Electric vehicle charging control method, system, vehicle and storage medium

Abstract

The embodiment of the application provides a kind of electric vehicle charging control method, system, vehicle and storage medium, the method comprises: in response to receiving the charging connection signal of target vehicle, the charging demand data corresponding to target vehicle is acquired;Energy-saving control request information is generated based on charging demand data, wherein, energy-saving control request information is used to execute energy-saving control operation to the controlled object of target vehicle;Energy-saving control request information is sent to the controlled object;Receive the energy-saving control response information corresponding to energy-saving control request information, wherein, energy-saving control response information is used to determine whether the running state of controlled object is switched from normal operation mode to energy-saving operation mode.The application solves the technical problems of low charging efficiency and high charging cost in the electric vehicle charging method provided in the related art.

Description

Technical Field

[0001] This application relates to the field of electric vehicle technology, and more specifically, to an electric vehicle charging control method, system, vehicle, and storage medium. Background Technology

[0002] With the rapid development of the new energy vehicle industry, improving charging efficiency has become crucial for enhancing user experience and reducing operating costs. Currently, during AC / DC charging, not only are the Battery Management System (BMS) and On-board Charger (OBC) activated, but all high-voltage components, including the core Motor Control Unit (MCU), are also in a high-energy-consumption state, even when the vehicle is stationary. This increases energy consumption and reduces charging efficiency. Although related technologies attempt to optimize the charging process, the MCU remains fully activated throughout the entire charging process, continuously consuming energy and failing to effectively reduce energy consumption. This indirectly leads to increased charging costs and a compromised user experience. During the charging phase, even though the vehicle is not moving, the MCU remains in a high-power state, consuming the entire vehicle's energy. This not only increases charging time but also raises user charging costs and reduces overall charging efficiency and driving range.

[0003] There is currently no good solution to the above problems. Summary of the Invention

[0004] This application provides an electric vehicle charging control method, system, vehicle, and storage medium to at least solve the technical problems of low charging efficiency and high charging cost in the electric vehicle charging methods provided in the related art.

[0005] According to one aspect of the embodiments of this application, an electric vehicle charging control method is provided, comprising: in response to receiving a charging connection signal of a target vehicle, acquiring charging demand data corresponding to the target vehicle, wherein the charging connection signal is used to determine that a charging connection has been established between the target vehicle and a vehicle charging pile, and the charging demand data is used to represent the vehicle battery status and user charging demand corresponding to the target vehicle; generating energy-saving control request information based on the charging demand data, wherein the energy-saving control request information is used to perform energy-saving control operations on the target vehicle; sending the energy-saving control request information to the target vehicle; and receiving energy-saving control response information corresponding to the energy-saving control request information, wherein the energy-saving control response information is used to determine whether the operating state of the target vehicle has switched from a normal operating mode to an energy-saving operating mode.

[0006] Optionally, the electric vehicle charging control method in this application embodiment further includes: determining the charging demand power corresponding to the target vehicle based on charging demand data; and managing the charging of the target vehicle according to the charging demand power.

[0007] Optionally, the electric vehicle charging control method in this application embodiment further includes: acquiring the overall vehicle operating status of the target vehicle, wherein the overall vehicle operating status is used to determine whether the target vehicle is in a dormant state; and receiving a charging connection signal of the target vehicle in response to the overall vehicle operating status not being in a dormant state.

[0008] Optionally, the electric vehicle charging control method in this application embodiment further includes: in response to the vehicle being in a dormant state, acquiring a vehicle wake-up signal; in response to completing a wake-up operation on the target vehicle based on the vehicle wake-up signal, receiving a charging connection signal from the target vehicle.

[0009] Optionally, the charging demand data includes at least one of the following: vehicle battery status, user charging demand, charging station type information, and charging environment information.

[0010] According to another aspect of the embodiments of this application, an electric vehicle charging control method is also provided, comprising: receiving energy-saving control request information, wherein the energy-saving control request information is generated based on charging demand data, the charging demand data is acquired in response to receiving a charging connection signal of a target vehicle, the charging demand data is used to represent the vehicle battery status and user charging demand corresponding to the target vehicle, and the charging connection signal is used to determine that a charging connection has been established between the target vehicle and the vehicle charging pile; performing energy-saving control operations on the target vehicle to be controlled based on the energy-saving control request information, and returning energy-saving control response information, wherein the energy-saving control response information is used to determine whether the operating state of the target vehicle to be controlled has switched from normal operating mode to energy-saving operating mode.

[0011] Optionally, performing energy-saving control operations on the target vehicle based on the energy-saving control request information includes: controlling the communication function module in the target vehicle to maintain normal operation mode based on the energy-saving control request information, and controlling the non-communication function module in the target vehicle to switch from normal operation mode to energy-saving operation mode.

[0012] According to another aspect of the embodiments of this application, an electric vehicle charging control device is also provided, comprising: an acquisition module, configured to acquire charging demand data corresponding to the target vehicle in response to receiving a charging connection signal from a target vehicle, wherein the charging connection signal is used to determine that a charging connection has been established between the target vehicle and a vehicle charging pile, and the charging demand data is used to represent the vehicle battery status and user charging demand corresponding to the target vehicle; a generation module, configured to generate energy-saving control request information based on the charging demand data, wherein the energy-saving control request information is used to perform energy-saving control operations on the target vehicle; a sending module, configured to send the energy-saving control request information to the target vehicle; and a receiving module, configured to receive energy-saving control response information corresponding to the energy-saving control request information, wherein the energy-saving control response information is used to determine whether the operating state of the target vehicle has switched from a normal operating mode to an energy-saving operating mode.

[0013] Optionally, the electric vehicle charging control device in this application embodiment further includes: a determination module, used to determine the charging demand power corresponding to the target vehicle based on charging demand data; and a management module, used to manage the charging of the target vehicle according to the charging demand power.

