Diagnosis connection device and vehicle diagnosis system

Abstract

The utility model relates to the technical field of equipment testing, in particular to a diagnosis connection device and a vehicle diagnosis system. The diagnosis connection device comprises at least two diagnosis interfaces, at least two test interfaces and an interface switching module. The diagnosis interface is used for being connected with an equipment interface on equipment to be tested; the test interface is used for connecting test equipment; the interface switching module is respectively connected with each diagnosis interface and each test interface; the interface switching module is used for switching the communication relation between the diagnosis interface and the test interface. The method can reduce the tedious degree of the test process, and reduces the damage rate of equipment at the same time.

Description

Technical Field

[0001] The present application relates to the technical field of equipment testing, and in particular to a diagnostic connection device and a vehicle diagnostic system. Background Art

[0002] For equipment such as vehicles, the testing process of the equipment in the production line is indispensable. At present, when testing vehicles and other equipment, a commonly used testing method is to use an adapter cable to connect the test equipment to the device under test. For example, when testing a vehicle, an adapter cable for the diagnostic port of the vehicle's On-Board Diagnostics (OBD) is usually used to connect the vehicle's OBD diagnostic port and the test equipment, so as to read the vehicle's controller area network (CAN) bus message and fault status to achieve vehicle testing. However, with the development of technology, the device under test can provide multiple interfaces for multiple tests, but when using existing adapter cables to connect the device under test and the test equipment, it is only possible to connect different device interfaces on the device under test by constantly plugging and unplugging the diagnostic interface on the adapter cable used to connect the vehicle to the device under test, thereby meeting multiple testing requirements. Therefore, the above-mentioned testing method causes the test process to be cumbersome to operate, and the constant plugging and unplugging of the interface increases the possibility of equipment damage. Utility Model Content

[0003] Based on the above-mentioned defects and shortcomings of the prior art, the present application proposes a diagnostic connection device and a vehicle diagnostic system, which can reduce the complexity of the testing process and reduce the equipment damage rate.

[0004] According to a first aspect of an embodiment of the present application, a diagnostic connection device is provided, comprising: at least two diagnostic interfaces, at least two test interfaces and an interface switching module; the diagnostic interface is used to connect to a device interface on a device to be tested; the test interface is used to connect to a test device; the interface switching module is respectively connected to each of the diagnostic interfaces and each of the test interfaces; the interface switching module is used to switch the connectivity relationship between the diagnostic interface and the test interface.

[0005] According to the diagnostic connection device provided in the first aspect of the embodiment of the present application, the interface switching module includes at least two rotary switches, and the rotary switches correspond to the test interfaces one by one; the test interface is connected to any one of the diagnostic interfaces through the corresponding rotary switch; and the rotary switch is used to switch the connectivity relationship between the corresponding test interface and the diagnostic interface.

[0006] According to the diagnostic connection device provided in the first aspect of the embodiment of the present application, the test interface includes a first test pin and a second test pin; the test interface is connected to the rotary switch through the first test pin and the second test pin.

[0007] According to the diagnostic connection device provided in the first aspect of the embodiment of the present application, the rotary switch includes a rotating cover, a first conductive unit and a second conductive unit; the first test pin is connected to the first fixed contact of the first conductive unit, and the second test pin is connected to the second fixed contact of the second conductive unit.

[0008] According to the diagnostic connection device provided in the first aspect of the embodiment of the present application, the first adjustable contact of the first conductive unit corresponds one-to-one to the diagnostic interface; the second adjustable contact of the second conductive unit corresponds one-to-one to the diagnostic interface; and the rotating cover is used to drive the first adjustable contact and the second adjustable contact to switch synchronously.

