An intelligent power supplementing method, system, device and storage medium based on a commercial vehicle

Abstract

The application relates to the technical field of vehicles and provides an intelligent power supplementing method, system and device based on a commercial vehicle and a storage medium. The method comprises the following steps: when the vehicle is in an ACC gear, controlling an ON gear relay to be in a closed state, so that a storage battery supplies power to high-voltage equipment of the vehicle and the high-voltage equipment is in a runnable state; wherein the high-voltage equipment comprises an air conditioner module; if the high-voltage equipment is in a running state, the power of the storage battery is monitored in real time, and when the power is lower than a preset power threshold, the vehicle power battery is controlled to supplement power to the storage battery; when the power battery supplements power to the storage battery, the power supplementing parameter of the power battery is adjusted according to the required power of the high-voltage equipment, so that the power of the storage battery is recovered and maintained within a preset safe range. Through the establishment of an active power supplementing channel under the ACC gear and the dynamic matching of the power supplementing power, the original vehicle air conditioner can be safely operated, a parking air conditioner does not need to be additionally installed, the cost is reduced, the comfort is improved, and the risk of power loss of the storage battery is avoided.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to an intelligent charging method, system, device, and storage medium for commercial vehicles. Background Technology

[0002] With the rapid development of the commercial vehicle industry, drivers' demands for vehicle comfort and convenience are increasing. Especially in logistics and transportation scenarios, drivers often need to use air conditioning while waiting to load or unload goods, resting at service areas, or parking at night to maintain a comfortable driving environment. However, the original air conditioning systems in commercial vehicles typically rely on the engine-driven compressor or high-voltage battery for power, and their operation is deeply tied to the vehicle's ignition position. How to meet the driver's air conditioning needs when the engine is off, while ensuring the safety of the vehicle's electrical system, has become a pressing technical challenge for the industry.

[0003] In the existing electrical architecture of commercial vehicles, the ACC (accessory mode) is mainly used to supply power to basic low-voltage electrical appliances such as audio systems, windows, and instruments when the engine is off. Its design aims to prevent excessive battery discharge, so it typically does not handle high-power loads such as air conditioning. While some new energy commercial vehicles are equipped with high-voltage electric air conditioners, their power supply circuit is coupled to the vehicle's main power battery circuit and can only be closed in the ON position or while the vehicle is in motion; the air conditioning system cannot be activated in the ACC position. In addition, some models meet the cooling and heating needs when the engine is off by installing an independent parking air conditioner. This device has an independent power supply circuit and control system, operating independently of the original vehicle air conditioning system; however, these methods have the following drawbacks: (1) Due to the power loss prevention design logic, the electrical architecture of the ACC mode only supports basic low-voltage power, which forces the original vehicle air conditioner and other high-power loads to be disabled in this mode. The driver cannot use the original vehicle air conditioner when parking and resting, which seriously affects the driving comfort. (2) Adding an independent parking air conditioner not only increases the cost of equipment procurement and installation, but also requires additional vehicle space. Furthermore, it has problems such as poor compatibility with the original vehicle system and inconvenient maintenance, which together lead to an increase in the user's vehicle usage cost. Summary of the Invention

[0004] This application provides a smart charging method, system, device, and storage medium for commercial vehicles, which solves the technical problem that the existing vehicle ACC mode electrical architecture avoids battery depletion and only supports basic low-voltage power, resulting in the forced disabling of high-power loads such as the original vehicle air conditioner in ACC mode, requiring users to install additional parking air conditioners, thus increasing vehicle operating costs.

[0005] Firstly, this application provides an intelligent charging method for commercial vehicles, comprising: When the vehicle is in ACC mode, the ON relay is closed, enabling the battery to supply power to the vehicle's high-voltage equipment, making the high-voltage equipment operational; the high-voltage equipment includes the air conditioning module. If the high-voltage equipment is in operation, the battery charge level is monitored in real time, and when the charge level is lower than the preset charge threshold, the vehicle's power battery is controlled to replenish the battery. When the power battery replenishes the storage battery, the power battery replenishment parameters are adjusted according to the power demand of the high-voltage equipment, so that the storage battery's charge can be restored and maintained within the preset safe range.

