Control method applied to energy storage auxiliary device, controller and energy storage auxiliary device

Abstract

The invention discloses a control method applied to an energy storage auxiliary device, a controller and the energy storage auxiliary device.The control method applied to the energy storage auxiliary device comprises the steps that when it is determined that an automobile is in a standby state, the energy storage auxiliary device is controlled to be in a first-stage dormant state, so that a remote control assembly in the energy storage auxiliary device continues to work; intermittently starting the energy storage auxiliary device at a preset frequency, and obtaining a first electric quantity of a storage battery of the automobile; when the first electric quantity is smaller than a first preset threshold value, obtaining second electric quantity of the energy storage element and the number of times that the storage battery is charged by the energy storage auxiliary device; and when the second electric quantity is greater than a second preset threshold value and the number of times is less than or equal to a third preset threshold value, controlling the energy storage auxiliary device to be in a charging state so as to start each component in the energy storage auxiliary device, and enabling the energy storage element to charge the storage battery through the energy storage auxiliary device. In this way, it can be ensured that the automobile storage battery can reliably start the automobile while low power consumption is achieved.

Description

Technical Field

[0001] This application relates to the field of power control technology, and in particular to a control method, controller and energy storage auxiliary device applied to an energy storage auxiliary device. Background Technology

[0002] With the rapid development of energy storage technology and the continuous expansion of application scenarios, various charging and discharging devices for different battery systems have emerged. In practical applications, some battery products (such as lithium-ion battery modules) typically integrate a battery protection circuit module (PCM) or a battery management system (BMS), which can actively cut off the discharge circuit and enter a low-power sleep state when the battery power is too low, thereby effectively avoiding irreversible damage to the battery caused by over-discharge.

[0003] However, for battery types without protection boards, such as traditional lead-acid automotive batteries, they primarily rely on the energy provided by the vehicle's alternator for charging, lacking proactive and intelligent charge / discharge management mechanisms in daily use. When energy storage devices are connected to charge such batteries, the power consumption management of the charging / discharging equipment, as the energy conversion and transfer link, becomes a crucial aspect. If the equipment lacks efficient low-power management, it will not only waste electrical energy but may also lead to unreliable vehicle starting due to over-discharge. Summary of the Invention

[0004] This application provides a control method, controller, and energy storage auxiliary device for use in energy storage auxiliary devices, which can ensure that the vehicle battery can reliably start the vehicle while achieving low power consumption.

[0005] In a first aspect, embodiments of this application provide a control method for an energy storage auxiliary device, wherein the energy storage auxiliary device is used to electrically connect a vehicle and an energy storage element respectively. The method includes: when it is determined that the vehicle is in a standby state, controlling the energy storage auxiliary device to be in a first-level sleep state to maintain the remote control component in the energy storage auxiliary device to continue working and to shut down other components in the energy storage auxiliary device except for the remote control component; intermittently turning on other components in the energy storage auxiliary device except for the remote control component at a preset frequency, and acquiring a first charge of the vehicle's battery; when it is determined that the first charge is less than a first preset threshold, performing the following steps: acquiring a second charge of the energy storage element and the number of times the battery has been charged by the energy storage auxiliary device; when it is determined that the second charge is greater than a second preset threshold and the number of times is less than or equal to a third preset threshold, controlling the energy storage auxiliary device to be in a charging state to turn on each component in the energy storage auxiliary device and to enable the energy storage element to charge the battery through the energy storage auxiliary device.

[0006] In one or more embodiments, after performing the steps of intermittently activating other components in the energy storage auxiliary device at a preset frequency, excluding the remote control component, and obtaining a first charge level of the vehicle's battery, the method further includes: when determining that the first charge level is greater than or equal to a first preset threshold, controlling the energy storage auxiliary device to continue maintaining a first-level sleep state and resetting the count to zero.

[0007] In one or more embodiments, after performing the steps of acquiring the second charge of the energy storage element and the number of times the battery is charged by the energy storage auxiliary device, the method further includes: when it is determined that the second charge is less than or equal to a second preset threshold, controlling the energy storage auxiliary device to enter a secondary hibernation state, so as to shut down each component in the energy storage auxiliary device and reset the count to zero.

