Automobile endurance management method and device for expressway section

Abstract

The invention discloses an automobile endurance management method and device for an expressway section, relates to the technical field of new energy electric automobiles, and mainly aims to improve the endurance of the electric automobile running on the expressway section and reduce the endurance anxiety of a user in the driving process. According to the main technical scheme, in a pure electric mode, when it is monitored that the electric quantity of a battery of the vehicle is lower than an electric quantity threshold value, the vehicle is controlled to be switched to a range extending mode from the pure electric mode, and the electric quantity threshold value is determined according to the distance between adjacent charging stations in a highway section where the vehicle is located currently; and in the range extending mode, when it is monitored that the oil quantity of an oil tank of the vehicle is lower than an oil quantity threshold value or the electric quantity of a battery is not lower than an electric quantity threshold value, the vehicle is controlled to be switched back to the pure electric mode from the range extending mode. The method and the device are used for endurance management of the vehicle running on the expressway section.

Description

Technical Field

[0001] The present application relates to the technical field of new energy electric vehicles, and in particular to a method and device for managing vehicle endurance on a highway. Background Art

[0002] With the increasing awareness of environmental protection and the transformation of energy structure, electric vehicles (EVs) have gradually become an important development direction of the automotive industry. Electric vehicles are favored by more and more consumers for their zero emissions, low noise and high efficiency. However, the range and charging convenience of electric vehicles are still the key factors restricting their large-scale popularization. Especially on highways, due to the long driving distance and uneven distribution of charging facilities, the range management and charging requirements of electric vehicles are particularly prominent.

[0003] At present, the range management of electric vehicles mainly relies on the vehicle's built-in battery management system (BMS) and the driver's experience and judgment. That is, when the battery power drops to a certain fixed threshold (such as 20%), the battery management system reminds the driver through the vehicle computer to switch to the extended range mode and find a charging station, and the driver decides whether to execute it through the vehicle computer operation. Although this method is simple and easy, it lacks flexibility and cannot be dynamically adjusted according to actual driving conditions. It is difficult to ensure that electric vehicles driving on highways always have a certain range, which increases the user's range anxiety during driving. Summary of the invention

[0004] In view of the above problems, the present application provides a method and device for managing the battery life of an electric vehicle on a highway, the main purpose of which is to improve the battery life of an electric vehicle on a highway and reduce the battery life anxiety of the user during driving.

[0005] In order to solve the above technical problems, this application proposes the following solutions:

[0006] In a first aspect, the present application provides a method for managing vehicle cruising range on a highway section, the method comprising:

[0007] In pure electric mode, when the battery power of the vehicle is detected to be lower than the power threshold, the vehicle is controlled to switch from the pure electric mode to the extended range mode. The power threshold is determined according to the distance between adjacent charging stations in the highway section where the vehicle is currently located.

[0008] In the extended-range mode, when it is monitored that the fuel level in the vehicle's fuel tank is lower than the fuel level threshold or the battery power is not lower than the power threshold, the vehicle is controlled to switch from the extended-range mode back to the pure electric mode.

[0009] In a second aspect, the present application provides a vehicle endurance management device for a highway section, the device comprising:

[0010] A first control unit is used to control the vehicle to switch from the pure electric mode to the extended range mode when it is detected that the battery power of the vehicle is lower than a power threshold in the pure electric mode, and the power threshold is determined according to the distance between adjacent charging stations in the highway section where the vehicle is currently located;

[0011] The second control unit is used to control the vehicle to switch from the extended-range mode back to the pure electric mode when it is monitored that the fuel level in the vehicle's tank is lower than the fuel level threshold or the battery level is not lower than the battery level threshold in the extended-range mode switched by the first control unit.

[0012] In order to achieve the above-mentioned purpose, according to the third aspect of the present application, a storage medium is provided, which includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the vehicle endurance management method for the highway section of the above-mentioned first aspect.

[0013] In order to achieve the above-mentioned purpose, according to the fourth aspect of the present application, a processor is provided, and the processor is used to run a program, wherein when the program is running, the vehicle endurance management method for the highway section mentioned in the first aspect is executed.

