An intelligent driving range anxiety alleviation system and alleviation method

Abstract

The present application discloses a system and method for alleviating range anxiety in intelligent driving, which relates to the technical field of electric vehicles and includes: an SOC calculation module; an air-conditioning energy consumption calculation module; a map engine calculation module divides the optimal driving route into multiple sections, and obtains the maximum speed limit and the minimum speed limit of each section; a range anxiety calculation module is used to calculate the maximum energy-consuming speed and the minimum energy-saving speed between the maximum speed limit and the minimum speed limit of the section when setting the driving destination, and respectively calculate the budgeted normal total energy consumption and the budgeted energy-saving total energy consumption; compare the available battery power of the vehicle with the budgeted normal total energy consumption and the budgeted energy-saving total energy consumption respectively, and display the comparison results on the dashboard display screen. The range anxiety alleviation system and method of the present application can predict whether the battery power is sufficient to reach the destination under normal driving or energy-saving driving when setting the driving destination, and alleviates the driver's range anxiety from the root cause.

Description

Technical Field

[0001] The present application relates to the technical field of electric vehicles, and specifically relates to an intelligent driving range anxiety alleviation system and an alleviation method thereof. Background Art

[0002] At present, electric vehicles have developed rapidly in recent years, but the market scale occupied by pure electric vehicles is still small. The limited driving range and low charging pile coverage rate have led to people's range anxiety about pure electric vehicles. Range anxiety restricts consumers' willingness to purchase pure electric vehicles and also restricts the usage willingness of pure electric vehicle owners. Generally speaking, the problem of range anxiety has become one of the main obstacles to the large-scale development of electric vehicles.

[0003] In order to alleviate range anxiety, the currently common methods are as follows. The first method is to make the energy storage of the vehicle battery pack more efficient; the second method is to expand the charging infrastructure and increase the output power to provide targeted charging solutions for homes, workplaces, convenience stores, and highway rest stops; the third method is to give early warnings to the vehicle during long-distance high-speed driving.

[0004] Specifically, for the third method, during the process of long-distance driving on the highway, a mileage threshold is set in advance. When the electric vehicle is driving on the highway, calculate the current remaining driving range of the electric vehicle; when the current remaining driving range is less than the mileage threshold, obtain the actual distance between the current position of the electric vehicle and the charging station in the next service area, and guide the vehicle to drive to the next service area for charging.

[0005] However, the third method has a narrow application range and is only applicable to long-distance highways. When it is found that the power is low during the journey, it gives a prompt to the driver, and this method still inevitably causes range anxiety for the driver. Summary of the Invention

[0006] Aiming at the defects existing in the prior art, the purpose of the present application is to provide an intelligent driving range anxiety alleviation system and an alleviation method thereof, which can predict whether the battery power can meet the normal driving or energy-saving driving to reach the destination when setting the driving destination, and alleviate the driver's range anxiety from the root cause.

[0007] To achieve the above purpose, the technical solution adopted is: An intelligent driving range anxiety alleviation system includes: an SOC calculation module for obtaining the available power of the vehicle;

[0008] An air-conditioning energy consumption calculation module for obtaining the air-conditioning energy consumption power;

[0009] A map engine calculation module, configured to generate an optimal driving route based on current location information and destination information, divide the optimal driving route into multiple sections, and obtain the maximum speed limit and minimum speed limit of each section;

[0010] A range anxiety calculation module, which is respectively connected to the SOC calculation module, the air-conditioning energy consumption calculation module and the map engine calculation module; the range anxiety calculation module is configured to, for each section when setting a driving destination, calculate the maximum energy-consuming speed and the minimum energy-saving speed between the maximum speed limit and the minimum speed limit of the section according to the mileage of the section, the set air-conditioning energy consumption power, and the vehicle speed-vehicle power conversion table of the corresponding vehicle model, and calculate the budgeted normal total energy consumption corresponding to the maximum energy-consuming speed and the budgeted energy-saving total energy consumption corresponding to the minimum energy-saving speed respectively; compare the available vehicle power with the budgeted normal total energy consumption and the budgeted energy-saving total energy consumption respectively, and display the comparison results on the dashboard display screen.

[0011] Based on the above technical solution, when the available vehicle power is greater than or equal to the budgeted normal total energy consumption, the range anxiety calculation module controls the dashboard display screen to display that the normal power is sufficient; otherwise, the range anxiety calculation module controls the dashboard display screen to display that the normal power is insufficient; when the dashboard display screen displays that the normal power is insufficient and the available vehicle power is greater than or equal to the budgeted energy-saving total energy consumption, the range anxiety calculation module controls the dashboard display screen to display that the energy-saving power is sufficient; otherwise, the range anxiety calculation module controls the dashboard display screen to display that the energy-saving power is insufficient.

[0012] Based on the above technical solution, the range anxiety mitigation system further includes a state management module for switching between the normal driving mode and the energy-saving driving mode, and the state management module is connected to the range anxiety calculation module; when the available vehicle power is less than the budgeted normal total energy consumption and greater than or equal to the budgeted energy-saving total energy consumption, the state management module can be used to control the vehicle to switch from the intelligent normal driving mode to the intelligent energy-saving driving mode; when the available vehicle power is less than the budgeted normal total energy consumption, the range anxiety calculation module obtains all the charging station addresses within 1 km along the route from the current location to the destination through the map engine calculation module, and prompts through a list on the dashboard display screen.