[0008] In one or more embodiments, after performing the steps of acquiring the second amount of energy of the energy storage element and the number of times the battery is charged by the energy storage auxiliary device, the method further includes: when it is determined that the number of times is greater than a third preset threshold, controlling the energy storage auxiliary device to enter a secondary hibernation state, so as to shut down each component in the energy storage auxiliary device and reset the number of times to zero.

[0009] In one or more embodiments, after performing the step of controlling the energy storage auxiliary device to be in a power replenishment state, the method further includes: controlling the energy storage auxiliary device to be in a pre-sleep state to shut down the power conversion components in the energy storage auxiliary device.

[0010] In one or more embodiments, before performing the step of controlling the energy storage auxiliary device to enter a first-level sleep state when it is determined that the vehicle is in a standby state, the method further includes: Upon receiving a standby signal, the control energy storage auxiliary device is put into a pre-sleep state to shut down the power conversion components in the energy storage auxiliary device.

[0011] In one or more embodiments, after controlling the energy storage auxiliary device to be in a pre-sleep state, the method further includes: determining that the vehicle is in a standby state when it is determined that the vehicle has been turned off based on the level state of the target signal line in the vehicle, and performing the step of controlling the energy storage auxiliary device to be in a first-level sleep state when it is determined that the vehicle is in a standby state, and subsequent steps thereof.

[0012] In one or more embodiments, the method further includes: when the energy storage auxiliary device is in a pre-dormant state, a first-level dormant state, or a second-level dormant state, if a wake-up signal is received, controlling the energy storage auxiliary device to be in a discharge state to turn on the various components in the energy storage auxiliary device, and enabling the vehicle to charge the energy storage element through the energy storage auxiliary device, while resetting the count to zero, wherein the wake-up signal is generated by the energy storage auxiliary device based on the battery voltage being within a preset voltage range.

[0013] Secondly, embodiments of this application provide a controller, including: at least one processor and a memory; the memory is coupled to the processor and is used to store instructions or programs, which, when executed by the at least one processor, cause the at least one processor to perform the control method applied to an energy storage auxiliary device as described in the first aspect.

[0014] Thirdly, embodiments of this application provide an energy storage auxiliary device, including a controller as described in the second aspect.

[0015] In one or more embodiments, the energy storage auxiliary device further includes: a power conversion component electrically connected to the controller, for converting the voltage of the energy storage element to charge the battery, or converting the voltage provided by the vehicle to charge the energy storage element, under the control of the controller; and a remote control component electrically connected to the controller for communicating with external devices to realize data exchange between the controller and external devices.

[0016] The beneficial effects of this application are as follows: The control method applied to the energy storage auxiliary device in the embodiments of this application firstly controls the energy storage auxiliary device to a first-level sleep state when it is determined that the car is in a standby state, so as to maintain the remote control component in the energy storage auxiliary device to continue to work and shut down other components in the energy storage auxiliary device except for the remote control component, thereby helping to reduce power consumption. At the same time, when the energy storage auxiliary device is in the first-level sleep state, other components in the energy storage auxiliary device except for the remote control component are intermittently turned on at a preset frequency, and the first charge of the car's battery is obtained. Then, when the first charge is less than a first preset threshold, the second charge of the energy storage element and the number of times the battery has been charged by the energy storage auxiliary device are obtained. When the second charge is greater than a second preset threshold and the number of times is less than or equal to a third preset threshold, the energy storage auxiliary device is controlled to be in a charging state, so as to turn on each component in the energy storage auxiliary device and enable the energy storage element to charge the battery through the energy storage auxiliary device, thereby realizing the charging process of the battery, which helps to ensure that the car battery can reliably start the vehicle. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are not intended to limit the embodiments, and elements having the same reference numerals in the drawings are designated as similar elements.

