CN115416443A - Electric automobile remote air conditioner comfort and energy-saving control system and control method - Google Patents
Electric automobile remote air conditioner comfort and energy-saving control system and control method Download PDFInfo
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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
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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
- B60H1/00357—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
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- B60H1/00—Heating, cooling or ventilating [HVAC] devices
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- 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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Abstract
The invention provides a comfortable and energy-saving control system and a control method for a remote air conditioner of an electric automobile, wherein a mobile terminal applies an APP to send out a remote air conditioner combination instruction; after receiving the air conditioner combination instruction, the vehicle-mounted remote data terminal sends a vehicle starting instruction to the vehicle control unit; the vehicle control unit determines whether vehicle starting and air conditioner starting conditions are met, sends an air conditioner combination instruction to the air conditioner controller, and calculates to obtain an air conditioner running state by combining the set temperature and starting time of an air conditioner of a user, the ambient temperature, illumination intensity and the temperature in the vehicle of the vehicle; on the basis of meeting the noise requirement, the temperature in the vehicle is accurately regulated in the whole air-conditioning refrigeration process, the temperature in the vehicle is consistent with the set temperature at the moment when a user expects to enter the vehicle, the phenomenon that the temperature in the vehicle reaches the set temperature too early to cause overlarge temperature difference between the temperature in the vehicle and the ambient temperature is avoided, and in order to keep the set temperature, an air-conditioning refrigeration system needs to continuously work in a large working load state to cause energy waste.
Description
Technical Field
The invention belongs to the technical field of automobile design and development, and particularly relates to a comfortable and energy-saving control system and a control method for a remote air conditioner of an electric automobile.
Background
With the development of the automobile industry, the level of intelligence of automobiles is higher and higher. At present, more and more vehicles with remote air conditioner opening/closing functions are available, the remote air conditioner can automatically open the heating or refrigerating function of the air conditioner according to the set temperature of a user, and the temperature in the passenger compartment is adjusted to the set state of the user in advance, so that the comfort of the user in the process of riding is improved. However, the comfort of users is emphasized in the current control method of the remote air conditioner, the energy consumption of the air conditioner system is concerned a little, and the energy-saving appeal cannot be effectively considered; particularly, electric vehicles have a prominent complaint about a sharp decrease in driving mileage in the case of turning on an air conditioner in winter and summer;
for example, in cold winter, after a user sets a target temperature and starts a remote air conditioner, the controller judges that the condition of automatic air conditioner starting is met, the air conditioner starts to work, a high-pressure heater or a heat pump air conditioner is adopted to heat a passenger compartment, and after the target temperature is reached, if the user does not enter the passenger compartment at the moment, the air conditioning system needs to continuously work, energy is consumed all the time; although the method can meet the comfort of the passenger compartment, the method has great influence on the battery power consumption of the electric vehicle.
In hot summer, after a user sets a target temperature and starts a remote air conditioner, the controller judges that the automatic air conditioner starting condition is met, the air conditioner starts to work, an air conditioner compressor is usually started to cool a passenger compartment, and after the target temperature is reached, if the user does not enter the passenger compartment at the moment, the air conditioning system needs to continuously work, energy is consumed all the time; this method also has a great influence on the battery power consumption of the electric vehicle.
A remote air conditioner control method is urgently needed to be designed, on the basis of meeting the comfort requirement of a user, energy consumption is reduced to the maximum extent, and the endurance mileage of the whole vehicle is improved.
Disclosure of Invention
In order to solve the problems, the invention provides a system and a method for controlling comfort and energy conservation of a remote air conditioner of an electric vehicle, which cover the use conditions of different regions and different seasons, and realize energy consumption optimization, increase the endurance mileage of the whole vehicle and improve the user experience by reasonably setting the working state and the working duration of a heat source or a cold source of an air conditioning system after acquiring an instruction of a user to start the remote air conditioner.
