CN116007648A - A charging route planning and navigation method and system for pure electric vehicles - Google Patents

Abstract

The invention discloses a charging path planning and navigation method and system for a pure electric vehicle. The method includes: S101, according to destination information, departure place information, vehicle historical average power consumption, vehicle navigation map information, vehicle navigation charging pile distribution information, The remaining power of the vehicle is used to judge whether the current power is sufficient for long-distance travel. If so, provide the route and charging plan along the way, otherwise, remind the charging; S102. During the driving process of the vehicle according to the planned route, obtain the real-time power consumption of the vehicle and judge whether the vehicle can arrive The planned next charging pile, otherwise remind the real-time power consumption to exceed the plan; S103, find out whether there is a charging pile within the range of the remaining cruising range, and if there is a charging pile, provide countermeasures for selection according to the implementation strategy: 1. Change the route and charging plan along the way ; 2. Force vehicles to adopt pre-configured power consumption reduction measures; otherwise force vehicles to adopt countermeasure 2. The invention satisfies the actual requirement of the driver's charging planning.

Description

A charging route planning and navigation method and system for pure electric vehicles

technical field

The invention belongs to the field of automobiles, and in particular relates to a charging path planning and navigation method and system for pure electric vehicles.

Background technique

In recent years, people have gradually begun to choose electric vehicles as their own travel tools. However, due to factors such as cruising range and the popularity of charging facilities, the current long-distance travel experience of electric vehicles is very poor. Drivers often need to refer to navigation information before departure, and Check the distribution information of charging piles along the way, make a good charging plan, and avoid lying down during long-distance driving.

At present, navigation software such as AutoNavi and Baidu, which are commonly used in the market, have launched new energy navigation functions, which can plan routes and charge along the way according to the information entered by the driver, such as the vehicle's cruising range, departure place, and destination, which alleviates the long-distance traffic to a certain extent. Charging anxiety during travel, but affected by factors such as road conditions, driver's driving habits, and ambient temperature, the accuracy of this navigation route and charging planning information is very poor, requiring the driver to artificially reserve a large amount of battery power. Only by making certain modifications to the route and charging plan can we ensure that the vehicle does not suffer from insufficient power during long-distance travel.

With the continuous popularization of new energy vehicles, especially pure electric vehicles, more and more people begin to choose pure electric vehicles as their means of transportation for long-distance travel. The current mainstream navigation software is only based on the vehicle mileage, departure place, The accuracy of the route and charging planning information planned by the destination and other information is very poor, which can no longer meet the actual needs of drivers.

Contents of the invention

The purpose of the present invention is to provide a pure electric vehicle charging route planning and navigation method and system to meet the actual needs of drivers.

For this reason, the present invention provides a charging route planning and navigation method for a pure electric vehicle on the one hand, including: S101, according to the destination information, departure information, vehicle historical average power consumption, vehicle navigation map information, and vehicle navigation charging pile distribution information 1. The remaining power of the vehicle is used to determine whether the current power is sufficient for long-distance travel. If so, the route and charging plan along the way are provided; otherwise, the charging is reminded; Arrive at the next planned charging pile, if so, continue to drive according to the current planned route, otherwise, remind the real-time power consumption to exceed the plan; S103, check whether there is a charging pile within the range of the remaining cruising range, and if there is a charging pile, provide countermeasures according to the implementation strategy. Choices: 1. Change the route and charging plan along the way; 2. Force vehicles to adopt pre-configured power consumption reduction measures; if there is no charging pile, force vehicles to adopt pre-configured power consumption reduction measures.

According to another aspect of the present invention, an initial path planning module is provided, which is used to plan the route based on destination information, departure information, vehicle historical average power consumption, vehicle navigation map information, vehicle navigation charging pile distribution information, and vehicle remaining power. Judging whether the current power is sufficient for long-distance travel, if so, provide the route and charging plan along the way, otherwise remind charging; the route planning monitoring module is used to obtain the real-time power consumption of the vehicle when the vehicle is driving according to the planned route, and judge whether the vehicle can Arrive at the next planned charging pile, if so, continue to drive according to the current planned route, otherwise, remind the real-time power consumption to exceed the plan; the path planning adjustment module is used to find out whether there is a charging pile within the remaining cruising range, and provide countermeasures if there is a charging pile Measures to choose from: 1. Change the route and charging plan along the way; 2. Force vehicles to adopt pre-configured power consumption reduction measures; if there is no charging pile, force vehicles to adopt pre-configured power consumption reduction measures.

