CN115366622B

CN115366622B - Refrigeration control method, device, equipment and medium for new energy automobile air conditioner

Info

Publication number: CN115366622B
Application number: CN202211314623.7A
Authority: CN
Inventors: 耿石峰; 梁猛; 李海风; 赵玉河
Original assignee: Light Orange Times Shenzhen Technology Co ltd
Current assignee: Light Orange Times Shenzhen Technology Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-02-03
Anticipated expiration: 2042-10-26
Also published as: CN115366622A

Abstract

The embodiment of the invention discloses a refrigeration control method, a refrigeration control device, refrigeration control equipment and a refrigeration control medium for a new energy automobile air conditioner, wherein the method comprises the steps of calculating initial cold air volume according to initial environment temperature, set temperature, a strong light judgment result, a sultry judgment result and initial passenger cabin temperature, wherein the initial passenger cabin temperature is calculated according to the actual temperature of an initial evaporator; calculating a target cold air volume according to the initial environment temperature, the set temperature, the strong light judgment result and the sultry judgment result; determining the actual temperature of the target evaporator according to the initial environment temperature and the set temperature; and controlling the new energy automobile air conditioner according to a preset cold air quantity reduction strategy according to the actual temperature of the target evaporator, the initial passenger compartment temperature, the initial cold air quantity and the target cold air quantity. The automatic refrigeration mode is realized, and the whole process only needs detection data of two sensors, namely an evaporator temperature sensor and an environment temperature sensor, which are necessary for the automobile.

Description

Refrigeration control method, device, equipment and medium for new energy automobile air conditioner

Technical Field

The invention relates to the technical field of automobile air conditioners, in particular to a refrigeration control method, a refrigeration control device, refrigeration control equipment and refrigeration control medium for a new energy automobile air conditioner.

Background

With the development of air conditioning technology, the existing automatic air conditioner for the automobile is more and more common. The control mode of the existing automobile air conditioner generally needs to install a sensor in a cabin, such as: temperature sensors, light sensors, etc., or some other electronic components may need to be added, such as: a photo-resistor, a thermistor, a capacitor, etc. A temperature sensor, an illumination sensor, other electronic components and the like are arranged in an automobile cabin (such as an air conditioner control panel, a black box or other independent parts, an air inlet, an air outlet and the like), data of each sensor are processed by adopting a preset algorithm, and the air volume in a refrigeration automatic mode is automatically adjusted according to the processed data, so that the refrigeration effect of the automobile air conditioner meets the comfort requirement of a user as much as possible.

However, the above-mentioned automatic air conditioner needs additional sensors and electronic components, which increases the cost and affects the overall appearance of the interior of the vehicle. For some low-price vehicle types, the sensor cannot be assembled generally due to cost consideration, so that the automatic mode of air conditioner refrigeration cannot be realized, the air conditioner can be controlled only in a fixed mode, and the comfort is reduced.

Disclosure of Invention

Based on this, it is necessary to provide a refrigeration control method, device, equipment and medium for a new energy automobile air conditioner, aiming at the technical problems that the existing low-price automobile type cannot be generally assembled with the sensor due to cost, so that an air conditioner refrigeration automatic mode cannot be realized, the air conditioner can only be controlled in a fixed mode, and the comfort is reduced.

The application provides a refrigeration control method of a new energy automobile air conditioner, which comprises the following steps:

acquiring an initial change signal of a refrigeration control initial zone bit;

responding to the initial change signal, and calculating initial cold air volume according to the obtained initial environment temperature, set temperature, strong light judgment result, sultry judgment result and initial passenger compartment temperature, wherein the initial passenger compartment temperature is calculated according to the actual temperature of an initial evaporator and the initial environment temperature;

calculating a target cold air volume according to the initial environment temperature, the set temperature, the strong light judgment result and the sultry judgment result;

according to the initial environment temperature and the set temperature, the evaporator temperature is searched from a preset evaporator temperature mapping table and is used as the actual temperature of the target evaporator;

and controlling the new energy automobile air conditioner according to a preset cold air quantity reduction strategy according to the actual temperature of the target evaporator, the initial passenger compartment temperature, the initial cold air quantity and the target cold air quantity.

Further, the step of responding to the initial change signal, calculating the initial cold air volume according to the obtained initial environment temperature, the set temperature, the strong light judgment result, the sultry judgment result and the initial passenger compartment temperature, comprises:

responding to the initial change signal, and acquiring the actual temperature of the initial evaporator and the initial environment temperature;

if the initial evaporator actual temperature is greater than or equal to the initial environment temperature, dividing the initial evaporator actual temperature by the initial environment temperature to obtain a first ratio, inputting the first ratio into a preset first adjustment formula to obtain a first coefficient, and multiplying the initial evaporator actual temperature by the first coefficient to obtain an initial evaporator virtual temperature, wherein the first adjustment formula is expressed as: log (log) _a1 (X ₁ +b)+c，0<a1<1, b, c are predetermined constants, log is a logarithmic function, X ₁ Is the first ratio;

if the initial evaporator actual temperature is less than the initial ambient temperature, and the initial evaporator actual temperature is greater than or equal to a difference value obtained by subtracting a preset temperature threshold value from the initial ambient temperature, dividing the initial ambient temperature by the initial evaporator actual temperature to obtain a second ratio, inputting the second ratio into a preset second adjustment formula to obtain a second coefficient, and multiplying the initial ambient temperature by the second coefficient to obtain the initial evaporator virtual temperature, wherein the second adjustment formula is expressed as: log (log) _a2 (X ₂ +d)+e，0<a2<1, d, e are predetermined constants, X ₂ Is the second ratio;

if the actual temperature of the initial evaporator is smaller than the difference value obtained by subtracting the temperature threshold value from the initial environment temperature, calculating the virtual temperature of the initial evaporator according to a preset correction formula, the actual temperature of the initial evaporator and the initial environment temperature, wherein the correction formula is as follows: tevap + k (Tamb-Tevap), tevap being the initial evaporator actual temperature, tamb being the initial ambient temperature, k = f/(g + (Tamb-Tevap)), f, g being preset constants;

taking the initial evaporator virtual temperature as the initial passenger compartment temperature;

acquiring the set temperature, the strong light judgment result and the sultry judgment result;

and calculating the initial cold air volume according to the initial environment temperature, the set temperature, the strong light judgment result, the sultry judgment result and the initial passenger compartment temperature.

Further, the step of obtaining the initial environment temperature, the set temperature, the strong light judgment result and the sultry judgment result includes:

calculating a strong illumination judgment result according to a preset strong illumination judgment condition, the current time, the initial environment temperature and the set temperature, wherein the strong illumination judgment result is used for expressing whether the new energy automobile air conditioner is in a strong illumination day or a sultry day;

and calculating the sultriness judgment result according to a preset sultriness judgment condition, the current time, the initial environment temperature and the set temperature, wherein the sultriness judgment result is used for expressing whether the new energy automobile air conditioner is in the night which is not very sultriness.

