A non-sensing payment method and system for electric vehicle charging based on front-mounted OBU

Abstract

The present invention discloses a non-sensing payment method and system for electric vehicle charging based on a front-mounted OBU, and the method comprises: S100, the charging pile broadcasts to the CAN bus to determine the message ID of the front-mounted OBU in the electric vehicle; S200, the front-mounted OBU reports the message ID to the charging pile and carries a first random number; S300, after the charging pile receives the message ID and the first random number, it returns a first identification code to the front-mounted OBU; S400, after the front-mounted OBU confirms the first identification code, it returns the vehicle information of the electric vehicle to the charging pile; S500, after the charging pile receives the vehicle information, it sends charging information to the front-mounted OBU and carries a second random number; S600, after the front-mounted OBU receives the charging information and the second random number, it sends a charging identification code to the charging pile; S700, after the charging pile confirms the charging identification code, it performs a deduction operation on the front-mounted OBU, and returns the consumption information to the front-mounted OBU. The present invention performs charging operation through the front-mounted OBU, improves the use scenario of the OBU, and simplifies the payment process.

Description

Technical Field

[0001] The present invention relates to the field of intelligent transportation, and in particular to a method and system for charging a non-sensing electric vehicle based on a front-mounted OBU. Background Art

[0002] The ETC toll collection system has gradually matured in my country and is currently the mainstream toll collection system for highways. It collects fees through the roadside antenna RSU and the on-board device OBU. When the car owner has installed the OBU, he enters the highway lane through the ETC lane at the entrance. When passing through a road equipped with a path identification device, the RSU sends a microwave signal through the antenna to wake up the OBU and write the path identification information into the OBU. At the highway exit, the path information in the OBU is read and charged according to the established standards.

[0003] Pre-installed OBU means that the vehicle is already installed in the vehicle when it leaves the factory. The battery in the vehicle charges the OBU, and communicates with the OBU device through the CAN bus, transmitting the transaction information to the multimedia screen through the CAN bus, and then the multimedia screen displays it. The multimedia screen is basically standard in new energy vehicles and can display the transaction information of the OBU very well.

[0004] New energy vehicles can be charged through charging piles or using household electricity through adapters. When using charging piles, you need to pay by operating your mobile phone. The entire process is highly dependent on the mobile phone, and charging cannot be completed in special circumstances without a mobile phone. Summary of the invention

[0005] In view of the defects existing in the prior art, the purpose of the present invention is to provide an electric vehicle charging contactless payment method and system based on a front-mounted OBU, wherein charging operations are performed through the front-mounted OBU, and operations such as charging start, charging end and fee settlement are realized through the OBU, thereby improving the use scenarios of the OBU and simplifying the payment process.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A non-sensing payment method for electric vehicle charging based on a front-mounted OBU, comprising:

[0008] (1) The charging pile broadcasts to the CAN bus to determine the message ID of the front-mounted OBU in the electric vehicle;

[0009] (2) The front-mounted OBU reports the message ID and carries the first random number to the charging pile;

[0010] (3) After receiving the message ID and the first random number, the charging pile returns a first identification code to the front-end OBU;

[0011] (4) After the front-mounted OBU confirms the first identification code, it returns the vehicle information of the electric vehicle to the charging pile;

[0012] (5) After receiving the vehicle information, the charging pile sends charging information to the front-mounted OBU and carries a second random number;

[0013] (6) After receiving the charging information and the second random number, the front-mounted OBU sends a charging identification code to the charging pile;

[0014] (7) After confirming the charging identification code, the charging pile deducts the fee from the pre-installed OBU and returns the consumption information to the pre-installed OBU.

[0015] Further, in the above-mentioned electric vehicle charging contactless payment method based on the front-mounted OBU, step (2) comprises:

[0016] (2.1) The front-end OBU obtains a first random number from the ESAM module;

[0017] (2.2) The front-mounted OBU sends the first random number to the charging pile.

[0018] Further, in the above-mentioned electric vehicle charging contactless payment method based on the front-mounted OBU, step (3) comprises:

[0019] (3.1) The charging pile reports the first random number to the server;

[0020] (3.2) After receiving the first random number, the server returns a first identification code to the charging pile;

[0021] (3.3) The charging pile returns the first identification code to the front-end OBU.

[0022] Further, in the above-mentioned electric vehicle charging non-contact payment method based on the front-mounted OBU, step (4) comprises:

[0023] (4.1) The front-end OBU sends the first identification code to the ESAM module;

[0024] (4.2) The ESAM module verifies the first identification code, and after verification, returns the vehicle information of the electric vehicle to the front-mounted OBU;

[0025] (4.3) The front-mounted OBU returns the vehicle information of the electric vehicle to the charging pile.

