CN113085642A - Information transmission control method and device - Google Patents
Information transmission control method and device Download PDFInfo
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- CN113085642A CN113085642A CN202010017246.5A CN202010017246A CN113085642A CN 113085642 A CN113085642 A CN 113085642A CN 202010017246 A CN202010017246 A CN 202010017246A CN 113085642 A CN113085642 A CN 113085642A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/66—Data transfer between charging stations and vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The invention provides a control method and a device for information transmission, wherein the control method is applied to a vehicle and comprises the following steps: after a charging gun is inserted into a charging interface of a vehicle, receiving a first CP signal sent by a charging pile in which the charging gun is located through a charging control guide CP port; analyzing the first CP signal to obtain charging authentication information; verifying the charging authentication information; and when the verification is successful, sending the charging authentication information and the vehicle identification number VIN of the vehicle to the vehicle-end cloud platform, so that the charging service platform can obtain the charging authentication information and the VIN from the vehicle-end cloud platform. According to the scheme, the duty ratio, the frequency and the duration of the signal transmitted on the CP line are coded in a preset coding mode, so that automatic handshaking, parameter configuration and manufacturer identification operation between the vehicle and the charging pile are realized, and quick communication between the vehicle piles is realized. In the whole process, a user does not need to swipe a card or scan a code for authentication, so that the user operation can be reduced, and the user experience is improved.
Description
Technical Field
The invention relates to the field of automobiles, in particular to a method and a device for controlling information transmission.
Background
Generally, in the charging service process of the electric vehicle, the main authentication modes include card swiping authentication and APP code scanning authentication. The purpose is to bind the account of the owner of the charging vehicle with the metering node of the charging facility, so that the service charge of the vehicle at the terminal can be settled with a certain account, which is an indispensable part in the charging operation service.
At present, when the existing alternating-current charging pile in the market is used for carrying out alternating-current charging on the vehicle, due to the fact that a special communication wire harness is not arranged in the fast charging process, rapid information interaction cannot be achieved between the vehicle and the charging pile. In addition, because each charging equipment factory all uses respective card or APP that charges, the user need often purchase many cards that charge or download many kinds of APP and just can start and accomplish the operation of charging, leads to user experience not good enough, is unfavorable for the trade development.
Disclosure of Invention
The embodiment of the invention provides a control method and device for information transmission, which are used for solving the problems that in the prior art, rapid information interaction cannot be realized between a vehicle and a charging pile, and user experience is not good enough.
In order to solve the technical problems, the invention adopts the following technical scheme:
according to an aspect of the present invention, there is provided an information transmission control method applied to a vehicle, including:
after a charging gun is inserted into a charging interface of a vehicle, receiving a first CP signal sent by a charging pile where the charging gun is located through a charging control guide CP port;
analyzing the first CP signal to obtain charging authentication information;
verifying the charging authentication information;
and when the verification is successful, sending the charging authentication information and the vehicle identification number VIN of the vehicle to a vehicle end cloud platform, so that the charging service platform can obtain the charging authentication information and the VIN from the vehicle end cloud platform.
Optionally, the first CP signal includes a first PWM wave signal having a first preset rule and a second PWM wave signal having a second preset rule, where the second preset rule includes a period rule and a duty ratio rule of PWM wave transmission.
Optionally, the analyzing the first CP signal to obtain charging authentication information includes:
identifying the first CP signal according to the first PWM wave signal with the first preset rule;
determining a coding number corresponding to the second PWM wave signal with the second preset rule according to the relation between the preset PWM wave sending rule and a preset number;
and determining the charging authentication information according to the coded number.
Optionally, the charging authentication information includes a stake code and/or charging code information.
Optionally, the verifying the charging authentication information includes:
the second PWM wave signal comprises a plurality of groups of PWM waves, and each group of PWM waves in the plurality of groups of PWM waves comprises a preset level signal and a plurality of PWM waves with preset number and preset cycle frequency;
and correspondingly analyzing the multiple groups of PWM waves into multiple coding digital groups, comparing the multiple coding digital groups, and determining that the verification is successful if the proportion between the number of the coding digital groups with the same content and the total number of the coding digital groups exceeds a preset value.
Optionally, the control method further includes:
and after the charging gun is inserted into the vehicle charging interface, if the first CP signal is not detected for more than preset time, entering a preset charging process.
Optionally, after the charging authentication information and the vehicle identification number VIN of the vehicle are sent to a vehicle-end cloud platform, the control method further includes:
receiving a second CP signal transmitted by the CP port;
and responding to the second CP signal, and entering a charging process.
According to another aspect of the present invention, there is provided an information transmission control method applied to a charging pile, including:
after the charging gun is detected to be inserted into a charging interface of a vehicle, pile end information is reported to a pile end cloud platform;
receiving an authentication code sent by the pile end cloud platform, wherein the authentication code is generated by the charging service platform according to the pile end information after the charging service platform obtains the pile end information from the pile end cloud platform;
and guiding a CP port to send a first CP signal to the vehicle through charge control according to the authentication code.
Optionally, the control method further includes:
receiving a charging instruction which is sent by the pile end cloud platform and used for charging the vehicle, sending a second CP signal to the vehicle according to the charging instruction, and charging the vehicle.
Optionally, the first CP signal is a PWM wave generated according to a coding rule after combining the stub code and the authentication code;
the encoding rule refers to that different numbers correspond to PWM waves with different duty ratios, and the PWM waves have the same period frequency and the same number.
Optionally, the pile end information includes a pile code and a gun insertion state, where the gun insertion state is a connection state between a charging gun of the charging pile and a vehicle;
when the gun inserting state is that the charging gun is not connected with the vehicle, the CP level signal sent by the charging pile is a first preset level signal;
and when the gun inserting state is that the charging gun is connected with the vehicle, the CP level signal sent by the charging pile is changed from the first preset level signal to a second preset level signal.
According to another aspect of the present invention, there is provided an information transmission control method applied to a charging service platform, including:
acquiring pile end information reported by a target charging pile from a pile end cloud platform;
generating an authentication code according to the pile end information, and sending the authentication code to the pile end cloud platform;
acquiring charging authentication information and a vehicle identification number VIN of a vehicle sent by a vehicle-end cloud platform;
comparing and verifying the charging authentication information, the pile end information and the authentication code;
and when the comparison and verification are successful, sending a charging instruction of charging the vehicle by the target charging pile to the pile end cloud platform.