The invention is realized by the following technical scheme:
a comfortable and energy-conserving control system of electric automobile remote air conditioner:
the system comprises a mobile terminal application APP, a vehicle-mounted remote data terminal, a vehicle control unit, an air conditioner controller, an environment temperature sensor, a sunlight sensor, a vehicle-mounted temperature sensor, an air conditioner electric compressor, an electric heater, a cooling fan and an air blower;
the mobile terminal applies the APP to control the air conditioner;
the vehicle-mounted remote data terminal is used for receiving an air conditioner combination instruction sent by the mobile terminal application APP and sending a requirement to the vehicle controller;
the vehicle control unit receives the instruction, judges whether the vehicle meets the conditions of vehicle starting and air conditioner starting, and sends the instruction to the air conditioner controller;
the environment temperature sensor is used for detecting the environment temperature of the position where the vehicle is located;
the in-vehicle temperature sensor is used for detecting the in-vehicle temperature;
the sunlight sensor acquires illumination conditions;
the air-conditioning electric compressor, the electric heater, the cooling fan and the blower are used for cooling or heating the interior of the vehicle.
Further, the air conditioner control comprises the opening and closing of the air conditioner, the set temperature of the air conditioner and the starting time length, wherein the starting time length is the time length from the time when the user enters the passenger compartment of the vehicle after the user sends a remote air conditioner opening instruction.
Further, when the vehicle controller judges that the vehicle does not meet the conditions of vehicle starting and air conditioner starting, the vehicle is not started, the information and reasons which cannot be started are fed back to the vehicle-mounted remote data terminal, and the information and reasons are fed back to the mobile terminal application APP step by step to inform a user;
when the vehicle controller judges that the vehicle meets the conditions of vehicle starting and air conditioner starting, the vehicle starts, the vehicle controller sends an air conditioner combination instruction to the air conditioner controller, and the air conditioner controller controls the air conditioner electric compressor, the electric heater, the cooling fan and the air blower by combining the set temperature of the air conditioner of a user, the starting time, the ambient temperature of the position where the vehicle is located, the temperature in the vehicle and the illumination condition.
A comfortable and energy-saving control method for a remote air conditioner of an electric automobile comprises the following steps:
the method specifically comprises the following steps:
step 1, a mobile terminal applies an APP to send a remote air conditioner combination instruction;
step 2, after receiving the air conditioner combination instruction, the vehicle-mounted remote data terminal sends a vehicle starting instruction to the vehicle control unit;
if the vehicle is met, starting the vehicle, sending an air conditioner combination instruction to an air conditioner controller by the vehicle control unit, and executing the step 4;
step 4, after receiving the instruction, the air conditioner controller judges whether the in-vehicle temperature T3 is greater than the set air conditioner temperature T1 or not by combining the set air conditioner temperature T1, the starting time T, the ambient temperature T2 of the vehicle, the illumination intensity P and the in-vehicle temperature T3 of the user, and calculates to obtain the running state of the air conditioner;
executing the step 5 if the in-vehicle temperature T3 is greater than the set temperature T1 of the air conditioner, and executing the step 6 if the in-vehicle temperature T3 is less than the set temperature T1 of the air conditioner;
step 5, starting a refrigeration working mode of the air conditioner;
and 6, starting a heating working mode by the air conditioner.
