Compressor step control method, device, apparatus and storage medium

Abstract

This application provides a method, apparatus, device, and storage medium for hierarchical control of a compressor, relating to the field of automotive technology. The method includes: acquiring real-time parameter information and predicted parameter information during the operation of a vehicle's compressor; wherein the parameter information indicates safe operating parameters for the compressor; determining a first control interval matching the real-time parameter information and a second control interval matching the predicted parameter information from multiple preset hierarchical control intervals; wherein each preset hierarchical control interval has a corresponding hierarchical control strategy; and controlling the compressor's operation according to at least one of the first hierarchical control strategy of the first control interval and the second hierarchical control strategy of the second control interval. This method can intervene in the compressor's operation in advance and improve the precision and accuracy of compressor control through hierarchical control, thereby ensuring the safe and stable operation of the compressor.

Description

Technical Field

[0001] This application relates to the field of automotive technology, and in particular to a method, apparatus, device and storage medium for graded control of a compressor. Background Technology

[0002] In heat pump systems for new energy vehicles, the compressor is a core component, and its operating status directly affects the system's heating / cooling efficiency and safety. Therefore, protecting the compressor and ensuring its safe operation is a critical technical issue that needs to be addressed.

[0003] In related technologies, the protection strategy mainly adopts a single threshold triggering mechanism, that is, when a certain operating parameter of the compressor exceeds the threshold, the compressor is controlled to immediately reduce its speed or shut down.

[0004] This implementation method results in a coarse control of the compressor, lacking flexibility and versatility, which in turn affects the performance of the vehicle system. Summary of the Invention

[0005] This application provides a method, apparatus, device, and storage medium for graded control of a compressor, which can intervene in the operation of the compressor in advance and improve the precision and accuracy of compressor control through graded control, thereby ensuring the safe and stable operation of the compressor.

[0006] In a first aspect, embodiments of this application provide a compressor staged control method, including:

[0007] During the operation of the vehicle's compressor, real-time parameter information and predicted parameter information are acquired; wherein, the parameter information indicates the safe operating parameters of the compressor;

[0008] From multiple preset hierarchical control intervals, a first control interval matching the real-time parameter information is determined, and a second control interval matching the predicted parameter information is determined; wherein, each preset hierarchical control interval has a corresponding hierarchical control strategy;

[0009] The compressor is controlled to operate according to at least one of the first hierarchical control strategy of the first control zone and the second hierarchical control strategy of the second control zone.

[0010] In one possible implementation, the plurality of preset hierarchical control intervals include: a safety interval, a warning interval, a critical interval, and a danger interval; wherein,

[0011] The hierarchical control strategy of the safety zone is a normal operation strategy;

[0012] The warning interval has a graded control strategy that limits the increase in rotational speed;

[0013] The critical range has a graded control strategy of speed reduction;

[0014] The graded control strategy for the dangerous zone is a compressor shutdown strategy.

[0015] In one possible implementation, each of the preset hierarchical control intervals has a corresponding parameter value interval; from a plurality of preset hierarchical control intervals, a first control interval matching the real-time parameter information is determined, and a second control interval matching the predicted parameter information is determined, including:

[0016] Based on the first parameter value range to which the real-time parameter information belongs, the first control range is determined from the plurality of preset hierarchical control ranges;

[0017] Based on the second parameter value range to which the predicted parameter information belongs, the second control interval is determined from the plurality of preset hierarchical control intervals.

[0018] In one possible implementation, the method further includes:

[0019] Obtain the performance parameter information of the vehicle's compressor;

[0020] Based on the performance parameter information, determine the parameter value range corresponding to each preset graded control range.

[0021] In one possible implementation, the plurality of preset hierarchical control intervals are divided into advance control intervals and non-advance control intervals; wherein, the non-advance control interval includes the safety interval and the warning interval; the advance control interval includes the critical interval and the danger interval; controlling the operation of the compressor according to at least one of a first hierarchical control strategy of the first control interval and a second hierarchical control strategy of the second control interval includes:

[0022] If it is determined that both the first control interval and the second control interval are non-advance control intervals, or if it is determined that the first control interval is the advance control interval and the second control interval is the non-advance control interval, then the operation of the compressor is controlled according to the first hierarchical control strategy.

