Fault detection device for high-voltage system of electrically driven passenger car

Abstract

The utility model provides a fault detection device for a high-voltage system of an electrically-driven passenger car, which relates to the technical field of vehicle maintenance and comprises a touch screen, a detection device, a storage device, an adaptive port and an expansion port, the detection device is used for receiving operation data of the high-voltage system of the electrically-driven passenger car sent by the adaptive port, and the storage device is used for storing the operation data of the high-voltage system of the electrically-driven passenger car. Storing the operation data and the detection result in a storage device, and sending the operation data and the detection result to a touch screen for display; when the remote support platform is accessed, running data is sent to the remote support platform, a control instruction returned by the remote support platform is received, and the control instruction is displayed on the touch screen and sent to the adaptive port; the adaptive port is connected with the expansion port, is configured with an electrically-driven passenger car high-voltage system diagnosis protocol and is used for receiving operation data of the electrically-driven passenger car high-voltage system and sending a control instruction to the electrically-driven passenger car high-voltage system; the expansion port is connected with connection ports of various electric drive passenger car high-voltage systems and used for being connected with various types of electric drive passenger car high-voltage systems in an adaptive mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle overhauling technical field especially a kind of electric drive passenger train high-pressure system fault detection device. BACKGROUND

[0002] This section aims to provide background or context for the utility model embodiments recited in the claims. The description herein is not admitted to be prior art merely by inclusion in this section.

[0003] Early public bus is simply mechanical drive type traffic transport tool, and its vehicle detection means is only the method of human body response observation (ear listens, eye looks, hand touches etc.) to make judgment on automobile technical condition. Today, with the development of electric drive public bus technology, the application of electronic, intelligent and automatic technology, the public bus has surpassed the concept of simple traffic transport tool, and has become a mobile data information center. With the great strides of new technology of public bus, the original detection technology and equipment cannot meet the requirements of new technology. The biggest problem is that the comprehensive detection equipment of high-voltage electric system is still in relative blank, and the detection technology of assembly part is mastered by each manufacturer, and only one-to-one detection can be realized, the associated area detection demand outside each assembly cannot be realized, and the comprehensive test scene cannot be constructed.

[0004] The detection technology of core assembly of electric drive passenger train is mastered by each manufacturer, and only one-to-one detection can be realized, the associated area detection demand outside each assembly cannot be realized, and the comprehensive test scene cannot be constructed, which reduces the diagnosis efficiency of passenger train complex fault, cannot realize remote diagnosis of fault, and cannot guarantee the safe operation of passenger train.

[0005] The fault diagnosis of three-electric and auxiliary system of electric drive passenger train can only realize one-to-one detection, which reduces the diagnosis efficiency of passenger train complex fault, cannot guarantee the safe operation of passenger train, and cannot realize remote technical support when station and midway fault of passenger train occurs.

[0006] In summary, a technical scheme is needed to overcome the above defects, to configure high-voltage system fault detection for electric drive passenger train, to improve fault detection efficiency, and to ensure the safe operation of vehicle. UTILITY MODEL CONTENT

[0007] To solve the problems existing in the prior art, the utility model provides a kind of electric drive passenger train high-pressure system fault detection device, comprising: touch screen, detection device, storage device, adaptive port and expansion port;Wherein,

[0008] The detection device is connected with the touch screen and the adaptive port, and is connected with a remote support platform for communication, for receiving operation data of the high-voltage system of the electric drive bus sent by the adaptive port, detecting the operation data to obtain a detection result, storing the operation data and the detection result to the storage device, and sending the operation data and the detection result to the touch screen for display; when accessing the remote support platform, the operation data is sent to the remote support platform, a control instruction returned by the remote support platform is received, the control instruction is displayed on the touch screen, and the control instruction is sent to the adaptive port;

[0009] The touch screen is used for displaying the operation data, the detection result and the control instruction.

[0010] The storage device is used for storing the operation data and the detection result.

