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CN115891734B - Charging control method and charging pile - Google Patents

Charging control method and charging pile Download PDF

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Publication number
CN115891734B
CN115891734B CN202310034421.5A CN202310034421A CN115891734B CN 115891734 B CN115891734 B CN 115891734B CN 202310034421 A CN202310034421 A CN 202310034421A CN 115891734 B CN115891734 B CN 115891734B
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China
Prior art keywords
vehicle
signal
charging
charging pile
pwm wave
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CN115891734A (en
Inventor
贺虹
白健
肖胜然
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Beijing Electric Vehicle Co Ltd
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Beijing Electric Vehicle Co Ltd
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Publication of CN115891734A publication Critical patent/CN115891734A/en
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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
    • 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
    • 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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Abstract

The invention discloses a charging control method and a charging pile, wherein the method comprises the following steps: after detecting that the charging pile is in charging connection with the vehicle, sending a first CP signal to the vehicle; receiving a second CP signal fed back by the vehicle, and acquiring an authentication result of the vehicle according to the second CP signal, wherein the second CP signal is generated by the vehicle according to the vehicle identification code; and controlling the charging pile to output a corresponding charging CP signal according to the authentication result of the vehicle. Therefore, after the charging pile and the vehicle are in charging connection, information interaction and authentication between the charging pile and the vehicle can be realized quickly, so that the charging pile can output corresponding charging CP signals according to the authentication result of the vehicle, the vehicle authentication process is simplified, the vehicle charging efficiency is improved, user operation is reduced, and the user experience of charging the vehicle is optimized.

Description

Charging control method and charging pile
Technical Field
The invention relates to the technical field of automobile charging, in particular to a charging control method and a charging pile.
Background
At present, in the charging service process of an electric automobile, when the use authority of charging equipment of the automobile is authenticated, a card swiping authentication mode or an APP code scanning authentication mode is generally adopted.
However, the related art has problems in that the user needs to perform a card swiping operation or a code scanning operation each time the user uses the charging device to charge the vehicle, so that information interaction between the charging pile and the vehicle and vehicle authentication are slow, the vehicle charging efficiency is low, and the user operation is complicated, so that the user experience of charging the vehicle is poor.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, a first object of the present invention is to provide a charging control method, which can quickly realize information interaction and authentication between a charging pile and a vehicle after the charging pile and the vehicle are connected, so that the charging pile can output a corresponding charging CP signal according to an authentication result of the vehicle, thereby simplifying a vehicle authentication process, improving a vehicle charging efficiency, reducing user operations, and optimizing user experience of charging the vehicle.
A second object of the present invention is to propose a charging pile.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides a charging control method, including: after detecting that a charging pile is connected with a vehicle in a charging way, sending a first CP signal to the vehicle; receiving a second CP signal fed back by the vehicle, and acquiring an authentication result of the vehicle according to the second CP signal, wherein the second CP signal is generated by the vehicle according to a vehicle identification code; and controlling the charging pile to output a corresponding charging CP signal according to the authentication result of the vehicle.
According to the charging control method provided by the embodiment of the invention, after the charging connection between the charging pile and the vehicle is detected, the first CP signal is sent to the vehicle, further, the second CP signal fed back by the vehicle is received, and the authentication result of the vehicle is obtained according to the second CP signal, wherein the second CP signal is generated by the vehicle according to the vehicle identification code, and the charging pile is controlled to output the corresponding charging CP signal according to the authentication result of the vehicle. Therefore, after the charging pile and the vehicle are in charging connection, information interaction and authentication between the charging pile and the vehicle can be realized quickly, so that the charging pile can output corresponding charging CP signals according to the authentication result of the vehicle, the vehicle authentication process is simplified, the vehicle charging efficiency is improved, user operation is reduced, and the user experience of charging the vehicle is optimized.
