A refrigeration system and control method based on a vehicle air conditioner

Abstract

The present invention provides a refrigeration system and a control method based on a vehicle air conditioner, belonging to the technical field of refrigeration. Specifically, it includes: combining the indoor condensers and outdoor evaporators of the refrigeration system connected to the compressor driven by the engine and the refrigeration system connected to the electric-driven compressor into one body, and arranging mutually isolated pipelines between the indoor condenser and the outdoor evaporator. When the external air temperature is higher than the preset temperature or the cab heat load is greater than the preset heat load, the compressor is driven by the engine to operate. When the cab temperature drops to the specified temperature, the engine-driven compressor is disconnected or stopped, and the electric-driven compressor is switched to work to maintain the temperature of the cab, ensuring the reliability of the temperature control of the cab.

Description

Technical Field

[0001] The present invention belongs to the technical field of refrigeration, and particularly relates to a refrigeration system and a control method based on a vehicle-mounted air conditioner. Background Art

[0002] In order to achieve the refrigeration control of a vehicle-mounted air conditioner, currently, fuel commercial vehicles on the market generally adopt the following refrigeration mode. When driving, a refrigeration system driven by an engine drives a compressor to work. When parked, an electric compressor drives a system to work. The two systems are independent of each other. Specifically, in the patent application for invention, CN202411786535.6 "An Automotive Air Conditioning Heat Exchange Component, an Automotive Air Conditioning Box, and an Automotive Air Conditioning System", a similar structure is given. This not only has a high cost but also requires more space for layout.

[0003] In view of the above technical problems, specifically, the present application provides a refrigeration system and a control method based on a vehicle-mounted air conditioner. Summary of the Invention

[0004] To achieve the object of the present invention, the present invention adopts the following technical solutions:

[0005] In a first aspect, the present application provides a refrigeration system based on a vehicle-mounted air conditioner, specifically including:

[0006] The indoor condensers and outdoor evaporators of the refrigeration system driven by the engine and the refrigeration system driven by the electric drive compressor are combined into one body, and pipelines that are isolated from each other are arranged between the indoor condenser and the outdoor evaporator. When the outside air temperature is higher than a preset temperature or the heat load in the cab is greater than a preset heat load, the engine drives the compressor to operate;

[0007] When the temperature in the cab drops to a specified temperature, the engine-driven compressor is disconnected or stopped, and the electric drive compressor is switched to work to maintain the temperature in the cab.

[0008] A further technical solution lies in that the indoor condenser adopts an up-and-down arrangement mode.

[0009] A further technical solution lies in that the outdoor evaporator adopts a front-and-back arrangement mode.

[0010] A further technical solution lies in that a common fan is used between the indoor condenser and the outdoor evaporator.

[0011] In a second aspect, the present application provides a control method applied to the above-mentioned refrigeration system based on a vehicle-mounted air conditioner, specifically including:

[0012] When it is determined based on the analysis result of the driving data of the compressor under the remaining power of the vehicle's battery that the abnormal operation data of the compressor meets the requirements, the predicted power consumption value for maintaining a preset temperature threshold within a preset duration is determined using the analysis result of the weather data in the area where the vehicle is located.

[0013] Based on the predicted power consumption value and the remaining power of the battery, the operating range of the battery is determined. When it is determined based on the analysis result of the historical discharge data of the battery within the operating range that the driving reliability of the battery does not meet the requirements, based on the predicted power consumption values corresponding to maintaining different target temperatures within a preset duration, the operating ranges of the battery corresponding to different target temperatures are determined, and the available operating range within the operating range is determined using the historical discharge data.

[0014] The deviation situation between different available operating ranges and the endpoints of the specified operating range is determined, and in combination with the deviation situation between different target temperatures and the preset temperature threshold and the historical abnormal discharge data of the battery, the specified temperature is determined, and the specified temperature is used to control the operation of the electric drive compressor.

[0015] A further technical solution is that the remaining power of the battery is determined according to the monitoring result of the battery power monitoring device.

[0016] A further technical solution is that the driving data of the compressor includes the driving current and driving voltage of the battery for the compressor.

[0017] A further technical solution is that the method for determining the specified temperature is as follows:

[0018] Based on the deviation situation between the available operating range and the endpoints of the specified operating range, the deviation amount between the available operating range and the endpoints of the specified operating range is determined, and the fault impact factor of the available operating range on the battery is determined using the deviation amount from the endpoints of the specified range.

