CN115107549A

CN115107549A - Alignment method of wireless charging device, electric vehicle and ground electromagnetic transmitting device

Info

Publication number: CN115107549A
Application number: CN202210937100.1A
Authority: CN
Inventors: 富天白; 张少帅; 袁立东; 魏宏; 范志超; 夏子阳; 李云浩; 王贺; 张文卿
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2022-09-27

Abstract

The application provides an alignment method of a wireless charging device, an electric automobile and a ground electromagnetic transmitting device, and relates to the technical field of vehicle wireless charging. The method comprises the following steps: the method comprises the steps that when a signal for representing communication connection between an electric automobile and a wireless charging pile connected with the wireless charging parking space is detected, the wireless charging parking memory information is acquired, the electric automobile is guided to park in a target parking space, meanwhile, vehicle parking notification information is sent to a ground end electromagnetic emission device of the wireless charging pile to notify the ground end electromagnetic emission device to detect position deviation information of the ground end electromagnetic emission device and a vehicle end electromagnetic receiving device, the ground end electromagnetic emission device moves according to the position deviation information until the ground end electromagnetic emission device is aligned with the vehicle end electromagnetic receiving device, the ground end electromagnetic emission device is guided to be aligned with the vehicle end electromagnetic receiving device while the vehicle parks in the target parking space, and therefore alignment efficiency and accuracy of the ground end electromagnetic emission device and the vehicle end electromagnetic receiving device are effectively improved.

Description

Alignment method of wireless charging device, electric vehicle and ground electromagnetic transmitting device

Technical Field

The application relates to the technical field of vehicle wireless charging, in particular to an alignment method of a wireless charging device, an electric automobile and a ground electromagnetic transmitting device.

Background

Along with new energy automobile's rapid development, electric automobile is also higher and higher in the occupancy in the market, and because of people's intellectuality and the pursuit of security to electric automobile's the mode of charging, current electric automobile's the mode of charging also changes from traditional wired plug mode of charging to wireless mode of charging to solve current wired plug mode of charging because of the rifle and the mouthful wearing and tearing that charge that frequent plug leads to, the circuit wearing and tearing scheduling problem that bends, improve the security of charging.

The ground electromagnetic transmitting device and the vehicle electric energy receiving device of the existing wireless charging system are connected in a non-contact manner, so that the alignment of the ground electromagnetic transmitting device and the vehicle electric energy receiving device is realized, the accuracy and the efficiency of the charging alignment of the vehicle end and the ground end are improved, and the technical problem to be solved at present is solved.

Disclosure of Invention

The embodiment of the application provides an alignment method of a wireless charging device, an electric automobile and a ground electromagnetic transmitting device, which can effectively improve the alignment efficiency and accuracy of the ground electromagnetic transmitting device and a vehicle electromagnetic receiving device.

In a first aspect, the present application provides an alignment method for a wireless charging device, which is applied to an electric vehicle, where the wireless charging device includes a ground-end electromagnetic transmitting device disposed on a wireless charging parking space and a vehicle-end electromagnetic receiving device disposed on the electric vehicle, and the method includes: when a preset signal is detected, obtaining wireless charging parking memory information, wherein the preset signal is a signal for representing the establishment of communication connection between the electric automobile and a wireless charging pile connected with the wireless charging parking place; the wireless charging pile and the electric automobile establish a communication connection relation in the process of learning, memorizing and parking the wireless charging parking space in advance; guiding the electric automobile to park in a target parking space according to the wireless charging parking memory information, wherein the target parking space is a wireless charging parking space corresponding to the wireless charging pile; and in the process of guiding the electric automobile to park in the target parking space, sending vehicle parking notification information to the ground-end electromagnetic transmitting device, wherein the vehicle parking notification information is used for indicating the ground-end electromagnetic transmitting device to detect position deviation information of the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device, and the position deviation information is used for guiding the ground-end electromagnetic transmitting device to move according to the position deviation information until the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device are aligned.

In the embodiment of the application, the electric automobile is guided to park in the target parking space through the wireless charging parking memory information acquired when the signal for representing the communication connection between the electric automobile and the wireless charging pile connected with the wireless charging parking space is detected, and meanwhile, the vehicle parking notification information is sent to the ground-end electromagnetic transmitting device of the wireless charging pile to notify the ground-end electromagnetic transmitting device to detect the position deviation information between the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device, and the vehicle parking notification information is moved according to the position deviation information until the ground-end electromagnetic transmitting device is aligned with the vehicle-end electromagnetic receiving device, namely, according to the embodiment of the application, after the vehicle parking is successfully learned and memorized, the ground-end electromagnetic transmitting device can be automatically parked in the wireless charging parking space when being connected with the wireless communication signal next time, the automatic parking is started without manual operation, the vehicle parking is more convenient, and the ground-end electromagnetic transmitting device is guided to be aligned with the vehicle-end electromagnetic receiving device when the vehicle is parked in the target parking space, the alignment efficiency and accuracy of the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device are effectively improved.

In an optional manner provided by the first aspect, the acquiring the wireless charging parking memory information when the predetermined signal is detected includes:

when the preset signal is detected, generating memory parking prompt information, wherein the memory parking prompt information is used for prompting a user whether to park the electric automobile into the target parking space in a memory parking wireless charging parking space mode;

and when the fact that the user selects to park the electric automobile into the target parking space in a memory parking wireless charging parking space mode is determined, the wireless charging parking memory information is obtained.