In addition, the charge control method according to the above embodiment of the present invention may further have the following additional technical features:
According to one embodiment of the present invention, before the receiving the second CP signal fed back by the vehicle, the method further includes: acquiring a handshake signal fed back by the vehicle; and controlling the charging pile to stop outputting the first CP signal according to the handshaking signal, and waiting for receiving a second CP signal fed back by the vehicle.
According to one embodiment of the invention, the method further comprises: and if the second CP signal fed back by the vehicle is not received within the first preset time, controlling the charging pile to output a charging CP signal with the duty ratio of 100%.
According to one embodiment of the present invention, the second CP signal includes a plurality of sets of PWM wave signals, and before the authentication result of the vehicle is obtained according to the second CP signal, the method further includes: and determining the validity of the second CP signal according to the plurality of groups of wave signals.
According to one embodiment of the present invention, the determining the validity of the second CP signal according to the plurality of sets of PWM wave signals includes: judging whether each group of PWM wave signals in the multiple groups of PWM wave signals are consistent or not; if each group of PWM wave signals in the multiple groups of PWM wave signals are consistent, determining that the second CP signal is effective, and acquiring an authentication result of the vehicle according to the second CP signal; and if each group of PWM wave signals in the plurality of groups of PWM wave signals are inconsistent, determining that the second CP signal is invalid, and controlling the charging pile to output a charging CP signal with the duty ratio of 100%.
According to one embodiment of the present invention, the obtaining the authentication result of the vehicle according to the second CP signal includes: analyzing the second CP signal to obtain a vehicle identification code corresponding to the second CP signal; judging whether the vehicle identification code is consistent with a preset vehicle identification code or not; if the vehicle identification code is consistent with the preset vehicle identification code, determining that the authentication result of the vehicle is passing; if the vehicle identification code is not consistent with the preset vehicle identification code, determining that the authentication result of the vehicle is failed.
According to one embodiment of the present invention, the preset vehicle identification code sent by the mobile terminal is obtained and stored.
According to one embodiment of the present invention, the controlling the charging pile to output the corresponding charging CP signal according to the authentication result of the vehicle includes: if the vehicle authentication result is passed, controlling the charging pile to output a charging CP signal with a duty ratio being a first duty ratio; and if the vehicle authentication result is not passed, controlling the charging pile to output a charging CP signal with the duty ratio of 100%.
According to one embodiment of the present invention, if the charging pile does not output the charging CP signal with the duty ratio being the first duty ratio within the second preset time, the method further includes receiving the second CP signal fed back by the vehicle again, and obtaining the authentication result of the vehicle according to the second CP signal.
In order to achieve the above object, according to a second aspect of the present invention, a charging pile includes a memory and a processor, where a charging control program is stored in the memory, and the charging control program is executed by the processor to implement the charging control method described above.
According to the charging pile provided by the embodiment of the invention, the processor executes the charging control program stored in the memory, and after the charging pile is in charging connection with the vehicle, information interaction and authentication between the charging pile and the vehicle can be rapidly realized, so that the charging pile can output corresponding charging CP signals according to the authentication result of the vehicle, thereby simplifying the vehicle authentication process, improving the vehicle charging efficiency, reducing user operation and optimizing the experience of the user in charging the vehicle.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a flow chart of a charging method according to an embodiment of the present invention;
Fig. 2 is a flow chart of a charging method according to another embodiment of the present invention;
fig. 3 is a flow chart of a charging method according to another embodiment of the present invention;
fig. 4 is a flow chart of a charging method according to another embodiment of the present invention;
fig. 5 is a flow chart of a charging method according to another embodiment of the present invention;
Fig. 6 is a flow chart of a charging method according to another embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The charging control method and the charging pile according to the embodiments of the present invention are described below with reference to the accompanying drawings.
Fig. 1 is a flow chart of a charging method according to an embodiment of the present invention.
As shown in fig. 1, the charge control method includes the steps of:
s101, after detecting that a charging pile is in charging connection with a vehicle, a first CP signal is sent to the vehicle.
