TWI866298B - Electric vehicle trip power management system and method thereof - Google Patents

Abstract

An electric vehicle trip power management system and a method thereof are provided. The method is used to manage a travel plan for an electric vehicle and includes the following steps: loading road data and destination data, obtaining the current coordinate data of the electric vehicle, and integrating the current coordinate data with the road data to generate real-time feedback data. The destination data and real-time feedback data are used to calculate the travel distance data. The actual available mileage data is calculated using the total energy data of the electric vehicle and the instantaneous power consumption data. When the actual available mileage data is less than a predetermined percentage of the travel distance data, multiple charging station coordinate data are loaded. The distance parameter between the current coordinate data and each charging station coordinate data is calculated, and at least one charging station coordinate data with a distance parameter less than the actual available mileage data is selected and added to the travel plan.

Description

Electric vehicle travel power management system and method

The present invention relates to a management system and method, and more particularly to an electric vehicle travel power management system and method.

As electric vehicles have multiple advantages such as energy saving, environmental protection, quietness, and intelligent control, and the deployment of supporting infrastructure measures in various countries (such as charging stations and power exchange policies) is becoming more and more sound, electric vehicles have gradually replaced gasoline vehicles and become the mainstream of the consumer market. Among them, in order to provide operators with better travel routes, most existing electric vehicles will provide a navigation system with a display of charging stations for operators to use.

However, the existing navigation system can only provide route planning, which causes the operator to check the remaining power of the electric vehicle before driving to know the mileage, and then enter the destination and the intermediate charging station before starting to drive. However, when the remaining power of the electric vehicle changes with the current situation (for example: climbing, strong wind speed, frequent acceleration, overheating, etc.), the operator often needs to stop at the roadside to plan the route again due to the sudden change of the remaining power. This not only causes inconvenience in use, but also easily causes mileage anxiety for the operator.

Therefore, the inventors of the present invention believe that the above defects can be improved, and have conducted intensive research and applied scientific principles to finally propose the present invention which has a reasonable design and effectively improves the above defects.

The technical problem to be solved by the present invention is to provide an electric vehicle travel power management system and method thereof in view of the deficiencies of the prior art.

The present invention discloses an electric vehicle travel power management system for managing a travel plan of an electric vehicle. The electric vehicle travel power management system comprises: a basic information module, including: a map database having road data and multiple charging station coordinate data; a positioning unit electrically coupled to the map database, the positioning unit is used to obtain a current coordinate data of the electric vehicle, and the positioning unit inputs the current coordinate data. data to the road data to generate real-time feedback data; and a route unit electrically coupled to the positioning unit, the route unit can load the real-time feedback data to calculate a trip mileage data when a destination data is input; and a planning module electrically coupled to the basic information module, the planning module comprising: a power calculation unit that can be used to be electrically coupled to a control center of the electric vehicle, the power calculation unit The control center obtains a total power data and an instantaneous power consumption data of the electric vehicle, and the power calculation unit calculates an actual available mileage data using the total power data and the instantaneous power consumption data; a detection unit is electrically coupled to the power calculation unit and the route unit, and when the detection unit detects that the actual available mileage data is less than a predetermined percentage of the journey mileage data, the detection unit issuing a charging suggestion command; and a planning unit electrically coupled to the detection unit, the map database and the positioning unit, wherein when the planning unit receives the charging suggestion command, the planning unit calculates a distance parameter between the current coordinate data and the coordinate data of each charging station, and selects a corresponding charging station coordinate data whose distance parameter is less than the actual available mileage data to be added to the journey plan.

The present invention also discloses a method for managing the electric vehicle travel power, which is used to manage a travel plan of an electric vehicle. The method comprises the following steps: loading a road data and a destination data; obtaining a current coordinate data of the electric vehicle, and integrating the current coordinate data with the road data to generate a real-time feedback data; using the destination data and the real-time feedback data to calculate a travel mileage data; The method comprises: calculating an actual available mileage data based on a total electric energy data and an instantaneous power consumption data of the electric vehicle; loading a plurality of charging station coordinate data when the actual available mileage data is less than a predetermined percentage of the journey mileage data; calculating a distance parameter between the current coordinate data and each of the charging station coordinate data; and selecting a corresponding charging station coordinate data whose distance parameter is less than the actual available mileage data and adding it to the journey plan.