In the embodiment of the application, the parking prompt information is memorized, so that the user is reminded of parking the target parking space for charging in a memory parking mode, and the use experience of the user is improved.

In another optional manner provided by the first aspect, the acquiring the wireless charging parking memory information when the predetermined signal is detected includes:

when the preset signal is detected, determining whether the wireless charging parking memory information can be acquired;

and when the wireless charging parking memory information cannot be acquired, generating wireless charging parking path learning prompt information, wherein the wireless charging parking path learning prompt information is used for prompting a user whether to select wireless charging parking path learning or not and generating wireless charging parking memory information.

In another optional manner provided by the first aspect, the wireless charging parking memory information includes a parking start location, a parking end location, and a parking planned path, and the guiding the electric vehicle to park in the target parking space according to the wireless charging parking memory information includes:

starting a vehicle cruising mode, and acquiring a planned path of the electric automobile to the parking starting position;

and after the electric automobile reaches the parking starting position, guiding the electric automobile to park in the target parking space until the electric automobile reaches the parking ending position according to the parking planning path.

In a second aspect, the present application provides an alignment method for a wireless charging device, which is applied to a ground electromagnetic transmitting device, where the wireless charging device includes a ground electromagnetic transmitting device disposed on a wireless charging parking space and a vehicle electromagnetic receiving device disposed on an electric vehicle, and the method includes:

when the situation that the electric automobile is in communication connection with the wireless charging pile connected with the wireless charging parking place is monitored, vehicle parking notification information sent by the electric automobile is monitored;

when the vehicle parking notification information is monitored, detecting position deviation information of the ground-end electromagnetic transmitting device and a vehicle-end electromagnetic receiving device arranged on the electric vehicle;

and guiding the ground-end electromagnetic transmitting device to move to a corresponding position according to the position deviation information until the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device are aligned.

In the embodiment of the application, when the vehicle parking notification information sent by the electric vehicle is monitored, the ground-end electromagnetic transmitting device automatically detects the position deviation between the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device to quickly adjust the position to realize alignment, so that the alignment efficiency and accuracy of the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device are effectively improved.

In an optional manner provided by the second aspect, the position deviation information is a deviation value of a center coordinate of the ground-side electromagnetic transmitting device and a center coordinate of the vehicle-side electromagnetic receiving device in an X direction and/or a Y direction.

In another optional manner provided by the second aspect, the guiding the ground-end electromagnetic transmitting device to move to a corresponding position according to the position deviation information until the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device are aligned includes:

and controlling the ground electromagnetic transmitting device to adjust the position through a servo motor according to the position deviation information until the ground electromagnetic transmitting device is aligned with the vehicle electromagnetic receiving device.

In a third aspect, the present application provides an alignment system for a wireless charging device, applied to an electric vehicle, including:

the wireless charging parking memory information acquisition unit is used for acquiring wireless charging parking memory information when a preset signal is detected, wherein the preset signal is a signal for representing the establishment of communication connection between the electric automobile and a wireless charging pile connected with the wireless charging parking space; the wireless charging pile and the electric automobile are in communication connection with each other in advance in the process of learning, memorizing and parking in the wireless charging parking space;

the vehicle parking guiding unit is used for guiding the electric vehicle to park in a target parking space according to the wireless charging parking memory information, and the target parking space is a wireless charging parking space corresponding to the wireless charging pile;

and a vehicle parking notification information sending unit, configured to send vehicle parking notification information to the ground-end electromagnetic transmitting device in a process of guiding the electric vehicle to park in the target parking space, where the vehicle parking notification information is used to instruct the ground-end electromagnetic transmitting device to detect position deviation information between the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device, and the position deviation information is used to guide the ground-end electromagnetic transmitting device to move according to the position deviation information until the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device are aligned.

In an optional manner provided by the third aspect, the wireless charging parking memory information obtaining unit includes:

a memory parking prompt information generation subunit, configured to generate a memory parking prompt information when the predetermined signal is detected, where the memory parking prompt information is used to prompt a user whether to park the electric vehicle in the target parking space in a memory parking wireless charging parking space;

and the wireless charging parking memory information acquisition subunit acquires the wireless charging parking memory information when determining that the user selects to park the electric vehicle into the target parking space in a mode of memorizing to park the electric vehicle into the wireless charging parking space in English.

In another optional manner provided by the third aspect, the wireless charging parking memory information obtaining unit further includes:

the information acquisition confirming subunit is used for determining whether the wireless charging parking memory information can be acquired or not when the predetermined signal is detected;

and the prompt information generating subunit is configured to generate wireless charging parking path learning prompt information when the wireless charging parking memory information cannot be acquired, where the wireless charging parking path learning prompt information is used to prompt a user whether to select wireless charging parking path learning or not, and generate wireless charging parking memory information.

In another optional manner provided by the third aspect, the wireless charging parking memory information includes a parking start location, a parking end location, and a parking planning path, and the vehicle parking guidance unit includes:

the planned path obtaining subunit is used for starting a vehicle cruise mode and obtaining a planned path of the electric vehicle to the parking starting position;

and the vehicle parking guidance subunit is used for guiding the electric vehicle to park in the target parking space until the electric vehicle reaches the parking ending position according to the parking planned path after the electric vehicle reaches the parking starting position.

