CN114683907A - Electric tractor and charging management method and charging management device thereof - Google Patents
Electric tractor and charging management method and charging management device thereof Download PDFInfo
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- CN114683907A CN114683907A CN202210228771.0A CN202210228771A CN114683907A CN 114683907 A CN114683907 A CN 114683907A CN 202210228771 A CN202210228771 A CN 202210228771A CN 114683907 A CN114683907 A CN 114683907A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/68—Off-site monitoring or control, e.g. remote control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3453—Special cost functions, i.e. other than distance or default speed limit of road segments
- G01C21/3469—Fuel consumption; Energy use; Emission aspects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3453—Special cost functions, i.e. other than distance or default speed limit of road segments
- G01C21/3476—Special cost functions, i.e. other than distance or default speed limit of road segments using point of interest [POI] information, e.g. a route passing visible POIs
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3679—Retrieval, searching and output of POI information, e.g. hotels, restaurants, shops, filling stations, parking facilities
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3697—Output of additional, non-guidance related information, e.g. low fuel level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The invention relates to an electric tractor, a charging management method and a charging management device thereof, wherein the management method comprises the following steps: acquiring a driving path of the electric tractor; acquiring charging pile information in each charging station in a driving path; determining a target charging pile according to the charging pile information; and sending a reservation instruction to the target charging pile, wherein the reservation instruction is used for enabling the target charging pile to be in an occupied state. According to the charging management method, the driver can determine the specific charging time and the specific charging place by sending the reservation instruction, so that a planned first transportation task can be conveniently executed, and the situation that the driver queues up repeatedly with other persons in the reservation time period is avoided, so that the situation that a plurality of tractors queue up for the same charging pile in the same time period is avoided, the total charging time is shortened, the transportation efficiency of the tractors is greatly improved, and the transportation cost is reduced.
Description
Technical Field
The invention relates to the technical field of electric vehicle charging, in particular to an electric tractor, a charging management method and a charging management device thereof.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
The tractor has higher requirement on the transportation efficiency, and the charging time of the pure electric tractor has the greatest influence on the transportation efficiency, so that the charging efficiency of the vehicle needs to be continuously optimized, the transportation efficiency is improved, and the transportation cost is reduced. Because the electric pile quantity of filling in the present stage is limited, the tractor navigating mate can't acquire accurate electric pile guide information that fills, leads to the part to fill electric pile idle, and the part fills electric pile and appears the phenomenon that a plurality of tractors were queued up to charge, and it is longer to lead to charging total time consumption, and this must reduce the conveying efficiency of tractor by a wide margin, improves cost of transportation.
Disclosure of Invention
The invention aims to at least solve the problem that the charging total time consumption is long due to the fact that a plurality of tractors queue for charging in part of charging piles.
The purpose is realized by the following technical scheme:
in a technical scheme of a first aspect of the present invention, a charging management method for an electric tractor is provided, where the charging management method includes: acquiring a driving path of the electric tractor; acquiring charging pile information in each charging station in the driving path; determining a target charging pile according to the charging pile information; and sending a reservation instruction to the target charging pile, wherein the reservation instruction is used for enabling the target charging pile to be in an occupied state.
According to the charging management method of the electric tractor, the information of each charging pile in each charging station in the driving path can be known through the acquired charging pile information in each charging station, such as whether the charging pile is in a use state or not, an appropriate charging pile can be selected as a target charging pile according to the charging pile information, and the target charging pile is made to be in an occupied state by sending a reservation instruction to the target charging pile. On one hand, the reservation instruction enables the electric traction vehicle to be charged in the reservation time period, so that a driver can determine the specific charging time and charging place, the transportation task can be executed in a planned way, and the transportation efficiency is improved; on the other hand, the reservation instruction makes the target charging pile present the occupation state in the reservation time quantum, makes other personnel also can know the occupation state of target charging pile in the reservation time quantum, avoids the condition of repeated queuing with other personnel in this reservation time quantum to avoided the condition that a plurality of tractors queued in same time quantum to same charging pile, shortened the total consuming time of charging, improved the conveying efficiency of tractor by a wide margin, reduced the cost of transportation.
In addition, the charging management method of the electric traction vehicle according to the present invention may further have the following additional technical features:
in some embodiments of the invention, the charging pile information comprises: the occupation state information of the charging pile and the path mileage information from the electric tractor to each charging station; the determining the target charging pile according to the charging pile information specifically comprises: judging whether each charging station is provided with a charging pile in an unoccupied state; if so, determining the charging pile in the unoccupied state as a pre-selection charging pile; if not, determining that the charging pile in the occupied state is a pre-selection charging pile; and receiving selection instruction information and taking the pre-selection charging pile specified by the selection instruction information as the target charging pile.
