Charging circuit board and vehicle

Abstract

The present invention provides a charging circuit board and a vehicle, the charging circuit board comprising a first reserved area, a first resistor, a second reserved area, a wake-up module, a third reserved area, a sampling module, a first power supply module, and a main control module, the enable terminal of the first power supply module being connected to the output terminal of the wake-up module, the input terminal of the first power supply module being connected to a preset power supply, and the first output terminal of the first power supply module being connected to a wake-up switch module, the other terminal of the third resistor, and the main control module, respectively, the first charging standard having a second resistor in the first reserved area, the second charging standard having a wake-up switch module in the second reserved area and a third resistor in the third reserved area, and the wake-up switch module being conductive in the sleep state, and the main control module obtaining the connection state of the charging connection confirmation terminal by sampling via the sampling module. The charging circuit board of the present invention can reduce development and testing costs and reduce component management costs.

Description

Technical Field

[0001] This application claims the priority of a Chinese patent application filed on August 18, 2023, with the application number 202311052407.4 and the title "Charging Circuit Board and Vehicle", and all of its contents are incorporated into this application by reference.

[0002] The present invention relates to the technical field of vehicles, and particularly to a charging circuit board and a vehicle.

Background Art

[0003] The low-speed charging (i.e., AC charging) conductive charging system of electric vehicles currently has mainly four standards in the world, namely in China, Europe, North America, and Japan. For one connection confirmation signal, i.e., the CC signal of the Chinese standard or the PP signal of the European, American, and Japanese standards, the entire vehicle needs to design corresponding circuits to detect and identify the connection confirmation signal and the corresponding charging gun power signal. In the standards of the four regions, the principles of the charging pilot circuits of low-speed charging guns are also similar.

[0004] In the related art, the switching flexibility of the charging interface circuits in different regional markets is low. In order to adapt to the controller, different circuits need to be designed respectively, and tests need to be carried out on these circuits and the controller, resulting in high development and test costs. Also, when designing different circuits to adapt to the controller, more components are introduced, increasing the cost of component management.

Summary of the Invention

[0005] An object of the present invention is to at least to some extent solve one of the technical problems in the related art. To this end, the first object of the present invention is to provide a charging circuit board, which can realize the sampling of low-speed charging guidance signals of two types of regional standards in China, Europe, the United States, and Japan by replacing the devices in the reserved area, reduce the development and test costs, and reduce the component management costs.

[0006] A second object of the present invention is to provide a vehicle.

[0007] To achieve the above objective, an embodiment of the first aspect of the present invention is a charging circuit board including a first reserved area, a first resistor, a second reserved area, a wake-up module, a third reserved area, a sampling module, a first power supply module, and a main control module, wherein the first reserved area is suitable for providing a second resistor, one end of the second resistor is connected to a charging connection confirmation terminal, the other end of the second resistor is connected to one end of the first resistor and the input terminal of the wake-up module, and the other end of the first resistor is connected to a preset power supply; the second reserved area is suitable for providing a wake-up switch module, the wake-up switch module is connected in parallel to the second resistor; the third reserved area is suitable for providing a third resistor, one end of the third resistor is connected to the charging connection confirmation terminal and the input terminal of the sampling module, the output terminal of the sampling module is connected to the main control module; the enable terminal of the first power supply module is connected to the output terminal of the wake-up module; the input terminal of the first power supply module is connected to the preset power supply; and the first output terminal of the first power supply module is connected to the The wake-up switch module is connected to the other end of the third resistor and the main control module, respectively. In the first charging standard, the second resistor is provided in the first reserved area, the wake-up module outputs a wake-up signal to the enable terminal of the first power module based on the level received from the charging connection confirmation terminal via the second resistor, the first power module supplies power to the main control module based on the wake-up signal to wake up the main control module, the main control module samples via the sampling module to obtain the connection state of the charging connection confirmation terminal, In the second charging standard, the wake-up switch module is provided in the second reserved area, the third resistor is provided in the third reserved area, and the wake-up switch module is in a conductive state in the sleep state, the wake-up module outputs a wake-up signal to the enable terminal of the first power module based on the level received from the charging connection confirmation terminal via the wake-up switch module, and the first power module,The present invention provides a charging circuit board that supplies power to the wake-up switch module based on the wake-up signal to shut it off, supplies power to the main control module to wake it up, supplies power to the third resistor, and the main control module samples via the sampling module to obtain the connection status of the charging connection confirmation terminal.