Optionally, the pile end information includes a pile code and a gun insertion state, where the gun insertion state is a connection state between a charging gun of the target charging pile and the vehicle.
Optionally, the comparing and verifying the charging authentication information, the pile tip information, and the authentication code includes:
the charging authentication information comprises pile codes and charging code information obtained by analyzing the first CP signals by the vehicle; and if the pile code obtained by the vehicle through analyzing the first CP signal is consistent with the pile code in the pile end information, and the charging code information obtained by the vehicle through analyzing the first CP signal is consistent with the authentication code, determining that the verification is successful.
According to another aspect of the present invention, there is provided a control apparatus for information transmission, applied to a vehicle, comprising:
the receiving module is used for receiving a first CP signal sent by a charging pile in which a charging gun is located through a charging control guide CP port after the charging gun is inserted into a charging interface of a vehicle;
the analysis module is used for analyzing the first CP signal to obtain charging authentication information;
the verification module is used for verifying the charging authentication information;
and the sending module is used for sending the charging authentication information and the Vehicle Identification Number (VIN) of the vehicle to a vehicle end cloud platform when the verification is successful, so that the charging service platform can obtain the charging authentication information and the VIN from the vehicle end cloud platform.
According to another aspect of the present invention, there is provided an information transmission control apparatus for a charging pile, including:
the first sending module is used for reporting the pile end information to the pile end cloud platform after the charging gun is detected to be inserted into a charging interface of the vehicle;
the first receiving module is used for receiving an authentication code sent by the pile end cloud platform, wherein the authentication code is generated by the charging service platform according to the pile end information after the charging service platform obtains the pile end information from the pile end cloud platform;
and the first analysis module is used for guiding a CP port to send a first CP signal to the vehicle through charging control according to the authentication code.
According to another aspect of the present invention, there is provided an information transmission control device applied to a charging service platform, including:
the first information acquisition module is used for acquiring pile end information reported by a target charging pile from a pile end cloud platform;
the information processing module is used for generating an authentication code according to the pile end information and sending the authentication code to the pile end cloud platform;
the second information acquisition module is used for acquiring the charging authentication information sent by the vehicle-end cloud platform and the vehicle identification number VIN of the vehicle;
the information checking module is used for comparing and verifying the charging authentication information, the pile end information and the authentication code;
and the instruction sending module is used for sending a charging instruction of charging the vehicle by the target charging pile to the pile end cloud platform when the comparison and verification are successful.
The invention has the beneficial effects that:
above-mentioned scheme, based on current alternating current charging's CP signal pencil, encode duty cycle, frequency and the length of a time to the online signal of transmitting of CP through predetermineeing the coding mode, realize the vehicle and fill the discernment between the electric pile and shake hands, parameter configuration and producer's discernment operation between the electric pile automatically promptly to quick communication between the car stake has been realized. In the whole process, a user does not need to swipe a card or scan a code for authentication, so that the user operation can be reduced, and the user experience is improved.
Drawings
Fig. 1 is a schematic diagram illustrating a method for controlling information transmission according to an embodiment of the present invention;
fig. 2 is a second schematic diagram illustrating a control method for information transmission according to an embodiment of the present invention;
fig. 3 is a third schematic diagram illustrating a control method for information transmission according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a control apparatus for information transmission according to an embodiment of the present invention;
fig. 5 is a second schematic diagram of a control device for information transmission according to an embodiment of the present invention;
fig. 6 is a third schematic diagram of a control apparatus for information transmission according to an embodiment of the present invention;
fig. 7 is a block diagram illustrating an implementation of a method for controlling information transmission according to an embodiment of the present invention;
fig. 8 is a control pilot timing chart of a control method for information transmission according to an embodiment of the present invention;
fig. 9 is a data transmission timing chart of a control method for information transmission according to an embodiment of the present invention;
fig. 10 is a flowchart illustrating that the information transmission control method according to the embodiment of the present invention is applied to a charging pile;
fig. 11 is a flowchart illustrating a method for controlling information transmission according to an embodiment of the present invention applied to a vehicle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The invention provides an information transmission control method and device, aiming at the problems that in the prior art, rapid information interaction cannot be realized between a vehicle and a charging pile and user experience is not good enough.
As shown in fig. 1, an embodiment of the present invention provides a method for controlling information transmission, applied to a vehicle, including:
s11: after a charging gun is inserted into a charging interface of a vehicle, a first CP signal sent by a charging pile where the charging gun is located through a charging control guide CP port is received.
It should be noted that, as shown in fig. 7, after the user inserts the charging gun into the charging interface of the vehicle, the user may automatically wake up the vehicle-end charging system, and the vehicle-end charging system recognizes gun head information, that is, a first CP signal sent by the charging pile where the charging gun is located is guided through the charging control CP port.
S12: and analyzing the first CP signal to obtain charging authentication information.
The vehicle analyzes the first CP signal according to the encoding rule, and identifies information such as the post code and the authentication code. The first CP signal is a CP signal with a special duty ratio.
S13: verifying the charging authentication information;
s14: and when the verification is successful, sending the charging authentication information and the vehicle identification number VIN of the vehicle to a vehicle end cloud platform, so that the charging service platform can obtain the charging authentication information and the VIN from the vehicle end cloud platform.
It should be noted that the vehicle sends the analyzed first CP signal, that is, the charging authentication information and the VIN, to the vehicle-side cloud platform, so that the charging service platform (in the embodiment of the present invention, the charging bar platform) obtains the information. Optionally, the charging authentication information includes a stake code and/or charging code information.
Optionally, the first CP signal includes a first PWM wave signal having a first preset rule and a second PWM wave signal having a second preset rule, where the second preset rule includes a period rule and a duty ratio rule of PWM wave transmission.
Optionally, the analyzing the first CP signal to obtain charging authentication information includes:
and identifying the first CP signal according to the first PWM wave signal with the first preset rule.