[0014] Optionally, the acquisition module is further configured to: acquire the overall vehicle operating status of the target vehicle, wherein the overall vehicle operating status is used to determine whether the target vehicle is in a dormant state; the receiving module is further configured to: receive the charging connection signal of the target vehicle in response to the overall vehicle operating status not being in a dormant state.

[0015] Optionally, the acquisition module is further configured to: acquire a vehicle wake-up signal in response to the vehicle being in a dormant state; the receiving module is further configured to: receive a charging connection signal from the target vehicle in response to completing a wake-up operation based on the vehicle wake-up signal.

[0016] Optionally, the charging demand data includes at least one of the following: vehicle battery status, user charging demand, charging station type information, and charging environment information.

[0017] According to another aspect of the embodiments of this application, an electric vehicle charging control device is also provided, comprising: a receiving module, configured to receive energy-saving control request information, wherein the energy-saving control request information is generated based on charging demand data, the charging demand data is acquired in response to receiving a charging connection signal from a target vehicle, the charging demand data is used to represent the vehicle battery status and user charging demand corresponding to the target vehicle, and the charging connection signal is used to determine that a charging connection has been established between the target vehicle and the vehicle charging pile; and a processing module, configured to perform energy-saving control operations on the target vehicle to be controlled based on the energy-saving control request information, and return energy-saving control response information, wherein the energy-saving control response information is used to determine whether the operating state of the target vehicle to be controlled has switched from normal operating mode to energy-saving operating mode.

[0018] Optionally, the processing module is also used to: control the communication function modules in the controlled object to maintain normal operation mode based on the energy-saving control request information, and control the non-communication function modules in the controlled object to switch from normal operation mode to energy-saving operation mode.

[0019] According to another aspect of the embodiments of this application, an electric vehicle charging control system is also provided. The electric vehicle charging control system includes: a power battery controller, a vehicle controller, and a drive motor controller. The power battery controller is used to send a charging connection signal to the vehicle controller, wherein the charging connection signal is used to determine that a charging connection has been established between the target vehicle and the vehicle charging pile. The vehicle controller is used to, in response to receiving the charging connection signal, acquire charging demand data corresponding to the target vehicle, generate energy-saving control request information based on the charging demand data, and determine the charging demand power corresponding to the target vehicle based on the charging demand data, and send the charging demand power to the power battery controller, wherein the charging demand data is used to represent the vehicle battery status and user charging demand corresponding to the target vehicle. The drive motor controller is used to receive the energy-saving control request information, perform energy-saving control operations on the target vehicle based on the energy-saving control request information, and return energy-saving control response information to the vehicle controller, wherein the energy-saving control response information is used to determine whether the operating state of the target vehicle has switched from normal operating mode to energy-saving operating mode.

[0020] According to another aspect of the embodiments of this application, a vehicle is also provided, including: a memory storing an executable program; and a processor for running the program, wherein the program executes the methods in various embodiments of this application when it runs.

[0021] According to another aspect of the embodiments of this application, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored executable program, wherein, when the executable program is running, it controls the device where the computer-readable storage medium is located to perform the methods of various embodiments of this application.

[0022] According to another aspect of the embodiments of this application, a computer program product is also provided, including a computer program that, when executed by a processor, implements the methods of various embodiments of this application.

[0023] According to another aspect of the embodiments of this application, a computer program product is also provided, including a non-volatile computer-readable storage medium storing a computer program that, when executed by a processor, implements the methods in various embodiments of this application.

[0024] According to another aspect of the embodiments of this application, a computer program is also provided, which, when executed by a processor, implements the methods of the various embodiments of this application.

[0025] In this embodiment, in response to receiving a charging connection signal from a target vehicle, the system acquires charging demand data corresponding to the target vehicle, generates energy-saving control request information based on the charging demand data, sends the energy-saving control request information to the object to be controlled, and finally receives energy-saving control response information corresponding to the energy-saving control request information. By intelligently identifying charging demand and executing energy-saving control operations on the object to be controlled, the system achieves the goals of efficient charging, reduced energy consumption, and improved user experience. This results in improved charging efficiency, reduced charging costs, and extended battery life, thereby solving the technical problems of low charging efficiency and high charging costs in electric vehicle charging methods provided in related technologies. Attached Figure Description

[0026] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0027] Figure 1 This is a flowchart of an electric vehicle charging control method according to an embodiment of this application;

[0028] Figure 2 This is a flowchart of another electric vehicle charging control method according to an embodiment of this application;

[0029] Figure 3 This is a schematic diagram of the interaction process of an electric vehicle charging control method according to an embodiment of this application;

[0030] Figure 4 This is a schematic diagram of an electric vehicle charging control method according to an embodiment of this application;

[0031] Figure 5 This is a schematic diagram of a state machine change according to an embodiment of this application;

[0032] Figure 6 This is an internal hardware architecture diagram of a drive motor controller according to an embodiment of this application;

[0033] Figure 7 This is a structural block diagram of an electric vehicle charging control device according to an embodiment of this application;

[0034] Figure 8 This is a structural block diagram of another electric vehicle charging control device according to an embodiment of this application. Detailed Implementation

[0035] 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 should fall within the scope of protection of the present application.

[0036] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0037] According to an embodiment of this application, a method embodiment for electric vehicle charging control is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0038] This method embodiment can be executed in an electronic device or similar computing device that includes memory and a processor. Taking operation on a computer terminal as an example, the computer terminal may include one or more processors (processors may include, but are not limited to, central processing units (CPUs), graphics processing units (GPUs), digital signal processing (DSP) chips, microprocessors (micro controller units), field programmable gate arrays (FPGAs), neural network processors (NPUs), tensor processing units (TPUs), artificial intelligence (AI) type processors, etc.) and memory for storing data. Optionally, the computer terminal may also include transmission devices, input / output devices, and display devices for communication functions. Those skilled in the art will understand that the above structural description is merely illustrative and does not limit the structure of the computer terminal. For example, the computer terminal may include more or fewer components than described above, or have a different configuration than described above.

