Power distribution management method and device for electric vehicle

Abstract

The present invention provides a power distribution management method and device for electric vehicles. The method is used for a power distribution management device provided with a virtualized controller. The virtualized controller is provided with multiple virtual machines, and each virtual machine is configured to control one or more preset load devices to realize corresponding vehicle functions. The power distribution management method includes: monitoring current sampling values ​​on multiple power supply lines; in response to the current sampling value on the power supply line connected to a load device exceeding the preset current threshold of the power supply line, disconnecting the power supply line to isolate the load device; and in response to the current sampling value on the power supply line connected to the virtualized controller exceeding its preset current threshold, shutting down one or more virtual machines based on a preset shutdown strategy, and shutting down the power supply line of the preset load device controlled by the virtual machine until the current sampling value meets the preset threshold condition.

Description

Technical Field

[0001] The present invention relates to the field of electric vehicle controllers, and in particular to a power distribution management method and device for an electric vehicle. Background Art

[0002] In order to meet the integration requirements of on-board controllers of electric vehicles, virtualization technology has gradually begun to be used in automotive embedded controllers. For example, multiple virtual machines that can realize controller functions are integrated into a microcontroller unit (MCU). That is, the original multiple controller software can run on the same MCU in the form of virtual machines (VMs), and the multiple virtual machines are managed by management software.

[0003] At the same time, the current mainstream vehicle electronic and electrical architecture is equipped with regional controllers or power distribution controllers. These controllers use electronic fuses (E-Fuses) instead of the original physical fuses to manage the power supply of the entire vehicle and isolate the power supply under failure conditions. Through reasonable power distribution management, the faulty load is disconnected from the vehicle power supply, thereby ensuring that safety-related controllers can continue to operate normally, ultimately ensuring the safety of vehicle use.

[0004] However, for integrated controllers that use virtualization technology, several virtual machines are integrated within them, making it impossible to directly and simply isolate their power supply. More specifically, for example, in the vehicle's power supply network, if an abnormal fault such as overcurrent or short circuit occurs in the power supply branch connected to the virtualized controller, if an electronic fuse is still used to disconnect the power supply to the virtualized controller, all virtual machines within the virtual controller will lose their respective functions. However, the functions of some of these virtual machines are closely related to vehicle safety, and simply stopping and shutting them down will threaten the safety of the vehicle. Therefore, the existing technology lacks a power distribution management solution for vehicle-mounted controllers that use virtualization technology, and cannot adapt to the technological development trend of controller virtualization.

[0005] In order to overcome the above-mentioned defects of the existing technology, the field urgently needs a power distribution management method and device for electric vehicles, which is used for the power distribution management of the vehicle-mounted integrated controller using virtualization technology, and can provide a power supply abnormality management strategy. On the basis of being compatible with the mainstream power distribution management devices in the existing technology, the power supply management of the integrated controller using virtualization technology is made more refined and flexible, and the availability of the vehicle-mounted electronic system is increased while ensuring the safety of the vehicle. Summary of the Invention

[0006] The following is a brief summary of one or more aspects to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all conceivable aspects and is neither intended to identify key or critical elements of all aspects nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that will be provided later.

[0007] In order to overcome the above-mentioned defects of the prior art, the present invention provides a power distribution management method for electric vehicles, which is used for a power distribution management device provided with a virtualized controller, wherein a plurality of virtual machines are provided in the virtualized controller, and each virtual machine is configured to control one or more preset load devices to realize corresponding vehicle functions. The power distribution management method includes: monitoring current sampling values ​​on a plurality of power supply lines; in response to the current sampling value on the power supply line connected to a load device exceeding the preset current threshold of the power supply line, disconnecting the power supply line to isolate the load device; and in response to the current sampling value on the power supply line connected to the virtualized controller exceeding its preset current threshold, shutting down one or more of the virtual machines based on a preset shutdown strategy, and shutting down the power supply line of the preset load device controlled by the virtual machine until the current sampling value meets the preset threshold condition.

[0008] In one embodiment, preferably, in response to a current sampling value on a power supply line connected to a load device exceeding a preset current threshold of the power supply line, disconnecting the power supply line to isolate the load device includes: in response to a current sampling value on a power supply line connected to a load device exceeding a preset current threshold of the power supply line, in addition to disconnecting the power supply line to isolate the load device, shutting down one or more virtual machines in the virtualization controller based on a preset shutdown strategy, and shutting down the power supply line of the preset load device controlled by the virtual machine until the current sampling value on the power supply line connected to the load device meets the preset threshold condition.

[0009] In one embodiment, preferably, the preset shutdown strategy includes: according to the vehicle safety integrity level standard, successively shutting down the power supply lines of the corresponding preset load devices in order from low to high levels of the preset load devices, and shutting down the virtual machines corresponding to the preset load devices until the corresponding current sampling value meets the preset threshold condition.

[0010] In one embodiment, preferably, the preset shutdown strategy also includes: in response to the fact that the vehicle safety integrity level of multiple preset load devices that currently need to be shut down is the same, first shutting down the preset load devices used to implement non-core functions, the core functions including steering assistance, braking control, drive control and vehicle control, or shutting down the corresponding preset load devices one by one in order of power consumption from large to small, and shutting down the virtual machines corresponding to the preset load devices until the corresponding current sampling value meets the preset threshold condition.

[0011] In one embodiment, preferably, multiple virtual machines are also configured to jointly control one or more shared load devices, and the preset shutdown strategy also includes: selecting the shared load device that currently needs to be shut down in order from low to high according to the vehicle safety integrity level standard of the shared load device; and shutting down the power supply line of the shared load device in response to the fact that no virtual machine is currently controlling and using the shared load device.

[0012] In one embodiment, preferably, the power distribution management method also includes: monitoring the current sampling value on the power supply line of the preset load device controlled by each virtual machine, and in response to the current sampling value on a power supply line exceeding its preset current threshold, shutting down the power supply line and shutting down the corresponding virtual machine.