Further, according to the initial ambient temperature, the set temperature, the strong light judgment result, the sultry judgment result and the initial passenger cabin temperature that acquire, calculate the step of the cold wind volume of beginning, include:

according to the initial environment temperature, searching a first basic cold air volume from a preset first mapping table;

according to the initial passenger compartment temperature, searching a first cold air amount supplement value from a preset second mapping table;

according to the set temperature, searching a second cold air amount supplement value from a preset third mapping table;

searching a third cold air flow supplement value from a preset fourth mapping table according to the strong light judgment result;

according to the difference value between the set temperature and the initial environment temperature, a fourth cold air amount supplement value is searched from a preset fifth mapping table;

according to the sultry judgment result, searching a sixth cold air flow supplement value from a preset seventh mapping table;

and correcting the first basic cold air flow according to the first cold air flow supplement value, the second cold air flow supplement value, the third cold air flow supplement value, the fourth cold air flow supplement value and the sixth cold air flow supplement value to obtain the initial cold air flow.

Further, the step of calculating a target amount of cold air according to the initial environment temperature, the set temperature, the strong light judgment result and the sultry judgment result includes:

according to the initial environment temperature, searching a second basic cold air volume from a preset eighth mapping table, wherein the second basic cold air volume is smaller than the first basic cold air volume;

searching a seventh cold air amount supplement value from a preset ninth mapping table according to the set temperature;

searching for an eighth cold air amount supplement value from a preset tenth mapping table according to the strong illumination judgment result;

according to the difference value between the set temperature and the initial environment temperature, a ninth cold air quantity supplement value is searched from a preset eleventh mapping table;

according to the sultry judgment result, searching for an eleventh cold air flow supplement value from a preset thirteenth mapping table;

and correcting the second basic cold air flow according to the seventh cold air flow supplement value, the eighth cold air flow supplement value, the ninth cold air flow supplement value and the eleventh cold air flow supplement value to obtain the target cold air flow.

Further, according to the target evaporator actual temperature, the initial passenger compartment temperature, the initial cold air volume and the target cold air volume, the step of controlling the new energy automobile air conditioner according to a preset cold air volume reduction strategy comprises the following steps:

adjusting the cold air volume of the new energy automobile air conditioner to the initial cold air volume by adopting a preset starting cold air volume adjusting strategy to obtain a descending signal;

subtracting the target evaporator actual temperature from the initial passenger compartment temperature in response to the descent signal to obtain a target virtual temperature difference;

subtracting the initial cold air volume from the target cold air volume to obtain a cold air volume difference value, and searching a descending proportion point set from a preset fourteenth mapping table according to the cold air volume difference value, wherein descending proportion points in the descending proportion point set are arranged in a descending order;

acquiring a counter, and initializing the counter to be 1;

acquiring the descending proportion points with the same sequencing sequence number as the counter from the descending proportion point set as target proportion points;

acquiring the current temperature of the passenger compartment as the temperature to be evaluated;

subtracting the actual temperature of the target evaporator from the temperature to be evaluated to obtain an actual virtual temperature difference;

multiplying the target proportion point by the target virtual temperature difference to obtain an evaporator temperature drop value;

if the actual virtual temperature difference is not equal to the evaporator temperature drop value, the step of obtaining the current passenger compartment temperature as the temperature to be evaluated is repeatedly executed;

and if the actual virtual temperature difference is equal to the evaporator temperature drop value, controlling the air conditioner of the new energy automobile to drop the cold air volume by adopting the cold air volume drop corresponding to the target proportion point, adding 1 to the counter, and repeatedly executing the step of acquiring the drop proportion points with the same sequence number as the counter from the drop proportion point set as the target proportion points until the counter is larger than the number of the drop proportion points in the drop proportion point set.

Further, after the step of controlling the new energy automobile air conditioner according to the target evaporator actual temperature, the initial passenger compartment temperature, the initial cold air volume and the target cold air volume and a preset cold air volume reduction strategy, the method comprises the following steps of:

and if the interval time between the generation time of the initial change signal and the current time exceeds a preset time and the current temperature of the passenger compartment is less than a preset temperature, setting the cold air volume of the new energy automobile air conditioner as the target cold air volume.

The application still provides a new energy automobile air conditioner's refrigeration controlling means, its characterized in that, the device includes:

the signal acquisition module is used for acquiring an initial change signal of the refrigeration control initial zone bit;

the initial cold air volume determining module is used for responding to the initial change signal and calculating initial cold air volume according to the acquired initial environment temperature, set temperature, strong light judgment result, sultry judgment result and initial passenger compartment temperature, wherein the initial passenger compartment temperature is calculated according to the actual temperature of the initial evaporator and the initial environment temperature;

the target cold air quantity determining module is used for calculating a target cold air quantity according to the initial environment temperature, the set temperature, the strong light judgment result and the sultry judgment result;

the target evaporator actual temperature determining module is used for searching the evaporator temperature from a preset evaporator temperature mapping table according to the initial environment temperature and the set temperature and taking the evaporator temperature as the target evaporator actual temperature;

and the control module is used for controlling the new energy automobile air conditioner according to a preset cold air quantity reduction strategy according to the target evaporator actual temperature, the initial passenger compartment temperature, the initial cold air quantity and the target cold air quantity.

The present application further provides a computer device comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of:

acquiring an initial change signal of a refrigeration control initial zone bit;

according to the initial environment temperature and the set temperature, the evaporator temperature is searched from a preset evaporator temperature mapping table to be used as the actual temperature of the target evaporator;

and controlling the new energy automobile air conditioner according to a preset cold air volume reduction strategy according to the actual temperature of the target evaporator, the initial passenger compartment temperature, the initial cold air volume and the target cold air volume.

The present application further provides a computer readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of:

acquiring an initial change signal of a refrigeration control initial zone bit;

The application discloses new energy automobile air conditioner's refrigeration control method, through according to the initial ambient temperature who acquires, set for the temperature, the high light judgments, sultry judgments and initial passenger cabin temperature, calculate initial cold wind volume, according to initial ambient temperature set for the temperature the high light judgments with sultry judgments, calculate target cold wind volume, according to initial ambient temperature with set for the temperature, seek the evaporimeter temperature from preset evaporimeter temperature mapping table, as target evaporimeter actual temperature, according to target evaporimeter actual temperature initial passenger cabin temperature initial cold wind volume with target cold wind volume is controlled new energy automobile air conditioner according to predetermined cold wind volume decline strategy to realized refrigeration automatic mode, whole process only needs the detection data of these two sensors of evaporimeter temperature sensor and ambient temperature sensor, because of evaporimeter temperature sensor and ambient temperature sensor are the indispensable sensor of car, made this application be applicable to the low price motorcycle type, improved the travelling comfort of low price motorcycle type.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Wherein:

fig. 1 is a flowchart of a refrigeration control method of a new energy vehicle air conditioner in an embodiment;

fig. 2 is a block diagram of a refrigeration control device of a new energy vehicle air conditioner in one embodiment;

FIG. 3 is a block diagram of a computer device in one embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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.

