阅读说明：本技术 一种evcc自动唤醒电路及方法 (EVCC automatic wake-up circuit and method ) 是由 马松全 于 2019-09-12 设计创作，主要内容包括：本申请公开了一种EVCC自动唤醒电路及方法,能够满足自动智能充放电的需求,减少人力耗费。所述电路包括：运算放大器的同相输入端通过并联充电枪电阻和充电枪插座电阻接地；反相器的输入级与运算放大器的输出端相连接,用于获取运算放大器的输出电压,并通过输出级输出高电平和/或产生上升沿；触发器的时钟脉冲CLK管脚与反相器的输出级相连接,用于检测反相器的输出级输出的高电平和/或产生的上升沿,触发器的输出管脚与车辆EVCC的电源芯片SBC相连接,在充电枪插入车辆的充电枪插座后,当触发器的时钟脉冲CLK管脚检测到反相器的输出级输出的高电平和/或产生的上升沿时,触发器通过输出管脚输出高电平和/或产生上升沿,用以自动唤醒EVCC的电源芯片SBC。(The application discloses an EVCC automatic wake-up circuit and method, which can meet the requirements of automatic intelligent charging and discharging and reduce labor consumption. The circuit comprises: the non-inverting input end of the operational amplifier is grounded through a parallel charging gun resistor and a charging gun socket resistor; the input stage of the inverter is connected with the output end of the operational amplifier and is used for acquiring the output voltage of the operational amplifier and outputting a high level and/or generating a rising edge through the output stage; the clock pulse CLK pin of the trigger is connected with the output stage of the inverter and used for detecting the high level and/or the generated rising edge output by the output stage of the inverter, the output pin of the trigger is connected with the power chip SBC of the vehicle EVCC, and after the charging gun is inserted into a charging gun socket of the vehicle, when the clock pulse CLK pin of the trigger detects the high level and/or the generated rising edge output by the output stage of the inverter, the trigger outputs the high level and/or generates the rising edge through the output pin so as to automatically wake up the power chip SBC of the EVCC.)

1. an EVCC automatic wake-up circuit is applied to automatic wake-up of a vehicle EVCC, and comprises: operational amplifier, inverter and flip-flop:

when a charging gun is inserted into a charging gun socket of a vehicle, the non-inverting input end of the operational amplifier is grounded by connecting the charging gun resistor and the charging gun socket resistor in parallel;

the input stage of the inverter is connected with the output end of the operational amplifier and is used for acquiring the output voltage of the operational amplifier and outputting a high level and/or generating a rising edge through the output stage;

The clock pulse CLK pin of the trigger is connected with the output stage of the inverter and is used for detecting the high level and/or the generated rising edge output by the output stage of the inverter;

The output pin of the trigger is connected with a power chip SBC of the vehicle EVCC;

When the clock pulse CLK pin of the flip-flop detects a high level and/or a generated rising edge output by the output stage of the inverter, the flip-flop outputs a high level and/or generates a rising edge through the output pin so as to automatically wake up the power chip SBC of the vehicle EVCC.

2. The circuit of claim 1, further comprising: resetting the chip;

The working voltage input pin of the reset chip is connected with the output end of the operational amplifier, and the output pin of the reset chip is connected with the input stage of the phase inverter;

The reset chip is used for reducing the output voltage of the operational amplifier to a preset range, and the reduced voltage is input to the input stage of the inverter.

3. The circuit of claim 1, further comprising: a first resistor;

one end of the first resistor is connected with the inverting input end of the operational amplifier, and the other end of the first resistor is connected with the ground.

4. the circuit of claim 3, further comprising: a second resistor;

One end of the second resistor is connected with the output end of the operational amplifier, and the other end of the second resistor is connected with the input end of the first resistor.

5. The circuit of any of claims 1-4, wherein the charging gun resistance is less than or equal to 1.5 kq when the vehicle is being charged by the charging gun.