[0019] Based on the deviation situation between the target temperature and the preset temperature threshold, the temperature deviation amount between the target temperature and the preset temperature threshold is determined, and the temperature matching coefficient of the available operating range is determined according to the temperature deviation amount.

[0020] Based on the historical abnormal discharge data of the battery, the proportion of the working duration of the battery outside the specified operating range is determined, and the abnormal matching coefficient of the available operating range is determined using the product with the fault impact factor.

[0021] Determine the comprehensive matching coefficient of the available operating range according to the ratio of the temperature matching coefficient to the anomaly matching coefficient, take the available operating range with the largest comprehensive matching coefficient as the target operating range, and take the target temperature corresponding to the target operating range as the specified temperature.

[0022] The beneficial effects of the present invention are as follows:

[0023] This system can provide the most suitable working state under different refrigeration requirements, saving the layout space of the vehicle while reducing product costs.

[0024] By generating a differentiated temperature control strategy based on the monitoring data of the cab temperature, this system not only avoids the technical problem of insufficient working reliability of the vehicle's electrical energy storage device caused by uniformly using an electric drive compressor, but also avoids the technical problem of excessive energy consumption caused by uniformly using an engine to drive the compressor. On the basis of ensuring the real-time nature of temperature control, it also realizes the balanced control of energy consumption and control reliability.

[0025] Determine the specified temperature based on the deviation between the endpoints of different available operating ranges and the specified operating range, the deviation between different target temperatures and the preset temperature threshold, and the historical abnormal discharge data of the battery. Thus, it not only considers the impact of maintaining the specified temperature on the battery life during the process of using the battery to drive the compressor, but also takes into account the differences in the operating reliability of the battery due to the differences in abnormal discharge data when maintaining different specified temperatures, realizing the determination of the specified temperature from multiple dimensions, reducing the fuel consumption of the engine while ensuring the reliability of temperature control processing.

[0026] Other features and advantages will be described in the subsequent specification. The objectives and other advantages of the present invention are achieved and obtained by the structures specifically pointed out in the specification and the drawings.

[0027] To make the above objectives, features, and advantages of the present invention more obvious and understandable, the following specific preferred embodiments are given, and in conjunction with the accompanying drawings, the detailed description is as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] By referring to the accompanying drawings and describing its exemplary embodiments in detail, the above and other features and advantages of the present invention will become more obvious;

[0029] Figure 1 is a framework diagram of a refrigeration system based on an on-vehicle air conditioner;

[0030] Figure 2 is a flowchart of a control method;

[0031] Figure 3 It is a flowchart for determining whether the abnormal operation data of the compressor meets the requirements;

[0032] Figure 4 It is a flowchart of a method for determining the operating range of a battery;

[0033] Figure 5 It is a flowchart of a method for determining the available operating range within the operating range. Detailed implementation manners

[0034] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this specification, rather than all the embodiments. Based on the embodiments of this specification, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this specification.

[0035] Currently, fuel-powered commercial vehicles on the market generally adopt the following refrigeration mode. When driving, a refrigeration system connected to the compressor by the engine operates. When parked, an electric compressor drives a system to operate, and the two systems are independent of each other. This not only has a high cost but also requires more space for layout.

[0036] The core point of the present invention is that the indoor heat exchangers and outdoor radiators in the two systems are combined into one. However, considering that the refrigeration oils in the electric system and the fuel system are different and mutual use will have an impact, and the displacement of the electric drive compressor is small under the parked condition, directly connecting it to the system with a larger refrigeration capacity will cause system mismatch and compressor failure and other factors. Therefore, the flow channels between the two heat exchangers are isolated from each other. The evaporator adopts a front-back arrangement mode, the condenser adopts an up-down arrangement mode, and a common fan is used. When the outside air temperature is relatively high and the heat load in the cab is large, when the engine is working, the inner compressor is driven by the engine pulley to operate, providing a large amount of refrigeration to cool the cab. After the cab temperature drops, the engine belt drive can be disconnected or stopped, and the electric drive compressor is changed to work, providing a small amount of refrigeration to maintain the cab temperature.

