External automobile diagnosis device based on ergonomics and diagnosis system thereof

Abstract

The utility model discloses an external automobile diagnosis device based on ergonomics and a diagnosis system thereof, the diagnosis device comprises a patch cord and a test platform, the patch cord comprises a controller plug and a wire harness plug, the controller plug is provided with a plurality of first pins matched with a controller interface, and the wire harness plug is provided with a plurality of second pins matched with the controller interface. The wire harness plug is provided with a plurality of second pins matched with a whole vehicle wire harness interface; the test platform is provided with a plurality of detection holes, the first pins of the controller plug are respectively connected with the detection holes, and the second pins of the wire harness plug are respectively connected with the detection holes connected with the first pins corresponding to the second pins. Signals are led out to the test platform through the patch cord, normal work of electronic components can be kept, meanwhile, measurement can be carried out through the detection hole, a wire insulation layer and a plug terminal hole are prevented from being damaged, man-machine engineering comfort is improved, and working hours are saved.

Description

Technical Field

[0001] This utility model relates to the field of automotive diagnostic technology, and more specifically, to an external automotive diagnostic device and its diagnostic system based on human factors engineering. Background Technology

[0002] Many vehicle modules and wiring harnesses are located in confined spaces. When a fault occurs, the controller needs to be removed, the insulation of the wiring needs to be damaged, and wiring measurements need to be taken. Disassembling and reassembling modules is difficult during fault diagnosis. Inconvenient measurement often leads to long repair times, damage to vehicle wiring, and ergonomic issues during vehicle wiring inspection, ultimately affecting the overall quality of the vehicle.

[0003] Specifically, during fault diagnosis, the following problems were found when the module and wiring harness were removed and measured in a confined space:

[0004] 1. Disassembling modules and wires can easily damage parts.

[0005] 2. When checking for open circuits, inserting the test probes into the female end of the plug can easily enlarge the terminal hole, leading to poor contact. This can complicate fault diagnosis and cause serious complaints when it reaches after-sales service. The test probes cannot be fixed when inserted into the male end of the plug.

[0006] 3. During circuit inspection, the insulation layer of the wire harness needs to be damaged to expose the conductor. The test probes are then connected to measure the relevant signals to verify their reliability. Damage to the wire harness may pose an insulation hazard.

[0007] 4. The body is always lying in a small space during operation, which is not in line with ergonomics. Utility Model Content

[0008] To address at least one of the aforementioned technical problems, this utility model provides an external automotive diagnostic device and its diagnostic system based on human factors engineering. The device leads signals to a test platform via an adapter cable, and then measures the signals through the test platform's detection holes, thus avoiding damage to the wire insulation layer and plug terminal holes.

[0009] The technical problem solved by this utility model is addressed by the following technical solution:

[0010] An external automotive diagnostic device based on human factors engineering includes an adapter cable and a test platform. The adapter cable includes a controller plug and a wiring harness plug. The controller plug has multiple first pins adapted to a controller interface, and the wiring harness plug has multiple second pins adapted to a vehicle wiring harness interface. The test platform is provided with multiple test holes. Each first pin of the controller plug is connected to a test hole, and each second pin of the wiring harness plug is connected to a test hole to which the corresponding first pin is connected.

[0011] Furthermore, each of the aforementioned detection holes is provided with a first identifier to facilitate correspondence with each electronic component.

[0012] Furthermore, the diagnostic device also includes a circuit diagram, which has a description of the correspondence between the first identifier and the wiring harness markings of the electronic components, for finding the correspondence between the electronic components and the detection holes.

[0013] Furthermore, the first identifier of each detection hole is the same as the wiring harness mark of each electronic component, making it convenient and quick to find the correspondence between electronic components and detection holes.

[0014] Furthermore, a slide wire resistor is provided between the first pin and the second pin for adjusting the voltage.

[0015] Furthermore, each slide wire resistor is equipped with a second identifier corresponding to the detection hole it is connected to, which makes it easy to find the slide wire resistor corresponding to the detection hole.

[0016] Furthermore, the maximum resistance value of the slide wire resistor is set to 1000-2000Ω.