[0014] By means of the above technical scheme, the present application provides a method and device for managing the cruising range of a car on a highway. When it is necessary to manage the cruising range of a car on a highway, in pure electric mode, when it is monitored that the battery power of the vehicle is lower than the power threshold, the vehicle is controlled to switch from pure electric mode to extended-range mode. The power threshold is determined according to the distance between adjacent charging stations in the highway section where the vehicle is currently located. In extended-range mode, when it is monitored that the fuel level in the vehicle's fuel tank is lower than the fuel level threshold or the battery power is not lower than the power threshold, the vehicle is controlled to switch from extended-range mode back to pure electric mode. Through the technical solution provided in the present application, the power threshold for switching between pure electric mode and extended-range mode can be converted according to the distance between adjacent charging stations in the highway section where the vehicle is located, and the fuel level in the fuel tank can be further combined to decide whether to switch back to pure electric mode from extended-range mode, so that the vehicle can travel in extended-range mode when the fuel level is sufficient, or continue to travel in pure electric mode with a remaining power equal to the power threshold when the fuel level is insufficient, ensuring that the vehicle can safely reach the charging station in the highway line before the power is exhausted, avoiding the risks that may be caused by switching modes using fixed thresholds, making endurance management more flexible and reliable, improving the endurance and safety of electric vehicles on highway sections, and effectively reducing users' endurance anxiety during driving.

[0015] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0017] Figure 1 A flow chart of a method for managing vehicle cruising range on a highway provided by an embodiment of the present application is shown;

[0018] Figure 2 A flow chart of another method for managing the vehicle's cruising range on a highway provided by an embodiment of the present application is shown;

[0019] Figure 3 A block diagram showing a composition of a vehicle cruising range management device for a highway section provided by an embodiment of the present application;

[0020] Figure 4 A block diagram showing the composition of another vehicle cruising range management device for a highway section provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0021] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0022] At present, the range management of electric vehicles mainly relies on the vehicle's built-in battery management system (BMS) and the driver's experience and judgment. That is, when the battery power drops to a certain fixed threshold (such as 20%), the battery management system reminds the driver through the vehicle computer to switch to the extended range mode and find a charging station, and the driver decides whether to execute it through the vehicle computer operation. Although this method is simple and easy, it lacks flexibility and cannot be dynamically adjusted according to actual driving conditions, especially on highways with long driving distances and uneven distribution of charging facilities. It is difficult to ensure that electric vehicles driving on highways always have a certain range, which increases users' range anxiety during driving.

[0023] After research, the inventor found that a power threshold that dynamically follows the changes in the section can be set in combination with the distribution of charging facilities in the highway section where the vehicle is located, that is, the power threshold is calculated by the distance between adjacent charging stations. In pure electric mode, the actual battery power is compared with the power threshold to decide whether to switch to the extended-range mode, and a limit fuel threshold is set. After switching to the extended-range mode, the actual fuel tank fuel level is compared with the fuel level threshold and the actual battery power is compared with the power threshold to decide whether to switch back to the pure electric mode. In this way, it can ensure that the vehicle can safely reach the charging station in the highway line before the power is exhausted, avoiding the risks that may be caused by using a fixed threshold to switch modes, making the endurance management more flexible and reliable, improving the endurance and safety of electric vehicles on highway sections, and effectively reducing the endurance anxiety of users during driving.

[0024] Based on the above considerations, the embodiment of the present application provides a method for managing the battery life of an electric vehicle on a highway. The method can improve the battery life of an electric vehicle on a highway and reduce the battery life anxiety of the user during driving. The specific execution steps are as follows: Figure 1 As shown, including:

[0025] 101. In pure electric mode, when the battery power of the vehicle is detected to be lower than the power threshold, the vehicle is controlled to switch from pure electric mode to extended-range mode.

[0026] Among them, the power threshold is determined based on the distance between adjacent charging stations in the highway section where the vehicle is currently located.

[0027] In this step, the power threshold can be calculated and used based on the vehicle computer itself, or it can be calculated in advance or in real time based on the Internet of Vehicles through the cloud based on all highway sections in the area where the vehicle frequently travels, and fed back to the vehicle side for use after the receiving vehicle side sends a request for a certain highway section. This embodiment does not limit this.

