DC 600V under-vehicle power supply fault judgment and disposal tool

Abstract

The utility model provides a DC600V under-vehicle power supply fault judgment and disposal tool which comprises a box body, and a circuit control board and an operation panel are arranged in the box body. The operation panel is provided with an under-vehicle power supply connection interface and a touch display terminal. The circuit control board is respectively connected with the under-vehicle power supply connecting interface and the touch display terminal; the under-vehicle power supply connection interface is used for being in communication connection with an under-vehicle power supply system, reading internal data information of the under-vehicle power supply system and sending the internal data information to the circuit control board; the circuit control board is used for performing fault judgment on the under-vehicle power supply system by using the internal data information to obtain a fault judgment result and / or a disposal flow corresponding to the fault judgment result; and the touch display terminal is used for displaying the fault judgment result and / or the disposal process. According to the utility model, a maintainer can quickly judge the type of the power supply fault under the vehicle and quickly find out a scheme and a flow for processing the fault, so that the maintenance efficiency is greatly improved, and the fault processing time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of vehicle under-vehicle power supply maintenance technology, specifically to a tooling for diagnosing and handling DC600V vehicle under-vehicle power supply faults. Background Technology

[0002] The under-vehicle power supply system of the DC600V type ordinary passenger bus presents significant challenges for on-site maintenance and fault diagnosis due to the large number of manufacturers and multiple product iterations. This requires maintenance personnel to possess high-level professional knowledge and rich practical experience, as well as a thorough understanding of various under-vehicle power supply products, in order to accurately diagnose faults.

[0003] The current method for troubleshooting under-vehicle power systems involves opening the casing, observing the status of indicator lights or digital displays on the internal circuit board, and then consulting the relevant product manual to determine the meaning of the fault. The experience of the repair personnel is then used to troubleshoot the problem. This process is quite cumbersome. Furthermore, the large number of manufacturers and multiple product iterations of under-vehicle power systems result in a wide variety of models, making fault diagnosis and repair extremely difficult. Utility Model Content

[0004] Therefore, this utility model provides a DC600V vehicle under-vehicle power supply fault diagnosis and handling tooling, which aims to solve the technical problems of difficulty and inaccuracy in the traditional vehicle under-vehicle power supply system fault diagnosis and handling.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] According to a first aspect of the present invention, the present invention provides a DC600V vehicle under-vehicle power supply fault diagnosis and handling tooling, the DC600V vehicle under-vehicle power supply fault diagnosis and handling tooling including a housing, the housing being provided with a circuit control board and an operation panel;

[0007] The control panel is equipped with an under-vehicle power connection interface and a touch display terminal.

[0008] The circuit control board is connected to the under-vehicle power connection interface and the touch display terminal, respectively.

[0009] The under-vehicle power connection interface is used to communicate with the under-vehicle power system, read the internal data information of the under-vehicle power system, and send the internal data information to the circuit control board;

[0010] The circuit control board is used to perform fault diagnosis on the under-vehicle power system using the internal data information, and to obtain fault diagnosis results and / or the corresponding handling procedures for the fault diagnosis results.

[0011] The touch display terminal is used to display the fault diagnosis results and / or the handling process.

[0012] Furthermore, the DC600V under-vehicle power supply fault diagnosis and handling tooling also includes a battery;

[0013] The battery and the circuit control board are placed inside the cavity formed by the bottom plate of the housing and the operation panel;

[0014] The battery is used to provide power to the operation panel and the circuit control board.

[0015] Furthermore, the circuit control board uses an STM32 microcontroller to collect and convert internal data information using the communication protocol with the under-vehicle power system, and combines it with data from the communication network management system to diagnose faults in the under-vehicle power system and obtain fault diagnosis results.

[0016] Furthermore, the circuit control board includes an STM32F103RCT6 microcontroller and peripheral circuits; the peripheral circuits include at least one of a voltage conversion circuit, a communication interface conversion circuit, a CPU1 reset circuit, a CPU1 startup circuit, and an external crystal oscillator circuit for the CPU1.

[0017] Furthermore, the voltage conversion circuit is connected to the battery to convert the battery voltage to 3.3V for use by the STM32F103RCT6 microcontroller.

[0018] Furthermore, the communication interface conversion circuit is connected to the under-vehicle power supply connection interface;

[0019] The communication interface conversion circuit uses the MAX3485ESA chip to convert the under-vehicle power connection interface into a microcontroller USART interface.