[0039] The memory can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to the electric vehicle charging control method in this embodiment. The processor executes various functional applications and data processing by running the computer program stored in the memory, thereby implementing the aforementioned electric vehicle charging control method. The memory may include high-speed random access memory (RAM) and non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory may further include memory remotely located relative to the processor, and these remote memories can be connected to the mobile terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks (LANs), mobile communication networks, and combinations thereof.

[0040] The transmission device is used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the mobile terminal's communication provider. In one example, the transmission device includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the transmission device may be a Radio Frequency (RF) module, used for wireless communication with the Internet.

[0041] Display devices can be, for example, touchscreen liquid crystal displays (LCDs) and touch displays (also referred to as "touchscreens" or "touch displays"). The LCD allows users to interact with the user interface of the mobile terminal. In some embodiments, the mobile terminal has a graphical user interface (GUI), which allows users to interact with the GUI through finger contact and / or gestures on a touch-sensitive surface. Optional human-computer interaction functions include: creating web pages, drawing, word processing, creating electronic documents, playing games, video conferencing, instant messaging, sending and receiving emails, call interfaces, playing digital video, playing digital music, and / or web browsing, etc. Executable instructions for performing the above human-computer interaction functions are configured / stored in one or more processor-executable computer program products or readable storage media.

[0042] This embodiment provides a method for controlling electric vehicle charging. Figure 1 This is a flowchart of an electric vehicle charging control method according to an embodiment of this application, such as... Figure 1 As shown, the process includes the following steps:

[0043] Step S11: In response to receiving the charging connection signal of the target vehicle, obtain the charging demand data corresponding to the target vehicle. The charging connection signal is used to determine that a charging connection has been established between the target vehicle and the vehicle charging pile, and the charging demand data is used to represent the vehicle battery status and user charging demand corresponding to the target vehicle.

[0044] Step S12: Generate energy-saving control request information based on charging demand data, wherein the energy-saving control request information is used to perform energy-saving control operations on the target vehicle.

[0045] Step S13: Send energy-saving control request information to the object to be controlled;

[0046] Step S14: Receive energy-saving control response information corresponding to the energy-saving control request information, wherein the energy-saving control response information is used to determine whether the operating status of the object to be controlled has switched from normal operating mode to energy-saving operating mode.

[0047] The aforementioned charging connection signal can be detected and sent by the vehicle charging pile. When a physical connection is established between the target vehicle and the charging pile, the charging pile will generate a charging connection signal. This signal is captured by the battery management system (BMS) or the on-board charger (OBC), which then wakes up the relevant control modules to prepare for charging.

[0048] After the target vehicle establishes a charging connection with the charging station, the BMS will assess the vehicle's battery status, including the remaining battery charge (State of Charge, SOC), battery temperature, and battery health status. At the same time, it will collect the charging requirements set by the user through the human-machine interface (such as a touch screen or mobile application), such as the maximum charging power and charging cut-off time. The above data will be summarized into charging demand data to guide subsequent charging control strategies.

[0049] The aforementioned energy-saving control request information, also known as low-power request information, is generated by the vehicle control unit (VCU) based on charging demand data. This information contains specific instructions for implementing energy-saving control on high-voltage components of the vehicle, such as the motor controller (MCU). The purpose of this energy-saving control request information is to notify the controlled object, i.e., the MCU, to enter a low-power mode, shutting down or reducing unnecessary power supply modules to minimize energy consumption during charging.

[0050] The aforementioned object to be controlled can drive the motor controller MCU, which is a key component of the vehicle's electric drive system and plays an important role in the charging process. By receiving energy-saving control request information, it can perform energy-saving control operations and switch to low-power mode operation.

[0051] The aforementioned energy-saving control response information is feedback issued by the controlled object, i.e., the MCU, after receiving the energy-saving control request information, indicating that it has followed the instruction and successfully switched from normal operation mode to energy-saving operation mode. This energy-saving control response information is crucial for the VCU to monitor energy management and system status throughout the entire charging process.

[0052] When the charging station detects that the charging port of the target vehicle is connected, the charging station will send a charging connection signal. After receiving this signal, the BMS or OBC will wake up and evaluate the status of the vehicle's battery. At the same time, it will collect any user-set charging requirements, such as charging to 80% SOC, and summarize them into charging demand data to provide a basis for the next energy-saving strategy.

[0053] Based on the collected charging demand data, the vehicle control unit (VCU) generates energy-saving control request information. This request information contains specific instructions to guide the MCU to enter a low-power mode during charging, reducing unnecessary energy consumption, such as shutting down the resolver decoding power supply module, power drive power supply module, and current sampling power supply module.

[0054] The VCU sends energy-saving control request information to the controlled object, i.e., the MCU, through the vehicle's communication network. After receiving this information, the MCU will perform specific internal operations, such as shutting down unnecessary power supply circuits to reduce power consumption, while ensuring the normal operation of its communication and monitoring functions.

[0055] After executing the energy-saving control operation, the MCU sends an energy-saving control response message to the VCU to confirm that it has successfully switched to the energy-saving operation mode. By receiving the response message, the VCU can monitor the status of the MCU in real time, ensuring that energy management during the charging process is effectively optimized.

[0056] Through the above process, the embodiments of this application can dynamically adjust the power consumption of the MCU during the charging process of the target vehicle, ensuring that it enters a low-power state when there is no power output demand. This not only significantly reduces the energy consumption of the MCU on the vehicle during charging and improves charging efficiency, but also reduces the energy consumption of end users during charging, indirectly lowering the cost of vehicle use. Through precise energy management and control, the charging efficiency of new energy vehicles is significantly improved, energy utilization is optimized, and the user experience is further enhanced.

