Charging control method and system based on VIN (Vehicle Identification Number)

Abstract

The invention discloses a charging control method and system based on a vehicle VI N code. The method comprises the steps that a preset vehicle VI N code is stored in a cloud server; during charging, after a charging gun is inserted into a charging pile, a VI N code of a to-be-charged vehicle is obtained through communication interaction between the charging pile and the vehicle; the charging pile uploads the obtained VI N code of the to-be-charged vehicle to the cloud server; the cloud server compares and verifies the VI N code of the to-be-charged vehicle with a preset vehicle VI N code and feeds back a verification result to the charging pile, and the charging pile controls whether charging is started or not according to the verification result. One-key quick charging is achieved through the VI N code, charging control can be quickly completed and payment can be automatically completed only by triggering the starting key through manual operation, the operation process is saved, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the field of electric vehicle charging, and in particular to a charging control method and system based on a vehicle VIN code. Background Art

[0002] Charging electric vehicles involves payment identification. With the widespread use of electric vehicles, the number of chargers for charging electric vehicles is increasing. However, the long charging time, inconvenience and inconvenience of charging new energy vehicles are still the pain points that restrict the development of new energy vehicles.

[0003] Taking the charging of new energy electric vehicles as an example, the charging of electric vehicles in the prior art generally adopts mobile phone APP to scan code for charging. The process is as follows: after the vehicle enters the charging pile, the gun is inserted to allow the electric vehicle to connect to the charging pile. The user needs to use the mobile phone APP to scan the code to log in or use the charging point card to swipe the card and other operations before the charging process of the electric vehicle can be started. For example, the mobile phone APP implementation method of the cross-application charging system of electric vehicle charging piles with patent application number 201610181925.X. The present invention includes the following steps: (1) The user logs in to the mobile phone APP, and then obtains the charging pile code by scanning the code, manually entering or downloading from the cloud, and obtains the charging pile device information through the code; (2) Query the charging pile status and charging data according to the obtained device information; (3) The user enters the charging data through the mobile phone APP, selects the payment method, and makes the payment; (4) The user sends the charging control information to the partner server or charging pile through the mobile phone APP. The charging pile starts charging after receiving the control information, and prompts the user that the charging is completed after the charging pile is charged.

[0004] The existing charging control method of scanning codes or swiping cards with mobile phone apps makes the manual operation process of electric vehicle charging too complicated, reducing the convenience and speed of charging of electric vehicles. In addition, the complicated operation delays the charging time, which invisibly increases the charging time and affects the user experience. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a charging control method and system based on a vehicle VIN code, which realizes fast and convenient charging start control and reduces the manual operation process during each charging.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: a charging control method based on a vehicle VIN code, comprising:

[0007] The cloud server stores the preset vehicle VIN code;

[0008] During charging, when the charging gun is inserted into the charging pile, the VIN code of the vehicle to be charged is obtained through communication interaction between the charging pile and the vehicle;

[0009] The charging pile uploads the VIN code of the vehicle to be charged to the cloud server;

[0010] The cloud server compares and verifies the VIN code of the vehicle to be charged with the preset vehicle VIN code and feeds back the verification result to the charging pile. The charging pile controls whether charging is started based on the verification result.

[0011] The method further comprises:

[0012] A connection is established with the cloud server through the mobile phone APP, and the preset VIN code is sent to the cloud server through the mobile phone APP. The cloud server completes the storage of the preset VIN code and interacts with the mobile phone APP to complete the binding of the preset VIN code with the payment system.

[0013] A user control interface is provided on the charging pile side. After the gun is inserted, the VIN code is displayed through the user control interface to start the charging soft switch with one button. After the VIN code is triggered to start the charging soft switch with one button, the charging pile starts to communicate with the vehicle to obtain the VIN code of the vehicle to be charged.

[0014] After receiving the VIN code and triggering the one-button charging soft switch, the charging pile starts the 12V low-voltage auxiliary power supply, completes the low-voltage interaction between the charging pile and the vehicle, and then completes the handshake and insulation detection in sequence. It initiates the CRM and BRM identification process between the charging pile and the vehicle, and obtains the vehicle VIN code through the BRM process.

[0015] The charging pile is connected to the cloud server through the Internet of Things, which is used to upload the read VIN code of the vehicle to be charged to the cloud server for verification.

