Control method of a detection system, detection system, electronic device, vehicle and computer program product

Abstract

The application discloses a control method of a detection system, a detection system, an electronic device, a vehicle and a computer program product. It relates to the technical field of charging detection, and the control method comprises the following steps: determining the type of a thermistor arranged in a charging gun according to an environmental temperature, the resistance value of the detection circuit and a preset acquisition voltage range, the type of the thermistor corresponds to the detection branch in a one-to-one manner; determining the resistance value of the thermistor according to the type of the thermistor and the detection branch; and controlling the charging gun to operate according to the type of the thermistor and the resistance value of the thermistor. The application can collect the temperature of various types of charging guns, and has high compatibility.

Description

Technical Field

[0001] This application relates to the field of charging detection technology, and more specifically, to a control method for a detection system, a detection system, an electronic device, a vehicle, and a computer program product. Background Technology

[0002] During the charging process of an electric vehicle, the vehicle controller needs to monitor the temperature of the charging gun in real time. When the temperature of the charging gun is detected to be too high, the vehicle controller needs to stop the power output of the charging gun. Currently, the vehicle controller typically determines the temperature of the charging gun by monitoring the resistance change of the thermistor inside the charging gun, and then determines whether charging can proceed based on the temperature. However, different types of charging guns have different types of thermistors built in, which means that electric vehicles on the market can usually only monitor the temperature of a single type of charging gun, resulting in poor compatibility. Summary of the Invention

[0003] This application provides a control method for a detection system, a detection system, an electronic device, a vehicle, and a computer program product to at least solve the problem that commercially available electric vehicles can only collect temperature data from a single type of charging gun, resulting in poor compatibility.

[0004] In the control method of the detection system according to the embodiments of this application, the detection system includes a detection circuit, the detection circuit includes different detection branches, and the control method includes: determining the type of thermistor configured in the charging gun according to the ambient temperature, the resistance value of the detection circuit and a preset acquisition voltage range, wherein the type of thermistor corresponds one-to-one with the detection branch; determining the resistance value of the thermistor according to the type of thermistor and the detection branch; and controlling the operation of the charging gun according to the type of thermistor and the resistance value of the thermistor.

[0005] In some embodiments, the detection branch includes a first detection branch and a second detection branch, the thermistor includes a first thermistor and a second thermistor, and the preset acquisition voltage range includes a first voltage range and a second voltage range, where the first voltage range corresponds to the first thermistor and the second voltage range corresponds to the second thermistor. Determining the type of thermistor configured in the charging gun based on the ambient temperature, the resistance value of the detection circuit, and the preset acquisition voltage range includes: determining a first acquisition voltage value based on the ambient temperature and the resistance value of the first detection branch; determining whether the thermistor configured in the charging gun is the first thermistor based on the first acquisition voltage value and the first voltage range; if the thermistor configured in the charging gun is not the first thermistor, determining a second acquisition voltage value based on the ambient temperature and the resistance value of the second detection branch; and determining whether the thermistor configured in the charging gun is the second thermistor based on the second acquisition voltage value and the second voltage range.

[0006] In some embodiments, the detection circuit further includes an operational amplifier circuit. The first detection branch is provided with a first resistor, and the operational amplifier circuit is provided with an operational amplifier. Determining the first acquisition voltage value based on the ambient temperature and the resistance value of the first detection branch includes: determining the minimum and maximum resistance values ​​of the first thermistor based on the ambient temperature and a first correspondence; determining the minimum and maximum non-inverting input voltage values ​​of the operational amplifier based on the resistance values ​​of the first resistor, the minimum and maximum resistance values ​​of the first thermistor; and determining the first acquisition voltage value of the operational amplifier circuit based on the minimum and maximum non-inverting input voltage values ​​of the operational amplifier, the reference voltage at the inverting input of the operational amplifier, and the amplification gain of the operational amplifier.

[0007] In some embodiments, the operational amplifier circuit further includes a third resistor, a fourth resistor, a fifth resistor, and a sixth resistor. Determining the first sampled voltage value of the operational amplifier circuit based on the minimum value of the non-inverting input voltage, the maximum value of the non-inverting input voltage, the reference voltage of the inverting input, and the amplification gain of the operational amplifier includes: determining the reference voltage of the inverting input based on the resistance values ​​of the third and fourth resistors; determining the amplification gain of the operational amplifier based on the resistance values ​​of the fifth and sixth resistors; determining the output voltage of the operational amplifier based on the minimum value of the non-inverting input voltage, the maximum value of the non-inverting input voltage, the reference voltage of the inverting input, and the amplification gain; and determining the first sampled voltage value of the operational amplifier circuit based on the output voltage.

[0008] In some embodiments, the operational amplifier circuit is further provided with a voltage divider resistor, and determining the first sampled voltage value of the operational amplifier circuit based on the output voltage of the operational amplifier includes: determining the first sampled voltage value of the operational amplifier circuit based on the output voltage of the operational amplifier and the resistance value of the voltage divider resistor.

[0009] In some embodiments, determining whether the thermistor configured inside the charging gun is the first thermistor based on the first acquired voltage value and the first voltage range includes: determining that the thermistor configured inside the charging gun is the first thermistor when both the maximum and minimum values ​​of the first acquired voltage value are within the first voltage range; and determining that the thermistor configured inside the charging gun is not the first thermistor when the maximum or minimum value of the first acquired voltage value is not within the first voltage range.

[0010] In some embodiments, the detection circuit further includes an operational amplifier circuit. The second detection branch is provided with a second resistor, and the operational amplifier circuit is provided with an operational amplifier. Determining the second acquisition voltage value based on the ambient temperature and the resistance value of the second detection branch includes: determining the minimum and maximum resistance values ​​of the second thermistor based on the ambient temperature and the second correspondence; determining the minimum and maximum non-inverting input voltage values ​​of the operational amplifier based on the resistance values ​​of the second resistor, the minimum and maximum resistance values ​​of the second thermistor; and determining the second acquisition voltage value of the operational amplifier circuit based on the minimum and maximum non-inverting input voltage values ​​of the operational amplifier, the reference voltage at the inverting input of the operational amplifier, and the amplification gain of the operational amplifier.

[0011] In some embodiments, determining whether the thermistor configured inside the charging gun is the second thermistor based on the second acquired voltage value and the second voltage range includes: determining that the thermistor configured inside the charging gun is the second thermistor when both the maximum and minimum values ​​of the second acquired voltage value are within the second voltage range; and determining that the thermistor configured inside the charging gun is not the second thermistor when the maximum or minimum value of the second acquired voltage value is not within the second voltage range.

