Battery changing cabinet of two-wheeled electric vehicle and management method

Abstract

The invention provides a two-wheeled electric vehicle battery replacement cabinet and a management method, and belongs to the technical field of two-wheeled electric vehicle battery replacement equipment. The battery replacement cabinet comprises a mainboard, a plurality of chargers and a plurality of battery wiring modules. The mainboard comprises a single-chip microcomputer, an Ethernet interface, a charging gun communication interface and a plurality of battery interface groups. The single-chip microcomputer is connected with the Ethernet interface, the charging gun communication interface and the battery interface group. After the chargers are mutually connected in series, one end is connected with the communication interface of the charging gun; and each battery wiring module is respectively connected with a charger and a battery interface group. The two-wheeled electric vehicle battery replacement cabinet has the advantage that the compatibility of the two-wheeled electric vehicle battery replacement cabinet is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery replacement equipment for two-wheeled electric vehicles, and in particular to a battery replacement cabinet for two-wheeled electric vehicles and a management method thereof. Background Art

[0002] With the booming development of the two-wheeled electric vehicle market, the number of batteries owned by two-wheeled electric vehicles has increased dramatically. There have also been a number of consecutive fire safety accidents caused by charging batteries in residential areas, which has greatly promoted the promotion and popularization of two-wheeled electric vehicle battery swap cabinets, that is, replacing the batteries of two-wheeled electric vehicles through outdoor battery swap cabinets to avoid charging the batteries in residential areas as much as possible.

[0003] Therefore, manufacturers of related two-wheeled electric vehicle battery swap cabinets have sprung up like mushrooms after a rain. Due to the lack of unified standards, the size, interface and protocol of the batteries of two-wheeled electric vehicles produced by different manufacturers are different, resulting in the following problems: 1. The same battery swap cabinet cannot be compatible with multiple batteries. When swapping batteries, it may be found that the battery type does not match, and the battery swap cabinet that matches its own battery type needs to travel a longer distance; 2. The battery swap cabinet has no backward compatibility, and the protocol / wiring after the upgrade may not match, resulting in the elimination of the battery and the battery swap cabinet at the same time.

[0004] Therefore, how to provide a two-wheeled electric vehicle battery replacement cabinet and management method to improve the compatibility of two-wheeled electric vehicle battery replacement cabinets has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a battery exchange cabinet for two-wheeled electric vehicles and a management method thereof, so as to improve the compatibility of the battery exchange cabinet for two-wheeled electric vehicles.

[0006] In a first aspect, the present invention provides a two-wheeled electric vehicle battery exchange cabinet, comprising a mainboard, a plurality of chargers and a plurality of battery wiring modules; the mainboard comprises a single-chip microcomputer, an Ethernet interface, a charging gun communication interface and a plurality of battery interface groups;

[0007] The single chip microcomputer is respectively connected to the Ethernet interface, the charging gun communication interface and the battery interface group; after each of the chargers is connected in series, one end is connected to the charging gun communication interface; each of the battery wiring modules is respectively connected to a charger and a battery interface group.

[0008] Further, the battery wiring module includes a DCDC circuit, a charging line group, a mainboard communication interface and a mainboard IO interface;

[0009] One end of the main board IO interface is connected to the DCDC circuit, and the other end is connected to the battery interface group; the main board communication interface is connected to the battery interface group; the charging cable group is connected to the charger.

[0010] Further, the charging cable group is provided with a plurality of charging interfaces of different types.

[0011] Further, the battery interface group includes a battery communication interface, a battery IO interface, and an isolation chip;

[0012] One end of the battery communication interface is connected to the battery wiring module, and the other end is connected to the single-chip microcomputer; one end of the battery IO interface is connected to the battery wiring module, and the other end is connected to the isolation chip; the isolation chip is connected to the single-chip microcomputer.

[0013] Further, it further includes a median machine connected to the Ethernet interface.

[0014] Further, it further includes a server connected to the median machine.