It should be noted that the first PWM wave signal having the first preset rule is used for identifying the first CP signal by the vehicle. After the vehicle-end charging controller is powered on, namely, after the vehicle-end charging system is automatically awakened, if the first PWM wave signal with the first preset rule is not detected (namely, the data packet sending identifier is not detected) after the preset time is exceeded, the plug-and-charge recognition function is exited, and a normal charging process is entered. If the first PWM wave signal is detected within a predetermined time, it indicates that the first CP signal has started to be transmitted. According to an embodiment of the present invention, the first PWM wave signal having the first predetermined rule is a PWM wave having a duty ratio of 5% and continuously transmitted for 5 cycles (requiring a duration of 5ms ± 1 ms), and meets the requirement of GB/T18487.1-2015 table a.5, and after the transmission is completed, the second PWM wave signal having the second predetermined rule in the first CP signal starts to be transmitted after 0.95ms ± 0.03 ms.
Determining a coding number corresponding to the second PWM wave signal with the second preset rule according to the relation between the preset PWM wave sending rule and a preset number;
and determining the charging authentication information according to the coded number.
It should be noted that plug-and-charge interactive information between the vehicle and the charging pile is interacted in a CP signal form, and the composition and requirements of the interactive information are as follows:
the interaction information comprises: and the data packet sending identifier and the data packet are respectively corresponding to a first PWM wave signal with a first preset rule and a second PWM wave signal with a second preset rule.
According to an embodiment of the present invention, the data packet includes: header, stub code (DATE1, DTAE2) and authentication code (DATE 3-DTAE 7).
Wherein, the packet head is transmitted in a 9V level signal lasting about 50ms +/-5 ms, and the post code and the authentication code are converted into a second PWM wave signal with a second preset rule according to the coding rule and transmitted.
Specifically, the data packets need to be sent continuously 3 times, the sending interval of each group of data packets should be between 100ms and 200ms, that is, after the 1 st data packet is sent, the 2 nd data packet is sent after the interval of 100ms to 200ms, and so on.
According to one embodiment of the present invention, the encoding rule is: the PWM waves with the frequency of 1KHZ and different duty ratios represent different numbers, and the specific expression is as follows:
the number 0 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 5%;
the number 1 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 15%;
numeral 2 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 25%;
numeral 3 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 35%;
the number 4 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 45%;
numeral 5 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 55%;
numeral 6 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 65%;
the number 7 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 75%;
the number 8 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 85%;
numeral 9 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 95%;
the charging pile prestores the coding rule into the processor in a form of a table or other forms, when the charging pile receives an authentication CODE (namely random CODE) issued by the charging bar platform, the coding rule prestored into the processor is inquired according to the pile CODE and the authentication CODE, the CP PWM duty ratio corresponding to the pile CODE and the authentication CODE is adapted, and a second PWM wave signal with a second preset rule is regulated and output.
The vehicle-side charging controller also prestores the coding rules into the processor in a table or other forms, and starts to start a second PWM wave signal when the vehicle recognizes the first PWM wave signal (namely the PWM wave with 5-period duty ratio of 5%) sent by the charging pile. And matching corresponding data according to the read CP PWM duty ratio and a coding rule, namely determining a coding number corresponding to the second PWM wave signal with the second preset rule, and sending an analysis result to a CAN bus according to a CAN protocol.
According to one embodiment of the present invention, when the point a supplier is used to charge the pile, for example, the pile code is 01, and the authentication code is 23456, the charging pile will continuously send out PWM with duty ratio corresponding to 0123456 for 3 times, that is, DATE1 ═ 0x0, DATE2 ═ 0x1, DATE3 ═ 0x2, DATE4 ═ 0x3, DATE5 ═ 0x4, DATE6 ═ 0x5, and DATE7 ═ 0x 6.
Optionally, the verifying the charging authentication information includes:
the second PWM wave signal comprises a plurality of groups of PWM waves, and each group of PWM waves in the plurality of groups of PWM waves comprises a preset level signal and a plurality of PWM waves with preset number and preset cycle frequency;
and correspondingly analyzing the multiple groups of PWM waves into multiple coding digital groups, comparing the multiple coding digital groups, and determining that the verification is successful if the proportion between the number of the coding digital groups with the same content and the total number of the coding digital groups exceeds a preset value.
Optionally, the control method further includes:
and after the charging gun is inserted into the vehicle charging interface, if the first CP signal is not detected for more than preset time, entering a preset charging process.
It should be noted that, after the vehicle-end charging controller is powered on, that is, after the vehicle-end charging system is automatically awakened, if the first CP signal is not detected for more than a predetermined time, specifically, if the first PWM wave signal having the first preset rule in the first CP signal is not detected (that is, the data packet transmission identifier is not detected), the plug-and-charge recognition function is exited, and a normal charging process is entered. According to one embodiment of the present invention, the first PWM wave signal with the first predetermined rule is a PWM wave with a duty ratio of 5% and continuously transmitted for 5 cycles (requiring 5ms ± 1ms duration).
Optionally, after the charging authentication information and the vehicle identification number VIN of the vehicle are sent to a vehicle-end cloud platform, the control method further includes:
receiving a second CP signal transmitted by the CP port;
and responding to the second CP signal, and entering a charging process.
As shown in fig. 11, a flow chart of the method for controlling information transmission according to the embodiment of the present invention is applied to a vehicle, where the peg code is 01, and the authentication code is 23456:
s101: and after the user inserts the charging gun into the charging interface of the vehicle, awakening the vehicle end charging system.
S102: whether the first PWM wave signal is detected within a predetermined time (the charging pile transmits the "packet transmission flag" to the vehicle in the form of the first PWM wave signal), that is, a PWM wave with a duty ratio of 5% for 5 cycles. If not, executing S103; if so, S104 is executed.
S103: and exiting the plug-and-charge recognition of the vehicle, and entering a preset charging process, namely a normal charging process.
S104: and the vehicle-end charging controller starts to acquire a second PWM wave signal after detecting the first PWM wave signal. A CP level signal (the charging post transmits "packet header of data packet" to the vehicle in the form of CP level signal) is detected, i.e., a 9V level signal lasting 50ms ± 5 ms.
S105: the number of times M the packet is received is increased by 1.
S106: and analyzing and identifying the CP signal duty ratio, and storing. Namely, receiving the PWM wave corresponding to the xth data DTATx (i.e. one of the numbers 0 to 6) in the data packet.