As shown in fig. 1, in one embodiment, a refrigeration control method for a new energy vehicle air conditioner is provided, the method including:

s1: acquiring an initial change signal of a refrigeration control initial zone bit;

specifically, the trigger conditions for the initial change signal include: the new energy automobile state is that the air conditioner can be started, the new energy automobile is in a refrigeration working condition, and a user starts a refrigeration automatic mode.

The new energy automobile is in a state that the air conditioner can be started, which means that the air conditioner of the new energy automobile is high-voltage and has no fault.

The new energy automobile is in a refrigeration working condition, which means that a user sets a desired temperature (namely, a set temperature).

It is understood that, after entering the automatic cooling mode (i.e. AUTO mode), the AC (i.e. compressor start-up enabling switch) is actively turned on immediately, the air is cut off, the air blowing surface is blown, and the cold air volume is actively controlled in the later time, wherein the AC lighting means that the compressor is allowed to be turned on, and the AC is turned on by default in summer, or the AC can be turned off manually. When the AC is lightened, the compressor is not started necessarily; when the AC is not lit, the compressor must not start.

The refrigerating system of the new energy automobile comprises a compressor, an air conditioning pipe, a condenser, an expansion valve and an evaporator, and the refrigerating system is a refrigerating system which realizes a refrigerating function in a refrigerating automatic mode.

It is understood that the cooling control start flag in AUTO mode is set from 0 to 1 or reset each time, which means that the cooling air amount needs to be re-planned and judged, and therefore, the start change signal is generated each time the cooling control start flag in AUTO mode is set from 0 to 1 or reset.

When the temperature control device is in the automatic refrigeration mode, a user reduces the set temperature, and when the set temperature is adjusted to be less than or equal to 25 ℃, the user feels not cool enough, at the moment, an initial change signal of the initial flag bit of the refrigeration control needs to be activated once, so that a new initial cold air volume is recalculated, and then the new initial cold air volume is at least one grade larger than the cold air volume before the temperature adjustment.

When the temperature control device is in the automatic refrigeration mode, a user increases the set temperature, and the set temperature is adjusted to be more than or equal to 25 ℃, which means that the user feels cool, at this time, an initial change signal of the initial flag bit of the refrigeration control needs to be activated once to recalculate a new initial cold air volume, and then the new initial cold air volume is at least one grade smaller than the cold air volume of the user before the temperature adjustment.

S2: responding to the initial change signal, and calculating initial cold air volume according to the obtained initial environment temperature, set temperature, strong light judgment result, sultry judgment result and initial passenger compartment temperature, wherein the initial passenger compartment temperature is calculated according to the actual temperature of an initial evaporator and the initial environment temperature;

specifically, when the initial change signal is obtained, an initial environment temperature, a set temperature, a strong light judgment result, a sultry judgment result and an initial passenger compartment temperature are obtained; and calculating the initial cold air flow according to a preset initial cold air flow calculation formula, the initial environment temperature, the set temperature, the strong light judgment result, the sultry judgment result and the initial passenger compartment temperature.

The initial ambient temperature is the ambient temperature around the vehicle when the start change signal is acquired.

The initial ambient temperature is acquired by the ECU, and an NTC (negative temperature coefficient) type temperature sensor (i.e., an ambient temperature sensor) is generally placed on a radiator grid of the new energy automobile to detect the temperature of the surrounding environment of the new energy automobile.

The ECU refers to a controller that realizes an air conditioning function.

And the initial passenger compartment temperature is obtained in real time according to the initial change signal, and is calculated according to the obtained actual evaporator temperature. That is, the initial passenger compartment temperature is a simulated temperature of the passenger compartment.

The actual evaporator temperature is the actual evaporator temperature collected by the ECU, and an NTC-type temperature sensor is generally placed on the evaporator of the new energy vehicle, and the ECU determines the actual evaporator temperature according to the data collected by the NTC-type temperature sensor (i.e., the evaporator temperature sensor).

It can be understood that the actual temperature of the evaporator will decrease relatively quickly after the air conditioner is turned on, and the actual temperature of the passenger compartment cannot be represented, and after the compressor is turned on, the virtual temperature of the evaporator decreases much slower than the actual temperature of the evaporator, so that the initial passenger compartment temperature is used to represent the actual temperature of the passenger compartment.

When the automobile air conditioner is used for refrigerating in summer, the actual temperature of the evaporator is generally 2-4 ℃ lower than the air outlet temperature of the passenger cabin, the actual temperature of the evaporator can basically represent the temperature of an air outlet of the passenger cabin, the temperature of the air outlet is different from the temperature of the passenger cabin, the air outlet can be quite cool, and the whole automobile is still quite hot. The sensor for detecting the actual evaporator temperature must be located in the passenger compartment, so that the corrected actual evaporator temperature can be used to characterize the actual passenger compartment temperature.

The set temperature has a factory setting value, and can be adjusted by a user.

And the strong illumination judgment result is data determined according to the initial environment temperature and the set temperature and is used for expressing whether the new energy automobile air conditioner is in the daytime with strong illumination or in the sweltering daytime.

The sultriness judgment result is data determined according to the initial environment temperature and the set temperature and is used for expressing whether the new energy automobile air conditioner is in the night which is not very sultriness.

S3: calculating a target cold air volume according to the initial environment temperature, the set temperature, the strong light judgment result and the sultry judgment result;

specifically, the target cold air volume is calculated according to a preset target cold air volume calculation formula, the initial environment temperature, the set temperature, the strong light judgment result and the sultry judgment result.

S4: according to the initial environment temperature and the set temperature, the evaporator temperature is searched from a preset evaporator temperature mapping table and is used as the actual temperature of the target evaporator;

specifically, the evaporator actual temperature map may be previously tested and calibrated. The evaporator actual temperature mapping table comprises: ambient temperature, set temperature, and evaporator actual temperature.

Because the actual temperature of the evaporator is a variable value, the actual temperature of the target evaporator is used as a control variable to adjust the rotating speed of the compressor in a closed loop manner, so that the actual temperature of the evaporator in real time is quickly close to the actual temperature of the target evaporator and is finally maintained near the actual temperature of the target evaporator.