Further, in step 3,
setting the minimum cooling power to P ACLow The maximum refrigerating power is P ACHigh The lowest heating power is P HeatLow The maximum heating power is P HeatHigh The power corresponding to the current temperature of the passenger compartment is maintained to be P car The equivalent heat capacity of the passenger compartment is m × c, wherein m is equivalent mass, and c is equivalent specific heat capacity;
if the in-vehicle temperature T3 at the starting time is relatively close to the set temperature T1, the in-vehicle temperature T3 can be reduced to the set temperature T1 of the air conditioner before the starting time T even if the air conditioning system works at the lowest refrigeration power line,
at time t2 1 Before, the air-conditioning system is temporarily out of operation, at t2 1 Then working with the lowest refrigeration power line, accurately realizing the consistency of the temperature T3 in the vehicle and the set temperature T1 at the moment T, and at the moment T2 1 The moment is the intersection point moment of the air conditioner temporary non-opening line and the refrigeration lowest power line, t2 1 ＝t-(T3-T1)*(m*c)/(P ACLow -P car )；
If the in-vehicle temperature T3 at the starting time is closer to the ambient temperature T2, the in-vehicle temperature T3 can be increased to the set temperature T1 before the starting time T even if the air conditioning system works with the lowest heating power line,
at time t2 2 Before, the air conditioning system is temporarily not operated, at t2 2 Then the heating device works with the lowest power line of heating, the temperature T3 in the vehicle is accurately consistent with the set temperature T1 at the moment T, and at the moment T2 2 The moment is the intersection point moment of the air conditioner temporary non-opening line and the heating lowest power line, t2 2 ＝t-(T1-T3)*(m*c)/(P HeatLow -P car )。
Further, in step 4, the process of the present invention,
when the temperature T3 in the vehicle is not less than the ambient temperature T2 of the vehicle, in the time interval of the starting time T, the air conditioner is started in the first stage, firstly works according to the refrigeration lowest power line, and operates to T2 3 At any moment, the running state of the air conditioner is switched to the fastest cooling rate line; at this time t2 3 The moment is the intersection point moment of the refrigeration lowest power line and the fastest cooling rate line,
the temperature change at each moment when the refrigeration is operated by adopting the refrigeration lowest power line is (P) ACLow -P car ) V (m + c); operating with maximum power with a temperature change of (P) for each time instant ACHigh -P car ) V (m × c), when T3-T1= T2 3 *(P ACLow -P car )/(m*c)+(t-t2 3 )*(P ACHigh -P car )/(m*c)；
I.e. t2 3 ＝[(T3-T1)*(m*c)-(P ACHigh -P car )*t]/(P ACLow -P ACHigh )。
Further, if the temperature T3 in the vehicle is not more than the set temperature T1, in the time interval of the starting time T, the air conditioner is started in the first stage, works according to the lowest heating power line, and operates to T2 4 At the moment, the running state of the air conditioner is switched to the line running with the fastest heating rate; at this time t2 4 The moment is the intersection point moment of the heating lowest power line and the fastest heating rate line;
the temperature change at each moment when the heating minimum power line is adopted to operate is (P) HeatLow -P car ) V (m x c); temperature variation to (P) for each time instant when operating with maximum power HeatHigh -P car ) V (m × c), when T1-T3= T2 4 *(P HeatLow -P car )/(m*c)+(t-t2 4 )*(P HeatHigh -P car )/(m*c)，
I.e. t2 4 ＝[(T1-T3)*(m*c)-(P HeatHigh -P car )*t]/(P HeatLow -P HeatHigh )。
An electronic device comprising a memory storing a computer program and a processor implementing the steps of the above method when executing the computer program.
A computer readable storage medium storing computer instructions which, when executed by a processor, implement the steps of the above-described method.
A vehicle, characterized by comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the steps of the above method.
The invention has the beneficial effects
On the basis of meeting the noise requirement, the temperature in the vehicle is accurately regulated in the whole air-conditioning refrigeration process, the temperature in the vehicle is consistent with the set temperature at the moment when the starting time of a user is reached, namely the moment when the user predicts to enter the vehicle, the temperature in the vehicle is prevented from prematurely reaching the set temperature, the temperature difference between the temperature in the vehicle and the ambient temperature is avoided to be overlarge, and in order to keep the set temperature, an air-conditioning refrigeration system is required to continuously work in a large working load state, so that energy waste is caused.
The invention can be suitable for use conditions in different regions and different seasons, and can realize energy consumption optimization while meeting the comfort of users in the passenger compartment
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 illustrates a summer cooling mode of operation of the remote air conditioner of the present invention;
FIG. 3 illustrates a winter heating mode of the remote air conditioner of the present invention;
FIG. 4 illustrates a spring/autumn cooling mode of the remote air conditioner of the present invention;
FIG. 5 is a spring/autumn heating mode of the remote air conditioner of the present invention;
fig. 6 shows an internal communication structure of the present invention, in which 401 is a memory, 402 is a processor, and 403 is a communication interface.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
With reference to fig. 1 to 6.