Optionally, the charging connection manner of the charging pile and the vehicle may include wired charging connection and wireless charging connection, for example, the user may connect the charging pile and the vehicle by manually inserting the charging gun, so as to implement wired charging connection of the vehicle, or the user may stop the vehicle in a charging area corresponding to the charging pile, so as to implement wireless charging connection of the vehicle, and in this embodiment, the specific connection manner of the charging pile and the vehicle may not be limited.
Specifically, in some embodiments of the present invention, a charging pile controller may be built in the charging pile, where the charging pile controller may consider that a user needs to charge the vehicle after detecting that the charging pile is in charging connection with the vehicle, at this time, a first CP signal may be sent to the vehicle through a CP port of the charging pile, where the first CP signal is used to initiate a handshake request to the vehicle, and for example, the first CP signal may be preferably a 5% pwm signal.
S102, receiving a second CP signal fed back by the vehicle, and acquiring an authentication result of the vehicle according to the second CP signal, wherein the second CP signal is generated by the vehicle according to the vehicle identification code.
Specifically, in some embodiments of the present invention, after the charging pile controller receives the second CP signal fed back by the vehicle, the charging authority of the vehicle may be identified according to the second CP signal, and an authentication result of the vehicle corresponding to the charging authority may be obtained, so that the vehicle authentication may be quickly implemented without a user performing a card swiping or code scanning operation, where the second CP signal is generated according to a vehicle identification code of the vehicle.
It should be noted that the second CP signal is a 5% pwm signal, and the vehicle identification code of each vehicle corresponds to a different number of second CP signals.
And S103, controlling the charging pile to output a corresponding charging CP signal according to the authentication result of the vehicle.
Specifically, in some embodiments of the present invention, the authentication result of the vehicle may be used to indicate whether the current vehicle allows the charging pile to be used, and further, the charging pile controller may control the CP port of the charging pile to output a corresponding charging CP signal according to the authentication result of the vehicle, where the charging CP signal may be a fixed value or a variable value, when the charging CP signal is a fixed value, a 53% pwm signal or a 100% pwm signal may be preferred, and in this embodiment, the fixed value is not specifically limited, and when the charging CP signal is a variable value, the charging CP signal may be calibrated according to the charging power of the vehicle, the model of the vehicle, the remaining capacity of the vehicle battery, and so on.
Optionally, in some embodiments of the present invention, the charging pile controller may generate an authentication result of the corresponding vehicle according to the charging pile opening authority, so as to control the charging pile to output the corresponding charging CP signal according to the authentication result of the vehicle.
Further, before receiving the second CP signal fed back by the vehicle, as shown in fig. 2, the method further includes:
S201, a handshake signal fed back by the vehicle is acquired.
Specifically, in some embodiments of the present invention, after the vehicle detects the first CP signal sent by the charging pile, the in-vehicle switch may be controlled to be turned on and turned off for a third preset time, so that the vehicle is connected to the corresponding handshake response circuit, and the handshake signal is fed back to the charging pile, where the third preset time may not be limited, and the third preset time may be set correspondingly according to the model of the vehicle, and for example, the second preset time may be preferably 200 ms.
And S202, controlling the charging pile to stop outputting the first CP signal according to the handshaking signal, and waiting for receiving the second CP signal fed back by the vehicle.
Specifically, in some embodiments of the present invention, after the charging pile controller receives the handshake signal fed back by the vehicle, the charging pile may be controlled to stop outputting the first CP signal to the vehicle within a fourth preset time according to the handshake signal, so that the charging pile waits for receiving the second CP signal fed back by the vehicle through the CP port, thereby quickly implementing information interaction between the charging pile and the vehicle.
Alternatively, in an embodiment of the present invention, the fourth preset time may preferably be 100 milliseconds.
