Charging connection device, data updating method, vehicle and charging system

Abstract

The invention relates to a charging connection device, a data updating method, a vehicle and a charging system.The charging connection device comprises a control confirmation function wire, a ground wire, a control module and a communication module, and the communication module is electrically connected with the control module, the control confirmation function wire and the ground wire; the communication module is additionally arranged between the control module and the control confirmation function line, so that the universal burning jig can update the configuration data in the control module through the control confirmation function line and the ground line, and the limitation that a special burning jig needs to be adopted for updating the configuration data of the charging connection device is improved.

Description

Technical Field

[0001] This application relates to the field of electronic technologies, and particularly to a charging connection device, a data update method, a vehicle, and a charging system. Background Art

[0002] The charging connection device controls the external charging state through the software configured therein.

[0003] However, when it is necessary to update the software or configuration data in the charging connection device, a special programming jig is required to update the software or configuration data in the charging connection device, which increases the limitation of the configuration data update. Summary of the Invention

[0004] Embodiments of this application provide a charging connection device, a data update method, a vehicle, and a charging system, which improve the limitation that a special programming jig is required for updating the configuration data of the charging connection device, so as to at least partially solve the above technical problems.

[0005] To achieve the above object, according to the first aspect of this application, there is provided a charging connection device, including a control confirmation function line, a ground wire, a control module, and a communication module. The communication module is electrically connected to the control module, the control confirmation function line, and the ground wire, and is used to update the configuration data in the control module through the control confirmation function line and the ground wire.

[0006] Optionally, the communication module includes a serial communication chip and a peripheral circuit. The serial communication chip is connected to the control module through a serial communication interface; the peripheral circuit is connected between the serial communication chip and the control confirmation function line, and the peripheral circuit is connected between the serial communication chip and the control module.

[0007] Optionally, the peripheral circuit includes a first resistor, a second resistor, a first capacitor, a third resistor, and a fourth resistor. One end of the first resistor is connected to the control confirmation function line; one end of the second resistor is connected to the other end of the first resistor, and the other end of the second resistor is connected to the transmit-receive pin of the serial communication chip; one end of the first capacitor is connected to one end of the second resistor and the other end of the first resistor, and the other end of the first capacitor is connected to the ground pin of the serial communication chip and the ground wire; the third resistor is connected between the serial transmit pin of the serial communication chip and the serial transmit pin of the control module; the fourth resistor is connected between the serial receive pin of the serial communication chip and the serial receive pin of the control module.

[0008] Optionally, the peripheral circuit further includes a fifth resistor, a second capacitor, a sixth resistor, a seventh resistor, a third capacitor, a fourth capacitor, a fifth capacitor, and an eighth resistor. One end of the fifth resistor is connected to one end of the fourth resistor and the serial receive pin of the control module, and the other end of the fifth resistor is connected to the first power supply terminal and the first power supply pin of the control module. One end of the second capacitor is connected to the first power supply terminal, and the other end of the second capacitor is connected to the ground wire and the second power supply pin of the control module. One end of the sixth resistor is connected to the wake-up pin of the serial communication chip. One end of the seventh resistor is connected to the other end of the sixth resistor, the first general-purpose pin of the control module, and the wake-up pin, and the other end of the seventh resistor is connected to the ground wire. One end of the third capacitor is connected to one end of the seventh resistor, and the other end of the third capacitor is connected to the ground wire. One end of the fourth capacitor is connected to the second power supply terminal and the power supply pin of the serial communication chip, and the other end of the fourth capacitor is connected to the ground wire. The fifth capacitor is connected in parallel with the fourth capacitor. The eighth resistor is connected between the second power supply terminal and the enable pin of the serial communication chip.

[0009] Optionally, the control module includes a microcontroller unit, a sixth capacitor, and a seventh capacitor. The microcontroller unit is connected to the communication module. The microcontroller unit enters the programming mode when it receives a programming instruction within a preset period starting from the power-on time. One end of the sixth capacitor is connected to the first power supply terminal and the third power supply pin of the microcontroller unit, and the other end of the sixth capacitor is connected to the ground wire and the fourth power supply pin of the microcontroller unit. One end of the seventh capacitor is connected to the first power supply terminal and the fifth power supply pin of the microcontroller unit, and the other end of the seventh capacitor is connected to the ground wire and the sixth power supply pin of the microcontroller unit.

[0010] Optionally, the charging connection device further includes a power supply module, a power switch, and a relay. The input end of the power supply module is connected to the power cord, and the first output end of the power supply module is connected to the first power supply terminal. The control end of the power switch is connected to the microcontroller unit, and one end of the power switch is connected to the second output end of the power supply module. The coil of the relay is connected between the other end of the power switch and the ground wire, and the contact group of the relay is connected in series in the power cord.