[0018] Figure 1 This is a schematic diagram of the composition of the energy storage auxiliary device provided in the embodiments of this application; Figure 2 This is a flowchart of a control method for an energy storage auxiliary device provided in an embodiment of this application. Figure 1 ; Figure 3This is a flowchart of a control method for an energy storage auxiliary device provided in an embodiment of this application. Figure 2 ; Figure 4 This is a flowchart of a control method for an energy storage auxiliary device provided in an embodiment of this application. Figure 3 ; Figure 5 This is a flowchart of a control method for an energy storage auxiliary device provided in an embodiment of this application. Figure 4 ; Figure 6 This is a flowchart of a control method for an energy storage auxiliary device provided in an embodiment of this application. Figure 5 ; Figure 7 This is a flowchart of a control method for an energy storage auxiliary device provided in an embodiment of this application. Figure 6 ; Figure 8 This is a flowchart of a control method for an energy storage auxiliary device provided in an embodiment of this application. Figure 7 . Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be described clearly and in detail below with reference to the accompanying drawings. Obviously, the embodiments in this application are only some embodiments, not all embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0020] It should be noted that when an element is described as "connected" to another element, it can be directly connected to the other element, or there can be one or more intermediate elements between them.

[0021] Furthermore, the technical features involved in the various embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0022] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the composition of the energy storage auxiliary device provided in the embodiments of this application. Figure 1 As shown, the energy storage auxiliary device 100 is electrically connected to the battery and energy storage element 300 in the vehicle 200, respectively.

[0023] In this context, "automobile" refers to a motor vehicle whose electrical system includes one or more batteries (usually lead-acid batteries). These batteries, also known as car batteries, are primarily used to start the engine and provide power to the vehicle's lights, audio system, instruments, electronic control units, and other electrical equipment. In a specific embodiment, when the automobile is a small motor vehicle (such as a sedan or light commercial vehicle), the battery is a 12-volt lead-acid battery; when the automobile is a medium- or heavy-duty commercial vehicle (such as a large bus), the battery is a 24-volt lead-acid battery.

[0024] Energy storage element 300 refers to a physical device or apparatus capable of receiving, storing, and releasing energy when needed. Its core function is to decouple energy supply from demand in time, serving as a buffer, regulator, or backup. In a specific embodiment, energy storage element 300 includes a battery.

[0025] The energy storage auxiliary device 100 is an electronic or electromechanical device used to connect, coordinate, or manage the energy flow between the battery and the energy storage element 300 in the vehicle 200. The energy storage auxiliary device 100 has at least bidirectional power transmission, status monitoring, and protection functions.

[0026] The energy storage auxiliary device 100 includes a controller 110. The controller 110 may be a microcontroller unit (MCU) or a digital signal processing (DSP) controller, etc.

[0027] The controller 110 includes at least one processor 111 and a memory 112. The memory 112 may be built into the controller 110 or external to the controller 110. The memory 112 may also be a remotely configured memory connected to the controller 110 via a network.

[0028] Memory 112, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules. Memory 112 may include a program storage area and a data storage area, wherein the program storage area may store the operating system and application programs required for at least one function; the data storage area may store data created based on the use of the terminal, etc. Furthermore, memory 112 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some embodiments, memory 112 may optionally include memory remotely located relative to processor 111, and these remote memories can be connected to the terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0029] The processor 111 performs various functions of the terminal and processes data by running or executing software programs and / or modules stored in the memory 112 and calling data stored in the memory 112, thereby performing overall monitoring of the terminal, such as implementing the control method applied to the energy storage auxiliary device in any embodiment of this application.

[0030] Processor 111 can be one or more, Figure 1 The example provided is a processor 111. The processor 111 and memory 112 can be connected via a bus or other means. The processor 111 may include a central processing unit (CPU), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a controller, a field-programmable gate array (FPGA) device, etc. The processor 111 can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration.

[0031] The energy storage auxiliary device 100 also includes a power conversion component 120. The power conversion component 120 is electrically connected to the controller 110 and is controlled by the controller 110 to convert the voltage of the energy storage element 300 to charge the battery in the vehicle 200, or to convert the voltage provided by the vehicle 200 to charge the energy storage element 300. The power conversion component 120 is an energy conversion device controlled by the controller 110, with its input and output terminals electrically connected to the vehicle's battery and energy storage element, respectively. In a specific embodiment, the power conversion component 120 includes a bidirectional DC-DC converter. The input and output of the bidirectional DC-DC converter are both direct current. By controlling the on and off timing of switching devices (such as MOSFETs and IGBTs), it can achieve boost, buck, or buck-boost functions in different operating modes, and the energy flow is reversible.