In a fourth aspect, the present application provides an alignment system for a wireless charging device, applied to a ground-end electromagnetic transmitter, including:

the information monitoring unit is used for monitoring vehicle parking notification information sent by the electric vehicle when the situation that the electric vehicle is in communication connection with the wireless charging pile connected with the wireless charging parking place is monitored;

a position deviation detecting unit for detecting the vehicle parking notification information,

detecting position deviation information of the ground-end electromagnetic transmitting device and a vehicle-end electromagnetic receiving device arranged on the electric vehicle;

and the ground end electromagnetic transmitting device movement guiding unit is used for guiding the ground end electromagnetic transmitting device to move to a corresponding position according to the position deviation information until the ground end electromagnetic transmitting device is aligned with the vehicle end electromagnetic receiving device.

In an optional manner provided by the fourth aspect, the position deviation information is a deviation value of a center coordinate of the ground-side electromagnetic transmitting device and a center coordinate of the vehicle-side electromagnetic receiving device in an X direction and/or a Y direction.

In another alternative provided by the fourth aspect, the ground electromagnetic emission device movement guiding unit is specifically configured to:

In a fifth aspect, the present application provides an electric vehicle comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method according to the first aspect or any alternative manner of the first aspect when executing the computer program.

In a sixth aspect, the present application provides a ground electromagnetic emission device vehicle, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method according to the second aspect or any optional manner of the second aspect when executing the computer program.

In a seventh aspect, the present application provides a computer readable storage medium storing a computer program which, when executed by a processor, implements the method as described above in the first aspect, any alternative of the first aspect, the second aspect or any alternative of the second aspect.

In an eighth aspect, the present invention provides a computer program product, when the computer program product runs on an electric vehicle, causing the electric vehicle to execute the steps of the alignment method of the wireless charging apparatus described above in the first aspect, or causing a ground-end electromagnetic transmitting apparatus to execute the steps of the alignment method of the wireless charging apparatus described above in the second aspect.

It is to be understood that, for the beneficial effects of the second aspect to the eighth aspect, reference may be made to the description of the first aspect or the second aspect, and details are not repeated here.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic connection diagram of a wireless charging pile and a ground electromagnetic transmitting device according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a ground electromagnetic emission device according to an embodiment of the present disclosure;

fig. 3 is a flowchart illustrating an alignment method of a wireless charging device according to an embodiment of the present disclosure;

fig. 4 is a flowchart illustrating a method for obtaining wireless parking memory information according to an embodiment of the present application;

fig. 5 is a schematic flowchart of another alignment method for a wireless charging device according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of an alignment system of a wireless charging device according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of an alignment system of another wireless charging device according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of an electric vehicle according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a ground electromagnetic emission device according to an embodiment of the present application.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

It should be understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items. Furthermore, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between descriptions and not necessarily for describing or implying relative importance.

It should also be appreciated that reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather mean "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.

Before explaining an alignment method of a wireless charging device provided in an embodiment of the present application, a wireless charging device, an electric vehicle, and the like in the embodiment of the present application are exemplarily described with reference to fig. 1 and 2. Fig. 1 is a schematic diagram of a connection between a wireless charging pile and a ground electromagnetic transmitting device provided in an embodiment of the present application, and fig. 2 is a schematic diagram of a structure of the ground electromagnetic transmitting device provided in the embodiment of the present application.

The wireless charging device comprises a ground end electromagnetic transmitting device arranged on the wireless charging parking space and a vehicle end electromagnetic receiving device arranged on the electric vehicle.

As shown in fig. 1, the ground electromagnetic transmitting device is connected to the wireless charging pile through a wire, a movable platform is arranged on the ground electromagnetic transmitting device, a servo motor and a wheel are arranged on the movable platform, the wheel is driven by the servo motor to move the ground electromagnetic transmitting device on the wireless charging parking space, for example, the ground electromagnetic transmitting device is driven by the servo motor to freely move on the wireless charging parking space along the X direction and the Y direction, so that the aim of aligning with the vehicle electromagnetic receiving device is fulfilled.

The ground end electromagnetic emission device is generally arranged at the center of the wireless charging parking place, so that the moving distance of the ground end electromagnetic emission device can be reduced, the abrasion and the use frequency of the motor are reduced, and the service life of the motor is prolonged. When the ground electromagnetic emission device is arranged at other positions of the wireless charging parking space, the ground electromagnetic emission device can be moved to the center position of the wireless charging parking space through the driving motor when the electric automobile is confirmed to be parked in the wireless charging parking space.

As shown in fig. 2, a stopper is disposed on the movable platform, and the stopper is used to assist the motor to control the movement in the Y direction, so that the control accuracy of the movement in the Y direction can be improved. The vehicle-end electromagnetic receiving device is generally arranged at the bottom center position of the electric vehicle, for example, the center position of a vehicle chassis, and when the ground-end electromagnetic transmitting device is aligned with the vehicle-end electromagnetic receiving device, the purpose of wirelessly charging the electric vehicle can be achieved.

When the ground end electromagnetic transmitting device is aligned with the vehicle end electromagnetic receiving device, the wireless charging condition can be judged to be met, the wireless charging function is started through the wireless charging pile, and the charging operation is performed on the electric automobile through the charging device.