[0026] Further, in the above-mentioned electric vehicle charging contactless payment method based on the front-mounted OBU, step (6) comprises:

[0027] (6.1) After receiving the charging information and the second random number, the front-end OBU obtains the charging identification code from the ESAM module;

[0028] (6.2) The front-mounted OBU sends the charging identification code to the charging pile.

[0029] Further, in the above-mentioned electric vehicle charging contactless payment method based on the front-mounted OBU, step (7) comprises:

[0030] (7.1) The charging pile reports the charging identification code to the server;

[0031] (7.2) The server verifies the charging authentication code. After the verification is passed, the server deducts the fee from the pre-installed OBU and returns the consumption information to the charging pile;

[0032] (7.3) The charging pile returns the consumption information to the pre-installed OBU.

[0033] Further, the above-mentioned electric vehicle charging non-contact payment method based on the front-mounted OBU, the payment method also includes:

[0034] (8) The front-mounted OBU sends the consumption information to a multimedia large screen for display.

[0035] An electric vehicle charging non-contact payment system based on a front-mounted OBU, comprising:

[0036] The charging pile broadcasts to the CAN bus to determine the message ID of the pre-installed OBU in the electric vehicle;

[0037] The front-mounted OBU reports the message ID to the charging pile and carries the first random number;

[0038] After receiving the message ID and the first random number, the charging pile returns a first identification code to the front-mounted OBU;

[0039] After the front-mounted OBU confirms the first identification code, the vehicle information of the electric vehicle is returned to the charging pile;

[0040] After receiving the vehicle information, the charging pile sends charging information to the front-mounted OBU and carries a second random number;

[0041] After receiving the charging information and the second random number, the front-mounted OBU sends a charging identification code to the charging pile;

[0042] After confirming the charging identification code, the charging pile deducts the fee from the pre-installed OBU and returns the consumption information to the pre-installed OBU.

[0043] Further, the electric vehicle charging non-contact payment system based on the front-mounted OBU as described above includes:

[0044] The front-mounted OBU obtains a first random number from the ESAM module;

[0045] The front-mounted OBU sends the first random number to the charging pile.

[0046] Further, the electric vehicle charging non-contact payment system based on the front-mounted OBU as described above includes:

[0047] The charging pile reports the first random number to the server;

[0048] After receiving the first random number, the server returns a first identification code to the charging pile;

[0049] The charging pile returns the first identification code to the front-mounted OBU.

[0050] The beneficial effects of the present invention are as follows: the method and system provided by the present invention can communicate with the charging pile through the CAN bus because the front-mounted OBU has a CAN transceiver; the charging operation is performed through the front-mounted OBU, and the charging start, charging end and fee settlement operations are realized through the OBU, thereby improving the use scenarios of the OBU, reducing the dependence on mobile phones, and simplifying the payment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 A schematic diagram of a module of a front-mounted OBU provided in an embodiment of the present invention;

[0052] Figure 2 This is a schematic diagram of the interface of the charging pile provided in an embodiment of the present invention;

[0053] Figure 3 A schematic diagram of a flow chart of the OBU and charging pile provided in an embodiment of the present invention cooperating to complete the charging start, payment, and end operations;

[0054] Figure 4 A schematic diagram of a flow chart of a method for non-sensing payment of electric vehicle charging based on a pre-installed OBU provided in an embodiment of the present invention;

[0055] Figure 5 The present invention provides a schematic diagram of a system for contactless payment of electric vehicle charging based on a front-mounted OBU in an embodiment of the present invention. DETAILED DESCRIPTION

[0056] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0057] At present, most electric vehicle charging fees require the owner to use a mobile phone to scan a QR code to pay. In view of the problem of mobile phone dependence in the prior art, the present invention provides a fee deduction operation through a pre-installed OBU. Figure 1 As shown, the pre-installed OBU refers to the OBU that is installed in the motor vehicle before it leaves the factory. This OBU is equipped with a CAN controller and transceiver that can communicate with the motor vehicle. It is not limited to a dual-chip OBU, but can also be a single-chip OBU or a dual-channel ESAMOBU. The fees incurred on the highway will be reported through the RSU and ultimately paid through the OBU. The AC charging interface used by new energy vehicles when charging with a charging pile at a charging station is called a charging gun, which complies with the GB / T20234.2-2015 standard. The figure below shows the interface definition of the charging pile. Figure 2 It can be seen that S+ and S- are differential signal lines of the CAN bus, which can be used to communicate with the vehicle. Since the front-mounted OBU also has a CAN transceiver, it can communicate with the charging pile through the CAN bus. The CAN communication protocol follows the "QGDW1235-2014 Electric Vehicle Non-onboard Charger Communication Protocol".