[0012] In some embodiments, the control method further includes sending a temperature warning message when the thermistor configured in the charging gun is not the first thermistor and the thermistor configured in the charging gun is not the second thermistor.

[0013] In some embodiments, the detection branch includes a first detection branch, a second detection branch, and an operational amplifier circuit. The thermistor includes a first thermistor and a second thermistor. The operational amplifier circuit is provided with an operational amplifier. Determining the resistance value of the thermistor based on its type and the detection branch includes: when the thermistor is a first thermistor, acquiring a first actual voltage at the non-inverting input of the operational amplifier through the first detection branch and the operational amplifier circuit; determining the resistance value of the first thermistor based on the first actual voltage; when the thermistor is a second thermistor, acquiring a second actual voltage at the non-inverting input of the operational amplifier through the second detection branch and the operational amplifier circuit; and determining the resistance value of the second thermistor based on the second actual voltage.

[0014] This application also provides a detection system, which includes a controller, a detection circuit, and an ambient temperature acquisition circuit. The detection circuit and the ambient temperature acquisition circuit are both connected to the controller. The detection circuit includes different detection branches. The controller is used to implement the control method described in any of the above embodiments.

[0015] In some embodiments, the detection branch includes a first detection branch and a second detection branch, both of which are connected to the controller. The first detection branch is used to detect a first thermistor, and the second detection branch is used to detect a second thermistor.

[0016] This application also provides an electronic device including a memory and a processor, the memory being configured to store a computer program, and the processor, when executing the computer program, implementing the control method described in any of the above embodiments.

[0017] This application also provides a vehicle that includes the detection system described in any of the foregoing embodiments, or that includes the electronic device described in any of the foregoing embodiments.

[0018] This application also provides a computer program product having a computer program stored thereon, which, when executed by a processor, implements the control method described in any of the above embodiments.

[0019] The control method, detection system, electronic device, vehicle, and computer program product provided in this application determine the type of thermistor configured in the charging gun by considering ambient temperature, the resistance value of the detection circuit, and a preset acquisition voltage range. Since the type of thermistor corresponds one-to-one with the detection branch, and the detection circuit includes different detection branches, the detection branch corresponding to that type of thermistor can be determined based on its type. The resistance value of the thermistor is then determined through the detection branch, and the operation of the charging gun is controlled based on the type and resistance value of the thermistor. The control method provided in this application can acquire temperature data from charging guns with different types of built-in thermistors, exhibiting high compatibility.

[0020] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0022] Figure 1This is a flowchart illustrating the control method of the detection system according to some embodiments of this application;

[0023] Figure 2 This is a schematic diagram of the structure of the control device of the detection system according to some embodiments of this application;

[0024] Figure 3 This is a circuit diagram of a detection system according to some embodiments of this application;

[0025] Figure 4 This is a flowchart illustrating the process of determining the type of thermistor configured inside the charging gun based on ambient temperature, the resistance value of the detection circuit, and a preset acquisition voltage range in the control method of the detection system of some embodiments of this application.

[0026] Figure 5 This is a flowchart illustrating the process of determining the first acquisition voltage value based on the ambient temperature and the resistance value of the first detection branch in the control method of the detection system of some embodiments of this application.

[0027] Figure 6 This is a flowchart illustrating the process of determining the first acquisition voltage value of the operational amplifier circuit based on the minimum value of the voltage at the non-inverting input terminal of the operational amplifier, the maximum value of the voltage at the non-inverting input terminal of the operational amplifier, the reference voltage at the inverting input terminal of the operational amplifier, and the amplification gain of the operational amplifier in the control method of the detection system of some embodiments of this application.

[0028] Figure 7 This is a flowchart illustrating the process of determining the first acquisition voltage value of the operational amplifier circuit based on the output voltage of the operational amplifier in the control method of the detection system of some embodiments of this application.

[0029] Figure 8 This is a flowchart illustrating the process of determining a second acquisition voltage value based on ambient temperature and the resistance value of a second detection branch in the control method of the detection system of some embodiments of this application, when the thermistor configured in the charging gun is not the first thermistor.

[0030] Figure 9 This is a flowchart illustrating the process of determining the resistance value of a thermistor based on its type and detection circuit in the control method of the detection system according to some embodiments of this application.

[0031] Figure 10 This is a schematic diagram of the power manager according to some embodiments of this application;

[0032] Figure 11 This is a structural schematic diagram of a vehicle according to some embodiments of this application;

[0033] Figure 12This is a schematic diagram illustrating the connection state of a computer-readable storage medium and a processor according to some embodiments of this application.

[0034] Explanation of key component markings:

[0035] 100 vehicles;

[0036] Detection system 10;

[0037] Controller 11; Detection circuit 12; First detection branch 121; Second detection branch 122; Analog switch 123; Ambient temperature acquisition circuit 13; Operational amplifier circuit 14; Operational amplifier 141; Power manager 15; Power supply module 151; Fault handling module 152; Timing module 153;

[0038] Processor 20;

[0039] Computer program product 200; Computer program 202;

[0040] Electronic device 30. Detailed Implementation

[0041] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting the embodiments of this application.

[0042] During electric vehicle charging, real-time monitoring of the charging gun's temperature by the vehicle controller is crucial. The charging gun is a key component of the charging system; excessively high temperatures can damage internal components and lead to safety hazards. Therefore, the vehicle controller needs to monitor the charging gun's temperature regularly to ensure it operates within a safe temperature range, thus guaranteeing a smooth charging process. Currently, vehicle controllers typically determine the charging gun's temperature by monitoring the resistance change of an internal thermistor. A thermistor is a component whose resistance changes with temperature, making it ideal for temperature detection. During charging, as the internal temperature of the charging gun changes, the thermistor's resistance also changes. The vehicle controller can calculate the actual temperature of the charging gun by monitoring this resistance change. However, different types of charging guns may use different types of thermistors. For example, some charging guns use negative temperature coefficient (NTC) thermistors, while others may use positive temperature coefficient (PTC) thermistors. These different types of thermistors differ in resistance change characteristics and response speed. Therefore, the vehicle controller needs to design different signal acquisition and processing methods for different types of thermistors to ensure accurate monitoring of the charging gun's temperature. Currently, most electric vehicles on the market only support temperature detection for a single type of charging gun. If users need to use different types of charging guns, they may need to replace the vehicle controller or make complex system adjustments, which not only increases operating costs but also reduces the convenience of vehicle use. Therefore, improving the compatibility of vehicle controllers to enable them to acquire temperature data from charging guns with different types of built-in thermistors has become a pressing problem for those skilled in the art. To address this issue, this application provides a control method for a detection system (such as...). Figure 1 As shown), detection system (such as) Figure 3 As shown), electronic device 30 (such as Figure 11 As shown), vehicle 100 (e.g.) Figure 11 (as shown) and computer program products 200 (such as Figure 12 (As shown).