[0057] Based on steps S11 to S14 above, in response to receiving the charging connection signal of the target vehicle, the charging demand data corresponding to the target vehicle is obtained, and then energy-saving control request information is generated based on the charging demand data. Subsequently, the energy-saving control request information is sent to the object to be controlled, and finally the energy-saving control response information corresponding to the energy-saving control request information is received. In this way, by intelligently identifying the charging demand and executing the energy-saving control operation of the object to be controlled, the purpose of efficient charging and replenishment, reducing energy consumption, and improving user experience is achieved. This achieves the technical effects of improving charging efficiency, reducing charging costs, and extending battery life, thereby solving the technical problems of low charging efficiency and high charging costs in the electric vehicle charging methods provided in related technologies.

[0058] The electric vehicle charging control method in the embodiments of this application will be further described below.

[0059] In an optional embodiment, the electric vehicle charging control method in this application further includes:

[0060] Determine the charging power required for the target vehicle based on charging demand data.

[0061] Charging management is performed on the target vehicle based on the charging power demand.

[0062] The charging demand data mentioned above integrates the current state of the vehicle battery, such as state of charge, battery temperature, and battery health, as well as the user's charging needs, such as charging to a specific SOC level, charging cut-off time, or maximum charging rate. Charging demand data is crucial information for determining charging strategies and optimizing energy distribution.

[0063] The charging power demand mentioned above is a power value calculated based on charging demand data, reflecting the amount of electricity required to charge the vehicle battery to a user-specified state (such as SOC level). Determining the charging power demand not only considers the physical characteristics of the battery but also takes into account the user's specific charging requirements, ensuring that the desired charging effect is achieved while effectively utilizing electrical resources.

[0064] Before the target vehicle begins charging, the VCU first obtains the current battery status and the user's set charging requirements. Using the charging requirements data, it calculates the charging power required by the target vehicle, that is, the power value that the charging pile should provide in order to achieve the user's set charging goal. This ensures accurate matching of charging energy and avoids energy waste.

[0065] After receiving the required charging power, the VCU sends this information to the BMS or OBC. The BMS or OBC then adjusts the charging pile's output power accordingly to precisely match the target vehicle's charging needs. This includes controlling the charging pile's power output to ensure the vehicle receives energy most efficiently during charging, and further optimizing energy consumption by adjusting key components like the MCU to enter low-power mode. The charging management process is crucial for achieving efficient and energy-saving charging; by dynamically adjusting the charging pile's output and MCU power consumption, it ensures optimal resource utilization during the charging process.

[0066] Based on the above optional embodiments, by determining the charging power required by the target vehicle based on charging demand data, and then managing the charging of the target vehicle according to the charging power required, the charging process is precisely controlled and energy is effectively utilized. This ensures that the power output of the charging pile is accurately matched with the actual needs of the vehicle, and reduces energy waste.

[0067] In an optional embodiment, the electric vehicle charging control method in this application further includes:

[0068] Obtain the overall vehicle operating status of the target vehicle, whereby the overall vehicle operating status is used to determine whether the target vehicle is in a dormant state;

[0069] In response to the vehicle not being in a dormant state, it receives the charging connection signal from the target vehicle.

[0070] The aforementioned vehicle operating status indicates the current working mode and system activity of the target vehicle, covering multiple dimensions of information such as driving status, electrical system activity level, and component wake-up status. By monitoring the vehicle operating status, it is possible to determine whether the target vehicle is in sleep mode, meaning that most of the vehicle's systems and electrical components have stopped working or are in a low-power state for energy-saving purposes.

[0071] Sleep mode is a vehicle's energy-saving mode in which the power consumption of most high-voltage and low-voltage components, such as the MCU, is minimized to reduce energy waste when the vehicle is stationary or not in use. In sleep mode, the vehicle typically maintains only essential support functions, such as anti-theft systems and remote communication.

[0072] Before the charging process begins, the overall operating status of the target vehicle is checked to determine if it is in a dormant state. By reading the vehicle status information stored in the VCU or querying the status of key system components through the vehicle communication network, it is possible to determine whether the target vehicle has entered a dormant state. This is crucial for successfully receiving the charging connection signal and preparing for charging.

[0073] If the target vehicle is detected to be not yet in a sleep state, the vehicle's BMS or OBC will remain in an active listening state so as to be able to capture the charging connection signal from the charging pile in a timely manner and send the charging connection signal to the VCU. This ensures that the charging request can be responded to quickly when the vehicle is not in a sleep state, avoiding unnecessary delays and energy consumption.

[0074] Based on the above optional embodiments, by acquiring the overall vehicle operating status of the target vehicle, and then responding to the fact that the overall vehicle operating status is not in a dormant state, the charging connection signal of the target vehicle is received. This not only speeds up the charging preparation speed, but also ensures that the vehicle can quickly enter the optimal energy management state when charging, laying the foundation for subsequent low power mode switching and energy-saving control, and further improving charging efficiency.

[0075] In an optional embodiment, the electric vehicle charging control method in this application further includes:

[0076] In response to the vehicle being in a sleep state, a vehicle wake-up signal is obtained;

[0077] The response is based on the vehicle wake-up signal to complete the wake-up operation of the target vehicle and to receive the charging connection signal of the target vehicle.

[0078] When the vehicle is detected to be in sleep mode, it means that the various systems and devices of the vehicle are in a state of extremely low energy consumption. In this scenario, the VCU in this embodiment closely monitors the occurrence of the vehicle wake-up signal. The BMS or OBC sends a vehicle wake-up signal to the VCU, and the vehicle is powered by high voltage based on the vehicle wake-up signal. When the vehicle is in a high-voltage state, the VCU can receive the charging connection signal of the target vehicle from the BMS or OBC.