[0013] Based on the above technical solution, the range anxiety mitigation system further includes a vehicle networking module for realizing vehicle-end and cloud communication, and the vehicle networking module is connected to the range anxiety calculation module; the vehicle networking module uploads the vehicle model number to the cloud and downloads the vehicle speed-vehicle power conversion table of the same type of vehicle from the cloud;

[0014] The range anxiety calculation module calls the vehicle speed-vehicle power conversion table, and calculates the maximum energy-consuming speed and the minimum energy-saving speed between the maximum speed limit and the minimum speed limit of the section in combination with the mileage of the section and the set air-conditioning energy consumption power.

[0015] Based on the above technical solution, the mileage anxiety mitigation system further includes a speed control module, which is connected to the mileage anxiety calculation module; the speed control module is used to be responsible for executing the target vehicle speeds of each section in the normal driving mode and the energy-saving driving mode during actual driving.

[0016] Based on the above technical solution, the mileage anxiety mitigation system further includes two red and green indicator lights arranged side by side on the instrument panel display screen; when the first indicator light is green, it means the normal power is sufficient; when the first indicator light is red, it means the normal power is insufficient; when the second indicator light is green, it means the energy-saving power is sufficient; when the second indicator light is red, it means the energy-saving power is insufficient.

[0017] This application also discloses a mitigation method based on the above mileage anxiety mitigation system, including the following steps:

[0018] S1: The mileage anxiety calculation module obtains the mileage of each section from the current location to the destination, as well as the maximum speed limit and the minimum speed limit of each section, from the map engine calculation module;

[0019] S2: The mileage anxiety calculation module obtains the available vehicle power from the SOC calculation module, obtains the set air-conditioning energy consumption power from the air-conditioning energy consumption calculation module, obtains the vehicle speed-vehicle-mounted power comparison table of the corresponding vehicle model from the cloud, and combines the mileage of each section between the maximum speed limit and the minimum speed limit of each section, and calculates the corresponding maximum energy-consuming vehicle speed and the minimum energy-saving vehicle speed through the vehicle-mounted energy consumption and the air-conditioning energy consumption, and respectively calculates the budgeted normal total energy consumption corresponding to the maximum energy-consuming vehicle speed and the budgeted energy-saving total energy consumption corresponding to the minimum energy-saving vehicle speed;

[0020] S3: Compare the available vehicle power with the budgeted normal total energy consumption and the budgeted energy-saving total energy consumption respectively, and display the comparison results on the instrument panel display screen.

[0021] Based on the above technical solution, in step S3:

[0022] When the available vehicle power is greater than or equal to the budgeted normal total energy consumption, the mileage anxiety calculation module controls the instrument panel display screen to display that the normal power is sufficient; otherwise, the mileage anxiety calculation module controls the instrument panel display screen to display that the normal power is insufficient;

[0023] When the instrument panel display screen shows that the normal power is insufficient and the available vehicle power is greater than or equal to the budgeted energy-saving total energy consumption, the mileage anxiety calculation module controls the instrument panel display screen to display that the energy-saving power is sufficient; otherwise, the mileage anxiety calculation module controls the instrument panel display screen to display that the energy-saving power is insufficient.

[0024] Based on the above technical solution, the range anxiety mitigation system further includes a status management module for switching between the normal driving mode and the energy-saving driving mode, and the status management module is connected to the range anxiety calculation module;

[0025] When the available vehicle power is less than the budgeted normal total energy consumption and greater than or equal to the budgeted energy-saving total energy consumption, the status management module can be used to control the vehicle to switch from the intelligent normal driving mode to the intelligent energy-saving driving mode; when the available vehicle power is less than the budgeted normal total energy consumption, the range anxiety calculation module obtains all the charging station addresses within 1 km along the route from the current location to the destination through the map engine calculation module and prompts them through the dashboard display list.

[0026] Based on the above technical solution, the range anxiety mitigation system further includes a vehicle networking module for realizing vehicle-end and cloud communication, and the vehicle networking module is connected to the range anxiety calculation module;

[0027] In step S2, the vehicle networking module uploads the vehicle model number to the cloud and downloads the vehicle speed-vehicle power comparison table of the same type of vehicle from the cloud; the range anxiety calculation module calls the vehicle speed-vehicle power comparison table to check, and calculates the maximum energy-consuming speed and the minimum energy-saving speed between the maximum speed limit and the minimum speed limit of the section in combination with the mileage of the section and the set air-conditioning energy consumption power.

[0028] The prior establishment process of the vehicle speed-mileage power comparison table of the corresponding vehicle type in the cloud in step S2 includes:

[0029] The vehicle-end of a single vehicle uploads the vehicle speed-vehicle power comparison table of this vehicle to the cloud;

[0030] The cloud statistics the vehicle speed-vehicle power comparison tables of multiple vehicles of the same type and calculates the average value to obtain the vehicle speed-vehicle power comparison table of the same type of vehicle.

[0031] The beneficial effects brought by the technical solution provided by this application include:

[0032] 1. In the process of calculation, the mileage anxiety relief system for intelligent driving of the present application divides the optimal driving route into multiple sections. When setting the driving destination, the mileage anxiety calculation module finds the highest energy-consuming vehicle speed and the lowest energy-saving vehicle speed for each section based on the mileage of the section, the set air-conditioning energy consumption power, and the vehicle speed-vehicle power comparison table of the corresponding vehicle model, and uses the highest energy-consuming vehicle speed and the lowest energy-saving vehicle speed as the boundary conditions for simulation calculation. It can make a prediction when setting the driving destination, intuitively and clearly reflect whether the available power of the vehicle can meet the budgeted normal total energy consumption. If not, whether it can meet the budgeted energy-saving total energy consumption, and display the comparison result on the instrument panel display screen, which is intuitive and reliable. Compared with the prior art that suddenly prompts the driver that the battery is about to run out during driving, it is more intuitive and clear, and can solve the driver's mileage anxiety from the root, especially for long-distance driving.

