Special vehicle energy management system control method, device and equipment and storage medium

Abstract

The invention relates to a special vehicle energy management system control method, device and equipment and a storage medium, and belongs to the technical field of vehicle power supply management. The control method comprises the steps of judging power supply conditions of a generator system and a power battery pack; the generator system comprises a power take-off generator and a diesel generator; if the generator system supplies power, whether the maximum operation power of the air conditioning system and the maximum charging power of the power battery pack are limited or not is judged according to the operation condition of the air conditioning system; if the power battery pack supplies power, operation of the air conditioning system is stopped. According to the control method, the maximum output power of the vehicle power supply system can be considered on the premise that the total power is prevented from exceeding the limit, so that the vehicle power supply system can better adapt to different power supply modes, and the utilization efficiency of electric power resources of the whole vehicle is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle power supply management technology, specifically to control methods, devices, equipment, and storage media for energy management systems of special vehicles. Background Technology

[0002] With the rapid development of automotive technology, the functions of special vehicles (such as military command vehicles, medical ambulances, and engineering rescue vehicles) are becoming increasingly complex, integrating a variety of high-power devices such as in-vehicle communication systems, driver assistance systems, temperature regulation and control, safety monitoring, and personnel support systems. These systems require continuous electrical energy consumption during vehicle operation. To meet the power needs during parking operations or standby, special vehicles are typically equipped with power battery packs as energy storage devices. Simultaneously, to enhance the power output capacity during driving, diesel generator sets and power take-off generator sets are also required to provide additional electrical energy.

[0003] However, limited by the weight and power limitations of current generator manufacturing technology, as well as the volume and weight constraints of power battery energy storage capacity, the generator's output power cannot fully cover the needs of all equipment operating simultaneously, and the power battery's energy storage capacity cannot support full-load operation for extended periods. For example, in field operation scenarios, when the air conditioning system, communication equipment, and power battery charging are started simultaneously, the system is highly susceptible to triggering power outage protection due to total power exceeding limits, leading to critical communication interruptions or safety system failures, seriously threatening vehicle operational safety. Furthermore, existing energy management systems are mostly designed for single power systems (such as pure fuel or pure electric drive), lacking versatility and real-time adaptability. They cannot dynamically optimize power distribution when switching between multiple power supply modes such as generators, power batteries, and mains power, resulting in complex control logic, delayed response, and difficulty in achieving efficient utilization and stable guarantee of the vehicle's power resources. Summary of the Invention

[0004] This application provides a control method, device, equipment, and storage medium for a special vehicle energy management system, which can solve the problem in the prior art that, when the total power of the power supply system of a special vehicle is limited, the lack of a reasonable energy management method makes it impossible to balance the maximum output power and the prevention of the total power exceeding the limit.

[0005] In a first aspect, embodiments of this application provide a control method for a special vehicle energy management system, including: Determine the power supply status of the generator system and the power battery pack; the generator system includes a power take-off generator and a diesel generator; If the generator system is supplying power, determine whether to limit the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack based on the operating status of the air conditioning system; if the power battery pack is supplying power, stop the operation of the air conditioning system.

[0006] In some embodiments, if neither the generator system nor the power battery pack is supplying power, the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack are not limited.

[0007] In some embodiments, if the generator system is supplying power, the system determines whether to limit the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack based on the operating status of the air conditioning system. Specifically, this includes: If the air conditioning system is running, determine whether to limit the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack based on the actual charging current value of the power battery pack. If the air conditioning system is not running, there is no limit to the maximum charging power of the power battery pack.

[0008] In some embodiments, if the air conditioning system is running, based on the actual charging current value of the power battery pack, it is determined whether to limit the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack, specifically including: If the actual charging current of the power battery pack is greater than the first set threshold, the maximum charging power of the power battery pack will be set to the first set value. If the actual charging current of the power battery pack is less than or equal to the first set threshold, determine whether to limit the maximum operating power of the air conditioning system based on the output current value of the generator system at any time within the first set time.