In summary, the electric vehicle travel power management system and method disclosed in the embodiments of the present invention can add charging stations to the travel plan in real time through the designs of "the power calculation unit calculates an actual available mileage data using the total power data and the instantaneous power consumption data" and "the planning unit calculates a distance parameter between the current coordinate data and the coordinate data of each charging station, and selects the corresponding charging station coordinate data whose distance parameter is less than the actual available mileage data and adds them to the travel plan", thereby avoiding the operator's need for secondary manual planning and the occurrence of mileage anxiety.

To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only used for reference and description and are not used to limit the present invention.

The following is an explanation of the implementation of the "Electric Vehicle Travel Power Management System and Method" disclosed in the present invention through specific concrete embodiments. Technical personnel in this field can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed in various ways based on different viewpoints and applications without deviating from the concept of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted according to actual size. Please note in advance. The following implementation will further explain the relevant technical contents of the present invention in detail, but the disclosed contents are not intended to limit the scope of protection of the present invention.

It should be understood that, although the terms "first", "second", "third", etc. may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used in this document may include any one or more combinations of the related listed items depending on the actual situation.

In addition, in the following description, if it is indicated to refer to a specific figure or as shown in a specific figure, it is only used to emphasize that most of the related content described in the subsequent description appears in the specific figure, but it does not limit the subsequent description to only refer to the specific figure.

[First embodiment]

Referring to FIG. 1 and FIG. 2 , the present embodiment provides an electric vehicle travel power management system 100, which can be used to manage a travel plan TP of an electric vehicle 200, thereby ensuring that the driver does not need to plan charging stations during the journey after setting the destination. That is, the electric vehicle travel power management system 100 can automatically provide the most suitable charging station (i.e., the travel plan TP) during the journey based on the current status of the electric vehicle (e.g., factors that affect power such as frequent acceleration and steep slopes). As shown in FIG. 1 , the electric vehicle travel power management system 100 includes a basic information module 1 and a planning module 2 electrically coupled to the basic information module 1. Next, the components and their connection relationships of the electric vehicle travel power management system 100 are introduced below.

As shown in FIG. 1 , the basic information module 1 includes a map database 11, a positioning unit 12 electrically coupled to the map database 11, and a route unit 13 electrically coupled to the positioning unit 12. The map database 11 has road data and multiple charging station coordinate data. In this embodiment, the map database 11 can be connected to a ^Google® map database, and the road data and multiple charging station coordinate data are directly obtained from the ^Google® map database, but the present invention is not limited thereto.

In addition, the positioning unit 12 in this embodiment can be an external GPS positioning device or a system positioning device of the electric vehicle. The positioning unit 12 can be used to obtain a current coordinate data of the electric vehicle 200, and the positioning unit 12 inputs the current coordinate data to the road data to generate a real-time feedback data.

Furthermore, the route unit in this embodiment is a computing device (eg, a CPU or an MCU), and when a destination data is input into the route unit 13, the real-time feedback data can be loaded to calculate a journey mileage data.

Referring again to FIG. 1 , the planning module 2 includes a power calculation unit 21 , a detection unit 22 electrically coupled to the power calculation unit 21 and the route unit 13 , and a planning unit 23 electrically coupled to the detection unit 22 , the map database 11 and the positioning unit 12 .

The power calculation unit 21 can be used to be electrically coupled to a control center 210 of the electric vehicle 200. The power calculation unit 21 obtains a total power data and an instantaneous power consumption data of the electric vehicle 200 through the control center 210, and the power calculation unit 21 calculates an actual available mileage data using the total power data and the instantaneous power consumption data. In addition, when the detection unit 22 detects that the actual available mileage data is less than a predetermined percentage of the trip mileage data, the detection unit 22 issues a charging suggestion command to instruct the planning unit 23 to carry out the plan.

For example, if the predetermined percentage is 50%, when the detection unit 22 detects that the actual available mileage data decreases to 48 kilometers over time, but the journey mileage data is 24 kilometers, the detection unit 22 calculates 48*50%=24, thereby issuing the charging recommendation command to the planning unit 23.

It should be noted that the predetermined percentage can be adjusted according to the driver's habits and is not limited here. In addition, the method of calculating the actual available mileage data using the instantaneous power consumption data and the total power data is a prior art and is not the technical focus of the present invention, and is not specifically described here.

Furthermore, when the planning unit 23 receives the charging recommendation command, the planning unit 23 calculates a distance parameter between the current coordinate data and the coordinate data of each charging station, and selects a corresponding charging station coordinate data whose distance parameter is less than the actual available mileage data to add to the journey plan TP.