[0016] The CRM and BRM identification process between the charging pile and the vehicle includes: the controller of the charging pile sends a charger identification message CRM to the BMS at a set interval to confirm the correctness of the communication link between the charging pile and the BMS; after the CRM identification is correct, the BMS regularly sends a BMS identification message BRM to the charging pile controller at a set interval to complete the BRM identification process; the content of the BRM message is the vehicle identification information, including the VIN code.

[0017] After the cloud server finds the VIN code of the vehicle to be charged in the preset VIN code, it will feedback the verification pass command to the charging pile, and the charging pile will start charging and charge for the charging; if the VIN code preset in the cloud server does not have the VIN code of the vehicle to be charged, it will feedback the verification fail command to the charging pile, and the charging pile will send a VIN code one-key quick charging failure reminder message through the user control interface.

[0018] After the charging pile receives the VIN code verification pass instruction, it starts charging, calculates the charging cost through power and time statistics, and feeds back to the cloud server in real time. After charging is completed, the cloud server completes the charging fee payment through the payment system that matches the VIN code of the vehicle to be charged, and notifies the user of the payment information and displays it through the user control interface.

[0019] A charging control system for running the charging control method based on the vehicle VIN code, the control system includes: a charging pile controller, a charging gun, and a cloud server, the connection between the vehicle and the charging pile controller is completed through the charging gun, and the charging pile controller is connected to the cloud server through the Internet of Things; the cloud server is connected to the Internet, and a client with networking function accesses the cloud server through the Internet to complete the preset of the VIN code.

[0020] The charging pile is provided with a user control interface, which is connected to the charging pile controller. The user control interface is provided with a VIN code one-button start charging soft switch.

[0021] The advantages of the present invention are: one-touch quick charging is achieved through the VIN code, avoiding the defects of the prior art such as complicated operation caused by charging by swiping a card or scanning a code with a mobile phone. The VIN code is used for quick charging, and the manual operation only needs to trigger the start button to quickly complete the charging control and automatically complete the payment, saving the operation process and improving the user experience; the user can automatically charge and control multiple times through one operation, which is convenient and fast to charge. Charging identification and control through the VIN code is unique, safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following is a brief description of the contents expressed in the drawings of the present invention and the symbols in the drawings:

[0023] Figure 1 This is a principle flow chart of the VIN code one-key charging control method of the present invention. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention will be further explained in detail below by describing the optimal embodiment with reference to the accompanying drawings.

[0025] In the prior art, each time charging is completed, users need to scan the code to pay or scan the code to verify the charging and pay the fee after charging is completed. This method requires users to operate once every time charging, which affects the user experience and also makes charging cumbersome, time-consuming and labor-intensive. This solution automatically charges after the gun is plugged in through VIN code recognition, which is simple, fast and convenient.

[0026] This solution provides a charging control system based on the vehicle VIN code, including a charging pile, a vehicle to be charged and a cloud server, and interactive charging control and charging process control between the vehicle to be charged and the charging pile after being connected through a charging gun. The charging pile includes a charging pile controller and an Internet of Things module, and the cloud server is configured to be able to access the cloud server through the network for interactive control; the vehicle to be charged includes a vehicle controller VCU, a battery management system BMS, a high-voltage control module HVCM, etc., which mainly involve charging control units, used for interactive charging control after the gun is plugged in.

[0027] When charging, the connection between the vehicle and the charging pile controller is completed through the charging gun, and the charging pile controller is connected to the cloud server through the Internet of Things; the cloud server is connected to the Internet, and the client with networking function accesses the cloud server through the Internet to complete the preset of the VIN code. The charging pile is provided with a user control interface, which is connected to the charging pile controller, and the user control interface is provided with a VIN code one-button charging soft switch. The user control interface refers to a touch screen, and a soft switch is implemented on the touch screen through software development for operation control. For vehicles that need to use VIN code for one-click fast charging, the owner accesses the cloud server through the mobile phone APP before charging, and sets the VIN code to the cloud server through the interactive control between the cloud server and the mobile phone APP. After the setting is successful, the VIN code is stored in the database by the cloud server, and the VIN codes of all preset vehicles form a VIN code database; successful VIN code preset means that after the cloud server receives the VIN code, it detects in real time whether the payment system corresponding to the VIN code has authorized the binding. When the payment system completes the binding of the VIN code, it is judged that the setting is successful. The cloud server stores the VIN code in the database and records the payment system matched by the VIN code, establishes the association between the VIN code and the payment system, and authorizes the payment system to complete the payment. For example, when payment systems such as Alipay and WeChat complete the payment authorization of the cloud server, it can provide a basis for subsequent VIN code fast charging.