[0009] According to the diagnostic connection device provided in the first aspect of the embodiment of the present application, the diagnostic interface includes diagnostic pins, and the number of the diagnostic pins is greater than or equal to twice the number of the test interfaces; for each of the rotary switches: the first adjustable contacts of the first conductive unit are respectively connected to the corresponding diagnostic pins of the diagnostic interface, and the second adjustable contacts of the second conductive unit are respectively connected to the corresponding diagnostic pins of the diagnostic interface; one diagnostic pin is connected to one first adjustable contact, or one diagnostic pin is connected to one second adjustable contact.

[0010] According to the diagnostic connection device provided in the first aspect of the embodiment of the present application, the device under test includes at least one device interface; one device interface is connected to one diagnostic interface.

[0011] According to the diagnostic connection device provided in the first aspect of the embodiment of the present application, the test interface includes a D-type data interface connector; the diagnostic interface includes a diagnostic port of an on-board automatic diagnostic system.

[0012] According to the diagnostic connection device provided in the first aspect of the embodiment of the present application, the test device includes a diagnostic configuration panel; the diagnostic configuration panel is used to configure diagnostic parameters through the test interface.

[0013] According to a second aspect of an embodiment of the present application, a vehicle diagnostic system is provided, comprising a diagnostic device and a diagnostic connection device as described in any one of the above items.

[0014] In an embodiment of the present application, the diagnostic connection device includes at least two diagnostic interfaces, at least two test interfaces and an interface switching module; each test interface is connected to any diagnostic interface through the interface switching module; the diagnostic interface is used to connect the device interface of the device to be tested; the test interface is used to connect the test device; the interface switching module is used to switch the connectivity relationship between the diagnostic interface and the test interface. At least two diagnostic interfaces in the diagnostic connection device can be connected to multiple device interfaces on the device to be tested at the same time, and the interface switching module can flexibly switch the connectivity relationship between the diagnostic interface and the test interface. That is to say, when multiple diagnostic interfaces are connected to the device to be tested at the same time, the user can flexibly adjust the diagnostic interface to which the test interface is actually connected through the interface switching module, thereby flexibly adjusting the actual connection mode between the device to be tested and the test device. If the user ends the process of testing the device to be tested through one or several diagnostic interfaces, the user can directly connect the test interface to other diagnostic interfaces through the interface switching module, but in this process, the user does not need to unplug the diagnostic interface to change the physical connection with the device to be tested. Therefore, the diagnostic connection device provided by the present application reduces the cumbersomeness of the test process, reduces the number of plugging and unplugging of the diagnostic interface, and thus reduces the damage rate of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0016] Figure 1 One of the structural connection diagrams of a diagnostic connection device provided in an embodiment of the present application;

[0017] Figure 2 A second structural connection diagram of a diagnostic connection device provided in an embodiment of the present application;

[0018] Figure 3 A third structural connection diagram of a diagnostic connection device provided in an embodiment of the present application;

[0019] Figure 4 A schematic diagram of the connection principle of a diagnostic connection device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] Exemplary Devices

[0022] In order to reduce the complexity of the operation during the process of a vehicle waiting for a device to be tested to enter the toilet, the present application provides a diagnostic connection device, which is used to connect the device to be tested and the test device.

[0023] In one embodiment, the diagnostic connection device includes: at least two diagnostic interfaces, at least two test interfaces and an interface switching module; the diagnostic interface is used to connect to the device interface on the device to be tested; the test interface is used to connect to the test device; the interface switching module is connected to each diagnostic interface and each test interface respectively; the interface switching module is used to switch the connection relationship between each test interface and each diagnostic interface respectively. Figure 1 As shown, diagnostic interface 1, diagnostic interface 2 ... diagnostic interface M are different diagnostic interfaces, and M is the number of diagnostic interfaces; test interface 1, test interface 2 ... test interface N are different test interfaces, and N is the number of test interfaces.

