circulation damper based on the outside air enthalpy, the inside air moisture content, and the outside air moisture content includes:
step S30, calculating the moisture content of the air outside the vehicle and the actual moisture content of the air inside the vehicle;
step S31, calculating the outside air enthalpy and the inside air enthalpy;
step S32, when the moisture content of the air outside the vehicle is greater than the actual moisture content of the air inside the vehicle, and the enthalpy value of the air outside the vehicle is greater than the enthalpy value of the air inside the vehicle, the positions of the internal and external circulation air doors are = (inlet air moisture content limit value-actual moisture content of the air inside the vehicle)/(moisture content of the air outside the vehicle-actual moisture content of the air inside the vehicle); the maximum value of the positions of the internal and external circulation air doors is 1, and the full external circulation is represented; the minimum value of the positions of the internal and external circulation air doors is 0, which represents the full internal circulation;
here, the position of the inside and outside circulation damper as shown in fig. 3 is the full outside circulation; the position of the inner and outer circulation dampers as shown in fig. 2 is full inner circulation;
step S33, when the moisture content of the air outside the vehicle is less than the actual moisture content of the air inside the vehicle, and the enthalpy value of the air outside the vehicle is less than the enthalpy value of the air inside the vehicle, the position of the internal and external circulation air door is = (the actual moisture content of the air inside the vehicle-the intake air moisture content limit value)/(the actual moisture content of the air inside the vehicle-the moisture content of the air outside the vehicle); position = maximum of 1 for the inner and outer circulation dampers, indicating full outer circulation; position = minimum of inner and outer circulation dampers is 0, indicating full inner circulation;
step S34, when the moisture content of the air outside the vehicle is greater than the actual moisture content of the air inside the vehicle and the enthalpy value of the air outside the vehicle is less than the enthalpy value of the air inside the vehicle, the internal and external circulation position =0, namely the internal circulation is full;
step S35, when the moisture content of the air outside the vehicle is less than the actual moisture content of the air inside the vehicle, and the enthalpy value of the air outside the vehicle is greater than the enthalpy value of the air inside the vehicle, the internal and external circulation position =1, that is, the full external circulation.
Here, this embodiment can be used for calculating the position of inside and outside circulation air door, realizes the high-efficient heating in the car.
In an embodiment of the air conditioner control method with an autonomous heating blower according to the present invention, the step S30 of calculating the moisture content of the air outside the vehicle and the actual moisture content of the air inside the vehicle includes:
calculating the moisture content of the air outside the vehicle and the actual moisture content of the air inside the vehicle based on the following formula:
external air moisture content dOA =662 × rh (oat) × pqb (oat)/(B-rh (oat) × pqb (oat)); wherein Pqb is saturated water vapor partial pressure, B is atmospheric pressure, RH is relative humidity, and OAT is ambient temperature outside the vehicle;
actual indoor air moisture content di =662 × rh (ti) × pqb (ti)/(B-rh (ti) × pqb (ti)); wherein Ti is the temperature in the vehicle.
In an embodiment of the method for controlling an air conditioner with an autonomous heating blower according to the present invention, the step S31 of calculating an outside air enthalpy value and an inside air enthalpy value includes:
calculating the outside air enthalpy value and the inside air enthalpy value based on the following formulas:
calculating an outside air enthalpy =1.01 OAT + (2500 +1.84 OAT) dOA;
calculating the enthalpy value of air in the vehicle =1.01 × Ti + (2500 +1.84 × Ti) × di;
wherein OAT is the ambient temperature outside the vehicle, dOA is the moisture content of the air outside the vehicle, Ti is the temperature inside the vehicle, and di is the actual moisture content of the air inside the vehicle.
