Driving mode switching method and device and storage medium

Abstract

The invention discloses a driving mode switching method and device and a storage medium, and belongs to the technical field of vehicle control. The method comprises the following steps: receiving original navigation information, wherein the original navigation information comprises at least one of original traffic light information, original traffic jam information, original basic navigation information, original full-amount road information or original destination information; converting the original navigation information into a navigation message conforming to a communication protocol; predicting a driving demand of the vehicle based on the navigation message; and adjusting the driving mode of the vehicle or the braking strength of a braking system based on the driving demand. The convenience and accuracy of driving mode switching are improved, so that the fuel economy of the vehicle is improved, the vehicle using cost is reduced, and the operation process of a user is simplified.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of vehicle control technology, and in particular to a method, device and storage medium for switching a driving mode. Background Art

[0002] When driving a PHEV (Plug-in Hybrid Electric Vehicle), the vehicle's driving mode needs to be adjusted according to the road conditions. PHEV usually includes EV (Electric Vehicle Mode), HEV (Hybrid Electric Vehicle Mode) and HEV+ driving modes. Among them, HEV+ optimizes fuel economy based on HEV.

[0003] In the related art, the user needs to judge the road conditions ahead and manually switch to a fixed driving mode when driving. In the related art, the adjustment of the driving mode is not accurate enough while causing inconvenience to the user. Therefore, how to improve the convenience and accuracy of driving mode switching is very important to improve the fuel economy of the vehicle, reduce the cost of using the vehicle, and simplify the user's operation process. Summary of the invention

[0004] The embodiment of the present application provides a method, device and storage medium for selecting a power conservation mode, which can be used to improve the fuel economy of a vehicle, reduce vehicle use costs and simplify the corresponding operation process of the user. The technical solution is as follows:

[0005] On the one hand, an embodiment of the present application provides a method for switching a driving mode, the method comprising:

[0006] Receiving original navigation information, the original navigation information including at least one of original traffic light information, original traffic congestion information, original basic navigation information, original full road information, or original destination information;

[0007] Converting the original navigation information into a navigation message that complies with a communication protocol;

[0008] predicting a driving demand of the vehicle based on the navigation message;

[0009] The driving mode of the vehicle or the braking strength of the braking system is adjusted based on the driving demand.

[0010] On the other hand, a driving mode switching device is provided, the device comprising:

[0011] A receiving module, configured to receive original navigation information, wherein the original navigation information includes at least one of original traffic light information, original traffic congestion information, original basic navigation information, original full road information, or original destination information;

[0012] A conversion module, used for converting the original navigation information into a navigation message conforming to a communication protocol;

[0013] A prediction module, configured to predict a driving demand of a vehicle based on the navigation message;

[0014] An adjustment module is used to adjust the driving mode of the vehicle or the braking strength of the braking system based on the driving demand.

[0015] On the other hand, a non-temporary computer-readable storage medium is also provided, characterized in that a computer program is stored in the computer-readable storage medium, and the computer program is loaded and executed by a processor to implement any of the above-mentioned driving mode switching methods.

[0016] On the other hand, a computer program product is also provided, the computer program product comprising computer instructions, and when the computer instructions are executed by a processor, the steps of any of the above-mentioned driving mode switching methods are implemented.

[0017] The technical solution provided by this application brings at least the following beneficial effects:

[0018] The present application receives original navigation information to obtain original navigation information including original traffic light information, original traffic congestion information, original basic navigation information, original full road information or original destination information; then converts the original navigation information into a navigation message that complies with the communication protocol; predicts the driving needs of the vehicle according to the navigation message, and adjusts the driving mode of the vehicle or the braking strength of the braking system based on the driving needs, thereby improving the convenience and accuracy of driving mode switching, thereby improving the fuel economy of the vehicle, reducing the cost of using the vehicle and simplifying the user's operating process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of an implementation environment provided by an embodiment of the present application;

[0021] Figure 2is a flow chart of a method for switching a driving mode provided in an embodiment of the present application;

[0022] Figure 3 It is a structural schematic diagram of a driving mode switching device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0023] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0024] The present application embodiment provides a method for switching a driving mode. Figure 1 , which shows a schematic diagram of the implementation environment of the method provided in the embodiment of the present application. The implementation environment may include: ADDC (Autonomous Driving Domain Controller) 11, BMS (Battery Management System) 12 and EBS (Electronic Brake System) 13.