S5: and controlling the new energy automobile air conditioner according to a preset cold air quantity reduction strategy according to the actual temperature of the target evaporator, the initial passenger compartment temperature, the initial cold air quantity and the target cold air quantity.

Specifically, according to the target evaporator actual temperature, the initial passenger compartment temperature, the initial cold air volume and the target cold air volume, the new energy automobile air conditioner is subjected to stepped cold air volume reduction control according to a preset cold air volume reduction strategy, so that the real-time evaporator actual temperature of the new energy automobile air conditioner is maintained near the target evaporator actual temperature. Through cascaded cold wind volume decline control, the time of the cold wind volume after the passenger adaptation adjustment of giving passenger cabin has further improved the travelling comfort.

New energy automobile air conditioner, that is new energy automobile's air conditioner.

The starting cold air volume and the target cold air volume consider the external environment condition of the new energy automobile and the requirement of a driver on refrigeration, and also consider the approximate temperature of the passenger compartment when the refrigeration automatic mode is started.

Refrigeration automatic mode begins the back, and the cold wind volume will be followed gradually the originated cold wind volume falls to the target cold wind volume, the decline of the virtual temperature of follow evaporimeter of the decline of cold wind volume. The passenger cabin temperature is quickly reduced through medium and large cooling air quantities, and then the medium and small cooling air quantities are maintained to keep the comfort of the passenger cabin.

This embodiment is through according to the initial ambient temperature who acquires, set for temperature, strong light judgments, sultry judgments and initial passenger cabin temperature, calculates originated cold wind volume, according to initial ambient temperature set for the temperature strong light judgments with sultry judgments calculate the target cold wind volume, according to initial ambient temperature with set for the temperature, seek the evaporimeter temperature from preset evaporimeter temperature mapping table, as target evaporimeter actual temperature, according to target evaporimeter actual temperature initial passenger cabin temperature the originated cold wind volume with the target cold wind volume is controlled new energy automobile air conditioner according to predetermined cold wind volume decline strategy to realized refrigeration automatic mode, whole process only need the detection data of these two sensors of evaporimeter temperature sensor and ambient temperature sensor, because of evaporimeter temperature sensor and ambient temperature sensor are the indispensable sensor of car, made this application be applicable to the low price motorcycle type, improved the travelling comfort of low price motorcycle type.

In an embodiment, the step of calculating the initial amount of cold air according to the obtained initial ambient temperature, the set temperature, the result of judging strong light, the result of judging stuffiness, and the initial temperature of the passenger compartment in response to the initial change signal includes:

s211: responding to the initial change signal, and acquiring the actual temperature of the initial evaporator and the initial environment temperature;

and when the initial change signal is received, taking the current actual evaporator temperature as the initial actual evaporator temperature and taking the current environment temperature as the initial environment temperature.

S212: if the initial evaporator actual temperature is greater than or equal to the initial environment temperature, dividing the initial evaporator actual temperature by the initial environment temperature to obtain a first ratio, inputting the first ratio into a preset first regulation formula to obtain a first coefficient, and multiplying the initial evaporator actual temperature by the first coefficientObtaining an initial evaporator virtual temperature, wherein the first adjustment formula is expressed as: log of _a1 (X ₁ +b)+c，0<a1<1, b, c are predetermined constants, log is a logarithmic function, X ₁ Is the first ratio;

specifically, if the initial evaporator actual temperature is greater than or equal to the initial ambient temperature, this means that the temperature in the passenger compartment is significantly higher than the ambient temperature around the vehicle due to heat accumulation in the vehicle interior, and therefore, a temperature close to the initial evaporator actual temperature is taken as the initial evaporator virtual temperature. That is, the initial evaporator virtual temperature at this time is greater than the initial ambient temperature.

a1, b, c can be set according to experiments.

S213: if the initial evaporator actual temperature is less than the initial ambient temperature, and the initial evaporator actual temperature is greater than or equal to a difference obtained by subtracting a preset temperature threshold from the initial ambient temperature, dividing the initial ambient temperature by the initial evaporator actual temperature to obtain a second ratio, inputting the second ratio into a preset second adjustment formula to obtain a second coefficient, and multiplying the initial ambient temperature by the second coefficient to obtain the initial evaporator virtual temperature, wherein the second adjustment formula is expressed as: log (log) _a2 (X ₂ +d)+e，0<a2<1, d, e are predetermined constants, X ₂ Is said second ratio;

specifically, if the initial evaporator actual temperature is less than the initial ambient temperature, and the initial evaporator actual temperature is greater than or equal to a difference obtained by subtracting a preset temperature threshold from the initial ambient temperature, that is, the initial evaporator actual temperature is within a certain range of the initial ambient temperature, the temperature of the passenger compartment is relatively close to the vehicle ambient temperature, and therefore, the temperature close to the initial ambient temperature is taken as the initial evaporator virtual temperature. That is, the initial evaporator virtual temperature at this time is greater than the initial evaporator actual temperature.

It will be appreciated that the predetermined temperature threshold may be experimentally calibrated.

a2, d, e can be set experimentally.

S214: if the initial evaporator actual temperature is less than the difference value obtained by subtracting the temperature threshold value from the initial environment temperature, calculating the initial evaporator virtual temperature according to a preset correction formula, the initial evaporator actual temperature and the initial environment temperature, wherein the correction formula is as follows: tevap + k (Tamb-Tevap), tevap being the initial evaporator actual temperature, tamb being the initial ambient temperature, k = f/(g + (Tamb-Tevap)), f, g being preset constants;

f. g can be set according to experiments.

S215: taking the initial evaporator virtual temperature as the initial passenger compartment temperature;

since the sensor for detecting the actual temperature of the evaporator is always in the passenger compartment, the actual temperature of the evaporator will decrease rapidly after the air conditioner is turned on, and the temperature of the passenger compartment cannot be directly represented, and the corrected actual temperature of the evaporator can be used for representing the temperature of the passenger compartment, the initial virtual temperature of the evaporator can be used as the initial temperature of the passenger compartment.

S216: acquiring the set temperature, the strong light judgment result and the sultry judgment result;

s217: and calculating the initial cold air volume according to the initial environment temperature, the set temperature, the strong light judgment result, the sultriness judgment result and the initial passenger compartment temperature.

In the embodiment, the initial virtual evaporator temperature is calculated according to the initial actual evaporator temperature and the initial environment temperature, and the initial virtual evaporator temperature is used as the initial passenger compartment temperature, so that the fact that the corrected initial actual evaporator temperature represents the actual passenger compartment temperature is realized, and a basis is provided for realizing the automatic refrigeration mode in a low-price vehicle type.