[0023] If it is determined that the first control interval is the non-advance control interval and the second control interval is the advance control interval, or if it is determined that both the first control interval and the second control interval are the advance control intervals, then after performing control enhancement processing on the first hierarchical control strategy according to the second hierarchical control strategy, the operation of the compressor is controlled according to the enhanced first hierarchical control strategy.

[0024] In one possible implementation, obtaining prediction parameter information includes:

[0025] The rate of change of the real-time parameter information is monitored in real time, and the predicted parameter information is determined based on the rate of change of the real-time parameter information; or

[0026] The vehicle's operating status information is obtained, and the prediction parameter information is determined based on the operating status information.

[0027] In one possible implementation, after controlling the operation of the compressor, the method further includes:

[0028] Obtain new real-time parameter information;

[0029] Determine the difference between the new real-time parameter information and the real-time parameter information at the previous moment;

[0030] If it is determined that the difference does not meet the compressor control requirements, then a third-level control strategy is determined.

[0031] The operation of the compressor is controlled according to the third-level control strategy.

[0032] Secondly, embodiments of this application provide a compressor staged control device, comprising:

[0033] The acquisition unit is used to acquire real-time parameter information and predicted parameter information during the operation of the vehicle's compressor; wherein the parameter information indicates the safe operating parameters of the compressor.

[0034] The determining unit is used to determine a first control interval that matches the real-time parameter information from a plurality of preset hierarchical control intervals, and to determine a second control interval that matches the predicted parameter information; wherein each preset hierarchical control interval has a corresponding hierarchical control strategy.

[0035] The control unit is configured to control the operation of the compressor according to at least one of a first hierarchical control strategy of the first control interval and a second hierarchical control strategy of the second control interval.

[0036] In one possible implementation, the plurality of preset hierarchical control intervals include: a safety interval, a warning interval, a critical interval, and a danger interval; wherein,

[0037] The hierarchical control strategy of the safety zone is a normal operation strategy;

[0038] The warning interval has a graded control strategy that limits the increase in rotational speed;

[0039] The critical range has a graded control strategy of speed reduction;

[0040] The graded control strategy for the dangerous zone is a compressor shutdown strategy.

[0041] In one possible implementation, each of the preset hierarchical control intervals has a corresponding parameter value interval; in this case, the determining unit is used to:

[0042] Based on the first parameter value range to which the real-time parameter information belongs, the first control range is determined from the plurality of preset hierarchical control ranges;

[0043] Based on the second parameter value range to which the predicted parameter information belongs, the second control interval is determined from the plurality of preset hierarchical control intervals.

[0044] In one possible implementation, the device is also used for:

[0045] Obtain the performance parameter information of the vehicle's compressor;

[0046] Based on the performance parameter information, determine the parameter value range corresponding to each preset graded control range.

[0047] In one possible implementation, the plurality of preset hierarchical control intervals are divided into advance control intervals and non-advance control intervals; wherein, the non-advance control interval includes the safety interval and the warning interval; the advance control interval includes the critical interval and the danger interval; in this case, the control unit is configured to:

[0048] If it is determined that both the first control interval and the second control interval are non-advance control intervals, or if it is determined that the first control interval is the advance control interval and the second control interval is the non-advance control interval, then the operation of the compressor is controlled according to the first hierarchical control strategy.

[0049] If it is determined that the first control interval is the non-advance control interval and the second control interval is the advance control interval, or if it is determined that both the first control interval and the second control interval are the advance control intervals, then after performing control enhancement processing on the first hierarchical control strategy according to the second hierarchical control strategy, the operation of the compressor is controlled according to the enhanced first hierarchical control strategy.

[0050] In one possible implementation, the acquiring unit is used for:

[0051] The rate of change of the real-time parameter information is monitored in real time, and the predicted parameter information is determined based on the rate of change of the real-time parameter information; or

[0052] The vehicle's operating status information is obtained, and the prediction parameter information is determined based on the operating status information.

[0053] In one possible implementation, after controlling the operation of the compressor, the device is further used to:

[0054] Obtain new real-time parameter information;

[0055] Determine the difference between the new real-time parameter information and the real-time parameter information at the previous moment;

[0056] If it is determined that the difference does not meet the compressor control requirements, then a third-level control strategy is determined.

[0057] The operation of the compressor is controlled according to the third-level control strategy.