A comfortable and energy-conserving control system of electric automobile remote air conditioner:
the system comprises a mobile terminal application APP, a vehicle-mounted remote data terminal, a vehicle control unit, an air conditioner controller, an ambient temperature sensor, a sunlight sensor, a vehicle-mounted temperature sensor, an air conditioner electric compressor, an electric heater, a cooling fan and an air blower;
the mobile terminal applies the APP to control the air conditioner;
the vehicle-mounted remote data terminal is used for receiving an air conditioner combination instruction sent by the mobile terminal application APP and sending a requirement to the vehicle control unit;
the vehicle controller judges whether the vehicle meets the conditions of vehicle starting and air conditioner starting after receiving the instruction, and sends the instruction to the air conditioner controller;
the environment temperature sensor is used for detecting the environment temperature of the position where the vehicle is located;
the in-vehicle temperature sensor is used for detecting the in-vehicle temperature;
the sunlight sensor acquires illumination conditions;
the air-conditioning electric compressor, the electric heater, the cooling fan and the blower are used for cooling or heating the interior of the vehicle.
The air conditioner control comprises the turning on and off of an air conditioner, the set temperature of the air conditioner and the starting time (the estimated getting-on time), wherein the starting time (the estimated getting-on time) is the time from the user to the time when the user enters the passenger compartment of the vehicle after the user sends a remote air conditioner turning-on instruction.
When the vehicle controller judges that the vehicle does not meet the conditions of vehicle starting and air conditioner starting, the vehicle is not started, the information and reasons which cannot be started are fed back to the vehicle-mounted remote data terminal, and the information and reasons are fed back to the mobile terminal application APP step by step to inform a user;
when the vehicle controller judges that the vehicle meets the conditions of vehicle starting and air conditioner starting, the vehicle starts, the vehicle controller sends an air conditioner combination instruction to the air conditioner controller, and the air conditioner controller controls the air conditioner electric compressor, the electric heater, the cooling fan and the air blower by combining the set temperature of the air conditioner of a user, the starting time, the ambient temperature of the position where the vehicle is located, the temperature in the vehicle and the illumination condition.
And judging the working mode of the air conditioner by comparing the temperature in the vehicle with the set temperature. If the temperature in the vehicle is higher than the set temperature, the air conditioner enters a refrigeration working mode, the running state of a refrigeration component of the air conditioner is reasonably controlled, such as the rotating speed of a compressor, the rotating speed of a cooling fan and the rotating speed of an air blower, on the basis of meeting the noise requirement, the temperature in the vehicle is accurately regulated in the whole air conditioner refrigeration process, the temperature in the vehicle is consistent with the set temperature at the moment when a user starts the vehicle, namely the moment when the user predicts the time of entering the vehicle, the temperature in the vehicle is prevented from reaching the set temperature too early, the temperature difference between the temperature in the vehicle and the ambient temperature is prevented from being too large, and in order to keep the set temperature, the air conditioner refrigeration system needs to continuously work in a large working load state, so that energy waste is caused.
If the temperature in the vehicle is lower than the set temperature, the air conditioner enters a heating working mode, the running state of heating components of the air conditioner is reasonably controlled, such as PTC power of an electric heater or the rotating speed of a compressor, the rotating speed of an air blower and the like of a heat pump air conditioner, on the basis of meeting the noise requirement, accurate adjustment of the temperature in the vehicle is achieved, the temperature in the vehicle is consistent with the set temperature at the moment when a user predicts to enter the vehicle, and therefore energy waste is avoided.
A comfort and energy-saving control method for a remote air conditioner of an electric automobile comprises the following steps:
the method specifically comprises the following steps:
step 1, a mobile terminal applies an APP to send a remote air conditioner combination instruction;
step 2, after receiving the air conditioner combination instruction, the vehicle-mounted remote data terminal sends a vehicle starting instruction to the vehicle control unit;
if the vehicle is met, starting the vehicle, sending an air conditioner combination instruction to an air conditioner controller by the vehicle control unit, and executing the step 4;
step 4, after receiving the instruction, the air conditioner controller judges whether the in-vehicle temperature T3 is greater than the set air conditioner temperature T1 or not by combining the set air conditioner temperature T1, the starting time T, the ambient temperature T2 of the vehicle, the illumination intensity P and the in-vehicle temperature T3 of the user, and calculates to obtain the running state of the air conditioner;
executing the step 5 if the in-vehicle temperature T3 is greater than the set temperature T1 of the air conditioner, and executing the step 6 if the in-vehicle temperature T3 is less than the set temperature T1 of the air conditioner;
step 5, starting a refrigeration working mode of the air conditioner; (operation states of refrigeration components of the air conditioner, such as the rotating speed of a compressor, the rotating speed of a cooling fan, the rotating speed of a blower and the like, are determined according to the principles of reasonable time, proper temperature in the air conditioner, energy conservation of the air conditioner and good noise by optimizing a control method.)