[0028] Since the vehicle is traveling on a highway section, that is, any highway, the highway section where the vehicle is located can be determined according to the location of the vehicle, which can be implemented by using a vehicle-mounted GPS system and a map API. After determining the highway section, all the charging station information within a certain range (such as 300 kilometers) in front of the vehicle can be determined according to the map API, and the distance between each two adjacent charging stations, that is, the interval distance, is calculated respectively. The interval distance is used to characterize the actual mileage required by the vehicle between two adjacent charging stations, which can be determined specifically using the path planning function provided by the map API. After obtaining the distance between adjacent charging stations, the required power of the vehicle when traveling can be calculated for each distance. Assuming that the power consumption of the vehicle per 100 kilometers on the highway is 120kWh / 100km, the calculation formula is as follows: required power = (spacing 100) × 120. After obtaining the required power corresponding to each spacing, the maximum value of all spacings can be selected, or the average value of all spacings can be calculated as the final reference spacing, and the conversion calculation is performed based on the reference spacing to obtain the power threshold in percentage form.

[0029] It should be noted that in the process of calculating the power threshold, in order to ensure that the power threshold can safely reach the charging station in front of any two adjacent charging stations in pure electric mode, a preset safety margin can be added. The safety margin can be 10% or 15% of the required power mentioned above, and can be determined in combination with but not limited to road congestion, driver habits, weather conditions, etc.

[0030] Normally, since the main driving mode of an extended-range electric vehicle is pure electric mode when the battery is fully charged, and it is accompanied by consumption, the driver will switch to the extended-range mode through the vehicle computer control only when the battery is insufficient. Therefore, in the pure electric mode, the battery power can be compared with the power threshold obtained above in real time. When it is lower than the power threshold, it means that the vehicle is insufficient at this time. In order to avoid excessive discharge of the battery and affect the service life and to maintain a certain endurance under special circumstances, a control system can be generated to send instructions to start the range extender and automatically put the vehicle into the extended-range mode. At the same time, a corresponding charging reminder can also be triggered to remind the driver that it is necessary to charge in time. The charging reminder can be triggered in real time or when the vehicle approaches a charging station. This embodiment does not limit this.

[0031] 102. When it is monitored that the fuel level in the vehicle's fuel tank is lower than the fuel level threshold or the battery level is not lower than the battery level threshold, the vehicle is controlled to switch from the extended-range mode back to the pure electric mode.

[0032] Since step 101 needs to switch to the extended-range mode when the battery power is lower than the power threshold, if the fuel tank oil level is as low as its limit, the extended-range mode cannot guarantee the normal driving of the vehicle. Therefore, in this step, a fuel level threshold (such as 5L) can be set in advance, and when the real-time monitored fuel tank oil level is lower than the fuel level threshold, the control system sends a command to turn off the range extender, and automatically switches the vehicle from the extended-range mode back to the pure electric mode. At the same time, the corresponding refueling reminder can also be triggered to remind the driver to refuel in time. The refueling reminder can be triggered in real time or when the vehicle approaches a gas station, which is not limited in this embodiment. In addition, since the vehicle will also charge the battery during this period, that is, the battery power may be higher than or equal to the power threshold, therefore, at this time, the control system can also send a command to turn off the range extender, and automatically switch the vehicle from the extended-range mode back to the pure electric mode.

[0033] It should be noted that in order to prevent the vehicle from switching between extended-range mode and pure electric mode too frequently, a charge gradient difference can be set in advance. When the battery charge continues to increase due to charging and the difference between the charge thresholds is higher than the charge gradient difference, the switching operation is performed.