[0024] In this embodiment, the device to be tested is a device waiting to be tested, such as a vehicle. The test device refers to a device that assists the tester in performing the test, such as a diagnostic instrument. The diagnostic connection device serves as an intermediate connection medium to connect the device to be tested and the test device. The device to be tested includes one or more device interfaces, and each device interface can be connected to a diagnostic interface of a diagnostic connection device. The test interface of the diagnostic connection device is connected to the test device. Optionally, based on the working mode in the actual test scenario, the number of test interfaces is consistent with the number of interfaces on the test device, and a diagnostic interface of a diagnostic connection device is connected to an interface on the test device. The interface switching module in the diagnostic connection device can switch the connectivity relationship between the diagnostic interface and the test interface, thereby realizing the actual connectivity relationship between the test device and the device to be tested, and realizing the connection between the test interface on the test device and a specific diagnostic interface based on different test requirements, thereby completing different tests on the device to be tested.

[0025] In this embodiment, the device interface on the device under test can be a device interface that connects different functional systems of the device under test, and different diagnostic interfaces can be connected to different pins in the device interface, thereby connecting to different functional systems in the device under test, and then through different connectivity relationships between multiple test interfaces and multiple diagnostic interfaces, different functional systems of the device under test can be tested. The device interface on the device under test can be multiple interfaces, different device interfaces are connected to different functional systems in the device under test, and at the same time, different device interfaces are connected to different diagnostic interfaces, and then through different connectivity relationships between multiple test interfaces and multiple diagnostic interfaces, different functional systems of the device under test can be tested.

[0026] In this embodiment, the interface switching module is used to switch the many-to-many connectivity relationship between the test interface and the diagnostic interface, that is, for each test interface, the connectivity relationship between each test interface and each diagnostic interface can be switched respectively. The interface switching module can realize the switching function through a switch device, and the switch device can realize the switching function through a mechanical structure, with low structural complexity and can meet the personalized needs of users; the interface switching module can also realize electronic switching through an electronic device, thereby improving the intelligence of the connectivity relationship switching.

[0027] In one embodiment, the device under test includes at least one device interface; one device interface is connected to one diagnostic interface.

[0028] In this embodiment, the device under test includes a plurality of device interfaces, and each device interface corresponds to a functional system of the device under test. If a device interface on the device under test corresponds only to a functional system on the device under test, and a diagnostic test needs to be performed on a functional system on the device under test, at this time, the tester only needs to plug any diagnostic interface in the diagnostic connection device into the device interface of the device under test that needs to be tested. If a diagnostic test needs to be performed based on two or more functional systems on the device under test, and the number of device interfaces on the device under test is less than the number of diagnostic interfaces, then each device interface on the device under test is plugged into a diagnostic interface, and some unconnected diagnostic interfaces are left idle. The test or diagnosis of the device under test is achieved through the connected device interface and the diagnostic interface; when the tester needs to switch the specific connectivity relationship of the diagnostic interface, the connectivity relationship between the diagnostic interface of the plugged device interface and the test interface can be switched through the interface switching module. If it is necessary to perform diagnostic tests based on two or more functional systems on the device under test, and the number of device interfaces on the device under test is equal to the number of diagnostic interfaces, each device interface on the device under test is plugged into a diagnostic interface; when the tester needs to switch the specific connectivity relationship of the diagnostic interface, the interface switching module can be used to switch the connectivity relationship between the diagnostic interface and the test interface. If it is necessary to perform diagnostic tests based on two or more functional systems on the device under test, and the number of device interfaces on the device under test is greater than the number of diagnostic interfaces, each diagnostic interface is plugged into a related device interface on the device under test, and some device interfaces are temporarily idle; when the tester needs to switch the specific connectivity relationship of the diagnostic interface, the interface switching module can be used to switch the connectivity relationship between the diagnostic interface and the test interface; if the tester needs to switch to an idle device interface, the tester can unplug the diagnostic interface that does not need to be connected temporarily, complete the switching of the actual plug-in relationship, and then use the interface switching module to switch to achieve the actual connectivity between the device under test and the test device.