S107: is a 20ms CP level signal detected? If not, executing S106; yes, S108 is executed.
As shown in fig. 9, when the CP level signal of 20ms is detected in S107, it indicates that the PWM wave corresponding to the xth data DTATx is completely received.
S108: is the CP signal duty cycle 10 ± 3 cycles? If not, executing S109; yes, S110 is executed.
It should be noted that after the PWM wave corresponding to the xth data DTATx is received, validity verification needs to be performed on the received data.
S109: the data DTATx is invalid.
S110: data DTATx is valid, and 7 DTATx receiving operations indicate that a complete data packet is received.
S111: is the number of packet receptions M greater than 3? If yes, go to S112; otherwise, S104 is executed, that is, the next data packet is received until all the data packets are received for 3 times.
S112: compare the parsing results of the received 3 times data packet (i.e. compare the encoded number groups parsed from the first CP signal), if there are more than or equal to 2 times of the same result? If yes, go to step S113; otherwise, S114 is executed.
S113: and if the 3 groups of coded digit groups obtained by analysis are different, assigning the corresponding CAN message data to be 0 xFF.
S114: and if more than or equal to 2 groups of coding digital groups are the same, assigning the same coding digital groups to corresponding CAN messages, namely, assigning the same coding digital groups to a CAN bus and sending the same coding digital groups to the vehicle-end cloud platform through the T-box.
S115: waiting for entering a charging process.
In the embodiment of the invention, based on the existing CP signal wiring harness for alternating current charging, the duty ratio, the frequency and the duration of the signal transmitted on the CP line are coded in a preset coding mode, so that the recognition and the handshake between the vehicle and the charging pile are realized, namely, the automatic handshake, parameter configuration and manufacturer recognition operation between the vehicle and the charging pile are carried out, and the rapid communication between the vehicle piles is realized. In the whole process, a user does not need to swipe a card or scan a code for authentication, so that the user operation can be reduced, and the user experience is improved.
As shown in fig. 2, an embodiment of the present invention further provides an information transmission control method, which is applied to a charging pile, and includes:
s21: and after detecting that the charging gun is inserted into a charging interface of the vehicle, reporting pile end information to a pile end cloud platform.
It should be noted that the charging pile periodically reports pile tip information to the pile tip cloud platform. Optionally, the pile end information includes a pile code and a gun insertion state, where the gun insertion state is a connection state between a charging gun of the charging pile and a vehicle. After the charging gun is inserted into a charging interface of the vehicle, the gun inserting state indicates that the charging gun is connected with the vehicle.
S22: and receiving an authentication code sent by the pile end cloud platform, wherein the authentication code is generated by the charging service platform according to the pile end information after the charging service platform acquires the pile end information from the pile end cloud platform.
It should be noted that, as shown in fig. 7, according to an embodiment of the present invention, the charging service platform is a charging bar platform. After the charging bar platform acquires the pile CODEs and the gun inserting states from the pile end cloud platform, an authentication CODE, namely a CODE random CODE, is generated randomly, the authentication CODE is sent to the pile end cloud platform, and then the pile end cloud platform sends the authentication CODE to the charging pile.
S23: and guiding a CP port to send a first CP signal to the vehicle through charge control according to the authentication code.
It should be noted that the charging post transmits the post code and the authentication code to the vehicle as a first CP signal, which is a CP signal with a specific duty cycle (e.g., 5% duty cycle).
Optionally, the control method further includes:
receiving a charging instruction which is sent by the pile end cloud platform and used for charging the vehicle, sending a second CP signal to the vehicle according to the charging instruction, and charging the vehicle.
Optionally, the first CP signal is a PWM wave generated according to a coding rule after combining the stub code and the authentication code;
the encoding rule refers to that different numbers correspond to PWM waves with different duty ratios, and the PWM waves have the same period frequency and the same number.
When the gun inserting state is that the charging gun is not connected with the vehicle, the CP level signal sent by the charging pile is a first preset level signal;
and when the gun inserting state is that the charging gun is connected with the vehicle, the CP level signal sent by the charging pile is changed from the first preset level signal to a second preset level signal.
It should be noted that, according to an embodiment of the present invention, the first preset level signal is a 12V level signal, and the second preset level signal is a 9V level signal.
Specifically, the charging process is analyzed in conjunction with the timing diagrams shown in fig. 8-9, and the plug-and-play charging control timing diagram shown below:
it should be noted that the time error of the PWM sent by the charging pile is ± 1ms, and the error of the vehicle detection PWM time is required to be within ± 3 ms; the data packet is sent for three times, if charging can not be started after the three times of sending are finished, prompt information of plug and play charging failure needs to be pushed to a user, and the user is requested to manually start charging; if an instruction of manually starting charging is received in the plug-and-charge handshake process, the instruction of manually starting charging is preferentially executed. After receiving a charging starting instruction, entering a normal charging process (GB/T18487.1-2015) and sending out PWM delay time for 100ms transmission.
Aiming at the alternating current Charging pile and the electric automobile, the invention can realize the function of identifying Charging pile manufacturers by the electric automobile in the Charging Interface Control (CIC) function and the function of automatic Charging settlement, and realize the function of Charging when a user inserts a gun.
The control method for CP line information transmission can realize the functions of plug-and-play charging, charging pile manufacturer identification and normal alternating current charging, wherein the charging pile manufacturer identifies through pile codes; if an instruction of manually starting charging is received in the process of plug-and-charge handshake, the charging pile can switch the CP signal to the normal charging duty ratio at any time, and the normal charging function is preferentially executed.
As shown in fig. 10, which is a flowchart of applying the information transmission control method provided in the embodiment of the present invention to a charging pile, taking 0123456 as an example, a specific control method of the charging pile is as follows:
s201: the charging pile is in standby;
s202: whether an authentication CODE (namely a random CODE, such as 23456) randomly generated by the charging bar platform and sent by the pile end cloud platform is received;
s203: the combined pile code (for example: 01) and the authentication code are combined to become 0123456;
s204: and inquiring an encoding rule, and determining CP PWM duty ratios corresponding to the numbers 0123456 respectively.