The present invention combines the power consumption information and remaining power information collected in real time by the battery management system on the vehicle with the map information provided by the vehicle navigation system, the distribution information of charging piles and other information, and the comprehensive evaluation provides the driver with more accurate and It can modify the route and charging plan along the way in real time according to the current power consumption to meet the actual needs of the driver.

In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. Hereinafter, the present invention will be described in further detail with reference to the drawings.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

Fig. 1 is a flow chart of a method for planning and navigating a charging route of a pure electric vehicle provided by an embodiment of the present invention;

Fig. 2 is a control flow chart of a method for planning and navigating a charging route of a pure electric vehicle provided by an embodiment of the present invention;

Fig. 3 is a block diagram of a charging route planning and navigation system for a pure electric vehicle provided by an embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Fig. 1 shows a flow chart of a method for planning and navigating a charging route of a pure electric vehicle proposed by an embodiment of the present invention.

As shown in Figure 1, the method includes the following steps:

S101. According to the destination information, the departure place information, the historical average power consumption of the vehicle, the vehicle navigation map information, the vehicle navigation charging pile distribution information, and the remaining power of the vehicle to determine whether the current power is sufficient for long-distance travel, and if so, provide the route and charging plan along the way, Otherwise, remind to charge.

Among them, the power consumption information and the remaining power information are collected by the battery management system in real time.

Vehicle navigation map information and vehicle navigation charging pile distribution information are provided by the vehicle navigation system.

The departure location information includes the departure location or current positioning information, or is input in other ways set by the vehicle navigation system.

In some embodiments, judging whether the current power is sufficient for long-distance travel includes: determining that the current power is sufficient for long-distance travel when the current power reaches the nearest charging pile along the route with a set power margin. The power margin can be set to 5%-30%.

In some embodiments, the historical average power consumption of the vehicle is a correction value of the real power consumption of the vehicle per 100 kilometers within the last predetermined period of time calculated by the vehicle-machine system, wherein the real power consumption of the vehicle per 100 kilometers is based on the road condition mutation information, Ambient temperature change information is corrected.

For example, when the urban road conditions are changed to high-speed road conditions, the fuel consumption is reduced, and the correction value is less than 1; when the high-speed road conditions are changed to urban road conditions, the correction value is greater than 1. The specific correction value can be calculated by comparing the average power consumption of different road conditions, or it can be implanted after actual measurement.

S102. When the vehicle is traveling along the planned route, obtain the real-time power consumption of the vehicle, and judge whether the vehicle can reach the next planned charging pile. If so, continue to drive according to the current planned route; otherwise, remind the real-time power consumption to exceed the plan.

Wherein, when the vehicle is traveling according to the planned route, the vehicle-machine system sends the average power consumption information to the vehicle navigation system in real time or at a certain period of time, and the vehicle navigation system obtains the real-time power consumption of the vehicle accordingly.

Reminding that the power consumption exceeds the plan is a very important part of the present invention. Feedback on the power consumption of the vehicle corresponding to the driving operation is helpful to improve the driving operation.

S103. Find whether there is a charging pile within the range of the remaining mileage. If there is a charging pile, provide countermeasures for selection according to the implementation strategy: 1. Change the route and charging plan along the way; 2. Force the vehicle to adopt pre-configured power consumption reduction measures; if The absence of charging stations forces vehicles to adopt pre-configured power consumption reduction measures.

Among them, the implementation strategy includes active strategy and passive strategy. The active strategy is the only countermeasure one for the car-machine system when there is a charging pile. The difference between passive strategies is that when there is a charging pile, the countermeasure is determined according to the user's choice. The user can choose countermeasure 1 or countermeasure 2.

In some embodiments, finding whether there are charging piles within the range of the remaining cruising range includes: there are multiple charging piles within the range of the remaining cruising range, and at this time, the utilization information of these charging piles is obtained, including the vacancy rate of the charging piles, the queuing information of charging vehicles, etc. , Accurately select the charging pile according to the charging strategy.