In an embodiment, the step of obtaining the initial ambient temperature, the set temperature, the strong light determination result, and the sultry determination result includes:

s2131: calculating a strong illumination judgment result according to a preset strong illumination judgment condition, the current time, the initial environment temperature and the set temperature, wherein the strong illumination judgment result is used for expressing whether the new energy automobile air conditioner is in a strong illumination day or a sultry day;

specifically, the strong light determination condition includes: a first time condition and a first temperature condition. And if the first time condition and the first temperature condition are both met, determining that the high-light judgment result is met, otherwise, determining that the high-light judgment result is not met.

The first time condition is that the current time is within a first time range. Optionally, the first time range is set to 11 am to 6 pm.

The first temperature condition is: the initial ambient temperature is greater than the first temperature and the set temperature is an arbitrary value, or the initial ambient temperature is greater than the second temperature and the set temperature is less than or equal to the third temperature. The first temperature is greater than the second temperature, which is greater than the third temperature.

Alternatively, the first temperature is set to 36 ℃, the second temperature is set to 31 ℃, and the third temperature is set to 23 ℃.

And if the real-time environment temperature is reduced to the fourth temperature, setting the result value of the first temperature condition as 0. Optionally, the fourth temperature is set to 34 ℃. For example, if the real-time ambient temperature is decreased to 34 ℃ for an initial ambient temperature greater than 36 ℃ and the set temperature is an arbitrary value, the result value of the first temperature condition is set to 0, which means that the first temperature condition is not satisfied.

If the initial ambient temperature is lower than the fifth temperature, the result value of the first temperature condition is set to 0. Optionally, the fifth temperature is set to 29 ℃. For example, if the initial ambient temperature is greater than 31 ℃ and the set temperature is less than or equal to 23 ℃, and the initial ambient temperature is decreased to 29 ℃, the result value of the first temperature condition is set to 0, which means that the first temperature condition is not satisfied.

S2132: and calculating the sultriness judgment result according to a preset sultriness judgment condition, the current time, the initial environment temperature and the set temperature, wherein the sultriness judgment result is used for expressing whether the new energy automobile air conditioner is in the night which is not very sultriness.

Specifically, the stuffiness judgment conditions include: a second time condition and a second temperature condition. And if the second time condition and the second temperature condition are both satisfied, determining that the sultriness judgment result is satisfied, otherwise, determining that the sultriness judgment result is not satisfied.

The second time condition is that the current time is within the first time range. Optionally, the first time range is set to 8 pm to 12 pm and 0 am to 11 am.

The second temperature condition is: the ambient temperature is not higher than the sixth temperature and the set temperature is an arbitrary value.

Optionally, the sixth temperature is set to 35 ℃.

This embodiment is through based on the current time initial ambient temperature with the temperature setting is confirmed the intense light judgments result sultry judgments result, for the calculation initial cold wind volume with the target cold wind volume provides the basis, and whole process has adopted initial ambient temperature moreover, and consequently, this embodiment is applicable to the low price motorcycle type.

In an embodiment, the step of calculating the initial amount of cold air according to the obtained initial ambient temperature, the set temperature, the strong light determination result, the sultry determination result, and the initial passenger compartment temperature includes:

s221: according to the initial environment temperature, searching a first basic cold air volume from a preset first mapping table;

the first mapping table includes: first scope and basic cold wind volume. The basic cold air volume can be the cold air volume grade, also can be the concrete value of cold air volume. Wherein, the cold air volume grade is higher, and the cold air volume is bigger.

Specifically, a first range including the initial ambient temperature in the first mapping table is used as a first hit range, and a basic cold air volume corresponding to the first hit range in the first mapping table is used as a first basic cold air volume.

It can be understood that the first range and the basic cooling air amount in the first mapping table may be calibrated according to actual experimental results, and data experimentally calibrated for different spaces and/or different refrigeration systems may be different or the same.

Optionally, when the first range is greater than or equal to 35 ℃, the basic cold air volume is 6 grades of cold air volume (i.e. cold air volume grade); the first range is greater than or equal to 32 ℃, and when the temperature is less than 35 ℃, the basic cold air volume is 5 grades of cold air volume; the first range is more than or equal to 30 ℃, and when the temperature is less than 32 ℃, the basic cold air volume is 4 grades of cold air volume; the first range is greater than or equal to 28 ℃, and when the temperature is less than 30 ℃, the basic cold air volume is 4 grades of cold air volume; the first range is more than or equal to 25 ℃, and when the temperature is less than 28 ℃, the basic cold air volume is 3 grades of cold air volume; when the first range is more than or equal to 25 ℃, the basic cold air volume is 2 grades of cold air volumes.

S222: according to the initial passenger compartment temperature, searching a first cold air amount supplement value from a preset second mapping table;

the second mapping table includes: the second range and the compensation cold air quantity. The compensation cold air volume can be the cold air volume grade, also can be the concrete value of cold air volume.

Specifically, a second range containing the initial passenger compartment temperature in the second mapping table is used as a second hit range, and a compensation cold air volume corresponding to the second hit range in the second mapping table is used as a first cold air volume supplement value.

It can be understood that the second range and the compensation cooling air amount in the second mapping table may be calibrated according to actual experimental results, and data calibrated by experiments performed on different spaces and/or different refrigeration systems may be different or the same.

Optionally, when the second range is greater than or equal to 22 ℃, the compensation cold air volume is 0 grade of cold air volume; the second range is more than or equal to 13 ℃, and when the temperature is less than 22 ℃, the compensation cold air volume is 0 grade of cold air volume; when the second range is less than 13 ℃, the compensation cold air volume is minus 1 grade of cold air volume. 1 grade of cold air quantity, namely subtracting a grade of cold air quantity.

S223: according to the set temperature, searching a second cold air amount supplement value from a preset third mapping table;

the third mapping table includes: the third range and the compensation cold air quantity.

Specifically, a third range including the set temperature in the third mapping table is used as a third hit range, and a compensation cold air volume corresponding to the third hit range in the third mapping table is used as a second cold air volume supplement value.

Optionally, when the third range is greater than or equal to 27 ℃, the compensation cold air volume is-1 grade of cold air volume; the third range is more than or equal to 20 ℃, and when the temperature is less than 27 ℃, the compensation cold air volume is 0 grade of cold air volume; and when the third range is less than 20 ℃, the compensation cold air volume is 1 grade of cold air volume.

S224: according to the strong illumination judgment result, searching a third cold air quantity supplement value from a preset fourth mapping table;

specifically, if the strong light judgment result is satisfied, the third cold air flow supplement value is 1 grade of cold air flow; and if the strong light judgment result is not satisfied, supplementing and charging the third cold air quantity to be 0 grade of cold air quantity.