[0029] In this embodiment, based on the multiple diagnostic interfaces in the diagnostic connection device, the devices to be tested with different requirements can be flexibly connected. Even if the device to be tested has only one device interface, the diagnostic connection device provided by this application can still be used. For the multiple device interfaces of the device to be tested, the diagnostic connection device provided by this embodiment can reduce the plugging and unplugging operations on the diagnostic interface. The diagnostic connection device provided by this application is suitable for a variety of devices to be tested and has a variety of usage scenarios, which improves the practicality and flexibility of the diagnostic connection device.

[0030] In one embodiment, the interface switching module includes at least two rotary switches, and the rotary switches correspond to the test interfaces one by one; the test interface is connected to any diagnostic interface through the corresponding rotary switch; the rotary switch is used to switch the connectivity between the corresponding test interface and the diagnostic interface.

[0031] In this embodiment, the cutout switching device is implemented in the form of an optional switch. The rotary switches correspond to the test interfaces one by one, that is, the number of rotary switches is consistent with the number of test interfaces, and each test interface corresponds to a rotary switch. The rotary switch corresponding to the test interface switches the diagnostic interface to be connected by rotating, and each rotation switches to a new diagnostic interface, that is, each test interface can only be connected to one diagnostic interface at the same time.

[0032] In one embodiment, the test interface includes a first test pin and a second test pin; the test interface is connected to the rotary switch via the first test pin and the second test pin.

[0033] In this embodiment, the test interface and the test device can be connected by a common twisted pair cable. In this case, the test interface includes a first test pin and a second test pin. The first test pin and the second test pin are any two different test pins in the test interface. The first test pin and the second test pin are respectively connected to two wires in the twisted pair cable. At the same time, the first test pin and the second test pin are connected to the rotary switch. Through the first test pin and the second test pin, the actual connection between the rotary switch and the test device through the twisted pair cable is realized.

[0034] In one embodiment, the rotary switch includes a first conductive unit and a second conductive unit; the first test pin is connected to a first fixed contact of the first conductive unit, and the second test pin is connected to a second fixed contact of the second conductive unit.

[0035] In this embodiment, each rotary switch includes a first conductive unit and a second conductive unit. The first conductive unit and the second conductive unit can be metal devices with the same structure to achieve the conductive function. The rotary cover can be rotated by touching by the tester, so the rotary cover is made of insulating materials such as plastic to ensure the safety of the personnel. Based on the first test pin and the second test pin included in the test interface, the first test pin is connected to the first fixed contact of the first conductive unit, and the second test pin is connected to the second fixed contact of the second conductive unit, so as to achieve electrical connection between the test interface and the rotary switch.

[0036] In one embodiment, the rotary switch further includes a rotary cover. The first adjustable contact of the first conductive unit corresponds to the diagnostic interface one by one; the second adjustable contact of the second conductive unit corresponds to the diagnostic interface one by one; and the rotary cover is used to drive the first adjustable contact and the second adjustable contact to switch synchronously.

[0037] In this embodiment, the first conductive unit includes a first fixed contact and more than two first adjustable contacts, and the number of the first adjustable contacts is consistent with the number of diagnostic interfaces; the second conductive unit includes a second fixed contact and more than two second adjustable contacts, and the number of the second adjustable contacts is consistent with the number of diagnostic interfaces. When any one of the first adjustable contacts is connected, the connection between the first fixed contact and the connected first adjustable contact is realized; at the same time, when any one of the second adjustable contacts is connected, the connection between the second fixed contact and the connected second adjustable contact is realized. By synchronously switching the first adjustable contact and the second adjustable contact, the connection relationship between a test interface and any diagnostic interface can be switched, thereby increasing the flexibility of the diagnostic connection device.

[0038] In one embodiment, the diagnostic interface includes diagnostic pins, and the number of diagnostic pins is greater than or equal to twice the number of test interfaces; for each rotary switch: the first adjustable contact of the first conductive unit is respectively connected to the diagnostic pin of the corresponding diagnostic interface, and the second adjustable contact of the second conductive unit is respectively connected to the diagnostic pin of the corresponding diagnostic interface; one diagnostic pin is connected to one first adjustable contact, or one diagnostic pin is connected to one second adjustable contact.

