Electric vehicle speed control method and system based on remote communication

Abstract

The invention relates to the technical field of electric vehicle speed control, and discloses an electric vehicle speed control system based on remote communication. The electric vehicle speed control system comprises a road data collection module, an emergency situation data collection module, an electric vehicle speed control module, an electric vehicle speed uploading module and an electric vehicle speed early warning module. And the electric vehicle speed control module is used for regulating and controlling the speed of the electric vehicle after respectively receiving the data in the road data collection module and the emergency data collection module. According to the method, the real-time geographic position of the electric vehicle is obtained through a vehicle-mounted GPS positioning part of the electric vehicle, and meanwhile data positioned by the GPS positioning part are uploaded to a map of a cloud end; and the upper limit of the speed of the electric vehicle is limited according to the road congestion condition, the road bumping condition and the road speed limiting condition at the positions of 500m in the forward direction of the current positioning road and 250m in all branches of the current road and whether special areas exist around the road, so that the driving safety of a driver is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle speed control, and in particular to a method and system for controlling the speed of an electric vehicle based on remote communication. Background Art

[0002] Electric vehicles, as a light, fast and environmentally friendly means of transportation, have been deeply integrated into modern people's urban life and have become an indispensable part. With its unique advantages, it has changed people's travel methods and improved travel efficiency. At the same time, it has also made positive contributions to environmental protection. From the perspective of technological development, the electric vehicle industry has experienced a transformation from traditional battery drive to smart electric. This change is not only a technological upgrade, but also a profound impact on user experience and travel methods. Although traditional battery-driven electric vehicles can meet basic travel needs, they have certain limitations in terms of endurance and driving experience. With the advancement of science and technology, smart electric vehicles have emerged. It uses more advanced battery technology and intelligent control systems, which greatly improves the performance of electric vehicles. Smart electric vehicles not only have longer driving mileage, but also have more intelligent driving assistance systems. By integrating navigation, automatic driving, remote control and other functions, smart electric vehicles provide users with a more convenient and safe travel experience. At the same time, smart electric vehicles also have the characteristics of energy saving and emission reduction, which is in line with the pursuit of green environmental protection in modern society. However, currently smart electric vehicles are not equipped with equipment to control the speed of the electric vehicle. There is only an alarm prompt when the speed of the electric vehicle exceeds the specified speed, so there is a safety hazard. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a method and system for controlling the speed of an electric vehicle based on remote communication, which has the advantages of accurately controlling the upper limit of the speed of the electric vehicle according to actual road conditions, and solves the above-mentioned technical problems.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a control system for electric vehicle speed based on remote communication, comprising a road data collection module, an emergency data collection module, an electric vehicle speed control module, an electric vehicle speed upload module and an electric vehicle speed warning module; The road data collection module is used to collect road condition data around the road. The road condition data around the road includes road congestion, road bumps, road speed limits, and whether there are special areas around the road. The special areas include schools, hospitals, and municipal units. The road data collection module collects the collected data to form a road data set. And send it to the electric vehicle speed control module and the electric vehicle speed warning module; The emergency data collection module is used to collect whether an emergency occurs on the current road, and collect the emergency data set Send to the electric vehicle speed control module and the electric vehicle speed warning module; The electric vehicle speed control module adjusts the speed of the electric vehicle after receiving the data from the road data collection module and the emergency data collection module respectively. The electric vehicle speed control module reads the current speed of the electric vehicle and sends the speed of the electric vehicle to the electric vehicle speed upload module; The electric vehicle speed upload module sends the uploaded electric vehicle speed to the remote control terminal to monitor the electric vehicle speed, and sends the data to the electric vehicle speed warning module when the electric vehicle speed does not match the electric vehicle speed control module; The electric vehicle speed warning module includes a conventional warning unit and an unconventional warning unit. The conventional warning unit is used to warn when the electric vehicle speed does not match the electric vehicle speed control module, and the unconventional warning unit is used to warn the driver when the emergency data collection module sends an emergency.

[0005] As the preferred technical solution of the present invention, the road data collection module obtains the real-time geographic location of the electric vehicle through the GPS positioning component on the electric vehicle, and uploads the positioning data of the GPS positioning component to the cloud map, compares and stores the road congestion, road bumps, road speed limits and whether there are special areas around the road 500m forward and 250m of all branches of the current road in the road data set. When an electric vehicle changes its road, it re-acquires the road congestion, road bumps, road speed limits, and whether there are special areas around the road at 500m in the forward direction of the new positioning road and 250m in all branches of the new road. At the same time, the road data collection module collects data at the same distance. Then do the same update.