S225: according to the difference value between the set temperature and the initial environment temperature, a fourth cold air amount supplement value is searched from a preset fifth mapping table;

specifically, if the difference value obtained by subtracting the initial environment temperature from the set temperature is less than or equal to a first preset temperature, the fourth cold air volume supplementary value is 0 grade of cold air volume; and if the difference value obtained by subtracting the initial environment temperature from the set temperature is greater than a first preset temperature, supplementing and charging the fourth cold air quantity to-1 grade of cold air quantity.

S226: according to the sultry judgment result, searching a sixth cold air flow supplement value from a preset seventh mapping table;

specifically, if the sultry judgment result is satisfied, the sixth cold air flow supplement value is-1 grade cold air flow; and if the result of the sultry judgment is not satisfied, the sixth cold air volume supplement value is 0 grade of cold air volume.

S227: and correcting the first basic cold air flow according to the first cold air flow supplement value, the second cold air flow supplement value, the third cold air flow supplement value, the fourth cold air flow supplement value and the sixth cold air flow supplement value to obtain the initial cold air flow.

Specifically, the first basic cold air flow, the first cold air flow supplement value, the second cold air flow supplement value, the third cold air flow supplement value, the fourth cold air flow supplement value and the sixth cold air flow supplement value are added, and data obtained by adding are used as the initial cold air flow.

Optionally, the initial cold air volume is greater than or equal to the minimum basic cold air volume in the first mapping table, and the initial cold air volume is less than or equal to the maximum basic cold air volume in the first mapping table. Thereby facilitating increased comfort in the passenger compartment.

The cold air volume supplement value is determined based on the set temperature, the strong light judgment result, the sultriness judgment result and the initial passenger compartment temperature, and then the first basic cold air volume determined based on the initial environment temperature is corrected by adopting the cold air volume supplement value of each factor, so that the initial environment temperature, the set temperature, the strong light judgment result, the sultriness judgment result and the initial passenger compartment temperature are comprehensively considered, and the accuracy of the determined initial cold air volume is improved.

In an embodiment, the step of calculating a target cold air volume according to the initial environment temperature, the set temperature, the strong light judgment result, and the sultry judgment result includes:

s31: according to the initial environment temperature, searching a second basic cold air volume from a preset eighth mapping table, wherein the second basic cold air volume is smaller than the first basic cold air volume;

the eighth mapping table includes: eighth scope and basic cold wind volume.

Specifically, an eighth range, which includes the initial ambient temperature, in the eighth mapping table is used as an eighth hit range, and a basic cool air volume, which corresponds to the eighth hit range in the eighth mapping table, is used as a second basic cool air volume.

It can be understood that the eighth range and the basic cool air amount in the eighth mapping table may be calibrated according to actual experimental results, and data calibrated by experiments performed on different spaces and/or different refrigeration systems may be different or the same.

Optionally, when the eighth range is greater than or equal to 35 ℃, the basic cold air volume is 4 grades of cold air volume; the eighth range is greater than or equal to 32 ℃, and when the temperature is less than 35 ℃, the basic cold air volume is 4 grades of cold air volume; the eighth range is more than or equal to 30 ℃, and when the temperature is less than 32 ℃, the basic cold air volume is 3 grades of cold air volume; the eighth range is greater than or equal to 28 ℃, and when the temperature is less than 30 ℃, the basic cold air volume is 3 grades of cold air volume; the eighth range is greater than or equal to 25 ℃, and when the temperature is less than 28 ℃, the basic cold air volume is 2 grades of cold air volume; and when the eighth range is greater than or equal to 25 ℃, the basic cold air volume is 1 grade of cold air volume.

S32: searching a seventh cold air amount supplement value from a preset ninth mapping table according to the set temperature;

the ninth mapping table includes: ninth scope and compensation cold wind volume.

Specifically, a ninth range including the set temperature in the ninth mapping table is used as a ninth hit range, and the compensation cold air volume corresponding to the ninth hit range in the ninth mapping table is used as a seventh cold air volume supplement value.

It can be understood that the ninth range and the compensation cooling air amount in the ninth mapping table may be calibrated according to actual experimental results, and data calibrated by experiments performed on different spaces and/or different refrigeration systems may be different or the same.

Optionally, when the ninth range is greater than or equal to 27 ℃, the compensation cold air volume is-1 grade of cold air volume; the ninth range is more than or equal to 20 ℃, and when the temperature is less than 27 ℃, the compensation cold air volume is 0 grade of cold air volume; and when the ninth range is less than 20 ℃, the compensation cold air volume is 1 grade of cold air volume.

S33: searching for an eighth cold air amount supplement value from a preset tenth mapping table according to the strong illumination judgment result;

specifically, if the strong light judgment result is satisfied, the eighth cold air amount supplementary value is 1 grade of cold air amount; and if the strong illumination judgment result is that the strong illumination judgment result is not satisfied, the eighth cold air quantity supplement value is 0 grade of cold air quantity.

S34: according to the difference value between the set temperature and the initial environment temperature, a ninth cold air quantity supplement value is searched from a preset eleventh mapping table;

specifically, if the difference value obtained by subtracting the initial environment temperature from the set temperature is less than or equal to a second preset temperature, the ninth cold air volume supplement value is 0 grade of cold air volume; and if the difference value obtained by subtracting the initial environment temperature from the set temperature is greater than a second preset temperature, supplementing and charging the ninth cold air quantity to be-1 grade of cold air quantity.

S35: according to the sultry judgment result, searching for an eleventh cold air flow supplement value from a preset thirteenth mapping table;

specifically, if the sultry judgment result is satisfied, the eleventh cold air flow supplement value is-1 grade cold air flow; and if the stuffiness judgment result is not satisfied, supplementing and charging the eleventh cold air quantity to be 0 grade of cold air quantity.

S36: and correcting the second basic cold air flow according to the seventh cold air flow supplement value, the eighth cold air flow supplement value, the ninth cold air flow supplement value and the eleventh cold air flow supplement value to obtain the target cold air flow.

Specifically, the second basic cold air flow, the seventh cold air flow supplement value, the eighth cold air flow supplement value, the ninth cold air flow supplement value, and the eleventh cold air flow supplement value are added, and data obtained by adding the values are used as the target cold air flow.

The cold air volume supplement value is determined based on the set temperature, the strong light judgment result and the sultry judgment result, then the cold air volume supplement value of each factor is adopted to correct the second basic cold air volume determined based on the initial environment temperature, so that the initial environment temperature, the set temperature, the strong light judgment result and the sultry judgment result are comprehensively considered, and the accuracy of the determined target cold air volume is improved.