[0034] Based on the above Figure 1 It can be seen from the implementation method that the present application provides a method for managing the cruising range of a car on a highway. When it is necessary to manage the cruising range of a car on a highway, in pure electric mode, when it is monitored that the battery power of the vehicle is lower than the power threshold, the vehicle is controlled to switch from pure electric mode to extended-range mode. The power threshold is determined according to the distance between adjacent charging stations in the highway section where the vehicle is currently located. In extended-range mode, when it is monitored that the oil level in the vehicle's fuel tank is lower than the oil level threshold or the battery power is not lower than the power threshold, the vehicle is controlled to switch from extended-range mode back to pure electric mode. Through the technical solution provided in the present application, the power threshold for switching between pure electric mode and extended-range mode can be converted according to the distance between adjacent charging stations in the highway section where the vehicle is located, and the fuel level in the fuel tank can be further combined to decide whether to switch back to pure electric mode from extended-range mode, so that the vehicle can travel in extended-range mode when the fuel level is sufficient, or continue to travel in pure electric mode with a remaining power equal to the power threshold when the fuel level is insufficient, ensuring that the vehicle can safely reach the charging station in the highway line before the power is exhausted, avoiding the risks that may be caused by switching modes using fixed thresholds, making endurance management more flexible and reliable, improving the endurance and safety of electric vehicles on highway sections, and effectively reducing users' endurance anxiety during driving.

[0035] Further, the preferred embodiment of the present application is in the above Figure 1 Based on this, a detailed description of the process of vehicle endurance management on highway sections is given. The specific steps are as follows: Figure 2 As shown, including:

[0036] 201. Obtain the charging station information corresponding to the highway section where the vehicle is currently located.

[0037] In this step, the vehicle's current location information, including longitude and latitude coordinates, can be obtained using the vehicle's onboard GPS system, and the current highway section information of the vehicle can be obtained by calling a map API (such as Google Maps API, Amap API, etc.).

[0038] Call the map API to obtain all charging station information within a certain range (such as 300 kilometers) in front of the vehicle on the highway section, including the name and location (latitude and longitude coordinates) of the charging station, and sort the obtained charging station information by distance to facilitate the execution of step 202.

[0039] 202. Calculate the interval distance between two adjacent charging stations based on the location information in the charging station information.

[0040] In this step, since the charging station information includes location information, the distance between each two adjacent charging stations, that is, the actual mileage required for the vehicle to travel between two adjacent charging stations, can be calculated based on the location information and combined with the path planning function of the map API to facilitate the execution of step 203.

[0041] 203. Determine a power threshold according to the interval distance and the unit power consumption of the vehicle.

[0042] It should be noted that the specific implementation process of determining the power threshold based on the interval distance and the unit power consumption of the vehicle is: based on the interval distance and the unit power consumption, the required power for each interval distance is calculated respectively; based on the maximum value of the required power for the interval and the preset safety margin, a conversion calculation is performed to obtain the power threshold.

[0043] In this step, since the application scenario targeted by this embodiment is a highway section, and the highway section usually has a clear speed limit value, it is usually divided into several different levels, which may vary depending on the vehicle model, region, road type and special conditions (such as weather, construction, etc.), and the maximum speed limit is usually 120 kilometers per hour. Therefore, combined with the basic common sense that the vehicle speed is proportional to the power consumption, the power consumption corresponding to the above-mentioned maximum speed limit can be used to convert the unit power consumption, such as the power consumption per hundred kilometers. After determining the unit power consumption, based on the interval distance obtained in the previous steps, the required power for each interval distance, that is, the required power for the interval, can be calculated. Exemplarily, assuming that the power consumption of a vehicle per hundred kilometers on the highway is 120kWh / 100km, the specific formula is: required power = (interval distance / 100)×120.

[0044] Since the maximum value in the interval distance corresponds to the longest required mileage, the corresponding required power is also the largest. Therefore, the maximum value of all interval distances is selected as the final reference distance, so that the power threshold can cover all interval distances, that is, it can safely reach the charging station ahead within all interval distances. In addition, a pre-set safety margin can be added to further ensure the vehicle's endurance in the final segment of pure electric mode on the highway. The safety margin can be determined based on road congestion, driver habits, and weather conditions. Among them, road congestion will cause the vehicle to start and stop frequently and increase power consumption. The driver's driving habits (such as aggressive driving, frequent acceleration and sudden braking) or the use of auxiliary systems (such as air conditioning, audio, etc.) will increase power consumption. Bad weather (such as rain, snow, high temperature, etc.) will also affect power consumption.

