CN211603937U - Connecting line for vehicle body test - Google Patents
Connecting line for vehicle body test Download PDFInfo
- Publication number
- CN211603937U CN211603937U CN202020515485.9U CN202020515485U CN211603937U CN 211603937 U CN211603937 U CN 211603937U CN 202020515485 U CN202020515485 U CN 202020515485U CN 211603937 U CN211603937 U CN 211603937U
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- automobile
- brake actuator
- connecting end
- vehicle body
- fault
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Abstract
The utility model discloses a connecting line for testing a vehicle body, which comprises a wiring harness body, a first connecting end and a second connecting end, wherein the first connecting end and the second connecting end are respectively arranged at two ends of the wiring harness body; the first connecting end is used for being connected with an external brake actuator when the automobile prompts that the automobile body stability control system has a fault; the second connecting end is used for being connected with a communication wiring harness of the automobile and determining that an electronic control unit arranged in a built-in brake actuator of the automobile breaks down when the automobile prompts the automobile body stability control system to recover to normal; the first connecting end is also used for being connected with a failed built-in brake actuator, so that the failed built-in brake actuator can carry out zero point correction of the sensor through the failure diagnosis device. The utility model discloses utilize the automobile body test connecting wire to be connected the communication pencil of car with external brake executor, whether resume the electronic control unit who confirms in the built-in brake executor to normal condition through the fault indication lamp and be the fault location whether to fix a position the trouble reason fast and in time repair the maintenance.
Description
Technical Field
The utility model relates to an automobile inspection field especially relates to automobile body test connecting wire.
Background
When a vehicle body stability control system of an automobile breaks down, most of the failure causes are related to an electronic control unit of the vehicle body stability control system. The electronic control unit is generally provided inside a brake actuator that distributes and outputs a brake fluid pressure. In order to quickly determine whether the electronic control unit has a fault, the brake actuator including the electronic control unit inside the automobile is usually replaced by a good-product brake actuator, and if the fault display lamp stops displaying the fault in the automobile starting state after the good-product brake actuator is installed, the fault position can be positioned as the brake actuator and the electronic control unit.
However, in the process of replacing the good product brake actuator, the upper part of the engine compartment of the automobile needs to be partially disassembled or the baffle plate below the chassis needs to be disassembled after the automobile is lifted. The disassembly process is not only dangerous, but also prone to damage other parts of the automobile during disassembly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a main aim at providing an automobile body test connecting wire, comparatively dangerous when aiming at solving and dismantling replacement yields brake actuator and carry out fault detection, and damage the problem of other parts easily.
In order to achieve the above object, the utility model provides a connecting line for testing a vehicle body, which comprises a wiring harness body, a first connecting end and a second connecting end, wherein the first connecting end and the second connecting end are respectively arranged at two ends of the wiring harness body;
the first connecting end is used for being connected with an external brake actuator when the automobile prompts that the automobile body stability control system has a fault;
the second connecting end is used for being connected with a communication wiring harness of an automobile, and when the automobile prompts the automobile body stability control system to recover to be normal, the built-in brake actuator arranged on the automobile is determined to have a fault;
the first connecting end is also used for being connected with the failed built-in brake actuator, so that the failed built-in brake actuator is connected with the failure diagnosis equipment through the communication wiring harness, and zero point correction of the sensor is carried out.
Optionally, the wire harness body is configured to send the control signal to the external brake actuator through the first connection end when the second connection end receives the control signal sent by the vehicle through the communication wire harness.
Optionally, the external brake actuator is provided with an electronic control unit, and the electronic control unit controls the external brake actuator to execute corresponding operations when receiving the control signal.
Optionally, the vehicle body test connecting line further comprises a test module connected with the wire harness body;
the test module is used for being connected with a measuring instrument so that the measuring instrument can detect electrical parameters on the wire harness body through the test module, and the electrical parameters at least comprise voltage values and current values.
Optionally, the test module is a pin integration box;
the pin integration box comprises a plurality of pins and is used for detecting corresponding electrical parameters when the measuring instrument is connected with the corresponding pins.
Optionally, the pin integrated box includes an outer shell and a pin panel, and an outer edge of the pin panel abuts against an inner wall surface of the outer shell.
Optionally, a plurality of the pins are all inserted on the pin panel.
Optionally, the stitch panel is provided with a plurality of insertion holes corresponding to the stitches, and the stitches correspond to the insertion holes one to one.
Optionally, a plurality of the pins are arranged in an array.