[0013] In one embodiment, preferably, the power distribution management method also includes: after shutting off the power supply of the virtual machine and its corresponding preset load device so that the current sampling value on the power supply line of the preset load device controlled by the virtual machine meets its preset current threshold condition, restarting the virtual machine and restoring the connection of the power supply line of the preset load device controlled by the virtual machine; in response to the current sampling value still exceeding its preset current threshold, repeating the virtual machine restart and power supply line restoration work for a predetermined number of times; and in response to the current sampling value meeting its preset threshold condition within the predetermined number of times, controlling the virtual machine to maintain its working state and keeping the power supply line of the preset load device corresponding to the virtual machine connected.

[0014] In one embodiment, preferably, the power distribution management method also includes: after shutting down one or more virtual machines so that the current sampling value on the monitored power supply line meets its preset threshold condition, restarting the one or more virtual machines based on a preset recovery strategy, and restoring the power supply line of the preset load device controlled by the virtual machine, and the selection order of the preset load device and the corresponding virtual machine in the preset recovery strategy is opposite to the preset shutdown strategy; in response to the current sampling value still exceeding its preset current threshold, repeating the virtual machine restart and power supply line restoration work for a predetermined number of times; and in response to the current sampling value meeting its preset threshold condition within the predetermined number of times, controlling the virtual machine to maintain its working state, and keeping the power supply line of the preset load device corresponding to the virtual machine connected.

[0015] In one embodiment, preferably, each power supply line is provided with an electronic fuse, and the power distribution management method further comprises: implementing current sampling and connection and disconnection functions on the power supply line through the electronic fuse.

[0016] Another aspect of the present invention also provides a power distribution management device for an electric vehicle, including a power distribution controller and a virtualization controller, wherein a plurality of virtual machines are provided in the virtualization controller, each virtual machine being configured to control one or more preset load devices to realize corresponding vehicle functions, and the power distribution controller being configured to: monitor current sampling values ​​on a plurality of power supply lines; in response to a current sampling value on a power supply line connected to a load device exceeding a preset current threshold of the power supply line, disconnect the power supply line to isolate the load device; and in response to a current sampling value on a power supply line connected to the virtualization controller exceeding its preset current threshold, send a load power supply on-off instruction to the virtualization controller; the virtualization controller being configured to: according to the load power supply on-off instruction, shut down one or more of the virtual machines based on a preset shutdown strategy, and shut down the power supply line of the preset load device controlled by the virtual machine until the current sampling value meets the preset threshold condition.

[0017] In one embodiment, preferably, the power distribution management device is further configured to: when the power distribution controller disconnects the power supply line to isolate the load device in response to the current sampling value on the power supply line connected to a load device exceeding the preset current threshold of the power supply line, the virtualization controller also shuts down one or more virtual machines in the virtualization controller based on a preset shutdown strategy, and shuts down the power supply line of the preset load device controlled by the virtual machine until the current sampling value on the power supply line connected to the load device meets the preset threshold condition.

[0018] In one embodiment, preferably, the preset shutdown strategy includes: according to the vehicle safety integrity level standard, successively shutting down the power supply lines of the corresponding preset load devices in order from low to high levels of the preset load devices, and shutting down the virtual machines corresponding to the preset load devices until the corresponding current sampling value meets the preset threshold condition.

[0019] In one embodiment, preferably, the preset shutdown strategy also includes: in response to the fact that the vehicle safety integrity level of multiple preset load devices that currently need to be shut down is the same, first shutting down the preset load devices used to implement non-core functions, the core functions including steering assistance, braking control, drive control and vehicle control, or shutting down the corresponding preset load devices one by one in order of power consumption from large to small, and shutting down the virtual machines corresponding to the preset load devices until the corresponding current sampling value meets the preset threshold condition.

[0020] In one embodiment, preferably, multiple virtual machines are also configured to jointly control one or more shared load devices, and the preset shutdown strategy also includes: selecting the shared load device that currently needs to be shut down in order from low to high according to the vehicle safety integrity level standard of the shared load device; and shutting down the power supply line of the shared load device in response to the fact that no virtual machine is currently controlling and using the shared load device.

[0021] In one embodiment, preferably, the power distribution management device is also configured to: monitor the current sampling value on the power supply line of the preset load device controlled by each virtual machine, and in response to the current sampling value on a power supply line exceeding its preset current threshold, shut down the power supply line and shut down the corresponding virtual machine.

[0022] In one embodiment, preferably, the power distribution management device is further configured to: after shutting off the power supply of the virtual machine and its corresponding preset load device so that the current sampling value on the power supply line of the preset load device controlled by the virtual machine meets its preset current threshold condition, restart the virtual machine and restore the connection of the power supply line of the preset load device controlled by the virtual machine; in response to the current sampling value still exceeding its preset current threshold, repeat the virtual machine restart and power supply line restoration work for a predetermined number of times; and in response to the current sampling value meeting its preset threshold condition within the predetermined number of times, control the virtual machine to maintain its working state and keep the power supply line of the preset load device corresponding to the virtual machine connected.

[0023] In one embodiment, preferably, the power distribution management device is further configured to: after shutting down one or more virtual machines so that the current sampling value on the monitored power supply line meets its preset threshold condition, restart the one or more virtual machines based on a preset recovery strategy, and restore the power supply line of the preset load device controlled by the virtual machine, and the selection order of the preset load device and the corresponding virtual machine in the preset recovery strategy is opposite to the preset shutdown strategy; in response to the current sampling value still exceeding its preset current threshold, repeat the virtual machine restart and power supply line restoration work for a predetermined number of times; and in response to the current sampling value meeting its preset threshold condition within the predetermined number of times, control the virtual machine to maintain the working state, and keep the power supply line of the preset load device corresponding to the virtual machine connected.

[0024] In one embodiment, preferably, each power supply line is provided with an electronic fuse for implementing current sampling and connection and disconnection functions on the power supply line.

[0025] The present invention also provides a power distribution management device for an electric vehicle, comprising: a memory; and a processor coupled to the memory, wherein the processor is configured to execute the power distribution management method for an electric vehicle as described in any one of the above items.

