Two-channel OBD vehicle-mounted converter
By designing a dual-channel OBD vehicle converter, the problem of cumbersome operation caused by the inconsistent definition of the whole vehicle OBD interface in commercial vehicles was solved, achieving the effects of simplified connection and reduced cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI FAST GEAR CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-12
AI Technical Summary
In the commercial vehicle sector, the inconsistent definition of the vehicle's OBD interface leads to cumbersome operation, requiring multiple wiring harnesses for connection, and making it impossible to simultaneously realize the measurement and calibration functions of the vehicle's CAN and the calibration CAN.
Design a dual-channel OBD vehicle converter, including first and second OBD male plugs, connectors, banana sockets, banana plugs and DB9 female connectors, to achieve dual-channel connection between the vehicle CAN and the calibration CAN through a unified connector, simplifying operation.
It simplifies connection operations, reduces procurement costs, and improves material management efficiency under different vehicle OBD interface conditions, and is applicable to CAN network connections for different vehicle OBD interfaces.
Smart Images
Figure CN224225020U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of commercial vehicles, and specifically relates to a dual-channel OBD vehicle converter. Background Technology
[0002] Currently, in the commercial vehicle sector, the standard OBD port is the OBD-II system, featuring a 16-pin female connector. During vehicle wiring harness routing, the vehicle's power supply, chassis ground, signal ground, and CAN buses of various electronic control components are connected to the pins of the OBD female connector. Its main functions include: connecting to CAN communication equipment for vehicle CAN signal acquisition, connecting calibration tools to calibrate the transmission, engine, and other sub-assemblies, as well as the vehicle's calibration CAN bus, and connecting diagnostic equipment for fault diagnosis. Different OEMs define OBD pins differently to meet their individual needs, and the calibration CAN bus of electronic control components does not have fixed OBD pins. Furthermore, a vehicle may have two OBD connectors, resulting in the vehicle's CAN bus and the calibration CAN bus being connected to different OBD connectors.
[0003] Different OEMs have different numbers of OBD connectors, and different OBD interface definitions. To simultaneously achieve all functions such as measurement and calibration of the vehicle's CAN bus and calibration CAN bus, it may be necessary to use multiple conventional single-channel OBD wiring harnesses or various specifications of connection wiring harnesses, which makes the wiring harness operation process cumbersome. Utility Model Content
[0004] The purpose of this invention is to provide a dual-channel OBD vehicle converter to solve the problem of cumbersome operation during measurement and calibration in the prior art.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A dual-channel OBD vehicle converter includes a first OBD male plug, a second OBD male plug, a first connecting harness, a connector, a first banana socket, a second banana socket, a banana plug, a second connecting harness, a first DB9 female connector, and a second DB9 female connector.
[0007] Both the first banana socket and the second banana socket are mounted on the connector;
[0008] One end of the first OBD male plug and one end of the second OBD male plug are respectively connected to the two OBD female plugs of the vehicle; the pins of the other end of the first OBD male plug are connected to the corresponding pins on the first banana socket through the first connecting wire harness; the pins of the other end of the second OBD male plug are connected to the corresponding pins on the second banana socket through the first connecting wire harness.
[0009] One end of the first DB9 female connector and one end of the second DB9 female connector are connected to one end of the four banana plugs through the second connecting wire harness; the other ends of the four banana plugs are respectively connected to the corresponding sockets of the first banana socket and the second banana socket.
[0010] One end of the first DB9 female connector and the other end of the second DB9 female connector are connected to external testing instruments.
[0011] This utility model also has the following features:
[0012] Furthermore, both the first banana socket and the second banana socket have 16 holes.
[0013] Furthermore, each socket of the first banana socket and the second banana socket is marked with a serial number.
[0014] Furthermore, the first banana socket and the first OBD male plug are the same color;
[0015] The second banana socket and the second OBD male plug are the same color.
[0016] Compared with the prior art, this utility model has the following technical effects:
[0017] (I) This utility model's dual-channel OBD vehicle converter has two OBD male ports, enabling simultaneous data acquisition and electronic control component calibration even when the vehicle's CAN bus and calibration CAN bus have different OBD interfaces. Connection is simple and convenient. It solves the problem of cumbersome wiring connections that previously required two conventional single-channel OBD connection harnesses to simultaneously perform data acquisition and electronic control component calibration.