[0008] According to the charging circuit board according to an embodiment of the present invention, in the first charging standard, a second resistor is provided in the first reserved area, the wake-up module outputs a wake-up signal to the enable terminal of the first power supply module based on the level received from the charging connection confirmation terminal via the second resistor, the first power supply module supplies power to the main control module based on the wake-up signal to wake up the main control module, the main control module obtains the connection state of the charging connection confirmation terminal by sampling via the sampling module, and in the second charging standard, a wake-up switch module is provided in the second reserved area, and a third resistor is provided in the third reserved area, and The wake-up switch module is conductive in the sleep state, and the wake-up module outputs a wake-up signal to the enable terminal of the first power supply module based on the level received from the charging connection confirmation terminal via the wake-up switch module. The first power supply module supplies power to the wake-up switch module based on the wake-up signal to shut it off, supplies power to the main control module to wake it up, and supplies power to the third resistor. The main control module samples the connection status of the charging connection confirmation terminal via the sampling module. As a result, the charging circuit board can achieve sampling of two types of regional standard slow-speed charging guidance signals, one for Central Europe and the other for the US and Japan, by replacing devices in the reserved area, thereby reducing development and testing costs and component management costs.

[0009] Furthermore, the charging circuit board according to the above embodiment of the present invention may have the following additional technical features.

[0010] According to one embodiment of the present invention, the wake-up module includes a wake-up level conversion circuit and a trigger circuit, wherein the wake-up level conversion circuit is connected to the other end of the second resistor and to the wake-up switch module, respectively, and in a first charging standard, the wake-up level conversion circuit outputs an edge signal based on the level received from the charging connection confirmation terminal via the second resistor, and in a second charging standard, the wake-up level conversion circuit outputs an edge signal based on the level received from the charging connection confirmation terminal via the wake-up switch module, and the trigger circuit is connected to the wake-up level conversion circuit and to the enable terminal of the first power supply module, respectively, and the trigger circuit generates the wake-up signal based on the edge signal.

[0011] According to one embodiment of the present invention, the wake-up module further includes a trigger clear circuit, the trigger clear circuit being connected to the main control module and the trigger circuit, respectively, the main control module outputs a clear enable signal to the trigger clear circuit when sleep is required, the trigger clear circuit generates a trigger clear signal based on the clear enable signal, the trigger circuit generates a sleep signal at the enable terminal of the first power supply module based on the trigger clear signal, the first power supply module stops supplying power to the main control module in a first charging standard and stops supplying power to the wake-up switch module, the main control module and the third resistor in a second charging standard.

[0012] According to one embodiment of the present invention, the charging circuit board further includes a sampling switch module, the sampling switch module being connected between the charging connection confirmation terminal and the input terminal of the sampling module, the power supply terminal of the sampling switch module being connected to the second output terminal of the first power supply module, the first power supply module supplying power to the sampling switch module based on the wake-up signal to make the sampling switch module conductive, and stopping the power supply to the sampling switch module based on the sleep signal to make the sampling switch module shut off.

[0013] According to one embodiment of the present invention, the charging circuit board further includes a second power supply module, the input terminal of the second power supply module is connected to the preset power supply, and the output terminal of the second power supply module is connected to the wake-up module to supply power to the wake-up module.

[0014] According to one embodiment of the present invention, the wake-up switch module includes a first switch and a second switch, wherein the first end of the first switch is connected to the charging connection confirmation terminal, the second end of the first switch is connected to the wake-up module, the first end of the second switch is connected to the control terminal of the first switch, the control terminal of the first switch is further connected to the preset power supply, the second end of the second switch is grounded, and the control terminal of the second switch is connected to the first output terminal of the first power supply module.

[0015] According to one embodiment of the present invention, the wake-up level conversion circuit includes a third switch, the first end of the third switch is connected to the preset power supply, the second end of the third switch is connected to the trigger circuit, and the control end of the third switch is connected to one end of the first resistor, the other end of the second resistor, and the wake-up switch module, respectively.

[0016] According to one embodiment of the present invention, the trigger circuit includes a trigger, the first input terminal of the trigger is connected to the wake-up level conversion circuit, and the output terminal of the trigger is connected to the enable terminal of the first power supply module.

[0017] According to one embodiment of the present invention, the trigger clear circuit includes a fourth switch, the first end of the fourth switch is connected to the second input terminal of the trigger, the second end of the fourth switch is grounded, and the control terminal of the fourth switch is connected to the main control module.

[0018] According to one embodiment of the present invention, the sampling switch module includes a fifth switch, the first end of the fifth switch is connected to the charging connection confirmation terminal, the second end of the fifth switch is connected to the sampling module, and the control end of the fifth switch is connected to the second output terminal of the first power supply module.

[0019] To achieve the above objective, a second embodiment of the present invention provides a vehicle including the above-described charging circuit board.

[0020] According to the vehicle of the embodiment of the present invention, the above-mentioned charging circuit board can reduce development and testing costs, and can also reduce parts management costs.