Referring to fig. 3, fig. 3 is a schematic flowchart of an alignment method of a wireless charging device according to an embodiment of the present application, and is applied to an electric vehicle, where the steps of the alignment method of the wireless charging device are mainly implemented in a certain controller disposed on the electric vehicle, and the detailed steps of the alignment method of the wireless charging device are as follows:

in step S301, when a predetermined signal is detected, the wireless charging parking memory information is acquired.

In the embodiment of the application, as the automatic driving technology is continuously improved, the automatic parking technology is more and more mature, the automatic parking technology is combined with the wireless charging technology, the problems that the charging gun, the charging port, the circuit bending and abrasion and the like caused by frequent plugging in and out of the existing wired plugging charging mode can be effectively solved, and the charging safety is improved. The wireless charging parking space can be recorded in the vehicle controller by memorizing the parking mode, and when the electric vehicle runs to the recorded wireless charging parking space, the electric vehicle autonomously parks in the wireless charging parking space for charging, so that the operation of a user and the abrasion of vehicle tires are further reduced, and the charging efficiency of the electric vehicle is improved.

The preset signal is used for representing that communication connection is established between the electric automobile and the wireless charging pile connected with the wireless charging parking place; the wireless charging pile and the electric automobile are in communication connection relation established in the process of learning, memorizing, parking in the wireless charging parking space and memorizing and parking in advance.

Here, the predetermined signal is a signal obtained by two different terminals performing communication connection in a WIFI, bluetooth, cellular network, or other manners. After the electric automobile is in communication connection with the wireless charging pile, if the electric automobile drives into the wireless communication range of the wireless charging pile again, the electric automobile can be in communication connection with the wireless charging pile, the electric automobile detects the preset signal at this moment, and the recorded wireless charging parking memory information is obtained from the vehicle controller, so that the automatic parking of the vehicle into the parking space corresponding to the wireless charging pile and the charging action are finished according to the wireless charging parking memory information.

And step S302, guiding the electric automobile to park in a target parking space according to the wireless charging parking memory information.

In the embodiment of the application, the wireless charging parking memory information comprises a parking starting position, a parking ending position and a parking path, and when the electric automobile is located at the parking starting position, the electric automobile is guided to park in the parking ending position in the target parking space through the parking path.

It should be noted that the target parking space is a parking space corresponding to the wireless charging pile recorded in the wireless charging parking memory information.

In some embodiments of the application, in order to facilitate a user to confirm whether to enter a target parking space for wireless charging in a memory parking manner, and improve user experience, when the predetermined signal is detected, a memory parking prompt message is generated, where the memory parking prompt message is used to prompt the user whether to park the electric vehicle in the target parking space in a memory parking wireless charging parking space manner; and when the fact that the user selects to park the electric automobile into the target parking space in a memory parking wireless charging parking space mode is determined, the wireless charging parking memory information is obtained.

In other embodiments of the present application, since the wireless charging parking memory information is not recorded in the vehicle controller, the wireless charging parking memory information cannot be obtained when the predetermined signal is detected, and therefore, it is necessary to prompt the user whether to perform a related operation of recording the wireless charging parking memory information, so that the wireless charging parking memory information can be quickly obtained for performing the related operation when the predetermined signal is detected next time.

Referring to fig. 4, fig. 4 is a flowchart illustrating a method for obtaining wireless charging parking memory information according to an embodiment of the present application, which is detailed as follows:

step S401, when the predetermined signal is detected, determining whether the wireless charging parking memory information can be acquired.

In the embodiment of the application, when the wireless communication device of the electric automobile detects a wireless communication signal sent by the wireless communication device of the wireless charging pile, a wireless charging parking memory information request is sent to the vehicle controller, and whether the wireless charging parking memory information can be acquired is determined.

And step S402, when the wireless charging parking memory information cannot be acquired, generating wireless charging parking path learning prompt information.

In the embodiment of the application, the wireless charging parking path learning prompt information is used for prompting a user whether to select wireless charging parking path learning or not, and generating wireless charging parking memory information.

Step S303, in the process of guiding the electric vehicle to park in the target parking space, sending a vehicle parking notification message to the ground-end electromagnetic transmitting device.

In an embodiment of the present application, the vehicle parking notification information is used to instruct the ground electromagnetic transmitting device to detect position deviation information between the ground electromagnetic transmitting device and the vehicle electromagnetic receiving device, and the position deviation information is used to guide the ground electromagnetic transmitting device to move according to the position deviation information until the ground electromagnetic transmitting device and the vehicle electromagnetic receiving device are aligned.

In an embodiment of the present application, when the electric vehicle establishes a communication connection with the wireless charging pile and cannot acquire the wireless charging parking memory information, the wireless charging parking path learning prompt information is generated, and the generated wireless charging parking path learning prompt information is displayed on a vehicle-mounted terminal screen, for example, a pop-up window is displayed on the vehicle-mounted terminal screen: when the user selects 'yes', drawing is started, the user memorizes and parks in the wireless charging parking space to learn so as to generate wireless charging parking memory information.