6. The EVCC automatic awakening method is applied to an EVCC automatic awakening circuit and is used for automatically awakening the EVCC of a vehicle, and the circuit comprises: an operational amplifier, an inverter and a flip-flop;

the non-inverting input end of the operational amplifier is grounded through a parallel charging gun resistor and a charging gun socket resistor;

the input stage of the inverter is connected with the output end of the operational amplifier and is used for acquiring the output voltage of the operational amplifier and outputting a high level and/or generating a rising edge through the output stage;

The clock pulse CLK pin of the trigger is connected with the output stage of the inverter and is used for detecting the high level and/or the generated rising edge output by the output stage of the inverter;

the output pin of the trigger is connected with a power chip SBC of the vehicle EVCC;

the EVCC automatic awakening method comprises the following steps: when a charging gun is plugged into a charging gun socket of a vehicle, when a clock pulse CLK pin of the trigger detects a high level output by an output stage of the inverter and/or a generated rising edge, the trigger outputs the high level and/or generates the rising edge through the output pin so as to automatically wake up a power supply chip SBC of the vehicle EVCC.

7. the method of claim 6, wherein the circuit further comprises: resetting the chip;

the working voltage input pin of the reset chip is connected with the output end of the operational amplifier, and the output pin of the reset chip is connected with the input stage of the phase inverter;

the reset chip is used for reducing the output voltage of the operational amplifier to a preset range, and the reduced voltage is input to the input stage of the inverter.

8. The method of claim 6, wherein the circuit further comprises: a first resistor;

one end of the first resistor is connected with the inverting input end of the operational amplifier, and the other end of the first resistor is connected with the ground.

9. The method of claim 8, wherein the circuit further comprises: a second resistor;

One end of the second resistor is connected with the output end of the operational amplifier, and the other end of the second resistor is connected with the input end of the first resistor.

10. The method of any of claims 6-9, wherein the charging gun resistance is less than or equal to 1.5k Ω when the vehicle is being charged by the charging gun.

Technical Field

The application relates to the technical field of electric automobiles, in particular to an EVCC automatic wake-up circuit and method.

background

in recent years, with the increasing energy crisis, electric vehicles have become the development focus of the future automobile industry due to their excellent energy-saving and environmental-friendly characteristics. The electric automobile is a vehicle which takes a vehicle-mounted power supply as power and drives wheels by a motor, not only meets various requirements in road traffic regulations and safety regulations, but also can reduce the consumption of non-renewable resources, namely petroleum.

For the current Electric Vehicle, the Vehicle-mounted battery of the Vehicle itself can be charged by connecting the charging gun, or the Electric Vehicle itself can be used as a power supply to charge other vehicles by connecting the charging gun, but no matter charging or discharging, after the charging gun is connected, an Electric Vehicle Communication Controller (EVCC) of the Electric Vehicle needs to be awakened manually to control the Vehicle to charge or discharge, but the method for awakening the EVCC manually to charge and discharge the Vehicle cannot meet the requirement of automatic intelligent charging and discharging, and increases the labor consumption. Therefore, there is a lack in the prior art of ways to automatically wake up an EVCC.

Disclosure of Invention

In view of this, embodiments of the present application provide an EVCC automatic wake-up circuit and method to solve the technical problem in the prior art that the EVCC cannot be automatically woken up quickly.

in order to solve the above problem, the technical solution provided by the embodiment of the present application is as follows:

In a first aspect, an embodiment of the present application provides an EVCC automatic wake-up circuit, which is applied to automatically wake up an EVCC of a vehicle, where the circuit includes: operational amplifier, inverter and flip-flop:

When a charging gun is inserted into a charging gun socket of a vehicle, the non-inverting input end of the operational amplifier is grounded by connecting the charging gun resistor and the charging gun socket resistor in parallel;

The input stage of the inverter is connected with the output end of the operational amplifier and is used for acquiring the output voltage of the operational amplifier and outputting a high level and/or generating a rising edge through the output stage;

The clock pulse CLK pin of the trigger is connected with the output stage of the inverter and is used for detecting the high level and/or the generated rising edge output by the output stage of the inverter;

the output pin of the trigger is connected with a power chip SBC of the vehicle EVCC;

when the clock pulse CLK pin of the flip-flop detects a high level and/or a generated rising edge output by the output stage of the inverter, the flip-flop outputs a high level and/or generates a rising edge through the output pin so as to automatically wake up the power chip SBC of the vehicle EVCC.

Optionally, the circuit further includes: resetting the chip;

The working voltage input pin of the reset chip is connected with the output end of the operational amplifier, and the output pin of the reset chip is connected with the input stage of the phase inverter;

The reset chip is used for reducing the output voltage of the operational amplifier to a preset range, and the reduced voltage is input to the input stage of the inverter.

optionally, the circuit further includes: a first resistor;

one end of the first resistor is connected with the inverting input end of the operational amplifier, and the other end of the first resistor is connected with the ground.