[0025] Optionally, BMS12 is used to obtain the battery power and send it to ADDC11, so that ADDC11 can control the battery power consumption based on the driving needs of the vehicle. EBS13 is used to increase the braking strength of the braking system according to the instructions of ADDC11, so as to meet the vehicle's increased energy recovery needs. Among them, ADDC11, BMS12 and EBS13 establish a communication connection through a wired or wireless network.

[0026] Based on the above Figure 1 In the implementation environment shown, the present application embodiment provides a method for switching a driving mode as shown in FIG. Figure 2 As shown, taking the method applied to ADDC as an example, the method includes steps 201 to 204.

[0027] In step 201, the ADDC receives original navigation information, where the original navigation information includes at least one of original traffic light information, original traffic congestion information, original basic navigation information, original full road information, or original destination information.

[0028] In a possible implementation, the ADDC receives original navigation information sent by the vehicle navigation system through a communication protocol interface, wherein the original navigation information includes original traffic light information, original traffic congestion information, original basic navigation information, original full road information or original destination information. Optionally, the vehicle navigation is installed in the cockpit area of ​​the vehicle to generate original navigation information of the vehicle.

[0029] In step 202, the ADDC converts the original navigation information into a navigation message that complies with the communication protocol.

[0030] Exemplarily, after receiving the original navigation information, ADDC converts the original navigation information into a navigation message that complies with the communication protocol, including: converting the original traffic light information into a traffic light message corresponding to the communication protocol, the traffic light message is used to indicate that the vehicle is in a red light state when it arrives at the nearest intersection; converting the original traffic congestion information into a traffic congestion message corresponding to the communication protocol, the traffic congestion message is used to indicate that there is congestion within a first distance ahead of the road section where the vehicle is located; converting the original basic navigation information into a turn message, an uphill message or a vehicle position message corresponding to the communication protocol, the turn message is used to indicate that there is a road condition that requires a large turn within a second distance ahead of the road section where the vehicle is located, the uphill message is used to indicate that there is a road condition that requires an uphill climb within a second distance ahead of the road section where the vehicle is located, and the vehicle position message includes the position of the vehicle in the road section; converting the original full road information into the road to which the vehicle section belongs and the grade of the road corresponding to the communication protocol, the grades of the road include highways, expressways, provincial roads and national roads, and the grades of the roads increase in the order of highways, expressways, provincial roads and national roads; converting the original destination information into a destination message corresponding to the communication protocol, the destination message is used to indicate that the distance between the vehicle and the destination is less than the third distance.

[0031] In a possible implementation, ADDC converts the original traffic light information into a traffic light message corresponding to the communication protocol, wherein the traffic light message is used to indicate that the vehicle is in a red light state when it reaches the nearest intersection. Optionally, the original traffic light information includes the current state of the traffic light at the nearest intersection to the vehicle, the change cycle of the traffic light, and the time it takes for the vehicle to reach the intersection from the current position.

[0032] Optionally, ADDC calculates whether the traffic light is in a red state when the vehicle arrives at the nearest intersection based on the current state of the traffic light, the change cycle of the traffic light, and the time it takes for the vehicle to reach the intersection from the current position. If it is calculated that the traffic light is in a red state when the vehicle arrives at the nearest intersection, ADDC generates a traffic light message that complies with the communication protocol.

[0033] Exemplarily, ADDC converts the original traffic congestion information into a traffic congestion message corresponding to the communication protocol, wherein the traffic congestion message is used to indicate that there is a congestion situation within a first distance ahead of the road section where the vehicle is located. In a possible implementation, the original traffic congestion information includes the vehicle flow within the first distance ahead of the road section where the vehicle is located. Optionally, ADDC determines whether there is a congestion situation within the first distance ahead of the road section where the vehicle is located based on the vehicle flow within the first distance ahead of the road section where the vehicle is located. If it is determined that there is a congestion situation within the first distance ahead of the road section where the vehicle is located, ADDC generates a traffic congestion message that complies with the communication protocol. Wherein, the first distance can be preset based on experience.

[0034] Exemplarily, ADDC converts the original basic navigation information into a turn message, an uphill message or a vehicle position message corresponding to the communication protocol, wherein the turn message is used to indicate that a road condition requiring a large turn exists at a second distance ahead of the road section where the vehicle is located, the uphill message is used to indicate that a road condition requiring an uphill climb exists at a second distance ahead of the road section where the vehicle is located, and the vehicle position message includes the position of the vehicle in the road section.