In some embodiments of the present invention, the determining that the charging pile in the unoccupied state is the pre-selection charging pile specifically includes: acquiring path mileage information from an electric tractor to each charging station with a charging pile in an unoccupied state; sorting the route mileage corresponding to the charging station from big to small; and determining a charging pile in an unoccupied state in the charging stations in a first preset ranking as a pre-selection charging pile, or determining a charging pile in an unoccupied state in the charging with the maximum path mileage as a pre-selection charging pile.
In some embodiments of the present invention, the charging pile information further includes: queuing time and charging time; the step of determining that the charging pile in the occupied state is a pre-selection charging pile specifically comprises the following steps: acquiring queuing time and charging time of charging piles in each charging station; sorting the sum of the queuing time length corresponding to the charging station and the charging time from small to large; and determining the charging piles in the occupied state in the second preset ranking as pre-selection charging piles, or determining the pre-selection charging pile with the minimum sum of queuing time and charging time as the target charging pile.
In some embodiments of the present invention, before acquiring the driving path of the electric traction vehicle, the method further includes: acquiring the residual electric quantity of a battery of the electric tractor; and judging whether the residual electric quantity is lower than a first preset value or not.
In some embodiments of the present invention, acquiring the driving path of the electric tractor specifically includes: acquiring the current position and the final destination of the electric tractor; obtaining a theoretical path according to the current position and the final destination; acquiring the actual endurance mileage of the electric tractor; and determining the driving path according to the current position, the theoretical path and the actual endurance mileage.
In some embodiments of the present invention, the obtaining the actual driving range of the electric tractor specifically includes: acquiring the residual capacity of a battery of the electric tractor and the average speed of the electric tractor; acquiring theoretical endurance mileage according to the residual electric quantity and the average speed; acquiring road condition information of the driving path and historical data of the driving path of the similar vehicle; and determining the actual endurance mileage according to the theoretical endurance mileage, the road condition information and the historical data.
In some embodiments of the invention, the historical data comprises: the time duration of the driving path of the similar vehicles; and/or energy consumption information of the driving path of the similar vehicles.
A second aspect of the present invention provides a charging management device for an electric tractor, which is used to implement the charging management method for an electric tractor in the first aspect, and the charging management device includes: the vehicle-mounted navigation device is used for acquiring a driving path of the electric tractor; vehicle-mounted intelligent system, with big data platform communication connection, vehicle-mounted intelligent system includes: the acquisition unit is used for acquiring charging pile information in each charging station in the driving path; the judging unit is used for determining a target charging pile according to the charging pile information; the instruction sending unit is used for sending a reservation instruction to the target charging pile; the reservation instruction is used for enabling the target charging pile to be in an occupied state.
According to the charging management device of the electric tractor provided by the second aspect of the invention, the obtaining unit can obtain the information of the charging piles in each charging station, so that the information of each charging pile in each charging station in the route of the electric tractor can be known, such as whether the charging pile is in use or not. The judging unit can select proper charging piles as target charging piles according to the information of the charging piles, and sends out reservation instructions to the target charging piles through the instruction sending unit, so that the target charging piles are in an occupied state, on one hand, charging of the electric traction vehicle in a reservation time period can be determined, and a driver can determine specific charging time and charging place, so that a transportation task can be executed in a planned way, and the transportation efficiency is improved; on the other hand, the reservation instruction makes the target charging pile present the occupation state in the reservation time quantum, makes other personnel also can know the occupation state of target charging pile in the reservation time quantum, avoids the condition of repeated queuing with other personnel in this reservation time quantum to avoided the condition that a plurality of tractors queued in same time quantum to same charging pile, shortened the total consuming time of charging, improved the conveying efficiency of tractor by a wide margin, reduced the cost of transportation.
In some embodiments of the invention, the vehicle-mounted intelligent system further comprises: the display unit is used for displaying the pre-selection charging pile; and the selection instruction receiving unit is used for receiving selection instruction information and feeding back the selection instruction information to the instruction sending unit.