[0058] like Figure 3 As shown in the figure, the OBU and the charging pile cooperate to complete the operation process of starting, paying, and ending charging. Information such as charging cost and time can be displayed on the multimedia screen in the car, or on the screen of the charging pile. The user inserts the charging gun into the new energy vehicle, and the charging pile becomes a new CAN bus node. The charging pile confirms whether the OBU account is available through the CAN bus. If charging needs to be stopped midway, it can be achieved through the button on the OBU or by operating the multimedia screen in the car. After charging is completed, the charging pile communicates with the OBU through the CAN bus to complete the deduction.

[0059] like Figure 4 As shown, a non-contact payment method for electric vehicle charging based on a front-mounted OBU includes:

[0060] S100, the charging pile broadcasts to the CAN bus to determine the message ID of the pre-installed OBU in the electric vehicle;

[0061] S200, the front-mounted OBU reports a message ID to the charging pile and carries a first random number;

[0062] S300, after receiving the message ID and the first random number, the charging pile returns the first identification code to the OBU;

[0063] S400, after the front-mounted OBU confirms the first identification code, the vehicle information of the electric vehicle is returned to the charging pile;

[0064] S500: After receiving the vehicle information, the charging pile sends charging information to the front-mounted OBU and carries the second random number;

[0065] S600: After receiving the charging information and the second random number, the front-mounted OBU sends a charging identification code to the charging pile;

[0066] S700: After confirming the charging identification code, the charging pile deducts the fee from the pre-installed OBU and returns the consumption information to the pre-installed OBU.

[0067] Step S200 includes:

[0068] S201, the front-mounted OBU obtains a first random number from the ESAM module;

[0069] S202: The front-mounted OBU sends the first random number to the charging pile.

[0070] Step S300 includes:

[0071] S301, the charging pile reports the first random number to the server;

[0072] S302: After receiving the first random number, the server returns a first identification code to the charging pile;

[0073] S303: The charging pile returns the first identification code to the front-mounted OBU.

[0074] Step S400 includes:

[0075] S401, the front-mounted OBU sends the first identification code to the ESAM module;

[0076] S402, the ESAM module verifies the first identification code, and after the verification is passed, returns the vehicle information of the electric vehicle to the front-mounted OBU;

[0077] S403: The front-mounted OBU returns the vehicle information of the electric vehicle to the charging pile.

[0078] Step S600 includes:

[0079] S601, after the front-mounted OBU receives the charging information and the second random number, it obtains the charging identification code from the ESAM module;

[0080] S602: The front-mounted OBU sends the charging identification code to the charging pile.

[0081] Step S700 includes:

[0082] S701, the charging pile reports the charging identification code to the server;

[0083] S702, the server verifies the charging identification code. After the verification is passed, the pre-installed OBU is deducted and the consumption information is returned to the charging pile;

[0084] S703: The charging pile returns the consumption information to the pre-installed OBU.

[0085] Payment methods also include:

[0086] S800 and the front-mounted OBU send consumption information to the multimedia large screen for display.

[0087] like Figure 5 As shown, an electric vehicle charging non-contact payment system based on a front-mounted OBU includes:

[0088] The charging pile broadcasts to the CAN bus to determine the message ID of the pre-installed OBU in the electric vehicle;

[0089] The front-mounted OBU reports a message ID to the charging pile and carries the first random number; including:

[0090] The front-mounted OBU obtains the first random number from the ESAM module;

[0091] The front-mounted OBU sends the first random number to the charging pile.

[0092] After receiving the message ID and the first random number, the charging pile returns the first identification code to the front-mounted OBU; including:

[0093] The charging pile reports the first random number to the server;

[0094] After receiving the first random number, the server returns a first identification code to the charging pile;

[0095] The charging pile returns the first identification code to the front-mounted OBU.

[0096] After the front-mounted OBU confirms the first identification code, the vehicle information of the electric vehicle is returned to the charging pile; including:

[0097] The front-mounted OBU sends the first identification code to the ESAM module;

[0098] The ESAM module verifies the first identification code, and after the verification is passed, returns the vehicle information of the electric vehicle to the front-mounted OBU;

[0099] The front-mounted OBU returns the vehicle information of the electric vehicle to the charging pile.

[0100] After receiving the vehicle information, the charging pile sends the charging information to the front-mounted OBU and carries the second random number;

[0101] After receiving the charging information and the second random number, the front-mounted OBU sends a charging identification code to the charging pile; including:

[0102] After receiving the charging information and the second random number, the front-mounted OBU obtains the charging identification code from the ESAM module;

[0103] The pre-installed OBU sends the charging identification code to the charging pile.

[0104] After the charging pile confirms the charging identification code, it deducts the fee from the pre-installed OBU and returns the consumption information to the pre-installed OBU. Including:

[0105] The charging pile reports the charging identification code to the server;

[0106] The server verifies the charging identification code. After verification, it deducts the fee from the pre-installed OBU and returns the consumption information to the charging pile.

