A monitoring system and method for preventing power failure in intelligent connected vehicles

Abstract

The present invention discloses a method and system for monitoring battery shortage prevention in intelligent connected vehicles. The system includes an electric vehicle for acquiring battery status data in real time, determining whether the remaining power level is below a set threshold based on the battery status data, and if so, generating an alarm message based on the remaining power level and the current power status of the electric vehicle, and transmitting the alarm message to an Internet of Vehicles platform; and an Internet of Vehicles platform for acquiring a corresponding battery shortage prevention control strategy based on the current power status of the electric vehicle and the alarm message, and transmitting the strategy to the electric vehicle. The present invention is capable of monitoring and controlling whether an electric vehicle is suffering from battery shortage in various power statuses.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric vehicle battery management, and in particular relates to a system and method for preventing battery failure in intelligent network-connected vehicles. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] With the advancement of intelligent and connected vehicles, demands for increasingly rich user experience features are increasing. The number of onboard electronic control units (ECUs) and software logic strategies for vehicle network wake-up, sleep, and identification are also increasing, increasing the potential for battery drain. Existing battery drain prevention technologies primarily focus on the low battery status notification displayed by the driver through the instrument cluster after the vehicle enters the vehicle. When the vehicle is in the OFF state, there is a lack of systematic network monitoring mechanisms, remote battery charge status assessment, proactive user notifications, and timely charging measures, increasing the likelihood of battery drain. Furthermore, if abnormal control unit power consumption or a software bug occasionally causes the vehicle network to not sleep or be woken up unexpectedly, battery charge information is not recorded in the backend, resulting in a lack of information related to the problem. This increases the difficulty and time required to troubleshoot the issue, causing inconvenience to users and damaging the company's reputation. Summary of the Invention

[0004] To overcome the above-mentioned deficiencies in the prior art, the present invention provides a system and method for monitoring power shortage prevention in intelligent connected vehicles, which can monitor and control whether electric vehicles are experiencing power shortages under various power supply states.

[0005] To achieve the above objectives, one or more embodiments of the present invention provide the following technical solutions:

[0006] A battery-loss prevention monitoring system for intelligent connected vehicles, comprising:

[0007] An electric vehicle, configured to obtain battery status data in real time, determine whether the remaining power is below a set threshold based on the battery status data, and if so, generate an alarm message based on the remaining power and the current power status of the electric vehicle, and transmit the alarm message to the Internet of Vehicles platform;

[0008] The vehicle networking platform is used to obtain a corresponding power shortage prevention control strategy based on the current power status and alarm information of the electric vehicle and send it to the electric vehicle.

[0009] Furthermore, the power outage prevention control strategy includes:

[0010] If the current power mode of the electric vehicle is ACC mode or ON mode, sending a prompt message to the electric vehicle, the prompt message including an engine start prompt;

[0011] If the current vehicle power mode of the electric vehicle is OFF mode, prompt information is sent to the user terminal bound to the electric vehicle and the electric vehicle respectively, and the prompt information includes an engine start prompt.

[0012] Furthermore, the power outage prevention control strategy also includes:

[0013] If the current vehicle power mode of the electric vehicle is RUN mode, the power-deficit level is further determined based on the remaining battery power; based on the power-deficit level, combined with the preset power-deficit level and load function limitation relationship, the load function to be limited and the limitation strategy are obtained and sent to the electric vehicle.

[0014] Furthermore, each level of power loss is equipped with a trigger threshold and a recovery threshold for the remaining battery power. When the remaining battery power is lower than the trigger threshold of a certain level, the load function and restriction strategy to be restricted are obtained and sent to the electric vehicle, and a battery charging instruction is sent at the same time; when the remaining battery power is not lower than the recovery threshold of the level, a load recovery instruction is sent to the electric vehicle.

[0015] Furthermore, the method for obtaining the relationship between the preset power failure level and the load function limitation is as follows:

[0016] Summarize the comfort and entertainment load functions equipped on the vehicle;

[0017] A restriction strategy for each power-loss level is set for each load function to obtain a set power-loss level and load function restriction relationship; the restriction strategy is to reduce the power consumption setting ratio or shut down.