[0058] Thirdly, embodiments of this application provide an electronic device, including: a memory and a processor;

[0059] The memory stores computer-executed instructions;

[0060] The processor executes computer execution instructions stored in the memory, causing the processor to perform the first aspect and / or various possible implementations of the first aspect as described above.

[0061] Fourthly, embodiments of this application provide a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the first aspect and / or various possible implementations of the first aspect.

[0062] Fifthly, embodiments of this application provide a computer program product, including a computer program that, when executed by a processor, implements the first aspect and / or various possible implementations of the first aspect.

[0063] The compressor hierarchical control method, apparatus, device, and storage medium provided in this application can acquire real-time parameter information and predicted parameter information during the operation of a vehicle's compressor. Based on the real-time and predicted parameter information, a hierarchical control method for the compressor can be determined. Specifically, a first control interval matching the real-time parameter information and a second control interval matching the predicted parameter information can be determined from multiple preset hierarchical control intervals. Then, the compressor operation is controlled according to at least one of a first hierarchical control strategy of the first control interval and a second hierarchical control strategy of the second control interval. This implementation can achieve hierarchical response across multiple intervals through hierarchical control strategies of multiple preset hierarchical control intervals, improving the precision, flexibility, and diversity of compressor control. Simultaneously, it can proactively identify the future state of the compressor based on predicted parameter information, thereby intervening in advance to prevent premature compressor operation. This ensures safe compressor operation and avoids frequent compressor start-stop cycles caused by shutting down the compressor based on a single threshold exceeding limits, thus helping to ensure stable compressor operation and ultimately guaranteeing system performance. Attached Figure Description

[0064] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0065] Figure 1 A schematic flowchart of a compressor staged control method provided in an embodiment of this application;

[0066] Figure 2 A schematic flowchart of another compressor staged control method provided in an embodiment of this application;

[0067] Figure 3 This is a schematic diagram of the structure of a compressor staged control device provided in an embodiment of this application;

[0068] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0069] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0070] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0071] In this document, the term "and / or" merely describes a relationship, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0072] In the heat pump system of new energy vehicles, the compressor is the core component, and its operating status directly affects the heating / cooling efficiency and safety of the system.

[0073] During compressor operation, the high-pressure side pressure, low-pressure side pressure, and exhaust temperature are critical safety parameters. If these safety parameters exceed safety limits, it may lead to compressor overload or damage, decreased system efficiency, refrigerant leakage or heat pump failure, and malfunctions in the vehicle's thermal management system.

[0074] In related technologies, the protection strategy mainly adopts a single threshold triggering mechanism, that is, when a certain operating parameter (or safety parameter) of the compressor exceeds the threshold, the compressor is controlled to immediately reduce its speed or shut down.

[0075] This implementation method results in relatively coarse compressor control, making it impossible to anticipate compressor risks in advance and leading to delayed response. Furthermore, this implementation method results in a single, inflexible, and unversatile compressor control method, which in turn affects the flexibility of compressor control and consequently impacts the performance of the vehicle system.

[0076] The compressor hierarchical control method provided in this application can control the operation of the compressor together based on real-time operating parameters, predicted operating parameters, and multiple hierarchical control ranges, realizing the transformation from "single threshold triggering" to "hierarchical response". This not only improves the flexibility and diversity of compressor control, but also enables early prediction and intervention of compressor risks, avoiding frequent start-stop or deceleration of the compressor, thereby solving the above-mentioned technical problems.

[0077] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0078] Figure 1 This is a flowchart illustrating a compressor staged control method provided in an embodiment of this application, as shown below. Figure 1 As shown, the method includes:

[0079] S101. During the operation of the vehicle's compressor, real-time parameter information and predicted parameter information are acquired; wherein, the parameter information indicates the safe operating parameters of the compressor.

[0080] In one example, the safe operating parameters of the compressor may include, but are not limited to, the high-pressure side pressure, low-pressure side pressure, and exhaust temperature mentioned above.

[0081] In one example, real-time parameter information refers to the parameter information in real time, while predicted parameter information refers to the predicted parameter information.

[0082] S102. From multiple preset hierarchical control intervals, determine the first control interval that matches the real-time parameter information and the second control interval that matches the predicted parameter information.

[0083] Each preset hierarchical control interval has a corresponding hierarchical control strategy.