[0006] In conjunction with the first aspect, in one approach, the power battery charging parameters are adjusted according to the power demand of the high-voltage equipment, which includes the following steps: Real-time monitoring of battery voltage and state of charge to identify battery type; battery types include lead-acid batteries and low-voltage lithium batteries; Adjust the charging parameters according to the identified battery type; the charging parameters include charging voltage and charging current.

[0007] In conjunction with the first aspect, one approach also includes a temperature control strategy, which comprises the following steps: During the operation of the air conditioning module, the ambient temperature and battery temperature are monitored in real time. When the ambient temperature is lower than the preset low temperature threshold, the battery is preheated. Once the battery temperature rises to the preset charging temperature, the charging of the battery is performed or resumed. When the ambient temperature is higher than the preset high temperature threshold, the battery is cooled down and the charging current is reduced or the charging is suspended until the battery temperature drops back to the preset charging temperature, then the charging of the battery is resumed.

[0008] In conjunction with the first aspect, one solution also includes a power replenishment exit strategy, which comprises the following steps: When the battery charge is detected to have recovered to the preset safety limit, or the vehicle gear is detected to have shifted from ACC to another gear, or a door unlock signal is received, or the charging duration exceeds the preset maximum allowable duration, the charging channel is disconnected and charging stops, and a charging end prompt message is sent to the user's terminal at the same time.

[0009] In conjunction with the first aspect, one solution also includes an air conditioning safety start-up strategy, which comprises the following steps: When starting the high-voltage equipment, if the battery charge is lower than the preset minimum threshold, the operation of the high-voltage equipment will be temporarily suspended, and a charging channel from the vehicle's power battery to the battery will be established. The high-voltage equipment will start operating when the charge is higher than the preset minimum threshold.

[0010] In conjunction with the first aspect, one approach also includes a power supply parameter calibration strategy, which comprises the following steps: During the charging process, the charging is paused briefly every preset calibration cycle, and the open-circuit voltage of the battery is measured. The open-circuit voltage is then compared with the load voltage during the charging process to calculate the change in the battery's internal resistance. The compensation voltage and compensation current are adjusted in real time based on changes in internal resistance.

[0011] In conjunction with the first aspect, in one scheme, before controlling the vehicle's power battery to replenish the storage battery, a self-test is performed on the insulation resistance, voltage status, and communication link of the high-voltage system. If all self-test results are qualified, the establishment of the replenishment channel is allowed; if an abnormality is found in the self-test, the establishment of the replenishment channel is prohibited, and an alarm message is sent to the user.

[0012] Secondly, embodiments of this application provide an intelligent charging system for commercial vehicles, comprising: The monitoring module is used to control the ON relay to be closed when the vehicle is in ACC mode, so that the battery supplies power to the vehicle's high-voltage equipment and the high-voltage equipment is in an operational state; the high-voltage equipment includes the air conditioning module. The charging module is used to monitor the battery charge in real time when the high-voltage equipment is in operation, and control the vehicle's power battery to charge the battery when the charge is lower than a preset charge threshold. The adjustment module is used to adjust the power battery charging parameters according to the power demand of the high-voltage equipment when the power battery charges the storage battery, so that the storage battery charge can be restored and maintained within a preset safe range.

[0013] Thirdly, this application provides an intelligent charging device for commercial vehicles, which includes a processor, a memory, and an intelligent charging program for commercial vehicles stored in the memory and executable by the processor. When the intelligent charging program for commercial vehicles is executed by the processor, it implements the steps of the intelligent charging method for commercial vehicles as described in the first aspect.

[0014] Fourthly, this application provides a computer-readable storage medium storing a smart charging program for commercial vehicles, wherein when the smart charging program for commercial vehicles is executed by a processor, it implements the steps of the smart charging method for commercial vehicles as described in the first aspect.