[0020] Furthermore, the touch display terminal adopts an industrial-grade touch screen;

[0021] The industrial-grade touchscreen is used to display the fault diagnosis results and / or the handling process.

[0022] Furthermore, the operation panel is also equipped with indicator lights; the indicator lights are used to indicate the current status of the DC600V under-vehicle power supply fault diagnosis and handling tooling.

[0023] The indicator lights include a working indicator light, an under-vehicle power supply indicator light, a fault indicator light, and / or an undervoltage indicator light.

[0024] Furthermore, the operation panel is also equipped with a power switch, a charging interface and / or a heat dissipation grid;

[0025] The power switch is used to turn the battery on / off to supply power to the operation panel and the circuit control board;

[0026] The charging interface is used to charge the battery;

[0027] The heat dissipation grid is used to support heat dissipation inside the enclosure.

[0028] Furthermore, the under-vehicle power connection interface adopts an RS-485 interface;

[0029] And / or,

[0030] The battery is a 24V-2AH lithium battery.

[0031] The present invention, by adopting the above technical solution, has at least the following beneficial effects:

[0032] This invention provides a DC600V under-vehicle power supply fault diagnosis and handling fixture, including a housing. Inside the housing are a circuit control board and an operation panel. The operation panel has an under-vehicle power supply connection interface and a touch display terminal. The circuit control board is connected to both the under-vehicle power supply connection interface and the touch display terminal. The under-vehicle power supply connection interface communicates with the under-vehicle power supply system, reads its internal data, and sends it to the circuit control board. The circuit control board uses the internal data to diagnose faults in the under-vehicle power supply system, obtaining fault diagnosis results and / or corresponding handling procedures. The touch display terminal displays the fault diagnosis results and / or the handling procedures. Therefore, maintenance personnel can quickly determine the type of under-vehicle power supply fault and, through the fault handling procedure, quickly find a solution and process to handle the fault, greatly improving maintenance efficiency and shortening fault handling time.

[0033] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This invention provides a perspective view of the overall structure of the DC600V under-vehicle power supply fault diagnosis and handling tooling provided in an embodiment of the present invention.

[0036] Figure 2 A simplified schematic diagram of the operation panel provided in an embodiment of the present invention is shown.

[0037] Figure 3 The circuit diagram of the DC600V under-vehicle power supply fault diagnosis and handling tooling provided in this embodiment of the present invention is shown.

[0038] Figure 4 The circuit schematic of the STM32F103RCT6 microcontroller provided in this embodiment of the present invention is shown.

[0039] Figure 5 The circuit schematic diagram related to the CPU provided in this embodiment of the present invention is shown.

[0040] Figure 6 A circuit diagram of the voltage conversion circuit provided in an embodiment of this utility model is shown;

[0041] Figure 7 The circuit diagram of the communication interface conversion circuit provided in this embodiment of the present invention is shown.

[0042] Attached reference numerals: 10-box body; 20-operation panel; 30-touch display terminal; 40-under-vehicle power connection interface; 50-charging interface; 60-indicator light; 70-heat dissipation grille. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0044] The under-vehicle power supply system of the DC600V type ordinary passenger bus presents significant challenges for on-site maintenance and fault diagnosis due to the large number of manufacturers and multiple product iterations. This requires maintenance personnel to possess high-level professional knowledge and rich practical experience, as well as a thorough understanding of various under-vehicle power supply products, in order to accurately diagnose faults.

[0045] Example 1:

[0046] This utility model provides a tooling for diagnosing and handling faults in a DC600V vehicle under-vehicle power supply. (Reference) Figure 1The image shows a three-dimensional view of the DC600V vehicle under-vehicle power supply fault diagnosis and handling tooling. As can be seen from the three-dimensional view, the DC600V vehicle under-vehicle power supply fault diagnosis and handling tooling is in the form of a portable carrying case. Specifically, it can include at least a case body 10, and the case body 10 contains a circuit control board and an operation panel 20.

[0047] refer to Figure 2 This is a simplified schematic diagram of the operation panel 20. The operation panel 20 is equipped with an under-vehicle power connection interface 40 (output) and a touch display terminal 30.

[0048] The circuit control board is connected to the under-vehicle power connection interface 40 and the touch display terminal 30 respectively. The under-vehicle power connection interface 40 is used to communicate with the under-vehicle power system, read the internal data information of the under-vehicle power system, and send the internal data information to the circuit control board. The circuit control board is used to perform fault diagnosis on the under-vehicle power system using the internal data information, and obtain the fault diagnosis result and / or the corresponding handling procedure. The touch display terminal 30 is used to display the fault diagnosis result and / or the handling procedure.