[0035] In a possible implementation, the original basic navigation information includes the position of the vehicle in the road section, the road slope and the road curvature within the second distance ahead of the road section where the vehicle is located. Exemplarily, the ADDC determines whether there is a road condition requiring an uphill climb within the second distance ahead of the road section where the vehicle is located based on the road slope within the second distance ahead of the road section where the vehicle is located. If it is determined that there is a road condition requiring an uphill climb within the second distance ahead of the road section where the vehicle is located, the ADDC generates an uphill climb message that complies with the communication protocol.

[0036] Optionally, ADDC determines whether there is a road condition requiring a sharp turn at the second distance ahead of the road section where the vehicle is located based on the road curvature within the second distance ahead of the road section where the vehicle is located. If it is determined that there is a road condition requiring a sharp turn at the second distance ahead of the road section where the vehicle is located, ADDC generates a turning message that complies with the communication protocol. Exemplarily, ADDC also converts the position of the vehicle in the road section into a message that complies with the communication protocol. The second distance can be preset based on experience.

[0037] In a possible implementation, ADDC converts the original full road information into the road to which the vehicle's section belongs and the grade of the road corresponding to the communication protocol, wherein the grade of the road includes highway, expressway, provincial road and national road, and the grade of the road increases in the order of highway, expressway, provincial road and national road. In a possible implementation, the original full road information includes the road to which the vehicle's section belongs and the grade of the road, and ADDC converts the road to which the vehicle's section belongs and the grade of the road into a message that complies with the communication protocol.

[0038] Exemplarily, the original destination information is converted into a destination message corresponding to the communication protocol, wherein the destination message is used to indicate that the distance between the vehicle and the destination is less than a third distance. In a possible implementation, the original destination information includes the distance between the vehicle and the destination. Exemplarily, the ADDC compares the distance between the vehicle and the destination with a preset third distance, and if the distance between the vehicle and the destination is less than the third distance, generates a destination message that complies with the communication protocol. The third distance can be preset based on experience.

[0039] In one possible implementation, after ADDC completes converting the vehicle's position in a road section into a message that complies with the communication protocol, and converting the road to which the vehicle's road section belongs and the level of the road into a message that complies with the communication protocol, the position of the vehicle in the road is determined based on the road to which the vehicle's road section belongs and the vehicle's position in the road section; and the distance of the vehicle from a road of a higher level is calculated based on the vehicle's position in the road and the level of the road.

[0040] Optionally, ADDC determines the position of the vehicle on the road based on the position of the vehicle on the road segment and the road to which the vehicle's road segment belongs, combined with the position of the vehicle's road segment on the road, and then identifies the road closest to the current road and a must-go road for the vehicle to reach its destination among the remaining roads with a higher level than the current road according to the level of the road. After determining the must-go road of the higher level, ADDC calculates the distance the vehicle needs to travel before entering the must-go road of the higher level as the distance of the vehicle from the road of the higher level.

[0041] In step 203 , the ADDC predicts the driving demand of the vehicle based on the navigation message.

[0042] Exemplarily, after completing the conversion of the navigation message, ADDC predicts the driving demand of the vehicle based on the navigation message, including: in response to obtaining a traffic congestion message, a turning message, an uphill message, or the vehicle's distance from a higher-level road being less than at least one of a fourth distance, predicting the vehicle's driving demand as a power conservation demand; in response to obtaining a destination message, predicting the vehicle's driving demand as a power consumption demand; in response to obtaining a traffic light message, predicting the vehicle's driving demand as an increased energy recovery demand.

[0043] In one possible implementation, after completing the conversion of the navigation message, if at least one of a traffic congestion message, a turning message, an uphill message, or the vehicle's distance from a higher-level road is less than a fourth distance is obtained, ADDC predicts that the vehicle's driving demand is a power conservation demand; if the destination message is obtained, ADDC predicts that the vehicle's driving demand is a power consumption demand; if the traffic light message is obtained, ADDC predicts that the vehicle's driving demand is a demand for increased energy recovery.

[0044] In step 204 , the ADDC adjusts the driving mode of the vehicle or the braking intensity of the braking system based on the driving demand.