[0026] The present invention also provides a computer-readable medium having a computer program stored thereon, which, when executed by a processor, implements the power distribution management method for an electric vehicle as described in any one of the above items. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above features and advantages of the present invention will be better understood after reading the detailed description of the embodiments of the present disclosure in conjunction with the following drawings. In the drawings, the components are not necessarily drawn to scale, and components with similar related properties or characteristics may have the same or similar reference numerals.

[0028] Figure 1 This is a schematic diagram illustrating the working principle of a power distribution management device for an electric vehicle according to the prior art;

[0029] Figure 2 is a flow chart of a method for managing power distribution of an electric vehicle according to one aspect of the present invention;

[0030] Figure 3 is a schematic diagram of the device structure and working principle of a power distribution management device for an electric vehicle according to an embodiment of the present invention;

[0031] Figure 4 is a schematic diagram of the device structure of a virtual controller according to an embodiment of the present invention;

[0032] Figure 5is a schematic diagram of a device structure of a virtual controller according to another embodiment of the present invention; and

[0033] Figure 6 FIG. 4 is a schematic diagram of the structure of a power distribution management device for an electric vehicle according to an embodiment of the present invention.

[0034] For the sake of clarity, a brief description of the reference numerals is given below:

[0035] 101 power distribution controller

[0036] 102 shut-off switch

[0037] 103 load equipment

[0038] 301 power distribution controller

[0039] 302 Virtualization Controller

[0040] 303 shut-off switch

[0041] 304 load equipment

[0042] 401a, 401b, and 401c virtual machines

[0043] 402 Management Procedure

[0044] 403MCU Hardware

[0045] 404a, 404b, 404c turn off switches

[0046] 405a, 405b, 405c preset load devices

[0047] 406 Shared Load DETAILED DESCRIPTION

[0048] The following specific embodiments illustrate the embodiments of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this embodiment. On the contrary, the purpose of introducing the invention in conjunction with the embodiment is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description.

[0049] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0050] Furthermore, the terms "upper," "lower," "left," "right," "top," "bottom," "horizontal," and "vertical" used in the following description should be understood to refer to the orientations depicted in that section and the accompanying drawings. These relative terms are used solely for convenience of description and do not necessarily imply that the devices described herein must be manufactured or operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0051] It will be understood that although the terms "first," "second," "third," etc. may be used herein to describe various components, regions, layers, and / or portions, these components, regions, layers, and / or portions should not be limited by these terms, and these terms are merely used to distinguish different components, regions, layers, and / or portions. Thus, a first component, region, layer, and / or portion discussed below may be referred to as a second component, region, layer, and / or portion without departing from some embodiments of the present invention.

[0052] Figure 1 This is a schematic diagram illustrating the working principle of a power distribution management device for an electric vehicle in the prior art.

[0053] like Figure 1 As shown, the mainstream in-vehicle electronic and electrical architecture in the prior art is equipped with a power distribution controller 101. This power distribution controller 101 can also be other control devices such as a regional controller with power distribution functions. The power distribution controller 101 can use electronic fuses instead of traditional physical fuses to manage the power supply of the entire vehicle and isolate the power supply in the event of a failure. Multiple disconnect switches 102 are installed on the power supply lines of multiple load devices 103. The power distribution controller 101 is configured to receive current sampling values ​​on each power supply line and can manage the opening and closing of the disconnect switches 102 based on these current values.

[0054] For example, the power distribution controller 101 can disconnect the faulty load from the vehicle power supply when the electronic fuse detects an abnormality based on a reasonable preset power distribution management strategy, thereby ensuring the normal operation of safety-related equipment and ultimately ensuring the safety of the vehicle.

[0055] However, for integrated controllers that use virtualization technology, the above power distribution management method cannot be simply applied. Shutting off the power supply of the virtualized controller in a blanket manner will cause all virtual machines to fail to work, which will pose a threat and hidden danger to the user's vehicle safety.

[0056] In order to overcome the above-mentioned defects of the prior art, the present invention provides a power distribution management method and device for electric vehicles, which is used for the power distribution management of an on-board integrated controller using virtualization technology. It can provide a power supply abnormality management strategy. On the basis of being compatible with the mainstream power distribution management devices in the prior art, it makes the power supply management of the integrated controller using virtualization technology more refined and flexible, and increases the availability of the on-board electronic system while ensuring the safety of the vehicle.

[0057] The power distribution management method for electric vehicles provided by the present invention is used for a power distribution management device provided with a virtualized controller, wherein the virtualized controller is provided with multiple virtual machines, each of which is configured to control one or more preset load devices to realize corresponding vehicle functions. The specific steps of the power distribution management method can be found in Figure 2 .

[0058] Figure 2 FIG2 is a flow chart of a method for managing power distribution of an electric vehicle according to one aspect of the present invention.

[0059] Please refer to Figure 2 The electric vehicle power distribution manager 200 provided by the present invention may include:

[0060] Step 201: monitor current sampling values ​​on multiple power supply lines.

[0061] The multiple power supply lines may include power supply lines directly connected to load devices and power supply lines for supplying power to the virtualization controller.

[0062] Step 202 : In response to a current sampling value on a power supply line connected to a load device exceeding a preset current threshold of the power supply line, disconnect the power supply line to isolate the load device.

[0063] It is easy to understand that when an abnormality occurs in the power supply line of a load device, the power supply of the device can be shut down to achieve electrical isolation to improve safety. This step is similar to the power distribution management in the prior art.

[0064] Please continue to refer to Figure 2 The electric vehicle power distribution manager 200 provided by the present invention may further include:

[0065] Step 203: In response to the current sampling value on the power supply line connected to the virtualization controller exceeding its preset current threshold, shut down one or more virtual machines based on a preset shutdown strategy, and shut down the power supply line of the preset load device controlled by the virtual machine until the current sampling value meets the preset threshold condition.