[0033] 2. The mileage anxiety relief system for intelligent driving of the present application can intuitively and clearly present three states of the available power of the vehicle when setting the driving destination, namely, normal power sufficient, normal power insufficient but energy-saving power sufficient, and energy-saving power insufficient, which are intuitively and clearly presented in front of the driver, and relieve the driver's mileage anxiety from the root.

[0034] The mileage anxiety relief system for intelligent driving of the present application can flexibly switch the driving mode of the vehicle through the state management module when setting the driving destination, and guide the driver to reach the destination more conveniently and quickly through different driving modes. At the same time, when the available power of the vehicle is less than the budgeted energy-saving total energy consumption, the mileage anxiety calculation module controls the map engine calculation module to obtain the addresses of charging stations within a range of 1 km along the route from the current location to the destination, and prompts through a list on the instrument panel display screen, which can clearly and intuitively list the charging station information, with strong pertinence, reliability and convenience, and strong ability to relieve mileage anxiety.

[0035] 3. The relief method of the mileage anxiety relief system of the present application: The first step is to obtain the mileage of each section, as well as the highest speed limit vehicle speed and the lowest speed limit vehicle speed of each section. The second step is to obtain the available power of the vehicle, and calculate the highest energy-consuming vehicle speed and the lowest energy-saving vehicle speed for each section between its highest speed limit vehicle speed and the lowest speed limit vehicle speed, obtain the budgeted normal total energy consumption corresponding to the highest energy-consuming vehicle speed of all sections, and obtain the budgeted energy-saving total energy consumption corresponding to the lowest energy-saving vehicle speed of all sections. The third step is to compare the available power of the vehicle with the budgeted normal total energy consumption and the budgeted energy-saving total energy consumption respectively.

[0036] The mileage anxiety mitigation method of the mileage anxiety mitigation system of the present application is simple and efficient. It can make a prediction when setting the driving destination, intuitively and clearly reflect whether the normal driving power of the vehicle is sufficient. If not, it can also reflect whether the energy-saving driving power of the vehicle is sufficient, and display the comparison result on the dashboard display screen. It is intuitive and reliable. Compared with the prior art that suddenly prompts the driver that the power is about to run out during driving, it is more intuitive and clear, can solve the driver's mileage anxiety from the root, has a wide range of applications, and improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0038] Figure 1 It is a system block diagram of the mileage anxiety mitigation system provided by the embodiment of the present application;

[0039] Figure 2 It is a flowchart of the mileage anxiety mitigation method of the mileage anxiety mitigation system provided by the embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will further describe the present invention in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] As Figure 1 shown, the present application discloses an embodiment of a mileage anxiety mitigation system for intelligent driving. The mileage anxiety mitigation system includes an SOC calculation module, an air conditioning energy consumption calculation module, a map engine calculation module, and a mileage anxiety calculation module.

[0042] The SOC calculation module is used to obtain the available power of the vehicle in real time.

[0043] The air conditioning energy consumption calculation module is used to obtain the air conditioning energy consumption power.

[0044] The map engine calculation module is used to generate the optimal driving route based on the current location information and the destination information, divide the optimal driving route into multiple sections, and obtain the maximum speed limit and the minimum speed limit for each section. Specifically, for sections without a maximum speed limit and / or a minimum speed limit, the map engine calculation module sets the vehicle speed according to the set rules while following traffic rules, and sets the maximum speed limit and the minimum speed limit.

[0045] The mileage anxiety calculation module is respectively connected to the SOC calculation module, the air-conditioning energy consumption calculation module, and the map engine calculation module.

[0046] The mileage anxiety calculation module is used to calculate the maximum energy-consuming speed and the minimum energy-saving speed between the maximum speed limit and the minimum speed limit of each section when setting the driving destination, according to the mileage of the section, the set air-conditioning energy consumption power, and the vehicle speed-vehicle power conversion table of the corresponding vehicle model, and calculate the budgeted normal total energy consumption corresponding to the maximum energy-consuming speed and the budgeted energy-saving total energy consumption corresponding to the minimum energy-saving speed respectively.

[0047] Specifically, regardless of the vehicle speed, the air-conditioning energy consumption power always remains unchanged. Specifically, for example, the optimal driving route is divided into n sections.

[0048] For example: Section No. 1 has a maximum speed limit and a minimum speed limit.

[0049] When setting the driving destination, the mileage anxiety calculation module calculates the maximum energy-consuming speed and the minimum energy-saving speed between the maximum speed limit and the minimum speed limit of Section No. 1 according to the mileage of the section, the set air-conditioning energy consumption power, and the vehicle speed-vehicle power conversion table of the corresponding vehicle model.

[0050] Specifically, according to the section energy consumption formula: Q 1 = S1 × QV S1 + S1 / V S1 × P K

[0051] Q 1 is the energy consumption of Section No. 1, S1 is the mileage of Section No. 1, V S1 is the driving speed of the vehicle in Section No. 1, QV S1 is the mileage power corresponding to V S1 in the vehicle speed-vehicle power conversion table, and P K is the set air-conditioning energy consumption power, which is the time power.

