New energy automobile charging control device and method and new energy automobile charging power supply

Abstract

The invention discloses a new energy automobile charging control device and method and a new energy automobile charging power supply, and relates to the technical field of new energy automobile charging, and the new energy automobile charging control device comprises the following modules: a temperature measurement module which comprises a temperature sensor; according to the invention, the data processing module analyzes the transmission data of the temperature measurement module and the current measurement module to obtain the safety value of the charging plug, the safety value of the electronic switch and the safety value of the cable node, so that the safety of the charging plug, the electronic switch and the cable node can be monitored in real time; and then the control module controls the charging device so as to carry out safety protection on the charging plug, the electronic switch and the cable node. According to the charging control device, the charging plug safety value, the electronic switch safety value and the cable node safety value are comprehensively analyzed according to the charging device comprehensive safety value, so that the safety of the charging device is analyzed, the charging device is controlled, and the practicability of the charging control device is improved.

Description

Technical Field

[0001] This invention relates to the field of charging technology for new energy vehicles, specifically to a charging control device, method, and charging power supply for new energy vehicles. Background Technology

[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels as their power source (or use conventional vehicle fuels but employ new onboard power devices), integrating advanced technologies in vehicle power control and drive, resulting in vehicles with advanced technical principles and new technologies and structures. With the increasing popularity of new energy vehicles, charging infrastructure for them is also becoming more widespread.

[0003] According to CN114530902A-New Energy Vehicle Charging Control Device, Method and New Energy Vehicle Charging Power Supply, hereinafter collectively referred to as the reference patent, the reference patent implements safety monitoring of the plug temperature to achieve safety control of the charging device. However, during the charging process, the charging device may have temperature safety hazards not only in the plug, but also in the electronic switches in the internal circuit and at various nodes.

[0004] In summary, a new energy vehicle charging control device, method, and new energy vehicle charging power supply have been designed. Summary of the Invention

[0005] In order to overcome the above-mentioned shortcomings, the present invention provides a new energy vehicle charging control device, method and new energy vehicle charging power supply.

[0006] The present invention achieves the above objectives through the following technical solutions: A charging control method for a new energy vehicle charging control device includes the following steps: Step 1: Install temperature and current sensors. Install the temperature and current sensors at three locations: the charging plug, the electronic switch inside the charging device, and the cable node. These sensors are used to monitor the temperature and operating current at these three locations in real time. The data detected by the temperature and current sensors are transmitted to the temperature measurement module and the current measurement module, respectively. Step 2: Calculate the overall safety value of the charging device. The data processing module analyzes the transmitted data from the temperature measurement module and the current measurement module to obtain the safety values ​​of the charging plug, the electronic switch, and the cable node, and finally obtains the overall safety value of the charging device. Step 3: Charging safety control. The charging device is controlled based on the comprehensive safety value of the charging device, the safety value of the charging plug, the safety value of the electronic switch, and the safety value of the cable node.

[0007] Preferably, the specific calculation formulas used for the safety values ​​of the charging plug, electronic switch, and cable node are as follows:

[0008] in, In the case of n=1, 2, 3, Safety values ​​for the charging plug in the charging device, For electronic switch safety values, Safety value for cable nodes; These are the input current index and the output current index, respectively. These are the operating temperature index and the safe temperature index, respectively. For Constantly monitor the temperature index. For Constantly monitor the temperature index. for Time and The time interval between moments The following are, in order, the operating current adjustment factor, current influence coefficient, temperature influence coefficient, and temperature rise influence coefficient stored in the data processing module of the charging device.

[0009] As a preferred embodiment, the specific formula for calculating the comprehensive safety value of the charging device is as follows:

[0010] in, For comprehensive safety values, The weighting coefficients are, in order, the safety values ​​of the charging plug, the electronic switch, and the cable node.

[0011] Preferably, the specific steps for obtaining the input current index, output current index, and operating temperature index are as follows: Read the input current value at the corresponding charging plug, electronic switch, or cable node, and perform comprehensive analysis to obtain the input current index at the charging plug, electronic switch, or cable node; Read the output current value at the corresponding charging plug, electronic switch, or cable node, and perform comprehensive analysis to obtain the output current index at the charging plug, electronic switch, or cable node; Read the operating temperature values ​​at the corresponding charging plug, electronic switch, or cable node, and perform comprehensive analysis to obtain the operating temperature values ​​at the charging plug, electronic switch, or cable node.