[0009] In some embodiments, determining whether to limit the maximum operating power of the air conditioning system based on the output current value of the generator system at any time within a first set time period specifically includes: If the output current value of the generator system is greater than the second set threshold at any time within the first set time, the maximum operating power of the air conditioning system will be set to the second set value. If the output current value of the generator system is less than or equal to the second set threshold at any time within the first set time period, the maximum operating power of the air conditioning system is not limited.

[0010] In some embodiments, if the output current value of the generator system at any time within a first set time period is greater than a second set threshold, after setting the maximum operating power of the air conditioning system to the second set value, the method further includes: If the output current value of the generator system is less than the third set threshold at any time within the second set time period, the maximum operating power of the air conditioning system is not limited. If the output current value of the generator system at any time within the second set time period is greater than or equal to the third set threshold, then it is determined again whether the output current value of the generator system at any time within the first set time period is greater than the second set threshold.

[0011] In some embodiments, determining the power supply status of the generator system and the power battery pack specifically includes: If the output current value of the power take-off generator or diesel generator is greater than the fourth set threshold at any time within the third set time period, it is determined that the generator system is supplying power; otherwise, it is determined that the generator system is not supplying power. If the output current value of the power battery pack is greater than the fifth set threshold at any time within the fourth set time period, it is determined that the power battery pack is supplying power; otherwise, it is determined that the power battery pack is not supplying power.

[0012] Secondly, embodiments of this application also provide a control device for a special vehicle energy management system, comprising: The information acquisition module is used to collect the output current value of the generator system, the charging current value of the power battery pack, and the operating power of the air conditioning system. The analysis and judgment module is used to determine whether the generator system and power battery pack are supplying power, and to monitor whether the air conditioning system is running and whether the power battery pack is charging. The control module is used to control the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack; The communication module is used to transmit the information obtained by the analysis and judgment module to the control module.

[0013] Thirdly, embodiments of this application also provide a special vehicle energy management device, the special vehicle energy management device including a processor, a memory, and a special vehicle energy management control program stored in the memory and executable by the processor, wherein when the special vehicle energy management control program is executed by the processor, it implements the steps of the special vehicle energy management system control method as described in any of the above claims.

[0014] Fourthly, embodiments of this application also provide a computer-readable storage medium storing a special vehicle energy management control program, wherein when the special vehicle energy management control program is executed by a processor, it implements the steps of the special vehicle energy management system control method as described in any of the preceding claims.

[0015] The beneficial effects of the technical solutions provided in this application include: This application provides a control method, apparatus, device, and storage medium for a special vehicle energy management system. The control method includes: Determine the power supply status of the generator system and the power battery pack; the generator system includes a power take-off generator and a diesel generator; If the generator system is supplying power, determine whether to limit the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack based on the operating status of the air conditioning system; if the power battery pack is supplying power, stop the operation of the air conditioning system.

[0016] This control method develops separate strategies for two different power supply modes: the generator system and the battery pack. When the generator system is supplying power, the maximum operating power of the air conditioning system and the maximum charging power of the battery pack are flexibly adjusted based on the system's operation, thus rationally allocating power resources. When the battery pack is supplying power, the air conditioning system is shut down to prioritize the power needs of other potentially more critical equipment. This dynamic adjustment and rational allocation approach, while avoiding exceeding total power limits, ensures the maximum output power of the vehicle's power supply systems (generator system and battery pack), enabling them to better adapt to different power supply modes and improving the overall efficiency of vehicle power resource utilization.

[0017] In field operations, when the air conditioning system, communication equipment, and power battery charging are all activated simultaneously, the system is highly susceptible to triggering power-off protection due to excessive total power, leading to critical communication interruptions or safety system failures, seriously threatening vehicle operational safety. This control method addresses this by assessing the power supply status of the generator system and power battery pack and taking corresponding measures. When the generator system is supplying power, it determines whether to limit the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack based on the system's operation; when the power battery pack is supplying power, it stops the air conditioning system. These measures effectively control the power of each system, preventing the total power from exceeding limits, thus preventing power-off protection caused by over-limit power, ensuring the normal operation of critical vehicle systems, and improving vehicle operational safety.