S205: and sending a data packet sending identifier (sent in the form of a first PWM wave signal, namely PWM with 5-period duty ratio of 5%) to the vehicle end.
S206: is the transmission of the packet transmission identifier completed? Otherwise, executing S205; yes, S207 is executed.
S207: the CP switches S1 to 12V are switched to transmit the packet header (signaled at 9V level) for 50 ms.
S208: is the data packet header sent out? Otherwise, executing S207; yes, S209 is executed.
S209: switching CP switch S1 to PWM begins sending data 0 (i.e., 10 PWMs with 5% duty cycle).
S210: is data 0 sent complete? Otherwise, executing S209; yes, S211 is executed.
S211: at switching CP switches S1 to 12V, a CP level signal (transmitted as a 9V level signal) is transmitted for 20 ms.
S212: and adjusting the CP duty ratio according to the coding rule, and starting to sequentially send data 1-6.
S213: is the first pass packet (0123456) sent all over? Otherwise, executing S212; yes, S214 is executed.
S214: sending the N +1 th time;
s215: n > 3? Otherwise, executing S214; yes, S216 is executed.
S216: the CP switches S1 to 12V are switched, and the CP level signal (sent as a 9V level signal) is continuously sent until receiving a charging instruction sent by the charging bar.
S217: the vehicle is charged.
S218: and (6) ending.
In the embodiment of the invention, based on the existing CP signal wiring harness for alternating current charging, the duty ratio, the frequency and the duration of the signal transmitted on the CP line are coded in a preset coding mode, so that the recognition and the handshake between the vehicle and the charging pile are realized, namely, the automatic handshake, parameter configuration and manufacturer recognition operation between the vehicle and the charging pile are carried out, and the rapid communication between the vehicle piles is realized. In the whole process, a user does not need to swipe a card or scan a code for authentication, so that the user operation can be reduced, and the user experience is improved.
As shown in fig. 3, an embodiment of the present invention further provides a method for controlling information transmission, which is applied to a charging service platform, and includes:
s31: acquiring pile end information reported by a target charging pile from a pile end cloud platform;
s32: generating an authentication code according to the pile end information, and sending the authentication code to the pile end cloud platform;
s33: acquiring charging authentication information and a vehicle identification number VIN of a vehicle sent by a vehicle-end cloud platform;
s34: and comparing and verifying the charging authentication information, the pile end information and the authentication code.
It should be noted that, according to one embodiment of the present invention, the charging service platform is a charging bar platform, and the charging bar platform performs comparison and verification according to information (the charging authentication information and the VIN) uploaded by the vehicle, information (i.e., a stake code) uploaded by the charging pile, and information such as the authentication code generated by the charging bar platform. If the verification is successful, the charging bar platform issues a charging instruction of the charging pile.
S35: and when the comparison and verification are successful, sending a charging instruction of charging the vehicle by the target charging pile to the pile end cloud platform.
Optionally, the pile end information includes a pile code and a gun insertion state, where the gun insertion state is a connection state between a charging gun of the target charging pile and the vehicle.
Optionally, the comparing and verifying the charging authentication information, the pile tip information, and the authentication code includes:
the charging authentication information comprises pile codes and charging code information obtained by analyzing the first CP signals by the vehicle; and if the pile code obtained by the vehicle through analyzing the first CP signal is consistent with the pile code in the pile end information, and the charging code information obtained by the vehicle through analyzing the first CP signal is consistent with the authentication code, determining that the verification is successful.
In the embodiment of the invention, based on the existing CP signal wiring harness for alternating current charging, the duty ratio, the frequency and the duration of the signal transmitted on the CP line are coded in a preset coding mode, so that the recognition and the handshake between the vehicle and the charging pile are realized, namely, the automatic handshake, parameter configuration and manufacturer recognition operation between the vehicle and the charging pile are carried out, and the rapid communication between the vehicle piles is realized. In the whole process, a user does not need to swipe a card or scan a code for authentication, so that the user operation can be reduced, and the user experience is improved.
As shown in fig. 4, an embodiment of the present invention further provides a control apparatus for information transmission, which is applied to a vehicle, and includes:
the receiving module 41 is configured to receive a first CP signal sent by a charging pile in which a charging gun is located through a charging control guide CP port after the charging gun is inserted into a charging interface of a vehicle;
it should be noted that, as shown in fig. 7, after the user inserts the charging gun into the charging interface of the vehicle, the user may automatically wake up the vehicle-end charging system, and the vehicle-end charging system recognizes gun head information, that is, a first CP signal sent by the charging pile where the charging gun is located is guided through the charging control CP port.
And the analyzing module 42 is configured to analyze the first CP signal to obtain charging authentication information.
The vehicle analyzes the first CP signal according to the encoding rule, and identifies information such as the post code and the authentication code. The first CP signal is a CP signal with a special duty ratio.
A verification module 43, configured to verify the charging authentication information;
the sending module 44 is configured to send the charging authentication information and the vehicle identification number VIN of the vehicle to a vehicle-end cloud platform when the verification is successful, so that the charging service platform can obtain the charging authentication information and the VIN from the vehicle-end cloud platform.
It should be noted that the vehicle sends the analyzed first CP signal, that is, the charging authentication information and the VIN, to the vehicle-side cloud platform, so that the charging service platform (in the embodiment of the present invention, the charging bar platform) obtains the information. Optionally, the charging authentication information includes a stake code and/or charging code information.
Optionally, the first CP signal includes a first PWM wave signal having a first preset rule and a second PWM wave signal having a second preset rule, where the second preset rule includes a period rule and a duty ratio rule of PWM wave transmission.
Optionally, the parsing module 42 includes:
and the identification unit is used for identifying the first CP signal according to the first PWM wave signal with the first preset rule.
It should be noted that the first PWM wave signal having the first preset rule is used for identifying the first CP signal by the vehicle. After the vehicle-end charging controller is powered on, namely, after the vehicle-end charging system is automatically awakened, if the first PWM wave signal with the first preset rule is not detected (namely, the data packet sending identifier is not detected) after the preset time is exceeded, the plug-and-charge recognition function is exited, and a normal charging process is entered. If the first PWM wave signal is detected within a predetermined time, it indicates that the first CP signal has started to be transmitted. According to an embodiment of the present invention, the first PWM wave signal having the first predetermined rule is a PWM wave having a duty ratio of 5% and continuously transmitted for 5 cycles (requiring a duration of 5ms ± 1 ms), and meets the requirement of GB/T18487.1-2015 table a.5, and after the transmission is completed, the second PWM wave signal having the second predetermined rule in the first CP signal starts to be transmitted after 0.95ms ± 0.03 ms.