[0028] The control method based on the above-mentioned vehicle VIN code charging control system includes the following steps: a preset vehicle VIN code is stored in the cloud server;

[0029] During charging, when the charging gun is inserted into the charging pile, the VIN code of the vehicle to be charged is obtained through communication interaction between the charging pile and the vehicle;

[0030] The charging pile uploads the VIN code of the vehicle to be charged to the cloud server;

[0031] The cloud server compares and verifies the VIN code of the vehicle to be charged with the preset vehicle VIN code and feeds back the verification result to the charging pile. The charging pile controls whether charging is started based on the verification result.

[0032] The method for presetting the vehicle VIN code in the cloud server includes: establishing a connection with the cloud server through a mobile phone APP, sending the preset VIN code to the cloud server through the mobile phone APP, the cloud server completing the storage of the preset VIN code and interacting with the mobile phone APP to complete the binding of the preset VIN code with the payment system. For vehicles that need to use VIN code one-key fast charging, the owner accesses the cloud server through the mobile phone APP before charging, and sets the VIN code to the cloud server through the interactive control between the cloud server and the mobile phone APP. After the setting is successful, the VIN code is stored in the database by the cloud server, and the VIN codes of all preset vehicles form a VIN code database; the successful VIN code presetting means that after the cloud server receives the VIN code, it is detected in real time whether the payment system corresponding to the VIN code is authorized to complete the binding. When the payment system completes the binding of the VIN code, it is judged that the setting is successful, the cloud server stores the VIN code in the database and records the payment system matched by the VIN code, establishes the association between the VIN code and the payment system, and authorizes the payment system to complete the payment. For example, when the payment system such as Alipay and WeChat completes the payment authorization of the cloud server, it can provide a basis for the subsequent VIN code fast charging. Using this method, the VIN code can first ensure uniqueness, and can also be linked to the payment system to facilitate automatic payment after charging.

[0033] A user control interface is provided on the charging pile side. After the gun is inserted, the VIN code is displayed through the user control interface to start the charging soft switch with one button. After the VIN code is triggered to start the charging soft switch with one button, the charging pile starts to communicate with the vehicle to obtain the VIN code of the vehicle to be charged.

[0034] After receiving the VIN code and triggering the one-button charging soft switch, the charging pile starts the 12V low-voltage auxiliary power supply, completes the low-voltage interaction between the charging pile and the vehicle, and then completes the handshake and insulation detection in sequence, initiates the CRM and BRM identification process between the charging pile and the vehicle, and obtains the vehicle VIN code through the BRM process. The charging pile is connected to the cloud server through the Internet of Things, which is used to upload the read VIN code of the vehicle to be charged to the cloud server for verification.

[0035] The CRM and BRM identification process between the charging pile and the vehicle includes: the controller of the charging pile sends a charger identification message CRM to the BMS at a set interval to confirm the correctness of the communication link between the charging pile and the BMS; after the CRM identification is correct, the BMS regularly sends a BMS identification message BRM to the charging pile controller at a set interval to complete the BRM identification process; the content of the BRM message is the vehicle identification information, including the VIN code.

[0036] The charging pile controller regularly sends a charger recognition message CRM (Charger Recognize Message) to the BMS every 250ms to confirm that the communication link between the charger and the BMS is correct. Before receiving the BMS recognition message, the confirmation code is 0x00; after receiving the BMS recognition message, the confirmation code is 0xAA.

[0037] After receiving the 0x00 confirmation code from the charger, the BMS will periodically send a BMS recognition message (BRM) to the charging pile controller every 250ms until the charger's 0xAA confirmation code is received within 5s. The content of the BRM message is vehicle identification information, including protocol version, battery type, capacity, battery voltage, battery pack serial number, battery pack production date, battery pack charge times, VIN code, BMS version number, etc.