[0043] Please see Figure 1 , Figure 2 as well as Figure 3 In the control method of the detection system according to the embodiments of this application, the detection system 10 includes a detection circuit 12, the detection circuit 12 includes different detection branches 121 / 122, and the control method includes:

[0044] 03: Based on the ambient temperature, the resistance value of the detection circuit 12, and the preset acquisition voltage range, determine the type of thermistor configured in the charging gun. The type of thermistor corresponds one-to-one with the detection branch.

[0045] 05: Determine the resistance value of the thermistor based on its type and detection circuit;

[0046] 07: Control the operation of the charging gun according to the type and resistance value of the thermistor.

[0047] The control method of the above-mentioned detection system can be applied to the control device of the detection system. The control device of the detection system in this application includes a first determining module, a second determining module, and a control module. The first determining module is used to determine the type of thermistor configured in the charging gun based on the ambient temperature, the resistance value of the detection circuit, and a preset acquisition voltage range. The type of thermistor corresponds one-to-one with the detection branch. The second determining module is used to determine the resistance value of the thermistor based on its type and the detection branch. The control module is used to control the operation of the charging gun based on the type and resistance value of the thermistor.

[0048] Specifically, the control device of the detection system is one of the core devices of the vehicle. In electric vehicles, the control device of the detection system is an intelligent decision-making device for detecting the temperature of the electric vehicle charging gun. The control device of the detection system can automatically identify the type of thermistor and control the start of the vehicle charging process by collaboratively analyzing the ambient temperature, circuit parameters and other preset conditions set by the operator.

[0049] More specifically, the control device of the detection system includes a first determining module, a second determining module, and a control module. The first determining module executes method 03, the second determining module executes method 05, and the control module executes method 07. The first determining module determines the physical type of the thermistor inside the charging gun (e.g., distinguishing between positive and negative temperature coefficient thermistors) based on the real-time ambient temperature, the actual resistance signal of the detection circuit 12, and a preset voltage acquisition range (e.g., an adjustable range of 0-5V) through preset logical judgments (this process will be explained in detail below). The second determining module selects a matching dedicated detection branch based on the thermistor type output by the first determining module, converts and calculates the voltage / current signal acquired by that branch, and obtains the accurate real-time resistance value of the thermistor. The control module synchronously receives the thermistor type output by the first determining module and the real-time resistance value of the thermistor determined by the second determining module, and converts the thermistor's resistance value into an actual temperature value based on the temperature-resistance relationship curve of that type of thermistor. When the temperature exceeds the threshold (which can be set by the operator), a shutdown command for the charging gun is triggered and the power output state is switched to prevent the charging gun from overheating and causing a safety accident.

[0050] Furthermore, please combine Figure 3The detection system 10 includes a controller 11, a detection circuit 12, and an ambient temperature acquisition circuit 13. The detection circuit 12 includes multiple different detection branches, to... Figure 3 For example, the detection circuit includes a first detection branch 121 and a second detection branch 122. For instance, the first detection branch 121 can be used to detect a first thermistor (positive temperature coefficient thermistor), and the second detection branch 122 can be used to detect a second thermistor (negative temperature coefficient thermistor). When the charging gun is inserted, the ambient temperature acquisition circuit 13 can collect the system temperature as the ambient temperature through the controller 11. The analog switch 123 can be used to control the connection and disconnection of the first detection branch 121 and the second detection branch 122 according to the pin level of the controller 11. In this application, different detection branches correspond to different types of thermistors, thereby improving the compatibility of the controller 11 in detecting the charging gun temperature. This process will be explained in more detail below.

[0051] It is understood that in the control method of the detection system provided in this application, the type of thermistor configured in the charging gun is determined by the ambient temperature, the resistance value of the detection circuit 12, and the preset acquisition voltage range. Since the type of thermistor corresponds one-to-one with the detection branch, and the detection circuit includes different detection branches, the detection branch corresponding to this type of thermistor can be determined according to the type of thermistor. Then, the resistance value of the thermistor is determined through the detection branch, and the operation of the charging gun is controlled according to the type and resistance value of the thermistor. The control method provided in this application can acquire the temperature of charging guns with different types of built-in thermistors, and has high compatibility.

[0052] In some implementations, please refer to Figure 2 , Figure 3 and Figure 4 The detection branch 12 includes a first detection branch 121 and a second detection branch 122. The thermistor includes a first thermistor and a second thermistor. The preset acquisition voltage range includes a first voltage range and a second voltage range. The first voltage range corresponds to the first thermistor, and the second voltage range corresponds to the second thermistor. 03: Based on the ambient temperature, the resistance value of the detection circuit, and the preset acquisition voltage range, the type of thermistor configured in the charging gun is determined, including:

[0053] 031: Determine the first acquisition voltage value based on the ambient temperature and the resistance value of the first detection branch;

[0054] 033: Based on the first collected voltage value and the first voltage range, determine whether the thermistor configured inside the charging gun is the first thermistor;

[0055] 035: If the thermistor configured in the charging gun is not the first thermistor, the second acquisition voltage value is determined based on the ambient temperature and the resistance value of the second detection branch.

[0056] 037: Based on the second collected voltage value and the second voltage range, determine whether the thermistor configured inside the charging gun is the second thermistor.

[0057] The control method of the above-mentioned detection system can be applied to the control device of the detection system. The first determining module is used to determine a first acquisition voltage value based on the ambient temperature and the resistance value of the first detection branch; determine whether the thermistor configured in the charging gun is a first thermistor based on the first acquisition voltage value and a first voltage range; if the thermistor configured in the charging gun is not a first thermistor, determine a second acquisition voltage value based on the ambient temperature and the resistance value of the second detection branch; and determine whether the thermistor configured in the charging gun is a second thermistor based on the second acquisition voltage value and the second voltage range.

[0058] Specifically, in method 031, the detection system 10 uses the currently detected system temperature as ambient temperature data. When the charging gun is inserted into the charging port to wake up the controller, the system temperature can reflect the actual temperature of the surrounding air where the charging gun is located. At the same time, the detection system 10 first assumes that the type of thermistor in the charging gun is a first thermistor. The detection system 10 will collect the resistance value on the first detection branch 121 in real time from the hardware circuit. This resistance value reflects the change in the physical characteristics of the sensor inside the charging gun. Then, the detection system 10 will perform a specific calculation process to comprehensively process the ambient temperature data and the real-time resistance value of the first detection branch (this process will be explained in more detail below) and finally obtain the first acquisition voltage value. The first acquisition voltage value theoretically represents the voltage signal level that should be presented when the first thermistor is connected to the circuit.