[0011] Optionally, the charging connection device further includes a communication module, and the communication module is connected between the control confirmation function line and the control module.

[0012] Optionally, the communication module includes a first branch and a second branch. The first branch is connected between the control confirmation function line and the second general-purpose pin of the control module. The second branch is connected between the control confirmation function line and the third general-purpose pin of the control module.

[0013] Optionally, the first branch includes a first diode and a comparator. The positive electrode of the first diode is connected to the second general-purpose pin; the first input terminal of the comparator is connected to the negative electrode of the first diode, the second input terminal of the comparator is connected to a first reference voltage, and the output terminal of the comparator is connected to the control confirmation function line.

[0014] Optionally, the first branch further includes a ninth resistor, a tenth resistor, and an eleventh resistor. One end of the ninth resistor is connected to the first input terminal of the comparator, and the other end of the ninth resistor is connected to the negative electrode of the first diode; one end of the tenth resistor is connected to the negative electrode of the first diode, and the other end of the tenth resistor is connected to the ground wire; the eleventh resistor is connected between the output terminal of the comparator and the control confirmation function line.

[0015] Optionally, the first branch further includes a twelfth resistor, a thirteenth resistor, and an eighth capacitor. One end of the twelfth resistor is connected to the second power supply terminal, and the other end of the twelfth resistor is connected to the second input terminal of the comparator; one end of the thirteenth resistor is connected to the second input terminal of the comparator, and the other end of the thirteenth resistor is connected to the ground wire; one end of the eighth capacitor is connected in parallel with the thirteenth resistor.

[0016] Optionally, the second branch includes an amplifier and a second diode. The first input terminal of the amplifier is connected to the control confirmation function line, and the second input terminal of the amplifier is connected to the output terminal of the amplifier; the anode of the second diode is connected to the output terminal of the amplifier, and the cathode of the second diode is connected to the third general-purpose pin.

[0017] Optionally, the second branch further includes a fourteenth resistor, a transient voltage suppression diode, and a ninth capacitor. One end of the fourteenth resistor is connected to the first input terminal of the amplifier, and the other end of the fourteenth resistor is connected to the control confirmation function line; the transient voltage suppression diode is connected between the other end of the fourteenth resistor and the ground wire; the ninth capacitor is connected between one end of the fourteenth resistor and the ground wire.

[0018] Optionally, the second branch further includes a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, a tenth capacitor, and an eleventh capacitor. One end of the fifteenth resistor is connected to the cathode of the second diode; one end of the sixteenth resistor is connected to the other end of the fifteenth resistor, and the other end of the sixteenth resistor is connected to the third general-purpose pin; one end of the seventeenth resistor is connected to the other end of the sixteenth resistor, and the other end of the seventeenth resistor is connected to the ground wire; one end of the tenth capacitor is connected to the other end of the fifteenth resistor, and the other end of the tenth capacitor is connected to the ground wire; the eleventh capacitor is connected in parallel with the seventeenth resistor.

[0019] According to a second aspect of the present application, a data update method is provided. The data update method is applied to the above-mentioned charging connection device, and the data update method includes: determining whether a programming instruction is received within a preset period starting from the power-on moment of the control module; if a programming instruction is received, the control module enters the programming mode; updating the configuration data in the control module by controlling the confirmation function line and the ground line.

[0020] Optionally, updating the configuration data in the control module by controlling the confirmation function line and the ground line includes: the general-purpose programming fixture updates the configuration data in the control module by controlling the confirmation function line and the ground line.

[0021] Optionally, if no programming instruction is received, the control module enters the charging mode.

[0022] According to a third aspect of the present application, a vehicle is further provided. The vehicle is connected to the above-mentioned charging connection device to charge the vehicle through the charging connection device.

[0023] According to a fourth aspect of the present application, a charging system is further provided. The charging system includes a vehicle and the above-mentioned charging connection device to charge the vehicle through the charging connection device.

[0024] In the charging connection device, data update method, vehicle, and charging system according to the embodiments of the present application, a communication module is added between the control module and the confirmation function line, so that the general-purpose programming fixture can update the configuration data in the control module through the confirmation function line and the ground line, which improves the limitation that a special programming fixture is required to update the configuration data of the charging connection device.

[0025] Other features and advantages of the present application will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative efforts.

[0027] In order to more completely understand the present application and its beneficial effects, the following description will be made in conjunction with the drawings, where the same reference numerals represent the same parts in the following description.