[0039] In this embodiment, based on the connection method of twisted pair cables, when the diagnostic interface includes diagnostic pins, the number of diagnostic pins is greater than or equal to twice the number of test interfaces. In each rotary switch, any diagnostic pin can only be connected to one first adjustable contact or one second adjustable contact. The same diagnostic pin cannot be connected to the first adjustable contact and the second adjustable contact at the same time. The first adjustable contact of the first conductive unit and the second adjustable contact of the second conductive unit need to be connected to different diagnostic pins respectively, so as to ensure the correct implementation of the switching logic.

[0040] In one embodiment, the test interface includes a D-type data interface connector (D-type interface, DB); the diagnostic interface includes an on-board diagnostic system diagnostic port (On-Board Diagnostics, OBD).

[0041] In this embodiment, optionally, the DB interface uses a DB interface (DB9 for short) including 9 pins (also called PIN pins), and selects pin 2 and pin 7 of the DB9 interface as the first test pin and the second test pin, respectively. Optionally, the CBD interface includes 16 pins (also called PIN pins), and the 16 pins are used as 16 diagnostic pins.

[0042] In one embodiment, the test device includes a diagnostic configuration panel; the diagnostic configuration panel is used to configure diagnostic parameters through the test interface.

[0043] In this embodiment, the tester can realize human-computer interaction with the test equipment through the diagnostic configuration panel. After connecting the device to be tested and the test equipment through the diagnostic connection device, the tester can configure the parameter information of the channel through the diagnostic configuration panel, such as baud rate, bus protocol, bus type, channel matching, etc., thereby further improving the flexibility and applicability of the test.

[0044] In a specific embodiment, taking the test interface using DB9, the diagnostic interface using OBD, the interface switching module using a rotary switch, and the device to be tested being a vehicle as an example, the connection structure and working principle of the diagnostic connection device are specifically introduced.

[0045] In this embodiment, Figure 2 As shown, the diagnostic interface of the diagnostic connection device includes 4 OBDs, namely OBD1, OBD2, OBD3 and OBD4. The test interface of the diagnostic connection device includes 8 DB9s, namely DB9-1, DB9-2, DB9-3, DB9-4, DB9-5, DB9-6, DB9-7 and DB9-8. The interface switching module of the diagnostic connection device includes 8 rotary switches, and DB9 corresponds to the rotary switch one by one. Of course, the number of OBDs and DB9s mentioned above is only an example and can be adjusted according to actual conditions and needs. For each rotary switch, 4 adjustable gears, 1, 2, 3, and 4, can be set on the rotary cover of the rotary switch, corresponding to 4 OBDs, namely OBD1, OBD2, OBD3, and OBD4. Number 1 corresponds to OBD1, number 2 corresponds to OBD2, number 3 corresponds to OBD3, and number 4 corresponds to OBD4.

[0046] In this embodiment, Figure 3 As shown, the test equipment connected to each test interface may include a diagnostic configuration panel to display the connectivity status of the diagnostic interface and configure the bus type, baud rate, channel matching and other information of the connectivity channel to enhance the flexibility of the test process.

[0047] In this embodiment, Figure 4 As shown, the No. 2 pin and No. 7 pin in each DB9 are used as the first test pin and the second test pin. For example, the No. 7 pin of DB9-1 is recorded as "1-7", the No. 7 pin of DB9-2 is recorded as "2-7", and so on; the No. 2 pin of DB9-1 is recorded as "1-2", the No. 2 pin of DB9-2 is recorded as "2-2", and so on. Each OBD includes 16 pins, which are recorded as "1, 2, 3, ..., 14, 15, 16".