[0052] When setting the driving destination, the mileage anxiety calculation module has made a budget for the first section of the road. Between the maximum speed limit and the minimum speed limit of the road section, the speed is divided into several speed points V1, V2, ……, Vi at intervals of 1 km / h, and then V S1 is successively set equal to V1, V2, ……, Vi. Combining with the vehicle speed-vehicle power conversion table, substitute it into Q 1 =S1×QV S1 +S1 / V S1 ×P K to calculate the energy consumption of the i road sections;

[0053] Find the speed V S1max corresponding to the maximum energy consumption of the first section of the road. Specifically, Q 1 max =S1×QV S1max +S 1 / V S1max ×P K ; Similarly, find the speed V S1min corresponding to the minimum energy consumption of the first section of the road. Specifically, Q 1 min =S1×QV S1min +S 1 / V S1min ×P K .

[0054] By analogy, obtain the maximum and minimum energy consumption of the first section of the road to the nth section of the road. The sum of the maximum energy consumption of all sections is the budgeted normal total energy consumption, and the sum of the minimum total energy consumption of all sections is the budgeted energy-saving total energy consumption. The budgeted normal total energy consumption and the budgeted energy-saving total energy consumption are also calculated by the mileage anxiety calculation module when setting the driving destination.

[0055] Compare the available vehicle power with the budgeted normal total energy consumption and the budgeted energy-saving total energy consumption respectively, and display the comparison results on the instrument panel display screen.

[0056] Specifically, the vehicle power is the total power consumption of other components of the vehicle except the air conditioner.

[0057] Specifically, the available vehicle power is equal to the difference between the remaining vehicle power and the reserved power. Among them, the reserved power is the power reserved by the vehicle to prevent accidents and for possible charging at a charging station after reaching the destination. The reserved power is a set value, for example, the reserved power is 10% of the total power.

[0058] Specifically, both the maximum speed limit and the minimum speed limit are between 20 km / h and 200 km / h; within this range, for a certain section of the road, the faster the speed of the electric vehicle, the greater the wind resistance to be overcome and the higher the energy consumption; but at the same time, the shorter the air conditioner is turned on, the lower the air conditioner energy consumption. The present application calculates the maximum energy-consuming speed and the minimum energy-saving speed between the maximum speed limit and the minimum speed limit, and uses the maximum energy-consuming speed and the minimum energy-saving speed as two defining conditions. If all sections of the road are simulated and calculated at the maximum energy-consuming speed and the available vehicle power meets the budgeted normal total energy consumption, it means that the vehicle will definitely be able to drive normally to the destination (in actual driving, there will only be more remaining power). If all sections of the road are simulated and calculated at the minimum energy-saving speed and the available vehicle power meets the budgeted energy-saving total energy consumption, it means that the vehicle can reach the destination with energy conservation at the actual driving speed same as the minimum energy-saving speed.

[0059] The mileage anxiety relief system for intelligent driving of the present application divides the optimal driving route into multiple sections during the calculation process, and uses the maximum energy-consuming speed and the minimum energy-saving speed as the defining conditions for simulation calculation; it can make a pre-judgment when setting the driving destination, intuitively and clearly reflect whether the available vehicle power can meet the budgeted normal total energy consumption, and if not, whether it can meet the budgeted energy-saving total energy consumption, and display the comparison result on the instrument panel display screen, which is intuitive and reliable. Compared with the prior art that suddenly prompts the driver that the battery is about to run out during driving, it is more intuitive and clear, and can solve the driver's mileage anxiety from the root, especially for long-distance driving.

[0060] Furthermore, when the mileage anxiety calculation module calculates the budgeted normal total energy consumption based on the maximum energy-consuming speed of the corresponding vehicle model on each section of the road (simulated and calculated at the maximum energy-consuming speed for all sections of the road and then superimposed and added) and the available vehicle power is greater than or equal to the budgeted normal total energy consumption, the mileage anxiety calculation module controls the instrument panel display screen to display that the normal power is sufficient. Otherwise, the mileage anxiety calculation module controls the instrument panel display screen to display that the normal power is insufficient.

[0061] When the instrument panel display screen shows that the normal power is insufficient and the mileage anxiety calculation module calculates the budgeted energy-saving total energy consumption based on the minimum energy-saving speed of the corresponding vehicle model on each section of the road, and the available vehicle power is greater than or equal to the budgeted energy-saving total energy consumption, the mileage anxiety calculation module controls the instrument panel display screen to display that the energy-saving power is sufficient. Otherwise, the mileage anxiety calculation module controls the instrument panel display screen to display that the energy-saving power is insufficient.

[0062] The mileage anxiety relief system for intelligent driving of the present application can, when setting the driving destination, intuitively and clearly divide the available vehicle power into three states, namely, normal power sufficient, normal power insufficient but energy-saving power sufficient, and energy-saving power insufficient, and present them intuitively and clearly in front of the driver, thus relieving the driver's mileage anxiety from the root.

[0063] Furthermore, the mileage anxiety mitigation system further includes a state management module for switching between a normal driving mode and an energy-saving driving mode.

[0064] The normal driving mode and the energy-saving driving mode are used to switch between the two modes according to the actual power status during the intelligent driving of the vehicle.