In an embodiment, the step of controlling the new energy vehicle air conditioner according to the target evaporator actual temperature, the initial passenger compartment temperature, the initial cold air volume, and the target cold air volume and according to a preset cold air volume reduction strategy includes:

s51: adjusting the cold air volume of the new energy automobile air conditioner to the initial cold air volume by adopting a preset starting cold air volume adjusting strategy to obtain a descending signal;

particularly, when getting on bus and just opening refrigeration automatic mode, new energy automobile air conditioner can be quick blows cold wind, until reaching the originated cold wind volume, then slowly reduce the cold wind volume again to realize quick cooling and the cold wind volume reduces the effect to the passenger is noninductive. Therefore, start the mode that cold wind volume adjustment strategy adopted straight-line rising, in order with new energy automobile air conditioner's cold wind volume quick adjustment arrives initial cold wind volume, work as new energy automobile air conditioner's cold wind volume is adjusted during initial cold wind volume, the generation decline signal. And the whole process time of quickly adjusting the cold air volume of the new energy automobile air conditioner to the initial cold air volume is very short.

S52: in response to the falling signal, subtracting the target evaporator actual temperature from the initial passenger compartment temperature to obtain a target virtual temperature difference;

s53: subtracting the initial cold air quantity from the target cold air quantity to obtain a cold air quantity difference value, and searching a descending proportion point set from a preset fourteenth mapping table according to the cold air quantity difference value, wherein each descending proportion point in the descending proportion point set is arranged in a descending order;

the fourteenth mapping table includes: a range of difference values and a set of scale points.

Specifically, the difference range including the cold air flow difference value is searched from a fourteenth mapping table, the searched difference range is used as a hit difference range, and a corresponding proportion point set of the hit difference range in the fourteenth mapping table is used as a descending proportion point set.

S54: acquiring a counter, and initializing the counter to be 1;

s55: acquiring the descending proportion points with the same sequencing sequence number as the counter from the descending proportion point set as target proportion points;

s56: acquiring the current temperature of the passenger compartment as the temperature to be evaluated;

specifically, the current evaporator actual temperature and the current ambient temperature are acquired, the evaporator virtual temperature is calculated according to the acquired current evaporator actual temperature and the current ambient temperature, and the calculated evaporator virtual temperature is taken as the current passenger compartment temperature. The calculation method of the current passenger compartment temperature may refer to steps S212 to S214.

S57: subtracting the actual temperature of the target evaporator from the temperature to be evaluated to obtain an actual virtual temperature difference;

s58: multiplying the target proportion point by the target virtual temperature difference to obtain an evaporator temperature drop value;

s59: if the actual virtual temperature difference is not equal to the evaporator temperature drop value, the step of obtaining the current temperature of the passenger compartment as the temperature to be evaluated is executed repeatedly;

specifically, if the actual virtual temperature difference is not equal to the evaporator temperature drop value, it means that the cold air volume does not need to be adjusted, and therefore, the step of obtaining the current temperature of the passenger compartment as the temperature to be evaluated is repeatedly executed; the step of obtaining the current passenger compartment temperature as the temperature to be evaluated is repeatedly performed, that is, the steps S56 to S510 are repeatedly performed.

S510: and if the actual virtual temperature difference is equal to the evaporator temperature drop value, controlling the air conditioner of the new energy automobile to drop the cold air volume by adopting the cold air volume drop corresponding to the target proportion point, adding 1 to the counter, and repeatedly executing the step of acquiring the drop proportion points with the same sequence number as the counter from the drop proportion point set as the target proportion points until the counter is larger than the number of the drop proportion points in the drop proportion point set.

Specifically, if the actual virtual temperature difference is equal to the evaporator temperature drop value, it means that the amount of cold air needs to be adjusted, so that the amount of cold air dropped corresponding to the target proportion point is adopted to control the new energy automobile air conditioner to drop the amount of cold air, so as to reduce the amount of cold air; incrementing the counter by 1 for obtaining a next down proportion point; repeatedly executing the step of acquiring the descending proportion points with the same sequence number as the counter from the descending proportion point set as target proportion points, namely repeatedly executing the steps S55 to S510 until the counter is greater than the number of the descending proportion points in the descending proportion point set; if the counter is greater than the number of the descending proportion points in the descending proportion point set, the cold air volume does not need to be adjusted, and therefore the circulation is finished.

The control method has the advantages that the control of the new energy automobile air conditioner based on the initial cold air quantity and the target cold air quantity determined by the detection data of the evaporator temperature sensor and the environment temperature sensor is realized, so that the refrigeration automatic mode is realized, the detection data of the evaporator temperature sensor and the environment temperature sensor are only needed in the whole process, and the evaporator temperature sensor and the environment temperature sensor are automobile essential sensors, so that the control method is suitable for low-price automobile models and improves the comfort of the low-price automobile models; the cold air volume of the new energy automobile air conditioner is adjusted to the initial cold air volume by adopting a preset starting cold air volume adjusting strategy to obtain a descending signal, so that the effect of rapid cooling is realized, and the comfort degree is improved; the step-type cold air volume reduction is realized based on the reduction proportion point set, the time adaptive to the cold air volume is provided for passengers, and the comfort degree of the passengers is improved.

In an embodiment, after the step of controlling the new energy vehicle air conditioner according to the target evaporator actual temperature, the initial passenger compartment temperature, the initial cold air volume, and the target cold air volume and according to a preset cold air volume reduction strategy, the method includes:

s6: and if the interval time between the generation time of the initial change signal and the current time exceeds the preset time and the current temperature of the passenger compartment is less than the preset temperature, setting the cold air volume of the new energy automobile air conditioner as the target cold air volume.

Specifically, if the interval duration between the generation time of the initial change signal and the current time exceeds a preset duration and the current passenger compartment temperature is less than a preset temperature, at this time, it means that the cold air volume of the new energy vehicle air conditioner is not adjusted to the target cold air volume within the preset duration, and therefore, the cold air volume of the new energy vehicle air conditioner is set to the target cold air volume to realize forced adjustment to the target cold air volume.

In order to avoid the unusual messenger of cold wind volume adjustment because of reasons such as trouble lead to can't reach as expected the target cold wind volume, this embodiment will not in the time of presetting new energy automobile air conditioner's cold wind volume is adjusted during the target cold wind volume, the compulsory adjustment arrives the target cold wind volume has improved user experience.

As shown in fig. 2, in one embodiment, there is provided a refrigeration control device for a new energy vehicle air conditioner, the device including:

a signal acquiring module 801, configured to acquire an initial change signal of an initial flag of refrigeration control;

an initial cold air volume determining module 802, configured to respond to the initial change signal, and calculate an initial cold air volume according to the obtained initial environment temperature, a set temperature, a strong light determination result, a sultry determination result, and an initial passenger cabin temperature, where the initial passenger cabin temperature is a temperature calculated according to an initial evaporator actual temperature and the initial environment temperature;

a target cold air volume determining module 803, configured to calculate a target cold air volume according to the initial environment temperature, the set temperature, the strong light determination result, and the sultry determination result;

a target evaporator actual temperature determining module 804, configured to search, according to the initial environment temperature and the set temperature, an evaporator temperature from a preset evaporator temperature mapping table, as a target evaporator actual temperature;

and the control module 805 is configured to control the new energy automobile air conditioner according to a preset cold air volume reduction strategy according to the target evaporator actual temperature, the initial passenger compartment temperature, the initial cold air volume and the target cold air volume.