[0084] In this embodiment of the application, different hierarchical control intervals can be pre-divided according to different levels of control strategies. At this time, the number of preset hierarchical control intervals can be 4, 5, 3, etc. The number of preset hierarchical control intervals is not limited here, and is based on meeting actual needs.

[0085] In one example, each preset hierarchical control interval can correspond to parameter information within different value ranges. In this case, the corresponding control interval can be determined based on the values ​​of the real-time and predicted parameter information.

[0086] S103. Control the operation of the compressor according to at least one of the first hierarchical control strategy of the first control zone and the second hierarchical control strategy of the second control zone.

[0087] For example, if the first level control strategy and the second level control strategy are the same, the compressor operation is controlled according to either the first level control strategy or the second level control strategy; if the first level control strategy and the second level control strategy are different, the compressor operation can be controlled according to the first level control strategy, or the compressor operation can be controlled after adjusting the first control strategy according to the second level control strategy.

[0088] As described above, the embodiments of this application can acquire real-time parameter information and predicted parameter information during the operation of the vehicle's compressor, thereby determining a hierarchical control method for the compressor based on the real-time and predicted parameter information. Specifically, a first control interval matching the real-time parameter information and a second control interval matching the predicted parameter information can be determined from multiple preset hierarchical control intervals. Then, the compressor operation is controlled according to at least one of the first hierarchical control strategy of the first control interval and the second hierarchical control strategy of the second control interval. This implementation can achieve hierarchical response across multiple intervals through hierarchical control strategies of multiple preset hierarchical control intervals, improving the precision, flexibility, and diversity of compressor control. Simultaneously, it can proactively identify the future state of the compressor based on predicted parameter information, thereby intervening in the compressor's premature operation. This ensures the safe operation of the compressor while preventing it from shutting down prematurely based on a single threshold, thus avoiding frequent start-stop cycles and contributing to stable compressor operation and overall system performance.

[0089] Figure 2 A flowchart illustrating another compressor staged control method provided in this application embodiment is shown below. Figure 2 As shown, in this embodiment... Figure 1 Based on the embodiments, the compressor staged control method is described in detail, which includes:

[0090] S201. During the operation of the vehicle's compressor, real-time parameter information and predicted parameter information are acquired; wherein, the parameter information indicates the safe operating parameters of the compressor.

[0091] In one possible implementation, the prediction parameter information can be obtained in the following manner.

[0092] Method 1: Monitor the rate of change of real-time parameter information and determine the predicted parameter information based on the rate of change of real-time parameter information.

[0093] In one example, real-time parameter information can be monitored by collecting data from pressure and temperature sensors, thereby determining the rate of change of the real-time parameter information. For instance, the rate of change of real-time parameter information can indicate the amount of change of the real-time parameter information per unit time.

[0094] At this point, the predicted parameter information can be determined based on the rate of change of real-time parameter information, according to the prediction model (e.g., linear regression model).

[0095] At this point, the safe operating parameters of the compressor can be predicted by monitoring the rate of change of real-time parameter information, so as to determine whether the compressor needs to be intervened in advance.

[0096] Method 2: Obtain the vehicle's operating status information and determine the prediction parameter information based on the operating status information.

[0097] In one example, vehicle operating status information may include, but is not limited to: vehicle speed, battery health status, motor speed, vehicle voltage, ambient temperature, humidity, condenser / evaporator airflow, and refrigerant circulation process.

[0098] At this time, the vehicle speed, battery health status, motor speed, and vehicle voltage can be obtained through the vehicle's CAN (Controller Area Network) bus interface, and information such as ambient temperature and humidity can be obtained from environmental sensors, and condenser / evaporator airflow and refrigerant circulation flow can be obtained from heat pump system sensors.

[0099] Then, prediction parameters can be obtained by performing prediction processing based on the vehicle's operating status information using machine learning models (e.g., LSTM (Long Short-Term Memory) models).

[0100] At this point, the safe operating parameters of the compressor can be predicted using the vehicle's operating status information, so as to determine whether early intervention is needed for the compressor.

[0101] Optionally, embodiments of this application may pre-set multiple preset hierarchical control intervals, wherein each preset hierarchical control interval has a corresponding hierarchical control strategy.

[0102] Optionally, the multiple preset hierarchical control intervals provided in the embodiments of this application include: a safe interval, a warning interval, a critical interval, and a danger interval.