[0015] The beneficial effects of the technical solution provided in this application include: This paper proposes an intelligent power replenishment method for commercial vehicles. Firstly, it actively controls the ON relay to close during ACC mode, overcoming the limitation of existing commercial vehicle electrical architectures where ACC mode only supports basic low-voltage power. This allows high-voltage equipment such as the original air conditioning unit to be activated and operational even when the engine is off, solving the problem of drivers being unable to use the original air conditioning while parked. Secondly, when the air conditioning unit or other high-voltage equipment is running, the battery level is monitored in real time. Once the battery level falls below a preset threshold, a power replenishment channel is immediately established from the power battery to the original battery, actively introducing external power to compensate and overcoming the safety hazard of battery depletion caused by operating high-power loads. Finally, after the power replenishment channel is established, the power replenishment is dynamically adjusted according to the actual operating power requirements of the high-voltage equipment, ensuring that the battery level remains within a preset safe range and guaranteeing a coordinated balance between power replenishment and power consumption. Through this control, the original vehicle air conditioning can operate safely and stably during ACC mode, eliminating the need for users to install an additional parking air conditioner, thereby reducing operating costs and improving driving comfort. Attached Figure Description

[0016] Figure 1 A flowchart illustrating the intelligent charging method for commercial vehicles provided in this application; Figure 2 A schematic diagram of the ACC gear electrical control system provided in this application; Figure 3 This is a schematic diagram of the air conditioner's working logic under ACC mode provided in this application; Figure 4 This is a schematic diagram of the hardware structure of the intelligent charging equipment based on commercial vehicles involved in the embodiments of this application. Detailed Implementation

[0017] 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.

[0018] To make the technical problem that this application aims to solve clearer, the causes of the technical problem will be analyzed in detail below: Traditional commercial vehicle electrical architecture positions the ACC mode as a mode that supplies only basic low-voltage power after the engine is turned off. In this mode, the alternator does not operate, and the battery is the sole source of power. To prevent excessive battery discharge, designers have adopted a one-size-fits-all approach, directly cutting off the power supply circuit for high-power loads such as the air conditioner. While this design maintains the minimum requirement of not running out of power, it fundamentally eliminates the possibility of using the original vehicle's air conditioning while in ACC mode.

[0019] In ACC mode, the battery is in a unidirectional discharge state, only discharging outwards and not inwards. Even if the vehicle is equipped with a power battery, its high-voltage electrical energy cannot be converted into low-voltage electricity to replenish the battery in ACC mode because the high-voltage system's power-on circuit is not activated, the DC / DC converter is not working, and there is no energy transfer channel between the power battery and the battery. Therefore, once the air conditioning is turned on, the battery charge will only continue to decrease, and depletion will inevitably occur.

[0020] Some users have opted to install a separate parking air conditioner to meet their needs, but this solution has problems such as high cost, space occupation, poor compatibility, and complex maintenance. It is a compromise solution that is externally mounted and does not fundamentally solve the structural defect that the original car air conditioner cannot be used in ACC mode.

[0021] In summary, the essence of the problem is that the existing ACC mode electrical architecture only aims to prevent power loss and adopts a passive prohibition strategy, without establishing an active power replenishment mechanism. This results in the original vehicle air conditioner being forcibly disabled in ACC mode, forcing users to install additional parking air conditioners, which increases costs and reduces comfort.

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0023] In one aspect, embodiments of this application provide an intelligent charging method for commercial vehicles.

[0024] In one embodiment, reference is made to Figures 1 to 3 , Figure 1 This is a flowchart illustrating the intelligent charging method for commercial vehicles based on this application. Figure 1 As shown, the intelligent charging method for commercial vehicles includes: S100. When the vehicle is in ACC mode, the ON position relay is closed, enabling the battery to supply power to the vehicle's high-voltage equipment, thus putting the high-voltage equipment into an operational state; the high-voltage equipment includes the air conditioning module. S200: If the high-voltage equipment is in operation, the battery charge level is monitored in real time, and when the charge level is lower than the preset charge threshold, the vehicle's power battery is controlled to replenish the battery. When the S300 power battery replenishes the storage battery, it adjusts the power battery replenishment parameters according to the power demand of the high-voltage equipment, so that the storage battery's charge can be restored and maintained within the preset safe range.