In an embodiment of the method for controlling an air conditioner with an autonomous heating blower, in step S4, the calculating a self-loading value with the autonomous heating blower based on a difference between an actual outlet air temperature of the outlet and a target temperature includes:
step S41, respectively calculating a proportional operation value and an integral term based on the difference between the actual air outlet temperature of the air outlet and the target temperature;
in step S42, the sum of the proportional operation value and the integral term is used as a self-load value with the self-heating blower.
Here, the self-load value of the blower with self-heating may be calculated by a PI control algorithm.
And the difference value between the actual air outlet temperature of the air outlet and the target temperature is the air outlet temperature deviation.
And if the vehicle has target temperatures of a plurality of subareas, calculating the air outlet temperature deviation by adopting the temperature zone corresponding to the maximum value of the target temperatures.
And (4) performing proportional operation P = air outlet temperature deviation lookup table.
Integral operation I + = air-out temperature deviation lookup table
When the following conditions are met, the integral term of the integral operation I needs to be cleared, and the integral operation I does not enter the integral operation: 1) the air volume output of the blower with the automatic heating function is 0;
2) the difference value change between the current target temperature and the previous target temperature is larger than a calibration value, and the current integral is smaller than 0;
3) the difference value change between the previous target temperature and the current target temperature is larger than a calibration value, and the current integral is larger than 0.
The integration operation is not continued when: previous PWM =1 and air outlet temperature deviation < = 0; previous PWM =0 and outlet air temperature deviation > = 0.
The self-loading value PWM with the self-heating blower is the sum of the proportional operation value and the integral term, and the range is (0, 1).
When the required PWM value is 0, the self-loading is 0, and when the required PWM value is 1, the self-loading is maximum. And carrying out interpolation in the middle.
In an embodiment of the air conditioner control method with an autonomous heating blower according to the present invention, in step S4, after calculating a self-loading value with the autonomous heating blower based on a difference between an actual outlet air temperature of the outlet and a target temperature, and adjusting the self-loading value with the autonomous heating blower based on the calculated self-loading value, the method further includes:
step S5, it is determined whether or not the self-heating mode with the self-heating blower is exited.
For example, when the ambient temperature is-10 ℃, the ambient humidity is 30%. When the fuel oil vehicle idles for a long time, the water temperature of the warm air water tank is not enough to reach the water temperature required by the passenger compartment. At this point, the system enters a self-heating mode from the self-heating blower. The intelligent blower heating control module automatically adjusts the self-heating load of the self-heating blower according to the requirement, and the comfort of the passenger compartment is met. When the fuel vehicle finishes idling, the water temperature of the warm air water tank rises, and the self-heating mode of the self-heating blower is automatically exited.
Here, with the present embodiment, it is possible to ensure that the self-heating mode with the self-heating blower is exited at a reliable timing after the self-heating mode is started.
In an embodiment of the method for controlling an air conditioner with an autonomous heating blower according to the present invention, the step S5 of determining whether to exit the self-heating mode with the autonomous heating blower includes:
if the vehicle is an electric vehicle, when the following conditions are simultaneously met and the second maintenance time meeting the following conditions is longer than the second calibration time, judging that the electric vehicle exits the self-heating mode with the self-heating blower, namely, considering that the heating requirement of the electric vehicle is enough:
for a water tank heating system of the electric vehicle, the water temperature of the water tank heating system is greater than the target water temperature; for the internal condenser heating system of the electric vehicle, the system high pressure of the internal condenser heating system is higher than the target system high pressure.
The air volume output of the blower with the automatic heating function is 0;
the self-loading value PWM with the self-heating blower is 0.
Here, the output of the self-heating blower is the output of the air volume, and the intelligent blower heating control module may transmit the target air volume or the target rotational speed to the self-heating blower, and the self-heating blower performs the self-control based on the received target air volume or the target rotational speed. The air output with the automatic heating blower and the self-loading value with the automatic heating blower are two independent control objects, the former is used for ensuring the air volume, and the latter is used for ensuring the heat.
Preferably, the above conditions may further include: the vehicle is in a normal driving mode.