[0045] Specifically, the road congestion can be estimated through real-time traffic data, the driver's habits can be monitored through the vehicle's built-in sensor data, and the real-time weather conditions can be obtained through the weather API. The safety margin can be dynamically adjusted based on at least one of the road congestion, driver's habits, and weather conditions as a determining factor. For example, the road congestion is divided into two states: congested and unobstructed, the driver's habits are divided into three states: aggressive, normal, and conservative, and the weather conditions are divided into two states: bad and suitable. Different safety margins are set according to different states. Specifically, a corresponding relationship table can be maintained, and the table can be used for rapid determination. When one of the road congestion, driver's habits, and weather conditions is used as a determining factor, the corresponding safety margin can be directly determined according to the state of the determining factor. When multiple road congestion, driver's habits, and weather conditions are used as determining factors, the safety margins corresponding to the states of different determining factors can be taken as the maximum value or superimposed according to the weight to obtain a new safety margin.

[0046] After obtaining the safety margin, such as 15% of the required power, the final power threshold can be calculated. The formula is as follows: Power threshold = power required for reference interval × (1 + safety margin). By setting this safety margin, other entertainment or comfort-related power consumption in addition to driving power consumption can be included, such as playing music, turning on the air conditioner, etc., further ensuring the vehicle's endurance in the last section of the highway in pure electric mode.

[0047] 204. In pure electric mode, when it is detected that the battery power of the vehicle is lower than the power threshold, the vehicle is controlled to switch from pure electric mode to extended range mode.

[0048] This step is combined with the description of step 101 in the above method, and the same contents will not be repeated here.

[0049] 205. Determine a target charging station corresponding to the vehicle within the expressway section according to a first preset rule.

[0050] Among them, the first preset rule is specifically a rule for selecting a target charging station within the highway section according to the current cruising state of the vehicle.

[0051] In this step, since the vehicle has switched to the extended-range mode at this time, and the endurance of the extended-range mode is positively correlated with the amount of fuel in the tank. Therefore, an effective range can be calculated in combination with the amount of fuel in the tank, that is, the mileage that the vehicle can safely reach in the extended-range mode. Specifically, it can be 80% or 85% of the calibrated range corresponding to the amount of fuel in the tank, and the specific proportion can be adjusted according to the actual situation. It should be noted that due to the uneven distribution of charging stations in the highway section, if the fuel tank has sufficient fuel, its corresponding range may span multiple charging stations in front, and if the fuel tank has insufficient fuel, its corresponding range may not even reach the most advanced charging station in front. Therefore, any charging station within its effective range, or the charging station closest to the vehicle can be used as the target charging station.

[0052] Based on the above description, the specific execution process of determining the target charging station corresponding to the vehicle in the highway section according to the first preset rule is: determining the first effective cruising range of the vehicle in the highway section according to the cruising range corresponding to the fuel level in the fuel tank; taking any charging station within the first effective cruising range, and / or the charging station closest to the vehicle as the target charging station.

[0053] In this step, the first effective cruising range is calculated based on the calibrated cruising range corresponding to the amount of oil in the tank according to a preset ratio, and the calibrated cruising range is calculated based on the vehicle's fuel consumption rate and the current amount of oil in the tank. The first effective cruising range is within the calibrated cruising range, so that all charging stations within the first effective cruising range can be safely reached in the current extended range mode. When there is at least one charging station within the first effective cruising range, the nearest charging station can be selected as the target charging station according to the driver's selection through the vehicle computer or by default, and the charging station with the largest number of charging piles in idle state can also be selected according to the use status of each charging pile in each charging station. The charging station is the target charging station. If there is no charging station within the first effective cruising range, it means that it is impossible to safely reach any charging station for charging when continuing to drive in the current extended range mode, and it is necessary to automatically switch back to the pure electric mode midway. Therefore, at this time, the charging station closest to the vehicle can be defaulted as the target charging station, so that the vehicle can be charged in time within the effective cruising range of the last section to improve the cruising range.

[0054] 206. When the distance between the vehicle and the target charging station is less than a preset first distance threshold, a charging reminder instruction for the vehicle is triggered.

[0055] In this step, since the location of the target charging station has been determined, and as the vehicle travels, the distance between the vehicle and the target charging station is constantly shortening, the path planning function of the map API can be used to calculate the distance between the vehicle and the target charging station in real time. In order to ensure the effectiveness of the charging reminder and avoid premature reminders that cause the driver to forget to charge, a first distance threshold can be set in advance, such as 1 kilometer. If the distance between the vehicle and the target charging station is less than the first distance threshold, the charging reminder instruction is triggered. The charging reminder instruction can specifically send a charging reminder to the driver through the display screen of the vehicle computer or a mobile phone APP.