[0025] This method, which actively controls the ON relay to close in ACC mode, overcomes the limitation of existing commercial vehicle electrical architectures where ACC mode only supports basic low-voltage power. This allows high-voltage equipment such as the original air conditioning unit to be activated and operational even when the engine is off, solving the problem of the driver being unable to use the original air conditioning while parked. Secondly, when the air conditioning and other high-voltage equipment are running, the battery level is monitored in real time. If the level falls below a preset threshold, a charging channel is immediately established from the power battery to the original air conditioning unit, actively introducing external power to compensate and overcoming the safety hazard of battery depletion caused by operating high-power loads. Finally, after the charging channel is established, the charging power is dynamically adjusted according to the actual operating power requirements of the high-voltage equipment, ensuring that the battery level remains within a preset safe range and guaranteeing a coordinated balance between charging and power consumption. Through this control, the original air conditioning unit can operate safely and stably in ACC mode, eliminating the need for users to install an additional parking air conditioner, thus reducing operating costs and improving driving comfort.

[0026] Furthermore, in one embodiment, adjusting the power battery charging parameters according to the power demand of the high-voltage equipment includes the following steps: Real-time monitoring of battery voltage and state of charge to identify battery type; battery types include lead-acid batteries and low-voltage lithium batteries; Adjust the charging parameters according to the identified battery type; the charging parameters include charging voltage and charging current.

[0027] In this embodiment, the battery type is automatically determined through different detection methods. For lead-acid batteries, the system wakes up every hour and collects the battery voltage via a hard wire. When the voltage drops to 24.5V (corresponding to a SOC below 50%, parameters can be calibrated), a charging request is triggered, and the battery is identified as a lead-acid battery based on the vehicle identification number. For low-voltage lithium batteries, after the lithium battery wakes up autonomously, it sends a "charging request" message for 30 seconds, then listens silently for 20 seconds. If it does not enter charging mode, it goes into sleep mode. When the SOC drops to 45%, 40%, and 35% (parameters can be calibrated) and drops by 5% in a single instance, the request is triggered again. If the request is not triggered after 3 times, the function exits. At the same time, the lithium battery sends a charging voltage requirement via the CAN bus, and the system identifies it as a low-voltage lithium battery based on this. Based on the identification results, the system automatically adjusts the charging parameters: for lead-acid batteries, the target charging voltage is set to 27-28V, and the charging current is limited to an appropriate range; for low-voltage lithium batteries, the charging voltage is adjusted to 29-30V, and the corresponding charging current is matched according to their SOC-triggered charging characteristics. Through this differentiated identification and parameter adjustment based on different detection methods, precise charging of lead-acid and low-voltage lithium batteries is achieved, avoiding the problems of insufficient charging or overcharging caused by general strategies. This improves charging efficiency and extends battery life while ensuring air conditioning operation.

[0028] Furthermore, in one embodiment, a temperature control strategy is also included, which comprises the following steps: During the operation of the air conditioning module, the ambient temperature and battery temperature are monitored in real time. When the ambient temperature is lower than the preset low temperature threshold, the battery is preheated. Once the battery temperature rises to the preset charging temperature, the charging of the battery is performed or resumed. When the ambient temperature is higher than the preset high temperature threshold, the battery is cooled down and the charging current is reduced or the charging is suspended until the battery temperature drops back to the preset charging temperature, then the charging of the battery is resumed.