Optionally, the circuit further includes: a second resistor;

One end of the second resistor is connected with the output end of the operational amplifier, and the other end of the second resistor is connected with the input end of the first resistor.

optionally, when the vehicle is charged by the charging gun, the resistance of the charging gun is less than or equal to 1.5k Ω.

in a second aspect, the present application provides an EVCC automatic wake-up method, including:

the circuit is applied to an EVCC automatic wake-up circuit and automatically wakes up the EVCC of a vehicle, and the circuit comprises: an operational amplifier, an inverter and a flip-flop;

the non-inverting input end of the operational amplifier is grounded through a parallel charging gun resistor and a charging gun socket resistor;

the input stage of the inverter is connected with the output end of the operational amplifier and is used for acquiring the output voltage of the operational amplifier and outputting a high level and/or generating a rising edge through the output stage;

The clock pulse CLK pin of the trigger is connected with the output stage of the inverter and is used for detecting the high level and/or the generated rising edge output by the output stage of the inverter;

the output pin of the trigger is connected with a power chip SBC of the vehicle EVCC;

the EVCC automatic awakening method comprises the following steps: when a charging gun is plugged into a charging gun socket of a vehicle, when a clock pulse CLK pin of the trigger detects a high level output by an output stage of the inverter and/or a generated rising edge, the trigger outputs the high level and/or generates the rising edge through the output pin so as to automatically wake up a power supply chip SBC of the vehicle EVCC.

Optionally, the battery performance parameters include a temperature rise and an average temperature of the target battery in the preset time period, a historical driving mileage and a historical usage time of the target battery before the preset time period, and an initial SOC and a final SOC of the target battery at a start time point and an end time point of the preset time period.

Optionally, the circuit further includes: resetting the chip;

The working voltage input pin of the reset chip is connected with the output end of the operational amplifier, and the output pin of the reset chip is connected with the input stage of the phase inverter;

The reset chip is used for reducing the output voltage of the operational amplifier to a preset range, and the reduced voltage is input to the input stage of the inverter.

optionally, the circuit further includes: a second resistor;

One end of the second resistor is connected with the output end of the operational amplifier, and the other end of the second resistor is connected with the input end of the first resistor.

Optionally, when the vehicle is charged by the charging gun, the resistance of the charging gun is less than or equal to 1.5k Ω.

The EVCC automatic wake-up circuit and the method provided by the embodiment of the application are applied to automatic wake-up of the vehicle EVCC, wherein the wake-up circuit comprises: the non-inverting input end of the operational amplifier is grounded through a parallel charging gun resistor and a charging gun socket resistor; the input stage of the inverter is connected with the output end of the operational amplifier and is used for acquiring the output voltage of the operational amplifier and outputting a high level and/or generating a rising edge through the output stage; the clock pulse CLK pin of the flip-flop is connected with the output stage of the inverter and is used for detecting the high level and/or the generated rising edge output by the output stage of the inverter, and the output pin of the flip-flop is connected with the power chip SBC of the vehicle EVCC, so that after the charging gun is plugged into a charging gun socket of the vehicle, when the clock pulse CLK pin of the flip-flop detects the high level and/or the generated rising edge output by the output stage of the inverter, the flip-flop outputs the high level and/or generates the rising edge through the output pin, and the power chip SBC of the vehicle EVCC is automatically awakened. Therefore, the pre-constructed wake-up circuit is utilized, the EVCC is automatically woken up after the charging gun is inserted into the charging gun socket of the vehicle, manual wake-up is not needed manually, the requirement for automatic intelligent charging can be met, and consumption of manpower is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a circuit structure diagram of an EVCC automatic wake-up circuit provided in an embodiment of the present application;

Fig. 2 is a schematic flowchart of an EVCC automatic wake-up method according to an embodiment of the present disclosure.

Detailed Description

At present, in the process of charging or discharging of an electric automobile, after a charging gun is connected to a vehicle-mounted charging gun socket, an EVCC (event charging control) needs to be manually awakened by a worker to control the vehicle to be charged or discharged, but the EVCC is artificially awakened to carry out charging and discharging, so that the requirement of automatic intelligent charging and discharging cannot be met, and the consumption of manpower is increased.