And 6, starting a heating working mode by the air conditioner. (according to the principle of reasonable time, proper temperature in the vehicle, energy saving of the air conditioner and good noise, the operation state of heating components of the air conditioner, such as the power of an electric heater (PTC), the rotating speed of a compressor of a heat pump air conditioner, the rotating speed of an air blower and the like, is determined by an optimized control method.)
In the step 3, the process is carried out,
the air conditioner controller designs a reasonable air conditioner refrigeration or heating control strategy by judging the magnitude relation between the temperature in the vehicle and the set temperature, the temperature in the vehicle is accurately consistent with the set temperature when the starting time reaches the moment, namely the moment when a user expects to enter the vehicle, and the difference between the temperature in the vehicle and the ambient temperature at each moment is smaller in the whole process; the time when the temperature in the vehicle reaches the set temperature can be slightly ahead of the starting duration, and the advance value is a calibratable value;
setting the minimum cooling power to P ACLow The maximum refrigerating power is P ACHigh The lowest heating power is P HeatLow The maximum heating power is P HeatHigh The power corresponding to the current temperature of the passenger compartment is maintained to be P car The equivalent heat capacity of the passenger compartment is m × c, wherein m is equivalent mass, and c is equivalent specific heat capacity;
the refrigeration lowest power line is related to the working characteristics of an air conditioner compressor of the electric vehicle and generally corresponds to the lowest stable working rotating speed of the compressor; the fastest cooling rate line needs to take the operating efficiency and the noise level of an air-conditioning refrigeration system into consideration, usually, the rotating speed of an air-conditioning electric compressor can be 4500rpm, and the value is a calibratable value;
if the temperature in the vehicle is higher than the set temperature and the difference value between the temperature and the set temperature is smaller, the air conditioner does not work for the moment at first, and then the air conditioner works by adopting a refrigeration lowest power line; that is, if the in-vehicle temperature T3 at the starting time is relatively close to the set temperature T1, even if the air conditioning system operates at the lowest refrigeration power line, the in-vehicle temperature T3 can be reduced to the set temperature T1 of the air conditioner before the starting time T, and then the air conditioning refrigeration system needs to operate continuously to maintain the in-vehicle temperature T3 consistent with the set temperature T1, which causes energy loss, as shown in a path 1 in fig. 4;
at time t2 1 Before, the air conditioning system is temporarily not operated, at t2 1 Then working with the lowest refrigeration power line, accurately realizing the consistency of the temperature T3 in the vehicle and the set temperature T1 at the moment T, and at the moment T2 1 The moment is the intersection point moment of the air conditioner temporary non-opening line and the refrigeration lowest power line, t2 1 ＝t-(T3-T1)*(m*c)/(P ACLow -P car )；
If the temperature in the vehicle is lower than the set temperature and the difference value between the temperature and the set temperature is larger, the air-conditioning heating working mode is started, and the combined control mode of the lowest power line and the fastest heating rate line for heating can be adopted for working; that is, the in-vehicle temperature T3 at the starting time is relatively close to the ambient temperature T2, even if the air conditioning system operates with the lowest heating power line, the in-vehicle temperature T3 may be increased to the set temperature T1 before the starting time T, and then the air conditioning heating system needs to operate continuously to maintain the in-vehicle temperature T3 consistent with the set temperature T1, which causes energy loss, as shown by a path 1 in fig. 5;