[0021] Additional aspects and advantages of the present invention are partially shown in the following description, and the rest will be apparent from the following description or understood through the practice of the present invention. [Brief explanation of the drawing]

[0022] [Figure 1] This is a schematic block diagram of a charging circuit board according to an embodiment of the present invention. [Figure 2] This is a schematic block diagram of a charging circuit board according to one embodiment of the present invention. [Figure 3] This is a schematic circuit diagram of a charging circuit board according to one embodiment of the present invention. [Figure 4]It is a block schematic diagram of a vehicle according to an embodiment of the present invention.

Embodiment for Carrying out the Invention

[0023] Hereinafter, embodiments of the present invention will be described in detail. Examples of the described embodiments are shown in the drawings, and throughout the description, the same or similar symbols indicate the same or similar elements or elements having the same or similar functions. Hereinafter, the embodiments described with reference to the drawings are exemplary and are for explaining the present invention, and should not be understood as limiting the present invention.

[0024] Hereinafter, a charging circuit board and a vehicle according to an embodiment of the present invention will be described while referring to the drawings.

[0025] FIG. 1 is a block schematic diagram of a charging circuit board according to an embodiment of the present invention.

[0026] As shown in FIG. 1, the charging circuit board 100 of the embodiment of the present invention includes a first reserved area, a first resistor R1, a second reserved area, a wake-up module 110, a third reserved area, a sampling module 120, a first power supply module 130, and a main control module 140.

[0027] The first reserved area is suitable for providing a second resistor R2, with one end of the second resistor R2 connected to the charging connection confirmation terminal 150, and the other end of the second resistor R2 connected to one end of the first resistor R1 and the input terminal of the wake-up module 110, respectively, and the other end of the first resistor R1 connected to the preset power supply VCC. The second reserved area is suitable for providing a wake-up switch module 160, with the wake-up switch module 160 connected in parallel to the second resistor R2. The third reserved area is suitable for providing a third resistor R3, with one end of the third resistor R3 connected to the charging connection confirmation terminal 150 and the input terminal of the wake-up module 110. The input terminals of the ring module 120 are connected to each other, the output terminal of the sampling module 120 is connected to the main control module 140, the enable terminal of the first power supply module 130 is connected to the output terminal of the wake-up module 110, the input terminal of the first power supply module 130 is connected to the preset power supply VCC, and the first output terminal of the first power supply module 130 is connected to the wake-up switch module 160, the other end of the third resistor R3 and the main control module 140, respectively, and in the first charging standard, the second resistor R2 is provided in the first reserved area, and The wake-up module 110 outputs a wake-up signal to the enable terminal of the first power module 130 based on the level received from the charging connection confirmation terminal 150 via the second resistor R2, the first power module 130 supplies power to the main control module 140 based on the wake-up signal to wake up the main control module 140, the main control module 140 obtains the connection state of the charging connection confirmation terminal 150 by sampling via the sampling module 120, in the second charging standard, the wake-up switch module 160 is provided in the second reserved area, the third resistor R3 is provided in the third reserved area, and the wake-up switch module 160 is in a conductive state in the sleep state, the wake-up module 110 outputs a wake-up signal to the enable terminal of the first power module 130 based on the level received from the charging connection confirmation terminal 150 via the wake-up switch module 160, the first power module 130 supplies power to the wake-up switch module 160 based on the wake-up signal to shut down the wake-up switch module 160,Power is supplied to the main control module 140 to wake it up, power is supplied to the third resistor R3, and the main control module 140 samples via the sampling module 120 to obtain the connection status of the charging connection confirmation terminal 150. Here, the preset power supply VCC may be a 12V DC power supply, the first power supply module 130 can convert 12V DC power to 5V DC power, the first charging standard is the Chinese or European charging standard, and the second charging standard is the American or Japanese charging standard.

[0028] Specifically, in the Chinese or European charging standard, the main control module 140 uses a 12V pull-up power supply to collect guidance signals, while in the American or Japanese charging standard, the main control module 140 needs to use a 5V pull-up power supply to collect guidance signals. According to the charging circuit board 100 of the embodiment of the present invention, by replacing the device in the reserved area, sampling of slow charging guidance signals for two types of regional standards, China / Europe and the US / Japan, can be achieved, reducing development, testing, and management costs.

[0029] Specifically, if the charging standard is the Chinese or European charging standard, a second resistor R2 can be provided in the first reserved area, and the resistance value of the second resistor R2 may be 0Ω, and no devices are provided in the second and third reserved areas. When the charging gun is connected, the level of the charging connection confirmation terminal 150 changes, and the changed level signal is transmitted to the wake-up module 110 via the second resistor R2. The wake-up module 110 generates a wake-up signal and outputs the wake-up signal to the enable terminal of the first power supply module 130. The first power supply module 130 converts the 12V DC power output from the preset power supply VCC to 5V DC power and supplies power to the main control module 140, which wakes up the main control module 140. The main control module 140 obtains a voltage signal by sampling via the sampling module 120 to obtain the connection status of the charging connection confirmation terminal 150. Furthermore, the insertion status of the charging gun and the power capacity of the charging gun can be obtained, and a charging handshake function can be realized.