[0018] Existing energy management systems are mostly designed for single power systems, lacking versatility and real-time adaptability. They cannot dynamically optimize power distribution when switching between multiple power supply modes, resulting in complex control logic, slow response, and difficulty in achieving efficient utilization of the vehicle's power resources.

[0019] Special vehicles operate in complex and diverse environments, with significant differences in power requirements across various systems. This control method, by assessing power supply conditions and implementing corresponding measures, better adapts to different operating scenarios and power demands. For example, when the generator system is supplying power and the air conditioning system's operational needs are low, the charging power of the battery pack can be appropriately increased to fully utilize the electricity generated by the generator; conversely, when the battery pack is supplying power, the air conditioning system can be shut down to address situations where the battery's power supply capacity is limited. This flexible adjustment strategy, based on actual conditions, enhances the system's adaptability to different scenarios. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A diagram illustrating the overall method steps provided in the embodiments of this application; Figure 2 This is a schematic diagram of the complete method flow of this application. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0023] This application provides a control method, device, equipment, and storage medium for a special vehicle energy management system. It can solve the problem in the prior art that, when the total power of the power supply system of a special vehicle is limited, the lack of a reasonable energy management method makes it impossible to balance the maximum output power and the prevention of the total power exceeding the limit.

[0024] See Figure 1 As shown, in a first aspect, embodiments of this application provide a control method for a special vehicle energy management system, comprising: S1. Determine the power supply status of the generator system and the power battery pack; the generator system includes a power take-off generator and a diesel generator. S2. If the generator system is supplying power, determine whether to limit the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack based on the operating status of the air conditioning system; if the power battery pack is supplying power, stop the operation of the air conditioning system.

[0025] This control method develops separate strategies for two different power supply modes: the generator system and the battery pack. When the generator system is supplying power, the maximum operating power of the air conditioning system and the maximum charging power of the battery pack are flexibly adjusted based on the system's operation, thus rationally allocating power resources. When the battery pack is supplying power, the air conditioning system is shut down to prioritize the power needs of other potentially more critical equipment. This dynamic adjustment and rational allocation approach, while avoiding exceeding total power limits, ensures the maximum output power of the vehicle's power supply systems (generator system and battery pack), enabling them to better adapt to different power supply modes and improving the overall efficiency of vehicle power resource utilization.

[0026] In field operations, when the air conditioning system, communication equipment, and power battery charging are all activated simultaneously, the system is highly susceptible to triggering power-off protection due to excessive total power, leading to critical communication interruptions or safety system failures, seriously threatening vehicle operational safety. This control method addresses this by assessing the power supply status of the generator system and power battery pack and taking corresponding measures. When the generator system is supplying power, it determines whether to limit the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack based on the system's operation; when the power battery pack is supplying power, it stops the air conditioning system. These measures effectively control the power of each system, preventing the total power from exceeding limits, thus preventing power-off protection caused by over-limit power, ensuring the normal operation of critical vehicle systems, and improving vehicle operational safety.

[0027] Existing energy management systems are mostly designed for single power systems, lacking versatility and real-time adaptability. They cannot dynamically optimize power distribution when switching between multiple power supply modes, resulting in complex control logic, slow response, and difficulty in achieving efficient utilization of the vehicle's power resources.

[0028] Special vehicles operate in complex and diverse environments, with significant differences in power requirements across various systems. This control method, by assessing power supply conditions and implementing corresponding measures, better adapts to different operating scenarios and power demands. For example, when the generator system is supplying power and the air conditioning system's operational needs are low, the charging power of the battery pack can be appropriately increased to fully utilize the electricity generated by the generator; conversely, when the battery pack is supplying power, the air conditioning system can be shut down to address situations where the battery's power supply capacity is limited. This flexible adjustment strategy, based on actual conditions, enhances the system's adaptability to different scenarios.