[0059] Specifically, in method 033, the first sampled voltage value calculated in the previous step is compared and verified with a preset first voltage range (which can be set by the operator). The first voltage range matches the voltage output variation pattern of the first thermistor during operation. For example, the specific comparison method is to check whether the first sampled voltage value is between the minimum and maximum values ​​of the first voltage range. If the first sampled voltage value is exactly within this range, it indicates that the characteristics of the currently connected sensor fully match the expected behavior pattern of the first thermistor, and the detection system 10 can immediately make a clear determination to confirm that the charging gun is equipped with the first thermistor. However, if the voltage value does not fall within the first voltage range, whether it is lower than the minimum or higher than the maximum value, it is an abnormal situation. At this time, the detection system 10 will automatically exclude the possibility of the first thermistor and prepare to execute the subsequent process.

[0060] Specifically, in methods 035 and 037, when the conclusion of method 033 confirms that the thermistor installed in the charging gun is not the first thermistor, the detection system 10 switches the detection branch, switching the detection branch from the first detection branch 121 to the second detection branch 122 (this process will be explained in detail below). Following the previous detection process, the second acquisition voltage value is determined by the ambient temperature and the resistance value of the second detection branch. Then, based on the second acquisition voltage value and the second voltage range (which can be set by the operator, and the second voltage range matches the voltage output change pattern when the second thermistor is working), it is determined whether the thermistor configured in the charging gun is the second thermistor. The principle of this process is similar to the determination of whether it is the first thermistor, and will not be repeated here.

[0061] In some implementations, please refer to Figure 2 , Figure 3 and Figure 5 The detection circuit also includes an operational amplifier circuit 14. A first resistor R1 is provided in the first detection branch, and an operational amplifier 141 is provided in the operational amplifier circuit 14. 031: Based on the ambient temperature and the resistance value of the first detection branch, the first acquisition voltage value is determined, including:

[0062] 0311: Based on the ambient temperature and the first correspondence, determine the minimum and maximum resistance values ​​of the first thermistor;

[0063] 0313: Based on the resistance value of the first resistor R1, the minimum resistance value of the first thermistor, and the maximum resistance value of the first thermistor, determine the minimum value and the maximum value of the voltage at the non-inverting input terminal of the operational amplifier 141.

[0064] 0315: Determine the first acquisition voltage value of the operational amplifier circuit 14 based on the minimum value of the voltage at the non-inverting input terminal of the operational amplifier 141, the maximum value of the voltage at the non-inverting input terminal of the operational amplifier 141, the reference voltage at the inverting input terminal of the operational amplifier 141, and the amplification gain of the operational amplifier 141.

[0065] The control method of the above detection system can be applied to the control device of the detection system. The first determining module is used to determine the minimum and maximum resistance values ​​of the first thermistor based on the ambient temperature and the first correspondence; to determine the minimum and maximum voltage values ​​of the non-inverting input terminal of the operational amplifier 141 based on the resistance value of the first resistor R1, the minimum and maximum resistance values ​​of the first thermistor; and to determine the first acquisition voltage value of the operational amplifier circuit 14 based on the minimum and maximum voltage values ​​of the non-inverting input terminal of the operational amplifier 141, the reference voltage of the inverting input terminal of the operational amplifier 141, and the amplification gain of the operational amplifier 141.

[0066] Specifically, in method 0311, the detection system 10 needs to use the known ambient temperature parameters and the correspondence between the resistance value of the first thermistor and the temperature to determine the lower limit value of the minimum resistance value that the first thermistor may have at the current temperature, and the upper limit value of the maximum resistance value that the first thermistor may have at the current temperature. These two extreme parameters together constitute the theoretical resistance fluctuation range of the first thermistor under the current temperature conditions.

[0067] Specifically, in method 0313, the hardware circuit characteristics are converted and calculated based on the resistance range obtained in method 0311. Figure 3 For example, at the non-inverting input of operational amplifier 141, the voltage is divided by the thermistor of the charging gun connected to the circuit and the first resistor R1 in the first detection branch. The voltage at the non-inverting input of operational amplifier 141 is 5V * thermistor resistance value / (thermistor resistance value + first resistor R1 resistance value). By taking the temperature-resistance relationship of the first thermistor, the minimum and maximum resistance values ​​of the first thermistor under the current ambient temperature can be obtained. Figure 3 The circuit shown obtains the minimum and maximum values ​​of the voltage at the non-inverting input terminal of operational amplifier 141. In method 0315, the detection system 10 performs comprehensive calculations based on the acquired voltage range parameters and the hardware settings of operational amplifier 141. The first sampled voltage value of operational amplifier circuit 14 is determined according to the minimum and maximum values ​​of the voltage at the non-inverting input terminal of operational amplifier 141, the reference voltage at the inverting input terminal of operational amplifier 141, and the amplification gain of operational amplifier 141.

[0068] In some implementations, please refer to Figure 2 , Figure 3 and Figure 6The operational amplifier circuit 14 is further provided with a third resistor R3, a fourth resistor R4, a fifth resistor R5, and a sixth resistor R6. 0315: Based on the minimum value of the voltage at the non-inverting input terminal of the operational amplifier 141, the maximum value of the voltage at the non-inverting input terminal of the operational amplifier 141, the reference voltage at the inverting input terminal of the operational amplifier 141, and the amplification gain of the operational amplifier 141, the first sampled voltage value of the operational amplifier circuit 14 is determined, including:

[0069] 03151: Determine the reference voltage at the inverting input terminal of operational amplifier 141 based on the resistance values ​​of the third resistor R3 and the fourth resistor R4.

[0070] 03153: Determine the amplification gain of operational amplifier 141 based on the resistance values ​​of the fifth resistor R5 and the sixth resistor R6.

[0071] 03155: Determine the output voltage of operational amplifier 141 based on the minimum value of the voltage at the non-inverting input terminal of operational amplifier 141, the maximum value of the voltage at the non-inverting input terminal of operational amplifier 141, the reference voltage at the inverting input terminal of operational amplifier 141, and the amplification gain of operational amplifier 141.

[0072] 03157: Determine the first acquisition voltage value of the operational amplifier circuit 14 based on the output voltage of the operational amplifier 141.