[0012] A new energy vehicle charging control device, equipped with the new energy vehicle charging control method described above, includes the following modules: The temperature measurement module includes a temperature sensor for real-time detection of the charging plug temperature, electronic switch temperature, and cable node temperature. The current measurement module includes a current sensor for real-time detection of the charging plug's operating current, the electronic switch's operating current, and the cable node's operating current. The control module is used to control the on / off state of the electronic switch, thereby controlling the charging status. The data processing module is used to analyze the data detected by the temperature measurement module and the current measurement module, and to perform real-time calculations on the safety of the charging device.

[0013] As a preferred option, it also includes The storage module is used to store the charging device's operating status, operating information, and user information. The display module is used to display the current working status of the charging device, as well as working information and parameters.

[0014] A new energy vehicle charging power supply, wherein the new energy vehicle charging power supply is equipped with the new energy vehicle charging control device as described above.

[0015] The beneficial effects of this invention are: in the new energy vehicle charging control device, method, and new energy vehicle charging power supply: The data processing module analyzes the transmitted data from the temperature measurement module and the current measurement module to obtain the safety values ​​of the charging plug, the electronic switch, and the cable node. This allows for real-time monitoring of the safety of the charging plug, the electronic switch, and the cable node. The control module then controls the charging device to provide safety protection for the charging plug, the electronic switch, and the cable node. By comprehensively analyzing the safety values ​​of the charging plug, electronic switch, and cable node based on the overall safety values ​​of the charging device, the safety of the charging device can be analyzed, thereby enabling control of the charging device and improving the practicality of the charging control device. Attached Figure Description

[0016] The present invention will be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of the present invention. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0018] like Figure 1As shown, a charging control method for a new energy vehicle charging control device includes the following steps: Step 1: Install temperature and current sensors. Install the temperature and current sensors at three locations: the charging plug, the electronic switch inside the charging device, and the cable node. These sensors are used to monitor the temperature and operating current at these three locations in real time. The data detected by the temperature and current sensors are transmitted to the temperature measurement module and the current measurement module, respectively. Step 2: Calculate the overall safety value of the charging device. The data processing module analyzes the transmitted data from the temperature measurement module and the current measurement module to obtain the safety values ​​of the charging plug, the electronic switch, and the cable node, and finally obtains the overall safety value of the charging device. Step 3: Charging safety control. The charging device is controlled based on the comprehensive safety value of the charging device, the safety value of the charging plug, the safety value of the electronic switch, and the safety value of the cable node.

[0019] Specifically, the calculation formulas for the safety values ​​of the charging plug, electronic switch, and cable node are as follows:

[0020] in, In the case of n=1, 2, 3, Safety values ​​for the charging plug in the charging device, For electronic switch safety values, Safety value for cable nodes; These are the input current index and the output current index, respectively. These are the operating temperature index and the safe temperature index, respectively. For Constantly monitor the temperature index. For Constantly monitor the temperature index. for Time and The time interval between moments The following are, in order, the operating current adjustment factor, current influence coefficient, temperature influence coefficient, and temperature rise influence coefficient stored in the data processing module of the charging device.

[0021] Safety values ​​for the charging plug in the charging device, For electronic switch safety values, Examples of cable node safety values ​​are as follows: Based on long-term work experience, charging plugs, electronic switches, and cable nodes all have corresponding operating current adjustment factors, current influence coefficients, temperature influence coefficients, and temperature rise influence coefficients.

[0022] The operating current adjustment factor, current influence coefficient, temperature influence coefficient, and temperature rise influence coefficient corresponding to the safety value of the charging plug are 0.1, 0.833, 0.974, and 0.826, respectively. Therefore, the safety value of the charging plug is related to its input current index Rdl, output current index Cdl, operating temperature index Tyx, and safe temperature index Taq. For Constantly monitor the temperature index. For Constantly monitor the temperature index. for Time and The time intervals between moments are shown in Table 1 below: Table 1. Examples of safety values ​​for charging plugs

[0023] The safety value of the charging plug is between 25 and 60. Examples 1 and 3 will not issue a warning, but Example 2 will issue a warning.

[0024] Specifically, the formula for calculating the comprehensive safety value of the charging device is as follows:

[0025] in, For comprehensive safety values, The weighting coefficients are, in order, the safety values ​​of the charging plug, the electronic switch, and the cable node.

[0026] Specifically, the steps for obtaining the input current index, output current index, and operating temperature index are as follows: Read the input current value at the corresponding charging plug, electronic switch, or cable node, and perform comprehensive analysis to obtain the input current index at the charging plug, electronic switch, or cable node; Read the output current value at the corresponding charging plug, electronic switch, or cable node, and perform comprehensive analysis to obtain the output current index at the charging plug, electronic switch, or cable node; Read the operating temperature values ​​at the corresponding charging plug, electronic switch, or cable node, and perform comprehensive analysis to obtain the operating temperature values ​​at the charging plug, electronic switch, or cable node.