[0018] (II) The dual-channel OBD vehicle converter of this utility model reduces procurement costs and improves material management efficiency. At the same time, it meets the CAN network connection requirements of different numbers of OBD interfaces in different vehicles and different definitions of OBD interfaces. It reduces the need to purchase a variety of conventional OBD connection harnesses of different specifications due to the number and definition of OBD interfaces in the vehicle, thereby reducing procurement costs, reducing the number of parts to be purchased, and improving material management efficiency. It is suitable for large-scale use and promotion in industry. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of the dual-channel OBD vehicle converter of this utility model.
[0020] The meanings of the labels in the diagram are as follows:
[0021] 1. First OBD male connector; 2. Second OBD male connector; 3. First connecting harness; 4. Connector; 5. First banana socket; 6. Second banana socket; 7. Banana plug; 8. Second connecting harness; 9. First DB9 female connector; 10. Second DB9 female connector. Detailed Implementation
[0022] It should be noted that, unless otherwise specified, all components in this invention are known in the prior art. For example, the banana plug uses a commonly known banana plug.
[0023] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.
[0024] like Figure 1 As shown, a dual-channel OBD vehicle converter is characterized by comprising a first OBD male plug 1, a second OBD male plug 2, a first connecting harness 3, a connector 4, a first banana socket 5, a second banana socket 6, a banana plug 7, a second connecting harness 8, a first DB9 female connector 9, and a second DB9 female connector 10.
[0025] Both the first banana socket 5 and the second banana socket 6 are mounted on the connector 4;
[0026] One end of the first OBD male plug 1 and one end of the second OBD male plug 2 are respectively connected to the two OBD female plugs of the vehicle; the pins of the other end of the first OBD male plug 1 are connected to the corresponding sockets on the first banana socket 5 through the first connecting harness 3; the pins of the other end of the second OBD male plug 2 are connected to the corresponding sockets on the second banana socket 6 through the first connecting harness 3.
[0027] One end of the first DB9 female connector 9 and one end of the second DB9 female connector 10 are connected to one end of the four banana plugs 7 via the second connecting wire harness 8; one end of the four banana plugs 7 is connected; the other end of the banana plugs 7 is connected to the corresponding sockets of the first banana socket 5 and the second banana socket 6.
[0028] One end of the first DB9 female connector 9 and the other end of the second DB9 female connector 10 are connected to external testing instruments.
[0029] When using it, the user needs to confirm in advance the number of OBD ports and the definition of OBD pins of the whole vehicle, and be clear about the OBD ports and corresponding pins of the whole vehicle CAN and the calibration CAN of the electronic control components to be measured and calibrated.
[0030] Two OBD male connectors can satisfy the dual-channel connection of the vehicle CAN and the calibration CAN at different vehicle OBD interfaces, or the single-channel connection at the same vehicle OBD interface. This can simultaneously meet the needs of vehicle data acquisition and electronic control component calibration, thus solving the problem that conventional single-channel OBD connection harnesses cannot achieve this function, and solving the problem of complicated harness connection caused by the need for two conventional single-channel OBD connection harnesses to meet this function.
[0031] Among them, the banana plug 7 can be arbitrarily plugged into the socket on the connector 4 according to the OBD pin definition of the corresponding vehicle model, which can meet the connection requirements of any defined CAN network line. This solves the problem that various calibration devices cannot be accurately connected to the corresponding electronic control components to calibrate CAN due to the different OBDⅡ pin definition methods of different OEMs, and also solves the problem of the large number of wire harness specifications and high cost that result from this.
[0032] This embodiment uses a vehicle with two OBD ports and the vehicle CAN bus and the calibration CAN bus on different OBD ports as an example. A specific implementation method is given below:
[0033] Step 1: Connect one end of the first OBD male connector 1 and one end of the second OBD male connector 2 to the two OBD female connectors of the vehicle respectively.
[0034] Step 2: According to the pin definition of the CAN pin of the vehicle OBD female plug corresponding to the first OBD male plug 1, connect it to the socket of the first banana socket 5 on the connector 4.
[0035] Step 3: According to the pin definition of the CAN pin of the vehicle OBD female plug corresponding to the second OBD male plug 2, connect it to the socket of the first banana socket 5 on the connector 4;
[0036] Step 4: According to the testing and calibration requirements, connect the DB9 male connector of the testing equipment, calibration tool or diagnostic instrument to the first DB9 female connector 9 and the second DB9 female connector 10 respectively.