[0066] Unlike existing technologies, the electric vehicle power distribution management method provided by the present invention targets an on-board management device that utilizes virtualization technology and is equipped with a virtualized controller. This virtualized controller includes multiple virtual machines, each of which is configured to control one or more preset load devices to implement corresponding vehicle functions. As those skilled in the art will readily understand, if an overcurrent anomaly occurs in the power supply circuit of the virtualized controller, simply shutting off the power to the virtualized controller would render all virtual machines inoperable, posing a threat and potential safety hazard to vehicle users.

[0067] Instead of directly shutting off the overall power supply of the virtualization controller, the power distribution management method provided by the present invention adopts the method of shutting down the power supply of some virtual machines and the preset loads corresponding to the virtual machines. While eliminating power distribution failures, it can ensure that the virtual machines related to safety functions continue to work normally, thereby maximizing vehicle safety.

[0068] Further, in a preferred embodiment, in response to the current sampling value on the power supply line connected to a load device exceeding the preset current threshold of the power supply line, disconnecting the power supply line to isolate the load device may include: in response to the current sampling value on the power supply line connected to a load device exceeding the preset current threshold of the power supply line, in addition to disconnecting the power supply line to isolate the load device, shutting down one or more virtual machines in the virtualization controller based on a preset shutdown strategy, and shutting down the power supply line of the preset load device controlled by the virtual machine until the current sampling value on the power supply line connected to the load device meets the preset threshold condition.

[0069] That is to say, in this embodiment, when the power distribution management method for electric vehicles provided by the present invention executes step 202, that is, when an overcurrent abnormality occurs in the power supply line of the directly managed load equipment, while shutting off the power supply of these load equipment, the virtualization controller also selectively shuts off the power supply of some virtual machines and the preset load equipment corresponding to the virtual machine, thereby helping to restore the power supply line with the overcurrent abnormality as soon as possible, and then ensuring that the safety-related load functions are not affected by the overcurrent fault and continue to work normally.

[0070] It should be noted that the load devices in step 202 are not controlled and managed by the virtualization controller, but are directly managed by the power distribution controller for power on and off. To distinguish them, this article refers to loads controlled and managed by the virtualization controller as preset load devices, while those directly managed by the power distribution controller are referred to as load devices.

[0071] In this embodiment, in both cases of step 202 and step 203 , the virtual controller participates in power distribution management, and shuts down some virtual machines and preset load devices according to a preset shutdown strategy to restore abnormal faults in the power supply line.

[0072] Furthermore, in a preferred embodiment, in the power distribution management method for electric vehicles provided by the present invention, the preset shutdown strategy may include: according to the vehicle safety integrity level standard, successively shutting down the power supply lines of the corresponding preset load devices in order from low to high levels of the preset load devices, and shutting down the virtual machines corresponding to the preset load devices until the corresponding current sampling value meets the preset threshold conditions.

[0073] The Automotive Safety Integrity Level (ASIL) standard is a risk-based classification system for road vehicle functional safety, defined by the ISO 26262 standard. It defines four functional safety levels: ASIL A, ASIL B, ASIL C, and ASIL D. ASIL A represents the lowest level of safety, while ASIL D represents the highest level of automotive risk. For example, systems such as airbags, anti-lock brakes, and power steering are rated ASIL-D, applicable to the highest level of safety assurance, as the risk associated with such failures is the highest. Accessory components such as taillights and wipers typically only require ASIL-A, while headlights and brake lights are typically ASIL-B, and cruise control is typically ASIL-C. Determining the power supply and shutdown order of pre-set load devices based on their respective functional levels can effectively address power line failures while maximizing vehicle safety.

[0074] In a preferred embodiment, the preset shutdown strategy may also include: in response to the fact that the vehicle safety integrity level of multiple preset load devices that currently need to be shut down is the same, first shutting down the preset load devices used to implement non-core functions, the core functions including steering assistance, braking control, drive control and vehicle control, or shutting down the corresponding preset load devices one by one in order of power consumption from large to small, and shutting down the virtual machines corresponding to the preset load devices until the corresponding current sampling value meets the preset threshold condition.

[0075] Furthermore, in one embodiment, the power distribution management method provided by the present invention can also comprehensively consider the functional importance and power consumption of the preset load equipment, so as to determine the selection order of shutting down the power supply of the virtual machine and the preset load equipment, thereby maximizing vehicle safety while eliminating abnormal power supply line failures.

[0076] In addition, in some virtualization controllers, multiple virtual machines are also configured to jointly control one or more shared load devices. Accordingly, the preset shutdown strategy may also include: selecting the shared load device that currently needs to be shut down in order from low to high according to the automotive safety integrity level standard of the shared load device; and shutting down the power supply line of the shared load device in response to the fact that no virtual machine is currently controlling and using the shared load device.

[0077] In other words, for a shared load device controlled by multiple virtual machines, when shutting down its power supply, it is necessary to ensure that no other virtual machines are using it. In this way, the power distribution management method provided by the present invention can eliminate related circuit abnormalities by shutting down the virtual machine without affecting the operating functions of other virtual machines that are working normally, thereby reducing the impact scope of the power supply line abnormality.

[0078] It is easy for those skilled in the art to understand that the shutdown strategy is only illustrated here for the purpose of illustrating that the power distribution management method provided by the present invention can hierarchically shut down multiple virtual machines and corresponding preset loads according to abnormal faults of the current sampling values ​​of the power supply lines, and is not used to limit the protection scope of the present invention. In fact, the preset shutdown strategy can also include other similar reasonable choices, which can be included in the power distribution management method provided by the present invention and should also be included in the protection scope of the present invention.

[0079] At the same time, in a preferred embodiment, the power distribution management method may also include: monitoring the current sampling value on the power supply line of each preset load device controlled by the virtual machine, and in response to the current sampling value on a power supply line exceeding its preset current threshold, shutting down the power supply line and shutting down the corresponding virtual machine.

[0080] In steps 202 and 203 above, the load devices directly managed by the power distribution controller and the virtualized controller itself are monitored respectively. In this embodiment, the current monitoring and power distribution management of the power supply lines are performed separately for the preset load devices controlled by multiple virtual machines inside the virtualized controller, which fully utilizes the advantages of applying virtualization technology in the controller and makes the power distribution management method provided by the present invention more sophisticated and flexible.