[0056] 207. In the extended-range mode, when it is monitored that the fuel level in the vehicle's fuel tank is lower than the fuel level threshold or the battery level is not lower than the battery level threshold, the vehicle is controlled to switch from the extended-range mode back to the pure electric mode.

[0057] This step is combined with the description of step 102 in the above method, and the same contents are not repeated here.

[0058] 208. Determine a target gas station corresponding to the vehicle within the highway section according to a second preset rule.

[0059] Among them, the second preset rule is specifically a rule for selecting a target gas station within the highway section according to the current cruising state of the vehicle.

[0060] In this step, since the vehicle has switched back to the pure electric mode at this time, if the switch is caused by insufficient fuel in the tank, then the pure electric mode at this time is actually driving with a battery power equal to the power threshold, and if the switch is caused by an increase in the battery power, then the pure electric mode at this time is actually driving with a battery power higher than the power threshold. That is, the battery power at this time may be safe enough to reach the next charging station for charging, but it may not be safe enough to reach any gas station for refueling. Therefore, another effective range can be calculated in combination with the battery power, that is, the mileage that the vehicle can safely reach in pure electric mode. Specifically, it can be 80% or 85% of the calibrated range corresponding to the battery power, and the specific proportion can be adjusted according to the actual situation. It should be noted that since the gas stations in the highway section are not evenly distributed, if the battery power is sufficient, the corresponding range may span multiple gas stations in front, and if the battery power is insufficient, the corresponding range may not even reach the gas station in front. Therefore, any gas station within its effective range, or the gas station closest to the vehicle, can be used as the target gas station.

[0061] Based on the above description, the specific execution process of determining the target gas station corresponding to the vehicle within the highway section according to the second preset rule is: determine the second effective cruising range of the vehicle within the highway section according to the cruising range corresponding to the battery power; select any gas station within the second effective cruising range, and / or the gas station closest to the vehicle as the target gas station.

[0062] In this step, the second effective cruising range is calculated based on the calibrated cruising range corresponding to the battery power according to a preset ratio, and the calibrated cruising range is calculated based on the vehicle's power consumption rate and the current battery power. The second effective cruising range is also within the calibrated cruising range, so that all gas stations within the second effective cruising range can be safely reached in the current pure electric mode. When there is at least one gas station within the second effective cruising range, the driver can select the nearest gas station through the vehicle computer or select it by default as the target gas station. If there is no gas station within the second effective cruising range, it means that it is impossible to safely reach any gas station for refueling when continuing to drive in the current pure electric mode. Therefore, at this time, the gas station closest to the vehicle can be used as the target gas station by default, so that the vehicle can refuel in time within the effective cruising range to improve the cruising range.

[0063] 209. When the distance between the vehicle and the target gas station is less than a preset second distance threshold, a refueling reminder instruction of the vehicle is triggered.

[0064] In this step, since the location of the target gas station has been determined, and as the vehicle travels, the distance between the vehicle and the target gas station is constantly shortening, the path planning function of the map API can be used to calculate the distance between the vehicle and the target gas station in real time. In order to ensure the effectiveness of the refueling reminder and avoid premature reminders that cause the driver to forget to charge, a second distance threshold can be set in advance, such as 1 kilometer. If the distance between the vehicle and the target gas station is less than the second distance threshold, the refueling reminder instruction is triggered. The refueling reminder instruction can specifically send a refueling reminder to the driver through the display screen of the vehicle computer or a mobile phone APP.

[0065] Furthermore, in combination with step 206 and step 209, when a charging reminder is given, the reminder can be upgraded in combination with the actual amount of oil in the tank to trigger a more serious low-power alarm. Similarly, when a refueling reminder is given, the reminder can be upgraded in combination with the actual battery power to trigger a more serious low-fuel alarm, such as a continuous alarm tone, a continuous flashing display screen of the vehicle computer, etc., to remind the driver of the necessity of charging.

