Electric vehicle digital certificate transmission tool based on PKI certificate system

Abstract

The utility model relates to the technical field of electric vehicles, in particular to an electric vehicle digital certificate transmission tool based on a PKI certificate system. Comprising an adapter and filling equipment, a mounting groove for mounting the adapter is reserved in the back of the filling equipment; two pins are arranged on a shell of the filling equipment and used for being connected with an adapter to charge the adapter. The adapter is wirelessly connected with the filling equipment through Bluetooth; the adapter is inserted into a data interface of the electric vehicle and is used for acquiring identity information of the vehicle-mounted terminal and transmitting the identity information to the filling equipment; the filling equipment communicates with the PKI certificate server through network connection; the sending module is used for sending the public key and the identity information of the vehicle-mounted terminal to the PKI server, so that the PKI server generates a digital certificate according to the public key and the identity information of the vehicle-mounted terminal; the digital certificate generated by the authentication center is also acquired and written into the electric vehicle main controller through the adapter; according to the utility model, through the filling tool and the detachable wirelessly-connected adapter, the electric vehicle certificate downloading device is adapted to electric vehicles of different models so as to wirelessly download certificates; the efficiency is greatly improved, and convenience is brought to users.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, in particular to an electric vehicle digital certificate transmission tool based on a PKI certificate system. Background Art

[0002] The Internet of Vehicles refers to the use of new-generation information and communication technologies to achieve all-round network connections between vehicles and people, vehicles and vehicles, vehicles and roads, and vehicles and service platforms. With the advancement and development of science and technology, the application of the Internet of Vehicles has gradually been introduced into the field of electric vehicles.

[0003] PKI technology is at the core of information security and a key and fundamental technology for the Internet of Vehicles (IoV). A CA, or Certificate Authority, is an authoritative body responsible for issuing and managing digital certificates. As a trusted third party in the IoV, it is responsible for verifying the legitimacy of public keys within the public key system. The CA issues a digital certificate to each user using a public key, enabling the distribution of the public key and verifying its legitimacy.

[0004] Existing IoV digital certificates are obtained and downloaded online after a vehicle is released to the market by connecting the vehicle's identification code (including information such as the manufacturer, year, model, body style and code, motor code, controller model, battery parameters, and assembly location) to a PKI certificate server via the internet or enterprise network. To ensure the security of digital certificates, the process of issuing digital certificates to terminals must be secure and reliable. This increases the complexity of certificate downloads and improves the user experience due to the added authentication and network transmission security. Therefore, helping users download certificates quickly and securely has become a pressing technical challenge. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background technology and propose an electric vehicle digital certificate transmission tool based on the PKI certificate system. Through a filling tool and a detachable wireless connection adapter, it is adapted to different models of electric vehicles to wirelessly download certificates; it greatly improves efficiency and facilitates users.

[0006] The technical solution of the utility model is an electric vehicle digital certificate transmission tool based on the PKI certificate system, including an adapter and a filling device;

[0007] The back of the filling device is equipped with a mounting slot for the adapter. Two pins are provided along the housing of the filling device for connecting with the adapter to charge the adapter. The adapter and the filling device are wirelessly connected via Bluetooth.

[0008] The adapter is inserted into the data interface of the electric vehicle to obtain the identity information of the on-board terminal and transmit it to the filling equipment; the filling equipment communicates with the PKI certificate server through a network connection; it is used to send the public key and the identity information of the on-board terminal to the PKI server, so that the PKI server generates a digital certificate based on the public key and the identity information of the on-board terminal; it is also used to obtain the digital certificate generated by the certification center and write it into the main controller of the electric vehicle through the adapter.

[0009] Preferably, the adapter includes a connector and a connector; the connector is provided with different models for plugging into the data interface of different types of electric vehicles;

[0010] The connector has a built-in Bluetooth module for connecting to the connector and wirelessly connecting to the filling equipment via Bluetooth.

[0011] Preferably, a pin slot connected to the electric vehicle data interface is provided at the front of the connector; the connector extends to one side to form a plug-in portion; a first identification block, a guide rail and a limit block are provided on the plug-in portion of the connector.

[0012] Preferably, the connecting member includes a docking portion and a communication portion;

[0013] The docking part is provided with a raised second identification block for docking with the first identification block to avoid reverse insertion; the plug-in part is inserted into the inner side of the docking part, and the first identification block is docked with the second identification block; at the same time, the limit block is clamped on the outer shell of the second identification block along the guide rail; the limit block abuts against the opening of the second identification block; and an adapter connected to the pin slot is provided inside the connector.