[0029] In this embodiment, the risks of low charging efficiency, lithium plating, or damage to active materials at low temperatures, as well as thermal runaway and accelerated capacity decay at high temperatures, are avoided, thereby improving charging efficiency and extending battery cycle life. Specifically, when the ambient temperature is as low as -10°C, the internal chemical reaction of the battery is slow; direct charging would not only be extremely inefficient but also easily cause irreversible damage. In this case, preheating the battery using a PTC heater or battery self-heating method, and then starting charging after the temperature rises to 10°C, ensures that the charging current is efficiently absorbed without damaging the battery. However, when the ambient temperature reaches 45°C, the battery temperature is too high, and charging would exacerbate heat generation, posing a risk of thermal runaway. In this case, a cooling fan or liquid cooling system is activated to cool the battery, and the charging current is temporarily reduced or charging is suspended. Charging is resumed after the temperature drops back to 35°C, thus ensuring the safety of the charging process. This temperature adaptive control ensures that the charging strategy can be reliably executed under different climatic conditions, providing a stable power guarantee for the continuous operation of the air conditioner in ACC mode.

[0030] Furthermore, in one embodiment, a power-off strategy is also included, which comprises the following steps: When the battery charge is detected to have recovered to the preset safety limit, or the vehicle gear is detected to have shifted from ACC to another gear, or a door unlock signal is received, or the charging duration exceeds the preset maximum allowable duration, the charging channel is disconnected and charging stops, and a charging end prompt message is sent to the user's terminal at the same time.

[0031] In this embodiment, the system avoids damage to the battery due to overcharging (such as electrolyte loss from overcharging of lead-acid batteries or thermal runaway from overcharging of lithium batteries), prevents safety hazards caused by the charging system remaining operational when the vehicle leaves, and promptly terminates charging when the user leaves the vehicle to save energy. The preset safety upper limit refers to the charging stop threshold set by the system. For example, for lead-acid batteries, charging is considered complete when the state of charge reaches 85%, at which point charging is stopped to avoid overcharging. The maximum allowable duration refers to the longest duration of a single charging operation. For example, for lead-acid batteries, it is set to 120 minutes to prevent indefinite charging due to power monitoring failure. A charging completion notification can be sent to the user via a charging completion icon displayed on the vehicle's dashboard or a push notification to the mobile app via T-BOX, informing the user that charging has ended and the battery status is normal. Through these multi-dimensional exit conditions and user interaction mechanisms, the safety of the charging process is ensured, further improving the intelligent charging closed-loop control of the air conditioning operation under ACC mode.

[0032] Furthermore, in one embodiment, an air conditioning safety start-up strategy is also included, which comprises the following steps: When starting the high-voltage equipment, if the battery charge is lower than the preset minimum threshold, the operation of the high-voltage equipment will be temporarily suspended, and a charging channel from the vehicle's power battery to the battery will be established. The high-voltage equipment will start operating when the charge is higher than the preset minimum threshold.

[0033] In this embodiment, the potential danger of starting a high-power load under low-power conditions is eliminated, ensuring that the battery has sufficient energy reserves to support the starting inrush current when the air conditioner starts. Simultaneously, it provides a time window for the power replenishment system to establish a power replenishment channel, making the air conditioner startup process smoother and more reliable. The preset minimum threshold refers to the minimum safe operating capacity of the battery set by the system. For example, for lead-acid batteries, when the state of charge is below 30%, it is considered a low-power risk area. If the user presses the air conditioner start button at this time, the system will not immediately respond to the air conditioner start command. Instead, it will first display a message on the dashboard indicating that the battery power is insufficient and that it is replenishing power, and establish a power replenishment channel. After replenishment to a state of charge above the preset minimum threshold of 30%, the system will automatically allow the air conditioner compressor or electric heater to start operating. The entire process requires no user intervention. Temporary suspension of operation does not completely prohibit equipment startup, but rather delays startup until the battery power recovers to a safe level. For example, in cold winter environments, the usable battery capacity may decrease due to low temperatures. The system will appropriately increase the preset minimum threshold to 40% to ensure sufficient power support when the air conditioner starts. This pre-emptive safety verification mechanism improves the intelligent power replenishment control process for air conditioning operation under ACC mode, enhancing system safety.

[0034] Furthermore, in one embodiment, a power compensation parameter calibration strategy is also included, which comprises the following steps: During the charging process, the charging is paused briefly every preset calibration cycle, and the open-circuit voltage of the battery is measured. The open-circuit voltage is then compared with the load voltage during the charging process to calculate the change in the battery's internal resistance. The compensation voltage and compensation current are adjusted in real time based on changes in internal resistance.