[0081] In the power distribution management method for electric vehicles provided by the present invention, the power supply of the virtual machine and the load is shut down in stages mainly by monitoring whether the current sampling value on each power supply line of the load has an overcurrent anomaly, thereby eliminating the overcurrent fault of the corresponding power supply line. It should be understood by those skilled in the art that the overcurrent fault of the power supply line is sometimes caused by some transient abnormal faults. Therefore, after shutting down the load to eliminate the line overcurrent fault, it is possible to appropriately try to restore the power supply of some loads while continuing to monitor the power supply line current, thereby ensuring that the current meets the preset conditions and restoring the load function to the maximum extent possible, thereby minimizing the impact on the normal use of the vehicle. The recovery work is described in detail below with reference to the embodiments.

[0082] In a preferred embodiment, the power distribution management method for electric vehicles provided by the present invention may also include: after shutting off the power supply of the virtual machine and its corresponding preset load device so that the current sampling value on the power supply line of the preset load device controlled by the virtual machine meets its preset current threshold condition, restarting the virtual machine and restoring the connection of the power supply line of the preset load device controlled by the virtual machine; in response to the current sampling value still exceeding its preset current threshold, repeating the virtual machine restart and power supply line restoration work for a predetermined number of times; and in response to the current sampling value meeting its preset threshold condition within the predetermined number of times, controlling the virtual machine to maintain the working state and keeping the power supply line of the preset load device corresponding to the virtual machine connected.

[0083] In this embodiment, the power supply lines of the preset load devices controlled by each virtual machine in the virtual controller can be managed and controlled separately. It is easy to understand that after shutting down some preset load devices and the operation of the corresponding virtual machines so that the corresponding power supply lines return to normal, you can try to restore these devices and continue to monitor the line current sampling values. If the power supply line current meets the preset conditions after restoration, the operation of these loads or virtual machines will be restored; and if the overcurrent anomaly still occurs after restoration, you can try a few more times, for example, a predetermined number of times is three. If the current meets the conditions when restoring the load power supply and restarting the virtual machine during these three attempts, the restoration will be maintained. If the power supply line where the anomaly occurred still has overcurrent after three attempts, the corresponding load and virtual machine will be kept in the off state, and the error can be reported for repair later.

[0084] At the same time, in one embodiment, the power distribution management method 200 for electric vehicles provided by the present invention also executes the shutdown of multiple virtual machines and corresponding preset load devices in steps 202 and 203 described above. Accordingly, the power distribution management method provided by the present invention may also include: after shutting down one or more virtual machines so that the current sampling value on the monitored power supply line meets its preset threshold condition, restarting the one or more virtual machines based on a preset recovery strategy, and restoring the power supply line of the preset load device controlled by the virtual machine, and the selection order of the preset load device and the corresponding virtual machine in the preset recovery strategy is opposite to the preset shutdown strategy; in response to the current sampling value still exceeding its preset current threshold, repeating the virtual machine restart and power supply line restoration work for a predetermined number of times; and in response to the current sampling value meeting its preset threshold condition within the predetermined number of times, controlling the virtual machine to maintain the working state, and keeping the power supply line of the preset load device corresponding to the virtual machine connected.

[0085] The operating steps for load and virtual machine recovery are similar to those in the previous embodiment. The difference is that in steps 202 and 203 described above, the order of shutting down the load and virtual machine is selected according to the preset shutdown strategy. Correspondingly, in this embodiment, the load and virtual machine to be restarted and recovered are selected according to the preset recovery strategy. The selection order of the preset load devices and corresponding virtual machines in the preset recovery strategy is opposite to that of the preset shutdown strategy.

[0086] For example, in the preset shutdown strategy, the loads and virtual machines that need to be shut down can be selected in descending order based on the Automotive Safety Integrity Level (ASIL) of the preset load device functions. Then, in the preset recovery strategy, the corresponding preset load devices and virtual machines are selected for restart and recovery based on the ASIL from high to low. Similarly, in the preset shutdown strategy, the loads of non-core functions need to be shut down first, so when recovering, the loads of core functions will be restored first. The preset shutdown strategy selects loads and corresponding virtual machines in order of power consumption from large to small, while the preset recovery strategy selects loads and corresponding virtual machines in order of power consumption from small to large. This setting can give maximum priority to the normal operation of safety-related or functionally important load devices and reduce the impact of power distribution management on the overall operation of the vehicle.

[0087] In addition, in a preferred embodiment, an electronic fuse can be provided on each power supply line. The electronic fuse can have current sampling and shutdown management functions, thereby replacing traditional fuses, making the power distribution management method provided by the present invention more convenient and intelligent to operate.

[0088] Although the above methods are illustrated and described as a series of acts for simplicity of explanation, it is to be understood and appreciated that these methods are not limited by the order of the acts, as some acts may occur in a different order and / or concurrently with other acts from those illustrated and described herein or not illustrated and described herein but understandable to those skilled in the art according to one or more embodiments.

[0089] Another aspect of the present invention further provides a power distribution management device for an electric vehicle, which is used to execute any of the power distribution management methods described above.

[0090] Figure 3 FIG2 is a schematic diagram of the device structure and working principle of a power distribution management device for an electric vehicle according to an embodiment of the present invention.

[0091] like Figure 3 As shown, the power distribution management device for an electric vehicle provided by the present invention includes a power distribution controller 301 and a virtualization controller 302, as well as a plurality of corresponding shut-off switches 303 and load devices 304, each shut-off switch 303 being used to control the power supply on and off of the corresponding load device 304. The virtualization controller 302 has an independent power supply line, and the power distribution controller 301 can receive the current sampling values ​​of all power supply lines and perform power distribution control based on the current value. The virtualization controller 302 can be provided with a plurality of virtual machines, each of which is configured to control one or more preset load devices to realize the corresponding vehicle function. In addition, the power distribution controller 301 and the virtualization controller 302 can be communicatively connected to realize the corresponding control function.