[0028] Figure 1 is a schematic structural diagram of the charging connection device provided in the exemplary embodiment of the present disclosure;

[0029] Figure 2It is a schematic block diagram of a charging connection device provided in an exemplary embodiment of the present disclosure;

[0030] Figure 3 It is a schematic circuit diagram of a communication module (32) provided in an exemplary embodiment of the present disclosure;

[0031] Figure 4 It is a partial schematic circuit diagram of a charging connection device provided in an exemplary embodiment of the present disclosure;

[0032] Figure 5 It is a schematic circuit diagram of a control module (31) provided in an exemplary embodiment of the present disclosure;

[0033] Figure 6 It is a schematic circuit diagram of a communication module (33) provided in an exemplary embodiment of the present disclosure;

[0034] Figure 7 It is a schematic flowchart of a data update method provided in an exemplary embodiment of the present disclosure.

[0035] Description of reference numerals:

[0036] 10, input three-pin plug;

[0037] 20, first cable;

[0038] 30, control box; 31, control module; 32, communication module; 321, peripheral circuit; 33, communication module; 331, first branch; 332, second branch; 34, power module; 35, relay;

[0039] 40, second cable;

[0040] 50, output charging gun head. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0042] Please refer to Figures 1 to 7 , Figure 1 The shown charging connection device may exemplarily include an input three-pin plug 10, a first cable 20, a control box 30, a second cable 40, and an output charging gun head 50 that are electrically connected in sequence. The features and advantages of each part will be described in detail subsequently.

[0043] The embodiment of the present application provides a charging connection device, such asFigure 2 As shown in the figure, the charging connection device includes a control confirmation function line CP, a ground wire PE, a control module 31, and a communication module 32. The communication module 32 is electrically connected to the control module 31, the control confirmation function line CP, and the ground wire PE, and is used to update the configuration data in the control module 31 through the control confirmation function line CP and the ground wire PE.

[0044] It can be understood that, for the charging connection device of the embodiment of the present application, by adding a communication module 32 between the control module 31 and the control confirmation function line CP, the general-purpose programming fixture can update the configuration data in the control module 31 through the control confirmation function line CP and the ground wire PE, which improves the limitation that a special programming fixture is required to update the configuration data of the charging connection device.

[0045] It should be noted that the control module 31 and the communication module 32 can be placed in the control box 30. The control confirmation function line CP can extend from the control box 30 to the output charging gun head 50 through the second cable 40. The ground wire PE can extend from the input three-pin plug 10 through the first cable 20, the control box 30, and the second cable 40 to the output charging gun head 50.

[0046] The control confirmation function line CP is used to transmit the CP signal in the charging mode, and jointly realizes data transmission with the ground wire PE in the programming mode.

[0047] In some of the embodiments, as Figure 3 shown in the figure, the communication module 32 includes a serial communication chip U11 and a peripheral circuit 321. The serial communication chip U11 is connected to the control module 31 through a serial communication interface; the peripheral circuit 321 is connected between the serial communication chip U11 and the control confirmation function line CP, and the peripheral circuit 321 is connected between the serial communication chip U11 and the control module 31.

[0048] It should be noted that the peripheral circuit 321 is used to adaptively implement the parameter setting of the serial communication chip U11. The serial communication chip U11 can be a serial communication chip such as a Lin communication chip or a CON communication chip.

[0049] Optionally, as Figure 3As shown, the peripheral circuit 321 includes at least one of a first resistor RL10, a second resistor RL18, a first capacitor CL5, a third resistor RL2, and a fourth resistor RL1. One end of the first resistor RL10 is connected to the control confirmation function line CP; one end of the second resistor RL18 is connected to the other end of the first resistor RL10, and the other end of the second resistor RL18 is connected to the transmit-receive pin LIN of the serial communication chip U11; one end of the first capacitor CL5 is connected to one end of the second resistor RL18 and the other end of the first resistor RL10, and the other end of the first capacitor CL5 is connected to the ground pin GND of the serial communication chip U11 and the ground wire PE; the third resistor RL2 is connected between the serial transmit pin TXD of the serial communication chip U11 and the serial transmit pin PE0 / SCI0_TX of the control module 31; the fourth resistor RL1 is connected between the serial receive pin RXD of the serial communication chip U11 and the serial receive pin PE1 / SCI0_RX of the control module 31.