[0073] The control method of the above detection system can be applied to the control device of the detection system. The first determining module is used to determine the reference voltage of the inverting input terminal of the operational amplifier 141 based on the resistance values ​​of the third resistor R3 and the fourth resistor R4; to determine the amplification gain of the operational amplifier 141 based on the resistance values ​​of the fifth resistor R5 and the sixth resistor R6; to determine the output voltage of the operational amplifier 141 based on the minimum value of the voltage at the non-inverting input terminal of the operational amplifier 141, the maximum value of the voltage at the non-inverting input terminal of the operational amplifier 141, the reference voltage at the inverting input terminal of the operational amplifier 141, and the amplification gain of the operational amplifier 141; and to determine the first acquisition voltage value of the operational amplifier circuit 14 based on the output voltage of the operational amplifier 141.

[0074] Specifically, please combine Figure 3 At the inverting input of operational amplifier 141, the third resistor R3 and the fourth resistor R4 together form a bias circuit to provide a reference voltage to the inverting input of operational amplifier 141. The reference voltage at the inverting input of operational amplifier 141 is 5V * the resistance value of the third resistor R3 / (the resistance value of the third resistor R3 + the resistance value of the fourth resistor R4).

[0075] Specifically, please combine Figure 3The amplification gain of operational amplifier 141 is the ratio of the sixth resistor R6 to the fifth resistor R5. The output voltage of operational amplifier 141 is (voltage at the non-inverting input of operational amplifier 141 - reference voltage at the inverting input of operational amplifier 141) * amplification gain. In the above formula, the voltage at the non-inverting input of operational amplifier 141 is calculated by taking the minimum and maximum values ​​of the voltage at the non-inverting input, respectively, to obtain the lower and upper limits of the output voltage of operational amplifier 141. The output voltage of operational amplifier 141 is divided by voltage divider resistors R9 / R10 and acquired through the ADC2 port of the controller to obtain the first acquired voltage value. If the value of the first acquired voltage is within the first voltage range, it is determined that the charging gun is equipped with the first thermistor.

[0076] In some implementations, please refer to Figure 2 and Figure 7 The operational amplifier circuit 14 is also equipped with voltage divider resistors R9 / R10. 03157: Based on the output voltage of the operational amplifier 141, the first sampled voltage value of the operational amplifier circuit 14 is determined, including:

[0077] 031571: Determine the first acquisition voltage value of the operational amplifier circuit 14 based on the output voltage of the operational amplifier 141 and the resistance values ​​of the voltage divider resistors R9 / R10.

[0078] The control method of the above detection system can be applied to the control device of the detection system. The first determining module is used to determine the first acquisition voltage value of the operational amplifier circuit 14 based on the output voltage of the operational amplifier 141 and the resistance values ​​of the voltage divider resistors R9 / R10.

[0079] Understandably, in order to ensure that the output voltage of the operational amplifier is within the range of the acquisition voltage of the controller 11, the output of the operational amplifier 141 is equipped with voltage divider resistors R9 / R10.

[0080] Please see Figure 2 and Figure 3 In some embodiments, 033: determining whether the thermistor configured inside the charging gun is a first thermistor based on the first collected voltage value and the first voltage range includes:

[0081] 0331: When both the maximum and minimum values ​​of the first collected voltage are within the first voltage range, the thermistor configured inside the charging gun is determined to be the first thermistor;

[0082] 0333: If the maximum or minimum value of the first collected voltage is not within the first voltage range, it is determined that the thermistor configured in the charging gun is not the first thermistor.

[0083] The control method of the above detection system can be applied to the control device of the detection system. The first determining module is used to determine that the thermistor configured in the charging gun is the first thermistor when both the maximum and minimum values ​​of the first collected voltage value are within the first voltage range; and to determine that the thermistor configured in the charging gun is not the first thermistor when the maximum or minimum value of the first collected voltage value is not within the first voltage range.

[0084] Specifically, in method 0331, the detection system 10 performs a verification operation based on the first acquired voltage value. Specifically, it simultaneously checks the maximum and minimum values ​​of the first acquired voltage value. The minimum value of the first acquired voltage value must be greater than or equal to the minimum value of the first voltage range, and the maximum value of the first acquired voltage value must be less than or equal to the maximum value of the first voltage range. Both conditions must be met simultaneously to determine that the thermistor actually installed in the charging gun is of the first thermistor type. Method 0333 acts as the logical countercondition of method 0331 and is triggered when any of the following abnormal situations occur: if the theoretical minimum value of the first acquired voltage value is less than the minimum boundary of the first voltage range (i.e., below the lower limit standard), or if the theoretical maximum value of the first acquired voltage value is greater than the maximum boundary of the first voltage range (i.e., exceeding the upper limit standard), or if both the lower and upper limits are met simultaneously, the detection system 10 will make an exclusionary judgment, determining that the thermistor actually installed in the charging gun is not of the first thermistor type.

[0085] Please see Figure 2 , Figure 3 and Figure 8 In some embodiments, the detection circuit further includes an operational amplifier circuit 14, a second resistor R2 is provided in the second detection branch, and an operational amplifier 141 is provided in the operational amplifier circuit 14. 035: Based on the ambient temperature and the resistance value of the second detection branch, the second acquisition voltage value is determined, including:

[0086] 0351: Based on the relationship between ambient temperature and the second thermistor, determine the minimum resistance value of the second thermistor and the maximum resistance value of the second thermistor.

[0087] 0353: Based on the resistance value of the second resistor R2, the minimum resistance value of the second thermistor, and the maximum resistance value of the second thermistor, determine the minimum and maximum values ​​of the voltage at the non-inverting input terminal of the operational amplifier 141.

[0088] 0355: Determine the second acquisition voltage value of the operational amplifier circuit 14 based on the minimum value of the voltage at the non-inverting input terminal of the operational amplifier 141, the maximum value of the voltage at the non-inverting input terminal of the operational amplifier 141, the reference voltage at the inverting input terminal of the operational amplifier 141, and the amplification gain of the operational amplifier 141.

[0089] The control method of the above detection system can be applied to the control device of the detection system. The first determining module is used to determine the minimum resistance value and the maximum resistance value of the second thermistor based on the ambient temperature and the second correspondence; based on the resistance value of the second resistor R2, the minimum resistance value and the maximum resistance value of the second thermistor, the minimum and maximum resistance values ​​of the second thermistor are determined; based on the minimum and maximum voltage values ​​of the non-inverting input terminal of the operational amplifier 141, the reference voltage of the inverting input terminal of the operational amplifier 141, and the amplification gain of the operational amplifier 141, the second acquisition voltage value of the operational amplifier circuit 14 is determined.