[0032] The energy storage auxiliary device 100 also includes a remote control component 130. The remote control component 130 is electrically connected to the controller 110 and is used to communicate with external devices to achieve data exchange between the controller 110 and the external devices. The remote control component 130 refers to a hardware or hardware / software combined module with integrated communication functions, configured to establish a wired or wireless communication connection with external devices, thereby realizing bidirectional data exchange between the controller 110 and the external devices. In a specific embodiment, the remote control component 130 includes a Bluetooth and / or Wi-Fi communication module.

[0033] It should be noted that, as Figure 1The hardware structure of the energy storage auxiliary device 100 shown is merely an example, and the energy storage auxiliary device 100 may have more or fewer components than those shown in the figure, may combine two or more components, or may have different component configurations. The various components shown in the figure may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and / or application-specific integrated circuits. For example, in some embodiments, the energy storage auxiliary device 100 also includes a power module electrically connected to the controller 110 and the remote control component 130 respectively to supply power to the controller 110 and the remote control component 130.

[0034] Please refer to Figure 2 , Figure 2 A flowchart illustrating a control method applied to an energy storage auxiliary device provided in an embodiment of this application. The energy storage auxiliary device is used to electrically connect a vehicle and an energy storage element. In some embodiments, the energy storage auxiliary device can be used as follows: Figure 1 The block diagram shown is implemented as described above. The specific implementation process has been described in detail in the above embodiments and will not be repeated here. Figure 2 As shown, the control method applied to the energy storage auxiliary device includes the following steps S210 to S240.

[0035] Step S210: When it is determined that the vehicle is in standby mode, control the energy storage auxiliary device to enter the first-level sleep mode in order to maintain the remote control component in the energy storage auxiliary device to continue to work and shut down other components in the energy storage auxiliary device except for the remote control component.

[0036] Specifically, in some embodiments, the following steps are used to determine whether a vehicle is in standby mode: The vehicle is determined to be in standby mode when the vehicle is determined to be off based on the voltage level of a target signal line in the vehicle. That is, the energy storage auxiliary device determines whether the vehicle is off by monitoring the voltage level of the target signal line in the vehicle, thereby determining whether the vehicle is in standby mode. The target signal line is a specific physical line in the vehicle's electrical system that can directly and accurately reflect the engine's operating status or the on / off status of the vehicle's main power circuit. The target signal line is the hardware basis for the energy storage auxiliary device to determine whether the vehicle is off and thus enters standby mode. In a specific embodiment, the target signal line is the ignition switch signal line (IGN line). The energy storage auxiliary device detects that the ignition switch signal line maintains a stable low voltage level (usually 0V or close to 0V) for a period of time, thereby determining that the engine has stopped running and the vehicle is off, thus determining that the vehicle is in standby mode.

[0037] On the one hand, by keeping the remote control components in the energy storage auxiliary device operational to maintain Bluetooth and / or WiFi connectivity, users can remotely control the energy storage auxiliary device via a mobile app, smart key, or cloud platform, thus maintaining remote control capability. On the other hand, by shutting down other components in the energy storage auxiliary device besides the remote control components to disable high-power modules, it is beneficial to significantly reduce system power consumption.

[0038] In addition, in one specific embodiment, after controlling the energy storage auxiliary device to enter the first-level sleep state, a signal is also output to notify the energy storage element that it can enter the sleep state, so as to further reduce power consumption.

[0039] In some embodiments, such as Figure 3 As shown, before performing step S210, the control method applied to the energy storage auxiliary device further includes the following step S310.

[0040] Step S310: Upon receiving a standby signal, control the energy storage auxiliary device to enter a pre-sleep state to shut down the power conversion components in the energy storage auxiliary device.