[0018] One or more embodiments provide a method for monitoring power shortage prevention in an intelligent connected vehicle, which is applied to a vehicle network platform connected to an electric vehicle;

[0019] When receiving an alarm message sent by an electric vehicle, obtaining a corresponding power-loss prevention control strategy according to the alarm message and sending it to the electric vehicle;

[0020] The alarm information is generated when the electric vehicle detects that the remaining power is lower than a set threshold, and includes the remaining power and the current power status of the electric vehicle.

[0021] Furthermore, the power outage prevention control strategy includes:

[0022] If the current power mode of the electric vehicle is ACC mode or ON mode, sending a prompt message to the electric vehicle, the prompt message including an engine start prompt;

[0023] If the current vehicle power mode of the electric vehicle is OFF mode, prompt information is sent to the user terminal bound to the electric vehicle and the electric vehicle respectively, and the prompt information includes an engine start prompt.

[0024] Furthermore, the power outage prevention control strategy also includes:

[0025] If the current vehicle power mode of the electric vehicle is RUN mode, the power-deficit level is further determined based on the remaining battery power; based on the power-deficit level, combined with the preset power-deficit level and load function limitation relationship, the load function to be limited and the limitation strategy are obtained and sent to the electric vehicle.

[0026] Furthermore, each level of power loss is equipped with a trigger threshold and a recovery threshold for the remaining battery power. When the remaining battery power is lower than the trigger threshold of a certain level, the load function and restriction strategy to be restricted are obtained and sent to the electric vehicle, and a battery charging instruction is sent at the same time; when the remaining battery power is not lower than the recovery threshold of the level, a load recovery instruction is sent to the electric vehicle.

[0027] Furthermore, the method for obtaining the relationship between the preset power failure level and the load function limitation is as follows:

[0028] Summarize the comfort and entertainment load functions equipped on the vehicle;

[0029] A restriction strategy for each power-loss level is set for each load function to obtain a set power-loss level and load function restriction relationship; the restriction strategy is to reduce the power consumption setting ratio or shut down.

[0030] One or more of the above technical solutions have the following beneficial effects:

[0031] Compared with traditional power-loss prevention technologies, this application considers more scenarios and can monitor and control whether electric vehicles are running low on power in various power states;

[0032] Moreover, when the electric vehicle is in a static state, the user is reminded to start the engine. After starting the engine, that is, entering a dynamic state, the vehicle is controlled through a load limiting strategy. That is, only one set of load limiting strategies needs to be formulated to achieve power loss control for the entire vehicle, which is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0034] Figure 1 This is a framework diagram of the intelligent connected vehicle power-loss prevention monitoring system according to the first embodiment of the present invention;

[0035] Figure 2 This is a flow chart of power-loss prevention control in the power-loss prevention monitoring system for intelligent connected vehicles according to the first embodiment of the present invention;

[0036] Figure 3 This is a flow chart of the power-loss prevention control in the static state of the vehicle in the first embodiment of the present invention;

[0037] Figure 4 This is a flow chart of load function limitation control in embodiment 1 of the present invention. DETAILED DESCRIPTION

[0038] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention belongs.

[0039] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0040] In the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0041] Example 1

[0042] This embodiment discloses a battery-low monitoring system for intelligent connected vehicles, comprising an IoV platform, an electric vehicle connected to the IoV platform, and a user terminal. Specifically, the IoV platform connects to the electric vehicle via an onboard T-box, and the user terminal can be a portable device such as a mobile phone, allowing users to receive real-time reminders from the IoV.

[0043] The electric vehicle is configured to include:

[0044] The battery sensor EBS is provided on the battery and is used to monitor battery status data, including current, voltage, SOC, and SOH information, and upload the data to the vehicle network platform; and determine whether the remaining battery power is below a certain threshold based on the battery status data. If so, an alarm message is generated based on the remaining power and the current power status of the electric vehicle and sent to the vehicle network platform;

[0045] The on-board T-BOX is used for data transmission between the battery sensor EBS and the vehicle networking platform.

[0046] The battery status query module is used to query relevant information when the user selects "Battery Status" on the instrument panel or central control screen. Based on this, the user can check the battery status as needed to assist in troubleshooting.