[0045] Optionally, after completing the prediction of the vehicle's driving demand, ADDC adjusts the vehicle's driving mode or the braking strength of the braking system based on the driving demand, including: in response to the driving demand for power conservation, calculating the amount of power that the vehicle's battery needs to retain based on the navigation message; in response to the battery power being less than or equal to the amount of power that needs to be retained, controlling the vehicle to switch to HEV mode.

[0046] In one possible implementation, if the driving demand of the vehicle is predicted to be a power conservation demand, ADDC calculates the amount of power that the vehicle's battery needs to retain based on the navigation message, including: calculating the length of the road section where the vehicle needs to conserve power based on the navigation message; calculating the amount of power that the battery needs to retain based on the length of the road section.

[0047] Exemplarily, ADDC calculates the length of the road section where the vehicle needs to keep powered based on the navigation message, including: in response to obtaining a traffic congestion message, ADDC uses the distance between the vehicle and the traffic congestion area as the length of the road section where the vehicle needs to keep powered; in response to obtaining a turning message, ADDC uses the distance between the vehicle and the curve area as the length of the road section where the vehicle needs to keep powered; in response to obtaining an uphill message, ADDC uses the distance between the vehicle and the slope area as the length of the road section where the vehicle needs to keep powered.

[0048] Optionally, in response to the distance between the vehicle and the road of a higher level being less than a fourth distance, ADDC uses the distance between the vehicle and the road of a higher level as the length of the road section where the vehicle needs to keep its battery charged. After the vehicle enters the road of a higher level, the distance that the vehicle leaves the road of a higher level and enters the road of a lower level is calculated according to the navigation message. If the distance that the vehicle leaves the road of a higher level and enters the road of a lower level is less than the fourth distance, ADDC uses the distance that the vehicle leaves the road of a higher level and enters the road of a lower level as the length of the road section where the vehicle needs to keep its battery charged. In a possible implementation, the fourth distance can be preset based on experience.

[0049] In a possible implementation, after the length of the road section where the vehicle needs to maintain power is calculated, the amount of power that the battery needs to retain is calculated based on the length of the road section. The formula for calculating the amount of power that the battery needs to retain is as follows:

[0050] E elec,i =k elec ·d i ·(1+θ i )

[0051] Among them, E elec,i is the amount of power that the battery needs to retain, k elecis the battery unit energy consumption coefficient, d i is the length of the road section, θ i is the slope. Optionally, when going uphill, θ i is a positive number, when going downhill, θ i Is a negative number.

[0052] Exemplarily, after determining the amount of power that the vehicle's battery needs to retain, the ADDC obtains the battery's power through the BMS and compares the battery's power with the amount of power that the battery needs to retain. If the battery's power is less than or equal to the amount of power that needs to be retained, the ADDC controls the vehicle to switch to the HEV mode.

[0053] In another possible implementation, the driving mode of the vehicle or the braking strength of the braking system is adjusted based on driving demand, and also includes: in response to the driving demand for increasing energy recovery, increasing the braking strength of the braking system; in response to the driving demand for power consumption, controlling the vehicle to switch to EV mode.

[0054] Optionally, if the driving demand is to increase the energy recovery demand, ADDC increases the braking strength of the braking system through EBS. If the driving demand is to consume electricity, ADDC controls the vehicle to switch to EV mode to exhaust the battery before reaching the destination, thereby achieving fuel economy.

[0055] The embodiment of the present application receives original navigation information to obtain original navigation information including original traffic light information, original traffic congestion information, original basic navigation information, original full road information or original destination information; converts the original navigation information into a navigation message that complies with the communication protocol; predicts the driving needs of the vehicle according to the navigation message, and adjusts the driving mode of the vehicle or the braking strength of the braking system based on the driving needs, thereby improving the convenience and accuracy of driving mode switching, thereby improving the fuel economy of the vehicle, reducing the cost of using the vehicle and simplifying the user's operating process.

[0056] See also Figure 3 , an embodiment of the present application provides a driving mode switching device, the device comprising:

[0057] The receiving module 301 is used to receive original navigation information, where the original navigation information includes at least one of original traffic light information, original traffic congestion information, original basic navigation information, original full road information or original destination information;

[0058] The conversion module 302 is used to convert the original navigation information into a navigation message that complies with the communication protocol;

[0059] A prediction module 303, for predicting a driving demand of a vehicle based on a navigation message;

[0060] The adjustment module 304 is used to adjust the driving mode of the vehicle or the braking strength of the braking system based on driving requirements.