In the process of learning of memory parking in the wireless charging parking space, whether a ground end electromagnetic emission device located in the wireless charging parking space is detected or not is determined through a look-around camera on the side face of a vehicle, and when the ground end electromagnetic emission device is detected, wireless charging parking space guiding and positioning request information is sent and is used for indicating a vehicle-mounted terminal screen to switch an interface to a wireless charging parking space guiding and positioning starting view; the driver of the electric automobile guides the vehicle to park in the wireless charging parking space through the panoramic all-around system, when the vehicle starts to park in the wireless charging parking space, the electric automobile sends vehicle parking notification information to the ground-end electromagnetic emission device, and after receiving the vehicle parking notification information, detecting the position deviation information between the ground terminal electromagnetic transmitting device and a vehicle terminal electromagnetic receiving device arranged on the electric vehicle, guiding the ground terminal electromagnetic transmitting device to move according to the position deviation information, so that the ground-end electromagnetic transmitting device can realize the alignment with the vehicle-end electromagnetic receiving device during the parking process of the vehicle, when the vehicle is completely parked in the wireless charging parking space, the ground end electromagnetic transmitting device is just aligned with the vehicle end electromagnetic receiving device to realize the purpose of wireless charging, and generating wireless charging parking memory information, and displaying a parking memory completion view on a vehicle-mounted screen terminal.

In another embodiment of the present application, when parking is completed, a memory parking learning completion prompt message is generated at the same time, and the memory parking learning completion prompt message is displayed on the vehicle-mounted terminal screen, such as: "I have learned to use memory to park in the wireless charging parking space the next time".

Compared with the situation that the alignment of the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device is realized after the vehicle is parked in the wireless charging parking space, the alignment time of the charging device is greatly reduced, and the alignment efficiency and accuracy of the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device can be effectively improved.

In the embodiment of the application, the wireless charging parking memory information recorded in the process of learning, memorizing and parking the wireless charging parking space is stored, so that after the learning is successful, if the wireless communication signal recorded in the learning process is connected again, for example, after the wireless communication signal is automatically connected to a certain WIFI signal, the purpose of automatically parking the wireless charging parking space corresponding to the wireless charging pile to which the WIFI signal belongs can be achieved, and the wireless charging can be achieved.

In some embodiments of the application, when the electric automobile uses the wireless charging pile to charge, the wireless communication equipment of the wireless charging pile stops sending wireless communication signals, the situation that other electric automobiles detect that the wireless communication information establishes communication connection, but the wireless charging pile is occupied and cannot be used is avoided, the charging interference of the occupied wireless charging pile on the electric automobile is reduced, unnecessary charging confirmation time is shortened, and the user use experience is improved.

In other embodiments of the application, when a plurality of wireless charging piles exist and the electric vehicle establishes communication connection with the wireless charging piles, when the electric vehicle enters a wireless communication range of the wireless charging piles, a plurality of selectable wireless communication signals are displayed on a screen of a vehicle-mounted terminal, so that a user can select and confirm which wireless charging pile to establish communication connection, and therefore wireless charging parking memory information is obtained according to a communication identifier of the wireless charging pile, and corresponding parking charging operation is carried out.

In other embodiments of the present application, after the electric vehicle is connected to a wireless communication signal of a certain wireless charging pile, since the current location is not necessarily the parking start location recorded in the wireless charging parking memory information, the vehicle cruise mode needs to be started, a path from the current location to the parking start location of the electric vehicle is planned, a planned path from the electric vehicle to the parking start location is obtained, the electric vehicle is guided to travel to the parking start location according to the planned path, and after the electric vehicle reaches the parking real location, the electric vehicle is guided to park in the target parking space to the parking end location according to the parking planned path.

In an embodiment of the present application, when the predetermined signal is detected and the electric vehicle reaches the parking start position, a parking mode confirmation prompt message is sent to the vehicle-mounted terminal screen, for example, a pop-up window prompt is sent: "ask for a question whether to park in a wireless charging slot by memory? When the user selects 'yes', a vehicle cruising mode is started, the electric vehicle is guided to park in the target parking space to reach the parking ending position according to the parking planned path, and meanwhile, a vehicle parking guiding and positioning view is displayed on a vehicle-mounted terminal screen.

Referring to fig. 5, fig. 5 is a schematic flow chart of another alignment method of a wireless charging device according to an embodiment of the present application, applied to a ground-end electromagnetic transmitter, which is detailed as follows:

and S501, when the situation that the electric automobile is in communication connection with the wireless charging pile connected with the wireless charging parking place is monitored, vehicle parking notification information sent by the electric automobile is monitored.

Step S502, when the vehicle parking notification information is monitored, detecting position deviation information between the ground electromagnetic transmitting device and a vehicle electromagnetic receiving device disposed on the electric vehicle.

And step S503, guiding the ground electromagnetic emission device to move to a corresponding position according to the position deviation information until the ground electromagnetic emission device is aligned with the vehicle electromagnetic receiving device.

In the embodiment of the application, after monitoring the vehicle parking notification information sent by the electric vehicle, the ground-end electromagnetic transmitting device detects the position deviation information between the ground-end electromagnetic transmitting device and the vehicle pad electromagnetic receiving device arranged on the electric vehicle so as to determine the moving direction and the moving distance of the ground-end electromagnetic transmitting device.

In some embodiments of the present application, according to the position deviation information, the ground electromagnetic transmitting device is controlled by the servo motor to adjust the position until the ground electromagnetic transmitting device and the vehicle electromagnetic receiving device are aligned.

Here, the positional deviation information is a deviation value between the center coordinate of the ground-side electromagnetic transmitter and the center coordinate of the vehicle-side electromagnetic receiver in the X direction and/or the Y direction.