[0030] If the charging standard is the American or Japanese charging standard, a wake-up switch module 160 can be provided in the second reserved area, and a third resistor R3 can be provided in the third reserved area, the resistance value of the third resistor R3 may be 330Ω, and no device is provided in the first reserved area. When a charging gun is connected, the level of the charging connection confirmation terminal 150 changes, and the changed level signal is transmitted to the wake-up module 110 via the wake-up switch module 160 to generate a wake-up signal, which is output to the enable terminal of the first power supply module 130. The first power supply module 130 converts the 12V DC power output from the preset power supply VCC to 5V DC power and supplies power to the wake-up switch module 160, the third resistor R3, and the main control module 140, respectively. At this time, the wake-up switch module 160 is shut off, and the main control module 140 is woken up. The main control module 140 obtains a voltage signal by sampling via the sampling module 120 to obtain the connection status of the charging connection confirmation terminal 150, combines this with a 5V voltage, and further obtains the insertion status of the charging gun and the power capacity of the charging gun, thereby realizing a charging handshake function.

[0031] In some embodiments of the present invention, as shown in Figure 1, the charging connection confirmation terminal 150 includes a fourth resistor R4, one end of which is grounded and the other end of which is connected to a second resistor R2. When a charging gun is inserted, the fourth resistor R4 is connected, and when the charging gun is removed, the fourth resistor R4 is disconnected, i.e., the resistance value at the position of the fourth resistor R4 becomes infinite. When the charging standard is the Chinese or European charging standard, the resistance value of the fourth resistor R4 includes 3.3kΩ, 1.5kΩ, 680Ω, 220Ω, 100Ω, etc., and when the charging standard is the American or Japanese charging standard, the resistance value of the fourth resistor R4 includes 2.7kΩ, 480Ω, 150Ω, etc., and the different resistance values ​​represent the insertion state of the charging gun and the power capacity of the charging gun.

[0032] According to one embodiment of the present invention, as shown in Figure 2, the wake-up module 110 includes a wake-up level conversion circuit 111 and a trigger circuit 112. The wake-up level conversion circuit 111 is connected to the other end of a second resistor R2 and to a wake-up switch module 160, respectively. In a first charging standard, the wake-up level conversion circuit 111 outputs an edge signal based on the level received from the charging connection confirmation terminal 150 via the second resistor R2. In a second charging standard, the wake-up level conversion circuit 111 outputs an edge signal based on the level received from the charging connection confirmation terminal 150 via the wake-up switch module 160. The trigger circuit 112 is connected to the wake-up level conversion circuit 111 and to the enable terminal of the first power supply module 130, respectively. The trigger circuit 112 generates a wake-up signal based on the edge signal.

[0033] Specifically, when the charging gun is connected, the charging connection confirmation terminal 150 divides the voltage with the first resistor R1, changing the level of the charging connection confirmation terminal 150. The wake-up level conversion circuit 111 converts this level signal into a jump signal with a rising edge and transmits it to the trigger circuit 112. When the trigger circuit 112 receives this jump signal with a rising edge, it latches the output signal at a high level. Similarly, when the charging gun is unplugged, a jump signal with a falling edge is generated, and the wake-up level conversion circuit 111 outputs the edge signal to the trigger circuit 112. The trigger circuit 112 latches the output signal at a high level to generate a wake-up signal. In the first charging standard, the level signal is transmitted to the wake-up level conversion circuit 111 via the second resistor R2. In the second charging standard, the level signal is transmitted to the wake-up level conversion circuit 111 via the wake-up switch module 160. This enables wake-up by "inserting the charging gun" and "unplugging the charging gun".

[0034] According to one embodiment of the present invention, as shown in Figure 2, the wake-up module 110 further includes a trigger clear circuit 113, which is connected to a main control module 140 and a trigger circuit 112, respectively. The main control module 140 outputs a clear enable signal to the trigger clear circuit 113 when sleep is required. The trigger clear circuit 113 generates a trigger clear signal based on the clear enable signal. The trigger circuit 112 generates a sleep signal at the enable terminal of the first power supply module 130 based on the trigger clear signal. The first power supply module 130 stops supplying power to the main control module 140 in a first charging standard and stops supplying power to the wake-up switch module 160, the main control module 140, and the third resistor R3 in a second charging standard.