[0049] Example 2:

[0050] This embodiment is based on Embodiment 1. The DC600V under-vehicle power supply fault diagnosis and handling fixture also includes a battery; the battery and circuit control board are placed inside the cavity formed by the bottom plate of the housing 10 and the operation panel 20; the battery is used to provide power to the operation panel 20 and the circuit control board. Figure 3 The diagram shows the circuit schematic of the DC600V under-vehicle power supply fault diagnosis and handling tool.

[0051] The circuit control board has a first terminal (shown as VIN+ and VIN- in the figure) connected to the battery to obtain power, a second terminal connected to the touch display terminal 30 (shown as RX, TX, GND, etc. in the figure), and a third terminal connected to the under-vehicle power connection interface 40 (shown as the output port in the figure). Preferably, the under-vehicle power connection interface 40 adopts an RS-485 interface.

[0052] Preferably, the touch display terminal 30 adopts an industrial-grade touch screen; the industrial-grade touch screen is used to display fault diagnosis results and handling procedures. In practical applications, the industrial-grade touch screen can be equipped with corresponding professional software to realize its functions, which can display the corresponding fault codes and their meanings to maintenance personnel, and guide maintenance personnel to perform corresponding fault handling.

[0053] Optionally, the control panel 20 may also be equipped with a power switch (shown as the switch in the figure), a charging interface 50 (shown as the charging port in the figure), and a heat dissipation grille 70 (shown as MS-1 and MS-2 in the figure).

[0054] The power switch is used to turn the battery on / off to supply power to the operation panel and circuit control board; the charging interface 50 is used to charge the battery; the heat dissipation grid 70 is used to support the heat dissipation inside the enclosure; the charging interface 50 can be used to charge the battery.

[0055] Furthermore, the operation panel 20 may also be equipped with indicator lights 60, which are used to indicate the current status of the DC600V under-vehicle power supply fault diagnosis and handling tooling. The indicator lights 60 include a working indicator light, an under-vehicle power supply connection indicator light, a fault indicator light, and an undervoltage indicator light (LED1, LED2, LED3, and LED4 in the figure). It can be understood that when any indicator light is lit, it indicates the corresponding status of the DC600V under-vehicle power supply fault diagnosis and handling tooling.

[0056] Example 3:

[0057] This embodiment is based on embodiment 2. The circuit control board uses an STM32 microcontroller to collect and convert internal data information using the communication protocol with the vehicle under-vehicle power system, and combines it with data from the communication network management system to perform fault diagnosis on the vehicle under-vehicle power system and obtain the fault diagnosis result.

[0058] Specifically, the circuit control board includes an STM32F103RCT6 microcontroller and peripheral circuits; the peripheral circuits include a voltage conversion circuit, a communication interface conversion circuit, a CPU1 reset circuit, a CPU1 startup circuit, and an external crystal oscillator circuit for CPU1. For example... Figure 4 The diagram shown is the circuit schematic of the STM32F103RCT6 microcontroller. Figure 5 The diagram shows the circuit schematics of the CPU1 reset circuit, CPU1 startup circuit, and CPU1 external crystal oscillator circuit. In this embodiment, the circuit control board uses an STM32F103RCT6 as its core, along with peripheral circuits, to collect and convert internal data information from the vehicle's under-vehicle power system, as well as analyze fault diagnosis and handling processes.

[0059] Example 4:

[0060] This embodiment is based on Embodiment 2, using a 24V-2AH lithium battery, which can achieve 4 hours of continuous operation. Furthermore, the circuit control board may also include a voltage conversion circuit. For example... Figure 6 The diagram shows the circuit schematic of the voltage conversion circuit. This circuit is connected to the battery and converts the battery voltage to 3.3V to power the STM32F103RCT6 microcontroller. In other words, the power supply draws from the battery and converts it to 3.3V via a power chip to provide power to the STM32 microcontroller.

[0061] Example 5:

[0062] This embodiment is based on Embodiment 2, and the circuit control board may further include a communication interface conversion circuit. For example... Figure 7 The diagram shown is a schematic of the communication interface conversion circuit. Specifically, the communication interface conversion circuit is connected to the under-vehicle power connection interface 40 and uses a MAX3485ESA chip to convert the under-vehicle power connection interface 40 (RS-485 interface) into a microcontroller USART interface.