[0014] Preferably, an indicator light displaying the communication status is provided on the communication unit.

[0015] Preferably, guide grooves are provided on both sides of the communication portion, and contacts are reserved at the top of the guide grooves; the contacts are in contact with the pins for charging.

[0016] Preferably, the connector has a built-in rechargeable battery.

[0017] Preferably, the filling device includes an outer shell, a touch-sensitive display module, and a plurality of control buttons.

[0018] Preferably, raised elastic buffers are provided at the four corners of the outer shell.

[0019] Preferably, inwardly recessed gripping portions are provided on both sides of the bottom of the outer shell.

[0020] Compared with the prior art, the present invention has the following beneficial technical effects:

[0021] The utility model consists of two parts: a filling device and an adapter. Electric vehicle dealers assist users in downloading certificates. First, a mounting slot is reserved on the back of the filling device, in which the adapter can be fixed, and charging is performed through the reserved contacts and pins. The adapter itself transmits wirelessly with the filling device via Bluetooth. The adapter includes a connector and a connector. The connector can be replaced with different models as needed to adapt to electric vehicles with pin slots of different specifications. The connector is internally provided with an adapter that connects to the pin slot. Through the adapter, pin slots of different models are transferred to a universal format plug and connector, thereby realizing signal transmission. The utility model can be adapted to different vehicles. The dealer will connect the adapter with the appropriate connector to the controller of the electric vehicle, and transmit the certificate to the filling device via Bluetooth wirelessly. The filling device issues and downloads certificates online, improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the filling equipment according to an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the bottom structure of the filling equipment according to an embodiment of the present utility model;

[0024] Figure 3 This is a schematic structural diagram of an adapter according to an embodiment of the present utility model;

[0025] Figure 4 This is a schematic structural diagram of a connector according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic structural diagram of a connecting piece according to an embodiment of the present utility model.

[0027] Figure markings: 1. adapter; 2. filling equipment; 11. connector; 111. pin slot; 112. first identification block; 113. limit block; 114. guide rail; 115. plug-in part; 12. connector; 121. communication part; 122. indicator light; 123. docking part; 124. second identification block; 125. guide groove; 126. contact; 21. display module; 22. outer shell; 23. buffer; 24. control button; 25. grip; 26. mounting slot; 27. pin. DETAILED DESCRIPTION

[0028] Example 1

[0029] This utility model proposes a digital certificate transmission tool for electric vehicles based on the PKI certificate system, including: Figure 3 The adapter 1 shown and Figure 1 The filling device 2 shown;

[0030] like Figure 2As shown, the back of the filling device 2 has a mounting slot 26 reserved for mounting the adapter 1; two pins 27 are provided along the housing of the filling device 2; the pins 27 extend downward to the mounting slot 26; guide slots 125 are provided on both sides of the communication unit 121, and contacts 126 are reserved at the top of the guide slots 125; the contacts 126 contact the pins 27, thereby connecting with the adapter 1. The adapter 1 has a built-in rechargeable battery to charge the adapter 1; the adapter 1 and the filling device 2 are connected wirelessly via Bluetooth; the electric vehicle dealer uses the filling device 2 to assist the user in downloading the certificate;

[0031] Adapter 1 is inserted into the data interface of the electric vehicle to obtain the identity information of the on-board terminal and transmit it to the filling device 2; the filling device communicates with the PKI certificate server through a network connection; it is used to send the public key and the identity information of the on-board terminal to the PKI server, so that the PKI server generates a digital certificate based on the public key and the identity information of the on-board terminal; it is also used to obtain the digital certificate generated by the certification center and write it into the main controller of the electric vehicle through adapter 1.

[0032] In this embodiment, the adapter 1 includes a connector 11 and a connector 12. The connector 11 is provided with different models for plugging into the data interface of different types of electric vehicles. The connector 12 is internally provided with an adapter that is connected to the pin slot 111. Through the adapter, the pin slots 111 of different models are transferred to a universal format plug and connected to the connector 12, thereby realizing signal transmission.

[0033] In this embodiment, a pin slot 111 connected to the electric vehicle data interface is provided at the front of the connector 11; the connector 11 extends to one side to form a plug-in portion 115; a first identification block 112, a guide rail 114 and a limit block 113 are provided on the plug-in portion 115 of the connector 11.