[0037] Embodiment 1

[0038] As Figure 1 shown, the present application provides a refrigeration system based on an on-vehicle air conditioner, specifically including:

[0039] The indoor condensers and outdoor evaporators of the refrigeration system connected to the compressor driven by the engine and the refrigeration system connected to the electric-driven compressor are combined into one, and pipes that are isolated from each other are provided between the indoor condenser and the outdoor evaporator. When the outside air temperature is higher than the preset temperature or the cab heat load is greater than the preset heat load, the compressor is driven by the engine to operate;

[0040] When the cab temperature drops to the specified temperature, the engine-driven compressor is disconnected or stopped, and the electric-driven compressor is switched to work to maintain the temperature of the cab.

[0041] Furthermore, the indoor condenser adopts an up-and-down arrangement mode.

[0042] Specifically, the outdoor evaporator adopts a front-and-back arrangement mode.

[0043] It should be noted that a shared blower is used between the indoor condenser and the outdoor evaporator.

[0044] Embodiment 2

[0045] When the proportion of the number of times that the voltage of the compressor at the remaining power is not within the preset deviation voltage range is less than 0.1, it is determined that the abnormal operation data of the compressor meets the requirements.

[0046] When the number of abnormal discharges of the battery within the operating range is greater than 10 times, it is determined that the driving reliability of the battery does not meet the requirements.

[0047] The operating range with less than 3 abnormal discharges is used as the available operating range.

[0048] The specified operating range is the discharge range with the remaining power between 20% and 90%.

[0049] The target temperature corresponding to the available operating range within the specified operating range and with the deviation between the target temperature and the preset temperature threshold less than 3 degrees Celsius is used as the specified temperature.

[0050] S3 Determine the deviation of the endpoints of different available operating ranges from the specified operating range, and combine the deviation of different target temperatures from the preset temperature threshold and the historical abnormal discharge data of the battery to determine the specified temperature, and use the specified temperature to perform control processing for the operation of the electric-driven compressor

[0051] In a second aspect, as Figure 2 shown, the present application provides a control method, which is applied to the above-mentioned refrigeration system based on a vehicle-mounted air conditioner, and specifically includes:

[0052] When it is determined that the abnormal operation data of the compressor meets the requirements based on the analysis result of the driving data of the compressor under the remaining power of the vehicle's battery, the predicted power consumption value for maintaining the preset temperature threshold within the preset duration is determined by using the analysis result of the weather data in the area where the vehicle is located;

[0053] Furthermore, the remaining power of the battery is determined according to the monitoring result of the battery power monitoring device.

[0054] It should be noted that the driving data of the compressor includes the driving current and driving voltage of the battery for the compressor.

[0055] Specifically, the abnormal operation data of the compressor includes the number of abnormal operation times when the driving voltage of the compressor is not within the preset voltage range and the duration of different abnormal operation times.

[0056] Specifically, as Figure 3 shown, determining that the abnormal operation data of the compressor meets the requirements specifically includes:

[0057] Based on the analysis result of the driving data of the compressor under the remaining power of the battery, determine the number of abnormal operation times when the driving voltage of the compressor is not within the preset voltage range;

[0058] Based on the cumulative duration when the driving voltage is not within the preset voltage range among different abnormal operation times, determine the number of problem times in the abnormal operation times;

[0059] Determine whether the abnormal operation data of the compressor meets the requirements through the number of problem times.

[0060] Furthermore, when the number of problem times is not within the preset problem time range, it is determined that the abnormal operation data of the compressor does not meet the requirements.

[0061] It should be noted that when the abnormal operation data of the compressor does not meet the requirements, it is determined that the engine cannot be used to drive the compressor and instead the electric drive compressor cannot work.

[0062] Optionally, determining that the abnormal operation data of the compressor meets the requirements specifically includes:

[0063] Based on the analysis result of the driving data of the compressor under the remaining power of the battery, determine the number of abnormal operation times when the driving voltage of the compressor is not within the preset voltage range;

[0064] Based on different abnormal operation times, determine the sum of the cumulative durations when the driving voltage is not within the preset voltage range, and use it as the deviation duration sum;

[0065] Determine whether the abnormal operation data of the compressor meets the requirements based on the deviation duration.

[0066] Furthermore, when the sum of the deviation durations is greater than the preset deviation duration threshold, it is determined that the abnormal operation data of the compressor does not meet the requirements.

[0067] Optionally, determining that the abnormal operation data of the compressor meets the requirements specifically includes:

[0068] S11 Determine the number of abnormal operations where the drive voltage of the compressor is not within the preset voltage range based on the analysis result of the drive data of the compressor at the remaining battery power.