[0079] Upon receiving the vehicle wake-up signal, the target vehicle begins to gradually restore the operation of its high-voltage system, including waking up key components and bringing them from dormant to active status, ready to receive charging. This wake-up process is orderly and efficient, ensuring that all necessary systems are fully prepared before charging begins.

[0080] Based on the above optional embodiments, by responding to the vehicle being in a dormant state, obtaining a vehicle wake-up signal, and then responding to the vehicle wake-up signal to complete the wake-up operation on the target vehicle and receiving the charging connection signal from the target vehicle, not only is the charging preparation speed accelerated, but the vehicle can also quickly respond to external charging requests, reducing the additional energy consumption caused by system wake-up.

[0081] In one optional embodiment, the charging demand data includes at least one of the following: vehicle battery status, user charging demand, charging station type information, and charging environment information.

[0082] The aforementioned vehicle battery status refers to the current operating condition and performance indicators of a new energy vehicle battery. This mainly includes the state of charge (SCC), the ratio of remaining battery capacity to fully charged capacity; battery temperature; battery health status, reflecting the degree of performance degradation; and other relevant battery parameters such as voltage and internal resistance. Vehicle battery status is crucial for assessing battery charging capacity, determining appropriate charging rates, and preventing overcharging or over-discharging.

[0083] The aforementioned user charging needs refer to the personalized requirements of end users during the charging process, including but not limited to the desired target SOC level, the expected charging cut-off time, the maximum allowable charging power, or the charging priority. The VCU can receive this information through the vehicle's human-machine interface to better adapt to user habits and specific scenario needs, thereby improving the charging experience.

[0084] The charging station type information mentioned above includes the classification and specifications of charging stations, such as whether they are AC or DC charging stations, their maximum output power, and charging protocol standards. This charging station type information helps the VCU understand available charging resources and ensure that the charging process complies with relevant standards and vehicle compatibility requirements.

[0085] The charging environment information mentioned above covers the external conditions of the charging location, including temperature, humidity, power grid stability, and the surrounding environment of the charging facilities. These factors affect charging efficiency and safety; for example, in extreme low-temperature conditions, it may be necessary to preheat the battery to improve charging efficiency.

[0086] The embodiments of this application specify that the charging demand data should include at least one of the following: vehicle battery status, user charging demand, charging pile type information, and charging environment information. This means that when formulating charging strategies, various factors affecting the charging process can be comprehensively considered, improving the intelligence and personalization of charging control. This ensures that user needs are met, existing resources are fully utilized, battery health is maintained, battery life is extended, and the overall efficiency, safety, and user experience of the charging process are improved.

[0087] Figure 2 This is a flowchart of another electric vehicle charging control method according to an embodiment of this application, such as... Figure 2 As shown, the process includes the following steps:

[0088] Step S21, receive energy-saving control request information, wherein the energy-saving control request information is generated based on charging demand data, the charging demand data is obtained in response to receiving the charging connection signal of the target vehicle, the charging demand data is used to represent the vehicle battery status and user charging demand corresponding to the target vehicle, and the charging connection signal is used to determine that a charging connection has been established between the target vehicle and the vehicle charging pile.

[0089] Step S22: Based on the energy-saving control request information, perform energy-saving control operation on the target vehicle to be controlled and return energy-saving control response information. The energy-saving control response information is used to determine whether the operating status of the target vehicle to be controlled has switched from normal operating mode to energy-saving operating mode.

[0090] Based on the above steps S21 to S22, by receiving energy-saving control request information, and then performing energy-saving control operations on the target vehicle based on the energy-saving control request information, and returning energy-saving control response information, the goal of efficient charging and energy replenishment, energy consumption reduction, and user experience improvement is achieved by intelligently identifying charging needs and executing energy-saving control operations on the target vehicle. This achieves the technical effects of improving charging efficiency, reducing charging costs, and extending battery life, thereby solving the technical problems of low charging efficiency and high charging costs in the electric vehicle charging methods provided in related technologies.

[0091] In an optional embodiment, step S22, performing energy-saving control operations on the target vehicle based on the energy-saving control request information includes:

[0092] Based on the energy-saving control request information, the communication function modules in the controlled object are kept in normal operation mode, and the non-communication function modules in the controlled object are switched from normal operation mode to energy-saving operation mode.

[0093] The aforementioned controlled object can be an MCU (Microcontroller Unit). During the charging and recharging process of new energy vehicles, the MCU is a key component responsible for important tasks such as driving the motor, decoding resolver signals, and current sampling. However, many of these functions are not essential during the charging phase, rather than the driving phase; therefore, the MCU is considered an object from which energy-saving control can be implemented.

[0094] In this embodiment, the communication function module refers to the part of the MCU responsible for exchanging data with other vehicle controllers (such as VCU, BMS, OBC, etc.) via the vehicle network. The communication function module needs to remain in normal operating mode to ensure smooth communication with other systems, even during charging, and to receive and send necessary control signals and status information in real time.

[0095] The non-communication function modules encompass all internal MCU components except for communication functions, including the resolver decoding module, power drive module, current sampling module, and power supply module for some processor functions. During the charging / recharging phase, the functions of these modules are not essential, and they can switch from normal operating mode to energy-saving operating mode, thereby significantly reducing overall power consumption.

[0096] Even under energy-saving control, the communication function module in this embodiment needs to be kept in normal operation mode. During the charging process, the MCU still needs to maintain effective communication with other controllers such as VCU in order to receive charging commands, provide feedback on status information and coordinate the entire charging process. This precisely balances the needs of energy saving and functionality, reducing unnecessary energy consumption while maintaining the stability and controllability of the charging process.