[0011] The adaptive port is connected with the expansion port, is configured with a diagnostic protocol of the high-voltage system of the electric drive bus, is used for receiving operation data of the high-voltage system of the electric drive bus, and sends the control instruction to the high-voltage system of the electric drive bus.

[0012] The expansion port is connected with connection ports of various high-voltage systems of the electric drive bus, and is used for adaptively connecting various types of high-voltage systems of the electric drive bus.

[0013] Further, the expansion port is used for connecting various ports including at least an OBD port, a DT 3-pin port, an RS232\485 port, an AMP 5-pin port and a DTP 6-pin port.

[0014] Further, the RS232\485 port is additionally connected with an AMP 6-pin port as needed.

[0015] Further, the adaptive port supports diagnostic protocols including CAN 2.0 / CAN FD / DoIP.

[0016] Further, the adaptive port is connected with the detection device through an I\O interface.

[0017] Further, the adaptive port is connected with the detection device through a Wi-Fi channel.

[0018] Further, the storage device adopts a random access memory and a read-only memory.

[0019] Further, the communication device is connected with the detection device.

[0020] When a field technician needs remote support, an account and a password are input through the touch screen to complete identity verification; after the identity verification is passed, the remote support platform is accessed through the communication device.

[0021] Further, the communication device is connected with the remote support platform through the 4G / 5G network.

[0022] Further, the detection device detects whether the operation data is within a safety range corresponding to the fault threshold according to the set fault threshold, and determines that a fault occurs if the safety range is exceeded, to obtain a detection result.

[0023] The electric drive bus high-voltage system fault detection device can realize comprehensive detection of the whole vehicle high-voltage system of the electric drive bus, quickly lock the fault direction, improve the fault diagnosis ability of electromechanical maintenance personnel and the efficiency of problem handling, so as to reduce the labor intensity of workers, reduce the misjudgment and misreplacement of materials, and reduce unnecessary waste. At the same time, the detection data also provides a reference basis for vehicle maintenance and improves the vehicle maintenance and repair level. It has important significance for ensuring the safe use of electric drive vehicles and the safe operation of new energy vehicles. With the wide application of electric drive vehicles, the demand for this technology in the market will gradually increase, so it will have certain social and economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 is the architecture schematic diagram of the electric drive bus high-voltage system fault detection device of an embodiment of the present application.

[0026] Figure 2 is the architecture schematic diagram of the electric drive bus high-voltage system fault detection device of another embodiment of the present application.

[0027] Figure 3 is the relationship schematic diagram of the adaptive port of an embodiment of the present application.

[0028] Figure 4 is the relationship schematic diagram of the expansion port of an embodiment of the present application.

[0029] Figure 5 is the overall architecture schematic diagram of the fault detection device of an embodiment of the present application.

[0030] Figure 6 is the schematic diagram of the OBD port of an embodiment of the present application.

[0031] Figure 7 is the schematic diagram of the DT 3-pin port of an embodiment of the present application.

[0032] Figure 8 is a schematic view of RS232\485 port of one embodiment of the utility model.

[0033] Figure 9 is a schematic view of AMP 6 pin port of one embodiment of the utility model.

[0034] Figure 10 is a schematic view of AMP 5 pin port of one embodiment of the utility model.

[0035] Figure 11 is a schematic view of DTP 6 pin port of one embodiment of the utility model.

[0036] Explanation of drawing reference numerals:

[0037] 101, touch screen;

[0038] 102, detection device;

[0039] 103, storage device;

[0040] 104, adaptation port;

[0041] 105, expansion port;

[0042] 106, communication device;

[0043] 107, I / O interface;

[0044] 108, OBD port;

[0045] 108-1, 108-2, 108-3, 108-4, 108-5, 108-6, 108-7, 108-8, 108-9, 108-10, 108-11, 108-12, 108-13, 108-14, 108-15, 108-16, interface;

[0046] 109, DT 3 pin port;

[0047] 109-A, 109-B, 109-C, interface;

[0048] 110, RS232\485 port;

[0049] 110-1, 110-2, 110-3, 110-4, 110-5, 110-6, 110-7, 110-8, 110-9, interface;