In order to solve the above-mentioned defects, an embodiment of the present application provides an EVCC automatic wake-up circuit, in which a non-inverting input terminal of an operational amplifier is grounded through a parallel connection charging gun resistor and a charging gun socket resistor; the input stage of the inverter is connected with the output end of the operational amplifier and is used for acquiring the output voltage of the operational amplifier and outputting a high level and/or generating a rising edge through the output stage; the clock pulse CLK pin of the flip-flop is connected to the output stage of the inverter for detecting a high level and/or a generated rising edge output by the output stage of the inverter, and the output pin of the flip-flop is connected to the power chip SBC of the vehicle EVCC.

Therefore, after the charging gun is inserted into a charging gun socket of a vehicle, when the clock pulse CLK pin of the trigger in the wake-up circuit detects the high level output by the output stage of the inverter and/or the generated rising edge, the trigger outputs the high level and/or generates the rising edge through the output pin to automatically wake up the power chip SBC of the EVCC connected with the trigger.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

First embodiment

the EVCC automatic wake-up circuit shown in the exemplary embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, a circuit structure diagram of an EVCC automatic wake-up circuit provided in an embodiment of the present application is shown.

the EVCC automatic wake-up circuit provided by the embodiment of the application is applied to automatic wake-up of a vehicle EVCC, and as shown in FIG. 1, the EVCC automatic wake-up circuit provided by the embodiment of the application comprises an operational amplifier 101, an inverter 102 and a trigger 103.

when the charging gun is inserted into a vehicle-mounted charging gun socket of a vehicle for charging and discharging, the non-inverting input terminal of the operational amplifier 101 is grounded through the parallel charging gun resistor and the charging gun socket resistor, and is used for acquiring the voltage at 3 in fig. 1.

In this embodiment, an alternative implementation is that when the vehicle is charged by the charging gun, the resistance of the charging gun (PP resistance R527 shown in fig. 1) should be less than or equal to 1.5k Ω. For example: when the resistance (PP resistance R527 shown in fig. 1) is 1.5k Ω, the power voltage is 5v, and the resistance of the gun holder of the charging gun (resistance R124 shown in fig. 1) is 2.7k Ω, the voltage at point 1 in fig. 1 is reduced by about 80mv after the power is switched into the circuit of fig. 1 through the resistance of 120k Ω (resistance R123 shown in fig. 1) and the charging gun is inserted into the gun holder of the charging gun.

When the vehicle is discharged by the charging gun, the resistance of the charging gun (PP resistance R527 shown in fig. 1) can be set according to the actual situation, for example: when the resistance (PP resistance R527 shown in fig. 1) is 2k Ω, the power supply voltage is 5v, and the charging gun holder resistance (resistance R124 shown in fig. 1) is still 2.7k Ω, the voltage at point 1 in fig. 1 can be reduced by about 50mv after the power supply is switched into the designated position of the circuit shown in fig. 1 through the 120k Ω resistance (resistance R123 shown in fig. 1) and the charging gun is inserted into the charging gun holder.

It should be noted that, in the following description of the present application, the resistance of the charging gun (the PP resistor R527 shown in fig. 1) is 2k Ω, the power supply voltage is 5v, and the gun holder resistance of the charging gun (the resistor R124 shown in fig. 1) is 2.7k Ω, and it is understood that this value is merely an example, and the present application does not limit the specific value of the resistance of the charging gun (but when a vehicle is charged by the charging gun, the resistance of the charging gun should be less than or equal to 1.5k Ω), which may be 2k Ω mentioned in the embodiments of the present application, or may be other values.

after the voltage at 1 in fig. 1 is obtained, the operational amplifier 101 may amplify the voltage so that the voltage at the output end (at 2 in fig. 1) is reduced by about 3v (i.e., from 5.2v to 2.2 v).

In the present embodiment, the input stage of the inverter 102 is connected to the output terminal of the operational amplifier 101, and is used for obtaining the output voltage of the operational amplifier (at point 3 in fig. 1) and outputting a high level and/or generating a rising edge through the output stage (at point 4 in fig. 1);

The selection of the inverter 102 can be determined according to the output voltage of the operational amplifier 101 and the predetermined range of the input value of the inverter specified in the inverter chip manual.

In the present embodiment, the clock pulse CLK pin of the flip-flop 103 is connected to the output stage of the inverter 102, and is used for detecting whether the output stage of the inverter outputs a high level and/or generates a rising edge; and the output pin 5 of the flip-flop 103 is connected to the power supply chip SBC of the vehicle EVCC (not shown in fig. 1).

based on this, when the clock pulse CLK pin of the flip-flop 103 detects that the output stage of the inverter 102 outputs a high level and/or generates a rising edge, the output pin 5 of the flip-flop 103 outputs a high level and/or generates a rising edge, so that the power supply chip SBC of the vehicle EVCC connected thereto is automatically woken up by the high level and/or the rising edge, and thus the vehicle EVCC is automatically woken up.