[0097] This application embodiment controls the non-communication function module to switch from normal operation mode to energy-saving operation mode to significantly reduce the power consumption of the MCU, including but not limited to shutting down the power supply of the resolver decoding module, power drive module, current sampling module and some functions of the processor. This selectively suspends inactive modules during the charging process, reduces energy waste, improves charging efficiency, reduces electricity costs, and enhances the user charging experience.

[0098] Figure 3 This is a schematic diagram of the interaction process of an electric vehicle charging control method according to an embodiment of this application, such as... Figure 3As shown, a DC or AC charging pile is connected to the charging dock of a new energy vehicle under external control and interacts with the vehicle's BMS or OBC via signal transmission. The BMS or OBC interacts with the charging dock through low-voltage signal transmission, identifies the charging dock's plug-in status, and feeds it back to the VCU. After receiving the plug-in signal from the BMS or OBC, the VCU synchronously calculates the charging power demand of the entire vehicle and feeds it back to the BMS or OBC, while simultaneously sending a low-power mode request to the MCU. Upon receiving the low-power mode request from the VCU, the MCU executes internal actions, shuts down some internal power supply circuits, and sends a response message to the VCU indicating that it is currently in low-power mode.

[0099] Figure 4 This is a schematic diagram of an electric vehicle charging control method according to an embodiment of this application, as shown below. Figure 4 As shown, the BMS or OBC receives the charging connection signal from the vehicle charging station. If the vehicle is currently in a dormant state, the BMS or OBC sends a vehicle wake-up signal, the vehicle is connected to high voltage, and the vehicle sends a charging connection signal to the VCU. After receiving the charging connection signal from the BMS or OBC, the VCU calculates the current charging power demand of the vehicle and feeds it back to the BMS or OBC, simultaneously sending an energy-saving control request to the MCU. After receiving the energy-saving control request from the VCU, the MCU performs internal actions, including shutting down some power supply circuits within the drive motor control, then the state machine jumps to low-power mode, and feeds back energy-saving control response information to the VCU, indicating that the switch to low-power mode has been successfully completed. If the vehicle is already in a high-voltage wake-up state before plugging in the charging gun, there is no need for the BMS or OBC to send a vehicle wake-up signal; the charging connection signal can be sent directly to the VCU.

[0100] Figure 5 This is a schematic diagram of a state machine change according to an embodiment of this application, such as... Figure 5As shown, the target vehicle state machine includes a Low Voltage Standby Module, a High Voltage Ready Module, a Low Power Consumption Mode Module, and a Torque Control Module. The Low Voltage Standby Module indicates that the vehicle is in a low-voltage state; the drive motor controller, which consumes energy from the low-voltage battery, can switch between these modules according to vehicle commands. The High Voltage Ready Module indicates that the vehicle is in a high-voltage state; the vehicle is connected to high voltage, all high-voltage components are functioning normally, and the vehicle consumes power battery energy. This module switches between the Low Voltage Standby Module, the Low Power Consumption Mode Module, and the Torque Control Module according to vehicle commands. The Low Power Consumption Mode Module indicates that the drive motor controller described in this scheme is in a low-power mode, reducing vehicle energy consumption and improving charging efficiency. The Torque Control Module is responsible for controlling the motor torque, i.e., controlling the motor's output force and speed to meet the vehicle's driving or power requirements. In driving mode, the MCU adjusts the motor's output torque through the Torque Control Module to ensure vehicle performance and safety.

[0101] Figure 6 This is an internal hardware architecture diagram of a drive motor controller according to an embodiment of this application, such as... Figure 6 As shown, the MCU includes: a vehicle low-voltage battery, a power management module, a communication module, a processor module, a resolver decoding module, a power drive module, and a current sampling module. Under normal high-voltage preparation and torque control modes, all modules within the MCU operate normally. The power management module manages the MCU's power supply, including sensor power, communication power, and processor power. The communication module facilitates network signal exchange and transmission between the MCU and other vehicle controllers. The processor module handles the MCU's sensor sampling, current calculation, derating protection, and communication processing functions. The resolver decoding module calculates the position and speed of the drive motor. The power drive module controls the three-phase current through the MCU's operating condition module to control the drive motor's operation. The current sampling module samples the three-phase motor current.

[0102] After receiving the low-power command from the VCU, the MCU performs internal actions, including shutting down the resolver decoding power supply module, the power module drive power supply module, the current sampling power supply module, and the main processor's partial power supply module while ensuring normal communication functions. It also sends energy-saving control response information back to the VCU, indicating that it has successfully switched to low-power mode.

[0103] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties. Furthermore, the collection, use and processing of the relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions, and corresponding operation portals are provided for users to choose to authorize or refuse.

[0104] According to an embodiment of this application, an apparatus embodiment for an electric vehicle charging control method is provided. It should be noted that the apparatus can be used to execute the above-described electric vehicle charging control method.

[0105] Figure 7 This is a structural block diagram of an electric vehicle charging control device according to an embodiment of this application, such as... Figure 7 As shown, the device includes:

[0106] The acquisition module 701 is used to acquire charging demand data corresponding to the target vehicle in response to receiving a charging connection signal from the target vehicle. The charging connection signal is used to determine that a charging connection has been established between the target vehicle and the vehicle charging pile, and the charging demand data is used to represent the vehicle battery status and user charging demand of the target vehicle. The generation module 702 is used to generate energy-saving control request information based on the charging demand data. The energy-saving control request information is used to perform energy-saving control operations on the target vehicle. The sending module 703 is used to send the energy-saving control request information to the target vehicle. The receiving module 704 is used to receive energy-saving control response information corresponding to the energy-saving control request information. The energy-saving control response information is used to determine whether the operating state of the target vehicle has switched from normal operating mode to energy-saving operating mode.

[0107] Optionally, the electric vehicle charging control device in this application embodiment further includes: a determination module 705, used to determine the charging demand power corresponding to the target vehicle based on charging demand data; and a management module 706, used to manage the charging of the target vehicle according to the charging demand power.