[0035] Specifically, to meet the requirement for low power consumption throughout the vehicle, the main control module 140 allows the vehicle to enter sleep mode even when there is a charging gun connection signal after the vehicle is fully charged. When sleep mode is required, the main control module 140 outputs a clear enable signal to the trigger clear circuit 113, the trigger clear circuit 113 generates a trigger clear signal and transmits it to the trigger circuit 112, the trigger circuit 112 generates a sleep signal and transmits it to the enable terminal of the first power module 130, and by preventing the first power module 130 from converting 12V DC power to 5V DC power, the first power module 130 stops supplying power to the main control module 140 in the first charging standard, and stops supplying power to the wake-up switch module 160, the main control module 140, and the third resistor R3 in the second charging standard, thereby stopping the output of the wake-up signal, and allowing the vehicle to enter sleep mode even when there is a charging gun connection signal after the vehicle is fully charged.

[0036] According to one embodiment of the present invention, as shown in Figure 2, the charging circuit board 100 further includes a sampling switch module 170, which is connected between the charging connection confirmation terminal 150 and the input terminal of the sampling module 120, and the power supply terminal of the sampling switch module 170 is connected to the second output terminal of the first power supply module 130, and the first power supply module 130 supplies power to the sampling switch module 170 based on a wake-up signal to make the sampling switch module 170 conduct, and stops supplying power to the sampling switch module 170 based on a sleep signal to make the sampling switch module 170 shut off.

[0037] Specifically, when a charging gun is connected, the level of the charging connection confirmation terminal 150 changes, and the wake-up module 110 outputs a wake-up signal to the enable terminal of the first power supply module 130. The first power supply module 130 converts the 12V DC power output from the preset power supply VCC to 5V DC power, supplies power to the sampling switch module 170 via the second output terminal, and turns on the sampling switch module 170, thus making the entire sampling path conductive. When the system goes to sleep, a sleep signal is transmitted to the enable terminal of the first power supply module 130, stopping the high-level output from the first and second output terminals of the first power supply module 130. That is, the first power supply module 130 stops supplying power to the sampling switch module 170, turning off the sampling switch module 170, thereby further reducing static power consumption.

[0038] According to one embodiment of the present invention, as shown in Figure 2, the charging circuit board 100 further includes a second power supply module 180, the input terminal of the second power supply module 180 is connected to a preset power supply VCC, and the output terminal of the second power supply module 180 is connected to a wake-up module 110 to supply power to the wake-up module 110. Here, the second power supply module 180 may be an LDO, which can convert the 12V voltage output from the preset power supply VCC to a 5V voltage, and can continue to supply power to the wake-up module 110 during sleep mode.

[0039] According to one embodiment of the present invention, as shown in Figure 3, the wake-up switch module 160 includes a first switch S1 and a second switch S2, the first end of the first switch S1 being connected to the charge connection confirmation terminal 150, the second end of the first switch S1 being connected to the wake-up module 110, the first end of the second switch S2 being connected to the control terminal of the first switch S1, the control terminal of the first switch S1 being further connected to the preset power supply VCC, the second end of the second switch S2 being grounded, and the control terminal of the second switch S2 being connected to the first output terminal of the first power supply module 130. The first switch S1 and the second switch S2 may be N-type MOS transistors or NPN-type transistors.

[0040] Specifically, as shown in Figure 3, in the second charging standard, if the charging gun is not connected, that is, if the fourth resistor R4 is not connected to the circuit, the control terminal (gate) of the first switch S1 is pulled up to the voltage of the preset power supply VCC, and the first terminal (drain) of the first switch S1 is suspended, and no path is formed. When the charging gun is connected, the fourth resistor R4 is connected to the circuit, the second terminal of the first switch S1 is pulled down by the fourth resistor R4, the level of the charging connection confirmation terminal 150 changes, the wake-up module 110 outputs a wake-up signal to the enable terminal of the first power supply module 130, the first power supply module 130 converts the 12V DC power output from the preset power supply VCC to 5V DC power, and supplies power to the control terminal of the second switch S2, the third resistor R3, and the main control module 140 respectively, thereby conducting the second switch S2. This shorts the control terminal of the first switch S1 to ground via the second switch S2, causing the first switch S1 to shut off and the charging connection confirmation terminal 150 to disconnect from the wake-up module 110. This ensures that, if the system supports American or Japanese standards, the system is woken up by the charging gun, and after being woken up, the 12V voltage of the pulled-up preset power supply VCC is cut off, and the sampling module 120 is pulled up by a 5V voltage. If the charging gun is not unplugged and the vehicle is in sleep mode, the first output terminal of the first power module 130 no longer supplies power to the control terminal of the second switch S2, the second switch S2 is cut off, the first switch S1 is in a conductive state, and thus the wake-up switch module 160 is in a conductive state in sleep mode.