[0006] As a preferred technical solution of the present invention, the road data set The specific expression is as follows: in, Indicates A road dataset of roads, Indicates The road congestion situation of the roads, Indicates The road bumps of the road, Indicates the corresponding congestion level, Indicates the corresponding turbulence level, Indicates the number of special areas, Indicates The speed limit of the road, Indicates The maximum speed allowed on the road, Indicates Special area of ​​the road.

[0007] As a preferred technical solution of the present invention, the congestion level The expression is as follows: in, It reflects the relationship between the current number of people on the road and the theoretical number of people it can carry. Indicates The actual vehicles on the road, Indicates the corresponding current theoretical load-bearing vehicle.

[0008] As a preferred technical solution of the present invention, the turbulence level The expression is as follows: in, Indicates The road smoothness of the road, ~ Respectively represent three flatness indicators from low to high.

[0009] As a preferred technical solution of the present invention, the emergency situations include natural disasters, traffic accidents and road control situations, and constitute an emergency data set , the specific expression is as follows: in, Indicates Natural disasters on the roads, represents the natural disaster deceleration weight, Indicates Traffic accidents on the roads, Indicates The road control situation of the road represents the traffic accident deceleration weight, Indicates the road control deceleration weight.

[0010] As a preferred technical solution of the present invention, the electric vehicle speed control module receives the road data set and emergency data sets The upper limit of the electric vehicle speed is calculated, and the specific expression is as follows: in, Indicates the upper limit of the speed of electric vehicles. Indicates The maximum speed allowed on the road, Indicates the control speed, Indicates the corresponding congestion level, Indicates the corresponding turbulence level, Indicates the number of special areas, represents the balance factor, Represents emergency related functions.

[0011] As a preferred technical solution of the present invention, the emergency-related function The expression is as follows: in, Indicates infinity.

[0012] As a preferred technical solution of the present invention, the conventional warning unit When the alarm is sounded, the unconventional early warning unit That is, when there is a natural disaster, an early warning is issued, and at this time .

[0013] The present invention also provides a method for controlling the speed of an electric vehicle based on remote communication, comprising the following steps: S1. The road data collection module collects the road condition data around the road in real time to form a road data set The emergency data collection module collects whether an emergency occurs on the current road and collects the emergency data set. ; S2, the electric vehicle speed control module controls the upper speed limit of the electric vehicle in combination with the data in the road data collection module and the emergency data collection module; S3, the electric vehicle speed warning module compares the electric vehicle speed uploaded by the electric vehicle speed upload module with the speed in the electric vehicle speed control module. When the actual speed is greater than the upper limit of the electric vehicle's driving speed and issuing early warnings when natural disasters occur.

[0014] Compared with the prior art, the present invention provides a method and system for controlling the speed of an electric vehicle based on remote communication, which has the following beneficial effects: 1. The present invention obtains the real-time geographic location of the electric vehicle through the GPS positioning component on the electric vehicle, and uploads the positioning data of the GPS positioning component to the cloud map for comparison and the road congestion, road bumps, road speed limit and whether there are special areas around the road 500m forward of the current positioning road and 250m of all branches of the current road are compared to limit the upper speed limit of the electric vehicle, thereby ensuring the driving safety of the driver.

[0015] 2. When the electric vehicle changes its road, the present invention re-acquires the road congestion, road bumps, road speed limit and whether there are special areas around the road at 500m in the forward direction of the new positioning road and 250m in all branches of the new road. At the same time, the road data collection module collects data at the same distance. The same update is then performed to ensure that if the data is not updated in time after the turn, the road is judged based on the situation before the turn. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the system of the present invention; Figure 2 It is a schematic diagram of the process of the present invention. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-2 , the present invention provides the following technical solutions: a control system for electric vehicle speed based on remote communication, comprising a road data collection module, an emergency data collection module, an electric vehicle speed control module, an electric vehicle speed upload module and an electric vehicle speed warning module; The road data collection module is used to collect road condition data around the road. The road condition data around the road includes road congestion, road bumps, road speed limits, and whether there are special areas around the road. Special areas include schools, hospitals, and municipal units. The road data collection module collects the data to form a road data set. And send it to the electric vehicle speed control module and the electric vehicle speed warning module; The emergency data collection module is used to collect whether there is an emergency on the current road, and collect the emergency data set Send to the electric vehicle speed control module and the electric vehicle speed warning module; The electric vehicle speed control module adjusts the speed of the electric vehicle after receiving the data from the road data collection module and the emergency data collection module respectively. The electric vehicle speed control module reads the current speed of the electric vehicle and sends the speed of the electric vehicle to the electric vehicle speed upload module; The electric vehicle speed upload module sends the uploaded electric vehicle speed to the remote control terminal to monitor the electric vehicle speed. When the electric vehicle speed does not match the electric vehicle speed control module, the data is sent to the electric vehicle speed warning module; The electric vehicle speed warning module includes a conventional warning unit and an unconventional warning unit. The conventional warning unit is used to warn when the electric vehicle speed does not match the electric vehicle speed control module. The unconventional warning unit is used to warn the driver when the emergency data collection module sends an emergency.