[0041] Specifically, after receiving a set of sleep trigger signals determined by the upper-layer software logic (such as APP shutdown, vehicle standby when the engine is off, standby under switch failure, or low-voltage sleep), the energy storage auxiliary device actively enters an intermediate low-power state: pre-sleep state. When the energy storage auxiliary device is in the pre-sleep state, the power conversion components in the energy storage auxiliary device are turned off to reduce operating power consumption. Then, when it is determined that the vehicle is in standby state based on hardware signals (such as the signals on the ignition switch signal line in the aforementioned embodiment), step S210 is executed.

[0042] By setting a pre-sleep state, software and hardware signals can be separated. The pre-sleep state allows software signals to enter and hardware signals to exit, thus ensuring that software signals have the same timeliness and avoiding hardware inconsistencies.

[0043] Step S220: Intermittently activate other components in the energy storage auxiliary device, excluding the remote control component, at a preset frequency, and obtain the first charge of the vehicle's battery.

[0044] Specifically, after entering the first-level sleep state, the energy storage auxiliary device periodically activates (or wakes up) the shut-down components briefly from sleep state according to a pre-configured time interval (i.e., the "preset frequency") triggered by an internal low-power timer to perform a specific task (i.e., acquiring the first charge of the vehicle's battery). After acquiring the first charge, it immediately returns to sleep state, thereby achieving continuous, low-overhead monitoring of the battery charge. This effectively prevents over-discharge of the battery, ensures vehicle startability, and extends battery life.

[0045] The preset frequency refers to the number of wake-ups per unit of time, which can be set based on the actual application scenario. In some embodiments, the preset frequency is set to a low frequency, such as once every 30 minutes or 1 hour.

[0046] After completing step S220, as Figure 4 As shown, the control method applied to the energy storage auxiliary device further includes the following step S410.

[0047] Step S410: When it is determined that the first power is greater than or equal to the first preset threshold, control the energy storage auxiliary device to continue to maintain the first-level sleep state and reset the count to zero.

[0048] Specifically, the energy storage auxiliary device detects that the battery's charge level (i.e., the first charge level) remains consistently stable within a preset safety threshold range (i.e., greater than or equal to the first preset threshold), indicating that its remaining charge is sufficient and will not cause start-up failure due to self-discharge in the short term. Therefore, no active charging measures are required. In this case, the energy storage auxiliary device remains in a first-level sleep state to maintain remote control capabilities while keeping the system in a low-power state. Simultaneously, the number of times the battery has been charged by the energy storage auxiliary device is reset to zero, in preparation for the next battery recharge.

[0049] In one specific embodiment, "the first battery level is greater than or equal to the first preset threshold" means that the first battery level is continuously greater than or equal to the first preset threshold, i.e., the first battery level is detected to be greater than or equal to the first preset threshold multiple times consecutively. This suppresses misjudgments caused by instantaneous interference or measurement noise, thereby improving the accuracy of the judgment. The first preset threshold and a pre-set threshold can be set based on the actual application scenario.

[0050] After performing step S220, when it is determined that the first battery level is less than the first preset threshold, steps S230 to S240 are performed. In a specific embodiment, "the first battery level is less than the first preset threshold" means that the first battery level is continuously less than the first preset threshold, i.e., the first battery level is detected to be less than the first preset threshold multiple times consecutively. This suppresses misjudgments caused by transient interference or measurement noise, and helps improve the accuracy of the judgment.

[0051] Step S230: Obtain the second charge of the energy storage element and the number of times the battery has been charged by the energy storage auxiliary device.

[0052] Step S240: When it is determined that the second power is greater than the second preset threshold and the number of times is less than or equal to the third preset threshold, the energy storage auxiliary device is controlled to be in a charging state, so as to turn on each component in the energy storage auxiliary device and enable the energy storage element to charge the battery through the energy storage auxiliary device.