Here, the present embodiment can reliably determine whether the electric vehicle needs to exit the self-heating mode with the self-heating blower.
In an embodiment of the method for controlling an air conditioner with an autonomous heating blower according to the present invention, the step S5 of determining whether to exit the self-heating mode with the autonomous heating blower includes:
if the vehicle is a fuel vehicle, when the following conditions are simultaneously met and the second maintenance time which simultaneously meets the following conditions is longer than the second calibration time, judging that the fuel vehicle exits from a self-heating mode with a self-heating blower, namely, considering that the heating requirement of the fuel vehicle is enough:
the water temperature of a water tank heating system of the fuel vehicle is greater than a target water temperature and a calibrated water temperature difference value;
the speed of the fuel vehicle is greater than the calibrated speed;
the air volume output of the blower with the automatic heating function is 0;
the self-loading value PWM with the self-heating blower is 0.
Preferably, the above conditions may further include: the vehicle is in a normal driving mode.
Here, the embodiment can reliably judge whether the fuel vehicle needs to exit the self-heating mode with the self-heating blower.
Wherein, each calibration quantity can be adjusted according to the actual vehicle type.
According to another aspect of the present invention, there is also provided a computer readable medium having computer readable instructions stored thereon, the computer readable instructions being executable by a processor to implement the method of any one of the above.
According to another aspect of the present invention, there is also provided an apparatus for information processing at a network device, the apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform any of the methods described above.
The details of each device embodiment of the present invention may specifically refer to the corresponding parts of each method embodiment, and are not described herein again.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
It should be noted that the present invention may be implemented in software and/or in a combination of software and hardware, for example, as an Application Specific Integrated Circuit (ASIC), a general purpose computer or any other similar hardware device. In one embodiment, the software program of the present invention may be executed by a processor to implement the steps or functions described above. Also, the software programs (including associated data structures) of the present invention can be stored in a computer readable recording medium, such as RAM memory, magnetic or optical drive or diskette and the like. Further, some of the steps or functions of the present invention may be implemented in hardware, for example, as circuitry that cooperates with the processor to perform various steps or functions.
In addition, some of the present invention can be applied as a computer program product, such as computer program instructions, which when executed by a computer, can invoke or provide the method and/or technical solution according to the present invention through the operation of the computer. Program instructions which invoke the methods of the present invention may be stored on a fixed or removable recording medium and/or transmitted via a data stream on a broadcast or other signal-bearing medium and/or stored within a working memory of a computer device operating in accordance with the program instructions. An embodiment according to the invention herein comprises an apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform a method and/or solution according to embodiments of the invention as described above.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the apparatus claims may also be implemented by one unit or means in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.

Claims (13)

1. A control method of an air conditioner with an autonomous heating blower is disclosed, wherein the method comprises the following steps:
an internal and external circulating air door is arranged on an internal air inlet duct and an external air inlet duct of an air conditioner of a vehicle, a temperature air door is arranged on the side of a heat exchanger of the vehicle, and an air blower with automatic heating is arranged in an air duct inside the air conditioner between the internal and external circulating air door and the temperature air door; the air enters an air duct inside the air conditioner from an air inlet duct inside the vehicle and/or an air inlet duct outside the vehicle through the adjustment of the position of the internal and external circulation air doors, and after the air is heated by the blower with the automatic heating function, when the position of the temperature air door is set to be a full-heat circulation position, the air is blocked by the temperature air door, is further heated by the heat exchanger, and is discharged into a passenger compartment inside the vehicle through the air outlet;
judging whether the actual outlet air temperature of the air outlet reaches the target outlet air temperature or not,
if the actual air outlet temperature of the air outlet does not reach the target air outlet temperature, the position of the temperature air door is locked to be a full thermal cycle position, and the following self-heating mode with the self-heating air blower is started:
calculating the positions of the internal and external circulation air doors based on the external air enthalpy value, the internal air moisture content and the external air moisture content, and adjusting the internal and external circulation air doors to corresponding positions based on the calculated positions of the internal and external circulation air doors;
and calculating a self-loading value of the air blower with the automatic heating function based on the difference value between the actual air outlet temperature of the air outlet and the target temperature, and adjusting the self-loading value of the air blower with the automatic heating function based on the calculated self-loading value.