In an embodiment of the present application, the mutual inductance detecting unit disposed on the ground-end electromagnetic transmitting device and the mutual inductance detecting unit disposed on the vehicle-end electromagnetic receiving device detect position deviation information of a center coordinate of the ground-end electromagnetic transmitting device and a center coordinate of the vehicle-end electromagnetic receiving device in an X/Y direction, and the ground-end electromagnetic transmitting device controls automatic alignment through the servo motor according to the position deviation information after detecting the position deviation information.

Specifically, the ground electromagnetic emission device sends the deviation signal to the motor controller, the motor controller sends the position deviation information to the servo motor, and the servo motor controls the wheels to move towards the deviation direction to set the distance according to the target position, namely the position adjusted according to the position deviation information through the PID. For example, when the local electromagnetic transmitting device detects that the position deviation information between the local electromagnetic transmitting device and the vehicle electromagnetic receiving device is-20 cm in the Y direction, the position deviation information represents that the ground electromagnetic transmitting device is 20cm above the vehicle electromagnetic receiving device, at this time, the ground electromagnetic transmitting device needs to move 20cm downwards, the position deviation information is sent to the servo motor through the motor controller to serve as a target position, the servo motor is controlled through PID to drive wheels to reach the target position, when a vehicle is parked in a wireless charging parking space, the ground electromagnetic transmitting device completes alignment with the vehicle electromagnetic receiving device, the alignment time between the ground electromagnetic transmitting device and the vehicle electromagnetic receiving device is shortened, and the alignment efficiency and accuracy are improved.

In the embodiment of the application, the ground-end electromagnetic transmitting device automatically detects the position deviation between the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device to quickly adjust the position to realize alignment when monitoring the vehicle parking notification information sent by the electric vehicle, so that the alignment efficiency and accuracy of the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device are effectively improved. Meanwhile, the ground electromagnetic transmitting device is movable, and the electric automobile is parked in the wireless charging parking place according to the parking planning path in the wireless charging parking memory information, so that the abrasion of the vehicle tire and poor driving experience caused by repeated garage kneading in high-precision parking are avoided.

In a specific application scenario of the application, when the electric vehicle does not learn to memorize and park in the wireless charging parking space or when the electric vehicle does not store the wireless charging parking memory information, when the electric vehicle enters a wireless communication range of the wireless charging pile, and when a wireless communication signal sent by a wireless communication device arranged on the wireless charging pile is detected, after the electric vehicle confirms that communication is established with the wireless charging and confirms that the electric vehicle needs to learn to memorize and park in the wireless charging parking space, the electric vehicle learns to park in the wireless charging parking space. In the process of learning to memorize and park in the wireless charging parking space, a driver drives the electric automobile to park in the wireless charging parking space under the guidance of the panoramic looking-around system. Meanwhile, the electric automobile sends vehicle parking notification information to the ground-end electromagnetic transmitting device, the ground-end electromagnetic transmitting device is started through the vehicle parking notification information, the ground-end electromagnetic transmitting device monitors position deviation information between the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device after receiving the vehicle parking notification information, alignment between the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device is completed according to the position deviation information, after the ground-end electromagnetic transmitting device is aligned with the vehicle-end electromagnetic receiving device, learning of parking in the wireless charging parking space is finished through memory, wireless charging parking memory information is generated and stored, and learning of parking in the wireless charging parking space is finished through memory.

In another specific application scenario of the application, when the electric automobile learns to memorize and park in the wireless charging parking space and the wireless charging parking memory information is not stored in the electric automobile, when the electric automobile drives into the wireless communication range of the wireless communication device of the wireless charging pile, the electric automobile is successfully connected with the wireless charging pile through WIFI connection, and meanwhile, when a driver chooses to park in the wireless charging parking space through memory, the automatic driving mode is started, and the electric automobile is parked in the wireless charging parking space corresponding to the wireless charging pile according to a parking planning path in the wireless charging parking memory information. When a vehicle is parked in the wireless charging parking place, the ground-end electromagnetic transmitting device is sent with vehicle parking notification information to notify the ground-end electromagnetic transmitting device to detect the position deviation information of the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device in the X direction and the Y direction in real time, the ground-end electromagnetic transmitting device controls the servo motor to adjust the position according to the detected position deviation information to meet the wireless charging condition, and when the wireless charging condition is met, namely the ground-end electromagnetic transmitting device is aligned with the vehicle-end electromagnetic receiving device, the wireless charging function is automatically started.

It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Based on the alignment method of the wireless charging device provided by the above embodiment, the embodiment of the present application further provides a system embodiment for implementing the above method embodiment.

Referring to fig. 6, fig. 6 is a schematic view illustrating an alignment system of a wireless charging device according to an embodiment of the present disclosure. The units are included for performing the steps in the corresponding embodiment of fig. 3. Please refer to the related description of the embodiment in fig. 3. For convenience of explanation, only the portions related to the present embodiment are shown. Referring to fig. 6, the alignment system 6 of the wireless charging device includes:

the wireless charging parking memory information acquiring unit 61 is configured to acquire wireless charging parking memory information when a predetermined signal is detected, where the predetermined signal is a signal used to represent that a communication connection is established between the electric vehicle and a wireless charging pile connected to the wireless charging parking space; the wireless charging pile and the electric automobile are in communication connection with each other in advance in the process of learning, memorizing and parking in the wireless charging parking space; (ii) a

A vehicle parking guidance unit 62, configured to guide the electric vehicle to park in a target parking space according to the wireless charging parking memory information, where the target parking space is a wireless charging parking space corresponding to the wireless charging pile;

a vehicle parking notification information sending unit 63, configured to send vehicle parking notification information to the ground-end electromagnetic transmitting device in a process of guiding the electric vehicle to park in the target parking space, where the vehicle parking notification information is used to instruct the ground-end electromagnetic transmitting device to detect position deviation information between the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device, and the position deviation information is used to guide the ground-end electromagnetic transmitting device to move according to the position deviation information until the ground-end electromagnetic transmitting device and the vehicle-end electromagnetic receiving device are aligned.