The analysis unit is used for determining a coding number corresponding to the second PWM wave signal with the second preset rule according to the relation between the preset PWM wave sending rule and the preset number;
and the processing unit is used for determining the charging authentication information according to the coded numbers.
It should be noted that plug-and-charge interactive information between the vehicle and the charging pile is interacted in a CP signal form, and the composition and requirements of the interactive information are as follows:
the interaction information comprises: and the data packet sending identifier and the data packet are respectively corresponding to a first PWM wave signal with a first preset rule and a second PWM wave signal with a second preset rule.
The data packet includes: header, stub code (DATE1, DTAE2) and authentication code (DATE 3-DTAE 7).
According to an embodiment of the present invention, the data packet includes: header, stub code (DATE1, DTAE2) and authentication code (DATE 3-DTAE 7).
Wherein, the packet head is transmitted in a 9V level signal lasting about 50ms +/-5 ms, and the post code and the authentication code are converted into a second PWM wave signal with a second preset rule according to the coding rule and transmitted.
Specifically, the data packets need to be sent continuously 3 times, the sending interval of each group of data packets should be between 100ms and 200ms, that is, after the 1 st data packet is sent, the 2 nd data packet is sent after the interval of 100ms to 200ms, and so on.
According to one embodiment of the present invention, the encoding rule is: the PWM waves with the frequency of 1KHZ and different duty ratios represent different numbers, and the specific expression is as follows:
the number 0 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 5%;
the number 1 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 15%;
numeral 2 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 25%;
numeral 3 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 35%;
the number 4 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 45%;
numeral 5 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 55%;
numeral 6 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 65%;
the number 7 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 75%;
the number 8 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 85%;
numeral 9 represents 10 PWM waves with a cycle frequency of 1KHZ and a duty cycle of 95%;
the charging pile prestores the coding rule into the processor in a form of a table or other forms, when the charging pile receives an authentication CODE (namely random CODE) issued by the charging bar platform, the coding rule prestored into the processor is inquired according to the pile CODE and the authentication CODE, and a second PWM wave signal with a second preset rule is output by adapting to CP PWM duty ratio regulation corresponding to the pile CODE and the authentication CODE.
The vehicle-side charging controller also prestores the coding rules into the processor in a table or other forms, and starts to start a second PWM wave signal when the vehicle recognizes the first PWM wave signal (namely the PWM wave with 5-period duty ratio of 5%) sent by the charging pile. And matching corresponding data according to the read CP PWM duty ratio and a coding rule, namely determining a coding number corresponding to the second PWM wave signal with the second preset rule, and sending an analysis result to a CAN bus according to a CAN protocol.
According to one embodiment of the present invention, when the point a provider is used to charge the pile, for example, the pile code is 01, and the authentication code is 23456, the charging pile will continuously send out PWM with duty ratio corresponding to 0123456 for 3 times, that is, DATE1 ═ 0x0, DATE2 ═ 0x1, DATE3 ═ 0x2, DATE4 ═ 0x3, DATE5 ═ 0x4, DATE6 ═ 0x5, and DATE7 ═ 0x 6.
Optionally, the verifying the charging authentication information includes:
the second PWM wave signal comprises a plurality of groups of PWM waves, and each group of PWM waves in the plurality of groups of PWM waves comprises a preset level signal and a plurality of PWM waves with preset number and preset cycle frequency;
and correspondingly analyzing the multiple groups of PWM waves into multiple coding digital groups, comparing the multiple coding digital groups, and determining that the verification is successful if the proportion between the number of the coding digital groups with the same content and the total number of the coding digital groups exceeds a preset value.
Optionally, the control device further comprises:
and the processing module is used for entering a preset charging process if the first CP signal is not detected after the charging gun is inserted into the vehicle charging interface for more than preset time.
It should be noted that, after the vehicle-end charging controller is powered on, that is, after the vehicle-end charging system is automatically awakened, if the first CP signal is not detected for more than a predetermined time, specifically, if the first PWM wave signal having the first preset rule in the first CP signal is not detected (that is, the data packet transmission identifier is not detected), the plug-and-charge recognition function is exited, and a normal charging process is entered. According to one embodiment of the present invention, the first PWM wave signal with the first predetermined rule is a PWM wave with a duty ratio of 5% and continuously transmitted for 5 cycles (requiring 5ms ± 1ms duration).
Optionally, after the sending module 44 sends the charging authentication information and the vehicle identification number VIN of the vehicle to the vehicle-end cloud platform, the sending module is further configured to:
receiving a second CP signal transmitted by the CP port;
and responding to the second CP signal, and entering a charging process.
In the embodiment of the invention, based on the existing CP signal wiring harness for alternating current charging, the duty ratio, the frequency and the duration of the signal transmitted on the CP line are coded in a preset coding mode, so that the recognition and the handshake between the vehicle and the charging pile are realized, namely, the automatic handshake, parameter configuration and manufacturer recognition operation between the vehicle and the charging pile are carried out, and the rapid communication between the vehicle piles is realized. In the whole process, a user does not need to swipe a card or scan a code for authentication, so that the user operation can be reduced, and the user experience is improved.
As shown in fig. 5, an embodiment of the present invention further provides an information transmission control apparatus, which is applied to a charging pile, and includes:
the first sending module 51 is configured to report the pile tip information to the pile tip cloud platform after detecting that the charging gun is inserted into the charging interface of the vehicle.
It should be noted that the charging pile periodically reports pile tip information to the pile tip cloud platform. Optionally, the pile end information includes a pile code and a gun insertion state, where the gun insertion state is a connection state between a charging gun of the charging pile and a vehicle. After the charging gun is inserted into a charging interface of the vehicle, the gun inserting state indicates that the charging gun is connected with the vehicle.