[0015] In a second aspect, the present invention provides a management method for a two-wheeled electric vehicle battery swapping cabinet, including the following steps:

[0016] Step S1: The main board stores the charging protocols of a plurality of batteries of different models;

[0017] Step S2: Connect the discharged battery removed from the two-wheeled electric vehicle to the matching charging interface in the charging cable group, and take out the fully charged battery of the same model from the battery swapping cabinet and install it on the two-wheeled electric vehicle;

[0018] Step S3: Based on the trigger signal of the charging cable group, the battery wiring module sends a battery connection signal to the single-chip microcomputer;

[0019] Step S4: Based on the received battery connection signal, the single-chip microcomputer traverses the stored charging protocols and matches them with the discharged battery;

[0020] Step S5: After the single-chip microcomputer performs an authentication operation on the discharged battery based on the matched charging protocol, it reads the battery information of the discharged battery;

[0021] Step S6: Based on the battery information, the single-chip microcomputer controls the corresponding charger to perform a charging operation on the discharged battery;

[0022] Step S7: The single-chip microcomputer obtains the battery charging data in real time through the battery communication interface, and sends the battery charging data to the median machine through the Ethernet interface.

[0023] Further, the specific content of step S3 is as follows:

[0024] Based on the trigger signal of the charging cable group, the battery connection module sequentially sends the battery connection signal to the single-chip microcomputer in real time through the main board IO interface, the battery IO interface, and the isolation chip.

[0025] Further, the step S4 is specifically as follows:

[0026] Based on the received battery connection signal, the single-chip microcomputer traverses each of the stored charging protocols to match with the dead battery, and selects the charging protocol that can communicate with the dead battery.

[0027] Further, in the step S5, the battery information at least includes the battery model, battery manufacturer, production date, and rated capacity.

[0028] The advantages of the present invention are as follows:

[0029] By setting a main board, several chargers, and several battery connection modules; the main board includes a single-chip microcomputer, an Ethernet interface, a charging gun communication interface, and several battery interface groups; the battery interface group includes a battery communication interface, a battery IO interface, and an isolation chip; the battery connection module includes a DCDC circuit, a charging cable group, a main board communication interface, and a main board IO interface; the Ethernet interface, the single-chip microcomputer, the charging gun communication interface, the charger, and the charging cable group are sequentially connected; the main board communication interface, the battery communication interface, and the single-chip microcomputer are sequentially connected; the DCDC circuit, the main board IO interface, the battery IO interface, the isolation chip, and the single-chip microcomputer are sequentially connected; the charging cable group is provided with several charging interfaces of different types; the main board stores the charging protocols of several different models of batteries; when charging a dead battery, just match the corresponding charging interface and charging protocol. The battery swapping cabinet for charging different models of batteries only needs to burn the same firmware. When the battery is updated, just update the corresponding charging cable group and charging protocol to achieve backward compatibility, ultimately greatly improving the compatibility of the two-wheeled electric vehicle battery swapping cabinet. Description of the Drawings

[0030] The present invention will be further described below with reference to the drawings in conjunction with embodiments.

[0031] Figure 1 It is a circuit principle block diagram of a battery swapping cabinet for two-wheeled electric vehicles of the present invention.

[0032] Figure 2 It is a flowchart of a management method for a battery swapping cabinet for two-wheeled electric vehicles of the present invention. Detailed Embodiments

[0033] The overall idea of the technical solution in the embodiments of this application is as follows: When it is necessary to charge a depleted battery, just match the corresponding charging interface and charging protocol. The battery swapping cabinet used to charge different models of batteries only needs to burn the same firmware. When the battery is updated, only update the corresponding charging cable set and charging protocol to achieve backward compatibility and improve the compatibility of the battery swapping cabinet for two-wheeled electric vehicles.

[0034] Please refer to Figures 1 to 2 As shown, a preferred embodiment of a battery swapping cabinet for two-wheeled electric vehicles according to the present invention includes a main board, a plurality of chargers, and a plurality of battery connection modules; the main board includes a single-chip microcomputer, an Ethernet interface, a charging gun communication interface, and a plurality of battery interface groups; the Ethernet interface is used for the single-chip microcomputer to upload battery charging data and related logs to the middle computer; the charging gun communication interface, that is, the soft switch of the charger, is used to control the output voltage and current of the charger and read the actual output voltage and current of the charger;

[0035] The single-chip microcomputer is respectively connected to the Ethernet interface, the charging gun communication interface, and the battery interface groups; after the chargers are connected in series with each other, one end is connected to the charging gun communication interface; each of the battery connection modules is respectively connected to a charger and a battery interface group.