[0066] Furthermore, as a response to the above Figure 1-2The implementation of the method embodiment shown in the figure, the embodiment of the present application provides a vehicle range management device for a highway section, which is used to improve the range of electric vehicles on highway sections and reduce the range anxiety of users during driving. The embodiment of the device corresponds to the aforementioned method embodiment. For ease of reading, this embodiment will no longer repeat the details of the aforementioned method embodiment one by one, but it should be clear that the device in this embodiment can correspond to all the contents of the aforementioned method embodiment. Specifically, Figure 3 As shown, the device comprises:

[0067] A first control unit 31 is used to control the vehicle to switch from the pure electric mode to the extended range mode when it is detected that the battery power of the vehicle is lower than a power threshold in the pure electric mode, and the power threshold is determined according to the distance between adjacent charging stations in the highway section where the vehicle is currently located;

[0068] The second control unit 32 is used to control the vehicle to switch from the extended-range mode back to the pure electric mode when it is monitored that the fuel level in the vehicle's tank is lower than the fuel level threshold or the battery power is not lower than the power threshold in the extended-range mode switched by the first control unit 31.

[0069] Further, such as Figure 4 As shown, the device also includes:

[0070] An acquisition unit 33 is used to acquire the charging station information corresponding to the highway section where the vehicle is currently located before the first control unit 31;

[0071] A calculation unit 34, configured to calculate a distance between two adjacent charging stations based on the location information in the charging station information obtained by the acquisition unit 33;

[0072] The determination unit 35 is used to determine the power threshold according to the interval distance obtained by the calculation unit 34 and the unit power consumption of the vehicle.

[0073] Further, such as Figure 4 As shown, the determining unit 35 includes:

[0074] A first calculation module 351 is used to calculate the power required for each interval corresponding to the interval distance based on the interval distance and the unit power consumption;

[0075] The second calculation module 352 is used to perform conversion calculation based on the maximum value of the required power of the interval obtained by the first calculation module 351 and a preset safety margin to obtain the power threshold.

[0076] Further, such as Figure 4 As shown, the device also includes:

[0077] A first processing unit 36, configured to determine a target charging station corresponding to the vehicle in the highway section according to a first preset rule after the first control unit 31;

[0078] The first trigger unit 37 is used to trigger a charging reminder instruction for the vehicle when the distance between the vehicle and the target charging station obtained by the first processing unit 36 ​​is less than a preset first distance threshold.

[0079] Further, such as Figure 4 As shown, the first processing unit 36 ​​includes:

[0080] A first determining module 361, configured to determine a first effective cruising range of the vehicle within the expressway section according to the cruising range corresponding to the fuel level in the fuel tank;

[0081] The second processing module 362 is used to process any charging station within the first effective range obtained by the first determining module 361.

[0082] and / or,

[0083] The charging station closest to the vehicle is used as the target charging station.

[0084] Further, such as Figure 4 As shown, the device also includes:

[0085] A second processing unit 38, configured to determine a target gas station corresponding to the vehicle in the highway section according to a second preset rule after the second control unit 32;

[0086] The second trigger unit 39 is used to trigger a refueling reminder instruction for the vehicle when the distance between the vehicle and the target gas station obtained by the second processing unit 38 is less than a preset second distance threshold.

[0087] Further, such as Figure 4 As shown, the second processing unit 38 includes:

[0088] A second determination module 381 is used to determine a second effective cruising range of the vehicle within the highway section according to the cruising range corresponding to the battery power;

[0089] The second processing module 382 is used to process any gas station within the second effective cruising range obtained by the second determining module 381.

[0090] and / or,

[0091] The gas station closest to the vehicle is used as the target gas station.

[0092] Furthermore, an embodiment of the present application further provides a storage medium, wherein the storage medium is used to store a computer program, wherein when the computer program is running, the device where the storage medium is located is controlled to execute the above Figure 1-2 The vehicle endurance management method for the highway section described in .

[0093] Furthermore, the embodiment of the present application also provides a processor, the processor is used to run a program, wherein the program executes the above Figure 1-2 The vehicle endurance management method for the highway section described in .

[0094] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0095] It is understandable that the related features in the above methods and devices can be referenced to each other. In addition, the "first", "second" and the like in the above embodiments are used to distinguish the embodiments, but do not represent the advantages and disadvantages of the embodiments.