[0047] The vehicle networking platform is configured to include:

[0048] The vehicle management module is used to manage the vehicle information of electric vehicles connected to the network, and the vehicle information includes vehicle identification information, vehicle model, etc.

[0049] The user management module is used to manage the user information bound to the electric vehicles connected to the network. The user information includes user identity information, user terminal identification information, user contact information (such as mobile phone number), etc., which are not limited here.

[0050] The vehicle status management module is used to obtain and store the battery status data of the electric vehicle. When a query request is received from the electric vehicle, the module executes the query and feeds the result back to the electric vehicle.

[0051] The power-loss prevention control module is used to obtain the alarm information sent by the electric vehicle and the current battery status data and record them, obtain the corresponding power-loss prevention control strategy according to the current vehicle power mode of the electric vehicle, and send it to the electric vehicle.

[0052] The electric vehicle power supply mode includes ACC mode, ON mode, OFF mode and RUN mode. Among them, ACC mode means that some electrical appliances in the vehicle are powered on; ON mode means that the vehicle power supply is powered on, but the engine is not started; OFF mode means that the vehicle power supply is not powered on; RUN mode means that the vehicle is running. The control strategy includes:

[0053] (1) If the current power mode of the electric vehicle is ACC mode or ON mode, a prompt message is sent to the vehicle T-box, and the prompt message includes an engine start prompt. As an example, the prompt message may be "Battery power is low, please start the engine." After the vehicle T-box receives the prompt message, it can be displayed on the instrument panel or the central control screen.

[0054] Specifically, if the remaining battery level is lower than a first threshold, a prompt message is sent to the vehicle's T-box. If the remaining battery level is lower than a second threshold, prompt messages are continued to be sent to the vehicle's T-box, along with a load function restriction control strategy. The second threshold is lower than the first threshold. The load function restriction control strategy is the same as the load function restriction control strategy described below in the dynamic state.

[0055] (2) If the current power mode of the electric vehicle is OFF, a prompt message is sent to the user terminal bound to the electric vehicle and the onboard T-box, respectively. The prompt message includes an engine start prompt. As an example, the prompt message may be "Battery power is low, please start the engine". After receiving the prompt message, the onboard T-box may display it on the instrument panel or the central control screen; the information sent to the user terminal may be in the form of text or voice, etc., which is not limited here.

[0056] (3) If the current vehicle power mode of the electric vehicle is RUN mode, the power-deficit level is further determined based on the remaining battery power, and the currently working load function is obtained; based on the power-deficit level and the currently working load function, combined with the preset power-deficit level and load function restriction relationship, the load function control strategy, that is, the load function to be restricted and the restriction strategy, is obtained and sent to the electric vehicle.

[0057] Specifically, the power failure level is divided into four levels: Level 0 - no restrictions; Level 1 - slight restrictions; Level 2 - moderate restrictions; Level 3 - extreme restrictions, as follows:

[0058] If the remaining battery power is not lower than the first trigger threshold, the power failure level is level 0 and no load function restriction is required;

[0059] If the remaining battery power is lower than the first trigger threshold, the power loss level is level 1, and the load function and restriction strategy to be restricted are obtained and sent to the electric vehicle, and a battery charging instruction is sent at the same time; when the remaining battery power is not lower than the first recovery threshold, a load recovery instruction is sent to the electric vehicle;

[0060] If the remaining battery power is lower than the second trigger threshold, the power loss level is level 2, and the load function and restriction strategy to be restricted are obtained and sent to the electric vehicle, and a battery charging instruction is sent at the same time; when the remaining battery power is not lower than the second recovery threshold, a load recovery instruction is sent to the electric vehicle;

[0061] If the remaining battery power is lower than the third trigger threshold, the power loss level is level 3, and the load function and restriction strategy to be restricted are obtained and sent to the electric vehicle, and a battery charging instruction is sent at the same time; when the remaining battery power is not lower than the third recovery threshold, a load resumption instruction is sent to the electric vehicle;

[0062] The load functions that need to be restricted at each battery failure level are comfort and entertainment load functions, and the restriction strategy is to reduce power consumption by a set percentage or disable them. This embodiment summarizes the comfort and entertainment load functions equipped on the entire vehicle, and then sets a restriction strategy (reducing power consumption by a set percentage or disabling it) for each load function at each battery failure level, thereby obtaining a set relationship between the battery failure level and the load function restriction.