[0041] According to one embodiment of the present invention, as shown in Figure 3, the wake-up level conversion circuit 111 includes a third switch S3, the first terminal of the third switch S3 is connected to a preset power supply VCC, the second terminal of the third switch S3 is connected to a trigger circuit 112, and the control terminal of the third switch S3 is connected to one terminal of the first resistor R1, the other terminal of the second resistor R2, and the wake-up switch module 160, respectively. The third switch S3 may be a PNP type transistor.

[0042] According to one embodiment of the present invention, as shown in Figure 3, the trigger circuit 112 includes a trigger 1121, the first input terminal of the trigger 1121 is connected to the wake-up level conversion circuit 111, and the output terminal of the trigger 1121 is connected to the enable terminal of the first power supply module 130.

[0043] Specifically, as shown in Figure 3, when the charging gun is connected, the fourth resistor R4 is connected to the circuit and divides the voltage with the first resistor R1, causing the voltage at the control terminal (base) of the third switch S3 to decrease, the third switch S3 conducts, the preset power supply VCC transmits voltage to the first input terminal of the trigger 1121 via the third switch S3, the first input terminal of the trigger 1121 generates a rising edge signal, the output terminal of the trigger 1121 outputs and holds a high level, the high level signal is transmitted to the enable terminal of the first power supply module 130, the first power supply module 130 wakes up, the first power supply module 130 converts the voltage of the preset power supply VCC and supplies power to devices such as the main control module 140. When the charging gun is unplugged, the fourth resistor R4 is disconnected from the circuit, the voltage at the control terminal (base) of the third switch S3 increases, the third switch S3 is disconnected, the first input terminal of the trigger 1121 generates a falling edge signal, the output terminal of the trigger 1121 outputs and holds a high level, the high level signal is transmitted to the enable terminal of the first power supply module 130, the first power supply module 130 wakes up, the first power supply module 130 converts the voltage of the preset power supply VCC and supplies power to devices such as the main control module 140.

[0044] According to one embodiment of the present invention, as shown in Figure 3, the trigger clear circuit 113 includes a fourth switch S4, the first terminal of the fourth switch S4 is connected to the second input terminal of the trigger 1121, the second terminal of the fourth switch S4 is grounded, and the control terminal of the fourth switch S4 is connected to the main control module 140. The fourth switch S4 may be an N-type MOS transistor or a P-type MOS transistor.

[0045] Specifically, as shown in Figure 3, if the fourth switch S4 is an N-type MOS transistor, when sleep is required, the main control module 140 outputs a high-level signal to the control terminal of the fourth switch S4, causing the fourth switch S4 to conduct. This lowers the voltage at the second input terminal of the trigger 1121, clearing the high level at the output terminal of the trigger 1121. The first power supply module 130 then stops converting 12V DC power to 5V DC power, stopping the power supply to devices such as the main control module 140. The wake-up source is canceled, and the system goes to sleep. Similarly, if the fourth switch S4 is a P-type MOS transistor, the main control module 140 may output a low-level signal to the control terminal of the fourth switch S4.

[0046] Note that trigger 1121 may be a D trigger, or other types of triggers or trigger circuits, such as an RS trigger, may be used. If trigger 1121 is a D trigger, the first input terminal of trigger 1121 is the CP pin, the output terminal of trigger 1121 is the Q pin, and the second input terminal of trigger 1121 is the MR pin.

[0047] According to one embodiment of the present invention, as shown in Figure 3, the sampling switch module 170 includes a fifth switch S5, the first end of the fifth switch S5 is connected to the charging connection confirmation terminal 150, the second end of the fifth switch S5 is connected to the sampling module 120, and the control end of the fifth switch S5 is connected to the second output terminal of the first power supply module 130. The fifth switch S5 may be an N-type MOS transistor.

[0048] Specifically, when a charging gun is connected and the system is woken up, the second output terminal of the first power module 130 outputs a high-level signal, for example, a voltage of 12V, to the control terminal of the fifth switch S5, causing the fifth switch S5 to conduct, and the sampling module 120 is connected to the charging connection confirmation terminal 150 to sample the signal from the charging gun. When the system is asleep, the second output terminal of the first power module 130 stops outputting a high-level signal, the fifth switch S5 is shut off, and the sampling module 120 and the charging connection confirmation terminal 150 are shut off, thereby preventing leakage of the preset power supply VCC to ground and further reducing the static power consumption of the system.

[0049] In Figures 1 to 3, the enable terminal of the first power supply module 130 is indicated by EN, the first output terminal of the first power supply module 130 is indicated by 130_1, and the second output terminal of the first power supply module 130 is indicated by 130_2.