[0092] The power distribution controller 301 can be configured to: monitor the current sampling values ​​on multiple power supply lines; disconnect the power supply line to isolate the load device in response to the current sampling value on the power supply line connected to a load device exceeding the preset current threshold of the power supply line; and send a load power on / off instruction to the virtualization controller in response to the current sampling value on the power supply line connected to the virtualization controller exceeding its preset current threshold.

[0093] At the same time, the virtualization controller 302 can be configured to: shut down one or more virtual machines based on the preset shutdown strategy according to the load power on / off instruction, and shut down the power supply line of the preset load device controlled by the virtual machine until the current sampling value meets the preset threshold condition.

[0094] The internal structure of the virtualization controller 302 can be found in Figure 4 , Figure 4 FIG. 4 is a schematic diagram of a virtual controller according to an embodiment of the present invention.

[0095] Please refer to Figure 4The virtual controller includes multiple virtual machines 401a, 401b, and 401c, which are managed by a hypervisor 402. The virtual controller also includes corresponding MCU hardware 403. Each virtual machine is configured to control one or more preset load devices to implement corresponding vehicle functions. A power supply circuit for the preset load devices is also equipped with a disconnect switch to control the power supply to the preset load device corresponding to the virtual machine.

[0096] It is easy to understand that, for example, virtual machines 401a, 401b, and 401c are used to control preset load devices 405a, 405b, and 405c, respectively, and their respective power supply lines are also provided with disconnect switches 404a, 404b, and 404c to control their respective power supply on and off.

[0097] In a preferred embodiment, the power distribution management device can be further configured to: when the power distribution controller disconnects the power supply line to isolate the load device in response to the current sampling value on the power supply line connected to a load device exceeding the preset current threshold of the power supply line, the virtualization controller also shuts down one or more virtual machines in the virtualization controller based on a preset shutdown strategy, and shuts down the power supply line of the preset load device controlled by the virtual machine until the current sampling value on the power supply line connected to the load device meets the preset threshold condition.

[0098] It should be noted that the power supply control of the preset load devices corresponding to multiple virtual machines can be executed by the virtual controller according to the power on / off instructions of the power distribution controller, or by the virtual controller itself. There is no specific limitation on the execution subject here.

[0099] In a preferred embodiment, when the power distribution management device provided by the present invention is configured to execute the above method steps, the preset shutdown strategy based on it may include: according to the automobile safety integrity level standard, the power supply lines of the corresponding preset load devices are shut down in sequence in order from low to high levels of the preset load devices, and the virtual machines corresponding to the preset load devices are shut down until the corresponding current sampling value meets the preset threshold conditions.

[0100] In one embodiment, the preset shutdown strategy may also include: in response to the fact that the vehicle safety integrity level of multiple preset load devices that currently need to be shut down is the same, first shutting down the preset load devices used to implement non-core functions, the core functions including steering assistance, braking control, drive control and vehicle control, or shutting down the corresponding preset load devices one by one in order of power consumption from large to small, and shutting down the virtual machines corresponding to the preset load devices until the corresponding current sampling value meets the preset threshold condition.

[0101] The specific instructions have been elaborated in the method section above and will not be repeated here.

[0102] In a preferred embodiment, reference may be made to Figure 4 , multiple virtual machines 401a, 401b, and 401c can also be configured to jointly control one or more shared load devices 406. Accordingly, the preset shutdown strategy can also include: selecting the shared load device that currently needs to be shut down in order from low to high according to the automotive safety integrity level standard of the shared load device; and shutting down the power supply line of the shared load device in response to the fact that no virtual machine is currently controlling and using the shared load device.

[0103] Figure 5 FIG. 4 is a schematic diagram of a device structure of a virtual controller according to another embodiment of the present invention.

[0104] Figure 5 The embodiment shown and Figure 4 The difference between the illustrated embodiments is that current sampling monitoring of the power supply lines of the preset load devices controlled by each virtual machine is added. Therefore, the power distribution management device is further configured to: monitor the current sampling values ​​on the power supply lines of each preset load device controlled by the virtual machine, and in response to the current sampling value on a power supply line exceeding its preset current threshold, shut down the power supply line and shut down the corresponding virtual machine.

[0105] It is easy to understand that the power supply control of the preset load device corresponding to each virtual machine can be executed by the virtual controller according to the instructions of the power distribution controller, or the virtual controller itself can be configured to execute it. The present invention does not limit the execution subject.

[0106] Furthermore, in this embodiment, the power distribution management device can be further configured to: after shutting off the power supply of the virtual machine and its corresponding preset load device so that the current sampling value on the power supply line of the preset load device controlled by the virtual machine meets its preset current threshold condition, restart the virtual machine and restore the connection of the power supply line of the preset load device controlled by the virtual machine; in response to the current sampling value still exceeding its preset current threshold, repeat the virtual machine restart and power supply line restoration work for a predetermined number of times; and in response to the current sampling value meeting its preset threshold condition within the predetermined number of times, control the virtual machine to maintain its working state and keep the power supply line of the preset load device corresponding to the virtual machine connected.

[0107] At the same time, you can continue to combine reference Figure 3 ,exist Figure 3In the embodiment shown, the power distribution management device can be further configured to: after shutting down one or more virtual machines so that the current sampling value on the monitored power supply line meets its preset threshold condition, restart the one or more virtual machines based on a preset recovery strategy, and restore the power supply line of the preset load device controlled by the virtual machine, and the selection order of the preset load device and the corresponding virtual machine in the preset recovery strategy is opposite to the preset shutdown strategy; in response to the current sampling value still exceeding its preset current threshold, repeat the virtual machine restart and power supply line restoration work for a predetermined number of times; and in response to the current sampling value meeting its preset threshold condition within the predetermined number of times, control the virtual machine to maintain its working state, and keep the power supply line of the preset load device corresponding to the virtual machine connected.