[0050] 111, AMP 5 pin port;

[0051] 111-1, 111-2, 111-3, 111-4, 111-5, interface;

[0052] 112, DTP 6-pin port;

[0053] 112-1, 112-2, 112-3, 112-4, 112-5, 112-6, interface;

[0054] 113, AMP 6-pin port;

[0055] 113-1, 113-2, 113-3, 113-4, 113-5, 113-6, interface;

[0056] 200, remote support platform. DETAILED DESCRIPTION

[0057] The principles and spirits of the present application will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are given only to enable those skilled in the art to better understand and implement the present application, and do not limit the scope of the present application in any way. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to convey the scope of the present disclosure to those skilled in the art.

[0058] According to the embodiments of the present application, a kind of electric drive passenger car high voltage system fault detection device is proposed, it is related to vehicle repair technical field.The present application is the improvement scheme proposed to electric drive passenger car high voltage system fault detection, for the network environment test of electric drive passenger car three electric systems and auxiliary system, comprehensive diagnosis, the connection path under independent diagnosis mode, and the connection path of on-site diagnosis and remote technical support is optimized and improved, realize the integrated online test of multiple different brands, finally realize the real-time storage, analysis and management of vehicle high voltage system comprehensive data.

[0059] The principles and spirits of the present application will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are given only to enable those skilled in the art to better understand and implement the present application, and do not limit the scope of the present application in any way. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to convey the scope of the present disclosure to those skilled in the art.

[0060] Figure 1 It is the electric drive passenger car high voltage system fault detection device architecture schematic diagram of an embodiment of the present application.As shown in Figure 1 The device comprises:

[0061] Touch screen 101, detection device 102, storage device 103, adaptive port 104 and expansion port 105;

[0062] The detection device 102 is connected with the touch screen 101 and the adaptive port 104, and is in communication connection with the remote support platform 200, for receiving the operation data of the high-voltage system of the electric drive bus sent by the adaptive port 104, detecting the operation data, obtaining a detection result, storing the operation data and the detection result to the storage device 103, and sending to the touch screen 101 for display; when accessing the remote support platform 200, the operation data is sent to the remote support platform 200, the control instruction returned by the remote support platform 200 is received, the control instruction is displayed on the touch screen 101, and is sent to the adaptive port 104;

[0063] In actual application scenarios, the detection device 102 can adopt a "high pass MSM8953, 2.0GHz, eight-core" processor.

[0064] The touch screen 101 is used for displaying the operation data, the detection result and the control instruction.

[0065] The storage device 103 is used for storing the operation data and the detection result.

[0066] The adaptive port 104 is connected with the expansion port 105, is configured with a high-voltage system diagnosis protocol of the electric drive bus, is used for receiving the operation data of the high-voltage system of the electric drive bus, and sends the control instruction to the high-voltage system of the electric drive bus.

[0067] The expansion port 105 is connected with the connection port of the electric drive bus high-voltage system, and is used for adapting to connect various types of electric drive bus high-voltage systems.

[0068] Reference Figure 2 It is the electric drive bus high-voltage system fault detection device architecture schematic diagram of another embodiment of the utility model. As shown in Figure 2 The communication device 106 is connected with the detection device 102.

[0069] When the on-site technical personnel needs remote support, the account and password are input through the touch screen 101 to complete identity authentication; after identity authentication, the remote support platform 200 is accessed through the communication device 106.

[0070] By using the remote support platform 200, the vehicle can be remotely controlled and the bus fault diagnosis can be performed.

[0071] Specifically, the communication device 106 is in communication connection with the remote support platform 200 through a 4G / 5G network.

[0072] Reference Figure 3Is the relationship diagram of the adaptive port of the embodiment of the utility model, as shown in the figure, Figure 3 The adaptive port 104 can access the detection device 102 in different ways according to needs.

[0073] Specifically, the adaptive port 104 connects the detection device 102 through the I / O interface 107, and this way adopts hard-wire connection for diagnosis.