More specifically, the planning unit 23 takes the current position of the electric vehicle 200 as the starting point, and selects the coordinate data of a charging station within the radius that is less than the actual available mileage data to be added to the journey plan TP. In principle, the planning unit 23 will give priority to the coordinate data of the charging station closest to the predetermined road, rather than the charging station closest to the electric vehicle 200, to ensure driving convenience.

In addition, in order to ensure that the actual road environment factors are taken into consideration to avoid the charging station coordinate data added by the planning unit 23 being less than ideal, the planning module 2 further includes an environment sampling unit 24, and a correction unit 25 electrically coupled to the environment sampling unit 24, the positioning unit 12, the power calculation unit 21, and the planning unit 23.

Specifically, the environment sampling unit 24 is installed on the electric vehicle 200, and the environment sampling unit 24 can collect an environment data of the electric vehicle 200. In practice, the environment data includes at least one of a slope parameter (e.g., slope amplitude), a vehicle speed and time parameter (e.g., traffic jam at a specific time), a road friction parameter (e.g., fine gravel on the road reduces friction), and a wind speed and location parameter (e.g., strong wind in open areas of mountains).

Furthermore, the correction unit 25 analyzes the relationship between the environmental data and the instantaneous power consumption data and uses the current coordinate data as a recording point, so that the correction unit can generate a correction information. In other words, the correction unit 25 uses the current longitude and latitude of the electric vehicle 200 as a recording point to analyze the relationship between the current environment of the electric vehicle 200 and the instantaneous power consumption of its electric motor as the correction information. The planning unit 23 can obtain the correction information to correct the charging station coordinate data that is filtered into the trip plan TP.

Furthermore, in order to ensure that the reference accuracy of the correction information is more reliable, the planning module 2 further includes a communication unit 26, the communication unit 26 is electrically coupled to the correction unit 25, and the communication unit 26 can provide the correction unit 25 with the correction information transmitted or received by other electric vehicle travel power management systems 100 for analysis and optimization synchronization. In other words, the electric vehicle travel power management system 100 has the advantage of sharing data for analysis.

[Second embodiment]

As shown in FIG3, it is a second embodiment of the present invention. This embodiment provides an electric vehicle travel power management method. The method is applicable to the electric vehicle travel power management system 100 of the first embodiment, so please cooperate with the contents shown in FIG1 and FIG2 as appropriate. Of course, the method can also be applied to other electric vehicle travel power management systems. The electric vehicle travel power management method includes steps S101 to S113.

Step S101: Load a road data and a destination data.

Step S103: Obtain current coordinate data of the electric vehicle, and integrate the current coordinate data with the road data to generate real-time feedback data.

Step S105: Utilize the destination data and the real-time feedback data to calculate a trip mileage data.

Step S107: Calculate actual available mileage data through total electric energy data and instantaneous power consumption data of the electric vehicle.

Step S109: When the actual available mileage data is less than a predetermined percentage of the journey mileage data, loading a plurality of charging station coordinate data.

Step S111: Calculate a distance parameter between the current coordinate data and the coordinate data of each charging station.

Step S113: Filter out the charging station coordinate data corresponding to the distance parameter that is less than the actual available mileage data and add it to the journey plan.

Preferably, the electric vehicle travel power management method further includes steps S115 to S121 after step S113.

Step S115: Collect environmental data of the electric vehicle.

Step S117: Analyze the relationship between the environmental data and the instantaneous power consumption data and use the current coordinate data as a recording point so that the correction unit can generate correction information.

Step S119: Utilize the correction information to correct the charging station coordinate data that is filtered into the journey plan.

Step S121: Send or receive the correction information of other electric vehicle travel power management systems for analysis and optimization synchronization.

[Technical Effects of the Embodiments of the Invention]

In summary, the electric vehicle travel power management system and method disclosed in the embodiments of the present invention can add charging stations to the travel plan in real time through the designs of "the power calculation unit calculates an actual available mileage data using the total power data and the instantaneous power consumption data" and "the planning unit calculates a distance parameter between the current coordinate data and the coordinate data of each charging station, and selects the corresponding charging station coordinate data whose distance parameter is less than the actual available mileage data and adds them to the travel plan", thereby avoiding the operator's need for secondary manual planning and the occurrence of mileage anxiety.

The contents disclosed above are only preferred feasible embodiments of the present invention and are not intended to limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made using the contents of the specification and drawings of the present invention are included in the scope of the patent application of the present invention.