[0050] Optionally, the peripheral circuit 321 further includes at least one of a fifth resistor RL3, a second capacitor C11, a sixth resistor RL5, a seventh resistor RL6, a third capacitor CL1, a fourth capacitor CL6, a fifth capacitor CL3, and an eighth resistor RL7. One end of the fifth resistor RL3 is connected to one end of the fourth resistor RL1 and the serial receive pin PE1 / SCI0_RX of the control module 31, and the other end of the fifth resistor RL3 is connected to the first power supply terminal +5V and the first power pin IOVCC of the control module 31; one end of the second capacitor C11 is connected to the first power supply terminal +5V, and the other end of the second capacitor C11 is connected to the ground wire PE and the second power pin IOVSS of the control module 31; one end of the sixth resistor RL5 is connected to the wake-up pin SLP_N of the serial communication chip U11; one end of the seventh resistor RL6 is connected to the other end of the sixth resistor RL5, the first general-purpose pin PB7 / PIB7 / ADC15 of the control module 31, and the wake-up pin SLP_N, and the other end of the seventh resistor RL6 is connected to the ground wire PE; one end of the third capacitor CL1 is connected to one end of the seventh resistor RL6, and the other end of the third capacitor CL1 is connected to the ground wire PE; one end of the fourth capacitor CL6 is connected to the second power supply terminal +12V and the power pin Vbat of the serial communication chip U11, and the other end of the fourth capacitor CL6 is connected to the ground wire PE; the fifth capacitor CL3 is connected in parallel with the fourth capacitor CL6; the eighth resistor RL7 is connected between the second power supply terminal +12V and the enable pin E_N of the serial communication chip U11.

[0051] It should be noted that the serial communication chip U11 and the peripheral circuit 321 are used to update the configuration data in the control module 31 for a general-purpose programming fixture. The programming process is simple and does not require a special programming fixture. Moreover, the circuit is simple and the cost is low.

[0052] Optionally, as Figure 4 , Figure 5 shown, the control module 31 includes a micro control unit U10, a sixth capacitor C10, and a seventh capacitor C13. The micro control unit U10 is connected to the communication module 32. When the micro control unit U10 receives a programming instruction within a preset time period starting from the power-on moment, it enters the programming mode. One end of the sixth capacitor C10 is connected to the first power supply terminal +5V and the third power supply pin VDD of the micro control unit U10, and the other end of the sixth capacitor C10 is connected to the ground wire PE and the fourth power supply pin VSS of the micro control unit U10. One end of the seventh capacitor C13 is connected to the first power supply terminal +5V and the fifth power supply pin 39 of the micro control unit U10, and the other end of the seventh capacitor C13 is connected to the ground wire PE and the sixth power supply pin 38 of the micro control unit U10.

[0053] It should be noted that the micro control unit U10 can be an MCU, a DSP, or a programmable logic gate array.

[0054] Optionally, as Figure 4 shown, the charging connection device further includes a power supply module 34, a power switch K, and a relay 35. The input end of the power supply module 34 is connected to a power line, and the first output end of the power supply module 34 is connected to the first power supply terminal +5V. The control end of the power switch K is connected to the micro control unit U10, and one end of the power switch K is connected to the second output end of the power supply module 34. The coil of the relay 35 is connected between the other end of the power switch K and the ground wire PE, and the contact group of the relay 35 is connected in series in the power line.

[0055] It should be noted that the power line can be used to transmit mains power or direct current. The mains power can be single-phase alternating current or three-phase alternating current. L-in and N-in represent the input ends of the power lines for transmitting single-phase alternating current in the input three-pin plug 10. L-out and N-out represent the output ends of the power lines for transmitting single-phase alternating current in the output charging gun head.

[0056] The power supply module 34 can provide the required operating voltage for the charging connection device, such as operating voltages of +5V, +12V, -12V, etc. The micro control unit U10 can be used to control the conduction or disconnection of the power switch K to control whether to supply power to the coil of the relay 35. The contact group of the relay 35 can control the conduction or disconnection of the power line, thereby controlling whether the charging connection device charges externally.

[0057] Optionally, the charging connection device further includes a display, which is connected to the micro control unit U10 for displaying the parameters of the micro control unit U10.

[0058] Optionally, as Figure 6As shown, the charging connection device further includes a communication module 33, and the communication module 33 is connected between the control confirmation function line CP and the control module 31.

[0059] It should be noted that the communication module 33 is used to implement the transmission and processing of the CP signal (control pilot function signal). This CP signal is mainly used to monitor the functions of the interaction between the electric vehicle and the electric vehicle supply equipment (charging pile), ensure smooth communication during the charging process, including charging guidance, confirmation of whether the charging gun has completed physical connection, etc., and at the same time, through specific communication protocols and mechanisms, realize data interaction between the charging pile and the vehicle, the power grid, and the background management system.

[0060] Optionally, as Figure 6 shown, the communication module 33 includes a first branch 331 and a second branch 332. The first branch 331 is connected between the control confirmation function line CP and the second general-purpose pin PD7 / PID7PWM_CH5 of the control module 31; the second branch 332 is connected between the control confirmation function line CP and the third general-purpose pin PC0 / ADC16 of the control module 31.