The third aspect of the present invention provides an electric traction vehicle, which includes the charging management device in the second aspect.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:
fig. 1 schematically shows a flow diagram of a charge management method of an electric traction vehicle according to an embodiment of the invention;
fig. 2 schematically shows a flow diagram of a charge management method of an electric traction vehicle according to an embodiment of the invention;
fig. 3 schematically shows a flow diagram of a charge management method of an electric traction vehicle according to an embodiment of the invention;
fig. 4 schematically shows a schematic view of a charge management device of an electric traction vehicle according to an embodiment of the invention;
fig. 5 schematically shows a schematic view of a charge management device of an electric traction vehicle according to an embodiment of the present invention.
The reference numbers are as follows:
100-vehicle navigation device, 200-vehicle intelligent system, 201-acquisition unit, 202-judgment unit, 203-instruction sending unit, 204-display unit, 205-selection instruction receiving unit.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. This spatially relative term is intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1, according to an embodiment of the present invention, a charging management method for an electric tractor is provided, including the following steps:
step S101: acquiring a driving path of the electric tractor;
step S102: acquiring charging pile information in each charging station in a driving path;
step S103: determining a target charging pile according to the charging pile information;
step S104: and sending a reservation instruction to the target charging pile.
In this embodiment, the driving route is road information to be traveled by the electric tractor, for example, which driving route is selected by the electric tractor, and information such as a distance that can be traveled on the driving route. Through the driving path, specific information of the charging stations located beside or near the driving path, such as location information of the charging stations, charging pile number information in the charging stations, and use states of the charging piles, can be obtained. According to the charging pile information in each charging station, the information of each charging pile in each charging station in the route of the vehicle, such as whether the charging pile is in a use state or not, is known, an appropriate charging pile is selected as a target charging pile according to the charging pile information, and a reservation instruction is sent to the target charging pile to enable the target charging pile to be in an occupied state; on the other hand, the reservation instruction makes the target charging pile present the occupation state in the reservation time quantum, makes other personnel also can know the occupation state of target charging pile in the reservation time quantum, avoids the condition of repeated queuing with other personnel in this reservation time quantum to avoided the condition that a plurality of tractors queued in same time quantum to same charging pile, shortened the total consuming time of charging, improved the conveying efficiency of tractor by a wide margin, reduced the cost of transportation.
In an exemplary embodiment, as shown in fig. 2, acquiring the driving path of the electric tractor specifically includes the following steps:
step S201: acquiring the current position and the final destination of the electric tractor;
step S202: obtaining a theoretical path according to the current position and the final destination;
step S203: acquiring the residual capacity of a battery of the electric tractor and the average speed of the electric tractor;
step S204: acquiring theoretical endurance mileage according to the residual electric quantity and the average speed;
step S205: acquiring road condition information of a driving path and historical data of the driving path of the similar vehicle;
step S206: determining an actual endurance mileage according to the theoretical endurance mileage, the road condition information and the historical data;
step S207: and determining a driving path according to the current position, the theoretical path and the actual endurance mileage.
In the present embodiment, in step S201, the current position of the electric tractor can be precisely located by using the GPS, and the final destination can be a terminal of the transportation task. In step S202, the current position and the final destination of the electric tractor are acquired to be able to plan the driving route, and then the road route to be traveled and the route to be traveled to the final destination are selected from the current position to be the theoretical route. Understandably, the electric traction vehicle has a limited driving range because of the limited storage capacity of the battery, and if the total mileage of the theoretical route exceeds the rated driving range of the electric traction vehicle, the electric traction vehicle needs to be charged halfway along the theoretical route. Therefore, in step S203 and step S204, by acquiring the remaining capacity of the battery of the electric tractor and the average speed of the electric tractor, the theoretical driving range of the electric tractor can be estimated according to the remaining capacity and the average speed, the electric tractor is affected by the road condition information and the environmental information, and the actual driving range of the electric tractor is different from the theoretical driving range. In detail, the road condition information includes a slope, a wind direction, a wind speed, an air temperature, and the like, and the electric tractor is influenced by the above factors, and when the road condition information is different, an actual driving mileage of the electric tractor changes accordingly. For example, if the road condition is a continuous uphill or a headwind, the energy consumption of the electric tractor in the mobile unit distance is increased, and the actual driving range is reduced relative to the theoretical driving range, so in step S205, the theoretical driving range may be modified by acquiring the road condition information to obtain data closer to the actual driving range. In addition, historical data of the driving paths of the similar vehicles can be obtained through the big data platform, the historical data comprises the time duration of the driving paths of the similar vehicles, the energy consumption information of the driving paths of the similar vehicles and the like, so that more objective reference data can be obtained in an auxiliary mode, and the historical data is used for correcting the theoretical driving mileage to obtain data of the actual driving mileage. So as to obtain more accurate driving route information, thereby obtain more accurate information that can approach each charging station, with the further electric pile information that fills in each charging station that obtains.