Charging strategies, such as avoiding peak travel strategies, charging price competitiveness strategies, charging station provider preference strategies, etc., can be provided to drivers as principles.

In some embodiments, changing the route and charging plan along the way includes simultaneously reminding the driver to take measures to reduce power consumption. At this time, the driver usually makes choices based on driving experience, such as adjusting the set temperature of the air conditioner, avoiding rapid acceleration, and so on.

In some embodiments, forcing the vehicle to adopt pre-configured power consumption reduction measures includes turning off the air conditioner, turning off the seat heating, limiting the maximum power of the motor, and increasing the power recovery ratio.

These enforcement measures need to obtain the corresponding authority to control, and can be added or deleted as needed.

The embodiment of the method using the active strategy will be described in detail below in conjunction with FIG. 2 .

First, before departure, the driver enters the departure place (or current location information) and destination information in the car navigation system. Information such as remaining power, first judge whether the current remaining power is sufficient for long-distance travel, if not, first remind the driver to charge, if the power is sufficient, provide the driver with an initial route and a charging plan along the way;

When the vehicle starts to drive according to the planned initial route, the vehicle-machine system can send real-time or fixed average power consumption information for a certain period of time to the navigation system. The remaining distance of the nearest charging pile, the distribution of the nearest charging pile and other information are used to analyze the planned initial path. If the current vehicle power consumption meets the initial path endurance requirements, the vehicle will continue to drive according to the current plan; if the current vehicle power consumption cannot When arriving at the planned nearest charging pile, the navigation system needs to find the nearest charging pile that meets the current mileage, so as to make real-time adjustments to the initial route and charging plan, and promptly remind the driver to adjust the air conditioner setting temperature or reduce the emergency. Acceleration and other operations to reduce power consumption.

When the current power consumption of the vehicle continues to increase and the cruising range can no longer reach the scheduled charging pile according to the plan, and according to the current power consumption speed, the vehicle cannot reach the nearest charging pile, the navigation system estimates the power to reach the nearest charging pile Demand or average power consumption target value, and transmit this value to the car-machine system, and the car-machine system takes measures to forcibly limit power consumption according to the input value, such as forcibly turning off the air conditioner, turning off the seat heating, limiting the maximum power of the motor, and increasing energy recovery ratio, etc., and inform the driver of the relevant information.

In addition, if information such as the vacancy rate of charging piles in the charging station and the queuing of charging vehicles can also be uploaded to the navigation system in real time in the future, the system will provide drivers with more accurate route planning and charging strategies during peak travel hours, improving travel efficiency.

In this embodiment, the car-machine system independently implements the route and charging planning along the way, which helps to improve the driving experience of specific users who prefer to worry-free.

Fig. 3 shows a block diagram of a charging route planning and navigation system for pure electric vehicles proposed by an embodiment of the present invention.

As shown in Figure 3, the system includes the following modules.

The initial path planning module 101 is used to judge whether the current power capacity is sufficient for long-distance travel according to the destination information, departure place information, historical average power consumption of the vehicle, vehicle navigation map information, vehicle navigation charging pile distribution information, and vehicle remaining power, and if so, provide The route and charging plan along the way, otherwise it will remind you to charge;

The path planning monitoring module 102 is used to obtain the real-time power consumption of the vehicle when the vehicle is traveling according to the planned path, and judge whether the vehicle can reach the next planned charging pile. If so, continue to drive according to the current planned path; Power consumption exceeds plan;

The path planning adjustment module 103 is used to find out whether there are charging piles within the range of the remaining mileage, and if there are charging piles, provide countermeasures for selection according to the implementation strategy: 1. Change the route and charging plan along the way; 2. Mandatory vehicles use pre-configured Power consumption reduction measures; if there is no charging pile, it is mandatory for vehicles to adopt pre-configured power consumption reduction measures.