then is atAt time t2 2 Before, the air conditioning system is temporarily not operated, at t2 2 Then the heating device works with the lowest power line of heating, the temperature T3 in the vehicle is accurately consistent with the set temperature T1 at the moment T, and at the moment T2 2 The moment is the intersection point moment of the air conditioner temporary non-opening line and the heating lowest power line, t2 2 ＝t-(T1-T3)*(m*c)/(P HeatLow -P car )。
In the step 4, the process is carried out,
due to the influence of sunlight, the temperature T3 in the vehicle is more than or equal to the ambient temperature T2 of the vehicle, for example, in hot summer, as shown in FIG. 2,
when the temperature T3 in the vehicle is not less than the ambient temperature T2 of the vehicle, in the time interval of the starting time T, the air conditioner is started in the first stage, the air conditioner firstly works according to the refrigeration minimum power line, for example, the minimum working rotating speed of a compressor is 800rpm, and the air conditioner runs to T2 3 At any moment, the running state of the air conditioner is switched into a fastest cooling rate line; wherein the fastest cooling rate line needs to comprehensively consider noise and the running efficiency of the compressor, such as the rotating speed of the compressor of 4500rpm;
at this time t2 3 The moment is the intersection point moment of the refrigeration lowest power line and the fastest cooling rate line,
the temperature change at each moment when the refrigeration is operated by adopting the refrigeration lowest power line is (P) ACLow -P car ) V (m + c); temperature variation to (P) for each time instant when operating with maximum power ACHigh -P car ) V (m × c), when T3-T1= T2 3 *(P ACLow -P car )/(m*c)+(t-t2 3 )*(P ACHigh -P car )/(m*c)；
I.e. t2 3 ＝[(T3-T1)*(m*c)-(P ACHigh -P car )*t]/(P ACLow -P ACHigh )。
Compared with the path 1 and the path 2 in fig. 2, the scheme can significantly reduce the temperature difference between the indoor temperature T3 corresponding to each moment and the ambient temperature T2 in the whole refrigeration starting time interval T, so as to reduce the energy consumption of the air conditioner for maintaining the indoor temperature T3 at each moment.
If the in-vehicle temperature T3 is not greater than the set temperature T1, as shown in FIG. 3, for example, in cold winter, during the starting time TIn the interval, the air conditioner is started in the first stage, the air conditioner works according to the lowest heating power line, and if the air conditioner is electrically heated, if the electric heater PTC is operated at the lowest heating power; if a heat pump air conditioner is adopted, if the lowest working speed of the compressor is 800rpm, the operation is carried out to t2 4 At the moment, the operation state of the air conditioner is switched to the operation of the fastest heating rate line, wherein the fastest heating rate line needs to comprehensively consider PTC efficiency, compressor efficiency (if the air conditioner is a heat pump air conditioner) and noise; at this time t2 4 The moment is the intersection point moment of the heating lowest power line and the fastest heating rate line;
the temperature change at each moment when the heating minimum power line is adopted to operate is (P) HeatLow -P car ) V (m x c); operating with maximum power with a temperature change of (P) for each time instant HeatHigh -P car ) V (m × c), when T1-T3= T2 4 *(P HeatLow -P car )/(m*c)+(t-t2 4 )*(P HeatHigh -P car )/(m*c)，
I.e. t2 4 ＝[(T1-T3)*(m*c)-(P HeatHigh -P car )*t]/(P HeatLow -P HeatHigh )。
Compared with the path 1 and the path 2 in fig. 3, the scheme can remarkably reduce the temperature difference between the in-vehicle temperature T3 and the ambient temperature T2 corresponding to each moment in the whole heating starting time interval T, so that the energy consumption of the air conditioner for maintaining the indoor temperature T3 at each moment is reduced.
An electronic device comprising a memory storing a computer program and a processor implementing the steps of the above method when executing the computer program.
A computer readable storage medium storing computer instructions which, when executed by a processor, implement the steps of the above-described method.
A vehicle, characterized by comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the steps of the above method.
The vehicle further includes:
a communication interface 403 for communication between the memory 401 and the processor 402.
A memory 401 for storing computer programs executable on the processor 402.