[0048] For each rotary switch, the knob switch consists of a rotary cover and two metal conductive units, the two metal conductive units are the first conductive unit and the second conductive unit, each conductive unit consists of a fixed contact and four adjustable contacts, that is, the first conductive unit consists of a first fixed contact and four first adjustable contacts, each first adjustable contact corresponds to numbers 1 to 4, number 1 corresponds to OBD1, number 2 corresponds to OBD2, number 3 corresponds to OBD3, and number 4 corresponds to OBD4. The second conductive unit consists of a second fixed contact and four second adjustable contacts, each second adjustable contact corresponds to numbers 1 to 4, number 1 corresponds to OBD1, number 2 corresponds to OBD2, number 3 corresponds to OBD3, and number 4 corresponds to OBD4. Adjusting the knob switch can achieve synchronous adjustment of the first adjustable contact and the second adjustable contact, and switch the corresponding DB9 to the required OBD.

[0049] For example, the two test pins 1-7 and 1-2 of DB9-1 are respectively connected to the first fixed contact and the second fixed contact of the corresponding rotary switch. If the rotary switch is rotated to the number 1, the first adjustable contact and the second adjustable contact of the rotary switch are switched synchronously, the first adjustable contact is switched to the No. 1 diagnostic pin of OBD1, and the second adjustable contact is switched to the No. 9 diagnostic pin of OBD1, so that DB9-1 is connected to OBD1. If the rotary switch corresponding to DB9-1 is rotated to the number 2, the first adjustable contact and the second adjustable contact of the rotary switch are switched synchronously, the first adjustable contact is switched to the No. 1 diagnostic pin of OBD2, and the second adjustable contact is switched to the No. 9 diagnostic pin of OBD2, so that DB9-1 is connected to OBD1.

[0050] For another example, the two test pins 8-7 and 8-2 of DB9-8 are respectively connected to the first fixed contact and the second fixed contact of the corresponding rotary switch. If the rotary switch is rotated to number 1, the first adjustable contact and the second adjustable contact of the rotary switch are switched synchronously, the first adjustable contact is switched to diagnostic pin No. 9 of OBD1, and at the same time, the second adjustable contact is switched to diagnostic pin No. 16 of OBD1, then DB9-1 is connected to OBD1.

[0051] Furthermore, for any DB9, taking DB9-1 as an example, the rotary switch corresponding to DB9-1 can be rotated to number 1, and DB9-1 is connected to OBD1. If the rotary switches corresponding to multiple DB9s are simultaneously rotated to number 1, multiple DB9s can be simultaneously connected to OBD1. If any DB9 wants to use OBD2, the rotary switch corresponding to the DB9 can be rotated to number 2.

[0052] If the initial state is that the rotary switch corresponding to DB9-1 is rotated to number 1, and the rotary switch corresponding to DB9-2 is rotated to number 1, then both DB9-1 and DB9-2 are connected to OBD1. If the rotary switch corresponding to DB9-1 is rotated to number 1, and the rotary switch corresponding to DB9-2 is rotated to number 2, then DB9-1 is connected to OBD1 and DB9-2 is connected to OBD2, so that two OBDs can be used at the same time.

[0053] Furthermore, the rotary switches 1 to 4 can be rotated to number 1, and the rotary switches 5 to 8 can be rotated to 2. At this time, the communication of DB9-1, DB9-2, DB9-3 and DB9-4 all come from OBD1, and the communication of DB9-5, DB9-6, DB9-7 and DB9-8 comes from OBD2. In short, the numbers 1 to 4 on the rotary switch correspond to the four OBDs, OBD1, OBD2, OBD3 and OBD4. The corresponding DB9 will switch to the OBD to which number the rotary switch is rotated.

[0054] In this embodiment, the test engineer connects the vehicle to the test equipment through the diagnostic connection device to read the fault status and message of the whole vehicle. The diagnostic configuration panel can also display that the connection line is connected and there is no electrical fault. By selecting the corresponding bus configuration on the diagnostic configuration panel, the line is matched with the test equipment, thereby completing the test and fault diagnosis of the vehicle. Since the line from the diagnostic interface to the actual vehicle is fixed, adding a rotary switch to switch the line avoids multiple plugging and unplugging of the interface, reduces the complexity of the test process, and reduces the equipment damage rate.