Further, the charging control method further includes: and if the second CP signal fed back by the vehicle is not received within the first preset time, controlling the charging pile to output a charging CP signal with the duty ratio of 100%.
Specifically, in some embodiments of the present invention, when the charging pile controller does not receive the second CP signal fed back by the vehicle within the first preset time, it may be considered that the vehicle does not successfully provide the vehicle identification information for performing the vehicle authentication to the charging pile, and at this time, the charging pile may be controlled to output the charging CP signal with the duty ratio of 100%, so as to prohibit the charging pile from providing the charging service for the vehicle.
Alternatively, the first preset time may be calibrated correspondingly according to the data length of the second CP signal sent by the vehicle, for example, the first preset time may be preferably 8 seconds.
Further, the second CP signal includes a plurality of sets of PWM wave signals, and before the authentication result of the vehicle is obtained according to the second CP signal, the method further includes: and determining the validity of the second CP signal according to the multiple groups of PWM wave signals.
Specifically, in some embodiments of the present invention, the charging pile controller may verify the validity of the second CP signal according to a plurality of sets of PWM wave signals fed back by the vehicle, so as to ensure reliability of vehicle authentication, where the plurality of sets of PWM wave signals in the present embodiment include at least two sets of PWM wave signals.
Further, as shown in fig. 3, determining the validity of the second CP signal according to the plurality of sets of PWM wave signals includes:
S301, judging whether each group of PWM wave signals in the multiple groups of PWM wave signals is consistent.
Specifically, due to the influence of the change of the working state of the charging pile, the change of the charging state of the vehicle, the change of the external charging environment and the like, the second CP signal fed back to the charging pile by the vehicle may jump in the transmission process, so that the second CP signal cannot effectively prove the identity information of the vehicle.
And S3021, if the PWM wave signals of each group are consistent, determining that the second CP signal is effective, and acquiring an authentication result of the vehicle according to the second CP signal.
Specifically, in some embodiments of the present invention, assuming that the plurality of sets of PWM wave signals include a first PWM wave signal and a second PWM wave signal, and that the output level corresponding to the first PWM wave signal is 10010 and the output level corresponding to the second PWM wave signal is 10010, where 1 is indicated as a high level and 0 is indicated as a low level, the second CP signal may be determined to be valid, at this time, any one of the first PWM wave signal and the second PWM wave signal is taken as the second CP signal, and further, the authentication result of the vehicle may be obtained according to the second CP signal.
And S3022, if the PWM wave signals of each group are inconsistent, determining that the second CP signal is invalid, and controlling the charging pile to output a charging CP signal with the duty ratio of 100%.
Specifically, in some embodiments of the present invention, assuming that the plurality of sets of PWM wave signals include a first PWM wave signal and a second PWM wave signal, and the output level corresponding to the first PWM wave signal is 10010 and the output level corresponding to the second PWM wave signal is 10011, it may be determined that the second CP signal is invalid, and at this time, the charging pile is controlled to output the charging CP signal with a duty ratio of 100%, so that the charging pile is prohibited from providing the charging service to the vehicle.
It should be noted that, in other embodiments of the present invention, determining the validity of the second CP signal according to the multiple sets of PWM wave signals further includes: judging whether each group of PWM wave signals in the multiple groups of PWM wave signals are partially consistent, if so, determining that the second CP signal is effective, and determining the partially consistent PWM wave signal as an effective second CP signal, and if not, determining that the second CP signal is ineffective, for example, assuming that the multiple groups of PWM wave signals comprise a first PWM wave signal, a second PWM wave signal and a third PWM wave signal, and the output level corresponding to the first PWM wave signal is 10010, the output level corresponding to the second PWM wave signal is 10010, the output level corresponding to the third PWM wave signal is 10011, at the moment, the partially consistent PWM wave signals (the first PWM wave signal and the second PWM wave signal) exist, the third PWM wave signal is an individual signal jump, and the second CP signal can be determined to be effective, and any PWM wave signal in the first PWM wave signal and the second PWM wave signal is taken as the second CP signal.