[0050] As described above, according to the charging circuit board of the embodiment of the present invention, in the first charging standard, a second resistor is provided in the first reserved area, the wake-up module outputs a wake-up signal to the enable terminal of the first power supply module based on the level received from the charging connection confirmation terminal via the second resistor, the first power supply module supplies power to the main control module based on the wake-up signal to wake up the main control module, the main control module obtains the connection state of the charging connection confirmation terminal by sampling via the sampling module, and in the second charging standard, a wake-up switch module is provided in the second reserved area, and a third resistor is provided in the third reserved area. Furthermore, the wake-up switch module is conductive in the sleep state, and the wake-up module outputs a wake-up signal to the enable terminal of the first power supply module based on the level received from the charging connection confirmation terminal via the wake-up switch module. The first power supply module supplies power to the wake-up switch module based on the wake-up signal to shut off the wake-up switch module, supplies power to the main control module to wake up the main control module, and supplies power to the third resistor. The main control module samples via the sampling module to obtain the connection state of the charging connection confirmation terminal. As a result, the charging circuit board can achieve sampling of two types of regional standard slow-speed charging guidance signals, Central Europe and the US / Japan, by replacing devices in the reserved area, thereby reducing development and testing costs and component management costs.

[0051] In accordance with the above embodiments, the present invention further provides a vehicle.

[0052] Figure 4 is a schematic block diagram of a vehicle according to an embodiment of the present invention.

[0053] As shown in Figure 4, the vehicle 200 of the embodiment of the present invention includes the above-mentioned charging circuit board 100.

[0054] According to the vehicle of the embodiment of the present invention, the above-mentioned charging circuit board can reduce development and testing costs, and can also reduce parts management costs.

[0055] The logic and / or steps shown in a flowchart or otherwise described may be, for example, an ordered list of executable instructions for realizing a logical function, which may be embodied in any computer-readable medium and used by or in combination with instruction execution systems, apparatuses or devices (e.g., computer-based systems, systems including processors, or other systems capable of reading and executing instructions from instruction execution systems, apparatuses or devices). In this specification, “computer-readable medium” may be a device that contains, stores, communicates, transmits or transmits a program for use with an instruction execution system, apparatus or device, or is used in combination with such instruction execution systems, apparatuses or devices. More specific examples of computer-readable mediums (a non-exclusive list) include electrical connections with one or more wires (electronic devices), portable computer disk cartridges (magnetic devices), random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), fiber optic devices, and compact disk read-only memory (CDROM). Furthermore, the computer-readable medium may be paper or other suitable medium on which the program can be printed, for example, because the program can be obtained electrically by optically scanning the paper or other medium, then editing, decoding, or processing it by other suitable methods as needed, and storing it in computer memory.

[0056] Each part of the present invention may be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, a plurality of steps or methods may be implemented by software or firmware stored in memory and executed by an appropriate instruction execution system. For example, when implemented by hardware, as in another embodiment, it may be implemented by one or a combination thereof of techniques well known in the art, such as discrete logic circuits having logic gate circuits for realizing logic functions for data signals, application-specific integrated circuits having appropriate combinational logic gate circuits, programmable gate arrays (PGAs), and field-programmable gate arrays (FPGAs).

[0057] In this specification, any description using terms such as “one embodiment,” “several embodiments,” “example,” “specific example,” or “several examples” means that the specific features, structures, materials, or properties described in such embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the general expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or properties described may be combined in an appropriate manner in any one or more embodiments or examples.

[0058] Furthermore, the terms "first" and "second" are merely for descriptive purposes and should not be understood as indicating or implying relative importance, or implicitly indicating the number of designated technical features. Therefore, the "first" and "second" features may explicitly or implicitly include at least one such feature. In the description of this invention, "multiple" means at least two, for example, two, three, etc., unless otherwise specified.

[0059] In the present invention, unless otherwise specified, terms such as "attachment," "connection," "bonding," and "fixing" should be understood in a broad sense. For example, a fixed connection may be a detachable connection, or it may be an integral connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection via an intermediate medium. Unless otherwise specified, it may also refer to internal communication between two elements or an interaction relationship between two elements. Those skilled in the art will be able to understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0060] Although the above examples have been described, these examples are illustrative and do not limit the present invention. Those skilled in the art can modify, alter, substitute, and transform the above examples within the scope of the present invention.