[0065] Specifically, when the available power of the vehicle is less than the budgeted normal total energy consumption and greater than or equal to the budgeted energy-saving total energy consumption, the state management module can be used to control the vehicle to switch from the normal driving mode to the energy-saving driving mode.

[0066] When the available power of the vehicle is less than the budgeted normal total energy consumption, the mileage anxiety calculation module obtains all the charging station addresses within 1 km along the route from the current location to the destination through the map engine calculation module and prompts them through the dashboard display list.

[0067] The mileage anxiety mitigation system for intelligent driving of the present application can flexibly switch the driving mode of the vehicle through the state management module when setting the driving destination, and guide the driver to reach the destination more conveniently and quickly through different driving modes; when the available power of the vehicle is less than the budgeted energy-saving total energy consumption, the mileage anxiety calculation module controls the map engine calculation module to obtain the charging station addresses within 1 km along the route from the current location to the destination and prompts them through the dashboard display list, which can clearly and intuitively list the charging station information, with strong pertinence, reliability and convenience, and strong ability to mitigate mileage anxiety.

[0068] In one embodiment, the mileage anxiety mitigation system further includes a vehicle networking module for realizing communication connection between the vehicle end and the cloud end. The vehicle networking module is connected to the mileage anxiety calculation module. The vehicle networking module uploads the vehicle model number to the cloud end and downloads the comparison table of vehicle speed and on-vehicle power of the same type of vehicle from the cloud end. Specifically, the cloud end has previously counted the comparison table of vehicle speed and on-vehicle power of the same type of vehicle.

[0069] The mileage anxiety calculation module looks up in the vehicle speed-on-vehicle power comparison table and calculates the highest energy-consuming vehicle speed and the lowest energy-saving vehicle speed between the maximum speed limit and the minimum speed limit.

[0070] In one embodiment, on the basis of the above technical solution, the mileage anxiety mitigation system further includes a speed control module, and the speed control module is connected to the mileage anxiety calculation module. The speed control module is used to be responsible for executing the target vehicle speeds of each section of the normal driving mode and the energy-saving driving mode during actual driving. Specifically, if the available vehicle power is greater than or equal to the budgeted normal total energy consumption, the target vehicle speed of each section executed by the speed control module is less than or equal to the corresponding maximum energy-consuming vehicle speed. If the available vehicle power is less than the budgeted normal total energy consumption and greater than the budgeted energy-saving total energy consumption, the target vehicle speed of each section executed by the speed control module is equal to the corresponding minimum energy-saving vehicle speed.

[0071] In one embodiment, the mileage anxiety mitigation system further includes two red and green indicator lights arranged side by side on the instrument panel display screen; when the first indicator light is green, it means that the normal power is sufficient; when the first indicator light is red, it means that the normal power is insufficient; when the second indicator light is green, it means that the energy-saving power is sufficient; when the second indicator light is red, it means that the energy-saving power is insufficient. The two indicator lights can intuitively and clearly present the power status to the driver, convert the unknown driving itinerary into a known driving itinerary, and mitigate the mileage anxiety.

[0072] As Figure 2 shown, the present application discloses a mitigation method based on the above mileage anxiety mitigation system, including the following steps:

[0073] S1: The mileage anxiety calculation module obtains the mileage of each section from the current location to the destination, as well as the maximum speed limit vehicle speed and the minimum speed limit vehicle speed of each section, from the map engine calculation module;

[0074] S2: The mileage anxiety calculation module obtains the available vehicle power from the SOC calculation module, obtains the set air-conditioning energy consumption power from the air-conditioning energy consumption calculation module, obtains the vehicle speed-vehicle-mounted power comparison table of the corresponding vehicle model from the cloud, and combines the mileage of each section between the maximum speed limit vehicle speed and the minimum speed limit vehicle speed of each section to calculate the corresponding maximum energy-consuming vehicle speed and the minimum energy-saving vehicle speed, and respectively calculates the budgeted normal total energy consumption corresponding to the maximum energy-consuming vehicle speed and the budgeted energy-saving total energy consumption corresponding to the minimum energy-saving vehicle speed;

[0075] S3: Compare the available vehicle power with the budgeted normal total energy consumption and the budgeted energy-saving total energy consumption respectively, and display the comparison results on the instrument panel display screen.

[0076] Specifically, the air-conditioning energy consumption power is equal to the average value of the air-conditioning energy consumption in the first 10 minutes. Assuming that the air-conditioning will not be turned up or down during the whole process, and during actual long-distance driving, the air-conditioning maintains a stable power, this assumption conforms to the actual situation. The air-conditioning energy consumption power is the energy consumption per unit time.

[0077] The mitigation method of the mileage anxiety mitigation system of the present application. In the first step, obtain the mileage of each section, as well as the maximum speed limit and the minimum speed limit of each section. In the second step, obtain the available power of the vehicle. For each section, calculate the maximum energy-consuming speed and the minimum energy-saving speed between its maximum speed limit and minimum speed limit, obtain the budgeted normal total energy consumption corresponding to the maximum energy-consuming speed of all sections, and obtain the budgeted energy-saving total energy consumption corresponding to the minimum energy-saving speed of all sections. In the third step, compare the available power of the vehicle with the budgeted normal total energy consumption and the budgeted energy-saving total energy consumption respectively.