Further, as shown in fig. 4, controlling the charging pile to output a corresponding charging CP signal according to the authentication result of the vehicle includes:
and S401, if the vehicle authentication result is that the vehicle passes, controlling the charging pile to output a charging CP signal with the duty ratio being the first duty ratio.
Specifically, in some embodiments of the present invention, if the vehicle authentication result obtained according to the second CP signal fed back by the vehicle is passing, the charging pile controller may control the charging pile to output a charging PC signal with a first duty cycle, so that the charging pile provides a charging service for the vehicle, where the first duty cycle is not specifically limited in this embodiment, and the first duty cycle may be set according to a brand, a model, and a current remaining state of electric quantity of the vehicle, for example, the first duty cycle may be 53%.
And S402, if the vehicle authentication result is not passed, controlling the charging pile to output a charging CP signal with the duty ratio of 100%.
Specifically, in some embodiments of the present invention, if the vehicle authentication result obtained according to the second CP signal fed back by the vehicle is failed, the charging pile controller may control the charging pile to output a PWM signal with a duty ratio of 100%, so as to prohibit the charging pile from providing the charging service for the vehicle.
Optionally, after the charging pile controller controls the charging pile to output the PWM signal with the duty ratio of 100%, the charging pile controller may further control the charging pile to send a prompt message to the user to prompt that the vehicle authentication fails, and may suggest that the user sends a preset vehicle identification code to the charging pile to open the relevant charging service, thereby being beneficial to expanding the service object of the charging pile, and eliminating the need for the user to continue driving the vehicle to search for other charging piles, reducing user operations, and optimizing the experience of the user for charging the vehicle.
Further, as shown in fig. 5, acquiring the authentication result of the vehicle according to the second CP signal includes:
s501, analyzing the second CP signal by using a preset encoding rule, and obtaining a vehicle identification code corresponding to the second CP signal.
It should be understood that the vehicle identification code of the vehicle is determined according to the national vehicle management standard and is composed of 17-bit characters, including information such as the manufacturer, the year, the vehicle type, the vehicle body type and code of the vehicle, the engine code and the assembly place, in other words, each vehicle identification code can correspond to a unique vehicle, so that the vehicle can generate a second CP signal according to the vehicle identification code of the vehicle and feed back to the charging pile, and the charging pile can realize vehicle authentication by using the second CP signal.
Specifically, since the second CP signal is a clock signal and the vehicle identification code is a 17-bit character, in some embodiments of the present invention, the second CP signal corresponding to the vehicle identification code may be generated by the vehicle according to a preset encoding rule, and further, after the charging pile controller receives the second CP signal through the CP port of the charging pile, the second CP signal may be parsed by using the preset encoding rule, so as to obtain the vehicle identification code corresponding to the second CP signal, so as to facilitate vehicle authentication.
The preset encoding rules are correspondingly described and illustrated below in conjunction with tables 1 to 4 and embodiments of the present invention.
TABLE 1
Numbers in VIN 0 1 2 3 4 5 6 7 8 9
Corresponding value 0 1 2 3 4 5 6 7 8 9
TABLE 2
TABLE 3 Table 3
Location in VIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Weighting coefficient 8 7 6 5 4 3 2 10 0 9 8 7 6 5 4 3 2
TABLE 4 Table 4
For example, if the charging pile is only opened to the polar fox authenticated vehicle, the vehicle may convert the vehicle identification code composed of 17-bit characters into 17-bit numbers according to a preset encoding rule, and then calculate a weighted sum value of the 17-bit numbers by combining the weighted sum value, and generate a second CP signal corresponding to the polar fox authenticated vehicle according to the weighted sum value, and then the vehicle feeds back the second CP signal to the charging pile, and then the charging pile parses the second CP signal according to the preset encoding rule, and reversely deduces a vehicle identification code corresponding to the second CP signal to perform vehicle authentication of the polar fox authenticated vehicle, where the weighted coefficient is not specifically limited in this embodiment, and the weighted coefficient may be calibrated correspondingly according to the type of the vehicle.