[0017] Furthermore, the diagnostic device also includes a short-circuit connector, which includes a plurality of conductive connectors; each connector includes a terminal and a socket, the terminal being adapted to a detection hole, and the socket being disposed above the terminal and conductive to the terminal, for creating a short-circuit fault.

[0018] Furthermore, each connector is connected by a flexible wire, allowing adjustment of the distance between the connectors to facilitate insertion into the detection hole.

[0019] Furthermore, an external automotive diagnostic system based on human factors engineering includes the diagnostic device described above, as well as a controller and a vehicle wiring harness, wherein the controller plug is connected to a controller interface and the wiring harness plug is connected to a vehicle wiring harness interface.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] This diagnostic device leads signals to the test platform via an adapter cable, ensuring the normal operation of electronic components. Simultaneously, measurements can be taken through the test platform's detection holes, avoiding damage to wire insulation and plug terminal holes, thus preventing damage to the vehicle's controller and wiring during fault diagnosis. It also avoids requiring personnel to lie in a confined space for extended periods, improving ergonomic comfort. Furthermore, it reduces the disassembly and assembly of modules and wiring harnesses, saving time. Moreover, the device is small and portable. Attached Figure Description

[0022] To better understand the above and other objects, features, advantages, and functions of this utility model, reference can be made to the embodiments shown in the accompanying drawings. The same reference numerals in the drawings refer to the same parts. Those skilled in the art should understand that the drawings are intended to schematically illustrate preferred embodiments of this utility model and do not limit the scope of this utility model in any way; the parts in the drawings are not drawn to scale.

[0023] Figure 1 This is a schematic diagram of the external automotive diagnostic device based on human factors engineering according to this utility model.

[0024] Figure 2 This is a schematic diagram of the short-circuit connector structure of this utility model.

[0025] Figure 3 This is a schematic diagram of the external automotive diagnostic system based on human factors engineering according to this utility model.

[0026] In the diagram: 1-Adapter cable; 11-Controller plug; 111-First pin; 12-Wire harness plug; 121-Second pin; 2-Test platform; 21-Detection hole; 22-Slide wire resistor; 3-Short circuit connector; 31-Connector; 311-Terminal; 312-Socket; 32-Flexible wire; 4-Controller; 5-Vehicle wiring harness; 6-Electronic component. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, exemplary embodiments of this disclosure are described below with reference to the accompanying drawings, including various details of the embodiments of this disclosure to aid understanding. These should be considered merely exemplary. Therefore, those skilled in the art should recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this disclosure. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0028] In the description of this utility model, it should be noted that the term "comprising" and its variations indicate an open-ended inclusion, i.e., "including but not limited to". The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. Furthermore, the terms "connection" and "conduction" refer to the electrical signal transmission connection between different components via physical lines such as PCB copper foil or wires.

[0029] On the one hand, this utility model provides an external automotive diagnostic device based on ergonomics, referring to... Figure 1 and Figure 3As shown, the system includes an adapter cable 1 and a test platform 2. The adapter cable 1 includes a controller plug 11 and a wiring harness plug 12. The controller plug 11 has multiple first pins 111 that are adapted to the interface of the controller 4, and the controller plug 11 can be plugged into the interface of the controller 4. The wiring harness plug 12 has multiple second pins 121 that are adapted to the interface of the vehicle wiring harness 5, and the wiring harness plug 12 can be plugged into the interface of the vehicle wiring harness 5. The test platform 2 is provided with multiple detection holes 21. Each first pin 111 of the controller plug 11 is connected to each detection hole 21, and each first pin 111 is connected and conductive with the detection hole 21. Each second pin 121 of the wiring harness plug 12 is connected to the detection hole 21 that is connected to the first pin 111 corresponding to the second pin 121, and each second pin 121 is connected and conductive with the detection hole 21. The first pin 111 and the second pin 121 connected and conductive with the same detection hole 21 correspond to each other, so that the first pin 111, the second pin 121 corresponding to the first pin 111, and the detection hole 21 are connected and conductive.