[0034] Preferably, the connector 12 includes a docking portion 123 and a communication portion 121;

[0035] The docking portion 123 is provided with a raised second identification block 124 for docking with the first identification block 112 to avoid reverse insertion; the plug-in portion 115 is inserted into the inner side of the docking portion 123, and the first identification block 112 is docked with the second identification block 124; at the same time, the limit block 113 is stuck on the outer shell of the second identification block 124 along the guide rail 114; the limit block 113 abuts against the opening of the second identification block 124.

[0036] like Figure 5 As shown, the communication unit 121 is provided with an indicator light 122 for displaying the communication status.

[0037] In an optional embodiment, if Figure 1As shown, the filling device 2 includes an outer shell 22, a touch-sensitive display module 21, and a plurality of control buttons 24. The four corners of the outer shell 22 are provided with raised elastic buffers 23 to protect the filling device when it falls. Figure 2 As shown, inwardly recessed gripping portions 25 are provided on both sides of the bottom of the outer shell 22 to facilitate the user to improve the gripping feel when using it.

[0038] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A digital certificate transmission tool for electric vehicles based on the PKI certificate system, characterized in that: It comprises an adapter (1) and a filling device (2); The back of the filling device (2) is provided with a mounting groove (26) for mounting the adapter (1); two pins (27) are provided along the housing of the filling device (2) for connecting with the adapter (1) to charge the adapter (1); the adapter (1) and the filling device (2) are wirelessly connected via Bluetooth; The adapter (1) is inserted into the data interface of the electric vehicle to obtain the identity information of the vehicle terminal and transmit it to the filling device (2); the filling device communicates with the PKI certificate server via a network connection; Used to send the public key and vehicle terminal identity information to the PKI server, so that the PKI server generates a digital certificate based on the public key and vehicle terminal identity information; It is also used to obtain a digital certificate generated by a certification center and write it into the main controller of the electric vehicle through the adapter (1).

2. The electric vehicle digital certificate transmission tool based on the PKI certificate system according to claim 1, characterized in that: The adapter (1) comprises a connector (11) and a connector (12); the connector (11) is provided with different models for plugging into data interfaces of different types of electric vehicles; The connecting piece (12) has a built-in Bluetooth module for connecting with the connector (11) and wirelessly connecting with the filling device (2) via Bluetooth.

3. The electric vehicle digital certificate transmission tool based on the PKI certificate system according to claim 2, characterized in that: The front portion of the connector (11) is provided with a pin slot (111) connected to the electric vehicle data interface; the connector (11) extends to one side to form a plug-in portion (115); and a first identification block (112), a guide rail (114), and a limit block (113) are provided on the plug-in portion (115) of the connector (11).

4. The electric vehicle digital certificate transmission tool based on the PKI certificate system according to claim 3, characterized in that: The connecting member (12) includes a docking portion (123) and a communication portion (121); The docking portion (123) is provided with a raised second identification block (124) for docking with the first identification block (112) to avoid reverse insertion; the plug-in portion (115) is inserted into the inner side of the docking portion (123), and the first identification block (112) and the second identification block (124) are docked; at the same time, the limit block (113) is clamped on the outer shell of the second identification block (124) along the guide rail (114); the limit block (113) abuts against the opening of the second identification block (124); and an adapter connected to the pin slot (111) is provided inside the connector (12).

5. The electric vehicle digital certificate transmission tool based on the PKI certificate system according to claim 4, characterized in that: The communication unit (121) is provided with an indicator light (122) for displaying the communication status.

6. The electric vehicle digital certificate transmission tool based on the PKI certificate system according to claim 4, characterized in that: Guide grooves (125) are provided on both sides of the communication portion (121), and contacts (126) are reserved at the top of the guide grooves (125); the contacts (126) contact the pins (27) for charging.

7. The electric vehicle digital certificate transmission tool based on the PKI certificate system according to claim 1, characterized in that: The connecting piece (12) has a built-in rechargeable battery.

8. The electric vehicle digital certificate transmission tool based on the PKI certificate system according to claim 1, characterized in that: The filling device (2) comprises an outer shell (22), a touch-sensitive display module (21), and a plurality of control buttons (24).

9. The electric vehicle digital certificate transmission tool based on the PKI certificate system according to claim 8, characterized in that: The four corners of the outer shell (22) are provided with raised elastic buffer parts (23).

10. The electric vehicle digital certificate transmission tool based on the PKI certificate system according to claim 9, characterized in that: Inwardly recessed gripping portions (25) are provided on both sides of the bottom of the outer shell (22).

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