Specifically, taking table 4 as an example, assuming that the current vehicle is a polar fox authenticated vehicle and the vehicle VIN code is LFWADRJF111002345, obtaining a 17-bit value corresponding to the vehicle VIN code based on the correspondence of the above tables 1 to 3 as 36614916111002346, and obtaining a weighted sum value of the 17-bit value as 275 by combining the weighted coefficients, further generating a second CP signal corresponding to the vehicle VIN code (LFWADRJF 111002345) according to the weighted sum value 275, so as to analyze the second CP signal by using a preset encoding rule after the charging pile controller receives the second CP signal through the CP port of the charging pile, thereby obtaining a vehicle identification code LFWADRJF111002345 corresponding to the second CP signal, and determining that the vehicle is a polar fox authenticated vehicle.
Further, it is assumed that the charging pile is only opened to the north automobile, at this time, since the first 3-bit character of the vehicle identification code of the north automobile is the fixed character LNB, the first 3-bit character of the vehicle identification code can be converted into a 3-bit number according to the preset coding rule, and a second CP signal corresponding to the north automobile is generated according to the 3-bit number, and then the second CP is fed back to the charging pile, and the charging pile analyzes the second CP signal according to the preset coding rule, thereby obtaining the first three-bit character of the vehicle identification code corresponding to the second CP signal as LNB, and determining that the vehicle is the north automobile.
Further, assuming that the charging pile is open to all vehicles, at this time, no vehicle authentication is performed on the vehicles any more, and the user can directly use the charging function of the charging pile.
S502, judging whether the vehicle identification code is consistent with a preset vehicle identification code.
Specifically, in some embodiments of the present invention, since the vehicle identification code of each vehicle is unique, the charging pile controller may determine whether the vehicle has authority to use the charging pile by determining whether the vehicle identification code received by the CP port of the charging pile is consistent with a preset vehicle identification code previously bound by the user.
S5031, if the vehicle identification code is consistent with the preset vehicle identification code, determining that the authentication result of the vehicle is passed.
Specifically, in some embodiments of the present invention, if a preset vehicle identification code consistent with a vehicle identification code corresponding to the second CP signal exists in all preset vehicle identification codes stored in the charging pile, it is determined that the authentication result of the vehicle is passed, and at this time, the vehicle has a right to use the charging pile, and the charging pile is allowed to perform charging service for the vehicle.
S5032, if the vehicle identification code is not consistent with the preset vehicle identification code, determining that the authentication result of the vehicle is failed.
Specifically, in some embodiments of the present invention, if a preset vehicle identification code consistent with a vehicle identification code corresponding to the second CP signal does not exist in all preset vehicle identification codes stored in the charging pile, it is determined that the authentication result of the vehicle is failed, and at this time, the vehicle does not use the authority of the charging pile, and the charging pile is prohibited from performing charging service for the vehicle.
Further, the method further comprises: and acquiring and storing a preset vehicle identification code sent by the mobile terminal.
Specifically, in some embodiments of the present invention, a user may establish a communication relationship with a charging pile through a mobile terminal based on a 4G, 5G or bluetooth protocol, and further send a preset vehicle identification code to the charging pile through the mobile terminal, so that the charging pile stores the preset vehicle identification code, thereby establishing a binding relationship between a vehicle corresponding to the preset vehicle identification code and the charging pile.
Further, if the charging pile does not output the charging CP signal with the duty ratio being the first duty ratio within the second preset time, the method further comprises the steps of receiving a second CP signal fed back by the vehicle again, and acquiring an authentication result of the vehicle according to the second CP signal.