[0035] In this embodiment, the characteristic deviation of the battery caused by aging, temperature changes, or differences in operating conditions is compensated, ensuring that the charging parameters always match the battery's current actual state. This avoids insufficient charging or overcharging problems caused by fixed parameters, further improving charging accuracy and battery life. The preset calibration cycle refers to the time interval between two calibrations set by the system, such as pausing every 30 minutes of charging. The short pause time for charging refers to a pause duration of only a few seconds to tens of seconds (e.g., 10 seconds), sufficient for the battery voltage to recover from the loaded state to near the open circuit state without significantly affecting the overall charging process. Open circuit voltage refers to the battery's terminal voltage in a no-load, no-charging state; for example, the open circuit voltage of a lead-acid battery at 70% state of charge is approximately 25.2V. Load voltage refers to the voltage at which the battery is subjected to charging during the charging process. The terminal voltage at current is used to calculate the battery's current. For example, the voltage of the same battery under load might be 27.0V when the charging current is 10A. By calculating the difference between the two (27.0V - 25.2V = 1.8V) and combining it with the charging current (10A), the current internal resistance of the battery can be estimated to be 0.18Ω. If this internal resistance has increased by 20% compared to the last calibration, it indicates that the battery is aging more severely. Based on this, the system automatically increases the target charging voltage by 0.3V and decreases the charging current by 2A to match the current charging characteristics of the battery, ensuring that the charging process is always in an optimal state. Through this periodic self-calibration mechanism, the charging strategy has the ability to self-optimize according to changes in battery condition, enhancing the system's adaptability.

[0036] Furthermore, in one embodiment, before controlling the vehicle's power battery to replenish the storage battery, a self-test is performed on the insulation resistance, voltage status, and communication link of the high-voltage system. If all self-test results are qualified, the establishment of the replenishment channel is allowed; if an abnormality is found in the self-test, the establishment of the replenishment channel is prohibited, and an alarm message is sent to the user.

[0037] In this embodiment, the possibility of blindly powering on the system under risk conditions such as leakage, abnormal voltage, or communication failure is eliminated, avoiding electric shock accidents caused by insulation damage, equipment damage caused by voltage imbalance, and control failure caused by communication interruption, thus improving the safety of the entire intelligent power replenishment process under ACC mode. Insulation resistance refers to the insulation resistance between the positive and negative terminals of the high-voltage circuit and the vehicle chassis. The high-voltage domain controller sends a high-voltage detection request to the BMS, and after the BMS completes the battery status self-test, it sends back a signal allowing high-voltage access. This self-test process includes the detection of insulation resistance. When the insulation resistance is lower than the safety threshold (e.g., 20MΩ), it is considered abnormal. Voltage status refers to the voltage balance of the individual cells and the total voltage range of the power battery pack. During the self-test, the BMS will confirm that there are no faults such as undervoltage, overvoltage, or excessive voltage difference. Communication link refers to the CAN bus communication status between the high-voltage domain controller, BMS, and multi-function controller. If the communication is interrupted or the message times out, it is considered abnormal. Alarm information can be sent to the user by displaying a fault icon on the instrument panel, emitting a warning sound through the buzzer, or by pushing a notification to the mobile APP via T-BOX that the high-voltage system is abnormal and charging is prohibited.

[0038] What needs to be known is that Figure 3 In the arrows, solid lines represent hard wire connections, and dashed lines represent CAN bus connections.

[0039] Secondly, embodiments of this application also provide an intelligent charging system for commercial vehicles, comprising: The monitoring module is used to control the ON relay to be closed when the vehicle is in ACC mode, so that the battery supplies power to the vehicle's high-voltage equipment and the high-voltage equipment is in an operational state; the high-voltage equipment includes the air conditioning module. The charging module is used to monitor the battery charge in real time when the high-voltage equipment is in operation, and control the vehicle's power battery to charge the battery when the charge is lower than a preset charge threshold. The adjustment module is used to adjust the power battery charging parameters according to the power demand of the high-voltage equipment when the power battery charges the storage battery, so that the storage battery charge can be restored and maintained within a preset safe range.