[0108] Similar to shutting down virtual machines and loads, the recovery work here can be executed by the power distribution controller sending instructions to the virtualization controller, or by the virtualization controller itself. The specific steps have been expanded in the method section above and will not be repeated here.

[0109] At the same time, in a preferred embodiment, the power distribution management device for electric vehicles provided by the present invention is provided with an electronic fuse on each power supply line, which is used to realize the current sampling and connection and shutdown functions on the power supply line, so that the power distribution management method provided by the present invention can achieve more refined management while being more convenient and efficient to execute.

[0110] Figure 6 FIG. 4 is a schematic diagram of the structure of a power distribution management device for an electric vehicle according to an embodiment of the present invention.

[0111] According to another aspect of the present invention, an embodiment of a power distribution management device 600 for an electric vehicle is also provided herein.

[0112] like Figure 6 As shown, the power distribution management device 600 for an electric vehicle provided in this embodiment may include a memory 601 and a processor 602 coupled to the memory 601. The processor 602 may be configured to implement any of the power distribution management methods for an electric vehicle described above.

[0113] For example, the processor 602 may be integrated with the power distribution controller and the virtualization controller described above.

[0114] According to another aspect of the present invention, an embodiment of a computer storage medium is also provided herein.

[0115] The computer storage medium stores a computer program which, when executed by a processor, can implement the steps of any of the above-mentioned methods for managing power distribution of electric vehicles.

[0116] Those skilled in the art will further appreciate that the various illustrative logic blocks, modules, circuits, and algorithmic steps described in conjunction with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or a combination of the two. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps are generally described above in terms of their functionality. Whether such functionality is implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system. A skilled person may implement the described functionality in different ways for each specific application, but such implementation decisions should not be interpreted as resulting in a departure from the scope of the present invention.

[0117] The processor described in this case can be implemented using electronic hardware, computer software or any combination thereof. Whether such processors are implemented as hardware or software will depend on the specific application and the overall design constraints imposed on the system. As an example, the processor presented in this disclosure, any part of the processor, or any combination of processors can be implemented with a microprocessor, a microcontroller, a digital signal processor (DSP), a field programmable gate array (FPGA), a programmable logic device (PLD), a state machine, a gating logic, a discrete hardware circuit, and other suitable processing components configured to perform the various functions described throughout this disclosure. The functionality of the processor presented in this disclosure, any part of the processor, or any combination of processors can be implemented with software executed by a microprocessor, a microcontroller, a DSP or other suitable platform.

[0118] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. The software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read and write information from / to the storage medium. In an alternative, the storage medium may be integrated into the processor. The processor and storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In an alternative, the processor and storage medium may reside in a user terminal as discrete components.

[0119] In one or more exemplary embodiments, the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software as a computer program product, the functions may be stored on or transmitted via a computer-readable medium as one or more instructions or codes. Computer-readable media include both computer storage media and communication media, including any media that facilitates the transfer of a computer program from one location to another. A storage medium may be any available medium that can be accessed by a computer. By way of example and not limitation, such computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Any connection is also properly referred to as a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwaves, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwaves are included in the definition of medium. As used herein, disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc, where disks typically reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

[0120] The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A power distribution management method for an electric vehicle, for use in a power distribution management device equipped with a virtualized controller, wherein the virtualized controller is equipped with multiple virtual machines, each of which is configured to control one or more preset load devices to implement corresponding vehicle functions, the power distribution management method comprising: Monitor current sampling values ​​on multiple power supply lines; In response to a current sampling value on a power supply line connected to a load device exceeding a preset current threshold of the power supply line, disconnecting the power supply line to isolate the load device; as well as In response to a current sampling value on a power supply line connected to the virtualization controller exceeding a preset current threshold, shutting down one or more virtual machines based on a preset shutdown policy, and shutting down the power supply line of a preset load device controlled by the virtual machine until the current sampling value meets a preset threshold condition; The preset shutdown strategy includes: shutting down the power supply lines of corresponding preset load devices in ascending order of the levels of the preset load devices according to the vehicle safety integrity level standard, and shutting down the virtual machines corresponding to the preset load devices until the corresponding current sampling values ​​meet the preset threshold conditions; monitoring current sampling values ​​on power supply lines of preset load devices controlled by each of the virtual machines, and in response to a current sampling value on a power supply line exceeding a preset current threshold, shutting down the power supply line and shutting down the corresponding virtual machine; After power supply to the virtual machine and its corresponding preset load device is turned off so that a current sampling value on a power supply line of the preset load device controlled by the virtual machine meets a preset current threshold condition, the virtual machine is restarted and the power supply line of the preset load device controlled by the virtual machine is restored; In response to the current sampling value still exceeding the preset current threshold, repeatedly performing the virtual machine restart and power supply line restoration work for a predetermined number of times; and In response to the current sampling value satisfying its preset threshold condition within the predetermined number of times, the virtual machine is controlled to maintain a working state, and the power supply line of the preset load device corresponding to the virtual machine is kept connected.

2. The power distribution management method according to claim 1, wherein: The method of disconnecting the power supply line to isolate the load device in response to a current sampling value on the power supply line connected to the load device exceeding a preset current threshold of the power supply line comprises: In response to a current sampling value on a power supply line connected to a load device exceeding a preset current threshold of the power supply line, In addition to disconnecting the power supply line to isolate the load device, one or more virtual machines in the virtualization controller are shut down based on the preset shutdown strategy, and the power supply line of the preset load device controlled by the virtual machine is shut down until the current sampling value on the power supply line connected to the load device meets the preset threshold condition.

3. The power distribution management method according to claim 1, wherein: The preset closing strategy also includes: In response to the same vehicle safety integrity level of multiple preset load devices that currently need to shut down power supply, First, shut down the preset load devices used to implement non-core functions. The core functions include steering assistance, brake control, drive control and vehicle control, or shut down the corresponding preset load devices one by one in order of power consumption from large to small, and shut down the virtual machines corresponding to the preset load devices until the corresponding current sampling value meets the preset threshold condition.