The type of the flip-flop 103 may be selected according to actual conditions, which is not limited in this application, for example, a D-type flip-flop may be selected.

To sum up, in the EVCC automatic wake-up circuit provided in the embodiment of the present application, the non-inverting input terminal of the operational amplifier is grounded through the parallel connection of the charging gun resistor and the charging gun socket resistor; the input stage of the inverter is connected with the output end of the operational amplifier and is used for acquiring the output voltage of the operational amplifier and outputting a high level and/or generating a rising edge through the output stage; the clock pulse CLK pin of the flip-flop is connected with the output stage of the inverter and is used for detecting the high level and/or the generated rising edge output by the output stage of the inverter, and the output pin of the flip-flop is connected with the power chip SBC of the vehicle EVCC, so that after the charging gun is plugged into a charging gun socket of the vehicle, when the clock pulse CLK pin of the flip-flop detects the high level and/or the generated rising edge output by the output stage of the inverter, the flip-flop outputs the high level and/or generates the rising edge through the output pin, and the power chip SBC of the vehicle EVCC is automatically awakened. Therefore, the pre-constructed wake-up circuit is utilized, the EVCC is automatically woken up after the charging gun is inserted into the charging gun socket of the vehicle, manual wake-up is not needed manually, the requirement for automatic intelligent charging can be met, and consumption of manpower is reduced.

Second embodiment

The components and functions of the EVCC automatic wake-up circuit are described in the above embodiments, and specific functional implementations of the above circuits will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, the EVCC automatic wake-up circuit provided in the embodiment of the present application may further include a reset chip 104, a first resistor 105, and a second resistor 106, which are shown in a dashed box in fig. 1, in addition to the operational amplifier 101, the inverter 102, and the flip-flop 103.

the function of the operational amplifier 101 is the same as that described in the first embodiment, and is not described herein again.

In some possible implementations of the present application, one end of the first resistor 105 is connected to the inverting input terminal of the operational amplifier 101, and the other end of the first resistor 105 is connected to ground.

As shown in fig. 1, an optional implementation manner is that the value of the first resistor 105 (i.e., the resistor R126 shown in fig. 1) may be 10k Ω, but a specific value of the first resistor 105 may be selected according to an actual situation, which is not limited in this application.

in some possible implementations of the present application, one end of the second resistor 106 is connected to the output terminal of the operational amplifier 102, and the other end of the second resistor 106 is connected to the input terminal of the first resistor 105.

as shown in fig. 1, an optional implementation manner is that the value of the second resistor 105 (i.e., the resistor R127 shown in fig. 1) may be 470k Ω, but a specific value of the second resistor 106 may be selected according to an actual situation, which is not limited in this application.

In some possible implementations of the present application, the operating voltage input pin (VDD shown in fig. 1) of the reset chip 104 is connected to the output terminal of the operational amplifier 101, and the output pin (OUT shown in fig. 1) of the reset chip 104 is connected to the input stage of the inverter 102; the output voltage of the operational amplifier is reduced to a preset range, and the reduced voltage is input to the input stage of the inverter.

In this implementation, the output voltage of the operational amplifier 101 is generally about 2.2v, the currently commonly used input value of the inverter is generally in a range close to 0 v-1 v, if the output terminal of the operational amplifier 101 in the wake-up circuit is directly connected to the input terminal of the inverter, it is likely that the input terminal of the inverter cannot detect the voltage output by the output terminal of the operational amplifier 101, because the 2.2v voltage output by the operational amplifier 101 is higher than 1v, at this time, a reset chip 104 may be connected between the output terminal of the operational amplifier 101 and the input terminal of the reset chip 104 (VDD shown in fig. 1), and the output terminal of the reset chip 104 (OUT shown in fig. 1) is connected to the input stage of the inverter 102. In this way, the reset chip 104 can reduce the output voltage 2.2v of the operational amplifier 101 by about 0v (at this time, the power supply voltage of the inverter is 5v), and the reduced voltage is input to the input stage of the inverter, reaching the predetermined range to which the input value of the inverter 102 belongs.