[0040] The functions of each module in the above-mentioned intelligent charging system based on commercial vehicles correspond to the steps in the above-mentioned intelligent charging method embodiment based on commercial vehicles. Their functions and implementation processes will not be described in detail here.

[0041] Thirdly, embodiments of this application provide an intelligent charging device for commercial vehicles. The intelligent charging device for commercial vehicles can be a personal computer (PC), a laptop computer, a server, or other device with data processing capabilities.

[0042] Reference Figure 4 , Figure 4 This is a schematic diagram of the hardware structure of an intelligent charging device for commercial vehicles involved in an embodiment of this application. In this embodiment, the intelligent charging device for commercial vehicles may include a processor, a memory, a communication interface, and a communication bus.

[0043] The communication bus can be of any type and is used to interconnect the processor, memory, and communication interface.

[0044] The communication interface includes input / output (I / O) interfaces, physical interfaces, and logical interfaces used for interconnecting devices within the intelligent charging equipment for commercial vehicles, as well as interfaces used for interconnecting the intelligent charging equipment for commercial vehicles with other devices (such as other computing devices or user equipment). Physical interfaces can be Ethernet interfaces, fiber optic interfaces, ATM interfaces, etc.; user equipment can be displays, keyboards, etc.

[0045] Memory can be various types of storage media, such as random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), flash memory, optical storage, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), etc.

[0046] The processor can be a general-purpose processor, which can call the intelligent charging program for commercial vehicles stored in the memory and execute the intelligent charging method for commercial vehicles provided in the embodiments of this application. For example, the general-purpose processor can be a central processing unit (CPU). The method executed when the intelligent charging program for commercial vehicles is called can be referred to the various embodiments of the intelligent charging method for commercial vehicles in this application, and will not be repeated here.

[0047] Those skilled in the art will understand that Figure 4 The hardware structure shown does not constitute a limitation of this application and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0048] Fourthly, embodiments of this application also provide a computer-readable storage medium.

[0049] The present application stores a smart charging program for commercial vehicles on a computer-readable storage medium, wherein when the smart charging program for commercial vehicles is executed by a processor, it implements the steps of the smart charging method for commercial vehicles as described above.

[0050] The method implemented when the intelligent charging program based on commercial vehicles is executed can be referred to in the various embodiments of the intelligent charging method based on commercial vehicles in this application, and will not be repeated here.

[0051] It should be noted that the sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0052] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus. The terms "first," "second," and "third," etc., are used to distinguish different objects, etc., and do not indicate a sequence, nor do they limit "first," "second," and "third" to different types.

[0053] In the description of the embodiments of this application, terms such as "exemplary," "for example," or "for instance" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplary," "for example," or "for instance" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary," "for example," or "for instance" is intended to present the relevant concepts in a concrete manner.

[0054] In the description of the embodiments of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. The "and / or" in the text is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of this application, "multiple" means two or more.

[0055] In some processes described in the embodiments of this application, multiple operations or steps are included in a specific order. However, it should be understood that these operations or steps may not be executed in the order they appear in the embodiments of this application, or they may be executed in parallel. The sequence number of the operation is only used to distinguish different operations, and the sequence number itself does not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed sequentially or in parallel, and these operations or steps may be combined.

[0056] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device to execute the methods described in the various embodiments of this application.

[0057] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A smart charging method for commercial vehicles, characterized in that, It includes: When the vehicle is in ACC mode, the ON position relay is closed, enabling the battery to supply power to the vehicle's high-voltage equipment, thus putting the high-voltage equipment into an operational state; wherein, the high-voltage equipment includes an air conditioning module; If the high-voltage equipment is in operation, the battery charge is monitored in real time, and when the charge is lower than a preset charge threshold, the vehicle's power battery is controlled to replenish the battery. When the power battery replenishes the storage battery, the power battery replenishment parameters are adjusted according to the power demand of the high-voltage equipment, so that the storage battery's charge level recovers and is maintained within a preset safe range.