[0038] The VIN code is obtained through the interaction of BRM, and then the VIN code of the vehicle to be charged is sent to the cloud server for confirmation through the Internet of Things. After the cloud server finds the VIN code of the vehicle to be charged in the preset VIN code, it feedbacks the verification pass command to the charging pile, and the charging pile starts charging and performs charging billing; if the VIN code preset in the cloud server does not contain the VIN code of the vehicle to be charged, it feedbacks the verification fail command to the charging pile, and the charging pile sends a VIN code one-key quick charging failure reminder message through the user control interface.

[0039] After the charging pile receives the VIN code verification pass instruction, it starts charging, calculates the charging cost through power and time statistics, and feeds back to the cloud server in real time. After charging is completed, the cloud server completes the charging fee payment through the payment system that matches the VIN code of the vehicle to be charged, and notifies the user of the payment information and displays it through the user control interface.

[0040] The cloud server inputs the VIN code that needs to be centrally managed in advance for matching verification in the vehicle charging identification stage; for DC charging piles, the interface develops a soft switch of "VIN code one-click charging", and after receiving the user's command, starts the output of the 12V+ low-voltage auxiliary power supply and starts the charging process. After handshake and insulation detection, initiate CRM-BRM identification with the vehicle, read the vehicle's VIN code and upload it to the cloud server for comparison and verification; if the comparison and verification pass, enter the next process to interact with the parameter configuration information until charging is started; if the comparison and verification fails, charging is terminated, and a prompt message indicating that the charging of the vehicle to be charged has failed is issued on the interface to prompt the user to start charging in other ways;

[0041] The vehicle battery management system software supports uploading the content of the BRM optional VIN code;

[0042] Step 1: The software of the vehicle battery management system is required to support uploading the optional VIN code of the BRM; the timing starts from the time when the vehicle sends the BRM, and the 5s timing judgment is used to detect whether the CRM (OxAA) is sent on time. If so, the next charging process is entered. If not, a timeout alarm is issued. The confirmation code in the CRM message sent by the charging pile controller is 0x00. After receiving the confirmation code sent by the BMS to the BRM, the CRM becomes 0XAA. The CRM process ends when the 0xAA confirmation code of the charger is received within 5s, otherwise a timeout alarm signal is issued.

[0043] The method proposed by the present invention of starting a charging pile for charging by one-touch through a vehicle VIN code mainly achieves the following beneficial effects:

[0044] 1. The present invention mainly solves the cumbersome startup process and problems after the new energy vehicle is connected to the charging pile, and provides users and vehicles with a method of autonomous one-key quick start charging using VIN code matching, thereby improving the convenience and speed of charging electric vehicles. Using the VIN code and vehicle matching relationship preset and stored in the remote server of the DC charging pile in advance, the charging pile is started with one key to charge the vehicle, eliminating the cumbersome process of scanning the code through the mobile phone APP and recharging to start;

[0045] 2. For centrally managed new energy vehicles, such as city taxi companies, a faster start-up method can be provided for charging taxis. At the same time, the VIN code can be used to implement preferential electricity price policies for taxis, which is different from social new energy vehicles, improves the user charging experience, and reduces user complaints. For centrally managed new energy vehicles such as city taxis, it is very beneficial for the company to manage the convenience of vehicle charging. Through the preset VIN and user matching relationship, centralized charging management and preferential electricity price settlement are carried out.

[0046] In this solution, when the vehicle and the DC charging pile are plugged in to start charging, the CHM-BHM handshake confirmation and insulation test are required first. When entering the CRM-BRM identification stage, the vehicle identification stage needs to upload the rated capacity, total voltage and vehicle VIN identification code of the vehicle battery through BRM; the innovation of the present invention is to make full use of the VIN code information of the vehicle, and choose whether to start the charging pile to charge the vehicle with the VIN code by presetting and storing the VIN code and vehicle matching relationship in the DC charging pile remote server in advance; for vehicles with legal VIN codes, charging is started and charging management and electricity fee settlement are carried out according to the preset management method and pricing fee, and charging cannot be completed for vehicles with illegal VIN codes. The present invention solves the cumbersome startup process and problems after the new energy vehicle is connected to the charging pile, and provides users and vehicles with a method for autonomous one-key quick start charging using the VIN code matching method, thereby improving the convenience and speed of charging of electric vehicles, improving the user's charging experience, and reducing the charging operation process.