[0074] The adaptive port 104 connects the detection device 102 through the Wi-Fi channel, and this way adopts wireless connection, and the connection mode is more suitable for large electric bus high-voltage system diagnosis.

[0075] The adaptive port 104 is a vehicle high-voltage system diagnosis adapter, and supports CAN 2.0 / CAN FD / DoIP and other diagnosis protocols.

[0076] In actual application scenarios, the touch screen 101, the detection device 102 and the storage device 103 can be considered as a field diagnosis software support platform, which is used for high-voltage system diagnosis, system upgrade, user management, interface component, file management, Wi-Fi management, decompression decryption and communication management and the like.

[0077] Reference Figure 4 Is the relationship diagram of the expansion port of the embodiment of the utility model, as shown in the figure, Figure 4 The expansion port 105 is used for connecting a plurality of ports including at least the OBD port 108, the DT 3-pin port 109, the RS232\485 port 110, the AMP 5-pin port 111 and the DTP 6-pin port 112.

[0078] The RS232\485 port 110 additionally connects the AMP 6-pin port 113 according to needs.

[0079] In an embodiment, the storage device 103 adopts a random access memory and a read-only memory.

[0080] In actual application scenarios, the detection device 102 detects whether the running data is within the safety range corresponding to the fault threshold according to the set fault threshold, and if the safety range is exceeded, it is determined that a fault occurs, and a detection result is obtained.

[0081] In order to more clearly explain the above electric drive bus high-voltage system fault detection device, a specific embodiment will be combined to be described in detail.

[0082] Reference Figure 5 Is the overall architecture diagram of the fault detection device of the embodiment of the utility model, as shown in the figure, Figure 5As shown, when the vehicle needs to be diagnosed, according to the test items, assemblies, networks or calibration, etc., the extended port 105 is combined with each port in a directional manner, and after the combination is completed, the test vehicle is connected.

[0083] The adapter port 104 is connected with the extended port 105, and the initial diagnosis test requirement is completed.

[0084] Due to the particularity of the electric drive bus (the overall size is relatively large, the shortest is 6 meters, and the longest is 18 meters), when different test items are tested, the adapter port 104 is connected with the detection device 102 according to different test items.

[0085] For general vehicle data reading and network environment testing, the tester is connected for online testing at the fixed point of the vehicle, and at this time, the adapter port 104 is connected with the detection device 102 through the I / O interface 107.

[0086] When the diagnosis test connection part is far away from the test assembly, and the tester must observe or listen in a diagnosis manner, the adapter port 104 can be connected with the detection device 102 through a Wi-Fi channel to realize wireless connection.

[0087] The man-machine interaction is completed through the touch screen 101, the detection device 102 and the storage device 103, and when remote technical support is needed, the detection device 102 can be connected with the remote support platform 200 through an account and a password to realize remote diagnosis and assistance.

[0088] In an embodiment, the extended port can be combined with various interfaces, for example, an OBD port, a DT3 pin port, an RS232\485 port, an AMP 5 pin port and a DTP 6 pin port.

[0089] OBD port:

[0090] The extended port 105 is combined with the OBD port 108 to complete the hard connection of the equipment and the vehicle, and is used for vehicle body network and power network environment testing and node fault diagnosis. Figure 6 is a schematic diagram of the OBD port of an embodiment of the utility model, the first row of interfaces are 108-16, 108-15, 108-14, 108-13, 108-12, 108-11, 108-10, 108-9 in turn, the second row of interfaces are 108-8, 108-7, 108-6, 108-5, 108-4, 108-3, 108-2, 108-1 in turn.The specific definition of the OBD port is shown in Table 1.The ones not appearing in the table are defined according to the actual situation, and there is no specific definition in the embodiment.

[0091] Table 1

[0092]

[0093] DT 3 pin port:

[0094] The expansion port 105 and the DT 3 pin port 109 are combined to complete the hard connection of the device and the vehicle, so as to test different network environments separately. Figure 7 is a schematic diagram of the DT 3 pin port of an embodiment of the utility model, and the specific definition is shown in Table 2.