[0103] The safe zone has a normal operation control strategy; the warning zone has a speed limit increase strategy; the critical zone has a speed decrease strategy; and the danger zone has a compressor shutdown strategy.

[0104] In one example, the strategy of limiting the increase in compressor speed can be understood as keeping the compressor speed at its current value and not allowing it to increase. In this case, the compressor speed is allowed to decrease.

[0105] In one example, the speed reduction strategy can include the speed reduction frequency and the speed reduction magnitude. For example, the speed reduction strategy can be a reduction of 100 revolutions per second.

[0106] In one example, the compressor shutdown strategy can be understood as controlling the compressor to shut down when the parameter information remains in the danger zone for a duration longer than a preset duration.

[0107] In one example, different types of parameter information can correspond to different preset durations. For example, the first preset duration corresponding to the high-pressure side pressure can be 15 seconds, the second preset duration corresponding to the low-pressure side pressure can be 10 seconds, and the third preset duration corresponding to the exhaust temperature can be 10 seconds, etc. Here, there is no limit to the duration that each parameter information is allowed to remain in the danger zone, and the actual needs shall prevail.

[0108] In one example, each preset graded control interval has a corresponding parameter value range. In this case, based on the above-mentioned multiple preset graded control intervals, graded control of the compressor is performed, as described in the process below.

[0109] S202. Based on the first parameter value range to which the real-time parameter information belongs, determine the first control range from multiple preset hierarchical control ranges.

[0110] S203. Based on the second parameter value range to which the predicted parameter information belongs, determine the second control interval from multiple preset hierarchical control intervals.

[0111] In one example, when there are multiple parameter information, each preset hierarchical control interval has a parameter value range for each parameter information.

[0112] For example, the parameter value range of the safe zone can be expressed as: high pressure side pressure < 25 kPa, low pressure side pressure > 1.2 kPa, and exhaust temperature < 105 °C.

[0113] The parameter value range of the warning interval can be expressed as: 27Kpa≥high pressure side pressure≥25Kpa, 1.2Kpa≥low pressure side pressure≥1.05Kpa, and 115℃≥exhaust temperature≥105℃.

[0114] The parameter value range of the critical range can be expressed as: 30 kPa ≥ high pressure side pressure ≥ 27 kPa, 1.05 kPa ≥ low pressure side pressure ≥ 0.85 kPa, and 125℃ ≥ exhaust temperature ≥ 115℃.

[0115] The parameter range of the danger zone can be expressed as: high pressure side pressure > 30 kPa, low pressure side pressure < 0.85 kPa, and exhaust temperature > 125 °C.

[0116] In the above implementation, the control range for matching parameter information can be determined simply and quickly based on the parameter value range to which each parameter information (including real-time parameter information and predicted parameter information) belongs.

[0117] Optionally, when there are multiple parameter information, if different control intervals are determined based on different parameter information, then the higher-level control interval can be determined as the control interval to which the parameter information belongs.

[0118] For example, if the high-pressure side pressure is determined to be within a safe range based on the parameter value range, and the low-pressure side pressure and exhaust temperature are determined to be within a warning range based on the parameter value range, then the warning range can be defined as the control range corresponding to the parameter information.

[0119] In one possible implementation, before implementing the compressor hierarchical control method provided in this application embodiment, the parameter value range that matches the compressor in the current vehicle can be determined based on the compressor's performance, thereby making the division of the parameter value range more precise and further improving the accuracy of compressor control.

[0120] Specifically, the performance parameter information of the vehicle's compressor can be obtained first, and then the parameter value range corresponding to each preset grade control range can be determined based on the performance parameter information.

[0121] In one example, the performance parameter information of the vehicle's compressor may include, but is not limited to: the compressor's rated operating parameters, the parameter fluctuation range of the compressor under normal operation, the compressor's critical operating parameters, and the compressor's maximum allowable operating parameters, to determine the parameter value range corresponding to each preset graded control interval.

[0122] In one example, the performance parameters of the compressor in the vehicle mentioned above can be pre-calibrated or determined based on the compressor's historical operating data. Here, the method of determining the compressor's performance parameters is not limited, as long as it is feasible.