[0029] In practical use, vehicle loads can be categorized into essential loads, auxiliary loads, and backup loads. Essential loads are electrical loads that must operate under all working conditions and environmental circumstances to fulfill the specific functions of the vehicle. Essential loads include communication systems, safety systems, and vehicle control systems. Auxiliary loads are loads that provide functions such as display, navigation, and lighting in addition to fulfilling essential functions. Auxiliary loads include display systems, navigation systems, and lighting system equipment. Backup loads are loads that need to be activated under specific environmental conditions to ensure the normal operation of the vehicle's essential functions. Backup loads include air conditioning systems (insulated cabin air conditioning, driver's cab air conditioning), and power battery pack charging.

[0030] Under normal circumstances, essential and auxiliary loads are activated. If backup loads are also activated at this time, the system is highly susceptible to triggering power-off protection due to total power exceeding limits, leading to critical communication interruptions or safety system failures, seriously threatening vehicle operational safety. Therefore, it is necessary to control the power consumption of backup loads (mainly including the air conditioning system and the charging of the power battery pack) to ensure that the maximum output power of the vehicle's power supply system (generator system and power battery pack) is maximized while avoiding total power exceeding limits, enabling it to better adapt to different power supply modes and improve the overall efficiency of vehicle power resource utilization.

[0031] In some alternative embodiments, if neither the generator system nor the battery pack is supplying power, the maximum operating power of the air conditioning system and the maximum charging power of the battery pack are not limited. When neither the generator system nor the battery pack is supplying power, it is determined that the system is using mains power, and the maximum operating power of the air conditioning system and the maximum charging power of the battery pack are not limited. The technical advantage of this is that, under this specific power supply state (using mains power), the system does not need to consider the impact of power distribution on other components. The air conditioning system can operate at maximum power, providing users with stronger cooling or heating effects and improving the user experience; at the same time, the battery pack can also receive charging at maximum charging power, accelerating the charging speed and improving energy utilization efficiency.

[0032] In practice, the generator system and the power battery pack will not supply power simultaneously. If either of them is supplying power, the control method of this application shall apply. A distribution box is installed on the special vehicle, which integrates a rectifier module to rectify the mains power into high-voltage DC. The distribution box is connected in parallel with the generator system and the power battery pack to form a triple-redundant power supply, meeting the needs of various usage scenarios such as mains power in the factory, standby in the field, and transportation. In this embodiment, when the special vehicle is in a power-consuming state, if it is detected that neither the generator system nor the power battery pack is supplying power, it is determined that the system is using the mains power through the distribution box, which will not affect the power supply of the generator system and the power battery pack. Therefore, the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack are not limited.

[0033] In some optional embodiments, if the generator system is supplying power, the system determines whether to limit the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack based on the operating status of the air conditioning system. Specifically, this includes: If the air conditioning system is running, determine whether to limit the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack based on the actual charging current value of the power battery pack. If the air conditioning system is not running, there is no limit to the maximum charging power of the power battery pack.

[0034] When the generator system is supplying power, this scheme determines whether to limit relevant power based on whether the air conditioning system is running. If the air conditioning system is not running, the maximum charging power of the power battery pack is not limited. This allows the power battery pack to charge as quickly as possible without affecting air conditioning use, fully utilizing the generator system's power supply capacity. If the air conditioning system is running, the scheme further determines whether to limit power based on the actual charging current value of the power battery pack. This tiered approach allows for more precise power management based on the actual system status, avoiding overload issues caused by simultaneous air conditioning operation and power battery charging, thus ensuring stable system operation.

[0035] In some optional embodiments, if the air conditioning system is running, based on the actual charging current value of the power battery pack, it is determined whether to limit the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack, specifically including: If the actual charging current of the power battery pack is greater than the first set threshold (which can be set to 3A in practice), the maximum charging power of the power battery pack is set to the first set value (the power value calculated with a current value of 3A). If the actual charging current of the power battery pack is less than or equal to the first set threshold, determine whether to limit the maximum operating power of the air conditioning system based on the output current value of the generator system at any time within the first set time.

