AMT gearbox rack test brushing wiring harness and device

Abstract

The utility model belongs to the field of connecting wire harnesses, and particularly relates to an AMT gearbox rack testing and flashing wire harness and a testing and flashing device adopting the same. The wire harness comprises a wire harness body, a gearbox TCU end plug-in female head, a gearbox diagnosis interface, a power plug-in head, a DB9 female head and a resistor. The wire harness body comprises a main wire and two branch wires led out from the main wire; the gearbox TCU end plug-in female head is used for being plugged with the gearbox TCU end plug-in male head, the gearbox diagnosis interface is used for being plugged with a plug-in port of a diagnosis instrument, and the gearbox TCU end plug-in female head and the gearbox diagnosis interface are connected to the two ends of the main line respectively; the power supply plug is used for being connected with a gearbox rack power supply in an inserted mode, the DB9 female head is used for being connected with a gearbox rack CAN1 plug-in male head in an inserted mode, and the power supply plug and the DB9 female head are connected to the ends of the two branch lines respectively; and two ends of the resistor are respectively connected with a pin II and a pin VII on the DB9 female joint. The connector is simple in structure and convenient to install, and only the connectors need to be plugged in a butt joint mode.

Description

Technical Field

[0001] This utility model relates to a wiring harness, specifically to an AMT gearbox bench test writing wiring harness and a test writing device using the wiring harness. Background Technology

[0002] With the development of electro-hydraulic AMT series products, bench testing of the transmission's hardware and software is an essential and crucial step. During the bench testing phase of an AMT automatic transmission, bench testing personnel typically need to perform program flashing, data acquisition, fault diagnosis, and calibration tests on the transmission.

[0003] Currently, when conducting bench testing of AMT automatic transmissions, it is usually necessary to strip the wires from the vehicle wiring harness and convert it into a bench test wiring harness to facilitate the connection of related equipment. This is time-consuming, labor-intensive, and the wiring is unreliable. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problems of existing methods for AMT automatic transmission bench testing, which involve stripping wires from the vehicle wiring harness and converting them into bench test wiring harnesses for easy connection of related equipment. These methods are time-consuming, labor-intensive, and have unreliable wiring. The present invention provides an AMT transmission bench test writing wiring harness and device.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A type of AMT transmission bench test flashing harness, which is special in that:

[0007] Includes the wiring harness body, the transmission TCU terminal block female connector, the transmission diagnostic interface, the power connector, the DB9 female connector, and the resistor;

[0008] The harness body includes a main wire and two branch wires extending from the main wire;

[0009] The female connector for the transmission TCU terminal is used to connect with the male connector for the transmission TCU terminal, and the transmission diagnostic interface is used to connect with the connector of the diagnostic tool. The female connector for the transmission TCU terminal and the transmission diagnostic interface are respectively connected to the two ends of the main line.

[0010] The power connector is used to connect to the power supply of the gearbox test bench, and the DB9 female connector is used to connect to the CAN1 male connector of the gearbox test bench. The power connector and the DB9 female connector are respectively connected to the ends of the two branch lines.

[0011] The DB9 female connector has nine pins, namely pin I, pin II, pin III, ..., pin VII, pin VII and pin IX; the two ends of the resistor are connected to pin II and pin VII respectively.

[0012] Furthermore, the power supply plug includes a positive plug and a negative plug;

[0013] The positive plug and the negative plug are respectively connected to the end of one of the branch lines.

[0014] Furthermore, the resistance value of the resistor is 120Ω.

[0015] Meanwhile, this utility model also provides an AMT gearbox bench test flashing device, which is special in that:

[0016] This includes a diagnostic instrument and the aforementioned AMT transmission bench test and write wiring harness;

[0017] The diagnostic tool is used to perform data writing and calibration tests on the transmission. The diagnostic tool is equipped with a connector that is plugged into the transmission diagnostic interface.

[0018] The female connector of the transmission TCU terminal is connected to the male connector of the transmission TCU terminal, the power connector is connected to the power supply of the transmission test bench, and the DB9 female connector is connected to the male connector of the CAN1 terminal of the transmission test bench.

[0019] The beneficial effects of this utility model are:

[0020] This utility model features a simple structure and convenient installation, requiring only the plug-in connection. It meets the requirements of bench hardware and software testing and has good versatility, suitable for writing, calibrating, and testing various light truck electro-hydraulic AMT benches. The writing process can be performed without connection to the bench's CAN network, resulting in a high success rate and reducing the impact of other nodes in the bench's CAN network on controller connection and writing.

[0021] This invention can be connected to a gearbox test bench power supply independently, solving the problem of real-time monitoring of current and voltage changes during the testing process of electro-hydraulic products. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the AMT gearbox bench test brushing harness of this utility model;

[0023] Figure 2 This is a schematic diagram of the pin layout of the DB9 female connector in an embodiment of an AMT gearbox bench test writing harness of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of an AMT gearbox bench test and writing device according to this utility model.