[0069] S12 Determine the number of occurrences where the drive voltage is not within the preset voltage range among different numbers of abnormal operations, and combine the duration of different occurrences to determine the abnormal operation coefficient for different numbers of abnormal operations.

[0070] S13 Determine the comprehensive operation abnormal coefficient based on the number of abnormal operations and the abnormal operation coefficients of different numbers of abnormal operations, and determine whether the abnormal operation data of the compressor meets the requirements according to the comprehensive operation abnormal coefficient.

[0071] It should be noted that the comprehensive operation abnormal coefficient is determined by the product of the preset abnormal coefficient corresponding to the number of abnormal operations and the average value of the abnormal operation coefficients of different numbers of abnormal operations.

[0072] Optionally, the above step S11 includes the following content:

[0073] S111 If, based on the analysis result of the drive data of the compressor at the remaining battery power, it is determined that there is no number of abnormal operations where the drive voltage of the compressor is not within the preset voltage range, then it is determined that the abnormal operation data of the compressor meets the requirements. When there is a number of abnormal operations where the drive voltage of the compressor is not within the preset voltage range, proceed to step S112.

[0074] S112 When the number of abnormal operations is greater than the preset operation number threshold, proceed to step S113. When the number of abnormal operations is not greater than the preset operation number threshold, proceed to step S114.

[0075] S113 If the ratio of the number of abnormal operations to the number of drive processing times at the remaining battery power does not meet the requirements, then it is determined that the abnormal operation data of the compressor does not meet the requirements. When the ratio of the number of abnormal operations to the number of drive processing times at the remaining battery power meets the requirements, proceed to step S114.

[0076] S114 determines an initial drive anomaly coefficient based on the number of abnormal operations and the ratio of the number of abnormal operations to the number of drive processing times at the remaining power. When the initial drive anomaly coefficient does not meet the requirements, it is determined that the abnormal operation data of the compressor does not meet the requirements. When the initial drive anomaly coefficient meets the requirements, step S12 is entered.

[0077] Optionally, the following content is included in step S12 above:

[0078] S121 determines the cumulative duration during which the drive voltage is not within the preset voltage range among different numbers of abnormal operations. When there is an abnormal operation with a cumulative duration greater than the preset duration, step S122 is entered. When there is no abnormal operation with a cumulative duration greater than the preset duration, step S125 is entered;

[0079] S122 When the number of abnormal operations with a cumulative duration greater than the preset duration does not meet the requirements, it is determined that the abnormal operation data of the compressor does not meet the requirements. When the number of abnormal operations with a cumulative duration greater than the preset duration meets the requirements, step S123 is entered;

[0080] S123 When the initial drive anomaly coefficient is within the preset drive anomaly coefficient range, step S124 is entered. When the initial drive anomaly coefficient is not within the preset drive anomaly coefficient range, step S125 is entered;

[0081] S124 Based on the sum of the cumulative durations during which the drive voltage is not within the preset voltage range among different numbers of abnormal operations, and taking it as the deviation duration sum. When the deviation duration sum is greater than the duration set value, it is determined that the abnormal operation data of the compressor does not meet the requirements. When the deviation duration sum is not greater than the duration set value, step S125 is entered;

[0082] S125 determines the abnormal operation coefficient of different abnormal operations according to the number of occurrences of the drive voltage not within the preset voltage range and combines the durations of different occurrences. When there is an abnormal operation with an abnormal operation coefficient within the preset operation coefficient abnormal range, it is determined that the abnormal operation data of the compressor does not meet the requirements. When there is no abnormal operation with an abnormal operation coefficient not within the preset operation coefficient range, step S13 is entered.

[0083] Further, the weather data of the area where the vehicle is located is determined according to the weather forecast data of the location corresponding to the positioning device of the vehicle.

[0084] Optionally, the value range of the preset duration is between 1 hour and 6 hours.

[0085] It should be further noted that the method for determining the predicted power consumption value for maintaining the preset temperature threshold within the preset time period is as follows:

[0086] Based on the weather data within the preset time period, determine the historical reference period of the preset time period;

[0087] Determine the predicted power consumption value according to the average value of the power consumption for maintaining the preset temperature threshold in different historical reference periods.

[0088] Further, the historical reference period is a historical period in which the deviation amount from the weather data within the future preset time period is within the preset deviation amount range.