[0037] Specifically, both the first banana socket 5 and the second banana socket 6 have 16 sockets.
[0038] Taking a 16-ton China VI emission standard truck as an example, this vehicle has two OBD female connector ports in the cab: OBD1 and OBD2. The vehicle communication CAN is located at pins 3 and 11 of OBD1, while the transmission diagnostic CAN is located at pins 6 and 14 of OBD2.
[0039] When using a dual-channel OBD vehicle converter according to this embodiment to simultaneously connect and collect messages for the vehicle's CAN communication and transmission diagnostic CAN, the operation steps are as follows. The four banana plugs 7 are designated as banana plug a, banana plug b, banana plug c, and banana plug d.
[0040] Step 1: Connect the first OBD male connector 1 to a female OBD connector of the vehicle.
[0041] Step 2: Connect the second OBD male connector 2 to the other female OBD connector of the vehicle.
[0042] Step 3: Insert banana plug a into the socket 3 of the first banana socket 4 of connector 3, and insert banana plug b into the socket 11 of the first banana socket 4 of connector 3.
[0043] Step 4: Insert the banana plug c into the socket 6 of the second banana socket 5 of connector 3, and insert the banana plug d into the socket 14 of the second banana socket 5 of connector 3.
[0044] Step 5: Connect the DB9 male connector of the test equipment to the first DB9 female connector, and connect the DB9 male connector of the calibration equipment to the second DB9 female connector. This will enable simultaneous connection and testing of the vehicle communication CAN and the transmission calibration CAN.
[0045] As a preferred option, each socket of the first banana socket 5 and the second banana socket 6 is marked with a serial number.
[0046] As a preferred option, the first banana socket 5 and the first OBD male plug 1 are the same color;
[0047] The second banana socket 6 and the second OBD male plug 2 are the same color.
[0048] The first banana socket 5 and the first OBD male plug 1 are both red, and the second banana socket 6 and the second OBD male plug 2 are both blue.
[0049] Includes a first OBD male plug 1, a second OBD male plug 2, a first connecting harness 3, a connector 4, a first banana socket 5, a second banana socket 6, a banana plug 7, a second connecting harness 8, a first DB9 female connector 9, and a second DB9 female connector 10;
[0050] To make it easier to distinguish the connection between the banana plug and the DBC female connector, the first DB9 female connector 9 and its corresponding banana plug are green. This part of the banana plug is labeled with the words "CAN_L".
[0051] The second DB9 female connector 10 and its corresponding banana plug are both yellow. To distinguish the connection relationship between the banana plug and the DB9 female connector pins, this part of the banana plug is labeled with the words "CAN_H".
Claims
1. A dual-channel OBD vehicle converter, characterized in that, Includes a first OBD male plug (1), a second OBD male plug (2), a first connecting harness (3), a connector (4), a first banana socket (5), a second banana socket (6), a banana plug (7), a second connecting harness (8), a first DB9 female connector (9), and a second DB9 female connector (10); The first banana socket (5) and the second banana socket (6) are both mounted on the connector (4); One end of the first OBD male plug (1) and one end of the second OBD male plug (2) are respectively connected to the two OBD female plugs of the vehicle; the pins of the other end of the first OBD male plug (1) are connected to the corresponding pins on the first banana socket (5) through the first connecting wire harness (3); the pins of the other end of the second OBD male plug (2) are connected to the corresponding pins on the second banana socket (6) through the first connecting wire harness (3). One end of the first DB9 female connector (9) and one end of the second DB9 female connector (10) are connected to one end of the four banana plugs (7) through the second connecting wire harness (8); the other ends of the four banana plugs (7) are respectively connected to the corresponding sockets of the first banana socket (5) and the second banana socket (6); One end of the first DB9 female connector (9) and the other end of the second DB9 female connector (10) are connected to an external testing instrument.
2. The dual-channel OBD vehicle converter as described in claim 1, characterized in that, The first banana socket (5) and the second banana socket (6) both have 16 holes.
3. The dual-channel OBD vehicle converter as described in claim 2, characterized in that, Each socket of the first banana socket (5) and the second banana socket (6) is marked with a serial number.
4. The dual-channel OBD vehicle converter as described in claim 3, characterized in that, The first banana socket (5) and the first OBD male plug (1) are the same color; The second banana socket (6) and the second OBD male plug (2) are the same color.