[0025] In the diagram: 1-Wire harness body, 11-Main line, 12-Branch line; 2-Transmission TCU terminal female connector, 3-Transmission diagnostic interface, 4-Power supply connector, 5-DB9 female connector, 6-Resistor, 7-Diagnostic instrument, 8-Connection. Detailed Implementation

[0026] To make the objectives, advantages, and features of this utility model clearer, the following detailed description of an AMT gearbox bench test brushing harness and device proposed by this utility model, in conjunction with the accompanying drawings and specific embodiments, will further clarify these points. The advantages and features of this utility model will become clearer according to the following specific embodiments.

[0027] See Figure 1 This embodiment describes an AMT transmission bench test flashing harness, which mainly includes a harness body 1, a transmission TCU terminal female connector 2, a transmission diagnostic interface 3, a power connector 4, a DB9 female connector 5, and a resistor 6.

[0028] The female connector 2 of the gearbox TCU terminal is equipped with 58 pins. When in use, the female connector 2 of the gearbox TCU terminal is plugged into the male connector of the gearbox TCU terminal, which facilitates the introduction of power supply, CAN communication and gearbox TCU output status and usage signals.

[0029] The transmission diagnostic interface 3 has 16 pins. When in use, the transmission diagnostic interface 3 is plugged into the connector 8 of the diagnostic tool 7, so that the transmission data can be written and calibrated through the diagnostic tool 7.

[0030] The power connector 4 includes a positive connector and a negative connector. When in use, the positive connector and the negative connector are plugged into the power interface of the gearbox bench power supply respectively, so as to meet the requirements of abnormal changes in TCU current and voltage during the observation, writing, testing and calibration process.

[0031] See Figure 2 The DB9 female connector 5 has nine pins: pins 1, 2, 3, ..., 7, 7, and 9. These nine pins are divided into two groups in a 5:4 ratio. The first group and the second group are spaced vertically. From left to right, the first group consists of pins 1, 2, 3, 4, and 5; the second group consists of pins 6, 7, 7, and 9. Resistor 6 is connected to pins 2 and 7 respectively. Specifically, resistor 6 has a resistance of 120Ω. It should be noted that the terms "upper," "lower," "left," and "right" are all relative to the pins on the outside and inside the inside. Figure 2 The orientation of the paper should be taken into account.

[0032] When in use, connect the DB9 female connector 5 pairs to the CAN1 male connector on the gearbox test bench to facilitate the extraction of CAN communication and related status or enable signals such as test bench speed and torque.

[0033] Specifically, to meet the connection requirements of different connectors, in this embodiment, the wiring harness body 1 includes a main line 11 and two branch lines 12 extending from the main line 11. The transmission TCU terminal female connector 2 and the transmission diagnostic interface 3 are respectively connected to the two ends of the main line, the positive plug and the negative plug are respectively connected to the end of one of the branch lines 12, and the DB9 female connector 5 is connected to the end of the other branch line 12.

[0034] See Figure 3 This embodiment provides an AMT transmission bench test and writing device, which mainly includes a diagnostic instrument 7 and an AMT transmission bench test and writing wiring harness.

[0035] The main function of the diagnostic instrument 7 is to perform data writing and calibration tests on the transmission. The diagnostic instrument 7 is equipped with a connector 8, which is connected to the transmission diagnostic interface 3.

Claims

1. A type of AMT transmission bench test writing harness, characterized in that: Includes the wiring harness body (1), the transmission TCU terminal plug (2), the transmission diagnostic interface (3), the power supply plug (4), the DB9 female connector (5), and the resistor (6); The wire harness body (1) includes a main wire (11) and two branch wires (12) drawn from the main wire (11); The female connector (2) of the transmission TCU terminal is used to connect with the male connector of the transmission TCU terminal, and the transmission diagnostic interface (3) is used to connect with the connector of the diagnostic instrument. The female connector (2) of the transmission TCU terminal and the transmission diagnostic interface (3) are respectively connected to the two ends of the main line (11). The power connector (4) is used to connect to the power supply of the gearbox test bench, and the DB9 female connector (5) is used to connect to the CAN1 male connector of the gearbox test bench. The power connector (4) and the DB9 female connector (5) are respectively connected to the ends of the two branch lines (12). The DB9 female connector (5) has nine pins, namely pin I, pin II, pin III, ..., pin VII, pin VII and pin IX; the two ends of the resistor (6) are connected to pin II and pin VII respectively.

2. The AMT gearbox bench test writing harness according to claim 1, characterized in that: The power supply plug (4) includes a positive plug and a negative plug; The positive plug and the negative plug are respectively connected to the end of one of the branch lines (12).

3. The AMT gearbox bench test writing harness according to claim 1 or 2, characterized in that: The resistance of the resistor (6) is 120Ω.

4. An AMT gearbox bench test flashing device, characterized in that: Includes a diagnostic instrument (7) and an AMT transmission bench test writing harness as described in any one of claims 1-3; The diagnostic instrument (7) is used to perform data writing and calibration tests on the transmission. The diagnostic instrument (7) is equipped with a connector (8) that is connected to the transmission diagnostic interface (3). The female connector (2) of the gearbox TCU terminal is connected to the male connector of the gearbox TCU terminal, the power connector (4) is connected to the power supply of the gearbox test bench, and the DB9 female connector (5) is connected to the male connector of the CAN1 terminal of the gearbox test bench.

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