[0095] Table 2

[0096]

[0097] RS232\485 port, AMP 6 pin port:

[0098] The expansion port 105 and the RS232\485 port 110 (and the AMP 6 pin port 113) are combined to complete the hard connection of the device and the vehicle, so as to test, write and calibrate different manufacturers' motor systems. Figure 8 is a schematic diagram of the RS232\485 port of an embodiment of the utility model, the first row of interfaces are 110-6, 110-7, 110-8, 110-9 in turn, the second row of interfaces are 110-1, 110-2, 110-3, 110-4, 110-5 in turn, and the specific definition is shown in Table 3. Those not appearing in the table are defined according to the actual situation, and there is no specific definition in the embodiment.

[0099] Table 3

[0100]

[0101] Reference Figure 9 is a schematic diagram of the AMP 6 pin port of an embodiment of the utility model, and the interfaces are 113-1, 113-2, 113-3, 113-4, 113-5, 113-6 in turn, and the specific definition is shown in Table 4.

[0102] Table 4

[0103]

[0104] AMP 5 pin port, DTP 6 pin port:

[0105] The expansion port 105 and the AMP 5 pin port 111 and the DTP 6 pin port 112 are combined to complete the hard connection of the device and the vehicle, so as to diagnose, test, write and calibrate different manufacturers' lithium ion power battery systems and the network environment of the power battery inner network. Figure 10is a schematic diagram of the AMP 5-pin port of one embodiment of the utility model, the interface is 111-5, 111-4, 111-3, 111-2, 111-1 in turn, and the specific definition is shown in table 5. Figure 11 is the schematic diagram of the DTP 6-pin port of one embodiment of the utility model, the first row interface is 112-1, 112-2, 112-3 in turn, the second row interface is 112-4, 112-5, 112-6 in turn, and the specific definition is shown in table 6.

[0106] Table 5

[0107]

[0108] Table 6

[0109]

[0110] At present, electric drive bus vehicles are widely used, and for the actual operation state and maintenance ability of the high-voltage electric part of the electric drive vehicle, the public transport industry mainly relies on external units such as vehicle manufacturers and various configuration assembly manufacturers for assistance, and has not formed its own monitoring ability for the state of the high-voltage electric part of the electric drive vehicle.The utility model realizes the evaluation of the current operation state of the high-voltage electric part of the vehicle by testing and data analysis of the high-voltage electric part of the electric drive vehicle, so as to enable enterprises to establish their own monitoring ability for the operation state of the high-voltage electric part of the electric drive vehicle, and enable enterprises to further master this new technology of the high-voltage electric part of the electric drive vehicle, and improve the ability of the enterprises to maintain the electric drive vehicle.

[0111] In view of the consideration of the safety characteristics of the high-voltage electric part of the electric drive vehicle by enterprises, especially the occurrence of electric drive vehicle safety accidents in recent years, the monitoring expectation of the actual operation state of the electric drive vehicle by enterprises is very high, therefore, having a set of independently developed comprehensive detection equipment for the high-voltage system of the electric drive bus will become a necessary condition for the public transport industry to ensure the safe operation of the electric drive vehicle.