The first receiving module 52 is configured to receive an authentication code sent by the pile cloud platform, where the authentication code is generated by the charging service platform according to the pile information after the charging service platform acquires the pile information from the pile cloud platform.
It should be noted that, as shown in fig. 7, according to an embodiment of the present invention, the charging service platform is a charging bar platform. After the charging bar platform acquires the pile CODEs and the gun inserting states from the pile end cloud platform, an authentication CODE, namely a CODE random CODE, is generated randomly, the authentication CODE is sent to the pile end cloud platform, and then the pile end cloud platform sends the authentication CODE to the charging pile.
And the first analysis module 53 is configured to send a first CP signal to the vehicle through a charging control pilot CP port according to the authentication code.
It should be noted that the charging post transmits the post code and the authentication code to the vehicle as a first CP signal, which is a CP signal with a specific duty cycle (e.g., 5% duty cycle).
Optionally, the control device further comprises:
and the charging processing module is used for receiving a charging instruction which is sent by the pile end cloud platform and used for charging the vehicle, sending a second CP signal to the vehicle according to the charging instruction, and charging the vehicle.
Optionally, the first CP signal is a PWM wave generated according to a coding rule after combining the stub code and the authentication code;
the encoding rule refers to that different numbers correspond to PWM waves with different duty ratios, and the PWM waves have the same period frequency and the same number.
When the gun inserting state is that the charging gun is not connected with the vehicle, the CP level signal sent by the charging pile is a first preset level signal;
and when the gun inserting state is that the charging gun is connected with the vehicle, the CP level signal sent by the charging pile is changed from the first preset level signal to a second preset level signal.
It should be noted that, according to an embodiment of the present invention, the first preset level signal is a 12V level signal, and the second preset level signal is a 9V level signal.
Specifically, the charging process is analyzed in conjunction with the timing diagrams shown in fig. 8-9, and the plug-and-play charging control timing diagram shown below:
it should be noted that the time error of the PWM sent by the charging pile is ± 1ms, and the error of the vehicle detection PWM time is required to be within ± 3 ms; the data packet is sent for three times, if charging can not be started after the three times of sending are finished, prompt information of plug and play charging failure needs to be pushed to a user, and the user is requested to manually start charging; if an instruction of manually starting charging is received in the plug-and-charge handshake process, the instruction of manually starting charging is preferentially executed. After receiving a charging starting instruction, entering a normal charging process (GB/T18487.1-2015) and sending out PWM delay time for 100ms transmission.
Aiming at the alternating current Charging pile and the electric automobile, the invention can realize the function of identifying Charging pile manufacturers by the electric automobile in the Charging Interface Control (CIC) function and the function of automatic Charging settlement, and realize the function of Charging when a user inserts a gun.
The control method for CP line information transmission can realize the functions of plug-and-play charging, charging pile manufacturer identification and normal alternating current charging, wherein the charging pile manufacturer identifies through pile codes; if an instruction of manually starting charging is received in the process of plug-and-charge handshake, the charging pile can switch the CP signal to the normal charging duty ratio at any time, and the normal charging function is preferentially executed.
In the embodiment of the invention, based on the existing CP signal wiring harness for alternating current charging, the duty ratio, the frequency and the duration of the signal transmitted on the CP line are coded in a preset coding mode, so that the recognition and the handshake between the vehicle and the charging pile are realized, namely, the automatic handshake, parameter configuration and manufacturer recognition operation between the vehicle and the charging pile are carried out, and the rapid communication between the vehicle piles is realized. In the whole process, a user does not need to swipe a card or scan a code for authentication, so that the user operation can be reduced, and the user experience is improved.
As shown in fig. 6, an embodiment of the present invention further provides a control device for information transmission, which is applied to a charging service platform, and includes:
the first information acquisition module 61 is configured to acquire pile end information reported by the target charging pile from a pile end cloud platform;
the information processing module 62 is configured to generate an authentication code according to the pile end information, and send the authentication code to the pile end cloud platform;
the second information obtaining module 63 is configured to obtain the charging authentication information and the vehicle identification number VIN of the vehicle sent by the vehicle-side cloud platform;
and the information checking module 64 is used for comparing and verifying the charging authentication information, the pile tip information and the authentication code.
It should be noted that, according to one embodiment of the present invention, the charging service platform is a charging bar platform, and the charging bar platform performs comparison and verification according to information (the charging authentication information and the VIN) uploaded by the vehicle, information (i.e., a stake code) uploaded by the charging pile, and information such as the authentication code generated by the charging bar platform. If the verification is successful, the charging bar platform issues a charging instruction of the charging pile.
And the instruction sending module 65 is configured to send a charging instruction that the target charging pile charges the vehicle to the pile-end cloud platform when the comparison and verification are successful.
Optionally, the pile end information includes a pile code and a gun insertion state, where the gun insertion state is a connection state between a charging gun of the target charging pile and the vehicle.
Optionally, the comparing and verifying the charging authentication information, the pile tip information, and the authentication code includes:
the charging authentication information comprises pile codes and charging code information obtained by analyzing the first CP signals by the vehicle; and if the pile code obtained by the vehicle through analyzing the first CP signal is consistent with the pile code in the pile end information, and the charging code information obtained by the vehicle through analyzing the first CP signal is consistent with the authentication code, determining that the verification is successful.
In the embodiment of the invention, based on the existing CP signal wiring harness for alternating current charging, the duty ratio, the frequency and the duration of the signal transmitted on the CP line are coded in a preset coding mode, so that the recognition and the handshake between the vehicle and the charging pile are realized, namely, the automatic handshake, parameter configuration and manufacturer recognition operation between the vehicle and the charging pile are carried out, and the rapid communication between the vehicle piles is realized. In the whole process, a user does not need to swipe a card or scan a code for authentication, so that the user operation can be reduced, and the user experience is improved.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (17)
1. A control method for information transmission is applied to a vehicle, and is characterized by comprising the following steps:
after a charging gun is inserted into a charging interface of a vehicle, receiving a first CP signal sent by a charging pile where the charging gun is located through a charging control guide CP port;
analyzing the first CP signal to obtain charging authentication information;
verifying the charging authentication information;
and when the verification is successful, sending the charging authentication information and the vehicle identification number VIN of the vehicle to a vehicle end cloud platform, so that the charging service platform can obtain the charging authentication information and the VIN from the vehicle end cloud platform.
