Detector and method for rapidly detecting SOH (degree of health) of battery of new energy automobile

Abstract

The invention relates to the field of new energy automobile battery detection, in particular to a detector and a method for rapidly detecting the SOH (degree of health) of a new energy automobile battery. The method comprises the steps that a detection gun head is connected with a new energy automobile battery charging socket, a mobile phone program is used for controlling a detector, relevant data of a battery are obtained, the data are analyzed and processed through an intelligent algorithm in combination with collected and input data, the SOH of the battery is evaluated, a detailed analysis report is generated, and value estimation and maintenance suggestions are given to the battery. And battery safety state information can be provided. The method can quickly and accurately detect the SOH value of the battery, provides safety state information, health degree and the like of the battery, does not need to disassemble the battery compared with a traditional detection mode, is short in time, high in precision and simple to operate, and can be widely applied to vehicle daily maintenance battery state inspection, vehicle fault maintenance battery inspection, second-hand vehicle recovery value evaluation and other scenes.

Description

Technical Field

[0001] The present invention relates to the field of new energy vehicle battery detection, and in particular to a detector and method for quickly detecting the state of health (SOH) of a new energy vehicle battery. Background Art

[0002] With the continuous development of new energy technology, new energy batteries have been widely used in electric vehicles, energy storage equipment and other fields. As the core component of new energy vehicles, the performance and life of batteries are affected by many factors, such as the number of charge and discharge times, temperature, current, etc. In order to ensure the safe and reliable operation of new energy batteries, the detection of their health status becomes particularly important; the traditional battery health (SOH) detection method has many shortcomings, and there is no unified standard in the market, such as the need to disassemble the battery pack from the vehicle, the detection time is as long as dozens of hours, etc. In addition, the existing detection equipment is usually large in size, complicated to operate, and not convenient for on-site detection and maintenance. Therefore, the market is in urgent need of a device that can quickly, accurately and conveniently detect the battery health (SOH) to meet the needs of battery detection and battery pack residual value estimation in the new energy vehicle industry. Summary of the invention

[0003] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a fast, accurate and convenient new energy vehicle battery health detector and method.

[0004] In order to achieve the above-mentioned invention object, the technical solution of the device is.

[0005] A detector for quickly detecting the state of health (SOH) of new energy vehicle batteries, comprising: a casing, a detection gun head (with an SOS function and a flashlight), a PCB circuit board, an LED switch board, and a power module installed inside the casing; and an external mobile phone program.

[0006] The casing is the outer shell of the entire detector. A detection gun head (with an SOS function flashlight) is installed at the front end of the casing, and an LED indicator light and a flashlight switch button are provided on the casing.

[0007] The detection gun head (with SOS function and flashlight) is a connection device for inserting into the charging port of a new energy vehicle. It also integrates a high-brightness flashlight function and comes with an SOS emergency signal transmission function. The detection gun head has different versions depending on the different socket protocols in different countries or regions.

[0008] The LED indicator lights are multiple LED indicator lights used to display the relevant status of the detector, including a Bluetooth indicator light, a power indicator light, and a charging status indicator light. The flashlight switch button is a button that controls the SOS function and the flashlight function.

[0009] The PCB circuit board is a multifunctional integrated circuit board including a power switch, a charging interface, a detection module, a communication module and a main control module. It communicates with the BMS of new energy vehicles through the CAN protocol to achieve static monitoring and real-time analysis of battery voltage, current, temperature, internal resistance and other states.

[0010] The power switch is a button used to control the power supply of the switch detector.

[0011] The charging interface is a TYPE-C international universal charging interface used to connect an external power source to charge the built-in lithium battery of the detector.

[0012] The detection module is used to obtain relevant data of the battery after the detector is connected to the battery of the new energy vehicle, and send it to the main control module.

[0013] The communication module is used to provide a Bluetooth communication connection between the main control module and the external mobile phone program.

[0014] The main control module is a module with built-in intelligent algorithms and model parameters. It can process the collected data and send the processing results to an external mobile phone program to provide data basis for battery health management.

[0015] The LED switch board is a circuit board used for switching on and off and adjusting the SOS function and the flashlight function, and realizes the switching between the flashlight and the SOS function through a variety of working modes.