[0108] Optionally, the acquisition module 701 is further configured to: acquire the overall vehicle operating status of the target vehicle, wherein the overall vehicle operating status is used to determine whether the target vehicle is in a dormant state; the receiving module is further configured to: receive the charging connection signal of the target vehicle in response to the overall vehicle operating status not being in a dormant state.

[0109] Optionally, the acquisition module 701 is further configured to: acquire a vehicle wake-up signal in response to the vehicle being in a dormant state; the receiving module is further configured to: receive a charging connection signal of the target vehicle in response to completing a wake-up operation on the target vehicle based on the vehicle wake-up signal.

[0110] Optionally, the charging demand data includes at least one of the following: vehicle battery status, user charging demand, charging station type information, and charging environment information.

[0111] Figure 8 This is a structural block diagram of another electric vehicle charging control device according to an embodiment of this application, such as... Figure 8 As shown, the device includes:

[0112] The receiving module 801 is used to receive energy-saving control request information, wherein the energy-saving control request information is generated based on charging demand data, which is obtained in response to receiving a charging connection signal from the target vehicle. The charging demand data is used to represent the vehicle battery status and user charging demand corresponding to the target vehicle, and the charging connection signal is used to determine that a charging connection has been established between the target vehicle and the vehicle charging pile. The processing module 802 is used to perform energy-saving control operations on the target vehicle to be controlled based on the energy-saving control request information and return energy-saving control response information, wherein the energy-saving control response information is used to determine whether the operating state of the target vehicle to be controlled has switched from normal operating mode to energy-saving operating mode.

[0113] Optionally, the processing module 802 is also used to: control the communication function module in the object to be controlled to maintain normal operation mode based on the energy-saving control request information, and control the non-communication function module in the object to be controlled to switch from normal operation mode to energy-saving operation mode.

[0114] It should be noted that the above modules can be implemented by software or hardware. For the latter, they can be implemented in the following ways, but are not limited to: all the above modules are located in the same processor; or, the above modules are located in different processors in any combination.

[0115] This application provides an electric vehicle charging control system, which includes: a power battery controller, a vehicle controller, and a drive motor controller. The power battery controller sends a charging connection signal to the vehicle controller, wherein the charging connection signal is used to determine that a charging connection has been established between the target vehicle and the vehicle charging pile. The vehicle controller, in response to receiving the charging connection signal, acquires charging demand data corresponding to the target vehicle, generates energy-saving control request information based on the charging demand data, determines the charging demand power corresponding to the target vehicle based on the charging demand data, and sends the charging demand power to the power battery controller. The charging demand data represents the vehicle battery status and user charging demand corresponding to the target vehicle. The drive motor controller receives the energy-saving control request information, performs energy-saving control operations on the target vehicle based on the energy-saving control request information, and returns energy-saving control response information to the vehicle controller. The energy-saving control response information is used to determine whether the operating state of the target vehicle has switched from normal operating mode to energy-saving operating mode.

[0116] Embodiments of this application also provide a vehicle, including: a memory storing an executable program; and a processor for running the program, wherein the program executes the methods described in various embodiments of this application when it runs.

[0117] Optionally, in this embodiment, the processor can be configured to perform the following steps via a computer program:

[0118] S1, in response to receiving the charging connection signal of the target vehicle, obtain the charging demand data corresponding to the target vehicle, wherein the charging connection signal is used to determine that a charging connection has been established between the target vehicle and the vehicle charging pile, and the charging demand data is used to represent the vehicle battery status and user charging demand corresponding to the target vehicle.

[0119] S2, Generate energy-saving control request information based on charging demand data, wherein the energy-saving control request information is used to perform energy-saving control operations on the target vehicle.

[0120] S3, send energy-saving control request information to the object to be controlled;

[0121] S4, receive energy-saving control response information corresponding to energy-saving control request information, wherein the energy-saving control response information is used to determine whether the operating status of the object to be controlled has switched from normal operating mode to energy-saving operating mode.

[0122] Optionally, in this embodiment, the processor can be configured to perform the following steps via a computer program:

[0123] S1, receive energy-saving control request information, wherein the energy-saving control request information is generated based on charging demand data, the charging demand data is obtained in response to receiving the charging connection signal of the target vehicle, the charging demand data is used to represent the vehicle battery status and user charging demand corresponding to the target vehicle, and the charging connection signal is used to determine that a charging connection has been established between the target vehicle and the vehicle charging pile.

[0124] S2, based on the energy-saving control request information, performs energy-saving control operations on the target vehicle to be controlled and returns energy-saving control response information, wherein the energy-saving control response information is used to determine whether the operating status of the target vehicle has switched from normal operating mode to energy-saving operating mode.

[0125] Embodiments of this application also provide a computer-readable storage medium including a stored executable program, wherein, when the executable program is running, it controls the device where the computer-readable storage medium is located to perform the methods of various embodiments of this application.

[0126] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0127] S1, in response to receiving the charging connection signal of the target vehicle, obtain the charging demand data corresponding to the target vehicle, wherein the charging connection signal is used to determine that a charging connection has been established between the target vehicle and the vehicle charging pile, and the charging demand data is used to represent the vehicle battery status and user charging demand corresponding to the target vehicle.

[0128] S2, Generate energy-saving control request information based on charging demand data, wherein the energy-saving control request information is used to perform energy-saving control operations on the target vehicle.

[0129] S3, send energy-saving control request information to the object to be controlled;

[0130] S4, receive energy-saving control response information corresponding to energy-saving control request information, wherein the energy-saving control response information is used to determine whether the operating status of the object to be controlled has switched from normal operating mode to energy-saving operating mode.