[0036] When the air conditioning system is running, the actual charging current of the power battery pack is used as the basis for judgment. When the actual charging current exceeds a first set threshold (which can be set to 3A in practice), the maximum charging power of the power battery pack is set to the first set value (the power value calculated based on a current of 3A). This effectively prevents excessive charging current from damaging the battery, extends battery life, and helps maintain the power balance of the entire system. When the actual charging current is less than or equal to the first set threshold, the output current value of the generator system at any time within a first set time (which can be set to 5s in practice) is used to determine whether to limit the maximum operating power of the air conditioning system. This multi-factor comprehensive judgment method can more rationally allocate system power, ensuring the safe charging of the power battery pack while meeting the operating needs of the air conditioning system as much as possible.

[0037] In some optional embodiments, determining whether to limit the maximum operating power of the air conditioning system based on the output current value of the generator system at any time within a first set time period specifically includes: If the output current value of the generator system is greater than the second set threshold (38A in practice) at any time within the first set time (which can be set to 5s in practice), the maximum operating power of the air conditioning system is set to the second set value (12kW in practice). If the output current value of the generator system is less than or equal to the second set threshold (which can be set to 38A in practice) at any time within the first set time (which can be set to 5s in practice), the maximum operating power of the air conditioning system is not limited.

[0038] The decision to limit the maximum operating power of the air conditioning system is made by comparing the output current value of the generator system at any time within a first set time period with a second set threshold. If the output current value is greater than the second set threshold, it indicates that the current output power of the generator system is high and may be approaching or reaching its load limit. In this case, setting the maximum operating power of the air conditioning system to the second set value can reduce the power consumption of the air conditioning system, avoid overloading the generator system, and ensure the stable operation of the generator system and the safety of the entire system. If the output current value is less than or equal to the second set threshold, the maximum operating power of the air conditioning system is not limited, allowing the air conditioning system to operate normally according to user needs, improving system flexibility and user experience.

[0039] In some optional embodiments, if the output current value of the generator system at any time within a first set time period is greater than a second set threshold, after setting the maximum operating power of the air conditioning system to the second set value, the method further includes: If the output current value of the generator system is less than the third set threshold (which can be set to 32A in practice) at any time within the second set time (which can be set to 60s in practice), the maximum operating power of the air conditioning system is not limited. If the output current value of the generator system at any time within the second set time (which can be set to 60s in practice) is greater than or equal to the third set threshold (which can be set to 32A in practice), then it is determined again whether the output current value of the generator system at any time within the first set time (which can be set to 5s in practice) is greater than the second set threshold (which can be set to 38A in practice).

[0040] After setting the maximum operating power of the air conditioning system to the second preset value (in practice, it can be set to 12kW), the relationship between the output current value of the generator system at any time within the second preset time (in practice, it can be set to 60s) and the third preset threshold (in practice, it can be set to 32A) is further monitored. If the output current value is less than the third preset threshold, it indicates that the load on the generator system has been reduced. At this time, the maximum operating power of the air conditioning system is not limited, and the air conditioning system can resume operation at a higher power to better meet user needs. If the output current value is greater than or equal to the third preset threshold, the output current value of the generator system at any time within the first preset time is again checked to see if it is greater than the second preset threshold. This cyclical judgment mechanism can adjust the operating power of the air conditioning system in real time and dynamically according to the changes in the output power of the generator system, so that the system can maintain a reasonable power distribution under different operating conditions, improving the stability and adaptability of the system.

[0041] In some optional embodiments, determining the power supply status of the generator system and the power battery pack specifically includes: If the output current value of the power take-off generator or diesel generator is greater than the fourth set threshold (which can be set to 2A in practice) at any time within the third set time (which can be set to 10s in practice), it is determined that the generator system is supplying power; otherwise, it is determined that the generator system is not supplying power. If the output current value of the power battery pack is greater than the fifth set threshold (which can be set to 2A in practice) at any time within the fourth set time (which can be set to 10s in practice), it is determined that the power battery pack is supplying power; otherwise, it is determined that the power battery pack is not supplying power.

[0042] By setting specific time ranges and current thresholds, the output current of the power take-off generator (PTO) or diesel generator, as well as the power battery pack, is monitored and judged to accurately determine whether the generator system (including the PTO and diesel generator, one of which will supply power) and the power battery pack are in a power supply state. This judgment method has clear standards and operability, and can provide an accurate basis for subsequent adoption of corresponding power management strategies based on different power supply conditions. This ensures that the entire system can perform reasonable power allocation and operation control according to the actual power source and status, thereby improving the reliability and stability of the system.