[0123] At this point, the parameter value range corresponding to the safe range can be determined based on the compressor's rated operating parameter information; the parameter value range corresponding to the warning range can be determined based on the compressor's rated operating parameter information and the parameter fluctuation range of the compressor under normal operation; the parameter value range corresponding to the critical range can be determined based on the compressor's critical operating parameters; and the parameter value range corresponding to the danger range can be determined based on the compressor's maximum allowable operating parameters.

[0124] In the above embodiments, the parameter value range corresponding to each preset graded control range can be determined based on the performance parameter information of the vehicle's compressor, thereby enabling the determination of a more flexible parameter value range and a control range that better matches the real-time parameter information (or predicted parameter information).

[0125] S204. Control the operation of the compressor according to at least one of the first hierarchical control strategy of the first control zone and the second hierarchical control strategy of the second control zone.

[0126] For example, if the first hierarchical control strategy and the second hierarchical control strategy are different, the first control strategy can be adjusted according to the second hierarchical control strategy to control the operation of the compressor.

[0127] For example, if the first level control strategy is determined to be "limit the speed increase" and the second level control strategy is "the speed decreases by 100 revolutions per second", then the first control strategy can be adjusted according to the second level control strategy. For example, the first level control strategy can be adjusted to "limit the speed increase and decrease the speed by 10 revolutions per second", thereby enabling early intervention of the compressor.

[0128] Furthermore, the aforementioned multiple preset hierarchical control intervals can be divided into advance control intervals and non-advance control intervals. For example, the aforementioned safe intervals and warning intervals can be divided into non-advance control intervals, while the critical intervals and danger intervals can be divided into advance control intervals. This allows for advance control of the compressor when the real-time parameter information and / or predicted parameter information are within the advance control intervals, enabling early intervention of the compressor and preventing the compressor's safe operating parameters from exceeding the safety boundaries.

[0129] Based on this, if it is determined that both the first control interval and the second control interval are non-advance control intervals, or if it is determined that the first control interval is an advance control interval and the second control interval is a non-advance control interval, then the operation of the compressor is controlled according to the first hierarchical control strategy.

[0130] If it is determined that the first control interval is a non-advance control interval and the second control interval is an advance control interval, or if it is determined that both the first and second control intervals are advance control intervals, then after performing control enhancement processing on the first level control strategy according to the second level control strategy, the compressor operation is controlled according to the enhanced first level control strategy.

[0131] In one example, the second-level control strategy can be adjusted and superimposed on the first-level control strategy to enhance the control of the first-level control strategy. For instance, if the first-level control strategy is determined to be "limit the speed increase" and the second-level control strategy is "decrease the speed by 100 revolutions per second", then the second-level control strategy can be adjusted to "decrease the speed by 10 revolutions per second" and superimposed on the first control strategy, resulting in an enhanced first-level control strategy of "limiting the speed increase and decreasing the speed by 10 revolutions per second".

[0132] In one possible implementation, after controlling the operation of the compressor according to the above steps, the embodiments of this application can further adjust the compressor control strategy based on the compressor operation feedback results, thereby ensuring the effectiveness of compressor control, as described in the process below.

[0133] S205. Obtain new real-time parameter information.

[0134] In one example, the new real-time parameter information indicates the new safe operating parameters detected after the compressor operation has been adjusted according to the control strategy.

[0135] S206. Determine the difference between the new real-time parameter information and the real-time parameter information of the previous moment.

[0136] S207. If it is determined that the difference value does not meet the compressor control requirements, then the third-level control strategy is determined.

[0137] In one example, the compressor control requirement can indicate that the control interval matching the new real-time parameter information is the target control interval. In this case, the difference between the new real-time parameter information and the previous real-time parameter information can be determined based on the difference between the new real-time parameter information and the maximum value in the parameter value interval corresponding to the target control interval, thus determining whether the compressor control requirement is met. The target control interval can be the aforementioned non-advance control interval, or it can be the aforementioned safety interval and / or warning interval.

[0138] In another example, compressor control requirements can also be understood as requirements to reduce operating parameters or requirements to maintain operating parameters.

[0139] The specific requirements for compressor control are not limited here, and should be based on actual needs.

[0140] In one example, the third-level control strategy can be used to ensure that the new real-time parameter information meets the compressor control requirements. For example, if the compressor speed is controlled to decrease by 100 revolutions per second according to the above steps, and if it is determined that the difference between the new real-time parameter information and the real-time parameter information at the previous moment does not meet the compressor control requirements, then the third-level control strategy can be determined as: increasing the frequency and / or amplitude of the compressor speed decrease.