[0078] The mitigation method of the mileage anxiety mitigation system of the present application is simple and efficient. It can make a prediction when setting the driving destination, intuitively and clearly reflect whether the power for normal driving of the vehicle is sufficient. If not, whether the power for energy-saving driving of the vehicle is sufficient, and display the comparison result on the instrument panel display screen, which is intuitive and reliable. Compared with the prior art that suddenly prompts the driver that the power is about to run out during driving, it is more intuitive and clear, can fundamentally solve the driver's mileage anxiety, has a wide range of applications, and improves the user experience.

[0079] Furthermore, when the mileage anxiety calculation module calculates the budgeted normal total energy consumption based on the on-vehicle power corresponding to the maximum energy-consuming speed of the corresponding vehicle model in each section (simulate and calculate using the maximum energy-consuming speed in all sections, and then superimpose and add), and the available power of the vehicle is greater than or equal to the budgeted normal total energy consumption, the mileage anxiety calculation module controls the instrument panel display screen to display that the normal power is sufficient. Otherwise, the mileage anxiety calculation module controls the instrument panel display screen to display that the normal power is insufficient.

[0080] When the instrument panel display screen displays that the normal power is insufficient, and the mileage anxiety calculation module calculates the budgeted energy-saving total energy consumption based on the on-vehicle power corresponding to the minimum energy-saving speed of the corresponding vehicle model in each section, and the available power of the vehicle is greater than or equal to the budgeted energy-saving total energy consumption, the mileage anxiety calculation module controls the instrument panel display screen to display that the energy-saving power is sufficient. Otherwise, the mileage anxiety calculation module controls the instrument panel display screen to display that the energy-saving power is insufficient.

[0081] The mitigation method of the mileage anxiety mitigation system of the present application can, when setting the driving destination, intuitively and clearly divide the available power of the vehicle into three states, namely, the normal power is sufficient, the normal power is insufficient but the energy-saving power is sufficient, and the energy-saving power is insufficient, and present them intuitively and clearly in front of the driver, fundamentally alleviating the driver's mileage anxiety.

[0082] Furthermore, the range anxiety mitigation system further includes a state management module, which is used to switch between the normal driving mode and the energy-saving driving mode. The normal driving mode and the energy-saving driving mode are used to switch between the two modes according to the actual power status during the intelligent driving of the vehicle. Specifically, when the available power of the vehicle is less than the budgeted normal total energy consumption and greater than or equal to the budgeted energy-saving total energy consumption, the state management module can be used to control the vehicle to switch from the normal driving mode to the energy-saving driving mode.

[0083] When the available power of the vehicle is less than the budgeted normal total energy consumption, the range anxiety calculation module obtains the addresses of all charging stations within 1 km along the route from the current location to the destination through the map engine calculation module, and prompts them through the dashboard display list to let the driver have an idea.

[0084] In one embodiment, the range anxiety mitigation system further includes a vehicle networking module, which is used to implement the communication connection between the vehicle end and the cloud end. The vehicle networking module is connected to the range anxiety calculation module.

[0085] In step S2, the vehicle networking module uploads the vehicle model number to the cloud end and downloads the speed-vehicle power comparison table of the same type of vehicle from the cloud end;

[0086] The range anxiety calculation module calls the speed-vehicle power comparison table and calculates the highest energy-consuming speed and the lowest energy-saving speed between the highest speed limit and the lowest speed limit;

[0087] In step S2, the budgeted normal total energy consumption is calculated using the highest energy-consuming speed corresponding to each section, and the budgeted energy-saving total energy consumption is calculated using the lowest energy-saving speed corresponding to each section.

[0088] Specifically, the speed-vehicle power comparison table of the corresponding vehicle model in the cloud end in step S2 is obtained through prior statistics, and its establishment process includes:

[0089] The vehicle end of a single vehicle statistically calculates the speed-vehicle power comparison table of its own vehicle and uploads it to the cloud end. Specifically, the comparison table divides the vehicle speed from 20 km / h to 200 km / h into a vehicle speed point every 1 km to obtain the speed-vehicle power comparison table.

[0090] The cloud end statistically calculates the speed-vehicle power comparison tables of multiple vehicles of the same model and calculates the average value to obtain the speed-vehicle power comparison table of this model. The speed-vehicle power comparison table of this model is more accurate than the speed-vehicle power comparison table of a single vehicle.

[0091] Specifically, the vehicle power is the range power, and the unit is kw·h / 100km.

[0092] The speed-vehicle power comparison table of the vehicle model is shown in the following table:

[0093]

[0094] Among them, the average energy consumption value of the vehicle model is equal to the average value obtained by summing the average energy consumption of each individual vehicle.

[0095] The current air-conditioning energy consumption P K is equal to the average value of the air-conditioning energy consumption within the previous 10 minutes, which is the time power.

[0096] The mileage of each section is S1, S2, S3, ……, Sn respectively.

[0097] For section S1, the energy consumption formula for the section: Q 1 = S1 × QV S1 + S1 / V S1 × P K .

[0098] Among them, Q 1 is the energy consumption of the first section, S1 is the mileage of the first section, V S1 is the driving speed of the vehicle on the first section, QV S1 is the mileage power corresponding to V S1 in the vehicle speed-vehicle power conversion table, and P K is the set air-conditioning power, which is the time power.