2. The method of claim 1, wherein after determining whether the actual outlet air temperature of the outlet air reaches the target outlet air temperature, the method further comprises:
and if the actual air outlet temperature of the air outlet reaches the target air outlet temperature, adjusting the self-loading value of the self-heating air blower to be 0.
3. The method of claim 1, wherein determining whether the actual outlet air temperature of the outlet air reaches the target outlet air temperature comprises:
if the vehicle is an electric vehicle, when the following conditions are simultaneously met and the first maintenance time meeting the following conditions is longer than the first calibration time, the actual air outlet temperature of the air outlet is judged not to reach the target air outlet temperature:
the position of the temperature air door is in a full heat cycle position;
the actual outlet air temperature of the air outlet is less than the target outlet air temperature-the calibrated outlet air temperature difference;
for a water tank heating system of the electric vehicle, the water temperature of the water tank heating system is less than the target water temperature-calibration water temperature difference; for the heating system of the internal condenser of the electric vehicle, the high pressure of the heating system of the internal condenser is less than the target system high pressure-calibration high pressure difference value;
the air output of the automatic heating blower is greater than the calibrated air output.
4. The method of claim 1, wherein determining whether the actual outlet air temperature of the outlet air reaches the target outlet air temperature comprises:
if the vehicle is a fuel vehicle, when the following conditions are simultaneously met and the first maintenance time meeting the following conditions is longer than the first calibration time, the actual air outlet temperature of the air outlet is judged not to reach the target air outlet temperature, namely the heating requirement of the fuel vehicle is considered to be insufficient:
the position of the temperature air door is in a full heat cycle position;
the actual outlet air temperature of the air outlet is less than the target outlet air temperature-the calibrated outlet air temperature difference;
the water temperature of a water tank heating system of the fuel vehicle is less than the target water temperature-calibration water temperature difference;
vehicle speed < calibration vehicle speed;
the air output of the automatic heating blower is greater than the calibrated air output.
5. The method of claim 1, wherein calculating the position of the inner and outer circulation dampers based on the outside air enthalpy, the inside air moisture content, and the outside air moisture content comprises:
calculating the moisture content of air outside the vehicle and the actual moisture content of air inside the vehicle;
calculating the air enthalpy value outside the vehicle and the air enthalpy value inside the vehicle;
when the moisture content of the air outside the vehicle is greater than the actual moisture content of the air inside the vehicle, and the enthalpy value of the air outside the vehicle is greater than the enthalpy value of the air inside the vehicle, the positions of the internal and external circulating air doors are not (the limit value of the moisture content of the inlet air-the actual moisture content of the air inside the vehicle)/(the moisture content of the air outside the vehicle-the actual moisture content of the air inside the vehicle); the maximum value of the positions of the internal and external circulation air doors is 1, and the full external circulation is represented; the minimum value of the positions of the internal and external circulation air doors is 0, which represents the full internal circulation;
when the moisture content of the air outside the vehicle is less than the actual moisture content of the air inside the vehicle, and the enthalpy value of the air outside the vehicle is less than the enthalpy value of the air inside the vehicle, the positions of the internal and external circulating air doors are not (the actual moisture content of the air inside the vehicle-the intake air moisture content limit value)/(the actual moisture content of the air inside the vehicle-the moisture content of the air outside the vehicle);
when the moisture content of air outside the vehicle is greater than the actual moisture content of the air inside the vehicle, and the enthalpy value of the air outside the vehicle is less than the enthalpy value of the air inside the vehicle, the internal and external circulation positions = 0;
when the outside air moisture content < the actual moisture content of the inside air, and the outside air enthalpy > the inside air enthalpy, the inside and outside circulation position =1.