100: Electric vehicle travel power management system

1: Basic information module

11: Image Library

12: Positioning unit

13: Route unit

2: Planning module

21: Power calculation unit

22: Detection Unit

23: Project Unit

24: Environmental sampling unit

25: Correction Unit

26: Communication unit

TP: Trip Planning

S101～S121: Steps

200: Electric car

210: Control Center

FIG1 is a circuit block diagram of an electric vehicle travel power management system according to a first embodiment of the present invention.

FIG. 2 is a schematic diagram showing a journey plan of an electric vehicle travel power management system according to the first embodiment of the present invention.

FIG3 is a schematic diagram of the step flow of the electric vehicle travel power management method according to the first embodiment of the present invention.

100: Electric vehicle travel power management system

1: Basic information module

11: Image database

12: Positioning unit

13: Route unit

2: Planning module

21: Electricity calculation unit

22: Detection unit

23: Project Unit

24: Environmental sampling unit

25: Correction unit

26: Communication unit

200: Electric car

210: Control Center

Claims (4)

An electric vehicle travel power management system is used to manage a travel plan of an electric vehicle. The electric vehicle travel power management system includes: a basic information module, including: a map database, having road data and multiple charging station coordinate data; a positioning unit, electrically coupled to the map database, the positioning unit is used to obtain a current coordinate data of the electric vehicle, and the positioning unit inputs the current coordinate data to the road data to generate a real-time feedback data; and a route unit, electrically coupled to the positioning unit, the route unit can load the real-time feedback data when a destination data is input to calculate a trip mileage data; and a planning module electrically coupled to the basic information module, the planning module comprising: a power calculation unit, which can be electrically coupled to a control center of the electric vehicle, the power calculation unit obtains a total power data and an instantaneous power consumption data of the electric vehicle through the control center, and the power calculation unit calculates an actual available mileage data using the total power data and the instantaneous power consumption data; a detection unit, electrically coupled to the power calculation unit and the route unit, when the detection unit detects that the actual available mileage data is less than the trip mileage data When the distance between the current coordinate data and the coordinate data of each charging station is less than a predetermined percentage, the detection unit issues a charging suggestion command; a planning unit electrically coupled to the detection unit, the map database and the positioning unit, when the planning unit receives the charging suggestion command, the planning unit calculates a distance parameter between the current coordinate data and the coordinate data of each charging station, and selects a corresponding charging station coordinate data whose distance parameter is less than the actual available mileage data to add to the journey plan; an environment sampling unit for installation on an electric vehicle, the environment sampling unit can collect environment data of the electric vehicle; and a repair unit The positive unit is electrically coupled to the environment sampling unit, the positioning unit and the power calculation unit. The correction unit analyzes the relationship between the environment data and the instantaneous power consumption data and uses the current coordinate data as a recording point, so that the correction unit can generate a correction information; wherein the planning unit is electrically coupled to the correction unit, and the planning unit can obtain the correction information to correct the charging station coordinate data selected into the travel plan; wherein the environment data includes at least one of a slope parameter, a vehicle speed and time parameter, a road friction parameter and a wind speed and location parameter. As in the electric vehicle travel power management system of claim 1, the planning module further includes a communication unit, the communication unit is electrically coupled to the correction unit, and the communication unit can provide the correction unit with the correction information transmitted or received by other electric vehicle travel power management systems for analysis and optimization synchronization. A method for managing the electric vehicle travel power is used to manage a travel plan of an electric vehicle. The method comprises the following steps: loading a road data and a destination data; obtaining a current coordinate data of the electric vehicle and integrating the current coordinate data with the road data to generate a real-time feedback data; using the destination data and the real-time feedback data to calculate a travel mileage data; calculating an actual available mileage data through a total power data and an instantaneous power consumption data of the electric vehicle; when the actual available mileage data is less than a predetermined percentage of the travel mileage data, loading a plurality of charging station coordinate data; calculating Calculate a distance parameter between the current coordinate data and each of the charging station coordinate data; select a corresponding charging station coordinate data whose distance parameter is less than the actual available mileage data and add it to the journey plan; collect environmental data of the electric vehicle; analyze the relationship between the environmental data and the instantaneous power consumption data and use the current coordinate data as a recording point to generate correction information; and use the correction information to correct the charging station coordinate data selected into the journey plan; wherein the environmental data includes at least one of a slope parameter, a vehicle speed and time parameter, a road friction parameter, and a wind speed and location parameter. As in claim 3, the electric vehicle travel power management method further comprises the following steps: transmitting or receiving the correction information of other electric vehicle travel power management systems for analysis and optimization synchronization.

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