[0061] It should be noted that the pin of the control module 31 connected to the first branch 331 is not limited to the second general-purpose pin PD7 / PID7PWM_CH5, and can also be other general-purpose pins of the control module 31. The pin of the control module 31 connected to the second branch 332 is not limited to the third general-purpose pin PC0 / ADC16, and can also be other general-purpose pins of the control module 31.

[0062] Optionally, as Figure 6 shown, the first branch 331 includes a first diode D10 and a comparator U20A. The positive electrode of the first diode D10 is connected to the second general-purpose pin PD7 / PID7PWM_CH5; the first input terminal of the comparator U20A is connected to the negative electrode of the first diode D10, the second input terminal of the comparator U20A accesses a first reference voltage, and the output terminal of the comparator U20A is connected to the control confirmation function line CP.

[0063] It should be noted that the first input terminal of the comparator U20A can be the non-inverting input terminal of the comparator U20A. The second input terminal of the comparator U20A can be the inverting input terminal of the comparator U20A. The operating voltage required by the comparator U20A can be, for example, +12V and -12V.

[0064] Optionally, as Figure 6As shown, the first branch 331 further includes at least one of a ninth resistor R12, a tenth resistor R13, and an eleventh resistor R14. One end of the ninth resistor R12 is connected to the first input terminal of the comparator U20A, and the other end of the ninth resistor R12 is connected to the cathode of the first diode D10. One end of the tenth resistor R13 is connected to the cathode of the first diode D10, and the other end of the tenth resistor R13 is connected to the ground wire PE. The eleventh resistor R14 is connected between the output terminal of the comparator U20A and the control confirmation function line CP.

[0065] It should be noted that the ninth resistor R12 and the tenth resistor R13 are used to divide the voltage at the cathode of the first diode D10. The eleventh resistor R14 is used to adjust the output voltage and / or current of the comparator U20A.

[0066] Optionally, as Figure 6 shown, the first branch 331 further includes a twelfth resistor R11, a thirteenth resistor R10, and an eighth capacitor C20. One end of the twelfth resistor R11 is connected to the second power supply terminal +12V, and the other end of the twelfth resistor R11 is connected to the second input terminal of the comparator U20A. One end of the thirteenth resistor R10 is connected to the second input terminal of the comparator U20A, and the other end of the thirteenth resistor R10 is connected to the ground wire PE. One end of the eighth capacitor C20 is connected in parallel with the thirteenth resistor R10.

[0067] It should be noted that the twelfth resistor R11 and the thirteenth resistor R10 are used to divide the voltage of the second power supply terminal +12V to obtain a first reference voltage. The eighth capacitor C20 can make the first reference voltage more stable.

[0068] Optionally, as Figure 6 shown, the second branch 332 includes an amplifier U20B and a second diode D11. The first input terminal of the amplifier U20B is connected to the control confirmation function line CP, and the second input terminal of the amplifier U20B is connected to the output terminal of the amplifier U20B. The anode of the second diode D11 is connected to the output terminal of the amplifier U20B, and the cathode of the second diode D11 is connected to the third general-purpose pin PC0 / ADC16.

[0069] It should be noted that the first input terminal of the amplifier U20B can be the non-inverting input terminal of the amplifier U20B, and the second input terminal of the amplifier U20B can be the inverting input terminal of the amplifier U20B.

[0070] Optionally, as Figure 6As shown, the second branch 332 further includes at least one of a fourteenth resistor R15, a transient voltage suppression diode TVS1, and a ninth capacitor C16. One end of the fourteenth resistor R15 is connected to the first input terminal of the amplifier U20B, and the other end of the fourteenth resistor R15 is connected to the control confirmation function line CP; the transient voltage suppression diode TVS1 is connected between the other end of the fourteenth resistor R15 and the ground wire PE; the ninth capacitor C16 is connected between one end of the fourteenth resistor R15 and the ground wire PE.

[0071] It should be noted that the transient voltage suppression diode TVS1 is used to suppress the transient voltage impact at the other end of the fourteenth resistor R15.

[0072] Optionally, as Figure 6 shown, the second branch 332 further includes at least one of a fifteenth resistor R17, a sixteenth resistor R18, a seventeenth resistor R19, a tenth capacitor C22, and an eleventh capacitor C23. One end of the fifteenth resistor R17 is connected to the cathode of the second diode D11; one end of the sixteenth resistor R18 is connected to the other end of the fifteenth resistor R17, and the other end of the sixteenth resistor R18 is connected to the third general-purpose pin PC0 / ADC16; one end of the seventeenth resistor R19 is connected to the other end of the sixteenth resistor R18, and the other end of the seventeenth resistor R19 is connected to the ground wire PE; one end of the tenth capacitor C22 is connected to the other end of the fifteenth resistor R17, and the other end of the tenth capacitor C22 is connected to the ground wire PE; the eleventh capacitor C23 is connected in parallel with the seventeenth resistor R19.