[0016] The power module is a large-capacity lithium battery built into the detector, which ensures long-term standby and operation of the detection gun.

[0017] The external mobile phone program is a program or app on the mobile phone that is used to connect to the tester and analyze and process the vehicle battery information transmitted by the tester. The program or app establishes a communication connection with the tester through the Bluetooth protocol, uses intelligent algorithms and model parameters, processes the test data transmitted by the tester, and finally displays the battery health (SOH) conclusion report on the mobile phone in a graphical way; the mobile phone program has the characteristics of a friendly human-computer interaction interface and clear and convenient operation.

[0018] A method for quickly detecting the state of health (SOH) of a new energy vehicle battery. A mobile phone program is connected to a detector via Bluetooth communication. The detector is inserted into a charging port of a new energy vehicle and connected to the vehicle battery BMS, including the following detection steps.

[0019] The tester obtains data related to the car battery, including battery voltage, current, temperature, internal resistance and other data information.

[0020] The relevant data is processed by the intelligent algorithm and model parameters of the main control module and then transmitted to the mobile phone program.

[0021] The mobile app generates reports on vehicle and battery status.

[0022] Enter relevant vehicle information, click on evaluation, and the program’s intelligent algorithm and model will generate a battery health (SOH) test report that will be displayed on your phone and provide improvement suggestions.

[0023] By adopting the above technical solution, after the tester is connected to the vehicle battery system, the mobile phone program establishes a communication connection with the tester, and the tester obtains relevant battery data. After being processed by the main control module of the tester, it is transmitted to the mobile phone program via Bluetooth. After the mobile phone program processes the relevant data again, it displays the final battery health (SOH) test report on the mobile phone, proposing a solution for battery health management.

[0024] In summary, the beneficial solutions of the present invention are as follows: Check the battery health status (SOH) without disassembling the battery pack The test time is short, and the test results can be obtained in as fast as 10 seconds Easy to use, the detector is small in size, light in weight, easy and quick to operate, and is not restricted by the site The human-computer interaction interface is friendly, simple and easy to operate The detection gun head is equipped with a flashlight function and an SOS signal transmitting function, which are used in specific scenarios. At the same time, the gun head has different versions depending on the different socket protocols in different countries or regions. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall multi-view structure of the detector according to the embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of the multi-angle structure of the detection gun head of the detection instrument according to the embodiment of the present application.

[0027] Figure 3 It is a schematic diagram of the internal structure of the detector according to the embodiment of the present application.

[0028] Figure 4 This is a principle block diagram of the PCB circuit board of the embodiment of the present application.

[0029] Figure 5 It is a schematic diagram of the structure of the PCB circuit board of the embodiment of the present application.

[0030] Figure 6 This is a principle block diagram of the detector of the embodiment of the present application.

[0031] Figure 7 This is the operation flow chart of the detector of the embodiment of the present application.

[0032] Figure 8This is a diagram of the operation interface of the mobile phone program of the embodiment of the present application.

[0033] Fig. 9 This is a test report diagram of an embodiment of the present application.

[0034] Explanation of the accompanying reference numerals: 1. Casing; 2. Detection gun head; 3. Flashlight switch button; 4. LED switch board; 5. PCB circuit board; 6. Left part of the casing; 7. Right part of the casing; 8. Bluetooth connection indicator light; 9. Power on indicator light; 10. Charging indicator light; 11. Light guide column; 12. Power switch; 13. Charging port; 14. Detection module; 15. Communication module; 16. Main control module; 17. Power module; 18. External mobile phone program. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-9 This application is described in further detail.

[0036] The invention discloses a novel real-time state of health (SOH) detector for new energy vehicle batteries.

[0037] Reference Figure 1 , Figure 2 A new type of real-time detection of new energy vehicle battery health (SOH) tester includes a housing 1, a detection gun head 2 is installed at the front end of the housing 1, and the housing body has a flashlight function switch button 3 and multiple LED indicator lights for displaying relevant status of the tester.

[0038] Reference Figure 3 The interior of the detector includes an LED switch board 4, a PCB circuit board 5, and a power module 17.