[0030] Preferably, the first pin 111 and the second pin 121 can be directly connected to the detection hole 21, or they can be connected to a conductive element such as a conductive sheet, and then connected to the detection hole 21 through the conductive sheet. There is no limitation here, as long as the first pin 111, the second pin 121 and the detection hole 21 can be kept connected and conductive.

[0031] In use, disconnect the controller 4 from the vehicle wiring harness 5, plug the wiring harness plug 12 of the adapter cable 1 into the vehicle wiring harness 5 interface, and plug the controller plug 11 into the controller 4 interface, thereby connecting the controller 4 and the vehicle wiring harness 5 to the diagnostic device. The signal from the electronic component 6 connected to the vehicle wiring harness 5 is introduced into the detection hole 21 from the second pin 121, and then led out from the detection hole 21 to the first pin 111, thus connecting the electronic component 6 to the controller 4 and maintaining normal signal transmission between the electronic component 6 and the controller 4. Simultaneously, with the signal introduced into the detection hole 21, when the controller 4 and electronic component 6 are working normally, the signal can be measured using an oscilloscope, multimeter, or other testing instruments through the detection hole 21.

[0032] In some embodiments, each of the detection holes 21 is provided with a first identifier to facilitate correspondence with each electronic component 6. For example, each detection hole 21 may be marked with a numerical identifier, a letter identifier, or a combination of letters and numbers.

[0033] In some embodiments, the diagnostic device further includes a circuit diagram showing the correspondence between a first identifier and the wiring harness markings of the electronic components 6. The circuit diagram defines and marks each wiring harness of each electronic component 6, with each wiring harness of the electronic component 6 corresponding one-to-one with each second pin 121, and each detection hole 21 corresponding one-to-one with each second pin 121. Based on the wiring harness markings of the electronic components 6, the detection hole 21 corresponding to each wiring harness marking of the electronic component 6 can be located. In this way, the corresponding detection hole 21 can be selected for testing based on the pin definitions in the circuit diagram, avoiding the connection of incorrect detection holes 21.

[0034] Preferably, the first identifier of each detection hole 21 is the same as the wiring harness marking of each electronic component 6, making it easier and faster to find the correspondence between the electronic component 6 and the detection hole 21. For example, if the wiring harness markings of the camshaft sensor are found to be A54 and A55 through the circuit diagram, then the detection holes 21 connected to the second pins 121 corresponding to wiring harnesses A54 and A55 are marked as A54 and A55. In use, an oscilloscope or multimeter is connected to the detection holes 21 A54 and A55 for measurement, and the signal waveform and voltage of the camshaft sensor can be detected.

[0035] In some embodiments, a sliding resistor 22 is provided between the first pin 111 and the second pin 121. The sliding resistor 22 can be provided on the signal lines of sensors whose voltage needs to be adjusted, as needed. For example, the sliding resistor 22 can be provided on the wiring harnesses of engine-related sensors such as camshaft sensors, ignition coil sensors, and fuel pressure sensors. Preferably, the sliding resistor 22 is integrated on the test platform 2 and can be connected in series between the first pin 111 and the detection hole 21, or in series between the second pin 121 and the detection hole 21. By adjusting the resistance value connected to the sliding resistor 22, abnormal voltage signals can be generated, and the signal waveforms and voltages corresponding to each abnormal voltage can be detected to diagnose the controller 4's recognition of abnormal signals.

[0036] Each slide wire resistor 22 is provided with a second identifier corresponding to the detection hole 21 connected to it. Preferably, the second identifier is the same as the first identifier, which can facilitate the identification of the slide wire resistor 22 corresponding to the detection hole 21. The maximum resistance value of the slide wire resistor 22 can be set to 1000-2000Ω. For example, the maximum resistance value of the slide wire resistor 22 can be set to 1000Ω, 1100Ω, 1200Ω, 1300Ω, 1400Ω, 1500Ω, 1600Ω, 1700Ω, 1800Ω, 1900Ω, or 2000Ω, etc.