Specifically, in some embodiments of the present invention, when the vehicle authentication result is passing, the charging pile controller may output a charging CP signal with a first duty cycle through the CP port of the charging pile to provide a charging service for the vehicle, if the charging pile does not output the charging CP signal with the first duty cycle within a second preset time, the charging pile may be considered as not meeting the charging requirement of the vehicle, at this time, the vehicle may feed back the second CP signal to the charging pile again, and the charging pile controller may receive the second CP signal fed back by the vehicle again through the CP port of the charging pile and obtain the authentication result of the vehicle according to the second CP signal, where the second preset time is not specifically limited in this embodiment, for example, the second preset time may be 3 seconds.
Optionally, in some embodiments of the present invention, if the charging pile does not output the charging CP signal with the first duty cycle within 3 seconds, the charging pile will receive the second CP signal fed back by the vehicle again, and when the charging pile still does not output the charging CP signal with the duty cycle being the first duty cycle within 3 seconds, the vehicle will not send the second CP signal any more, where the number of times the vehicle sends the second CP signal is not specifically limited, that is, after the vehicle may send the second CP signal for the third time, the fourth time, the fifth time, etc., the vehicle may not send the second CP signal any more.
The following describes the specific flow steps of the charging control method with reference to fig. 6 and an embodiment of the present invention, and after the charging pile and the vehicle establish charging connection, step S1 is executed:
s1, acquiring a handshake signal fed back by a vehicle.
S2, controlling the charging pile to stop outputting the first CP signal according to the handshaking signal, and waiting for receiving a second CP signal fed back by the vehicle, wherein the second CP signal is generated by the vehicle according to the vehicle identification code and comprises a plurality of groups of PWM wave signals.
And S3, judging whether each group of PWM wave signals in the multiple groups of PWM wave signals are consistent, if so, executing the step S4, and if not, executing the step S5.
S4, determining that the second CP signal is effective, acquiring an authentication result of the vehicle according to the second CP signal, and executing step S6.
And S5, determining that the second CP signal is invalid, controlling the charging pile to output a charging CP signal with the duty ratio of 100%, and ending execution.
S6, analyzing the second CP signal by using a preset coding rule, and obtaining a vehicle identification code corresponding to the second CP signal.
S7, judging whether the vehicle identification code is consistent with the preset vehicle identification code, if so, executing the step S8, and if not, executing the step S9.
And S8, determining that the authentication result of the vehicle is passing, and controlling the charging pile to output a charging CP signal with the duty ratio being the first duty ratio.
And S9, determining that the authentication result of the vehicle is failed, and controlling the charging pile to output a charging CP signal with the duty ratio of 100%.
In summary, according to the charging control method of the embodiment of the invention, after detecting that the charging pile is in charging connection with the vehicle, the charging control method sends a first CP signal to the vehicle, further receives a second CP signal fed back by the vehicle, and obtains an authentication result of the vehicle according to the second CP signal, wherein the second CP signal is generated by the vehicle according to the vehicle identification code, so that the charging pile is controlled to output a corresponding charging CP signal according to the authentication result of the vehicle. Therefore, after the charging pile and the vehicle are in charging connection, information interaction and authentication between the charging pile and the vehicle can be realized quickly, so that the charging pile can output corresponding charging CP signals according to the authentication result of the vehicle, the vehicle authentication process is simplified, the vehicle charging efficiency is improved, user operation is reduced, and the user experience of charging the vehicle is optimized.
Based on the charging control method of the above embodiment, the embodiment of the present invention further provides a charging pile, where the charging pile includes a memory and a processor, and the memory stores a charging control program, and the charging control program implements the charging control method when executed by the processor.
In summary, according to the charging pile provided by the embodiment of the invention, after the charging pile and the vehicle are in charging connection, the information interaction and authentication between the charging pile and the vehicle can be quickly realized by executing the charging control program stored in the memory through the processor, so that the charging pile can output a corresponding charging CP signal according to the authentication result of the vehicle, thereby simplifying the vehicle authentication process, improving the vehicle charging efficiency, reducing the user operation and optimizing the experience of the user for charging the vehicle.