[0073] An embodiment of the present application provides a data update method. As Figure 7 shown, this data update method is applied to the above-mentioned charging connection device. The data update method includes: determining whether a programming instruction is received within a preset period starting from the power-on moment of the control module 31; if a programming instruction is received, the control module 31 enters the programming mode; and updating the configuration data in the control module 31 through the control confirmation function line CP and the ground wire PE.

[0074] It can be understood that since the data update method of the embodiment of the present application is applied to the above-mentioned charging connection device, a communication module 32 can also be added between the control module 31 and the control confirmation function line CP, so that the general-purpose programming jig can update the configuration data in the control module 31 through the control confirmation function line CP and the ground wire PE, which improves the limitation that a special programming jig is required to update the configuration data of the charging connection device.

[0075] It should be noted that the general-purpose programming fixture updates the configuration data in the control module 31 by controlling and confirming the function line CP and the ground wire PE. The preset time period can be greater than 0 seconds and less than 20 seconds. Preferably, it can be one of 3 seconds, 4 seconds, 5 seconds, 6 seconds, 7 seconds, 8 seconds, or 9 seconds.

[0076] Optionally, if no programming instruction is received, the control module 31 enters the charging mode.

[0077] Optionally, if a programming instruction is received, the control module 31 enters the programming mode, which may include at least one of the following steps.

[0078] The electric gun enters the extended session mode. The extended session mode is different from the standard mode and is a mode that can receive the calculated key.

[0079] Secure access and calculate the key. Enter the programming session mode to program the software. Secure access is performed through the confirmed key. These can be used to confirm the legitimacy of the source of the program to be upgraded and the legitimacy of the upgrade tool.

[0080] Data erasure, such as erasing the old version of the software.

[0081] Data transmission, such as downloading the upgrade file.

[0082] Data verification, such as verifying the file integrity.

[0083] The upgrade is successful. After the upgrade is successful, the charging connection device is self-started.

[0084] It should be noted that the charging connection device can be exemplarily a charging pile. In summary, the charging connection device provided by the embodiments of the present application has a simple circuit, low cost, simple programming, does not require a specific configuration device, and is flexible in programming. Only a general-purpose programming device can complete software update through the CP line and the PE line on the gun head. This function does not require opening the case, can significantly reduce the labor cost, and greatly improve the convenience of after-sales service in the market.

[0085] The embodiment of the present application also provides a vehicle, which is connected to the above-mentioned charging connection device to charge the vehicle through the charging connection device.

[0086] The embodiment of the present application also provides a charging system, which includes a vehicle and the above-mentioned charging connection device to charge the vehicle through the charging connection device.

[0087] It can be understood that since the charging connection device in the embodiment of the present application charges the vehicle, a communication module 32 can also be added between the control module 31 and the control confirmation function line CP, so that the general-purpose programming jig can update the configuration data in the control module 31 through the control confirmation function line CP and the ground wire PE, which improves the limitation that a special programming jig is required to update the configuration data of the charging connection device.

[0088] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically defined.

[0089] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0090] The embodiments, implementation manners and related technical features of the present application can be combined and replaced with each other without conflict.

[0091] The above are only the preferred embodiments of the present application and do not impose any form of limitation on the present application. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A charging connection device, characterized in that, The charging connection device includes: A control confirmation function line (CP) and a ground line (PE); A control module (31); A communication module (32), which is electrically connected to the control module (31), the control confirmation function line (CP), and the ground line (PE), and is used to update the configuration data in the control module (31) through the control confirmation function line (CP) and the ground line (PE).

2. The charging connection device according to claim 1, characterized in that The communication module (32) includes: A serial communication chip (U11), which is connected to the control module (31) through a serial communication interface; A peripheral circuit (321), which is connected between the serial communication chip (U11) and the control confirmation function line (CP), and the peripheral circuit (321) is also connected between the serial communication chip (U11) and the control module (31).