2. The intelligent charging method for commercial vehicles as described in claim 1, characterized in that, Adjusting the power battery charging parameters according to the power demand of the high-voltage equipment includes the following steps: Real-time monitoring of battery voltage and state of charge to identify battery type; the battery type includes lead-acid batteries and low-voltage lithium batteries; The charging parameters are adjusted according to the identified battery type; the charging parameters include charging voltage and charging current.

3. The intelligent charging method for commercial vehicles as described in claim 2, characterized in that, It also includes temperature control strategies, which include the following steps: During the operation of the air conditioning module, the ambient temperature and battery temperature are monitored in real time. When the ambient temperature is lower than the preset low temperature threshold, the battery is preheated. Once the battery temperature rises to the preset charging temperature, the charging of the battery is performed or resumed. When the ambient temperature is higher than the preset high temperature threshold, the battery is cooled down, and the charging current is reduced or the charging is paused until the battery temperature drops back to the preset charging temperature, then the charging of the battery is performed or resumed.

4. The intelligent charging method for commercial vehicles as described in claim 1, characterized in that, It also includes a power replenishment exit strategy, which comprises the following steps: When the battery charge is detected to have recovered to the preset safety limit, or the vehicle gear is detected to have shifted from ACC to another gear, or a door unlock signal is received, or the charging duration exceeds the preset maximum allowable duration, the charging channel is disconnected and charging stops, and a charging end prompt message is sent to the user's terminal at the same time.

5. The intelligent charging method for commercial vehicles as described in claim 1, characterized in that, It also includes an air conditioning safety start-up strategy, which includes the following steps: When the high-voltage equipment is started, if the battery charge is lower than a preset minimum threshold, the operation of the high-voltage equipment is temporarily suspended, and a charging channel from the vehicle's power battery to the battery is established. The high-voltage equipment will start operating when the charge is higher than the preset minimum threshold.

6. The intelligent charging method for commercial vehicles as described in claim 1, characterized in that, It also includes a power-off parameter calibration strategy, which comprises the following steps: During the charging process, the charging is paused briefly every preset calibration cycle, and the open-circuit voltage of the battery is measured. The open-circuit voltage is then compared with the load voltage during the charging process to calculate the change in the battery's internal resistance. The compensation voltage and compensation current are adjusted in real time based on changes in internal resistance.

7. The intelligent charging method for commercial vehicles as described in claim 1, characterized in that, Before controlling the vehicle's power battery to replenish the storage battery, the insulation resistance, voltage status and communication link of the high-voltage system are self-tested. When all self-test results are qualified, the establishment of the replenishment channel is allowed. If the self-test detects an abnormality, the establishment of a power supply channel will be prohibited, and an alarm message will be sent to the user.

8. An intelligent charging system for commercial vehicles, characterized in that, It includes: The monitoring module is used to control the ON relay to be closed when the vehicle is in ACC mode, so that the battery supplies power to the vehicle's high-voltage equipment and the high-voltage equipment is in an operational state; wherein, the high-voltage equipment includes an air conditioning module. The charging module is used to monitor the battery charge in real time when the high-voltage equipment is in operation, and control the vehicle power battery to charge the battery when the charge is lower than a preset charge threshold. The adjustment module is used to adjust the power battery charging parameters according to the power demand of the high-voltage equipment when the power battery charges the storage battery, so that the storage battery charge can be restored and maintained within a preset safe range.

9. A smart charging device for commercial vehicles, characterized in that, The intelligent charging device based on commercial vehicles includes a processor, a memory, and an intelligent charging program based on commercial vehicles stored in the memory and executable by the processor, wherein when the intelligent charging program based on commercial vehicles is executed by the processor, it implements the steps of the intelligent charging method based on commercial vehicles as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a smart charging program for commercial vehicles, wherein when the smart charging program for commercial vehicles is executed by a processor, it implements the steps of the smart charging method for commercial vehicles as described in any one of claims 1 to 7.

Images