In one exemplary embodiment, the charging pile information includes: the method comprises the following steps of charging pile occupation state information, path mileage information from an electric tractor to each charging station, queuing time and charging time. As shown in fig. 3, determining the target charging pile according to the charging pile information specifically includes the following steps:
step S301: judging whether each charging station has a charging pile in an unoccupied state, if so, executing a step S302, otherwise, executing a step S305;
step S302: acquiring path mileage information from an electric tractor to each charging station with a charging pile in an unoccupied state;
step S303: sorting the route mileage corresponding to the charging station from big to small;
step S304: determining a charging pile in an unoccupied state in charging stations in a first preset ranking as a pre-selection charging pile, or determining a charging pile in an unoccupied state in charging with the maximum path mileage as a pre-selection charging pile;
step S305: acquiring queuing time and charging time of charging piles in each charging station;
step S306: sorting the sum of the queuing time length corresponding to the charging station and the charging time from small to large;
step S307: determining charging piles in an occupied state in a second preset ranking as pre-selection charging piles, or determining the pre-selection charging pile with the minimum sum of queuing time and charging time as the pre-selection charging pile;
step S308: and receiving selection instruction information, and taking the pre-selection charging pile specified by the selection instruction information as a target charging pile.
In this embodiment, when there are a plurality of charging stations in the driving route, it is first determined whether each charging station has a charging pile in an unoccupied state, and if so, the charging pile having the unoccupied state is selected as the target charging pile in a limited manner. Specifically, when one charging pile of the plurality of charging stations and only one charging station has an unoccupied charging pile, the charging pile in the unoccupied charging pile is preferentially selected as the target charging pile with the charging station as the destination. When the plurality of charging stations are provided with the charging piles in an unoccupied state, the path mileage from the current position of the electric tractor to each charging station is sequenced according to the total length of the path mileage corresponding to each charging station from large to small, the greater the length of the path mileage, the higher the ranking is, the charging piles of each charging station entering the charging stations in the first preset ranking are used as pre-selection charging piles, the plurality of pre-selection charging piles are sequenced in sequence according to the size of the path mileage, and when selection instruction information is received, the pre-selection charging pile specified by the selection instruction information is used as a target charging pile. In addition, the charging station with longer route mileage is selected as a charging place, so that the current residual electric quantity of the battery of the electric tractor can be fully consumed, the charging period is prolonged, the charging times are reduced, the charging efficiency in the total driving mileage is improved on the whole, and the transportation time is saved. A plurality of charging stations which can be selected by a driver can be obtained by setting a first prearranged name, and a flexible choice room is provided for the driver. In this embodiment, the first preset ranking may be flexibly set according to the number of selectable charging stations, for example, when the number of charging stations of a charging pile having an unoccupied state is 10, the first preset ranking may be set to the top 5, or the top 3, and the like. In other embodiments, a preselected charging pile in the charging station with the largest route mileage can be determined as a target charging pile, so that the current battery residual capacity of the electric tractor is consumed to the greatest extent, and the purposes of prolonging the charging cycle time, reducing the charging times and saving the transportation time are achieved.
If each charging station does not have a charging pile in an unoccupied state, the total charging time of each charging pile in each charging station needs to be evaluated, and specifically, the total charging time of each charging pile is the sum of the queuing time and the charging time. The queuing time is specifically the sum of the time consumed in the running process from the current moment to the time when the electric tractor arrives at the charging pile and the time consumed in the running process from the time after the electric tractor arrives at the charging pile to the time when the electric tractor starts to charge after the occupation state of the charging pile is released. The charging time is a time period from the time when the electric tractor starts to charge to the time when the charging is completed. Therefore, a shorter time of the total charging time period indicates a higher efficiency of charging. And (3) sequencing the sum of the queuing time and the charging time (namely the total charging time) from small to large, determining the charging piles in the occupied state in the charging stations in the second preset ranking as preselected charging piles, and when receiving the selection instruction information, taking the preselected charging piles specified by the selection instruction information as target charging piles. According to the charging pile, the charging pile in the occupied state with the shorter total charging time is preferentially selected as the target charging pile, so that the time consumed by queuing and charging is reduced, and the charging efficiency is improved. A plurality of charging stations which can be selected by the driver can be obtained by setting the second pre-ranking, and a flexible choice room is provided for the driver. In this embodiment, the second preset ranking may be flexibly set according to the number of selectable charging stations, for example, when the number of charging piles is 8, the second preset ranking may be set to the top 4, or the top 3, and the like. In other embodiments, the preselected charging pile with the smallest sum of the queuing time and the charging time can be determined as the target charging pile, so that the charging queuing time of the electric tractor is reduced to the greatest extent, and the purpose of saving the transportation time is achieved.