[0019] The road data collection module obtains the real-time geographic location of the electric vehicle through the GPS positioning component on the electric vehicle, and uploads the positioning data of the GPS positioning component to the cloud map for comparison and stores the road congestion, road bumps, road speed limits and whether there are special areas around the road 500m forward and 250m of all branches of the current road into the road data set. When an electric vehicle changes its road, it re-acquires the road congestion, road bumps, road speed limits, and whether there are special areas around the road at 500m in the forward direction of the new positioning road and 250m in all branches of the new road. At the same time, the road data collection module collects data at the same distance. The same update is then performed to ensure that if the data is not updated in time after the turn, the road is judged based on the situation before the turn.

[0020] Road dataset The specific expression is as follows: In the formula, Indicates A road dataset of roads, Indicates The road congestion situation of the roads, Indicates The road bumps of the road, Indicates the corresponding congestion level, Indicates the corresponding turbulence level, Indicates the number of special areas, Indicates The speed limit of the road, Indicates The maximum speed allowed on the road, Indicates Special area of ​​the road.

[0021] Congestion level and turbulence level The expression is as follows: In the formula, Indicates The road smoothness of the road, ~ Represents three flatness indicators from low to high, It reflects the relationship between the current number of people on the road and the theoretical number of people it can carry. Indicates The actual vehicles on the road, Indicates the corresponding current theoretical load-bearing vehicle.

[0022] Emergency situations include natural disasters, traffic accidents, and road control situations, and constitute the emergency data set , the specific expression is as follows: In the formula, Indicates Natural disasters on the roads, represents the natural disaster deceleration weight, Indicates Traffic accidents on the roads, Indicates The road control situation of the road represents the traffic accident deceleration weight, Indicates the road control deceleration weight.

[0023] The electric vehicle speed control module receives the road data set and emergency data sets The upper limit of the electric vehicle speed is calculated, and the specific expression is as follows: In the formula, Indicates the upper limit of the speed of electric vehicles. Indicates The maximum speed allowed on the road, Indicates the control speed, which is used to ensure the speed limit of electric vehicles. Indicates the corresponding congestion level, Indicates the corresponding turbulence level, Indicates the number of special areas, represents the balance factor, Indicates emergency-related functions. The emergency-related functions here are only called when an emergency occurs. If there is no emergency, That is, it has no impact on the overall speed.

[0024] Emergency related functions The expression is as follows: In the formula, It represents infinity. When a natural disaster occurs, there will be a greater risk if you continue to drive along the current road. Therefore, a very large number is set to ensure that electric vehicles cannot drive along the current road. When a traffic accident occurs, obstacles on the ground will affect driving. When the road is controlled, the traffic police will manage the road at the intersection and drive in an orderly manner, so a slower speed is required.

[0025] Conventional warning unit when the actual vehicle speed is greater than When the alarm is sounded, the unconventional early warning unit That is, when there is a natural disaster, an early warning is issued, and at this time .

[0026] The present invention also provides a method for controlling the speed of an electric vehicle based on remote communication, comprising the following steps: S1. The road data collection module collects the road condition data around the road in real time to form a road data set The emergency data collection module collects whether an emergency occurs on the current road and collects the emergency data set. ; S2, the electric vehicle speed control module controls the upper speed limit of the electric vehicle in combination with the data in the road data collection module and the emergency data collection module; S3, the electric vehicle speed warning module compares the electric vehicle speed uploaded by the electric vehicle speed upload module with the speed in the electric vehicle speed control module. When the actual speed is greater than the upper limit of the electric vehicle's driving speed and issuing early warnings when natural disasters occur.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A control system for electric vehicle speed based on remote communication, characterized in that: It includes a road data collection module, an emergency data collection module, an electric vehicle speed control module, an electric vehicle speed upload module and an electric vehicle speed warning module; The road data collection module is used to collect road condition data around the road. The road condition data around the road includes road congestion, road bumps, road speed limits, and whether there are special areas around the road. The special areas include schools, hospitals, and municipal units. The road data collection module collects the collected data to form a road data set. And send it to the electric vehicle speed control module and the electric vehicle speed warning module; The emergency data collection module is used to collect whether an emergency occurs on the current road, and collect the emergency data set Send to the electric vehicle speed control module and the electric vehicle speed warning module; The electric vehicle speed control module adjusts the speed of the electric vehicle after receiving the data from the road data collection module and the emergency data collection module respectively. The electric vehicle speed control module reads the current speed of the electric vehicle and sends the speed of the electric vehicle to the electric vehicle speed upload module; The electric vehicle speed upload module sends the uploaded electric vehicle speed to the remote control terminal to monitor the electric vehicle speed, and sends the data to the electric vehicle speed warning module when the electric vehicle speed does not match the electric vehicle speed control module; The electric vehicle speed warning module includes a conventional warning unit and an unconventional warning unit. The conventional warning unit is used to warn when the electric vehicle speed does not match the electric vehicle speed control module, and the unconventional warning unit is used to warn the driver when the emergency data collection module sends an emergency.