[0061] In a possible implementation, the conversion module 302 is used to convert the original traffic light information into a traffic light message corresponding to the communication protocol, the traffic light message is used to indicate that the vehicle is in a red light state when it reaches the nearest intersection; convert the original traffic congestion information into a traffic congestion message corresponding to the communication protocol, the traffic congestion message is used to indicate that there is congestion within a first distance ahead of the road section where the vehicle is located; convert the original basic navigation information into a turn message, an uphill message or a vehicle position message corresponding to the communication protocol, the turn message is used to indicate that there is a road condition that requires a large turn within a second distance ahead of the road section where the vehicle is located, the uphill message is used to indicate that there is a road condition that requires an uphill climb within a second distance ahead of the road section where the vehicle is located, and the vehicle position message includes the position of the vehicle in the road section; convert the original full road information into the road to which the vehicle section belongs and the grade of the road corresponding to the communication protocol, the grades of the road include highways, expressways, provincial roads and national roads, and the grades of the roads increase in the order of highways, expressways, provincial roads and national roads; convert the original destination information into a destination message corresponding to the communication protocol, the destination message is used to indicate that the distance between the vehicle and the destination is less than the third distance.

[0062] In one possible implementation, the device also includes: a determination module for determining the position of the vehicle on the road based on the road to which the road section where the vehicle is located belongs and the position of the vehicle in the road section; and a calculation module for calculating the distance of the vehicle from a road of a higher level based on the position of the vehicle on the road and the level of the road.

[0063] In one possible implementation, the prediction module 303 is used to predict that the vehicle's driving demand is a power conservation demand in response to obtaining a traffic congestion message, a turning message, an uphill message, or the vehicle's distance from a higher-level road is less than at least one of a fourth distance; predict that the vehicle's driving demand is a power consumption demand in response to obtaining a destination message; and predict that the vehicle's driving demand is an increased energy recovery demand in response to obtaining a traffic light message.

[0064] In one possible implementation, the adjustment module 304 is used to calculate the amount of power that the vehicle's battery needs to retain based on the navigation message in response to the driving demand being a power conservation demand; and control the vehicle to switch to HEV mode in response to the battery's power being less than or equal to the amount of power that needs to be retained.

[0065] In a possible implementation, the adjustment module 304 is used to calculate the length of the road section where the vehicle needs to maintain power based on the navigation message; and calculate the amount of power that the battery needs to retain based on the length of the road section.

[0066] In a possible implementation, the adjustment module 304 is used to increase the braking strength of the braking system in response to the driving demand for increasing energy recovery; and to control the vehicle to switch to the EV mode in response to the driving demand for power consumption.

[0067] The device receives original navigation information to obtain original navigation information including original traffic light information, original traffic congestion information, original basic navigation information, original full road information or original destination information; then converts the original navigation information into a navigation message that complies with the communication protocol; predicts the driving demand of the vehicle according to the navigation message, and adjusts the driving mode of the vehicle or the braking strength of the braking system based on the driving demand, thereby improving the convenience and accuracy of driving mode switching, thereby improving the fuel economy of the vehicle, reducing the cost of using the vehicle and simplifying the user's operation process.

[0068] It should be noted that the device provided in the above embodiment only uses the division of the above functional modules as an example to implement its functions. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the device and method embodiments provided in the above embodiment belong to the same concept, and their specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0069] In an exemplary embodiment, a computer-readable storage medium is also provided, in which at least one computer program is stored. The at least one computer program is loaded and executed by a processor of a computer device to enable the computer to implement any of the above-mentioned driving mode switching methods.

[0070] In one possible implementation, the computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a compact disc (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, etc.

[0071] In an exemplary embodiment, a computer program product or a computer program is also provided, the computer program product or the computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs any of the above-mentioned methods for switching the driving modes.

[0072] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.) and signals involved in this application are all authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of relevant countries and regions. For example, the original navigation information, navigation messages that comply with the communication protocol, and vehicle driving requirements involved in this application are all obtained with full authorization.