[0099] When the mileage anxiety calculation module sets the driving destination, it has already made a budget for the first section. Between the maximum speed limit and the minimum speed limit of the section, the speed is divided into several speed points V1, V2, ……, Vi at intervals of 1 km / h. Let V S1 be equal to V1, V2, ……, Vi in turn. Combining with the vehicle speed-vehicle power conversion table, substitute it into Q 1 = S1 × QV S1 + S1 / V S1 × P K to calculate i energy consumptions for the section;

[0100] Find the maximum energy consumption of the first section, that is, when max(S1 × QV S1 + S1 / V S1 × P K ), the corresponding speed V S1max , specifically, Q 1 max = S1 × QV S1max + S 1 / V S1max × P K ; Similarly, find the minimum energy consumption of the first section, that is, when min(S1 × QV S1 + S1 / V S1 × PK ) when, the corresponding speed V S1min , specifically, Q 1 min = S1×QV S1min + S 1 / V S1min × P K .

[0101] And so on, the maximum energy-consuming vehicle speeds and the minimum energy-saving vehicle speeds of all sections are obtained as follows:

[0102] The maximum energy-consuming vehicle speeds of the sections corresponding to each mileage of S1, S2, S3,..., Sn are V S1max , V S2max , V S3 max ,..., V Snmax , and the maximum energy-consuming vehicle power is QV S1max , QV S1max , QV S3 max ,..., QV Snmax .

[0103] The minimum energy-saving vehicle speeds of the sections corresponding to each mileage of S1, S2, S3,..., Sn are V S1min , V S2min , V S3min ,..., V Snmin , and the minimum energy-saving vehicle power is QV S1min , QV S2min , QV S3min ,..., QV Snmin .

[0104] The budgeted normal total energy consumption is Q Z , and the budgeted energy-saving total energy consumption is Q J .

[0105] The remaining battery power Q S , the reserved power Q L , and the available vehicle power Q Y = Q S - Q L ,

[0106] Q Z is equal to the sum of the energy consumptions of each section when driving at the maximum energy-consuming vehicle speed plus the air-conditioning energy consumption. The specific calculation formula is as follows:

[0107] Q Z = (S1×QV S1max + S 1 / V S1max × P K ) + (S2×QV S2max+S2 / V S2max ×

[0108] P K ) + ··· + (Sn × QV Snmax +Sn / V Snmax ×P K )。

[0109] Reserved power Q L is a set value to ensure that after the vehicle reaches the destination, there is still a certain driving range to drive to the charging pile for charging.

[0110] If Q Y ≥Q Z , it is determined that the available power Q of the vehicle Y is sufficient and the vehicle can drive to the destination with confidence. Otherwise, the available power of the vehicle is not enough to support the vehicle to reach the destination.

[0111] If the available power Q of the vehicle Y is sufficient to support the vehicle to drive to the destination, the instrument panel display screen will show a prompt that the normal power is sufficient, and then the process ends.

[0112] On the contrary, if the available power Q of the vehicle Y is not enough to drive to the destination, calculate whether the simulated energy-saving mode can drive the vehicle to the destination.

[0113] The formula for calculating the total energy consumption of the budget energy-saving is Q J is as follows:

[0114] Q J =(S1 × QV S1min +S 1 / V S2min ×P K )+(S2 × QV S2min +S2 / V S2min ×

[0115] P K )+···+(Sn × QV Snmin +Sn / V Snmin ×P K )

[0116] If Q J ≤Q Y <Q Z, it can enter the energy-saving mode and drive to the destination. The instrument panel display shows a prompt that the normal battery power is insufficient and the energy-saving battery power is sufficient, reminding the driver that they can enter the energy-saving mode and drive to the destination, and the map engine calculation module shows the duration to reach the destination. At this time, the driver can enter the energy-saving mode and drive to the destination; they can also choose not to enter the energy-saving mode, in which case the map engine calculation module prompts the driver to select a suitable charging station along the way to charge and gives a suggested charging power prompt.

[0117] Specifically, the charging power is △SOC = (Q Z -Q Y ) / Cn * 100%, where Cn is the total battery power.

[0118] In one embodiment, based on the above technical solution, the range anxiety mitigation system further includes a speed control module, and the speed control module is connected to the range anxiety calculation module. The speed control module is used to be responsible for executing the target vehicle speeds of each section of the normal driving mode and the energy-saving driving mode during actual driving.

[0119] Specifically, when it is previously calculated that the normal battery power is sufficient, during actual driving, the speed control module controls the vehicle to drive at 80% of the highest energy-consuming vehicle speed of the current section.

[0120] In one embodiment, the range anxiety mitigation system further includes two red and green indicator lights arranged side by side on the instrument panel display; when the first indicator light is green, it means the normal battery power is sufficient; when the first indicator light is red, it means the normal battery power is insufficient; when the second indicator light is green, it means the energy-saving battery power is sufficient; when the second indicator light is red, it means the energy-saving battery power is insufficient. The two indicator lights can intuitively and clearly present the battery status to the driver, convert the unknown driving journey into a known driving journey, and mitigate range anxiety.