3. The charging connection device according to claim 2, wherein The peripheral circuit (321) includes: A first resistor (RL10), one end of the first resistor (RL10) is connected to the control confirmation function line (CP); A second resistor (RL18), one end of the second resistor (RL18) is connected to the other end of the first resistor (RL10), and the other end of the second resistor (RL18) is connected to the transmit-receive pin (LIN) of the serial communication chip (U11); A first capacitor (CL5), one end of the first capacitor (CL5) is connected to one end of the second resistor (RL18) and the other end of the first resistor (RL10), and the other end of the first capacitor (CL5) is connected to the ground pin (GND) of the serial communication chip (U11) and the ground line (PE); A third resistor (RL2), which is connected between the serial transmit pin (TXD) of the serial communication chip (U11) and the serial transmit pin (PE0 / SCI0_TX) of the control module (31); A fourth resistor (RL1), which is connected between the serial receive pin (RXD) of the serial communication chip (U11) and the serial receive pin (PE1 / SCI0_RX) of the control module (31).

4. The charging connection device according to claim 3, wherein The peripheral circuit (321) further includes: A fifth resistor (RL3), one end of the fifth resistor (RL3) is connected to one end of the fourth resistor (RL1) and the serial receive pin (PE1 / SCI0_RX) of the control module (31), and the other end of the fifth resistor (RL3) is connected to the first power supply terminal (+5V) and the first power pin (IOVCC) of the control module (31); A second capacitor (C11), one end of the second capacitor (C11) is connected to the first power supply terminal (+5V), and the other end of the second capacitor (C11) is connected to the ground line (PE) and the second power pin (IOVSS) of the control module (31); A sixth resistor (RL5), one end of the sixth resistor (RL5) is connected to the wake-up pin (SLP_N) of the serial communication chip (U11); The seventh resistor (RL6), one end of the seventh resistor (RL6) is connected to the other end of the sixth resistor (RL5), the first general-purpose pin (PB7 / PIB7 / ADC15) of the control module (31), and the wake-up pin (SLP_N), and the other end of the seventh resistor (RL6) is connected to the ground wire (PE); The third capacitor (CL1), one end of the third capacitor (CL1) is connected to one end of the seventh resistor (RL6), and the other end of the third capacitor (CL1) is connected to the ground wire (PE); The fourth capacitor (CL6), one end of the fourth capacitor (CL6) is connected to the second power supply terminal (+12V) and the power supply pin (Vbat) of the serial communication chip (U11), and the other end of the fourth capacitor (CL6) is connected to the ground wire (PE); The fifth capacitor (CL3), the fifth capacitor (CL3) is connected in parallel with the fourth capacitor (CL6); The eighth resistor (RL7), the eighth resistor (RL7) is connected between the second power supply terminal (+12V) and the enable pin (E_N) of the serial communication chip (U11).

5. The charging connection device according to any one of claims 1-4, characterized in that, The control module (31) includes: A microcontroller unit (U10), the microcontroller unit (U10) is connected to the communication module (32), and the microcontroller unit (U10) enters the programming mode when a programming instruction is received within a preset period starting from the power-on moment; The sixth capacitor (C10), one end of the sixth capacitor (C10) is connected to the first power supply terminal (+5V) and the third power supply pin (VDD) of the microcontroller unit (U10), and the other end of the sixth capacitor (C10) is connected to the ground wire (PE) and the fourth power supply pin (VSS) of the microcontroller unit (U10); The seventh capacitor (C13), one end of the seventh capacitor (C13) is connected to the first power supply terminal (+5V) and the fifth power supply pin (39) of the microcontroller unit (U10), and the other end of the seventh capacitor (C13) is connected to the ground wire (PE) and the sixth power supply pin (38) of the microcontroller unit (U10).

6. The charging connection device according to claim 5, wherein The charging connection device further includes: A power supply module (34), the input end of the power supply module (34) is connected to the power supply line, and the first output end of the power supply module (34) is connected to the first power supply terminal (+5V); A power switch (K), the control end of the power switch (K) is connected to the microcontroller unit (U10), and one end of the power switch (K) is connected to the second output end of the power supply module (34); A relay (35), the coil of the relay (35) is connected between the other end of the power switch (K) and the ground wire (PE), and the contact group of the relay (35) is connected in series in the power supply line.

7. The charging connection device according to any one of claims 1-4, characterized in that The charging connection device further includes a communication module (33), and the communication module (33) is connected between the control confirmation function line (CP) and the control module (31).

8. The charging connection device according to claim 7, wherein, The communication module (33) includes: The first branch (331) is connected between the control confirmation function line (CP) and the second general-purpose pin (PD7 / PID7PWM_CH5) of the control module (31); The second branch (332) is connected between the control confirmation function line (CP) and the third general-purpose pin (PC0 / ADC16) of the control module (31).