[0036] Furthermore, the battery connection module includes a DCDC circuit, a charging cable set, a main board communication interface, and a main board IO interface; the DCDC circuit is used to convert the voltage of the battery to ensure that the voltage of the IO interface is higher than the high-level voltage recognized by the main board or the voltage of the IO interface is lower than the withstand voltage value of the main board IO interface;

[0037] One end of the main board IO interface is connected to the DCDC circuit, and the other end is connected to the battery interface group; the main board communication interface is connected to the battery interface group; the charging cable set is connected to the charger.

[0038] The charging cable set is provided with a plurality of different types of charging interfaces.

[0039] The battery interface group includes a battery communication interface, a battery IO interface, and an isolation chip; the battery communication interface is used for battery charging authentication and reads fixed information of the battery including at least the battery type, battery software version, and battery ID, and real-time information including at least the voltage value and current value;

[0040] One end of the battery communication interface is connected to the battery connection module, and the other end is connected to the single-chip microcomputer; one end of the battery IO interface is connected to the battery connection module, and the other end is connected to the isolation chip; the isolation chip is connected to the single-chip microcomputer. A feedback signal circuit is also provided between the isolation chip and the single-chip microcomputer to avoid common ground and interference.

[0041] It also includes a middle-level machine, which is connected to the Ethernet interface.

[0042] It also includes a server, which is connected to the middle-level machine.

[0043] A preferred embodiment of the management method for the battery swapping cabinet of a two-wheeled electric vehicle according to the present invention includes the following steps:

[0044] Step S1: The main board stores the charging protocols of several different models of batteries.

[0045] Step S2: Connect the discharged battery removed from the two-wheeled electric vehicle to the matching charging interface in the charging cable group, and take out the fully charged battery of the same model from the battery swapping cabinet and install it on the two-wheeled electric vehicle.

[0046] Step S3: Based on the trigger signal of the charging cable group, the battery wiring module sends a battery connection signal to the single-chip microcomputer.

[0047] Step S4: Based on the received battery connection signal, the single-chip microcomputer traverses the stored charging protocols and matches them with the discharged battery.

[0048] Step S5: After the single-chip microcomputer performs an authentication operation on the discharged battery based on the matched charging protocol, it reads the battery information of the discharged battery.

[0049] Step S6: Based on the battery information, the single-chip microcomputer controls the corresponding charger to perform a charging operation on the discharged battery.

[0050] Step S7: The single-chip microcomputer obtains the battery charging data in real time through the battery communication interface, and sends the battery charging data to the middle-level machine through the Ethernet interface.

[0051] The specific content of step S3 is as follows:

[0052] Based on the trigger signal of the charging cable group, the battery wiring module sequentially sends a battery connection signal to the single-chip microcomputer through the main board IO interface, the battery IO interface, and the isolation chip. That is, the level of the trigger IO interface is inverted.

[0053] The specific content of step S4 is as follows:

[0054] Based on the received battery connection signal, the single-chip microcomputer traverses the stored charging protocols and matches them with the discharged battery, and selects the charging protocol that can communicate with the discharged battery. Specifically, during implementation, if the charging protocol is not matched after traversing 3 times, an alarm message indicating an identification error is generated.

[0055] In step S5, the battery information at least includes the battery model, battery manufacturer, production date, and rated capacity; the battery information also includes the battery software version and the battery ID.

[0056] In summary, the advantages of the present invention are as follows:

[0057] By providing a main board, a plurality of chargers, and a plurality of battery connection modules; the main board includes a single-chip microcomputer, an Ethernet interface, a charging gun communication interface, and a plurality of battery interface groups; the battery interface group includes a battery communication interface, a battery IO interface, and an isolation chip; the battery connection module includes a DCDC circuit, a charging wire group, a main board communication interface, and a main board IO interface; the Ethernet interface, the single-chip microcomputer, the charging gun communication interface, the charger, and the charging wire group are connected in sequence; the main board communication interface, the battery communication interface, and the single-chip microcomputer are connected in sequence; the DCDC circuit, the main board IO interface, the battery IO interface, the isolation chip, and the single-chip microcomputer are connected in sequence; the charging wire group is provided with a plurality of charging interfaces of different types; the main board stores the charging protocols of a plurality of batteries of different models; when charging a discharged battery, the corresponding charging interface and charging protocol can be matched, and the battery swapping cabinet for charging batteries of different models only needs to burn the same firmware. When the battery is updated, the corresponding charging wire group and charging protocol can be updated to achieve backward compatibility, ultimately greatly improving the compatibility of the two-wheeled electric vehicle battery swapping cabinet.