[0037] In some embodiments, such as Figure 2As shown, the diagnostic device further includes a short-circuit connector 3, which includes multiple conductive connectors 31. Each connector 31 includes a terminal 311 and a socket 312. The terminal 311 is adapted to the detection hole 21, and the socket 312 is located above the terminal 311 and is conductive to the terminal 311. Inserting two connectors 31 of the short-circuit connector 3 into the detection hole 21 will connect the two detection holes 21, creating a short-circuit fault. Specifically, by inserting the terminal 311 into the detection hole 21 and then inserting an oscilloscope plug or multimeter probe into the socket 312, a short circuit can be created in the wiring harness, and the signal can be detected using a testing instrument. The connectors 31 can be configured as two, three, four, etc., all of which are mutually conductive. As needed, the connectors 31 can be inserted into the corresponding detection holes 21 to create a short circuit between the wiring harnesses.

[0038] Preferably, each of the connectors 31 is connected by a flexible wire 32, which allows the distance between each connector 31 to be adjusted, making it convenient for the connector 31 to be inserted into the detection hole 21.

[0039] On the other hand, this utility model also provides an external automotive diagnostic system based on human factors engineering, such as... Figure 3 As shown, the device includes the diagnostic device described above, as well as a controller 4 and a vehicle wiring harness 5. The controller plug 11 is connected to the controller 4 interface, and the wiring harness plug 12 is connected to the vehicle wiring harness 5 interface.

[0040] This diagnostic device leads signals to test platform 2 for measurement without affecting the original vehicle signal control, avoiding damage to wire insulation and plug terminal holes, thus ensuring that the vehicle's controller 4 and wiring are not damaged during fault diagnosis. Through test port 21, oscilloscopes, multimeters, and other testing instruments can be connected to display the signals, providing a clear view for fault case training. Test platform 2 can be placed away from the controller 4 interface and the vehicle wiring harness 5 interface, in a convenient location, avoiding prolonged periods of lying in confined spaces for measurement, improving ergonomic comfort and reducing labor intensity. After connecting controller 4 and vehicle wiring harness 5 to the diagnostic device, signals from various electronic components 6 can be measured, reducing the need for module and wiring harness disassembly and assembly, saving time. This diagnostic device is small, portable, and has significant potential for widespread adoption in the automotive repair field.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ergonomically based external automotive diagnostic device, characterized by, The diagnostic device comprises a test platform and a connecting line, the connecting line comprises a controller plug and a wire harness plug, the controller plug has a plurality of first pins adapted to a controller interface, the wire harness plug has a plurality of second pins adapted to a vehicle wire harness interface; the test platform is provided with a plurality of detection holes, each first pin of the controller plug is connected to each detection hole respectively, and each second pin of the wire harness plug is connected to the detection hole connected with the corresponding first pin.

2. The ergonomic, off-board vehicle diagnostic device of claim 1, wherein, Each detection hole is provided with a first mark.

3. The ergonomic, off-board vehicle diagnostic device of claim 2, wherein, The diagnostic device further comprises a circuit drawing paper, and the circuit drawing paper has a first mark corresponding to a wire harness mark of an electronic component.

4. The ergonomic, off-board vehicle diagnostic device of claim 3, wherein, The first mark of each detection hole is the same as the wire harness mark of each electronic component.

5. The ergonomic, off-board vehicle diagnostic device of claim 1, wherein, The first pin and the second pin are provided with a slide wire resistance therebetween.

6. The ergonomic, off-board vehicle diagnostic device of claim 5, wherein, Each slide wire resistance is provided with a second mark corresponding to the detection hole connected therewith.

7. The ergonomic, off-board vehicle diagnostic device of claim 5, wherein, The maximum resistance of the slide wire resistance is set to 1000-2000Ω.

8. The ergonomic, off-board vehicle diagnostic device of claim 1, wherein, The diagnostic device further comprises a short circuit connector, the short circuit connector comprises a plurality of conductive connecting heads; each connecting head comprises a connecting post and a jack, the connecting post is adapted to the detection hole, and the jack is arranged above the connecting post and is conductive with the connecting post.

9. The ergonomic, off-board vehicle diagnostic device of claim 8, wherein, Each connecting head is conductive through a soft wire.

10. An ergonomically based external automotive diagnostic system, characterized by, The diagnostic device comprises a controller and a vehicle wire harness, the controller plug is connected to the controller interface, and the wire harness plug is connected to the vehicle wire harness interface.

Images