[0053] Specifically, when the detected first charge level is less than a first preset threshold, it is determined that the battery needs to be recharged. At this point, if it is further determined that the charge level of the energy storage element (i.e., the second charge level) is greater than the second preset threshold, meaning the energy storage element has sufficient capacity to recharge the battery; and simultaneously, if the number of recharge attempts is less than or equal to a third preset threshold, indicating that recharging the battery is still permitted, then the energy storage auxiliary device is controlled to be in recharging mode. By setting the number of recharge attempts to be less than or equal to the third preset threshold before allowing automatic battery recharging, not only is excessive charge consumption of the energy storage element prevented from occurring due to repeated recharging, but it also prevents leakage caused by aging of the vehicle battery, which could lead to excessive charge consumption of the energy storage element due to unrestricted recharging. Both the second and third preset thresholds are pre-set thresholds, and both can be set based on actual application scenarios.

[0054] When the energy storage auxiliary device is in the charging state, the various components in the energy storage auxiliary device are activated, and the energy storage elements charge the battery through the energy storage auxiliary device to ensure that the vehicle battery can reliably start the vehicle.

[0055] In some embodiments, such as Figure 5 As shown, after step S230 is executed, the control method applied to the energy storage auxiliary device further includes the following step S510.

[0056] Step S510: When the second power is less than or equal to the second preset threshold, control the energy storage auxiliary device to enter the second-level sleep state, so as to shut down each component in the energy storage auxiliary device and reset the count to zero.

[0057] Specifically, although it is determined that the battery needs to be recharged based on the first charge being less than a first preset threshold, if the charge of the energy storage element (i.e., the second charge) is detected to be less than or equal to a second preset threshold, it is determined that the energy storage element does not have sufficient capacity to recharge the battery. At this time, the energy storage auxiliary device is controlled to enter a second-level sleep state to shut down all components in the energy storage auxiliary device to further reduce power consumption; at the same time, the number of times the battery has been charged by the energy storage auxiliary device is reset to zero, in preparation for the next battery recharge.

[0058] In some embodiments, such as Figure 6 As shown, after step S230 is executed, the control method applied to the energy storage auxiliary device further includes the following step S610.

[0059] Step S610: When the number of attempts exceeds the third preset threshold, control the energy storage auxiliary device to enter the second-level sleep state, so as to shut down each component in the energy storage auxiliary device and reset the number of attempts to zero.

[0060] Specifically, although the battery is determined to need recharging based on a first preset threshold that the battery charge is less than a first preset threshold, recharging is stopped as soon as the number of times the battery has been charged by the energy storage auxiliary device exceeds a third preset threshold. This is to prevent excessive consumption of the energy storage components, which could reduce their lifespan or even damage them. At this time, the energy storage auxiliary device is controlled to enter a second-level sleep state to shut down all components within it, further reducing power consumption. Simultaneously, the number of times the battery has been charged by the energy storage auxiliary device is reset to zero, in preparation for the next recharging attempt.

[0061] In some embodiments, such as Figure 7 As shown, after performing step S240, the control method applied to the energy storage auxiliary device further includes the following step S710.

[0062] Step S710: Control the energy storage auxiliary device to enter a pre-sleep state to shut down the power conversion components in the energy storage auxiliary device.

[0063] It is understandable that after executing step S240, the battery should be recharged before proceeding to step S710, thereby ensuring that the vehicle can be reliably started by the battery. After the battery is recharged, the energy storage auxiliary device is put into a pre-sleep state to shut down the power conversion components in the energy storage auxiliary device, thereby reducing power consumption.

[0064] In some embodiments, such as Figure 8 As shown, the control method applied to the energy storage auxiliary device further includes the following step S810.

[0065] Step S810: When the energy storage auxiliary device is in a pre-dormant state, a first-level dormant state, or a second-level dormant state, if a wake-up signal is received, the energy storage auxiliary device is controlled to be in a discharge state to turn on the various components in the energy storage auxiliary device and enable the vehicle to charge the energy storage element through the energy storage auxiliary device. At the same time, the count is reset to zero. The wake-up signal is generated by the energy storage auxiliary device based on the battery voltage being within a preset voltage range.

[0066] like Figure 8 As shown, after executing step S310 or step S240, the energy storage auxiliary device is in a pre-sleep state. If a wake-up signal is received, the energy storage auxiliary device is controlled to be in a discharge state. After executing step S210, the energy storage auxiliary device is in a first-level sleep state. If a wake-up signal is received, the energy storage auxiliary device is controlled to be in a discharge state. After executing step S410, step S510, or step S610, the energy storage auxiliary device is in a second-level sleep state. If a wake-up signal is received, the energy storage auxiliary device is controlled to be in a discharge state.