[0090] Specifically, in method 0351, the detection system 10 needs to use the known ambient temperature parameters and the correspondence between the resistance value of the second thermistor and the temperature to determine the lower limit value of the minimum resistance value that the second thermistor may have at the current temperature, and the upper limit value of the maximum resistance value that the second thermistor may have at the current temperature. These two extreme parameters together constitute the theoretical resistance fluctuation range of the second thermistor under the current temperature conditions.

[0091] Specifically, in method 0353, the hardware circuit characteristics are converted and calculated based on the resistance range obtained in method 0351. Figure 3 For example, at the non-inverting input of operational amplifier 141, the thermistor of the charging gun connected to the circuit and the second resistor R2 in the second detection branch divide the voltage. The voltage at the non-inverting input of operational amplifier 141 is 5V * thermistor resistance value / (thermistor resistance value + second resistor R2 resistance value). By taking the temperature-resistance relationship of the second thermistor, the minimum and maximum resistance values ​​of the second thermistor at the current ambient temperature can be obtained. Figure 3 The circuit shown obtains the minimum and maximum values ​​of the voltage at the non-inverting input terminal of operational amplifier 141. In method 0355, the detection system 10 performs comprehensive calculations based on the acquired voltage range parameters and the hardware settings of operational amplifier 141. The second acquired voltage value of operational amplifier circuit 14 is determined according to the minimum and maximum values ​​of the voltage at the non-inverting input terminal of operational amplifier 141, the reference voltage at the inverting input terminal of operational amplifier 141, and the amplification gain of operational amplifier 141.

[0092] Furthermore, the principle of determining the second acquisition voltage value of the operational amplifier circuit 14 is similar to that of determining the first acquisition voltage value of the operational amplifier circuit 14 mentioned above, and will not be repeated here.

[0093] Please see Figure 2 and Figure 3 In some embodiments, 037: determining whether the thermistor configured inside the charging gun is a second thermistor based on the second collected voltage value and the second voltage range includes:

[0094] 0371: When both the maximum and minimum values ​​of the second collected voltage are within the second voltage range, the thermistor configured inside the charging gun is determined to be the second thermistor;

[0095] 0373: If the maximum or minimum value of the second collected voltage is not within the range of the second voltage, it is determined that the thermistor configured in the charging gun is not the second thermistor.

[0096] The control method of the above detection system can be applied to the control device of the detection system. The first determining module is used to determine that the thermistor configured in the charging gun is the second thermistor when both the maximum and minimum values ​​of the second collected voltage value are within the second voltage range; and to determine that the thermistor configured in the charging gun is not the second thermistor when the maximum or minimum value of the second collected voltage value is not within the second voltage range.

[0097] Specifically, in method 0371, the detection system 10 performs a verification operation based on the second acquired voltage value. Specifically, it simultaneously checks the maximum and minimum values ​​of the second acquired voltage value. The minimum value of the second acquired voltage value must be greater than or equal to the minimum value of the second voltage range, and the maximum value of the second acquired voltage value must be less than or equal to the maximum value of the second voltage range. Both conditions must be met simultaneously to determine that the thermistor actually installed in the charging gun is of the second thermistor type. Method 0373 acts as the logical countercondition of method 0371 and is triggered when any of the following abnormal situations occur: if the theoretical minimum value of the second acquired voltage value is less than the minimum boundary of the second voltage range (i.e., below the lower limit standard), or if the theoretical maximum value of the second acquired voltage value is greater than the maximum boundary of the second voltage range (i.e., exceeding the upper limit standard), or if both the lower and upper limits are met simultaneously, the detection system 10 will make an exclusionary judgment, determining that the thermistor actually installed in the charging gun is not of the second thermistor type. The detection system 10 will then re-determine the type of the thermistor in the charging gun according to the above method.

[0098] Please see Figure 2 , Figure 3 and Figure 4 In some implementations, the control method further includes:

[0099] 039: If the thermistor configured inside the charging gun is not the first thermistor and is not the second thermistor, a temperature warning message will be sent.

[0100] The control method of the above detection system can be applied to the control device of the detection system. The first determining module is used to send a temperature warning message when the thermistor configured in the charging gun is not the first thermistor and the thermistor configured in the charging gun is not the second thermistor.

[0101] Understandably, if the type of thermistor configured inside the charging gun cannot be determined after repeated checks, the detection system 10 will send a temperature signal warning message to the user.

[0102] Please see Figure 2 , Figure 3 and Figure 9 In some embodiments, the detection branch includes a first detection branch, a second detection branch, and an operational amplifier circuit 14. The thermistor includes a first thermistor and a second thermistor. The operational amplifier circuit 14 is provided with an operational amplifier 141. 05: Determining the resistance value of the thermistor according to the type of thermistor and the detection branch includes:

[0103] 051: When the thermistor is of the first type, the first actual voltage at the non-inverting input terminal of the operational amplifier 141 is acquired through the first detection branch and the operational amplifier circuit 14.

[0104] 053: Determine the resistance value of the first thermistor based on the first actual voltage;

[0105] 055: When the thermistor is of the second type, the second actual voltage at the non-inverting input terminal of the operational amplifier 141 is acquired through the second detection branch and operational amplifier circuit 14.

[0106] 057: Determine the resistance value of the second thermistor based on the second actual voltage.

[0107] The control method of the above-mentioned detection system can be applied to the control device of the detection system. The second determining module is used to acquire the first actual voltage at the non-inverting input terminal of the operational amplifier 141 through the first detection branch and operational amplifier circuit 14 when the thermistor is of the first type; and to determine the resistance value of the first thermistor based on the first actual voltage. When the thermistor is of the second type, the module acquires the second actual voltage at the non-inverting input terminal of the operational amplifier 141 through the second detection branch and operational amplifier circuit 14; and to determine the resistance value of the second thermistor based on the second actual voltage.

[0108] Understandably, after confirming the type of thermistor in the charging gun, the formula used in the previous process of determining the thermistor in the charging gun is applied. The voltage at the non-inverting input of the operational amplifier 141 is calculated using the first or second voltage value collected by the controller 11. The resistance value of the first or second thermistor is calculated using the voltage division relationship between the thermistor at the non-inverting input of the operational amplifier 141 and the first resistor R1 or the second resistor R2. This determines the temperature of the first or second thermistor, and thus determines whether charging can be performed by the charging gun.

[0109] In summary, in the control method and control device of the detection system provided in this application, the type of thermistor configured in the charging gun is determined by the ambient temperature, the resistance value of the detection circuit, and the preset acquisition voltage range. Since the type of thermistor corresponds one-to-one with the detection branch, and the detection circuit includes different detection branches, the detection branch corresponding to this type of thermistor can be determined according to the type of thermistor. Then, the resistance value of the thermistor is determined through the detection branch, and the operation of the charging gun is controlled according to the type and resistance value of the thermistor. The control method provided in this application can acquire the temperature of charging guns with different types of built-in thermistors, exhibiting high compatibility.