9. The charging connection device according to claim 8, characterized in that, The first branch (331) includes: A first diode (D10), the positive electrode of the first diode (D10) is connected to the second general-purpose pin (PD7 / PID7PWM_CH5); A comparator (U20A), the first input terminal of the comparator (U20A) is connected to the negative electrode of the first diode (D10), the second input terminal of the comparator (U20A) is connected to a first reference voltage, and the output terminal of the comparator (U20A) is connected to the control confirmation function line (CP).

10. The charging connection device according to claim 9, characterized in that, The first branch (331) further includes: A ninth resistor (R12), one end of the ninth resistor (R12) is connected to the first input terminal of the comparator (U20A), and the other end of the ninth resistor (R12) is connected to the negative electrode of the first diode (D10); A tenth resistor (R13), one end of the tenth resistor (R13) is connected to the negative electrode of the first diode (D10), and the other end of the tenth resistor (R13) is connected to the ground wire (PE); An eleventh resistor (R14), the eleventh resistor (R14) is connected between the output terminal of the comparator (U20A) and the control confirmation function line (CP).

11. The charging connection device according to claim 10, characterized in that, The first branch (331) further includes: A twelfth resistor (R11), one end of the twelfth resistor (R11) is connected to the second power supply terminal (+12V), and the other end of the twelfth resistor (R11) is connected to the second input terminal of the comparator (U20A); A thirteenth resistor (R10), one end of the thirteenth resistor (R10) is connected to the second input terminal of the comparator (U20A), and the other end of the thirteenth resistor (R10) is connected to the ground wire (PE); An eighth capacitor (C20), one end of the eighth capacitor (C20) is connected in parallel with the thirteenth resistor (R10).

12. The charging connection device according to claim 8, wherein, The second branch (332) includes: An amplifier (U20B), the first input terminal of the amplifier (U20B) is connected to the control confirmation function line (CP), and the second input terminal of the amplifier (U20B) is connected to the output terminal of the amplifier (U20B); A second diode (D11), the anode of the second diode (D11) is connected to the output terminal of the amplifier (U20B), and the cathode of the second diode (D11) is connected to the third general-purpose pin (PC0 / ADC16).

13. The charging connection device according to claim 12, wherein The second branch (332) further includes: A fourteenth resistor (R15), one end of the fourteenth resistor (R15) is connected to the first input terminal of the amplifier (U20B), and the other end of the fourteenth resistor (R15) is connected to the control confirmation function line (CP); Transient voltage suppression diode (TVS1), the transient voltage suppression diode (TVS1) is connected between the other end of the fourteenth resistor (R15) and the ground wire (PE); Ninth capacitor (C16), the ninth capacitor (C16) is connected between one end of the fourteenth resistor (R15) and the ground wire (PE).

14. The charging connection device according to claim 13, wherein The second branch (332) further includes: Fifteenth resistor (R17), one end of the fifteenth resistor (R17) is connected to the cathode of the second diode (D11); Sixteenth resistor (R18), one end of the sixteenth resistor (R18) is connected to the other end of the fifteenth resistor (R17), and the other end of the sixteenth resistor (R18) is connected to the third general-purpose pin (PC0 / ADC16); Seventeenth resistor (R19), one end of the seventeenth resistor (R19) is connected to the other end of the sixteenth resistor (R18), and the other end of the seventeenth resistor (R19) is connected to the ground wire (PE); Tenth capacitor (C22), one end of the tenth capacitor (C22) is connected to the other end of the fifteenth resistor (R17), and the other end of the tenth capacitor (C22) is connected to the ground wire (PE); Eleventh capacitor (C23), the eleventh capacitor (C23) is connected in parallel with the seventeenth resistor (R19).

15. A data update method, characterized in that, The data update method is applied to the charging connection device according to any one of claims 1-14, and the data update method includes: Determine whether a programming instruction is received within a preset period starting from the power-on moment of the control module (31); If the programming instruction is received, the control module (31) enters the programming mode; Update the configuration data in the control module (31) through the control confirmation function line (CP) and the ground wire (PE).

16. The data update method according to claim 15, wherein Updating the configuration data in the control module (31) through the control confirmation function line (CP) and the ground wire (PE) includes: The general-purpose programming fixture updates the configuration data in the control module (31) through the control confirmation function line (CP) and the ground wire (PE).

17. The data update method according to claim 15, wherein After determining whether a programming instruction is received within a preset period starting from the power-on moment of the control module (31), the data update method further includes: If the programming instruction is not received, the control module (31) enters the charging mode.

18. A vehicle, characterized in that, The vehicle is connected to the charging connection device according to any one of claims 1-14 to charge the vehicle through the charging connection device.

19. A charging system, characterized in that, The charging system includes a vehicle and the charging connection device according to any one of claims 1-14 to charge the vehicle through the charging connection device.

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