[0131] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0132] S1, receive energy-saving control request information, wherein the energy-saving control request information is generated based on charging demand data, the charging demand data is obtained in response to receiving the charging connection signal of the target vehicle, the charging demand data is used to represent the vehicle battery status and user charging demand corresponding to the target vehicle, and the charging connection signal is used to determine that a charging connection has been established between the target vehicle and the vehicle charging pile.

[0133] S2, based on the energy-saving control request information, performs energy-saving control operations on the target vehicle to be controlled and returns energy-saving control response information, wherein the energy-saving control response information is used to determine whether the operating status of the target vehicle has switched from normal operating mode to energy-saving operating mode.

[0134] Embodiments of this application also provide a computer program product, including a computer program that, when executed by a processor, implements the methods of various embodiments of this application.

[0135] Embodiments of this application also provide a computer program product, including a non-volatile computer-readable storage medium for storing a computer program that, when executed by a processor, implements the methods in various embodiments of this application.

[0136] Embodiments of this application also provide a computer program that, when executed by a processor, implements the methods described in the various embodiments of this application.

[0137] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0138] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0139] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0140] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0141] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard drive, magnetic disk, or optical disk.

[0142] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A method for controlling the charging of an electric vehicle, characterized in that, include: In response to receiving a charging connection signal from a target vehicle, the charging demand data corresponding to the target vehicle is obtained, wherein the charging connection signal is used to determine that a charging connection has been established between the target vehicle and the vehicle charging pile, and the charging demand data is used to represent the vehicle battery status and user charging demand corresponding to the target vehicle. Based on the charging demand data, an energy-saving control request information is generated, wherein the energy-saving control request information is used to perform energy-saving control operations on the target vehicle. Send the energy-saving control request information to the object to be controlled; Receive energy-saving control response information corresponding to the energy-saving control request information, wherein the energy-saving control response information is used to determine whether the operating state of the object to be controlled has switched from normal operating mode to energy-saving operating mode; The object to be controlled includes a drive motor controller. The energy-saving control request information is also used to control the drive motor controller to shut down the resolver decoding power supply module, the power module drive power supply module, and the current sampling power supply module. The energy-saving control response information is also used to determine that the drive motor controller has successfully switched from the normal operation mode to the energy-saving operation mode.

2. The method according to claim 1, characterized in that, The method further includes: The charging power requirement corresponding to the target vehicle is determined based on the charging demand data. The target vehicle is charged according to the required charging power.

3. The method according to claim 1, characterized in that, The method further includes: The overall vehicle operating status of the target vehicle is obtained, wherein the overall vehicle operating status is used to determine whether the target vehicle is in a dormant state; In response to the fact that the vehicle is not in a dormant state, the charging connection signal of the target vehicle is received.

4. The method according to claim 3, characterized in that, The method further includes: In response to the vehicle operating state being in a dormant state, a vehicle wake-up signal is acquired; The system responds by waking up the target vehicle based on the vehicle wake-up signal and receives the charging connection signal from the target vehicle.

5. The method according to claim 1, characterized in that, The charging demand data includes at least one of the following: vehicle battery status, user charging demand, charging pile type information, and charging environment information.

6. A method for controlling the charging of an electric vehicle, characterized in that, include: Receive energy-saving control request information, wherein the energy-saving control request information is generated based on charging demand data, the charging demand data is obtained in response to receiving a charging connection signal of the target vehicle, the charging demand data is used to represent the vehicle battery status and user charging demand corresponding to the target vehicle, and the charging connection signal is used to determine that a charging connection has been established between the target vehicle and the vehicle charging pile. Based on the energy-saving control request information, an energy-saving control operation is performed on the target vehicle to be controlled, and energy-saving control response information is returned. The energy-saving control response information is used to determine whether the operating state of the target vehicle to be controlled has switched from normal operating mode to energy-saving operating mode. The object to be controlled includes a drive motor controller. The energy-saving control request information is also used to control the drive motor controller to shut down the resolver decoding power supply module, the power module drive power supply module, and the current sampling power supply module. The energy-saving control response information is also used to determine that the drive motor controller has successfully switched from the normal operation mode to the energy-saving operation mode.

7. The method according to claim 6, characterized in that, Performing energy-saving control operations on the target vehicle based on the energy-saving control request information includes: Based on the energy-saving control request information, the communication function module in the object to be controlled is kept in normal operation mode, and the non-communication function module in the object to be controlled is switched from normal operation mode to energy-saving operation mode.

8. An electric vehicle charging control system, the electric vehicle charging control system comprising: The power battery controller, vehicle controller, and drive motor controller are characterized by: The power battery controller is used to send a charging connection signal to the vehicle controller, wherein the charging connection signal is used to determine that a charging connection has been established between the target vehicle and the vehicle charging pile. The vehicle controller is configured to, in response to receiving the charging connection signal, acquire the charging demand data corresponding to the target vehicle, generate energy-saving control request information based on the charging demand data, determine the charging demand power corresponding to the target vehicle based on the charging demand data, and send the charging demand power to the power battery controller, wherein the charging demand data is used to represent the vehicle battery status and user charging demand corresponding to the target vehicle. The drive motor controller is used to receive the energy-saving control request information, perform energy-saving control operations on the target vehicle based on the energy-saving control request information, and return energy-saving control response information to the vehicle controller. The energy-saving control response information is used to determine whether the operating state of the target vehicle has switched from normal operating mode to energy-saving operating mode. The object to be controlled includes a drive motor controller. The energy-saving control request information is also used to control the drive motor controller to shut down the resolver decoding power supply module, the power module drive power supply module, and the current sampling power supply module. The energy-saving control response information is also used to determine that the drive motor controller has successfully switched from the normal operation mode to the energy-saving operation mode.

9. A vehicle, characterized in that, include: Memory, which stores executable programs; A processor for running the program, wherein the program, when running, performs the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored executable program, wherein, when the executable program is executed, it controls the device on which the storage medium is located to perform the method according to any one of claims 1 to 7.

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