If the memory 401, the processor 402 and the communication interface 403 are implemented independently, the communication interface 403, the memory 401 and the processor 402 may be connected to each other through a bus and perform communication with each other. The bus may be an Industry Standard Architecture, abbreviated ISA bus, peripheral Component, abbreviated PCI bus, or Extended Industry Standard Architecture, abbreviated EISA bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 6, but that does not indicate only one bus or one type of bus.
Optionally, in a specific implementation, if the memory 401, the processor 402, and the communication interface 403 are integrated on a chip, the memory 401, the processor 402, and the communication interface 403 may complete mutual communication through an internal interface.
The electric vehicle remote air conditioner comfort and energy-saving control system and the control method provided by the invention are introduced in detail, the principle and the implementation mode of the invention are explained, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides a comfortable and energy-conserving control system of electric automobile remote air conditioner which characterized in that:
the system comprises a mobile terminal application APP, a vehicle-mounted remote data terminal, a vehicle control unit, an air conditioner controller, an environment temperature sensor, a sunlight sensor, a vehicle-mounted temperature sensor, an air conditioner electric compressor, an electric heater, a cooling fan and an air blower;
the mobile terminal applies the APP to control the air conditioner;
the vehicle-mounted remote data terminal is used for receiving an air conditioner combination instruction sent by the mobile terminal application APP and sending a requirement to the vehicle control unit;
the vehicle control unit receives the instruction, judges whether the vehicle meets the conditions of vehicle starting and air conditioner starting, and sends the instruction to the air conditioner controller;
the environment temperature sensor is used for detecting the environment temperature of the position where the vehicle is located;
the in-vehicle temperature sensor is used for detecting the in-vehicle temperature;
the sunlight sensor acquires illumination conditions;
the air-conditioning electric compressor, the electric heater, the cooling fan and the blower are used for refrigerating or heating the interior of the vehicle.
2. The system of claim 1, wherein:
the air conditioner control comprises the opening and closing of an air conditioner, the set temperature of the air conditioner and the starting time length, wherein the starting time length is the time length from a user to the time when the user enters a passenger compartment of the vehicle after the user sends a remote air conditioner opening instruction.
3. The system of claim 2, wherein:
when the vehicle controller judges that the vehicle does not meet the conditions of vehicle starting and air conditioner starting, the vehicle is not started, the information and reasons which cannot be started are fed back to the vehicle-mounted remote data terminal, and the information and reasons are fed back to the mobile terminal application APP step by step to inform a user;
when the vehicle controller judges that the vehicle meets the conditions of vehicle starting and air conditioner starting, the vehicle starts, the vehicle controller sends an air conditioner combination instruction to the air conditioner controller, and the air conditioner controller controls the air conditioner electric compressor, the electric heater, the cooling fan and the air blower by combining the set temperature of the air conditioner of a user, the starting time, the ambient temperature of the position where the vehicle is located, the temperature in the vehicle and the illumination condition.
4. A comfortable and energy-saving control method for a remote air conditioner of an electric automobile is characterized by comprising the following steps:
the method specifically comprises the following steps:
step 1, a mobile terminal applies an APP to send a remote air conditioner combination instruction;
step 2, after receiving the air conditioner combination instruction, the vehicle-mounted remote data terminal sends a vehicle starting instruction to the vehicle control unit;
step 3, the vehicle control unit confirms whether vehicle starting and air conditioner starting conditions are met, if not, the vehicle is not started, information and reasons which cannot be started are fed back to the vehicle-mounted remote data terminal, and fed back to the mobile terminal application APP step by step, and a user is informed;
if the vehicle is met, starting the vehicle, sending an air conditioner combination instruction to an air conditioner controller by the vehicle control unit, and executing the step 4;
step 4, after receiving the instruction, the air conditioner controller judges whether the in-vehicle temperature T3 is greater than the set air conditioner temperature T1 or not by combining the set air conditioner temperature T1, the starting time T, the ambient temperature T2 of the vehicle, the illumination intensity P and the in-vehicle temperature T3 of the user, and calculates to obtain the running state of the air conditioner;
executing the step 5 if the in-vehicle temperature T3 is greater than the set temperature T1 of the air conditioner, and executing the step 6 if the in-vehicle temperature T3 is less than the set temperature T1 of the air conditioner;
step 5, starting a refrigeration working mode of the air conditioner;
and 6, starting a heating working mode by the air conditioner.