[0067] Specifically, after the car starts, the onboard engine charges the battery. When the battery voltage rises back to a preset voltage range, the energy storage auxiliary device detects this state through a voltage monitoring circuit and automatically generates a hardware signal (this hardware signal is the wake-up signal). The wake-up signal is used to activate the energy storage auxiliary device in a pre-dormant, first-level, or second-level dormant state, thereby controlling the energy storage auxiliary device to be in a discharging state. In other words, when the energy storage auxiliary device is in a discharging state, it simultaneously outputs a signal to the energy storage element to activate it, thus achieving the purpose of synchronized startup.

[0068] Subsequently, under the condition that the engine continues to run to charge the battery and there is a surplus of electrical energy, the energy storage auxiliary device guides this surplus energy to the energy storage element to charge the energy storage element, thereby achieving efficient energy recovery and utilization.

[0069] In some embodiments, the preset voltage range is further configured to include multiple voltage sub-ranges to suit different vehicle types. For example, in one specific embodiment, the preset voltage range is configured to include two voltage sub-ranges: the first voltage sub-range is [12V, 18V], suitable for vehicles with 12-volt batteries; the second voltage sub-range is [24V, 30V], suitable for vehicles with 24-volt batteries.

[0070] The following is a specific example to illustrate this.

[0071] When the car's battery is the sole power source, assuming the car is currently in motion and the energy storage auxiliary device is discharging, if the car is turned off, the energy storage auxiliary device receives a standby signal (software signal) and enters a pre-sleep state to shut down the power conversion components within it, thereby reducing power consumption.

[0072] Subsequently, if the hardware signal determines that the vehicle is in standby mode, the energy storage auxiliary device is put into a first-level sleep state. This activates the remote control component within the energy storage auxiliary device and deactivates all other components except the remote control component. This retains remote control capabilities while disabling high-power modules, significantly reducing system power consumption.

[0073] When the energy storage auxiliary device is in Level 1 hibernation state, the following two processes are executed: (1) If the conditions for replenishing the battery are met (i.e., the battery charge is less than the first preset threshold, the energy storage element charge is greater than the second preset threshold, and the number of times the battery is charged by the energy storage auxiliary device is less than or equal to the third preset threshold), then the energy storage auxiliary device is controlled to be in a replenishing state to turn on each component in the energy storage auxiliary device and to allow the energy storage element to charge the battery through the energy storage auxiliary device. After the battery charging is completed and it is ensured that the subsequent vehicle battery can reliably start the vehicle, the energy storage auxiliary device is controlled to be in a pre-dormant state to turn off the power conversion component in the energy storage auxiliary device to reduce operating power consumption.

[0074] (2) If the conditions for replenishing the battery are not met, there are two situations. The first situation is that the battery power is greater than or equal to the first preset threshold. At this time, the battery has sufficient remaining power, so the energy storage auxiliary device is kept in the first-level sleep state, and the number of times the battery is charged by the energy storage auxiliary device is cleared to zero. The second situation is that the energy storage element power is less than or equal to the second preset threshold, or the number of times the battery is charged by the energy storage auxiliary device is greater than the third preset threshold. At this time, it means that the energy storage element does not have enough reserve to replenish the battery or to prevent the energy storage element from being reduced in life or even damaged due to excessive power consumption. Therefore, the energy storage auxiliary device is controlled to be in the second-level sleep state to shut down each component in the energy storage auxiliary device to further reduce power consumption, and the number of times the battery is charged by the energy storage auxiliary device is cleared to zero.

[0075] Subsequently, if the user drives the car again, the onboard engine will charge the battery after the car starts. Once the battery voltage returns to the preset voltage range, the energy storage auxiliary device is activated and enters a discharging state. Then, with the engine continuously running to charge the battery and there is a surplus of electrical energy, the energy storage auxiliary device guides this surplus energy to the energy storage element to charge it, thereby achieving efficient energy recovery and utilization.