In some embodiments of the present application, the wireless charging parking memory information obtaining unit 61 includes:

In other embodiments of the present application, the wireless charging parking memory information obtaining unit 61 further includes:

In other embodiments of the present application, the wireless charging parking memory information includes a parking start position, a parking end position and a parking planned path, and the vehicle parking guidance unit 62 includes:

Referring to fig. 7, fig. 7 is a schematic view of an alignment system of a wireless charging device according to an embodiment of the present application, where the alignment system of the wireless charging device is applied to a ground-end electromagnetic transmitter. The units are included for performing the steps in the corresponding embodiment of fig. 5. Please refer to fig. 5 for a related description of the embodiment. For convenience of explanation, only the portions related to the present embodiment are shown. Referring to fig. 5, the alignment system 7 of the wireless charging device includes:

the information monitoring unit 71 is configured to monitor vehicle parking notification information sent by the electric vehicle when it is monitored that the electric vehicle is in communication connection with the wireless charging pile connected to the wireless charging parking space;

a position deviation detecting unit 72, configured to detect position deviation information between the ground-side electromagnetic transmitting device and a vehicle-side electromagnetic receiving device disposed on the electric vehicle when the vehicle parking notification information is detected;

and a ground electromagnetic transmitting device movement guiding unit 73, configured to guide the ground electromagnetic transmitting device to move to a corresponding position according to the position deviation information until the ground electromagnetic transmitting device and the vehicle electromagnetic receiving device are aligned.

In some embodiments of the present application, the position deviation information is a deviation value of a center coordinate of the ground-side electromagnetic transmitting device and a center coordinate of the vehicle-side electromagnetic receiving device in an X direction and/or a Y direction.

In some embodiments of the present application, the ground-end electromagnetic emission device movement guiding unit 73 is specifically configured to:

It should be noted that, because the contents of information interaction, execution process, and the like between the modules are based on the same concept as that of the embodiment of the method of the present application, specific functions and technical effects thereof may be specifically referred to a part of the embodiment of the method, and details are not described here.

Fig. 8 is a schematic diagram of an electric vehicle according to an embodiment of the present application. As shown in fig. 8, the electric vehicle 8 of the embodiment includes: a processor 80, a memory 81, and a computer program 82 stored in the memory 81 and operable on the processor 80, such as an alignment program for a wireless charging device. The processor 80 executes the computer program 82 to implement the steps in the alignment method embodiments of the wireless charging devices, such as the steps 301 and 303 shown in fig. 3. Alternatively, the processor 80, when executing the computer program 82, implements the functionality of the various modules/units in the various system embodiments described above, such as the functionality of the units 81-83 shown in FIG. 8.

Illustratively, the computer program 82 may be divided into one or more modules/units, which are stored in the memory 81 and executed by the processor 80 to accomplish the present application. One or more of the modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program 82 in the electric vehicle 8. For example, the computer program 82 may be divided into the wireless charging parking memory information obtaining unit 61, the vehicle parking guidance unit 62, and the vehicle parking notification information sending unit 63, and specific functions of each unit are described with reference to the relevant description in the embodiment corresponding to fig. 3, which is not described herein again.

The electric vehicle may include, but is not limited to, a processor 80, a memory 81. Those skilled in the art will appreciate that fig. 8 is merely an example of an electric vehicle 8 and does not constitute a limitation of the electric vehicle 8 and may include more or fewer components than shown, or some components in combination, or different components, e.g., the electric vehicle may also include input output devices, network access devices, buses, etc.

The Processor 80 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The storage 81 may be an internal storage unit of the electric vehicle 8, such as a hard disk or a memory of the electric vehicle 8. The memory 81 may also be an external storage device of the electric vehicle 8, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like provided on the electric vehicle 8. Further, the memory 81 may also include both an internal storage unit and an external storage device of the electric vehicle 8. The memory 81 is used to store computer programs and other programs and data required for the electric vehicle. The memory 81 may also be used to temporarily store data that has been output or is to be output.

Fig. 9 is a schematic diagram of a ground-end electromagnetic emission device provided in an embodiment of the present application. As shown in fig. 9, the ground electromagnetic transmitting device 9 of this embodiment includes: a processor 90, a memory 91, and a computer program 92 stored in the memory 91 and operable on the processor 90, such as an alignment program for a wireless charging device. The processor 90 executes the computer program 92 to implement the steps in the above-mentioned alignment method embodiments of the wireless charging devices, such as the steps 501-503 shown in fig. 5. Alternatively, the processor 90, when executing the computer program 92, implements the functionality of the various modules/units in the various system embodiments described above, such as the functionality of the units 71-73 shown in FIG. 7.