[0043] The diesel generator and power take-off generator mentioned in this application can be other forms of power generation and supply equipment such as gas turbines, fuel cells, and intelligent power units; the external mains power mentioned can be three-phase 380V AC mains power, or 220V mains power or other external high-power power generation and supply equipment; the power battery pack mentioned can be lead-acid batteries, or lithium batteries, supercapacitors and other energy storage equipment.

[0044] like Figure 2 In practical applications, after the power supply (distribution) system of a special vehicle starts normally, the air conditioning system will operate at maximum power by default when turned on. 1. Assess the overall power supply situation. Determine the power supply status of the generator system: If the output current value of the power take-off generator or diesel generator is greater than the fourth set threshold (2A) at any time within the third set time (10s), it is determined that the generator system is supplying power; otherwise, it is determined that the generator system is not supplying power.

[0045] Determine the power supply status of the battery pack: If the output current value of the power battery pack is greater than the fifth set threshold (2A) at any time within the fourth set time (10s), it is determined that the power battery pack is supplying power; otherwise, it is determined that the power battery pack is not supplying power.

[0046] 2. Handling under different power supply conditions (1) If the generator system is supplying power, determine the operation status of the air conditioning system; if the air conditioning system is not operating, the maximum charging power of the power battery pack is not limited.

[0047] If the air conditioning system is running, determine the actual charging current value of the power battery pack: if the actual charging current value of the power battery pack is greater than the first set threshold (3A), set the maximum charging power of the power battery pack to the first set value (the power value calculated with a current value of 3A).

[0048] If the actual charging current of the power battery pack is less than or equal to the first set threshold, the output current value of the generator system at any time within the first set time (5s) is determined; if the output current value of the generator system at any time within the first set time is less than or equal to the second set threshold (38A), the maximum operating power of the air conditioning system is not limited. If the output current value of the generator system is greater than the second set threshold (38A) at any time within the first set time, the maximum operating power of the air conditioning system will be set to the second set value (12kW). Next, the relationship between the output current value of the generator system at any time within the second set time (60s) and the third set threshold (32A) is further determined: if the output current value is less than the third set threshold, the maximum operating power of the air conditioning system is not limited; if the output current value is greater than or equal to the third set threshold, it is determined again whether the output current value of the generator system at any time within the first set time is greater than the second set threshold.

[0049] (2) If the power battery pack is supplying power, stop the operation of the air conditioning system (that is, adjust the maximum operating power of the air conditioning system to 0kW).

[0050] (3) If neither the generator system nor the power battery pack is supplying power, it is determined that the system is using mains power for supply, and the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack are not limited.

[0051] Secondly, embodiments of this application also provide a control device for a special vehicle energy management system, comprising: The information acquisition module is used to collect the output current value of the generator system, the charging current value of the power battery pack, and the operating power of the air conditioning system. The analysis and judgment module is used to determine whether the generator system and power battery pack are supplying power, and to monitor whether the air conditioning system is running and whether the power battery pack is charging. The control module is used to control the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack; The communication module is used to transmit the information obtained by the analysis and judgment module to the control module.

[0052] The control module of this application includes a host computer, and the power distribution control signal between the host computer and the distribution box is an I / O control signal, or it can be other control forms that can achieve the same power distribution control effect, such as PWM or bus communication; the generator system, power battery pack, distribution box and air conditioning system all use CAN communication; and the power information is uploaded to the host computer, which performs energy control management based on the power information.

[0053] Thirdly, embodiments of this application also provide a special vehicle energy management device, which includes a processor, a memory, and a special vehicle energy management control program stored in the memory and executable by the processor. When the special vehicle energy management control program is executed by the processor, it implements the steps of the special vehicle energy management system control method as described above.