4. The power distribution management method according to claim 1, wherein: The multiple virtual machines are further configured to jointly control one or more shared load devices, and the preset shutdown strategy further includes: According to the vehicle safety integrity level standard of the shared load equipment, selecting the shared load equipment that currently needs to shut down power supply in descending order of level; and In response to the fact that no virtual machine is currently controlling and using the shared load device, the power supply line of the shared load device is turned off.

5. The power distribution management method according to claim 1, wherein: The power distribution management method further includes: After shutting down one or more virtual machines so that the current sampling value on the monitored power supply line meets its preset threshold condition, restarting the one or more virtual machines based on a preset recovery strategy and restoring the power supply line connected to the preset load device controlled by the virtual machine, wherein the order of selecting the preset load devices and the corresponding virtual machines in the preset recovery strategy is opposite to that of the preset shutdown strategy; In response to the current sampling value still exceeding the preset current threshold, repeatedly performing the virtual machine restart and power supply line restoration work for a predetermined number of times; and In response to the current sampling value satisfying its preset threshold condition within the predetermined number of times, the virtual machine is controlled to maintain a working state, and the power supply line of the preset load device corresponding to the virtual machine is kept connected.

6. The power distribution management method according to any one of claims 1 to 5, characterized in that: Each power supply line is provided with an electronic fuse, and the power distribution management method further comprises: The electronic fuse is used to implement current sampling and on / off functions on the power supply line.

7. A power distribution management device for an electric vehicle, comprising a power distribution controller and a virtualization controller, wherein the virtualization controller is provided with a plurality of virtual machines, each of which is configured to control one or more preset load devices to realize corresponding vehicle functions. The power distribution controller is configured to: Monitor current sampling values ​​on multiple power supply lines; In response to a current sampling value on a power supply line connected to a load device exceeding a preset current threshold of the power supply line, disconnecting the power supply line to isolate the load device; as well as In response to a current sampling value on a power supply line connected to the virtualized controller exceeding a preset current threshold, sending a load power supply on / off instruction to the virtualized controller; The virtualization controller is configured to: According to the load power on / off instruction, shut down one or more of the virtual machines based on a preset shutdown strategy, and shut down the power supply line of the preset load device controlled by the virtual machine until the current sampling value meets the preset threshold condition; in, The preset shutdown strategy includes: according to the vehicle safety integrity level standard, in order of the preset load devices from low to high levels, shutting down the power supply lines of the corresponding preset load devices, and shutting down the virtual machines corresponding to the preset load devices until the corresponding current sampling values ​​meet the preset threshold conditions; The power distribution management device is further configured to: monitor the current sampling value on the power supply line of the preset load device controlled by each virtual machine, and in response to the current sampling value on a power supply line exceeding its preset current threshold, shut down the power supply line and shut down the corresponding virtual machine; The power distribution management device is further configured to: after shutting down the power supply of the virtual machine and its corresponding preset load device so that the current sampling value on the power supply line of the preset load device controlled by the virtual machine meets its preset current threshold condition, restart the virtual machine and restore the power supply line of the preset load device controlled by the virtual machine; In response to the current sampling value still exceeding the preset current threshold, repeatedly performing the virtual machine restart and power supply line restoration work for a predetermined number of times; and In response to the current sampling value satisfying its preset threshold condition within the predetermined number of times, the virtual machine is controlled to maintain a working state, and the power supply line of the preset load device corresponding to the virtual machine is kept connected.

8. The power distribution management device according to claim 7, characterized in that: The power distribution management device is further configured to: When the power distribution controller disconnects the power supply line to isolate the load device in response to a current sampling value on the power supply line connected to the load device exceeding a preset current threshold of the power supply line, The virtualization controller also shuts down one or more virtual machines in the virtualization controller based on the preset shutdown strategy, and cuts off the power supply line of the preset load device controlled by the virtual machine until the current sampling value on the power supply line connected to the load device meets the preset threshold condition.

9. The power distribution management device according to claim 7, characterized in that: The preset closing strategy also includes: In response to the same vehicle safety integrity level of multiple preset load devices that currently need to shut down power supply, First, shut down the preset load devices used to implement non-core functions. The core functions include steering assistance, brake control, drive control and vehicle control, or shut down the corresponding preset load devices one by one in order of power consumption from large to small, and shut down the virtual machines corresponding to the preset load devices until the corresponding current sampling value meets the preset threshold condition.

10. The power distribution management device according to claim 7, wherein: The multiple virtual machines are further configured to jointly control one or more shared load devices, and the preset shutdown strategy further includes: According to the vehicle safety integrity level standard of the shared load equipment, selecting the shared load equipment that currently needs to shut down power supply in descending order of level; and In response to the fact that no virtual machine is currently controlling and using the shared load device, the power supply line of the shared load device is turned off.

11. The power distribution management device according to claim 7, wherein: The power distribution management device is further configured to: After shutting down one or more virtual machines so that the current sampling value on the monitored power supply line meets its preset threshold condition, restarting the one or more virtual machines based on a preset recovery strategy and restoring the power supply line connected to the preset load device controlled by the virtual machine, wherein the order of selecting the preset load devices and the corresponding virtual machines in the preset recovery strategy is opposite to that of the preset shutdown strategy; In response to the current sampling value still exceeding the preset current threshold, repeatedly performing the virtual machine restart and power supply line restoration work for a predetermined number of times; as well as In response to the current sampling value satisfying its preset threshold condition within the predetermined number of times, the virtual machine is controlled to maintain a working state, and the power supply line of the preset load device corresponding to the virtual machine is kept connected.

12. The power distribution management device according to any one of claims 7 to 11, characterized in that: Each power supply line is equipped with an electronic fuse to implement current sampling and connection and disconnection functions on the power supply line.

13. A power distribution management device for an electric vehicle, comprising: Memory; as well as A processor coupled to the memory, wherein the processor is configured to execute the power distribution management method for an electric vehicle according to any one of claims 1 to 6.

14. A computer-readable medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the power distribution management method for an electric vehicle according to any one of claims 1 to 6 is implemented.

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