[0047] Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, they are all within the protection scope of the present invention.

Claims

1. A charging control method based on a vehicle VIN code, characterized in that: include: The cloud server stores the preset vehicle VIN code; During charging, when the charging gun is inserted into the charging pile, the VIN code of the vehicle to be charged is obtained through communication interaction between the charging pile and the vehicle; The charging pile uploads the VIN code of the vehicle to be charged to the cloud server; The cloud server compares and verifies the VIN code of the vehicle to be charged with the preset vehicle VIN code and feeds back the verification result to the charging pile. The charging pile controls whether charging is started based on the verification result.

2. A charging control method based on a vehicle VIN code as claimed in claim 1, characterized in that: The method further comprises: A connection is established with the cloud server through the mobile phone APP, and the preset VIN code is sent to the cloud server through the mobile phone APP. The cloud server completes the storage of the preset VIN code and interacts with the mobile phone APP to complete the binding of the preset VIN code with the payment system.

3. A charging control method based on a vehicle VIN code as claimed in claim 1 or 2, characterized in that: A user control interface is provided on the charging pile side. After the gun is inserted, the VIN code is displayed through the user control interface to start the charging soft switch with one button. After the VIN code is triggered to start the charging soft switch with one button, the charging pile starts to communicate with the vehicle to obtain the VIN code of the vehicle to be charged.

4. A charging control method based on a vehicle VIN code as claimed in claim 3, characterized in that: After receiving the VIN code and triggering the one-button charging soft switch, the charging pile starts the 12V low-voltage auxiliary power supply, completes the low-voltage interaction between the charging pile and the vehicle, and then completes the handshake and insulation detection in sequence. It initiates the CRM and BRM identification process between the charging pile and the vehicle, and obtains the vehicle VIN code through the BRM process.

5. A charging control method based on a vehicle VIN code as claimed in claim 1 or 2, characterized in that: The charging pile is connected to the cloud server through the Internet of Things, which is used to upload the read VIN code of the vehicle to be charged to the cloud server for verification.

6. A charging control method based on a vehicle VIN code as claimed in claim 4, characterized in that: The CRM and BRM identification process between the charging pile and the vehicle includes: the controller of the charging pile sends a charger identification message CRM to the BMS at a set interval to confirm the correctness of the communication link between the charging pile and the BMS; after the CRM identification is correct, the BMS regularly sends a BMS identification message BRM to the charging pile controller at a set interval to complete the BRM identification process; the content of the BRM message is the vehicle identification information, including the VIN code.

7. A charging control method based on a vehicle VIN code as claimed in claim 1 or 2, characterized in that: After the cloud server finds the VIN code of the vehicle to be charged in the preset VIN code, it will feedback the verification pass command to the charging pile, and the charging pile will start charging and charge for the charging; if the VIN code preset in the cloud server does not have the VIN code of the vehicle to be charged, it will feedback the verification fail command to the charging pile, and the charging pile will send a VIN code one-key quick charging failure reminder message through the user control interface.

8. A charging control method based on a vehicle VIN code as claimed in claim 7, characterized in that: After the charging pile receives the VIN code verification pass instruction, it starts charging, calculates the charging cost through power and time statistics, and feeds back to the cloud server in real time. After charging is completed, the cloud server completes the charging fee payment through the payment system that matches the VIN code of the vehicle to be charged, and notifies the user of the payment information and displays it through the user control interface.

9. A charging control system for running the charging control method based on the vehicle VIN code as claimed in any one of claims 1 to 8, characterized in that: The control system includes: a charging pile controller, a charging gun, and a cloud server. The connection between the vehicle and the charging pile controller is completed through the charging gun, and the charging pile controller is connected to the cloud server through the Internet of Things; the cloud server is connected to the Internet, and a client with networking function accesses the cloud server through the Internet to complete the preset of the VIN code.

10. The charging control system based on the vehicle VIN code as claimed in claim 9, characterized in that: The charging pile is provided with a user control interface, which is connected to the charging pile controller. The user control interface is provided with a VIN code one-button start charging soft switch.

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