[0054] Fourthly, embodiments of this application also provide a computer-readable storage medium storing a special vehicle energy management control program, wherein when the special vehicle energy management control program is executed by a processor, it implements the steps of the special vehicle energy management system control method as described in any of the above claims.

[0055] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0056] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0057] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A control method for a special vehicle energy management system, characterized in that, include: Determine the power supply status of the generator system and the power battery pack; the generator system includes a power take-off generator and a diesel generator; If the generator system is supplying power, determine whether to limit the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack based on the operating status of the air conditioning system; if the power battery pack is supplying power, stop the operation of the air conditioning system.

2. The control method for the energy management system of special vehicles as described in claim 1, characterized in that: If neither the generator system nor the power battery pack is supplying power, there are no restrictions on the maximum operating power of the air conditioning system or the maximum charging power of the power battery pack.

3. The control method for the energy management system of special vehicles as described in claim 1, characterized in that, If the generator system is supplying power, determine whether to limit the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack based on the operating status of the air conditioning system. Specifically, this includes: If the air conditioning system is running, determine whether to limit the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack based on the actual charging current value of the power battery pack. If the air conditioning system is not running, there is no limit to the maximum charging power of the power battery pack.

4. The control method for the energy management system of special vehicles as described in claim 3, characterized in that, If the air conditioning system is running, based on the actual charging current of the power battery pack, determine whether to limit the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack, specifically including: If the actual charging current of the power battery pack is greater than the first set threshold, the maximum charging power of the power battery pack will be set to the first set value. If the actual charging current of the power battery pack is less than or equal to the first set threshold, determine whether to limit the maximum operating power of the air conditioning system based on the output current value of the generator system at any time within the first set time.

5. The control method for the energy management system of special vehicles as described in claim 4, characterized in that, Based on the output current value of the generator system at any time within a first set time period, determine whether to limit the maximum operating power of the air conditioning system, specifically including: If the output current value of the generator system is greater than the second set threshold at any time within the first set time, the maximum operating power of the air conditioning system will be set to the second set value. If the output current value of the generator system is less than or equal to the second set threshold at any time within the first set time period, the maximum operating power of the air conditioning system is not limited.

6. The control method for the energy management system of special vehicles as described in claim 5, characterized in that, If the output current value of the generator system at any time within a first set time period is greater than the second set threshold, after setting the maximum operating power of the air conditioning system to the second set value, the following steps are also included: If the output current value of the generator system is less than the third set threshold at any time within the second set time period, the maximum operating power of the air conditioning system is not limited. If the output current value of the generator system at any time within the second set time period is greater than or equal to the third set threshold, then it is determined again whether the output current value of the generator system at any time within the first set time period is greater than the second set threshold.

7. The control method for the energy management system of special vehicles as described in claim 1, characterized in that, Assessing the power supply status of the generator system and battery pack includes: If the output current value of the power take-off generator or diesel generator is greater than the fourth set threshold at any time within the third set time period, it is determined that the generator system is supplying power; otherwise, it is determined that the generator system is not supplying power. If the output current value of the power battery pack is greater than the fifth set threshold at any time within the fourth set time period, it is determined that the power battery pack is supplying power; otherwise, it is determined that the power battery pack is not supplying power.

8. A control device for a special vehicle energy management system, characterized in that, include: The information acquisition module is used to collect the output current value of the generator system, the charging current value of the power battery pack, and the operating power of the air conditioning system. The analysis and judgment module is used to determine whether the generator system and power battery pack are supplying power, and to monitor whether the air conditioning system is running and whether the power battery pack is charging. The control module is used to control the maximum operating power of the air conditioning system and the maximum charging power of the power battery pack; The communication module is used to transmit the information obtained by the analysis and judgment module to the control module.

9. A special vehicle energy management device, characterized in that, The special vehicle energy management device includes a processor, a memory, and a special vehicle energy management control program stored in the memory and executable by the processor, wherein when the special vehicle energy management control program is executed by the processor, it implements the steps of the special vehicle energy management system control method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a special vehicle energy management control program, wherein when the special vehicle energy management control program is executed by a processor, it implements the steps of the special vehicle energy management system control method as described in any one of claims 1 to 7.

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