[0058] Although the specific embodiments of the present invention have been described above, those skilled in the art of this technology should understand that the specific embodiments we described are illustrative rather than used to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be covered by the scope protected by the claims of the present invention.

Claims

1. A two-wheeled electric vehicle battery replacement cabinet, characterized in that: It includes a mainboard, several chargers and several battery connection modules; the mainboard includes a single chip microcomputer, an Ethernet interface, a charging gun communication interface and several battery interface groups; The single chip microcomputer is respectively connected to the Ethernet interface, the charging gun communication interface and the battery interface group; after each of the chargers is connected in series, one end is connected to the charging gun communication interface; each of the battery wiring modules is respectively connected to a charger and a battery interface group.

2. A two-wheeled electric vehicle battery exchange cabinet as claimed in claim 1, characterized in that: The battery wiring module includes a DCDC circuit, a charging line group, a mainboard communication interface and a mainboard IO interface; One end of the mainboard IO interface is connected to the DCDC circuit, and the other end is connected to the battery interface group; the mainboard communication interface is connected to the battery interface group; and the charging line group is connected to the charger.

3. A two-wheeled electric vehicle battery exchange cabinet as claimed in claim 2, characterized in that: The charging cable set is provided with a plurality of charging interfaces of different types.

4. A two-wheeled electric vehicle battery exchange cabinet as claimed in claim 1, characterized in that: The battery interface group includes a battery communication interface, a battery IO interface and an isolation chip; One end of the battery communication interface is connected to the battery wiring module, and the other end is connected to the single-chip microcomputer; one end of the battery IO interface is connected to the battery wiring module, and the other end is connected to the isolation chip; the isolation chip is connected to the single-chip microcomputer.

5. A two-wheeled electric vehicle battery-changing cabinet as claimed in claim 1, characterized in that: It also includes a middle computer connected to the Ethernet interface.

6. A two-wheeled electric vehicle battery exchange cabinet as claimed in claim 5, characterized in that: It also includes a server connected to the intermediate computer.

7. A management method for a two-wheeled electric vehicle battery exchange cabinet, characterized in that: The method requires the use of a power exchange cabinet as described in any one of claims 1 to 6, and comprises the following steps: Step S1, the mainboard stores charging protocols of several different types of batteries; Step S2, connect the low-power battery removed from the two-wheeled electric vehicle to the matching charging interface in the charging cable set, and take out a fully charged battery of the same model from the battery exchange cabinet and install it on the two-wheeled electric vehicle; Step S3: the battery connection module sends a battery connection signal to the single-chip microcomputer based on the trigger signal of the charging line group; Step S4, the single chip microcomputer traverses each of the stored charging protocols based on the received battery connection signal to match the low-power battery; Step S5, the single chip microcomputer performs an authentication operation on the low-power battery based on the matched charging protocol, and then reads the battery information of the low-power battery; Step S6: The single chip microcomputer controls the corresponding charger to charge the low-power battery based on the battery information; Step S7: The single chip microcomputer obtains the battery charging data in real time through the battery communication interface, and sends the battery charging data to the intermediate computer through the Ethernet interface.

8. A method for managing a two-wheeled electric vehicle battery exchange cabinet as claimed in claim 7, characterized in that: The step S3 is specifically as follows: Based on the trigger signal of the charging cable group, the battery wiring module sends the battery connection signal to the microcontroller in real time through the mainboard IO interface, battery IO interface and isolation chip.

9. A method for managing a two-wheeled electric vehicle battery exchange cabinet as claimed in claim 7, characterized in that: The step S4 is specifically as follows: Based on the received battery connection signal, the single chip microcomputer traverses the stored charging protocols to match the low-power battery, and selects the charging protocol that can communicate with the low-power battery.

10. A method for managing a battery-swap cabinet for a two-wheeled electric vehicle as claimed in claim 7, characterized in that: In step S5, the battery information at least includes the battery model, battery manufacturer, production date and rated capacity.

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