2. The electric vehicle speed control system based on remote communication according to claim 1, characterized in that: The road data collection module obtains the real-time geographic location of the electric vehicle through the GPS positioning component on the electric vehicle, and uploads the positioning data of the GPS positioning component to the cloud map for comparison and stores the road congestion, road bumps, road speed limits and whether there are special areas around the road 500m forward and 250m of all branches of the current road into the road data set. When an electric vehicle changes its road, it re-acquires the road congestion, road bumps, road speed limits, and whether there are special areas around the road at 500m in the forward direction of the new positioning road and 250m in all branches of the new road. At the same time, the road data collection module collects data at the same distance. Then do the same update.

3. The electric vehicle speed control system based on remote communication according to claim 2 is characterized in that: The road dataset The specific expression is as follows: ; in, Indicates A road dataset of roads, Indicates The road congestion situation of the roads, Indicates The road bumps of the road, Indicates the corresponding congestion level, Indicates the corresponding turbulence level, Indicates the number of special areas, Indicates The speed limit of the road, Indicates The maximum speed allowed on the road, Indicates Special area of ​​the road.

4. The electric vehicle speed control system based on remote communication according to claim 2, characterized in that: Congestion level The expression is as follows: ; in, It reflects the relationship between the current number of people on the road and the theoretical number of people it can carry. Indicates The actual vehicles on the road, Indicates the corresponding current theoretical carrying vehicle.

5. The electric vehicle speed control system based on remote communication according to claim 4, characterized in that: The level of turbulence The expression is as follows: ; in, Indicates The road smoothness of the road, ~ Respectively represent three flatness indicators from low to high.

6. The electric vehicle speed control system based on remote communication according to claim 1, characterized in that: The emergency situations include natural disasters, traffic accidents and road control situations, and constitute the emergency data set , the specific expression is as follows: ; in, Indicates Natural disasters on the roads, represents the natural disaster deceleration weight, Indicates Traffic accidents on the roads, Indicates The road control situation of the road represents the traffic accident deceleration weight, Indicates the road control deceleration weight.

7. The electric vehicle speed control system based on remote communication according to claim 1, characterized in that: The electric vehicle speed control module receives the road data set and emergency data sets The upper limit of the electric vehicle speed is calculated, and the specific expression is as follows: ; in, Indicates the upper limit of the speed of electric vehicles. Indicates The maximum speed allowed on the road, Indicates the control speed, Indicates the corresponding congestion level, Indicates the corresponding turbulence level, Indicates the number of special areas, represents the balance factor, Represents emergency related functions.

8. The electric vehicle speed control system based on remote communication according to claim 7, characterized in that: The emergency related functions The expression is as follows: ; in, Indicates infinity.

9. The electric vehicle speed control system based on remote communication according to claim 7, characterized in that: The conventional warning unit is When the alarm is sounded, the unconventional early warning unit That is, when there is a natural disaster, an early warning is issued, and at this time .

10. A method for controlling the speed of an electric vehicle based on remote communication, based on the control system for the speed of an electric vehicle based on remote communication according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. The road data collection module collects the road condition data around the road in real time to form a road data set The emergency data collection module collects whether an emergency occurs on the current road and collects the emergency data set. ; S2, the electric vehicle speed control module controls the upper speed limit of the electric vehicle in combination with the data in the road data collection module and the emergency data collection module; S3, the electric vehicle speed warning module compares the electric vehicle speed uploaded by the electric vehicle speed upload module with the speed in the electric vehicle speed control module. When the actual speed is greater than the upper limit of the electric vehicle's driving speed and issuing early warnings when natural disasters occur.

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