[0107] The charging pile returns the consumption information to the pre-installed OBU.

[0108] The payment system also includes:

[0109] The pre-installed OBU sends consumption information to the multimedia large screen for display.

[0110] The beneficial effects brought by the technical solution of the present invention include:

[0111] 1. Increased the usage scenarios of OBU, diversified payment methods, and contactless payment.

[0112] 2. Reduce dependence on mobile phones, and you can pay for charging even without a mobile phone or cash.

[0113] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A non-sensing payment method for electric vehicle charging based on a front-mounted OBU, wherein the front-mounted OBU has a CAN transceiver, and the front-mounted OBU communicates with a charging pile via a CAN bus, characterized in that: include: (1) The charging pile broadcasts to the CAN bus to determine the message ID of the front-mounted OBU in the electric vehicle; (2) The front-mounted OBU reports the message ID and carries the first random number to the charging pile; (3) After receiving the message ID and the first random number, the charging pile returns a first identification code to the front-end OBU; (4) After the front-mounted OBU confirms the first identification code, it returns the vehicle information of the electric vehicle to the charging pile; (5) After receiving the vehicle information, the charging pile sends charging information to the front-mounted OBU and carries a second random number; (6) After receiving the charging information and the second random number, the front-mounted OBU sends a charging identification code to the charging pile; (7) After the charging pile confirms the charging identification code, it deducts the fee from the pre-installed OBU and returns the consumption information to the pre-installed OBU; Step (3) includes: (3.1) the charging pile reports the first random number to the server; Step (7) comprises: (7.1) The charging pile reports the charging identification code to the server; (7.2) The server verifies the charging authentication code. After the verification is passed, the server deducts the fee from the pre-installed OBU and returns the consumption information to the charging pile; (7.3) The charging pile returns the consumption information to the pre-installed OBU.

2. A non-sense payment method for electric vehicle charging based on front-mounted OBU according to claim 1, characterized in that: Step (2) comprises: (2.1) The front-end OBU obtains a first random number from the ESAM module; (2.2) The front-mounted OBU sends the first random number to the charging pile.

3. A non-sense payment method for electric vehicle charging based on front-mounted OBU according to claim 1, characterized in that: Step (3) also includes: (3.2) After receiving the first random number, the server returns a first identification code to the charging pile; (3.3) The charging pile returns the first identification code to the front-end OBU.

4. A non-sense payment method for electric vehicle charging based on front-mounted OBU according to claim 1, characterized in that: Step (4) comprises: (4.1) The front-end OBU sends the first identification code to the ESAM module; (4.2) The ESAM module verifies the first identification code, and after verification, returns the vehicle information of the electric vehicle to the front-mounted OBU; (4.3) The front-mounted OBU returns the vehicle information of the electric vehicle to the charging pile.

5. A non-sense payment method for electric vehicle charging based on front-mounted OBU according to claim 1, characterized in that: Step (6) comprises: (6.1) After receiving the charging information and the second random number, the front-end OBU obtains the charging identification code from the ESAM module; (6.2) The front-mounted OBU sends the charging identification code to the charging pile.

6. A non-sensing payment method for electric vehicle charging based on front-mounted OBU according to claim 1, characterized in that: The payment method also includes: (8) The front-mounted OBU sends the consumption information to a multimedia large screen for display.

7. A non-sensing payment system for electric vehicle charging based on a front-mounted OBU, wherein the front-mounted OBU has a CAN transceiver, and the front-mounted OBU communicates with the charging pile via a CAN bus, characterized in that: include: The charging pile broadcasts to the CAN bus to determine the message ID of the pre-installed OBU in the electric vehicle; The front-mounted OBU reports the message ID to the charging pile and carries the first random number; After receiving the message ID and the first random number, the charging pile returns a first identification code to the front-mounted OBU; After the front-mounted OBU confirms the first identification code, the vehicle information of the electric vehicle is returned to the charging pile; After receiving the vehicle information, the charging pile sends charging information to the front-mounted OBU and carries a second random number; After receiving the charging information and the second random number, the front-mounted OBU sends a charging identification code to the charging pile; After confirming the charging identification code, the charging pile deducts the fee from the pre-installed OBU and returns the consumption information to the pre-installed OBU.

8. The electric vehicle charging non-sensing payment system based on the front-mounted OBU according to claim 7 is characterized in that: The front-mounted OBU obtains a first random number from the ESAM module; The front-mounted OBU sends the first random number to the charging pile.

9. The electric vehicle charging non-sensing payment system based on the front-mounted OBU according to claim 7 is characterized in that: The system comprises: The charging pile reports the first random number to the server; After receiving the first random number, the server returns a first identification code to the charging pile; The charging pile returns the first identification code to the front-mounted OBU.

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