[0063] Since users have their own preferences for comfort and entertainment load functions, and the relationship between the set power-loss level and load function restriction is fixed and not differentiated according to user preferences, when limiting load functions, the controller may prioritize shutting down loads that users prefer to keep, affecting the user experience. Therefore, to improve the user experience, this embodiment also optimizes the relationship between the set power-loss level and load function restriction based on user usage data:

[0064] Obtain the comfort and entertainment load functions equipped on the vehicle and the corresponding historical working data;

[0065] Determine restriction priority based on user usage frequency and usage time: load functions with low usage frequency and short usage time have high restriction priority, i.e., they are restricted first; load functions with high usage frequency and long usage time have low restriction priority;

[0066] The relationship between the set power-loss level and load function restriction is optimized based on the restriction priority. The overall principle is: for load functions with low restriction priority, if their restriction strategy is at a low power-loss level (level 1 or level 2), that is, they are shut down, their power consumption is modified to remain unchanged or to reduce; for load functions with high restriction priority, if their restriction strategy is at a low level (level 1 or level 2), that is, they are shut down or their power consumption is reduced by a larger proportion.

[0067] Of course, an interface can also be provided for users to customize the relationship between the power-loss level and the load function limit. The system evaluates each power-loss level after modification to determine whether it can reach the limit level similar to the previous power-loss level, and guides the user to make the modification.

[0068] As an example, the first trigger threshold is 55%, and the first recovery threshold is 57.5%; the second trigger threshold is 50%, and the second recovery threshold is 52.5%; the third trigger threshold is 45%, and the third recovery threshold is 47.5%. The vehicle's comfort and entertainment load functions include a blower, heated seats, an amplifier, and a heated steering wheel. Level 1 power failure restriction strategies for these load functions are: limiting blower power consumption to 25%, limiting seat heating to low mode, limiting power consumption to 25%, and not limiting steering wheel heating; Level 2 power failure restriction strategies for these load functions are: limiting blower power consumption to 50%, turning off seat heating, limiting power consumption to 50%, and turning off steering wheel heating; Level 3 power failure restriction strategies for these load functions are: limiting blower power consumption to 75%, turning off seat heating, limiting power consumption to 75%, and turning off steering wheel heating.

[0069] Those skilled in the art will understand that the above control strategies (1) and (2) correspond to the static state of the electric vehicle, and control strategy (3) corresponds to the dynamic state of the electric vehicle. After starting the engine based on control strategies (1) and (2), the vehicle enters the dynamic state, and corresponding control is performed based on control strategy (3). It can be understood that when the vehicle is in the static state, a battery shortage occurs. By starting the engine to enter the dynamic state, control is performed based on the load limitation strategy in the dynamic state. That is, only one set of load limitation strategies needs to be formulated to achieve battery shortage control for the entire vehicle, which is convenient. In addition, an optimization function of the load limitation strategy is provided, so that the load limitation can be combined with the user's load preferences when limiting the load, thereby improving the user experience.

[0070] This embodiment targets different power modes (i.e., different usage states) of electric vehicles, and uses a battery sensor EBS provided on the electric vehicle to monitor the battery power in real time. When the battery power is too low, it actively wakes up the network and obtains control strategies from the vehicle network platform. On the one hand, it can timely control the vehicle accordingly to ensure its endurance. On the other hand, it can record data such as the vehicle status and power shortage situation of all electric vehicles connected to the network when the battery is low, which is helpful for subsequent analysis of the cause of the power shortage.

[0071] Example 2

[0072] Based on the system of the first embodiment, this embodiment discloses a method for monitoring power shortage prevention of an intelligent connected vehicle, which is applied to a vehicle network platform connected to an electric vehicle;

[0073] When receiving an alarm message sent by an electric vehicle, obtaining a corresponding power-loss prevention control strategy according to the alarm message and sending it to the electric vehicle;

[0074] The alarm information is generated when the electric vehicle detects that the remaining power is lower than a set threshold, and includes the remaining power and the current power status of the electric vehicle.