[0055] Exemplary Diagnostic Systems

[0056] Accordingly, an embodiment of the present application further provides a vehicle diagnostic system, comprising a diagnostic device and a diagnostic connection device as provided in any of the above embodiments. Optionally, the diagnostic device comprises a test device provided in any of the above embodiments. Optionally, the device under test provided in any of the above embodiments comprises a vehicle.

[0057] The vehicle diagnostic system provided in this embodiment belongs to the same application concept as the diagnostic connection device provided in the above embodiments of this application, and has the corresponding functional modules and beneficial effects of the diagnostic connection device provided in any of the above embodiments of this application. For technical details not fully described in this embodiment, please refer to the specific processing content of the diagnostic connection device provided in the above embodiments of this application, and will not be repeated here.

[0058] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0059] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A diagnostic connection device, characterized in that: include: At least two diagnostic interfaces, at least two test interfaces and an interface switching module; The diagnostic interface is used to connect to the device interface of the device to be tested; The test interface is used to connect the test equipment; The interface switching module is connected to each of the diagnostic interfaces and each of the test interfaces respectively; The interface switching module is used to switch the connectivity between each of the test interfaces and each of the diagnostic interfaces.

2. The diagnostic connection device according to claim 1, characterized in that: The interface switching module includes at least two rotary switches, and the rotary switches correspond to the test interfaces one by one; The test interface is connected to any one of the diagnostic interfaces via the corresponding rotary switch; The rotary switch is used to switch the connection relationship between the corresponding test interface and the diagnostic interface.

3. The diagnostic connection device according to claim 2, characterized in that: The test interface includes a first test pin and a second test pin; The test interface is connected to the rotary switch through the first test pin and the second test pin.

4. The diagnostic connection device according to claim 3, characterized in that: The rotary switch comprises a first conductive unit and a second conductive unit; The first test pin is connected to a first fixed contact of the first conductive unit, and the second test pin is connected to a second fixed contact of the second conductive unit.

5. The diagnostic connection device according to claim 4, characterized in that: The rotary switch also includes a rotary cover; The first adjustable contact of the first conductive unit corresponds one-to-one to the diagnostic interface; The second adjustable contact of the second conductive unit corresponds one-to-one to the diagnostic interface; The rotating cover is used to drive the first adjustable contact and the second adjustable contact to switch synchronously.

6. The diagnostic connection device according to claim 5, characterized in that The diagnostic interface includes diagnostic pins, and the number of the diagnostic pins is greater than or equal to twice the number of the test interfaces; For each of the rotary switches: the first adjustable contact of the first conductive unit is respectively connected to the corresponding diagnostic pin of the diagnostic interface, and the second adjustable contact of the second conductive unit is respectively connected to the corresponding diagnostic pin of the diagnostic interface; One of the diagnostic pins is connected to one of the first adjustable contacts, or one of the diagnostic pins is connected to one of the second adjustable contacts.

7. The diagnostic connection device according to any one of claims 1 to 6, characterized in that: The device under test includes at least one of the device interfaces; One of the device interfaces is connected to one of the diagnostic interfaces.

8. The diagnostic connection device according to any one of claims 1 to 6, characterized in that: The test interface includes a D-type data interface connector; The diagnostic interface includes a diagnostic port of an on-board automatic diagnostic system.

9. The diagnostic connection device according to any one of claims 1 to 6, characterized in that: The test equipment includes a diagnostic configuration panel; The diagnostic configuration panel is used to configure diagnostic parameters through the test interface.

10. A vehicle diagnostic system, characterized in that: The invention comprises a diagnostic device and a diagnostic connection device as claimed in any one of claims 1 to 9.

Images