In an exemplary embodiment, before acquiring the driving path of the electric tractor in step S101, the following steps are further included:
acquiring the residual electric quantity of a battery of the electric tractor;
and judging whether the residual electric quantity is lower than a first preset value or not.
In this embodiment, if the remaining power is lower than the first preset value, the step of obtaining the driving path of the electric tractor is performed. And determining whether the electric tractor needs to be charged or not by judging whether the residual electric quantity is lower than a first preset value or not. For example, the first preset value is set to be 50% of the rated charge capacity of the battery of the electric tractor, and when the remaining capacity is lower than 50% of the rated charge capacity, it indicates that the electric tractor has the charging requirement, so that the process steps of charging management of the electric tractor are started, and charging pile recommendation and guidance are provided for a driver, so as to achieve the purpose of reminding charging immediately. Understandably, the first preset value may be set to different values, for example, 40%, 30%, 20%, etc. of the rated charge capacity, depending on the magnitude of the rated charge capacity of the battery of different vehicles.
According to an embodiment of the present invention, there is also provided a charging management device for an electric traction vehicle, as shown in fig. 4, the charging management device including: the vehicle-mounted navigation device 100 and the vehicle-mounted intelligent system 200, specifically, the vehicle-mounted navigation device 100 comprises a vehicle-mounted map system and a vehicle-mounted GPS. The vehicle-mounted GPS is used for acquiring the current position and the average speed per hour of the electric tractor, and the vehicle-mounted map system is used for receiving the current position and the final destination and determining a driving path according to the current position and the final destination. The vehicle-mounted intelligent system 200 includes an obtaining unit 201, a determining unit 202, and an instruction sending unit 203, where the obtaining unit 201 can obtain charging pile information in each charging station through the big data platform 300, and the charging pile information specifically includes: the charging system comprises charging pile occupation state information, electric tractor to charging station path mileage information, queuing time, charging time and other information. The determining unit 202 may select an appropriate charging pile as a target charging pile according to the charging pile information, and send a reservation instruction to the target charging pile through the instruction sending unit 203, so that the target charging pile is in an occupied state, for example, the instruction sending unit 203 realizes reservation charging through means such as scanning license plate information. On one hand, the electric traction vehicle can be charged in the reserved time period by sending the reservation instruction, and a driver can determine the specific charging time and charging place so as to perform a transportation task in a planned way and improve the transportation efficiency; on the other hand, the reservation instruction makes the target charging pile present the occupation state in the reservation time quantum, makes other personnel also can know the occupation state of target charging pile in the reservation time quantum, avoids the condition of repeated queuing with other personnel in this reservation time quantum to avoided the condition that a plurality of tractors queued in same time quantum to same charging pile, shortened the total consuming time of charging, improved the conveying efficiency of tractor by a wide margin, reduced the cost of transportation.
In some embodiments of the present invention, as shown in fig. 5, the in-vehicle intelligent system 200 further includes: the device comprises a display unit 204 and a selection instruction receiving unit 205, wherein the display unit 204 is used for displaying the pre-selection charging piles, and the selection instruction receiving unit 205 is used for receiving selection instruction information and feeding the selection instruction information back to the instruction sending unit 203. In detail, the display unit 204 may be an on-board screen display, and display the pre-selection charging pile information through the screen display, so that the driver can clearly know a plurality of preferred options, and select a charging pile meeting expectations as a target charging pile from among a plurality of pre-charging piles. The selection instruction receiving unit 205 may be a key electrically connected to the instruction transmitting unit 203 and the display unit 204, and the instruction for selecting the pre-selected charging pile is transmitted through the key, and after receiving the selection instruction information, the instruction transmitting unit 203 transmits a reservation instruction to the selected target charging pile.
According to an embodiment of the present invention, an electric traction vehicle is further provided, where the electric traction vehicle includes the charging management device in the second aspect.