[0027] A new energy vehicle charging control device includes the following modules: The temperature measurement module includes a temperature sensor for real-time detection of the charging plug temperature, electronic switch temperature, and cable node temperature. The current measurement module includes a current sensor for real-time detection of the charging plug's operating current, the electronic switch's operating current, and the cable node's operating current. The control module is used to control the on / off state of the electronic switch, thereby controlling the charging status. The data processing module is used to analyze the data detected by the temperature measurement module and the current measurement module, and to perform real-time calculations on the safety of the charging device.

[0028] Specifically, it also includes The storage module is used to store the charging device's operating status, operating information, and user information. The display module is used to display the current working status of the charging device, as well as working information and parameters.

[0029] A new energy vehicle charging power supply, wherein the new energy vehicle charging power supply is equipped with the new energy vehicle charging control device as described above.

[0030] Based on the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this invention. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A charging control method for a new energy vehicle charging control device, characterized in that: Includes the following steps: Step 1: Install temperature and current sensors. Install the temperature and current sensors at three locations: the charging plug, the electronic switch inside the charging device, and the cable node. These sensors are used to monitor the temperature and operating current at these three locations in real time. The data detected by the temperature and current sensors are transmitted to the temperature measurement module and the current measurement module, respectively. Step 2: Calculate the overall safety value of the charging device. The data processing module analyzes the transmitted data from the temperature measurement module and the current measurement module to obtain the safety values ​​of the charging plug, the electronic switch, and the cable node, and finally obtains the overall safety value of the charging device. Step 3: Charging safety control. The charging device is controlled based on the comprehensive safety value of the charging device, the safety value of the charging plug, the safety value of the electronic switch, and the safety value of the cable node.

2. The charging control method for new energy vehicles according to claim 1, characterized in that: The specific calculation formulas used for the safety values ​​of the charging plug, electronic switch, and cable node are as follows: ,in, In the case of n=1, 2, 3, Safety values ​​for the charging plug in the charging device, For electronic switch safety values, Safety value for cable nodes; These are the input current index and the output current index, respectively. These are the operating temperature index and the safe temperature index, respectively. For Constantly monitor the temperature index. For Constantly monitor the temperature index. for Time and The time interval between moments The following are, in order, the operating current adjustment factor, current influence coefficient, temperature influence coefficient, and temperature rise influence coefficient stored in the data processing module of the charging device.

3. The charging control method for new energy vehicles according to claim 2, characterized in that: The specific formula for calculating the comprehensive safety value of the charging device is as follows: ,in, For comprehensive safety values, The weighting coefficients are, in order, the safety values ​​of the charging plug, the electronic switch, and the cable node.

4. The charging control method for new energy vehicles according to claim 3, characterized in that: The specific steps for obtaining the input current index, output current index, and operating temperature index are as follows: Read the input current value at the corresponding charging plug, electronic switch, or cable node, and perform comprehensive analysis to obtain the input current index at the charging plug, electronic switch, or cable node; Read the output current value at the corresponding charging plug, electronic switch, or cable node, and perform comprehensive analysis to obtain the output current index at the charging plug, electronic switch, or cable node; Read the operating temperature values ​​at the corresponding charging plug, electronic switch, or cable node, and perform comprehensive analysis to obtain the operating temperature values ​​at the charging plug, electronic switch, or cable node.

5. A new energy vehicle charging control device, equipped with the new energy vehicle charging control method according to any one of claims 1-4, characterized in that: Includes the following modules: The temperature measurement module includes a temperature sensor for real-time detection of the charging plug temperature, electronic switch temperature, and cable node temperature. The current measurement module includes a current sensor for real-time detection of the charging plug's operating current, the electronic switch's operating current, and the cable node's operating current. The control module is used to control the on / off state of the electronic switch, thereby controlling the charging status. The data processing module is used to analyze the data detected by the temperature measurement module and the current measurement module, and to perform real-time calculations on the safety of the charging device.

6. A new energy vehicle charging control device according to claim 1, characterized in that: Also includes The storage module is used to store the charging device's operating status, operating information, and user information. The display module is used to display the current working status of the charging device, as well as working information and parameters.

7. A charging power supply for new energy vehicles, characterized in that: The new energy vehicle charging power supply is equipped with the new energy vehicle charging control device according to any one of claims 5-6.

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