[0039] Reference Figure 1 , Figure 4 The LED switch board 4, the PCB circuit board 5, and the power module 17 are installed through the position groove reserved on the inner side of the casing, and the casing plays a fixing role; the casing has a Bluetooth connection indicator light 8, a power on indicator light 9, and a charging indicator light 10 from top to bottom near the tail; the signal indicator light is connected to the PCB circuit board 5 through a light guide column 11 to display the status of each signal.

[0040] Reference Figure 3 , Figure 5 The PCB circuit board 5 includes a power switch 12, a charging interface 13, a detection module 14, a communication module 15 and a main control module 16; the lithium battery 17 is connected to the LED switch board 4 and the PCB circuit board 5 through the socket to power the entire detector.

[0041] The present invention discloses a novel real-time detection method for the state of health (SOH) of new energy vehicle batteries. Figure 6 As shown, the following steps are included.

[0042] The S1 detector is turned on and performs a self-test. The power-on indicator light 9 lights up (green) and the Bluetooth indicator light 8 flashes (blue).

[0043] S2 inserts the detector probe into the charging socket of the new energy vehicle and establishes a communication connection with the vehicle.

[0044] S3 opens the mobile phone program 18, clicks to start the test, and the program automatically searches and connects to the tester.

[0045] The S4 detector is connected successfully, and the detection module 14 communicates with the vehicle BMS system, collects battery-related data information, and sends it to the main control module 16.

[0046] The S5 main control module uses specific algorithms and model variables to process the data, and the processing result data is transmitted to the external mobile phone program 18 through the communication module 15.

[0047] The S6 mobile app processes the data transmitted by the tester again and generates relevant reports on the vehicle and battery status.

[0048] In the S7 battery health (SOH) report, click Evaluate SOH, select and enter relevant vehicle parameter information. The system will quickly calculate the battery health (SOH) report through intelligent algorithms and model variables and provide a battery health management solution.

[0049] S8 detection is completed and the detector is unplugged.

[0050] The battery in the detector contains a certain amount of power. If the battery is insufficient when used for the first time, it needs to be charged through the charging interface 13.

[0051] The embodiment of the present application provides a rapid detection instrument and method for the state of health (SOH) of a new energy vehicle battery. The implementation principle is as follows: after the detector is connected to the charging socket of the new energy vehicle, the battery detector collects battery data, analyzes and processes it through specific algorithms and models, and then transmits the detection data to a mobile phone program. After supplementing the relevant vehicle information, the mobile phone program uses relevant algorithms and models to quickly, accurately and conveniently calculate the state of health (SOH) of the new energy vehicle battery, and provide a solution for battery health management.

[0052] The present invention is described in detail above in combination with the embodiments, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention, or directly / indirectly applied in other related technical fields, are included in the scope of patent protection of this application and should still fall within the scope of patent coverage of the present invention.

Claims

1. A detector for quickly detecting the state of health (SOH) of a new energy vehicle battery, comprising: chassis, Detection gun head (with SOS function and flashlight), the casing is equipped with PCB circuit board, LED switch board, power module; And external mobile phone program. The invention is characterized in that a detection gun head is installed at the front end of the housing, and the detection gun head has both SOS function and flashlight function, and the housing is provided with an LED indicator and a flashlight switch button; a PCB circuit board, an LED switch board, a power module are installed inside the housing, and an external mobile phone program is provided; the PCB circuit board integrates a power switch, a charging interface, a detection module, a communication module and a main control module, and the detection module can be connected with the car battery BMS by inserting into the charging port of the new energy vehicle to obtain data information such as battery voltage, current, temperature, internal resistance, etc., and send it to the main control module, and the main control module has built-in intelligent algorithms and model parameters for processing the collected data, and the communication module communicates with the external mobile phone program based on the Bluetooth protocol to transmit the processed data to the mobile phone program; the LED switch board is used to switch and adjust the circuit board with SOS function and flashlight function, and the switching of the flashlight and SOS functions is realized through a variety of working modes; the power module is a built-in large-capacity lithium battery to ensure that the detector can standby and work for a long time; the mobile phone program receives the detector data, and after algorithm processing, it can display the battery health (SOH) detection report in a graphic way and give improvement suggestions.