This system combines the power consumption information and remaining power information collected by the battery management system in the car in real time with the map information provided by the car navigation system and the distribution information of charging piles. The comprehensive evaluation provides the driver with more accurate and It can modify the route and charging plan along the way in real time according to the current power consumption to meet the actual needs of the driver.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, devices, or computer program products. Accordingly, embodiments of the invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, embodiments of the invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

Embodiments of the present invention are described with reference to flowcharts and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor or processor of other programmable data processing terminal equipment to produce a machine such that instructions executed by the computer or processor of other programmable data processing terminal equipment Produce means for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the The instruction means implements the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded into a computer or other programmable data processing terminal equipment, so that a series of operational steps are performed on the computer or other programmable terminal equipment to produce computer-implemented processing, thereby The instructions executed above provide steps for implementing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. All modifications, substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A pure electric vehicle charging route planning and navigation method is characterized in that, comprising: S101. According to the destination information, departure place information, historical average power consumption of the vehicle, car navigation map information, car navigation charging pile distribution information and the remaining power of the vehicle to determine whether the current power is sufficient for long-distance travel, and if so, provide the route and charging plan along the way, Otherwise, remind to charge; S102. Obtain the real-time power consumption of the vehicle while the vehicle is traveling according to the planned route, and judge whether the vehicle can reach the next planned charging pile. If so, continue to drive according to the current planned route; otherwise, remind the real-time power consumption to exceed the plan; S103. Find whether there is a charging pile within the range of the remaining mileage. If there is a charging pile, provide countermeasures for selection according to the implementation strategy: 1. Change the route and charging plan along the way; 2. Force the vehicle to adopt pre-configured power consumption reduction measures; if The absence of charging stations forces vehicles to adopt pre-configured power consumption reduction measures. 2. The charging route planning and navigation method for pure electric vehicles according to claim 1, wherein said changing the route and charging plan along the way includes simultaneously reminding to take measures to reduce power consumption. 3. The charging path planning and navigation method for pure electric vehicles according to claim 1, wherein the reminder to take measures to reduce power consumption includes adjusting the set temperature of the air conditioner and avoiding rapid acceleration. 4. The charging route planning and navigation method for pure electric vehicles according to claim 1, wherein the forcing the vehicle to adopt pre-configured power consumption reduction measures includes turning off the air conditioner, turning off the seat heating, limiting the maximum power of the motor and increasing the power recovery ratio. 5. The charging route planning and navigation method for pure electric vehicles according to claim 1, wherein the departure location information includes departure location or current location information. 6. The charging route planning and navigation method for pure electric vehicles according to claim 1, characterized in that, when the vehicle is traveling according to the planned route, the vehicle-machine system sends the average power consumption information in real time or in a fixed period of time For the vehicle navigation system, the vehicle navigation system acquires the real-time power consumption of the vehicle accordingly. 7. The charging path planning and navigation method for pure electric vehicles according to claim 1, wherein the searching for whether there are charging piles within the range of the remaining cruising range comprises: if there are multiple charging piles within the range of the remaining cruising range, then obtaining The utilization information of these charging piles includes the vacancy rate of charging piles and the queuing information of charging vehicles, and the charging piles are accurately selected according to the charging strategy. 8. The charging path planning and navigation method for pure electric vehicles according to claim 1, wherein the historical average power consumption of the vehicle is the correction of the real power consumed by the vehicle per 100 kilometers within the last predetermined period of time calculated by the vehicle-machine system value, wherein, the real power consumption of the vehicle per 100 kilometers is corrected according to sudden changes in road conditions and sudden changes in weather. 9. The charging route planning and navigation method for pure electric vehicles according to claim 1, wherein the judging whether the current power is sufficient for long-distance travel includes: when the current power reaches the nearest charging pile along the way with a set power margin, It is determined that the current power is sufficient for long-distance travel. 10. A pure electric vehicle charging path planning navigation system, characterized in that it comprises: The initial path planning module is used to judge whether the current power is sufficient for long-distance travel based on destination information, departure information, historical average power consumption of the vehicle, vehicle navigation map information, vehicle navigation charging pile distribution information, and vehicle remaining power, and provide a route if so And the charging plan along the way, otherwise it will remind you to charge; The path planning monitoring module is used to obtain the real-time power consumption of the vehicle when the vehicle is driving according to the planned path, and judge whether the vehicle can reach the next planned charging pile. Consumption exceeds plan; The path planning adjustment module is used to find whether there are charging piles within the range of the remaining mileage. If there are charging piles, it will provide countermeasures for selection according to the implementation strategy: 1. Change the route and charging plan along the way; 2. Mandatory vehicles use pre-configured battery If there is no charging pile, the vehicle is forced to adopt pre-configured power consumption reduction measures.

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