[0141] S208. Control the operation of the compressor according to the third-level control strategy.

[0142] For example, if the current compressor control mode is "limit speed increase", then the third-level control strategy can be "speed decrease by 100 revolutions per second"; if the current compressor control mode is "speed decrease by 100 revolutions per second", then the third-level control strategy can be "speed decrease by 200 revolutions per second".

[0143] In the above embodiments, the compressor's operation control results can be used to determine whether the current compressor control meets the compressor control requirements. If not, the compressor control strategy can be adjusted in a timely manner to achieve effective compressor control.

[0144] In one possible implementation, the compressor hierarchical control method can be modularly designed, allowing it to be independently deployed in the heat pump controller or vehicle controller. This enables rapid adaptation to different vehicle models and compressor types, thereby broadening the application scenarios of the compressor hierarchical control method and improving its robustness.

[0145] Figure 3 This is a schematic diagram of the structure of a compressor staged control device provided in an embodiment of this application, as shown below. Figure 3 As shown, the compressor staged control device 30 provided in this embodiment includes:

[0146] The acquisition unit 301 is used to acquire real-time parameter information and predicted parameter information during the operation of the vehicle's compressor; wherein the parameter information indicates the safe operating parameters of the compressor.

[0147] The determining unit 302 is used to determine a first control interval that matches real-time parameter information and a second control interval that matches predicted parameter information from a plurality of preset hierarchical control intervals; wherein each preset hierarchical control interval has a corresponding hierarchical control strategy.

[0148] The control unit 303 is used to control the operation of the compressor according to at least one of a first hierarchical control strategy of the first control interval and a second hierarchical control strategy of the second control interval.

[0149] In one possible implementation, the multiple preset hierarchical control intervals include: a safe interval, a warning interval, a critical interval, and a danger interval; wherein,

[0150] The safety zone has a hierarchical control strategy that is a normal operation strategy;

[0151] The warning interval has a graded control strategy that limits the increase in rotational speed;

[0152] The graded control strategy for the critical range is a speed reduction strategy;

[0153] The graded control strategy for the hazardous area is to shut down the compressor.

[0154] In one possible implementation, each preset hierarchical control interval has a corresponding parameter value interval; in this case, the determining unit 302 is used to:

[0155] Based on the first parameter value range to which the real-time parameter information belongs, the first control range is determined from multiple preset hierarchical control ranges;

[0156] Based on the second parameter value range to which the predicted parameter information belongs, the second control interval is determined from multiple preset hierarchical control intervals.

[0157] In one possible implementation, the device is also used for:

[0158] Obtain the performance parameter information of the vehicle's compressor;

[0159] Based on the performance parameter information, determine the parameter value range corresponding to each preset graded control range.

[0160] In one possible implementation, multiple preset hierarchical control intervals are divided into advance control intervals and non-advance control intervals; wherein, the non-advance control intervals include safety intervals and warning intervals; the advance control intervals include critical intervals and danger intervals; in this case, the control unit 303 is used to:

[0161] If it is determined that both the first control interval and the second control interval are non-advance control intervals, or if it is determined that the first control interval is an advance control interval and the second control interval is a non-advance control interval, then the operation of the compressor is controlled according to the first hierarchical control strategy.

[0162] If it is determined that the first control interval is a non-advance control interval and the second control interval is an advance control interval, or if it is determined that both the first and second control intervals are advance control intervals, then after performing control enhancement processing on the first level control strategy according to the second level control strategy, the compressor operation is controlled according to the enhanced first level control strategy.

[0163] In one possible implementation, the acquisition unit 301 is used for:

[0164] Real-time monitoring of the rate of change of real-time parameter information, and determination of predicted parameter information based on the rate of change of real-time parameter information; or

[0165] Obtain vehicle operating status information and determine prediction parameter information based on the operating status information.

[0166] In one possible implementation, after controlling the operation of the compressor, the device is further used for:

[0167] Obtain new real-time parameter information;

[0168] Determine the difference between the new real-time parameter information and the real-time parameter information of the previous moment;

[0169] If it is determined that the difference value does not meet the compressor control requirements, then the third-level control strategy is determined;

[0170] The compressor operation is controlled according to the third-level control strategy.