[0110] In some implementations, please refer to Figure 3 This application also provides a detection system 10, which includes a controller 11, a detection circuit 12, and an ambient temperature acquisition circuit 13. The detection circuit 12 and the ambient temperature acquisition circuit 13 are both connected to the controller 11. The detection circuit 12 includes different detection branches. The controller 11 is used to implement the control method in any of the above embodiments.

[0111] In some implementations, please refer to Figure 3 The detection branch includes a first detection branch 121 and a second detection branch 122. Both the first detection branch 121 and the second detection branch 122 are connected to the controller 11. The first detection branch 121 is used to detect the first thermistor, and the second detection branch 122 is used to detect the second thermistor.

[0112] In some implementations, please refer to Figure 3 The detection system also includes a power manager 15 connected to the controller. In the event of overvoltage, the power manager 15 controls the power to shut down and sends a signal to the controller 11 to reset the controller 11. In the event of undervoltage, the power manager 15 sends a signal to the controller 11 to reset the controller 11.

[0113] In some implementations, please refer to Figure 3 and Figure 10The power manager 15 also includes a power supply module 151, a fault handling module 152, and a timing module 153. In the event of overvoltage, the fault handling module 152 controls the power supply to shut down and issues an overvoltage fault signal. In the event of undervoltage, the fault handling module 152 issues an undervoltage fault signal. When the controller 11 detects a fault in the microcontroller, it sends a fault indication signal to the power manager 15, causing the controller 11 to reset. The timing module 153 receives the watchdog signal sent by the controller 11. If the watchdog signal response is incorrect or not received within the specified window time, the power manager 15 sends a timing fault indication signal to the controller 11 through the timing module 153. If the timing fault indication signal is sent multiple times consecutively, the power manager 15 sends a signal to the controller 11, causing the controller 11 to reset.

[0114] In some implementations, please refer to Figure 11 This application also provides an electronic device 30, which includes a memory and a processor. The memory is configured to store a computer program, and the processor, when executing the computer program, implements the control method in any of the above embodiments.

[0115] For example, when the processor of electronic device 30 executes a computer program stored in memory, it implements the following control method:

[0116] 03: Determine the type of thermistor configured in the charging gun based on the ambient temperature, the resistance value of the detection circuit, and the preset acquisition voltage range. The type of thermistor corresponds one-to-one with the detection branch.

[0117] 05: Determine the resistance value of the thermistor based on its type and detection circuit;

[0118] 07: Control the operation of the charging gun according to the type and resistance value of the thermistor.

[0119] For example, when the processor of electronic device 30 executes a computer program stored in memory, it implements the following control method:

[0120] 031: Determine the first acquisition voltage value based on the ambient temperature and the resistance value of the first detection branch;

[0121] 033: Based on the first collected voltage value and the first voltage range, determine whether the thermistor configured inside the charging gun is the first thermistor;

[0122] 035: If the thermistor configured in the charging gun is not the first thermistor, the second acquisition voltage value is determined based on the ambient temperature and the resistance value of the second detection branch.

[0123] 037: Based on the second collected voltage value and the second voltage range, determine whether the thermistor configured inside the charging gun is the second thermistor.

[0124] For example, when the processor of electronic device 30 executes the computer program stored in memory, it can also implement the control methods in 0311, 0313, 0315, 03151, 03153, 03155, 03157, 031571, 0331, 0333, 0351, 0353, 0355, 0371, 0373, 039, 051, 053, 055 and 057.

[0125] In some implementations, please refer to Figure 11 This application also provides a vehicle 100, including the detection system 10 in any of the above embodiments or the electronic device 30 in any of the above embodiments.

[0126] Please see Figure 12 In some embodiments, this application also provides a computer program product 200, on which a computer program 202 is stored, which, when executed by a processor, implements the control method in any of the above embodiments.

[0127] For example, when computer program 202 is executed by processor 20, the following control method is implemented:

[0128] 03: Determine the type of thermistor configured in the charging gun based on the ambient temperature, the resistance value of the detection circuit, and the preset acquisition voltage range. The type of thermistor corresponds one-to-one with the detection branch.

[0129] 05: Determine the resistance value of the thermistor based on its type and detection circuit;

[0130] 07: Control the operation of the charging gun according to the type and resistance value of the thermistor.

[0131] For example, when computer program 202 is executed by processor 20, the following control method is implemented:

[0132] 031: Determine the first acquisition voltage value based on the ambient temperature and the resistance value of the first detection branch;

[0133] 033: Based on the first collected voltage value and the first voltage range, determine whether the thermistor configured inside the charging gun is the first thermistor;

[0134] 035: If the thermistor configured in the charging gun is not the first thermistor, the second acquisition voltage value is determined based on the ambient temperature and the resistance value of the second detection branch.

[0135] 037: Based on the second collected voltage value and the second voltage range, determine whether the thermistor configured inside the charging gun is the second thermistor.

[0136] For example, when computer program 202 is executed by processor 20, the control methods in 0311, 0313, 0315, 03151, 03153, 03155, 03157, 031571, 0331, 0333, 0351, 0353, 0355, 0371, 0373, 039, 051, 053, 055 and 057 can also be implemented.

[0137] In the computer program product 200 of this application, the type of thermistor configured inside the charging gun is determined by the ambient temperature, the resistance value of the detection circuit, and a preset acquisition voltage range. Since the type of thermistor corresponds one-to-one with the detection branch, and the detection circuit includes different detection branches, the detection branch corresponding to that type of thermistor can be determined based on its type. Then, the resistance value of the thermistor is determined through the detection branch, and the operation of the charging gun is controlled based on the type and resistance value of the thermistor. The control method provided in this application can acquire temperature data from charging guns with different types of built-in thermistors, exhibiting high compatibility.

[0138] In the description of this specification, the references to terms such as "some embodiments," "in one example," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0139] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this application pertain.