[0121] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0122] It should be noted that in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0123] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. An intelligent driving range anxiety mitigation system, characterized in that, it includes: an SOC calculation module for obtaining the available power of the vehicle; an air conditioner energy consumption calculation module for obtaining the energy consumption power of the air conditioner; a map engine calculation module for generating an optimal driving route based on the current location information and destination information, dividing the optimal driving route into multiple sections, and obtaining the maximum speed limit and minimum speed limit of each section; a range anxiety calculation module, which is respectively connected to the SOC calculation module, the air conditioner energy consumption calculation module and the map engine calculation module; the range anxiety calculation module is used to calculate the maximum energy-consuming speed and the minimum energy-saving speed between the maximum speed limit and the minimum speed limit of each section according to the mileage of the section, the set air conditioner energy consumption power and the vehicle speed-vehicle power conversion table of the corresponding vehicle model when setting the driving destination, and calculate the budgeted normal total energy consumption corresponding to the maximum energy-consuming speed and the budgeted energy-saving total energy consumption corresponding to the minimum energy-saving speed respectively; compare the available power of the vehicle with the budgeted normal total energy consumption and the budgeted energy-saving total energy consumption respectively, and display the comparison result on the instrument panel display screen; when the available power of the vehicle is greater than or equal to the budgeted normal total energy consumption, the range anxiety calculation module controls the instrument panel display screen to display that the normal power is sufficient; otherwise, the range anxiety calculation module controls the instrument panel display screen to display that the normal power is insufficient; when the instrument panel display screen displays that the normal power is insufficient and the available power of the vehicle is greater than or equal to the budgeted energy-saving total energy consumption, the range anxiety calculation module controls the instrument panel display screen to display that the energy-saving power is sufficient; otherwise, the range anxiety calculation module controls the instrument panel display screen to display that the energy-saving power is insufficient; the range anxiety mitigation system further includes a state management module for switching between the normal driving mode and the energy-saving driving mode, and the state management module is connected to the range anxiety calculation module; when the available power of the vehicle is less than the budgeted normal total energy consumption and greater than or equal to the budgeted energy-saving total energy consumption, the state management module can be used to control the vehicle to switch from the intelligent normal driving mode to the intelligent energy-saving driving mode; when the available power of the vehicle is less than the budgeted normal total energy consumption, the range anxiety calculation module obtains all the charging station addresses within 1 km along the route from the current location to the destination through the map engine calculation module and prompts them in a list on the instrument panel display screen.

2. An intelligent driving range anxiety mitigation system according to claim 1, characterized in that: the range anxiety mitigation system further includes a vehicle networking module for realizing vehicle-end and cloud communication, and the vehicle networking module is connected to the range anxiety calculation module; the vehicle networking module uploads the vehicle model number to the cloud and downloads the vehicle speed-vehicle power conversion table of the same type of vehicle from the cloud; the range anxiety calculation module calls the vehicle speed-vehicle power conversion table and calculates the maximum energy-consuming speed and the minimum energy-saving speed between the maximum speed limit and the minimum speed limit of the section in combination with the mileage of the section and the set air conditioner energy consumption power.

3. An intelligent driving range anxiety mitigation system according to claim 1, characterized in that: The mileage anxiety mitigation system further includes a speed control module, which is connected to the mileage anxiety calculation module; the speed control module is responsible for executing the target vehicle speeds of each section in the normal driving mode and the energy-saving driving mode during actual driving.

4. An intelligent driving mileage anxiety mitigation system according to claim 1, characterized in that: The mileage anxiety mitigation system further includes two red and green indicator lights arranged side by side on the instrument panel display screen; when the first indicator light is green, it means that the normal power is sufficient; when the first indicator light is red, it means that the normal power is insufficient; when the second indicator light is green, it means that the energy-saving power is sufficient; when the second indicator light is red, it means that the energy-saving power is insufficient.

5. A mitigation method based on the mileage anxiety mitigation system according to claim 1, characterized in that it includes the following steps: S1: The mileage anxiety calculation module obtains the mileage of each section from the current location to the destination, as well as the maximum speed limit and minimum speed limit of each section from the map engine calculation module; S2: The mileage anxiety calculation module obtains the available vehicle power from the SOC calculation module, obtains the set air-conditioning energy consumption power from the air-conditioning energy consumption calculation module, obtains the vehicle speed-vehicle power conversion table of the corresponding vehicle model from the cloud, and combines the mileage of each section between the maximum speed limit and minimum speed limit of each section to calculate the corresponding maximum energy-consuming vehicle speed and minimum energy-saving vehicle speed, and respectively calculates the budgeted normal total energy consumption corresponding to the maximum energy-consuming vehicle speed and the budgeted energy-saving total energy consumption corresponding to the minimum energy-saving vehicle speed; S3: Compare the available vehicle power with the budgeted normal total energy consumption and the budgeted energy-saving total energy consumption respectively, and display the comparison results on the instrument panel display screen.

6. The mitigation method of the mileage anxiety mitigation system according to claim 5, characterized in that: The mileage anxiety mitigation system further includes a vehicle networking module for realizing vehicle-end and cloud communication, and the vehicle networking module is connected to the mileage anxiety calculation module; In step S2, the vehicle networking module uploads the vehicle model number to the cloud and downloads the vehicle speed-vehicle power conversion table of the same type of vehicle from the cloud; the mileage anxiety calculation module calls the vehicle speed-vehicle power conversion table to query, and calculates the maximum energy-consuming vehicle speed and the minimum energy-saving vehicle speed in combination with the mileage of the section and the set air-conditioning energy consumption power between the maximum speed limit and minimum speed limit of the section; The process of establishing the vehicle speed-mileage power conversion table of the corresponding vehicle model in the cloud in step S2 includes: The vehicle end of a single vehicle uploads the vehicle speed-vehicle power conversion table of the vehicle to the cloud; The cloud statistics the vehicle speed-vehicle power conversion tables of multiple vehicles of the same model and calculates the average value to obtain the vehicle speed-vehicle power conversion table of the same type of vehicle.

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