According to the electric tractor, the vehicle information of the electric tractor and the charging pile information are fully fused through the cooperative matching of the battery system, the vehicle-mounted navigation device, the vehicle-mounted intelligent system and the big data platform (namely the charging station networking system), the screening and recommendation of the optimal charging pile are realized, the optimal charging measurement is obtained by taking the minimum charging time required by the unit electric quantity as a target, a driver can make various selections according to the driving state, the charging efficiency is improved through the reservation function, the purpose of saving charging time is achieved, and the higher charging efficiency and the higher transportation efficiency are realized.
While the invention has been described with reference to specific preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. A charging management method of an electric tractor is characterized by comprising the following steps:
acquiring a driving path of the electric tractor;
acquiring charging pile information of each charging station in the driving path;
determining a target charging pile according to the charging pile information;
and sending a reservation instruction to the target charging pile, wherein the reservation instruction is used for enabling the target charging pile to be in an occupied state.
2. The charge management method of an electric tractor according to claim 1,
the charging pile information includes: the occupation state information of the charging pile and the path mileage information from the electric tractor to each charging station;
the determining the target charging pile according to the charging pile information specifically comprises:
judging whether each charging station is provided with a charging pile in an unoccupied state;
if so, determining the charging pile in the unoccupied state as a pre-selection charging pile;
if not, determining that the charging pile in the occupied state is a pre-selection charging pile;
and receiving selection instruction information and taking the pre-selection charging pile specified by the selection instruction information as the target charging pile.
3. The charge management method of an electric tractor according to claim 2,
the determining that the charging pile in the unoccupied state is the pre-selection charging pile specifically comprises:
acquiring path mileage information from an electric tractor to each charging station with a charging pile in an unoccupied state;
sorting the route mileage corresponding to the charging station from big to small;
and determining a charging pile in an unoccupied state in the charging stations in a first preset ranking as the pre-selection charging pile, or determining a charging pile in an unoccupied state in the charging with the maximum path mileage as the pre-selection charging pile.
4. The charge management method of an electric tractor according to claim 2,
the charging pile information further includes: queuing time and charging time;
the step of determining that the charging pile in the occupied state is a pre-selection charging pile specifically comprises the following steps:
acquiring queuing time and charging time of charging piles in each charging station;
sorting the sum of the queuing time length corresponding to the charging station and the charging time from small to large;
and determining the charging piles in the occupied state in the second preset ranking as the pre-selection charging piles, or determining the pre-selection charging piles with the minimum sum of queuing time and charging time as the pre-selection charging piles.
5. The method for managing charging of an electric tractor according to claim 1, further comprising, before acquiring the travel path of the electric tractor:
acquiring the residual electric quantity of a battery of the electric tractor;
and judging whether the residual electric quantity is lower than a first preset value or not.
6. The charge management method of an electric tractor according to claim 1,
obtaining the driving path of the electric tractor specifically comprises:
acquiring the current position and the final destination of the electric tractor;
obtaining a theoretical path according to the current position and the final destination;
acquiring the actual endurance mileage of the electric tractor;
and determining the driving path according to the current position, the theoretical path and the actual endurance mileage.
7. The charge management method of an electric tractor according to claim 6,
acquiring the actual endurance mileage of the electric tractor specifically comprises:
acquiring the residual capacity of a battery of the electric tractor and the average speed of the electric tractor;
obtaining a theoretical endurance mileage according to the residual electric quantity and the average speed;
acquiring road condition information of the driving path and historical data of the driving path of the similar vehicle;
and determining the actual endurance mileage according to the theoretical endurance mileage, the road condition information and the historical data.
8. The charge management method of an electric tractor according to claim 7,
the historical data includes:
the time duration of the driving path of the similar vehicles; and/or
And the energy consumption information of the driving path of the similar vehicles.
9. A charge management apparatus of an electric tractor for implementing the charge management method of the electric tractor according to any one of claims 1 to 8, characterized by comprising:
the vehicle-mounted navigation device is used for acquiring a driving path of the electric tractor;
vehicle-mounted intelligent system is connected with big data platform communication, vehicle-mounted intelligent system includes: the acquisition unit is used for acquiring the charging pile information of each charging station in the driving path; the judging unit is used for determining a target charging pile according to the charging pile information; the instruction sending unit is used for sending a reservation instruction to the target charging pile;
the reservation instruction is used for enabling the target charging pile to be in an occupied state.
10. The charging management device for the electric tractor according to claim 9, wherein the on-board intelligent system further includes:
the display unit is used for displaying the pre-selection charging pile;
and the selection instruction receiving unit is used for receiving selection instruction information and feeding back the selection instruction information to the instruction sending unit.
11. An electric tractor characterized in that it has a charge management device of an electric tractor according to claim 9 or 10.
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