[0089] S2 Based on the predicted power consumption value and the remaining power of the battery, determine the operating range of the battery. When it is determined that the driving reliability of the battery in the operating range does not meet the requirements based on the analysis result of the historical discharge data of the battery in the operating range, based on the predicted power consumption values corresponding to maintaining different target temperatures within the preset time period, determine the operating ranges of the battery corresponding to different target temperatures, and use the historical discharge data to determine the available operating range in the operating range;

[0090] Specifically, as Figure 4 shown, the method for determining the operating range of the battery is as follows:

[0091] Based on the remaining power of the battery and in combination with the predicted power consumption value, determine the remaining power of the battery after the preset time period;

[0092] Based on the remaining power after the preset time period and the remaining power of the battery, determine the operating range of the battery.

[0093] Further, determining that the driving reliability of the battery does not meet the requirements specifically includes:

[0094] Based on the analysis result of the historical discharge data of the battery in the operating range, determine the number of abnormal operations in which the driving voltage of the battery in the operating range is not within the preset voltage range;

[0095] Determine whether the driving reliability of the battery meets the requirements according to the number of abnormal operations in the operating range.

[0096] It should be further noted that when the number of abnormal operations in the operating range is greater than the preset abnormal operation number threshold, it is determined that the driving reliability of the battery does not meet the requirements.

[0097] It can be understood that when the driving reliability of the battery meets the requirements, the preset temperature threshold is used as the specified temperature.

[0098] Optionally, determining that the driving reliability of the battery does not meet the requirements specifically includes:

[0099] Based on the analysis result of the historical discharge data of the battery within the operating range, determining the number of abnormal operations in which the driving voltage of the battery within the operating range is not within the preset voltage range;

[0100] Dividing the operating range into different sub-ranges at equal intervals, and determining the abnormal sub-ranges according to the number of abnormal operations in different sub-ranges;

[0101] Determining whether the driving reliability of the battery meets the requirements by the proportion of the number of the abnormal sub-ranges.

[0102] Further, when the proportion of the number of the abnormal sub-ranges is greater than the preset proportion of the number of ranges, it is determined that the driving reliability of the battery does not meet the requirements.

[0103] Optionally, determining that the driving reliability of the battery does not meet the requirements specifically includes:

[0104] S21 Based on the analysis result of the historical discharge data of the battery within the operating range, determining the number of abnormal operations in which the driving voltage of the battery within the operating range is not within the preset voltage range, and determining the voltage abnormal coefficients of different abnormal operations based on the deviation of the driving voltage at different moments from the endpoints of the preset voltage range among different abnormal operation numbers;

[0105] S22 Dividing the operating range into different sub-ranges at equal intervals, and determining the interval abnormal coefficients of different sub-ranges according to the number of abnormal operations in different sub-ranges and the voltage abnormal coefficients of different abnormal operations;

[0106] S23 Determining the driving abnormal coefficient of the battery through the average value of the interval abnormal coefficients of different sub-ranges, and using the driving abnormal coefficient to determine whether the driving reliability of the battery meets the requirements.

[0107] Optionally, when the driving abnormal coefficient is less than the preset driving abnormal coefficient threshold, it is determined that the driving reliability of the battery meets the requirements.

[0108] Optionally, the above step S21 includes the following contents:

[0109] S211 Based on the analysis result of the historical discharge data of the battery within the operating range, determining the number of abnormal operations in which the driving voltage of the battery within the operating range is not within the preset voltage range. When the number of abnormal operations within the operating range does not meet the requirements, it is determined that the driving reliability of the battery does not meet the requirements. When the number of abnormal operations within the operating range meets the requirements, proceed to step S212;

[0110] S212. Based on the deviation of the drive voltage from the endpoints of the preset voltage range at different moments during different abnormal operation times, determine the voltage anomaly coefficients for different abnormal operation times. When there is an abnormal operation time with a voltage anomaly coefficient greater than the preset anomaly coefficient threshold, proceed to step S213; when there is no abnormal operation time with a voltage anomaly coefficient greater than the preset anomaly coefficient threshold, proceed to step S22;

[0111] S213. Take the abnormal operation times with voltage anomaly coefficients greater than the preset anomaly coefficient threshold as the screened abnormal times. When the screened abnormal times do not meet the requirements, it is determined that the drive reliability of the battery does not meet the requirements. When the screened abnormal times meet the requirements, proceed to step S22.