Illustratively, the computer program 92 may be partitioned into one or more modules/units, which are stored in the memory 91 and executed by the processor 90 to accomplish the present application. One or more of the modules/units may be a series of computer program instruction segments capable of performing certain functions, which are used to describe the execution of the computer program 92 in the end-to-end electromagnetic transmitting device 9. For example, the computer program 92 may be divided into an information receiving unit 71, a position deviation detecting unit 72, and a ground electromagnetic transmitting device movement guiding unit 73, and specific functions of each unit are described with reference to the related description in the embodiment corresponding to fig. 5, which is not described herein again.

The ground-side electromagnetic transmitting device may include, but is not limited to, a processor 90 and a memory 91. Those skilled in the art will appreciate that fig. 9 is only an example of the ground-side electromagnetic transmitting apparatus 9, and does not constitute a limitation to the ground-side electromagnetic transmitting apparatus 9, and may include more or less components than those shown, or combine some components, or different components, for example, the ground-side electromagnetic transmitting apparatus may further include an input-output device, a network access device, a bus, etc.

The Processor 90 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The storage 91 may be an internal storage unit of the ground electromagnetic emitting device 9, such as a hard disk or a memory of the ground electromagnetic emitting device 9. The memory 91 may also be an external storage device of the ground electromagnetic emitting device 9, such as a plug-in hard disk provided on the ground electromagnetic emitting device 9, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. Further, the memory 91 may also include both an internal storage unit of the ground-side electromagnetic transmitting device 9 and an external storage device. The memory 91 is used for storing computer programs and other programs and data required by the ground-side electromagnetic transmitting device. The memory 91 may also be used to temporarily store data that has been output or is to be output.

The embodiment of the application also provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the alignment method of the wireless charging device can be realized.

The embodiment of the application provides a computer program product, when the computer program product runs on an electric vehicle or a ground electromagnetic transmitting device, the alignment method of the wireless charging device is correspondingly realized when the electric vehicle or the ground electromagnetic transmitting device is executed.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the system is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims

1. The alignment method of the wireless charging device is applied to an electric automobile, the wireless charging device comprises a ground electromagnetic transmitting device arranged on a wireless charging parking space and a vehicle electromagnetic receiving device arranged on the electric automobile, and the method comprises the following steps:

when a preset signal is detected, obtaining wireless charging parking memory information, wherein the preset signal is used for representing that communication connection is established between the electric automobile and a wireless charging pile connected with the wireless charging parking space; the wireless charging pile and the electric automobile establish a communication connection relation in the process of learning, memorizing and parking the wireless charging parking space in advance;

guiding the electric automobile to park in a target parking space according to the wireless charging parking memory information, wherein the target parking space is a wireless charging parking space corresponding to the wireless charging pile;

and in the process of guiding the electric automobile to park in the target parking space, sending vehicle parking notification information to the ground-end electromagnetic emission device, wherein the vehicle parking notification information is used for indicating the ground-end electromagnetic emission device to detect position deviation information of the ground-end electromagnetic emission device and the vehicle-end electromagnetic receiving device, and the position deviation information is used for guiding the ground-end electromagnetic emission device to move according to the position deviation information until the ground-end electromagnetic emission device and the vehicle-end electromagnetic receiving device are aligned.

2. The method for aligning the wireless charging device according to claim 1, wherein the acquiring the wireless charging parking memory information when the predetermined signal is detected comprises:

and when the fact that the user selects to park the electric automobile into the target parking space in a mode of memorizing and parking the wireless charging parking space is determined, acquiring the wireless charging parking memory information.

3. The method for aligning the wireless charging device according to claim 1, wherein the acquiring the wireless charging parking memory information when the predetermined signal is detected comprises:

4. The method for aligning the wireless charging devices according to any one of claims 1 to 3, wherein the wireless charging parking memory information includes a parking start position, a parking end position and a parking planning path, and the guiding the electric vehicle to park in the target parking space according to the wireless charging parking memory information includes:

5. The alignment method of the wireless charging device is characterized by being applied to a ground electromagnetic transmitting device, wherein the wireless charging device comprises a ground electromagnetic transmitting device arranged on a wireless charging parking space and a vehicle electromagnetic receiving device arranged on an electric vehicle, and the method comprises the following steps:

when the vehicle parking notification information is monitored, detecting position deviation information of the ground-end electromagnetic transmitting device and a vehicle-end electromagnetic receiving device arranged on the electric vehicle according to the vehicle parking notification information;

6. The method for aligning wireless charging devices according to claim 5, wherein the positional deviation information is a deviation value of a center coordinate of the ground-side electromagnetic transmitting device and a center coordinate of the vehicle-side electromagnetic receiving device in an X direction and/or a Y direction.

7. The alignment method of the wireless charging device according to claim 5 or 6, wherein the guiding the ground electromagnetic transmitting device to move to a corresponding position according to the position deviation information until the ground electromagnetic transmitting device and the vehicle electromagnetic receiving device are aligned includes:

and controlling the ground-end electromagnetic emission device to adjust the position through a servo motor according to the position deviation information until the ground-end electromagnetic emission device and the vehicle-end electromagnetic receiving device are aligned.

8. An electric vehicle comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor when executing the computer program implements the method of aligning a wireless charging device according to any of claims 1 to 4.

9. A ground electromagnetic transmitting device comprising a processor, a memory and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the alignment method of the wireless charging device according to any of claims 5 to 7 when executing the computer program.

10. A computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, implements the method of aligning a wireless charging device according to any one of claims 1 to 7.