[0112] The electric drive bus high pressure system fault detection device provided by the utility model comprises: a touch screen, a detection device, a storage device, an adaptive port and an expansion port; the detection device is connected with the touch screen and the adaptive port, and is in communication connection with a remote support platform, is used for receiving the operation data of the electric drive bus high pressure system sent by the adaptive port, detecting the operation data, obtaining a detection result, storing the operation data and the detection result to the storage device, and sending to the touch screen for display; when accessing the remote support platform, the operation data is sent to the remote support platform, the control instruction returned by the remote support platform is received, the control instruction is displayed on the touch screen, and is sent to the adaptive port; the touch screen is used for displaying the operation data, the detection result and the control instruction; the storage device is used for storing the operation data and the detection result; the adaptive port is connected with the expansion port, is configured with the electric drive bus high pressure system diagnosis protocol, is used for receiving the operation data of the electric drive bus high pressure system, and sends the control instruction to the electric drive bus high pressure system; the expansion port is connected with the connection port of a plurality of electric drive bus high pressure systems, is used for adaptively connecting a plurality of types of electric drive bus high pressure systems, and the electric drive bus high pressure system fault detection device of the utility model can realize the comprehensive detection of the whole vehicle high pressure system of the electric drive bus, can quickly lock the fault direction, improves the fault diagnosis ability of the electromechanical maintenance personnel and the efficiency of problem processing, so as to reduce the labor intensity of workers, reduce the misjudgment and mischange of materials, and reduce unnecessary waste. At the same time, the detection data also provides a reference basis for vehicle maintenance, improves the vehicle maintenance level. It has important significance for ensuring the safe use of electric drive vehicles and the safe operation of new energy vehicles, and with the wide application of electric drive vehicles, the demand for the technology in the market will gradually increase, so it will have certain social and economic benefits.

[0113] Finally, it should be noted that: the above-described embodiments are merely specific embodiments of the utility model, which are used to illustrate the technical solutions of the utility model, rather than limit them, and the protection scope of the utility model is not limited to this. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily think of changes to the technical solutions recorded in the foregoing embodiments within the technical range disclosed by the utility model, or make equivalent replacement to some technical features; and these modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and range of the technical solutions of the embodiments of the utility model, and all should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. An electrically driven bus high pressure system fault detection device, characterized in that, The application relates to a remote support platform for electric drive buses, which comprises a touch screen, a detection device, a storage device, an adaptive port and an expansion port. The detection device is connected with the touch screen and the adaptive port and is in communication connection with a remote support platform, is used for receiving operation data of a high-voltage system of an electric drive bus sent by the adaptive port, detecting the operation data, obtaining a detection result, storing the operation data and the detection result into the storage device, and sending the operation data and the detection result to the touch screen for display; when the remote support platform is accessed, the operation data is sent to the remote support platform, a control instruction returned by the remote support platform is received, the control instruction is displayed on the touch screen, and the control instruction is sent to the adaptive port. The touch screen is used for displaying the operation data, the detection result and the control instruction. The storage device is used for storing the operation data and the detection result. The adaptive port is connected with the expansion port, is configured with a high-voltage system diagnosis protocol of an electric drive bus, is used for receiving operation data of a high-voltage system of an electric drive bus, and sends the control instruction to the high-voltage system of the electric drive bus. The expansion port is connected with connection ports of various high-voltage systems of electric drive buses and is used for adaptively connecting various types of high-voltage systems of electric drive buses. The expansion port is used for connecting various ports including an OBD port, a DT 3-pin port, an RS232\485 port, an AMP 5-pin port and a DTP 6-pin port.

2. The electrically driven motor coach high pressure system fault detection apparatus of claim 1, wherein, The RS232\485 port is additionally connected with an AMP 6-pin port according to needs.

3. The electrically driven motor coach high pressure system fault detection apparatus of claim 2, wherein, The adaptive port supports diagnosis protocols including CAN 2.0 / CAN FD / DoIP.

4. The electrically driven motor coach high pressure system fault detection apparatus of claim 1, wherein, The adaptive port is connected with the detection device through an I / O interface.

5. The electrically driven motor coach high pressure system fault detection apparatus of claim 1, wherein, The adaptive port is connected with the detection device through a Wi-Fi channel.

6. The electrically driven motor coach high pressure system fault detection apparatus of claim 1, wherein, The storage device adopts a random access memory and a read-only memory.

7. The electric drive bus high pressure system fault detection apparatus of claim 1, wherein, The application further comprises a communication device, and the communication device is connected with the detection device.

8. The electrically driven motor coach high pressure system fault detection apparatus of claim 1, wherein, When a field technician needs remote support, identity authentication is completed through the touch screen; after the identity authentication is passed, the communication device accesses a remote support platform. The communication device is in communication connection with the remote support platform through a 4G / 5G network.

9. The electric drive bus high voltage system fault detection apparatus of claim 8, wherein, ​

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