This embodiment is through according to the initial ambient temperature who acquires, set for the temperature, the highlight judgement result, sultry judgement result and initial passenger cabin temperature, calculate the initial cold air volume, according to initial ambient temperature set for the temperature the highlight judgement result with sultry judgement result calculates the target cold air volume, according to initial ambient temperature with set for the temperature, seek the evaporimeter temperature from the evaporimeter temperature mapping table that predetermines, as target evaporimeter actual temperature, according to target evaporimeter actual temperature initial passenger cabin temperature the initial cold air volume with the target cold air volume is controlled new energy automobile air conditioner according to predetermined cold air volume decline strategy to realized refrigeration automatic mode, whole process only needs the detected data of these two sensors of evaporimeter temperature sensor and ambient temperature sensor, because of evaporimeter temperature sensor and ambient temperature sensor are the indispensable sensor of car, made this application be applicable to the low price motorcycle type, improved the travelling comfort of low price motorcycle type.

FIG. 3 is a diagram that illustrates an internal structure of the computer device in one embodiment. The computer device may specifically be a terminal, and may also be a server. As shown in fig. 3, the computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the memory includes a non-volatile storage medium and an internal memory. The nonvolatile storage medium of the computer device stores an operating system and also stores a computer program, and when the computer program is executed by a processor, the processor can realize the refrigeration control method of the new energy automobile air conditioner. The internal memory can also store a computer program, and when the computer program is executed by the processor, the processor can execute the refrigeration control method of the new energy automobile air conditioner. Those skilled in the art will appreciate that the architecture shown in fig. 3 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, a computer device is proposed, comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of:

acquiring an initial change signal of a refrigeration control initial zone bit;

In one embodiment, a computer-readable storage medium is proposed, in which a computer program is stored which, when executed by a processor, causes the processor to carry out the steps of:

acquiring an initial change signal of a refrigeration control initial zone bit;

responding to the initial change signal, and calculating initial cold air volume according to the obtained initial environment temperature, set temperature, strong light judgment result, sultriness judgment result and initial passenger compartment temperature, wherein the initial passenger compartment temperature is calculated according to the actual temperature of an initial evaporator and the initial environment temperature;

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above may be implemented by a computer program, which may be stored in a non-volatile computer readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), rambus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.

Claims

1. A refrigeration control method of a new energy automobile air conditioner comprises the following steps:

acquiring an initial change signal of a refrigeration control initial zone bit;

2. The refrigeration control method of the new energy automobile air conditioner as claimed in claim 1, wherein the step of calculating the initial cold air volume according to the acquired initial ambient temperature, the set temperature, the strong light judgment result, the sultry judgment result and the initial passenger compartment temperature in response to the initial change signal comprises:

responding to the initial change signal, and acquiring the initial evaporator actual temperature and the initial environment temperature;

if the initial evaporator actual temperature is greater than or equal to the initial environment temperature, dividing the initial evaporator actual temperature by the initial environment temperature to obtain a first ratio, inputting the first ratio into a preset first adjustment formula to obtain a first coefficient, and multiplying the initial evaporator actual temperature by the first coefficient to obtain an initial evaporator virtual temperature, wherein the first adjustment formula is expressed as: log of _a1 (X ₁ +b)+c，0<a1<1, b, c are predetermined constants, log is a logarithmic function, X ₁ Is the first ratio;

if the initial evaporator actual temperature is less than the difference value obtained by subtracting the temperature threshold value from the initial environment temperature, calculating the initial evaporator virtual temperature according to a preset correction formula, the initial evaporator actual temperature and the initial environment temperature, wherein the correction formula is as follows: tevap + k (Tamb-Tevap), tevap being the initial evaporator actual temperature, tamb being the initial ambient temperature, k = f/(g + (Tamb-Tevap)), f, g being preset constants;

3. The refrigeration control method of the new energy vehicle air conditioner as claimed in claim 2, wherein the step of obtaining the initial ambient temperature, the set temperature, the strong light determination result and the sultry determination result includes:

4. The refrigeration control method of the new energy automobile air conditioner as claimed in claim 1, wherein the step of calculating the initial cold air volume according to the obtained initial ambient temperature, the set temperature, the strong light judgment result, the sultry judgment result and the initial passenger compartment temperature comprises:

5. The refrigeration control method of the new energy automobile air conditioner as claimed in claim 4, wherein the step of calculating a target cold air volume according to the initial ambient temperature, the set temperature, the strong light judgment result and the sultry judgment result comprises:

searching a ninth cold air amount supplement value from a preset eleventh mapping table according to the difference value between the set temperature and the initial environment temperature;

6. The refrigeration control method of the new energy automobile air conditioner according to claim 1, wherein the step of controlling the new energy automobile air conditioner according to a preset cold air volume reduction strategy according to the target evaporator actual temperature, the initial passenger compartment temperature, the initial cold air volume and the target cold air volume comprises the following steps:

subtracting the initial cold air quantity from the target cold air quantity to obtain a cold air quantity difference value, and searching a descending proportion point set from a preset fourteenth mapping table according to the cold air quantity difference value, wherein each descending proportion point in the descending proportion point set is arranged in a descending order;

acquiring a counter, and initializing the counter to 1;

acquiring the descending proportion points with the same sequence number as the counter from the descending proportion point set as target proportion points;

7. The refrigeration control method of the new energy automobile air conditioner according to claim 1, wherein after the step of controlling the new energy automobile air conditioner according to a preset cold air volume reduction strategy based on the target evaporator actual temperature, the initial passenger compartment temperature, the initial cold air volume and the target cold air volume, the method comprises:

and if the interval time between the generation time of the initial change signal and the current time exceeds the preset time and the current temperature of the passenger compartment is less than the preset temperature, setting the cold air volume of the new energy automobile air conditioner as the target cold air volume.

8. The utility model provides a new energy automobile air conditioner's refrigeration controlling means which characterized in that, the device includes:

and the control module is used for controlling the new energy automobile air conditioner according to a preset cold air volume reduction strategy according to the target evaporator actual temperature, the initial passenger compartment temperature, the initial cold air volume and the target cold air volume.

9. A computer-readable storage medium, storing a computer program which, when executed by a processor, causes the processor to carry out the steps of the method according to any one of claims 1 to 7.

10. A computer device comprising a memory and a processor, the memory storing a computer program that, when executed by the processor, causes the processor to perform the steps of the method according to any one of claims 1 to 7.