[0096] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0097] The algorithm and display provided herein are not inherently related to any particular computer, virtual system or other device. Various general purpose systems can also be used together with the teachings based on this. According to the above description, it is obvious that the structure required for constructing such systems. In addition, the application is not directed to any specific programming language either. It should be understood that various programming languages ​​can be utilized to realize the content of the application described herein, and the description of the specific language above is for the purpose of disclosing the best mode of implementation of the application.

[0098] In addition, the memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0099] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0100] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0101] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0102] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0103] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0104] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0105] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include transitory media such as modulated data signals and carrier waves.

[0106] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0107] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0108] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A method for managing vehicle cruising range on a highway section, characterized in that: The method comprises: In pure electric mode, when the battery power of the vehicle is detected to be lower than the power threshold, the vehicle is controlled to switch from the pure electric mode to the extended range mode. The power threshold is determined according to the distance between adjacent charging stations in the highway section where the vehicle is currently located. In the extended-range mode, when it is monitored that the fuel level in the vehicle's fuel tank is lower than the fuel level threshold or the battery power is not lower than the power threshold, the vehicle is controlled to switch from the extended-range mode back to the pure electric mode.

2. The method according to claim 1, characterized in that When it is monitored that the battery power of the vehicle is lower than the power threshold, before controlling the vehicle to switch from the pure electric mode to the extended range mode, the method further includes: Obtaining the charging station information corresponding to the highway section where the vehicle is currently located; Calculate the interval distance between two adjacent charging stations based on the location information in the charging station information; The power threshold is determined according to the interval distance and the unit power consumption of the vehicle.

3. The method according to claim 2, characterized in that Determining the power threshold according to the interval distance and the unit power consumption of the vehicle includes: Calculate the power required for each interval corresponding to the interval distance based on the interval distance and the unit power consumption; The power threshold is obtained by performing conversion calculation based on the maximum value of the power required for the interval and a preset safety margin.

4. The method according to any one of claims 1 to 3, characterized in that After controlling the vehicle to switch from the pure electric mode to the extended range mode, the method further includes: Determine a target charging station corresponding to the vehicle within the expressway section according to a first preset rule; When the distance between the vehicle and the target charging station is less than a preset first distance threshold, a charging reminder instruction for the vehicle is triggered.

5. The method according to claim 4, characterized in that Determining a target charging station corresponding to the vehicle within the expressway section according to a first preset rule includes: Determining a first effective cruising range of the vehicle within the highway section according to the cruising range corresponding to the fuel level in the fuel tank; Any charging station within the first effective range, and / or, The charging station closest to the vehicle is used as the target charging station.

6. The method according to any one of claims 1 to 3, characterized in that After controlling the vehicle to switch from the extended-range mode back to the pure electric mode, the method further includes: Determine a target gas station corresponding to the vehicle within the expressway section according to a second preset rule; When the distance between the vehicle and the target gas station is less than a preset second distance threshold, a refueling reminder instruction for the vehicle is triggered.

7. The method according to claim 6, characterized in that Determining a target gas station corresponding to the vehicle in the highway section according to a second preset rule includes: Determining a second effective cruising range of the vehicle within the highway section according to the cruising range corresponding to the battery power; Any gas station within the second effective range, and / or, The gas station closest to the vehicle is used as the target gas station.

8. A vehicle endurance management device for a highway section, characterized in that: The device comprises: A first control unit is used to control the vehicle to switch from the pure electric mode to the extended range mode when it is detected that the battery power of the vehicle is lower than a power threshold in the pure electric mode, and the power threshold is determined according to the distance between adjacent charging stations in the highway section where the vehicle is currently located; The second control unit is used to control the vehicle to switch from the extended-range mode back to the pure electric mode when it is monitored that the fuel level in the vehicle's fuel tank is lower than the fuel level threshold or the battery power is not lower than the power threshold in the extended-range mode switched by the first control unit.

9. A storage medium, characterized in that: The storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the vehicle endurance management method for a highway section as described in any one of claims 1 to 7.

10. A processor, characterized in that: The processor is used to run a program, wherein the program, when running, executes the vehicle endurance management method for a highway section as described in any one of claims 1 to claim 7.

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