[0075] For details on the power outage prevention control strategy, please refer to the corresponding description of Example 1.

[0076] Although the above describes the specific embodiments of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without any creative work are still within the scope of protection of the present invention.

Claims

1. A smart connected vehicle power outage prevention monitoring system, characterized in that: include: An electric vehicle, configured to determine whether the remaining power is below a set threshold based on the battery status data, and if so, to generate an alarm message based on the remaining power and the current power status of the electric vehicle, and transmit the alarm message to the Internet of Vehicles platform; The vehicle networking platform is used to obtain a corresponding power shortage prevention control strategy based on the current power status and alarm information of the electric vehicle and send it to the electric vehicle; The power loss prevention control strategy includes: if the current power mode of the electric vehicle is ACC mode or ON mode, sending a prompt message to the electric vehicle, the prompt message including an engine start prompt; If the current vehicle power mode of the electric vehicle is OFF mode, a prompt message is sent to the user terminal bound to the electric vehicle and the electric vehicle respectively, wherein the prompt message includes an engine start prompt; If the current vehicle power mode of the electric vehicle is RUN mode, the power-deficit level is further determined based on the remaining battery power; based on the power-deficit level and in combination with a preset relationship between the power-deficit level and load function limitation, the load function to be limited and the limitation strategy are obtained and sent to the electric vehicle; The method for obtaining the preset relationship between the power-loss level and the load function restriction is as follows: summarizing the comfort and entertainment load functions equipped in the entire vehicle; setting a restriction strategy for each power-loss level for each load function to obtain the set power-loss level and load function restriction relationship; the restriction strategy is to reduce the power consumption setting ratio or turn it off.

2. The intelligent connected vehicle power failure prevention monitoring system according to claim 1, characterized in that: Each level of power loss is equipped with a trigger threshold and a recovery threshold for the remaining battery power. When the remaining battery power is lower than the trigger threshold of a certain level, the load function and restriction strategy to be restricted are obtained and sent to the electric vehicle, and a battery charging instruction is sent at the same time; when the remaining battery power is not lower than the recovery threshold of the level, a load recovery instruction is sent to the electric vehicle.

3. A method for monitoring power shortage prevention in intelligent connected vehicles, applied to the Internet of Vehicles platform, characterized in that: The Internet of Vehicles platform is connected to the electric vehicle; When receiving an alarm message sent by an electric vehicle, obtaining a corresponding power-loss prevention control strategy according to the alarm message and sending it to the electric vehicle; Wherein, the alarm information is generated when the electric vehicle detects that the remaining power is lower than a set threshold, including the remaining power and the current power status of the electric vehicle; The power loss prevention control strategy includes: if the current power mode of the electric vehicle is ACC mode or ON mode, sending a prompt message to the electric vehicle, the prompt message including an engine start prompt; If the current vehicle power mode of the electric vehicle is OFF mode, a prompt message is sent to the user terminal bound to the electric vehicle and the electric vehicle respectively, wherein the prompt message includes an engine start prompt; If the current vehicle power mode of the electric vehicle is RUN mode, the power-deficit level is further determined based on the remaining battery power; based on the power-deficit level and in combination with a preset relationship between the power-deficit level and load function limitation, the load function to be limited and the limitation strategy are obtained and sent to the electric vehicle; The method for obtaining the preset relationship between the power-loss level and the load function restriction is as follows: summarizing the comfort and entertainment load functions equipped in the entire vehicle; setting a restriction strategy for each power-loss level for each load function to obtain the set power-loss level and load function restriction relationship; the restriction strategy is to reduce the power consumption setting ratio or turn it off.

4. The method for monitoring power shortage prevention of intelligent connected vehicles according to claim 3, characterized in that: Each level of power loss is equipped with a trigger threshold and a recovery threshold for the remaining battery power. When the remaining battery power is lower than the trigger threshold of a certain level, the load function and restriction strategy to be restricted are obtained and sent to the electric vehicle, and a battery charging instruction is sent at the same time; when the remaining battery power is not lower than the recovery threshold of the level, a load recovery instruction is sent to the electric vehicle.

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