[0171] The compressor staged control device provided in this embodiment can execute the method provided in the above method embodiment. Its implementation principle and technical effect are similar, and will not be described in detail here.

[0172] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 4 As shown, the electronic device 40 provided in this embodiment includes at least one processor 401 and a memory 402. Optionally, the electronic device 40 further includes a communication component 403. The processor 401, memory 402, and communication component 403 are connected via a bus 404.

[0173] In a specific implementation, at least one processor 401 executes computer execution instructions stored in memory 402, causing at least one processor 401 to perform the above-described method.

[0174] The specific implementation process of processor 401 can be found in the above method embodiments, and its implementation principle and technical effect are similar. It will not be repeated here.

[0175] In the above embodiments, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0176] The memory may include random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device.

[0177] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0178] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described method.

[0179] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the above-described method.

[0180] The aforementioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0181] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0182] The division of units is merely a logical functional division; in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0183] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0184] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0185] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause an electronic device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0186] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0187] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A method for graded control of a compressor, characterized in that, include: During the operation of the vehicle's compressor, real-time parameter information and predicted parameter information are acquired; wherein, the parameter information indicates the safe operating parameters of the compressor; From multiple preset hierarchical control intervals, a first control interval matching the real-time parameter information is determined, and a second control interval matching the predicted parameter information is determined; wherein, each preset hierarchical control interval has a corresponding hierarchical control strategy; The compressor is controlled to operate according to at least one of the first hierarchical control strategy of the first control zone and the second hierarchical control strategy of the second control zone; The multiple preset hierarchical control intervals include: a safe interval, a warning interval, a critical interval, and a danger interval; wherein, The hierarchical control strategy of the safety zone is a normal operation strategy; The warning interval has a graded control strategy that limits the increase in rotational speed; The critical range has a graded control strategy of speed reduction; The graded control strategy for the dangerous zone is a compressor shutdown strategy; The plurality of preset hierarchical control intervals are divided into advance control intervals and non-advance control intervals; wherein, the non-advance control interval includes the safety interval and the warning interval; the advance control interval includes the critical interval and the danger interval; the operation of the compressor is controlled according to at least one of the first hierarchical control strategy of the first control interval and the second hierarchical control strategy of the second control interval, including: If it is determined that both the first control interval and the second control interval are non-advance control intervals, or if it is determined that the first control interval is the advance control interval and the second control interval is the non-advance control interval, then the operation of the compressor is controlled according to the first hierarchical control strategy. If it is determined that the first control interval is the non-advance control interval and the second control interval is the advance control interval, or if it is determined that both the first control interval and the second control interval are the advance control intervals, then after performing control enhancement processing on the first hierarchical control strategy according to the second hierarchical control strategy, the operation of the compressor is controlled according to the enhanced first hierarchical control strategy. After controlling the operation of the compressor, the method further includes: Obtain new real-time parameter information; Determine the difference between the new real-time parameter information and the real-time parameter information at the previous moment; If it is determined that the difference does not meet the compressor control requirements, then a third-level control strategy is determined. The operation of the compressor is controlled according to the third-level control strategy.

2. The method according to claim 1, characterized in that, Each of the preset hierarchical control intervals has a corresponding parameter value interval; from multiple preset hierarchical control intervals, a first control interval matching the real-time parameter information is determined, and a second control interval matching the predicted parameter information is determined, including: Based on the first parameter value range to which the real-time parameter information belongs, the first control range is determined from the plurality of preset hierarchical control ranges; Based on the second parameter value range to which the predicted parameter information belongs, the second control interval is determined from the plurality of preset hierarchical control intervals.

3. The method according to claim 2, characterized in that, The method further includes: Obtain the performance parameter information of the vehicle's compressor; Based on the performance parameter information, determine the parameter value range corresponding to each preset graded control range.

4. The method according to claim 1, characterized in that, Obtain prediction parameter information, including: The rate of change of the real-time parameter information is monitored in real time, and the predicted parameter information is determined based on the rate of change of the real-time parameter information; or The vehicle's operating status information is obtained, and the prediction parameter information is determined based on the operating status information.

5. A compressor staged control device, characterized in that, The apparatus is used to implement the method as described in any one of claims 1-4.

6. An electronic device, characterized in that, include: Memory, processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory, causing the processor to perform the method as described in any one of claims 1-4.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in any one of claims 1-4.

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