[0076] The above description is merely an embodiment of this application and does 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.

[0077] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A control method applied to an energy storage auxiliary device, characterized in that, The energy storage auxiliary device is used to electrically connect the vehicle and the energy storage element respectively, and the method includes: When the vehicle is determined to be in standby mode, the energy storage auxiliary device is controlled to enter a first-level sleep state in order to maintain the operation of the remote control component in the energy storage auxiliary device and to shut down other components in the energy storage auxiliary device except for the remote control component. The components of the energy storage auxiliary device, excluding the remote control component, are intermittently activated at a preset frequency to obtain the first charge of the vehicle's battery. When it is determined that the first battery level is less than the first preset threshold, the following steps are performed: The second charge level of the energy storage element and the number of times the battery has been charged by the energy storage auxiliary device are obtained; When it is determined that the second power level is greater than the second preset threshold and the number of times is less than or equal to the third preset threshold, the energy storage auxiliary device is controlled to be in a charging state, so as to turn on each component in the energy storage auxiliary device and enable the energy storage element to charge the battery through the energy storage auxiliary device.

2. The method according to claim 1, characterized in that, After performing the steps of intermittently activating other components of the energy storage auxiliary device at a preset frequency, excluding the remote control component, and acquiring a first charge level of the vehicle's battery, the method further includes: When it is determined that the first power is greater than or equal to the first preset threshold, the energy storage auxiliary device is controlled to continue to maintain the first-level sleep state and the count is reset to zero.

3. The method according to claim 1, characterized in that, After performing the steps of acquiring the second electrical charge of the energy storage element and the number of times the battery has been charged by the energy storage auxiliary device, the method further includes: When the second power is determined to be less than or equal to the second preset threshold, the energy storage auxiliary device is controlled to enter a secondary sleep state to shut down each component in the energy storage auxiliary device and reset the count to zero.

4. The method according to claim 1, characterized in that, After performing the steps of acquiring the second electrical charge of the energy storage element and the number of times the battery has been charged by the energy storage auxiliary device, the method further includes: When the number of occurrences exceeds the third preset threshold, the energy storage auxiliary device is controlled to enter a secondary sleep state to shut down each component in the energy storage auxiliary device and reset the number of occurrences to zero.

5. The method according to claim 1, characterized in that, After performing the step of controlling the energy storage auxiliary device to be in a replenishment state, the method further includes: The energy storage auxiliary device is controlled to be in a pre-sleep state to shut down the power conversion components in the energy storage auxiliary device.

6. The method according to claim 1, characterized in that, Before performing the step of controlling the energy storage auxiliary device to enter a first-level sleep state when it is determined that the vehicle is in a standby state, the method further includes: Upon receiving a standby signal, the energy storage auxiliary device is controlled to enter a pre-sleep state to shut down the power conversion components in the energy storage auxiliary device.

7. The method according to claim 6, characterized in that, After controlling the energy storage auxiliary device to enter a pre-dormant state, the method further includes: When it is determined that the vehicle has been turned off based on the level state of the target signal line in the vehicle, the vehicle is determined to be in standby mode, and the steps of controlling the energy storage auxiliary device to enter the first-level sleep state when it is determined that the vehicle is in standby mode are executed, as well as subsequent steps.

8. The method according to any one of claims 1-7, characterized in that, The method further includes: When the energy storage auxiliary device is in a pre-dormant state, a first-level dormant state, or a second-level dormant state, if a wake-up signal is received, the energy storage auxiliary device is controlled to be in a discharging state to turn on the various components in the energy storage auxiliary device and enable the vehicle to charge the energy storage element through the energy storage auxiliary device. At the same time, the count is reset to zero. The wake-up signal is generated by the energy storage auxiliary device based on the battery voltage being within a preset voltage range.

9. A controller, characterized in that, include: At least one processor and memory; The memory is coupled to the processor and is used to store instructions or programs that, when executed by the at least one processor, cause the at least one processor to perform the control method applied to the energy storage auxiliary device as described in any one of claims 1-7.

10. An energy storage auxiliary device, characterized in that, Includes the controller as described in claim 9.

Images