6. The method of claim 5, wherein calculating the outside air moisture content and the inside air actual moisture content comprises:
calculating the moisture content of the air outside the vehicle and the actual moisture content of the air inside the vehicle based on the following formula:
external air moisture content =662 × rh (oat) × pqb (oat)/(B-rh (oat) × pqb (oat)); wherein Pqb is saturated water vapor partial pressure, B is atmospheric pressure, RH is relative humidity, and OAT is ambient temperature outside the vehicle;
actual moisture content of in-vehicle air =662 × rh (ti) × pqb (ti)/(B-rh (ti) × pqb (ti)); wherein Ti is the temperature in the vehicle.
7. The method of claim 6, wherein calculating the outside air enthalpy and the inside air enthalpy comprises:
calculating the outside air enthalpy value and the inside air enthalpy value based on the following formulas:
calculating an outside air enthalpy =1.01 OAT + (2500 +1.84 OAT) dOA;
calculating the enthalpy value of air in the vehicle =1.01 × Ti + (2500 +1.84 × Ti) × di;
wherein OAT is the ambient temperature outside the vehicle, dOA is the moisture content of the air outside the vehicle, Ti is the temperature inside the vehicle, and di is the actual moisture content of the air inside the vehicle.
8. The method of claim 1, wherein calculating a self-loading value with an autonomous heat-generating blower based on a difference between an actual outlet air temperature of the outlet air and a target temperature comprises:
respectively calculating a proportional operation value and an integral term based on the difference value between the actual outlet air temperature of the air outlet and the target temperature;
and taking the sum of the proportional operation value and the integral term as a self-loading value with the self-heating blower.
9. The method of claim 1, wherein calculating a self-loading value of the blower with self-heating based on a difference between an actual outlet air temperature of the outlet and a target temperature, and adjusting the self-loading value of the blower with self-heating based on the calculated self-loading value further comprises:
and judging whether to exit the self-heating mode with the self-heating blower.
10. The method of claim 9, wherein determining whether to exit the self-heating mode with the self-heating blower comprises:
if the vehicle is an electric vehicle, when the following conditions are simultaneously met and the second maintenance time meeting the following conditions is longer than the second calibration time, judging that the electric vehicle exits the self-heating mode with the self-heating blower, namely, considering that the heating requirement of the electric vehicle is enough:
for a water tank heating system of the electric vehicle, the water temperature of the water tank heating system is greater than the target water temperature; for the internal condenser heating system of the electric vehicle, the system high pressure of the internal condenser heating system is higher than the target system high pressure;
the air volume output of the blower with the automatic heating function is 0;
the self-load value with the self-heating blower is 0.
11. The method of claim 9, wherein determining whether to exit the self-heating mode with the self-heating blower comprises:
if the vehicle is a fuel vehicle, when the following conditions are simultaneously met and the second maintenance time which simultaneously meets the following conditions is longer than the second calibration time, judging that the fuel vehicle exits the self-heating mode with the self-heating blower, namely, considering that the heating requirement of the fuel vehicle is enough:
the water temperature of a water tank heating system of the fuel vehicle is greater than a target water temperature and a calibrated water temperature difference value;
the speed of the fuel vehicle is greater than the calibrated speed;
the air volume output of the blower with the automatic heating function is 0;
the self-load value with the self-heating blower is 0.
12. A computer readable medium having computer readable instructions stored thereon which are executable by a processor to implement the method of any one of claims 1 to 11.
13. An apparatus for information processing at a network device, the apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform the method of any of claims 1 to 11.
CN202210178399.7A 2022-02-25 2022-02-25 Air conditioner control method and equipment with autonomous heating blower Active CN114459138B (en)

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