2. The detector for rapidly detecting the state of health (SOH) of a new energy vehicle battery as claimed in claim 1, characterized in that: The detector housing is made of lightweight, high-strength, insulating engineering plastic material, with an anti-slip surface treatment. It is small in size, easy to hold and carry, and easy to operate. The detection can be completed without disassembling the battery pack and is not restricted by the site. The housing provides effective physical protection for the internal PCB circuit board and LED switch board to prevent external force impact.

3. The detector for rapidly detecting the state of health (SOH) of a new energy vehicle battery as claimed in claim 1, characterized in that: The detection gun head has the functions of strong light illumination and emergency signal SOS transmission. The SOS signal transmission frequency complies with the international general rescue frequency band standard. The brightness of the flashlight can be adjusted to meet the needs of use in different scenarios. At the same time, the detection gun head will have different versions according to the different charging socket protocols in different countries or regions.

4. The detector for rapidly detecting the state of health (SOH) of a new energy vehicle battery as claimed in claim 1, characterized in that: The LED indicator lights include a Bluetooth indicator light, a power indicator light, and a charging status indicator light. Each indicator light has a different color and clearly displays the corresponding status signal through a light guide column. The indicator lights have two prompt modes: flashing and always on, which makes it easy for operators to quickly identify the working status of the detector.

5. The new real-time state of health (SOH) detector for new energy vehicle batteries as claimed in claim 1 is characterized in that: It also includes a power module with a built-in lithium battery. The lithium battery is connected to the PCB circuit board through a socket to power the entire detector. No external power supply is required, and detection can be performed anytime and anywhere, making it more convenient to use.

6. The detector for rapidly detecting the state of health (SOH) of a new energy vehicle battery as claimed in claim 1, characterized in that: The intelligent algorithm of the main control module has a unique technical design. The algorithm combines the battery's charging and discharging characteristics, temperature effects and aging laws, and comes with a variety of model parameter settings. It can accurately and quickly calculate the battery health (SOH) based on battery-related data.

7. The detector for rapidly detecting the state of health (SOH) of a new energy vehicle battery as claimed in claim 1, characterized in that: The external mobile phone program has a simple and friendly human-computer interaction interface. The interface supports switching between multiple languages ​​such as Chinese and English, and can adapt to the needs of different countries or regions. The mobile phone program communicates with the detector via Bluetooth. After receiving the data transmitted by the detector, it uses a unique algorithm to analyze and process the data, and displays the battery health (SOH) conclusion report and battery health management solutions in the form of pictures and text on the mobile phone.

8. The new real-time state of health (SOH) detector for new energy vehicle batteries as claimed in claim 1 is characterized in that: The communication module supports the Bluetooth communication protocol and can establish a stable and fast wireless connection with an external mobile phone program to ensure that the data results are transmitted to the mobile phone program in real time and completely.

9. A method for quickly detecting the state of health (SOH) of a new energy vehicle battery, using the detector and mobile phone program as described in any one of claims 1 to 8, the mobile phone program is connected to the detector via Bluetooth communication, and the detector is plugged into the charging port of the new energy vehicle and connected to the vehicle battery BMS; characterized in that, The process includes the following steps: turn on the power of the tester, insert the test gun into the charging port of the new energy vehicle, turn on the Bluetooth of the mobile phone and run the specified program to connect to the tester; the test module collects battery voltage, current, temperature, internal resistance and other data, and transmits them to the mobile phone program after being processed by the main control module algorithm and model parameters; enter the vehicle information in the mobile phone program, click on the evaluation, and generate and display the battery health (SOH) test report and improvement suggestions after being processed again by the algorithm in the program; After the test is completed, unplug the detector.

10. A method for quickly detecting the state of health (SOH) of a new energy vehicle battery as claimed in claim 9, characterized in that: The entire detection process takes only 10 seconds at the fastest, and the test results are given efficiently and quickly; if communication interruption or data abnormality occurs during the detection process, the detector and the mobile phone program can promptly issue warning messages to prompt the operator to troubleshoot the problem.

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