[0063] In summary, the DC600V under-vehicle power supply fault diagnosis and handling tooling proposed in this utility model communicates with the under-vehicle power supply system, reads its internal data and status information, and transmits this information to a touch display terminal. Upon receiving the data, the touch display terminal displays the corresponding fault codes and their meanings to maintenance personnel, guiding them in the appropriate fault handling. This utility model significantly improves maintenance efficiency, reduces maintenance time and costs caused by misdiagnosis, provides strong technical support for maintenance personnel, and enhances the reliability and safety of the under-vehicle power supply system.

[0064] In the description of this application, it should be understood that the terms "upper", "lower", "inner", "outer", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0065] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" or "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0066] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0067] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A tooling for diagnosing and handling DC 600V vehicle under-vehicle power supply faults, characterized in that, The DC600V under-vehicle power supply fault diagnosis and handling tooling includes a housing, and the housing is equipped with a circuit control board and an operation panel; The control panel is equipped with an under-vehicle power connection interface and a touch display terminal. The circuit control board is connected to the under-vehicle power connection interface and the touch display terminal, respectively. The under-vehicle power connection interface is used to communicate with the under-vehicle power system, read the internal data information of the under-vehicle power system, and send the internal data information to the circuit control board; The circuit control board is used to perform fault diagnosis on the under-vehicle power system using the internal data information, and to obtain fault diagnosis results and / or the corresponding handling procedures for the fault diagnosis results. The touch display terminal is used to display the fault diagnosis results and / or the handling process.

2. The DC600V vehicle under-vehicle power supply fault diagnosis and handling tooling according to claim 1, characterized in that, The DC600V under-vehicle power supply fault diagnosis and handling tooling also includes a battery; The battery and the circuit control board are placed inside the cavity formed by the bottom plate of the housing and the operation panel; The battery is used to provide power to the operation panel and the circuit control board.

3. The DC600V under-vehicle power supply fault diagnosis and handling tooling according to claim 1, characterized in that, The circuit control board uses an STM32 microcontroller to collect and convert internal data information using the communication protocol with the under-vehicle power system, and combines it with data from the communication network management system to diagnose faults in the under-vehicle power system and obtain fault diagnosis results.

4. The DC600V under-vehicle power supply fault diagnosis and handling tooling according to claim 2, characterized in that, The circuit control board includes an STM32F103RCT6 microcontroller and peripheral circuits; the peripheral circuits include at least one of a voltage conversion circuit, a communication interface conversion circuit, a CPU1 reset circuit, a CPU1 startup circuit, and an external crystal oscillator circuit for CPU1.

5. The DC600V under-vehicle power supply fault diagnosis and handling tooling according to claim 4, characterized in that, The voltage conversion circuit is connected to the battery and is used to convert the battery voltage to 3.3V to provide power to the STM32F103RCT6 microcontroller.

6. The DC600V under-vehicle power supply fault diagnosis and handling tooling according to claim 4, characterized in that, The communication interface conversion circuit is connected to the under-vehicle power supply connection interface; The communication interface conversion circuit uses the MAX3485ESA chip to convert the under-vehicle power connection interface into a microcontroller USART interface.

7. The DC600V under-vehicle power supply fault diagnosis and handling tooling according to claim 1, characterized in that, The touch display terminal uses an industrial-grade touch screen; The industrial-grade touchscreen is used to display the fault diagnosis results and / or the handling process.

8. The DC600V under-vehicle power supply fault diagnosis and handling tooling according to claim 1, characterized in that, The operation panel is also equipped with indicator lights; the indicator lights are used to indicate the current status of the DC600V under-vehicle power supply fault diagnosis and handling tooling. The indicator lights include a working indicator light, an under-vehicle power supply indicator light, a fault indicator light, and / or an undervoltage indicator light.

9. The DC600V under-vehicle power supply fault diagnosis and handling tooling according to claim 2, characterized in that, The operation panel is also equipped with a power switch, a charging interface and / or a heat dissipation grid; The power switch is used to turn the battery on / off to supply power to the operation panel and the circuit control board; The charging interface is used to charge the battery; The heat dissipation grid is used to support heat dissipation inside the enclosure.

10. The DC600V under-vehicle power supply fault diagnosis and handling tooling according to claim 2, characterized in that, The under-vehicle power connection interface adopts an RS-485 interface; And / or, The battery is a 24V-2AH lithium battery.

Images