5. The method of claim 4, further comprising: in the step 3, the process is carried out,
setting the minimum cooling power to P ACLow The maximum refrigerating power is P ACHigh The lowest heating power is P HeatLow The maximum heating power is P HeatHigh The power corresponding to the current temperature of the passenger compartment is maintained to be P car The equivalent heat capacity of the passenger compartment is m × c, wherein m is equivalent mass, and c is equivalent specific heat capacity;
if the in-vehicle temperature T3 at the starting time is closer to the set temperature T1, the in-vehicle temperature T3 can be reduced to the set temperature T1 of the air conditioner before the starting time T even if the air conditioning system works at the lowest refrigeration power line,
at time t2 1 Before, the air conditioning system is temporarily not operated, at t2 1 Then working with the lowest refrigeration power line, accurately realizing the consistency of the temperature T3 in the vehicle and the set temperature T1 at the moment T, and at the moment T2 1 The moment is the intersection point moment of the air conditioner temporary non-opening line and the refrigeration lowest power line, t2 1 ＝t-(T3-T1)*(m*c)/(P ACLow -P car )；
If the in-vehicle temperature T3 at the starting time is closer to the ambient temperature T2, the in-vehicle temperature T3 can be increased to the set temperature T1 before the starting time T even if the air conditioning system works with the lowest heating power line,
at time t2 2 Before, the air conditioning system is temporarily not operated, at t2 2 Then the heating device works with the lowest power line of heating, the temperature T3 in the vehicle is accurately consistent with the set temperature T1 at the moment T, and at the moment T2 2 The moment is the intersection point moment of the air conditioner temporary non-opening line and the heating lowest power line, t2 2 ＝t-(T1-T3)*(m*c)/(P HeatLow -P car )。
6. The method of claim 5, further comprising: in the step 4, the process is carried out,
when the temperature T3 in the vehicle is not less than the ambient temperature T2 of the vehicle, in the time interval of the starting time T, the air conditioner is started in the first stage, firstly works according to the refrigeration lowest power line, and operates to T2 3 At any moment, the running state of the air conditioner is switched into a fastest cooling rate line; at this time t2 3 The moment is the lowest power line and the lowest power line of refrigerationThe point of intersection of the fast cool down rate lines,
the temperature change at each moment when operating with the refrigeration minimum power line is (P) ACLow -P car ) V (m x c); temperature variation to (P) for each time instant when operating with maximum power ACHigh -P car ) V (m × c), when T3-T1= T2 3 *(P ACLow -P car )/(m*c)+(t-t2 3 )*(P ACHigh -P car )/(m*c)；
I.e. t2 3 ＝[(T3-T1)*(m*c)-(P ACHigh -P car )*t]/(P ACLow -P ACHigh )。
7. The system of claim 6, wherein:
if the temperature T3 in the vehicle is not more than the set temperature T1, in the time interval of the starting time T, the air conditioner is started in the first stage, works according to the lowest heating power line and runs to T2 4 At the moment, the running state of the air conditioner is switched to the line running with the fastest heating rate; at this time t2 4 The moment is the intersection point moment of the heating lowest power line and the fastest heating rate line;
the temperature change at each moment when the heating minimum power line is adopted to operate is (P) HeatLow -P car ) V (m + c); operating with maximum power with a temperature change of (P) for each time instant HeatHigh -P car ) V (m × c), when T1-T3= T2 4 *(P HeatLow -P car )/(m*c)+(t-t2 4 )*(P HeatHigh -P car )/(m*c)，
I.e. t2 4 ＝[(T1-T3)*(m*c)-(P HeatHigh -P car )*t]/(P HeatLow -P HeatHigh )。
8. An electronic device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor realizes the steps of the method as claimed in claims 4 to 7 when executing the computer program.
9. A computer-readable storage medium storing computer instructions for implementing the steps of the method of claims 4 to 7 when executed by a processor.
10. A vehicle, characterized by comprising: memory, processor and computer program stored on the memory and executable on the processor, the processor executing the program to implement the steps of the method as claimed in claims 4 to 7.
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