According to the scheme of the embodiment, the phase inverter can more accurately detect the output voltage of the operational amplifier, the clock pulse CLK pin of the trigger can be effectively ensured to accurately detect the high level output by the output stage of the phase inverter and/or the generated rising edge, the high level output by the output stage of the phase inverter and/or the generated rising edge are output through the output pin, and the automatic awakening of the power chip SBC in the vehicle EVCC is realized, namely, the automatic awakening of the EVCC is realized, manual awakening is not needed, so that the requirement for automatic intelligent charging can be met, and the consumption of manpower is reduced.

Third embodiment

the present embodiment provides an EVCC automatic wake-up method, and the method provided in the present embodiment will be described below with reference to the accompanying drawings.

referring to fig. 2, the figure is a flowchart of an EVCC automatic wake-up method provided in an embodiment of the present invention, where the method is applied to an EVCC automatic wake-up circuit to automatically wake up a vehicle EVCC, and the wake-up circuit includes: operational amplifiers, inverters, and flip-flops.

the non-inverting input end of the operational amplifier is grounded through a parallel charging gun resistor and a charging gun socket resistor;

The input stage of the inverter is connected with the output end of the operational amplifier and is used for acquiring the output voltage of the operational amplifier and outputting a high level and/or generating a rising edge through the output stage;

the clock pulse CLK pin of the trigger is connected with the output stage of the inverter and is used for detecting the high level and/or the generated rising edge output by the output stage of the inverter;

The output pin of the trigger is connected with a power chip SBC of the vehicle EVCC;

The method provided by the embodiment comprises the following steps:

s201: when the clock pulse CLK pin of the flip-flop detects a high level and/or a generated rising edge output by the output stage of the inverter after the charging gun is inserted into the charging gun socket of the vehicle, the flip-flop outputs the high level and/or generates the rising edge through the output pin so as to automatically wake up the power supply chip SBC of the vehicle EVCC.

In some possible implementations of the present application, the wake-up circuit further includes: resetting the chip;

The working voltage input pin of the reset chip is connected with the output end of the operational amplifier, and the output pin of the reset chip is connected with the input stage of the phase inverter;

the reset chip is used for reducing the output voltage of the operational amplifier to a preset range, and the reduced voltage is input to the input stage of the inverter.

In some possible implementations of the present application, the wake-up circuit further includes: a first resistor;

one end of the first resistor is connected with the inverting input end of the operational amplifier, and the other end of the first resistor is connected with the ground.

in some possible implementations of the present application, the wake-up circuit further includes: a second resistor;

One end of the second resistor is connected with the output end of the operational amplifier, and the other end of the second resistor is connected with the input end of the first resistor.

In some possible implementations of the present disclosure, the charging gun resistance is less than or equal to 1.5 when the vehicle is being charged by the charging gun.

it should be noted that the method of this embodiment may be applied to the EVCC automatic wake-up circuit shown in fig. 1 to automatically wake up the vehicle EVCC, which is not described herein again.

By the method provided by the embodiment of the invention, after a charging gun is inserted into a charging gun socket of a vehicle, the non-inverting input end of an operational amplifier is grounded through a parallel charging gun resistor and the charging gun socket resistor to obtain the voltage at two ends of the charging gun resistor (or the charging gun holder resistor), the input end of an inverter is connected with the output end of the operational amplifier and is used for obtaining the output voltage of the operational amplifier and outputting a high level and/or generating a rising edge through an output stage, the clock pulse CLK pin of a trigger is connected with the output stage of the inverter and is used for detecting the high level and/or the generated rising edge output by the output stage of the inverter, the output pin of the trigger is connected with a power supply chip SBC of the vehicle EVCC, so that when the clock pulse CLK pin of the trigger detects the high level and/or the generated rising edge output by the output stage of the inverter, the flip-flop may output a high level and/or generate a rising edge through the output pin to automatically wake up the power chip SBC of the vehicle EVCC. Therefore, the pre-constructed wake-up circuit is utilized, the EVCC is automatically woken up after the charging gun is inserted into the charging gun socket of the vehicle, manual wake-up is not needed manually, the requirement for automatic intelligent charging can be met, and consumption of manpower is reduced.

As can be seen from the above description of the embodiments, those skilled in the art can clearly understand that all or part of the steps in the above embodiment methods can be implemented by software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present application may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network communication device such as a media gateway, etc.) to execute the method according to the embodiments or some parts of the embodiments of the present application.

It should be noted that, in the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

the previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.