It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, for example, may be considered as a ordered listing of executable instructions for implementing logical functions, and may be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (3)

1. A charging control method, characterized by comprising:
after detecting that a charging pile is in charging connection with a vehicle, sending a first CP signal to the vehicle, wherein the first CP signal is used for initiating a handshake request to the vehicle;
After the vehicle detects a first CP signal sent by the charging pile, controlling a switch in the vehicle to be closed and to be opened after lasting a third preset time, enabling the vehicle to be connected to a corresponding handshake response circuit, and feeding back handshake signals to the charging pile;
Acquiring a handshake signal fed back by the vehicle;
According to the handshake signals, controlling the charging pile to stop outputting the first CP signal at a fourth preset time, and waiting for receiving a second CP signal fed back by the vehicle;
If the second CP signal fed back by the vehicle is not received within the first preset time, the charging pile is controlled to output a charging CP signal with the duty ratio of 100%;
Receiving a second CP signal fed back by the vehicle, wherein the second CP signal comprises a plurality of groups of PWM wave signals, determining the validity of the second CP signal according to the plurality of groups of PWM wave signals, and judging whether each group of PWM wave signals in the plurality of groups of PWM wave signals are consistent or not;
If each group of PWM wave signals in the multiple groups of PWM wave signals are consistent, determining that the second CP signal is effective, and acquiring an authentication result of the vehicle according to the second CP signal;
if each group of PWM wave signals in the multiple groups of PWM wave signals are inconsistent, determining that the second CP signal is invalid, and controlling the charging pile to output a charging CP signal with the duty ratio of 100%;
And judging whether each group of PWM wave signals in the multiple groups of PWM wave signals are partially consistent, if so, determining that the second CP signal is effective, determining that the PWM wave signals with the partially consistent are effective second CP signals, and if not, determining that the second CP signals are ineffective;
The second CP signals are generated by the vehicles according to the vehicle identification codes, the vehicle identification codes of each vehicle correspond to different numbers of the second CP signals, and the second CP signals are analyzed by utilizing a preset coding rule to obtain the vehicle identification codes corresponding to the second CP signals;
judging whether the vehicle identification code is consistent with a preset vehicle identification code or not;
if the vehicle identification code is consistent with the preset vehicle identification code, determining that the authentication result of the vehicle is passing;
If the vehicle identification code is not consistent with the preset vehicle identification code, determining that the authentication result of the vehicle is failed;
the authentication result of the vehicle is used for indicating whether the current vehicle allows the charging pile to be used or not, and the charging pile is controlled to output a corresponding charging CP signal according to the authentication result of the vehicle;
When the vehicle authentication result is that the vehicle passes, the charging pile controller outputs a charging CP signal with a duty ratio of a first duty ratio through a CP port of the charging pile so as to provide charging service for the vehicle, if the charging pile does not output the charging CP signal with the duty ratio of the first duty ratio within a second preset time, the charging pile is considered to not meet the charging requirement of the vehicle, the vehicle feeds back a second CP signal to the charging pile again, and the charging pile controller receives the second CP signal fed back by the vehicle again through the CP port of the charging pile and acquires the authentication result of the vehicle according to the second CP signal;
And determining that the authentication result of the vehicle is failed, and controlling the charging pile to output a charging CP signal with the duty ratio of 100%.
2. The charge control method according to claim 1, characterized in that the method further comprises:
and acquiring the preset vehicle identification code sent by the mobile terminal and storing the preset vehicle identification code.
3. A charging pile, characterized in that the charging pile comprises a memory and a processor, the memory having stored thereon a charging control program which, when executed by the processor, implements the charging control method according to any one of claims 1-2.
CN202310034421.5A 2023-01-10 2023-01-10 Charging control method and charging pile Active CN115891734B (en)

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