[0073] It should be understood that the "plurality" mentioned in this article refers to two or more. "And / or" describes the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0074] It should be noted that the terms "first", "second", etc. (if any) in the specification and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0075] The above description is only an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method for switching a driving mode, characterized in that: The method comprises: Receiving original navigation information, the original navigation information including at least one of original traffic light information, original traffic congestion information, original basic navigation information, original full road information, or original destination information; Converting the original navigation information into a navigation message that complies with a communication protocol; predicting a driving demand of the vehicle based on the navigation message; The driving mode of the vehicle or the braking strength of the braking system is adjusted based on the driving demand.

2. The method according to claim 1, characterized in that The converting the original navigation information into a navigation message conforming to the communication protocol comprises: Converting the original traffic light information into a traffic light message corresponding to the communication protocol, wherein the traffic light message is used to indicate that the vehicle is in a red light state when it reaches the nearest intersection; Converting the original traffic congestion information into a traffic congestion message corresponding to the communication protocol, wherein the traffic congestion message is used to indicate that there is a congestion situation within a first distance ahead of the road section where the vehicle is located; Converting the original basic navigation information into a turn message, an uphill message or a vehicle position message corresponding to the communication protocol, wherein the turn message is used to indicate that a road condition requiring a large turn exists at a second distance ahead of the road section where the vehicle is located, the uphill message is used to indicate that a road condition requiring an uphill climb exists at a second distance ahead of the road section where the vehicle is located, and the vehicle position message includes the position of the vehicle in the road section; Convert the original full road information into the road to which the road section where the vehicle is located corresponds to the communication protocol and the grade of the road, wherein the grade of the road includes highway, expressway, provincial road and national road, and the grade of the road increases in the order of highway, expressway, provincial road and national road; The original destination information is converted into a destination message corresponding to the communication protocol, where the destination message is used to indicate that the distance between the vehicle and the destination is less than a third distance.

3. The method according to claim 2, characterized in that The method further comprises: Determine the position of the vehicle on the road based on the road to which the road section where the vehicle is located belongs and the position of the vehicle on the road section; The distance of the vehicle from a road of a higher grade is calculated based on the position of the vehicle on the road and the grade of the road.

4. The method according to claim 3, characterized in that The predicting the driving demand of the vehicle based on the navigation message includes: In response to obtaining at least one of the traffic congestion message, the turning message, the uphill message, or the distance between the vehicle and the road of a higher level being less than a fourth distance, predicting that the driving demand of the vehicle is a power conservation demand; In response to obtaining the destination message, predicting that the driving demand of the vehicle is a power consumption demand; In response to acquiring the traffic light message, the driving demand of the vehicle is predicted to be an increased energy recovery demand.

5. The method according to claim 4, characterized in that The adjusting the driving mode of the vehicle or the braking strength of the braking system based on the driving demand includes: In response to the driving requirement being the power conservation requirement, calculating the amount of power that the battery of the vehicle needs to retain based on the navigation message; In response to the power level of the battery being less than or equal to the power level that needs to be retained, the vehicle is controlled to switch to an HEV mode.

6. The method according to claim 5, characterized in that The calculating the amount of power that needs to be retained by the battery of the vehicle based on the navigation message includes: Calculating the length of the road section where the vehicle needs to maintain power based on the navigation message; The amount of power that the battery needs to retain is calculated based on the length of the road section.

7. The method according to claim 4, characterized in that The adjusting the driving mode of the vehicle or the braking strength of the braking system based on the driving demand includes: In response to the driving demand being the increased energy recovery demand, increasing the braking intensity; In response to the driving demand being the electric power consumption demand, the vehicle is controlled to switch to an EV mode.

8. A driving mode switching device, characterized in that: The device comprises: A receiving module, configured to receive original navigation information, wherein the original navigation information includes at least one of original traffic light information, original traffic congestion information, original basic navigation information, original full road information, or original destination information; A conversion module, used for converting the original navigation information into a navigation message conforming to a communication protocol; A prediction module, configured to predict a driving demand of a vehicle based on the navigation message; An adjustment module is used to adjust the driving mode of the vehicle or the braking strength of the braking system based on the driving demand.

9. A computer program product, comprising computer instructions, wherein when the computer instructions are executed by a processor, the steps of the method for switching the driving mode according to any one of claims 1 to 7 are implemented.

10. A non-transitory computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and the computer program is loaded and executed by a processor to implement the driving mode switching method according to any one of claims 1 to 7.

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