[0112] Optionally, the following content is included in the above step S22:

[0113] S221. Divide the operation interval into different sub - intervals at equal intervals, and obtain the abnormal operation times within different sub - intervals. When there is no sub - interval with abnormal operation times outside the preset number range, proceed to step S223; when there is a sub - interval with abnormal operation times outside the preset number range, proceed to step S222;

[0114] S222. Take the sub - intervals with abnormal operation times outside the preset number range as suspected abnormal sub - intervals. When the proportion of the number of suspected abnormal sub - intervals does not meet the requirements, it is determined that the drive reliability of the battery does not meet the requirements. When the proportion of the number of suspected abnormal sub - intervals meets the requirements, proceed to step S223;

[0115] S223. Determine the interval anomaly coefficients for different sub - intervals based on the abnormal operation times within different sub - intervals and the voltage anomaly coefficients of different abnormal operation times. When there is a sub - interval with an interval anomaly coefficient that does not meet the requirements, proceed to step S224; when there is no sub - interval with an interval anomaly coefficient that does not meet the requirements, proceed to step S23;

[0116] S224. Obtain the number of sub - intervals with interval anomaly coefficients that do not meet the requirements. When the number of sub - intervals with interval anomaly coefficients that do not meet the requirements is within the preset interval number range, it is determined that the drive reliability of the battery does not meet the requirements. When the number of sub - intervals with interval anomaly coefficients that do not meet the requirements is not within the preset interval number range, proceed to step S23.

[0117] Specifically, as Figure 5 shown, the method for determining the available operation interval in the operation interval is:

[0118] Determine the number of abnormal operations in the operating range where the driving voltage of the battery is not within the preset voltage range using the historical discharge data;

[0119] Determine the abnormal proportion factor using the ratio of the number of abnormal operations to the historical driving times in the operating range;

[0120] Determine the available operating range in the operating range according to the abnormal proportion factor.

[0121] Furthermore, when the abnormal proportion factor meets the requirements, determine that the operating range is an available operating range.

[0122] S3 Determine the deviation of the endpoints of different available operating ranges from the endpoints of the specified operating range, and combine the deviation of different target temperatures from the preset temperature threshold and the historical abnormal discharge data of the battery to determine the specified temperature, and use the specified temperature to control the operation of the electric drive compressor.

[0123] It should be noted that the specified operating range is a discharge range that will not cause damage to the battery, and is specifically determined according to the preset discharge range corresponding to the battery model.

[0124] It can be understood that the method for determining the specified temperature is as follows:

[0125] Based on the deviation of the endpoints of the available operating range from the endpoints of the specified operating range, determine the deviation amount of the endpoints of the available operating range from the endpoints of the specified operating range, and use the deviation amount from the endpoints of the specified range as the basis to determine the fault influence factor of the available operating range on the battery;

[0126] Based on the deviation of the target temperature from the preset temperature threshold, determine the temperature deviation amount of the target temperature from the preset temperature threshold, and determine the temperature matching coefficient of the available operating range according to the temperature deviation amount;

[0127] Based on the historical abnormal discharge data of the battery, determine the proportion of the working time of the battery outside the specified operating range, and use the product with the fault influence factor to determine the abnormal matching coefficient of the available operating range;

[0128] According to the ratio of the temperature matching coefficient to the abnormal matching coefficient, determine the comprehensive matching coefficient of the available operating range, take the available operating range with the largest comprehensive matching coefficient as the target operating range, and take the target temperature corresponding to the target operating range as the specified temperature. A further technical solution is to use the specified temperature to control the operation of the electric drive compressor, specifically including:

[0129] When the cab temperature drops to the specified temperature, disconnect or stop the engine from driving the compressor, and switch to the electric drive compressor to work.

[0130] Optionally, the method for determining the specified temperature is as follows:

[0131] Based on the deviation between the available operating range and the endpoints of the specified operating range, determine the deviation amount between the available operating range and the endpoints of the specified operating range. When the deviation amount from the endpoints of the specified operating range does not meet the requirements, it is determined that the target temperature corresponding to the available operating range does not belong to the specified temperature;

[0132] When the deviation amount from the endpoints of the specified operating range meets the requirements:

[0133] Based on the deviation between the target temperature and the preset temperature threshold, determine the temperature deviation amount between the target temperature and the preset temperature threshold. When the temperature deviation amount between the target temperature and the preset temperature threshold does not meet the requirements, it is determined that the target temperature corresponding to the available operating range does not belong to the specified temperature;

[0134] When the temperature deviation amount between the target temperature and the preset temperature threshold meets the requirements:

[0135] Use the deviation amount from the endpoints of the specified range to determine the fault impact factor of the available operating range on the battery. Based on the historical abnormal discharge data of the battery, determine the proportion of the working duration of the battery outside the specified operating range, and use the product with the fault impact factor to determine the abnormal matching coefficient of the available operating range. When the abnormal matching coefficient of the available operating range does not meet the requirements, it is determined that the target temperature corresponding to the available operating range does not belong to the specified temperature;

[0136] When the abnormal matching coefficient of the available operating range meets the requirements:

[0137] Determine the temperature matching coefficient of the available operating range according to the temperature deviation amount. According to the ratio of the temperature matching coefficient to the abnormal matching coefficient, determine the comprehensive matching coefficient of the available operating range, and use the comprehensive matching coefficient and the target temperatures corresponding to different available operating ranges to determine the specified temperature.

[0138] Each embodiment in this specification is described in a progressive manner. The same or similar parts among the embodiments can be referred to each other, and the key points of each embodiment are the differences from other embodiments. In particular, for the embodiments of the device, equipment, and non-volatile computer storage medium, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0139] The specific embodiments of the present specification have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve the desired result. Additionally, the processes depicted in the figures do not necessarily require the particular order or sequential order shown to achieve the desired result. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0140] The above description is only for one or more embodiments of the present specification and is not intended to limit the present specification. For those skilled in the art, various modifications and variations can be made to one or more embodiments of the present specification. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of one or more embodiments of the present specification shall be included within the scope of the claims of the present specification.

Claims

1. A control method, characterized in that, Specifically, it includes: Integrate the indoor heat exchangers and outdoor radiators of the refrigeration system connected to the compressor driven by the engine and the refrigeration system connected to the electric-driven compressor into one. When the outside air temperature is higher than the preset temperature or the cab heat load is greater than the preset heat load, the compressor is driven by the engine to operate; When the cab temperature drops to the specified temperature, disconnect or stop the engine from driving the compressor, and instead let the electric-driven compressor work to maintain the temperature of the cab Based on the analysis result of the driving data of the compressor under the remaining power of the vehicle's battery, when it is determined that the abnormal operation data of the compressor meets the requirements, use the analysis result of the weather data in the area where the vehicle is located to determine the predicted power consumption value for maintaining the preset temperature threshold within the preset duration; Based on the predicted power consumption value and the remaining power of the battery, determine the operating range of the battery. Based on the analysis result of the historical discharge data of the battery within the operating range, when it is determined that the driving reliability of the battery does not meet the requirements, based on the predicted power consumption values corresponding to maintaining different target temperatures within the preset duration, determine the operating ranges of the battery corresponding to different target temperatures, and use the historical discharge data to determine the available operating ranges within the operating range; Determine the deviation of the endpoints of different available operating ranges from the specified operating range, and combine the deviation of different target temperatures from the preset temperature threshold and the historical abnormal discharge data of the battery to determine the specified temperature, and use the specified temperature to perform the control process of the electric-driven compressor operation.

2. The control method according to claim 1, wherein The remaining power of the battery is determined according to the monitoring result of the battery power monitoring device.

3. The control method according to claim 1, characterized in that, The driving data of the compressor includes the driving current and driving voltage of the battery for the compressor.

4. The control method according to claim 1, wherein, Determining that the abnormal operation data of the compressor meets the requirements specifically includes: Based on the analysis result of the driving data of the compressor under the remaining power of the battery, determine the number of abnormal operation times when the driving voltage of the compressor is not within the preset voltage range; Based on the cumulative duration when the driving voltage is not within the preset voltage range among different abnormal operation times, determine the number of problems in the abnormal operation times; Determine whether the abnormal operation data of the compressor meets the requirements through the number of problems.

5. The control method according to claim 4, wherein When the number of problems is not within the preset problem number range, it is determined that the abnormal operation data of the compressor does not meet the requirements.

6. The control method according to claim 1, characterized in that Determining that the driving reliability of the battery does not meet the requirements specifically includes: Based on the analysis result of the historical discharge data of the battery within the operating range, determine the number of abnormal operation times when the driving voltage of the battery within the operating range is not within the preset voltage range; Divide the operating range into different sub-ranges at equal intervals, and determine the abnormal sub-ranges according to the number of abnormal operation times within different sub-ranges; Determine whether the driving reliability of the battery meets the requirements through the proportion of the number of abnormal sub-ranges.

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