2. The control method according to claim 1, wherein the first CP signal includes a first PWM wave signal having a first preset rule and a second PWM wave signal having a second preset rule, wherein the second preset rule includes a period rule and a duty ratio rule of PWM wave transmission.
3. The method as claimed in claim 2, wherein the parsing the first CP signal to obtain charging authentication information comprises:
identifying the first CP signal according to the first PWM wave signal with the first preset rule;
determining a coding number corresponding to the second PWM wave signal with the second preset rule according to the relation between the preset PWM wave sending rule and a preset number;
and determining the charging authentication information according to the coded number.
4. The control method according to claim 3, wherein the charging authentication information includes a stake code and/or charging code information.
5. The control method of claim 3, wherein verifying the charging authentication information comprises:
the second PWM wave signal comprises a plurality of groups of PWM waves, and each group of PWM waves in the plurality of groups of PWM waves comprises a preset level signal and a plurality of PWM waves with preset number and preset cycle frequency;
and correspondingly analyzing the multiple groups of PWM waves into multiple coding digital groups, comparing the multiple coding digital groups, and determining that the verification is successful if the proportion between the number of the coding digital groups with the same content and the total number of the coding digital groups exceeds a preset value.
6. The control method according to claim 2, characterized by further comprising:
and after the charging gun is inserted into the vehicle charging interface, if the first CP signal is not detected for more than preset time, entering a preset charging process.
7. The control method according to claim 1, wherein after the charging authentication information and the vehicle identification number VIN of the vehicle are transmitted to a vehicle-end cloud platform, the control method further comprises:
receiving a second CP signal transmitted by the CP port;
and responding to the second CP signal, and entering a charging process.
8. A control method of information transmission is applied to a charging pile, and is characterized by comprising the following steps:
after the charging gun is detected to be inserted into a charging interface of a vehicle, pile end information is reported to a pile end cloud platform;
receiving an authentication code sent by the pile end cloud platform, wherein the authentication code is generated by the charging service platform according to the pile end information after the charging service platform obtains the pile end information from the pile end cloud platform;
and guiding a CP port to send a first CP signal to the vehicle through charge control according to the authentication code.
9. The control method according to claim 8, characterized by further comprising:
receiving a charging instruction which is sent by the pile end cloud platform and used for charging the vehicle, sending a second CP signal to the vehicle according to the charging instruction, and charging the vehicle.
10. The control method according to claim 8, wherein the first CP signal is a PWM wave generated according to a coding rule after combining the post code and the authentication code;
the encoding rule refers to that different numbers correspond to PWM waves with different duty ratios, and the PWM waves have the same period frequency and the same number.
11. The control method according to claim 10,
the pile end information comprises a pile code and a gun inserting state, wherein the gun inserting state refers to a connection state between a charging gun of the charging pile and a vehicle;
when the gun inserting state is that the charging gun is not connected with the vehicle, the CP level signal sent by the charging pile is a first preset level signal;
and when the gun inserting state is that the charging gun is connected with the vehicle, the CP level signal sent by the charging pile is changed from the first preset level signal to a second preset level signal.
12. A control method of information transmission is applied to a charging service platform and is characterized by comprising the following steps:
acquiring pile end information reported by a target charging pile from a pile end cloud platform;
generating an authentication code according to the pile end information, and sending the authentication code to the pile end cloud platform;
acquiring charging authentication information and a vehicle identification number VIN of a vehicle sent by a vehicle-end cloud platform;
comparing and verifying the charging authentication information, the pile end information and the authentication code;
and when the comparison and verification are successful, sending a charging instruction of charging the vehicle by the target charging pile to the pile end cloud platform.
13. The control method according to claim 12, wherein the pile tip information includes a pile code and a gun insertion state, and the gun insertion state is a connection state between a charging gun of the target charging pile and the vehicle.
14. The control method according to claim 13, wherein the comparing and verifying the charging authentication information, the stub information and the authentication code comprises:
the charging authentication information comprises pile codes and charging code information obtained by analyzing the first CP signals by the vehicle; and if the pile code obtained by the vehicle through analyzing the first CP signal is consistent with the pile code in the pile end information, and the charging code information obtained by the vehicle through analyzing the first CP signal is consistent with the authentication code, determining that the verification is successful.
15. A control device for information transmission, which is applied to a vehicle, is characterized by comprising:
the receiving module is used for receiving a first CP signal sent by a charging pile in which a charging gun is located through a charging control guide CP port after the charging gun is inserted into a charging interface of a vehicle;
the analysis module is used for analyzing the first CP signal to obtain charging authentication information;
the verification module is used for verifying the charging authentication information;
and the sending module is used for sending the charging authentication information and the Vehicle Identification Number (VIN) of the vehicle to a vehicle end cloud platform when the verification is successful, so that the charging service platform can obtain the charging authentication information and the VIN from the vehicle end cloud platform.
16. The utility model provides an information transmission's controlling means is applied to and fills electric pile, its characterized in that includes:
the first sending module is used for reporting the pile end information to the pile end cloud platform after the charging gun is detected to be inserted into a charging interface of the vehicle;
the first receiving module is used for receiving an authentication code sent by the pile end cloud platform, wherein the authentication code is generated by the charging service platform according to the pile end information after the charging service platform obtains the pile end information from the pile end cloud platform;
and the first analysis module is used for guiding a CP port to send a first CP signal to the vehicle through charging control according to the authentication code.
17. The utility model provides a controlling means of information transmission, is applied to the service platform that charges, its characterized in that includes:
the first information acquisition module is used for acquiring pile end information reported by a target charging pile from a pile end cloud platform;
the information processing module is used for generating an authentication code according to the pile end information and sending the authentication code to the pile end cloud platform;
the second information acquisition module is used for acquiring the charging authentication information sent by the vehicle-end cloud platform and the vehicle identification number VIN of the vehicle;
the information checking module is used for comparing and verifying the charging authentication information, the pile end information and the authentication code;
and the instruction sending module is used for sending a charging instruction of charging the vehicle by the target charging pile to the pile end cloud platform when the comparison and verification are successful.
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