Claims

1. A charging circuit board including a first reserved area, a first resistor, a second reserved area, a wake-up module, a third reserved area, a sampling module, a first power supply module, and a main control module, The first reserved region is suitable for providing a second resistor, one end of the second resistor is connected to the charging connection confirmation terminal, the other end of the second resistor is connected to one end of the first resistor and the input terminal of the wake-up module, and the other end of the first resistor is connected to the preset power supply. The second reserved area is suitable for providing a wake-up switch module, and the wake-up switch module is connected in parallel with the second resistor. The third reserved region is suitable for providing a third resistor, one end of the third resistor is connected to the charging connection confirmation terminal and the input terminal of the sampling module, respectively, and the output terminal of the sampling module is connected to the main control module. The enable terminal of the first power supply module is connected to the output terminal of the wake-up module, the input terminal of the first power supply module is connected to the preset power supply, and the first output terminal of the first power supply module is connected to the wake-up switch module, the other terminal of the third resistor, and the main control module, respectively. In the first charging standard, the second resistor is provided in the first reserved area, the wake-up module outputs a wake-up signal to the enable terminal of the first power supply module based on the level received from the charging connection confirmation terminal via the second resistor, the first power supply module supplies power to the main control module based on the wake-up signal to wake up the main control module, the main control module obtains the connection state of the charging connection confirmation terminal by sampling via the sampling module. In the second charging standard, the wake-up switch module is provided in the second reserved area, the third resistor is provided in the third reserved area, and the wake-up switch module is conductive in the sleep state. The wake-up module outputs a wake-up signal to the enable terminal of the first power supply module based on the level received from the charging connection confirmation terminal via the wake-up switch module. The first power supply module supplies power to the wake-up switch module based on the wake-up signal to shut off the wake-up switch module, supplies power to the main control module to wake up the main control module, supplies power to the third resistor, and the main control module obtains the connection state of the charging connection confirmation terminal by sampling via the sampling module. Charging circuit board.

2. The wake-up module includes a wake-up level conversion circuit and a trigger circuit. The wake-up level conversion circuit is connected to the other end of the second resistor and to the wake-up switch module, respectively. In the first charging standard, the wake-up level conversion circuit outputs an edge signal based on the level received from the charging connection confirmation terminal via the second resistor. In the second charging standard, the wake-up level conversion circuit outputs an edge signal based on the level received from the charging connection confirmation terminal via the wake-up switch module. The trigger circuit is connected to the wake-up level conversion circuit and the enable terminal of the first power supply module, respectively, and the trigger circuit generates the wake-up signal based on the edge signal. The charging circuit board according to claim 1.

3. The wake-up module further includes a trigger clear circuit, The trigger clear circuit is connected to the main control module and the trigger circuit, respectively. The main control module outputs a clear enable signal to the trigger clear circuit when sleep is required, the trigger clear circuit generates a trigger clear signal based on the clear enable signal, the trigger circuit generates a sleep signal at the enable terminal of the first power supply module based on the trigger clear signal, the first power supply module stops supplying power to the main control module in the first charging standard and stops supplying power to the wake-up switch module, the main control module and the third resistor in the second charging standard. The charging circuit board according to claim 2.

4. Further includes a sampling switch module, The sampling switch module is connected between the charging connection confirmation terminal and the input terminal of the sampling module, and the power supply terminal of the sampling switch module is connected to the second output terminal of the first power supply module. The first power supply module supplies power to the sampling switch module based on the wake-up signal to make the sampling switch module conductive, and stops supplying power to the sampling switch module based on the sleep signal to make the sampling switch module shut off. The charging circuit board according to claim 3.

5. Further including a second power supply module, The input terminal of the second power supply module is connected to the preset power supply, and the output terminal of the second power supply module is connected to the wake-up module to supply power to the wake-up module. The charging circuit board according to claim 4.

6. The wake-up switch module includes a first switch and a second switch, the first end of the first switch being connected to the charging connection confirmation terminal, the second end of the first switch being connected to the wake-up module, the first end of the second switch being connected to the control terminal of the first switch, the control terminal of the first switch being further connected to the preset power supply, the second end of the second switch being grounded, and the control terminal of the second switch being connected to the first output terminal of the first power supply module. A charging circuit board according to any one of claims 1 to 5.

7. The wake-up level conversion circuit includes a third switch, the first end of which is connected to the preset power supply, the second end of which is connected to the trigger circuit, and the control end of which is connected to one end of the first resistor, the other end of the second resistor, and the wake-up switch module, respectively. A charging circuit board according to any one of claims 2 to 5.

8. The trigger circuit includes a trigger, the first input terminal of the trigger being connected to the wake-up level conversion circuit, and the output terminal of the trigger being connected to the enable terminal of the first power supply module. A charging circuit board according to any one of claims 3 to 5.

9. The trigger clear circuit includes a fourth switch, the first terminal of the fourth switch is connected to the second input terminal of the trigger, the second terminal of the fourth switch is grounded, and the control terminal of the fourth switch is connected to the main control module. The charging circuit board according to claim 8.

10. The sampling switch module includes a fifth switch, the first end of the fifth switch is connected to the charging connection confirmation terminal, the second end of the fifth switch is connected to the sampling module, and the control end of the fifth switch is connected to the second output terminal of the first power supply module. The charging circuit board according to claim 4.

11. A vehicle comprising a charging circuit board according to any one of claims 1 to 10.

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