[0140] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A control method for a detection system, characterized in that, The detection system includes a detection circuit, which includes different detection branches, and the control method includes: Based on the ambient temperature, the resistance value of the detection circuit, and the preset acquisition voltage range, the type of thermistor configured in the charging gun is determined, and the type of thermistor corresponds one-to-one with the detection branch. The resistance value of the thermistor is determined according to the type of thermistor and the detection branch. The charging gun is controlled to operate based on the type and resistance value of the thermistor; the detection circuit includes a first detection circuit and a second detection circuit, the thermistor includes a first thermistor and a second thermistor, and the preset acquisition voltage range includes a first voltage range and a second voltage range, where the first voltage range corresponds to the first thermistor and the second voltage range corresponds to the second thermistor. Determining the type of thermistor configured in the charging gun based on the ambient temperature, the resistance value of the detection circuit, and the preset acquisition voltage range includes: The first acquisition voltage value is determined based on the ambient temperature and the resistance value of the first detection branch. Based on the first collected voltage value and the first voltage range, determine whether the thermistor configured inside the charging gun is the first thermistor; If the thermistor configured in the charging gun is not the first thermistor, the second sampling voltage value is determined based on the ambient temperature and the resistance value of the second detection branch. Based on the second collected voltage value and the second voltage range, determine whether the thermistor configured inside the charging gun is the second thermistor.

2. The control method according to claim 1, characterized in that, The detection circuit further includes an operational amplifier circuit. The first detection branch is provided with a first resistor, and the operational amplifier circuit is provided with an operational amplifier. Determining the first acquisition voltage value based on the ambient temperature and the resistance value of the first detection branch includes: Based on the ambient temperature and the first correspondence, the minimum resistance value and the maximum resistance value of the first thermistor are determined. Based on the resistance value of the first resistor, the minimum resistance value of the first thermistor, and the maximum resistance value of the first thermistor, determine the minimum value and the maximum value of the non-inverting input voltage of the operational amplifier. The first sampling voltage value of the operational amplifier circuit is determined based on the minimum value of the voltage at the non-inverting input terminal of the operational amplifier, the maximum value of the voltage at the non-inverting input terminal of the operational amplifier, the reference voltage at the inverting input terminal of the operational amplifier, and the amplification gain of the operational amplifier.

3. The control method according to claim 2, characterized in that, The operational amplifier circuit is further provided with a third resistor, a fourth resistor, a fifth resistor, and a sixth resistor. The determination of the first sampled voltage value of the operational amplifier circuit based on the minimum value of the non-inverting input voltage, the maximum value of the non-inverting input voltage, the reference voltage at the inverting input, and the amplification gain of the operational amplifier includes: The reference voltage at the inverting input of the operational amplifier is determined based on the resistance values ​​of the third resistor and the fourth resistor. The amplification gain of the operational amplifier is determined based on the resistance values ​​of the fifth resistor and the sixth resistor. The output voltage of the operational amplifier is determined based on the minimum value of the voltage at the non-inverting input terminal of the operational amplifier, the maximum value of the voltage at the non-inverting input terminal of the operational amplifier, the reference voltage at the inverting input terminal of the operational amplifier, and the amplification gain of the operational amplifier. The first sampling voltage value of the operational amplifier circuit is determined based on the output voltage of the operational amplifier.

4. The control method according to claim 3, characterized in that, The operational amplifier circuit also includes voltage divider resistors. Determining the first sampled voltage value of the operational amplifier circuit based on the output voltage of the operational amplifier includes: The first sampling voltage value of the operational amplifier circuit is determined based on the output voltage of the operational amplifier and the resistance value of the voltage divider resistor.

5. The control method according to claim 1, characterized in that, The step of determining whether the thermistor configured inside the charging gun is the first thermistor based on the first collected voltage value and the first voltage range includes: If both the maximum and minimum values ​​of the first collected voltage are within the first voltage range, the thermistor configured inside the charging gun is determined to be the first thermistor. If the maximum or minimum value of the first collected voltage is not within the range of the first voltage, it is determined that the thermistor configured in the charging gun is not the first thermistor.

6. The control method according to claim 1, characterized in that, The detection circuit further includes an operational amplifier circuit. The second detection branch is equipped with a second resistor, and the operational amplifier circuit is equipped with an operational amplifier. Determining the second acquisition voltage value based on the ambient temperature and the resistance value of the second detection branch includes: Based on the relationship between ambient temperature and the second, determine the minimum and maximum resistance values ​​of the second thermistor. Based on the resistance value of the second resistor, the minimum resistance value of the second thermistor, and the maximum resistance value of the second thermistor, determine the minimum value and the maximum value of the non-inverting input voltage of the operational amplifier. The second acquisition voltage value of the operational amplifier circuit is determined based on the minimum value of the voltage at the non-inverting input terminal of the operational amplifier, the maximum value of the voltage at the non-inverting input terminal of the operational amplifier, the reference voltage at the inverting input terminal of the operational amplifier, and the amplification gain of the operational amplifier.

7. The control method according to claim 1, characterized in that, The step of determining whether the thermistor configured inside the charging gun is the second thermistor based on the second collected voltage value and the second voltage range includes: If both the maximum and minimum values ​​of the second collected voltage are within the range of the second voltage, the thermistor configured inside the charging gun is determined to be the second thermistor. If the maximum or minimum value of the second collected voltage is not within the range of the second voltage, it is determined that the thermistor configured in the charging gun is not the second thermistor.

8. The control method according to claim 1, characterized in that, The control method further includes: If the thermistor configured in the charging gun is not the first thermistor and the thermistor configured in the charging gun is not the second thermistor, a temperature warning message is sent.

9. The control method according to claim 1, characterized in that, The detection branch includes a first detection branch, a second detection branch, and an operational amplifier circuit. The thermistor includes a first thermistor and a second thermistor. The operational amplifier circuit is equipped with an operational amplifier. Determining the resistance value of the thermistor based on its type and the detection branch includes: When the thermistor is of the first type, the first actual voltage at the non-inverting input of the operational amplifier is acquired through the first detection branch and the operational amplifier circuit. The resistance value of the first thermistor is determined based on the first actual voltage; When the thermistor is of the second type, the second actual voltage at the non-inverting input of the operational amplifier is acquired through the second detection branch and the operational amplifier circuit. The resistance value of the second thermistor is determined based on the second actual voltage.

10. A detection system, characterized in that, The detection system includes a controller, a detection circuit, and an ambient temperature acquisition circuit. The detection circuit and the ambient temperature acquisition circuit are both connected to the controller. The detection circuit includes different detection branches. The controller is used to implement the control method according to any one of claims 1-9.

11. The detection system according to claim 10, characterized in that, The detection branch includes a first detection branch and a second detection branch, both of which are connected to the controller. The first detection branch is used to detect a first thermistor, and the second detection branch is used to detect a second thermistor.

12. An electronic device, characterized in that, The electronic device includes a memory and a processor, the memory being configured to store a computer program, and the processor, when executing the computer program, implementing the control method according to any one of claims 1-9.

13. A vehicle, characterized in that, It includes the detection system of any one of claims 10-11, or the electronic device of claim 12.

14. A computer program product having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the control method according to any one of claims 1-9.

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