The utility model discloses an when the automobile prompt automobile body stable control system trouble, utilize automobile body test connecting wire to carry out the communication pencil that communicates with car and built-in brake executor to be connected with external brake executor, need not dismantle parts such as part engine compartment apron, the cold and hot water pipe of air conditioner, also need not raise the car and pull down the baffle that vehicle chassis corresponds the position. After the external brake actuator is connected with the automobile, whether the internal brake actuator is at a fault position can be determined by whether the fault indicator lamp is recovered to a normal state, and after the internal brake actuator is determined to be in a fault, the detached fault internal brake actuator can be connected to the automobile again to correct a zero value so as to determine whether the fault reason is abnormal zero of the sensor, so that the fault reason is located quickly and repaired and maintained in time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic diagram of a module of an embodiment of the connecting line for testing a vehicle body of the present invention.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
31 | |
| 20 | First connecting end | 40 | |
| 21 | |
41 | Pin integrated |
| 30 | Second connecting |
50 | Measuring instrument |
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a vehicle body test connecting wire. The automobile body test connecting line is used for externally connecting a good product brake actuator to detect whether an automobile body stability control system of an automobile breaks down or not.
Referring to fig. 1, in one embodiment, a vehicle body test connection line includes a wire harness body 10 and a first connection end 20 and a second connection end 30 respectively disposed at both ends of the wire harness body 10. The first connection end 20 can be connected with an external brake actuator 21 when the automobile prompts that the automobile body stability control system has a fault. The second connection terminal 30 may be connected to a communication harness 31 of the vehicle, and may determine that a built-in brake actuator provided in the vehicle has failed when the vehicle prompts the vehicle body stability control system to return to normal. Generally, an electronic control unit in a built-in brake actuator stores zero values of various sensors, such as a G sensor (acceleration sensor), a Yaw rate sensor (Yaw rate sensor), a spoke sensor (brake pedal travel sensor), a Speed sensor (wheel Speed sensor), a Steering angle sensor (Steering angle sensor), etc., and when a learning process or a storing process of the zero values fluctuates or interferes with the learning process or the storing process, the zero values of the sensors are abnormal, but at this time, an automobile is mistakenly judged that the sensor, a wire harness or the electronic control unit in a body stability control system is abnormal. Therefore, it is necessary to further determine whether the cause of the failure is an abnormality in the zero point value of the sensor for the electronic control unit in the built-in brake actuator determined to have failed. After determining that the electronic control unit in a certain built-in brake actuator has a fault, the failed built-in brake actuator can be detached from the automobile, and the specific fault reason can be detected again. Specifically, the detached faulty built-in brake actuator can be connected to the communication harness 31 of the vehicle through the first connection terminal 20. The other end of the communication harness 31 may be connected to an accessed fault diagnosis device, which may be a fault diagnosis instrument GTS or a sensor learning device, through an OBD interface of the automobile. The fault diagnosis device can clear the zero point values of all sensors stored by an electronic control unit externally connected into a fault built-in brake actuator of an automobile, and corrects and stores the zero points of the sensors again. After zero point correction is carried out on the electronic control unit, if the automobile prompts that the fault built-in brake actuator is recovered to be normal, the fault reason can be determined to be that the zero point of the sensor is abnormal, but not that the part of the vehicle body stability control system is in fault.
In this embodiment, when the automobile starts, the automobile can carry out fault detection on the automobile body stability control system of the automobile, and when the automobile body stability control system cannot be normally used, a driver or a worker can be prompted to have the fault of the automobile body stability control system by lighting a corresponding fault indicator lamp. When it is determined that a fault of the vehicle body stability control system exists, the detecting personnel can connect the first connection end 20 with the external brake actuator 21, wherein the external brake actuator 21 is a good product brake actuator prepared by the detecting personnel in advance. The second connection end 30 of the body test connection line may then be connected to a communication harness 31 of the vehicle for communication with the built-in brake actuator. After the external brake actuator 21 is connected with the communication wire harness 31 through the wire harness body 10, fault detection can be performed on the external brake actuator 21 when the automobile is started, and whether the automobile body stability control system is recovered to be normal or not is prompted to a detector. When the fault indicator lamp is used for prompting, if the fault indicator lamp still displays the fault of the vehicle body stability control system, the electronic control unit in the automobile built-in brake actuator can be determined not to be at the fault position. If the corresponding fault indicator lamp is restored to a normal state, the fault reason of the automobile body stability control system of the automobile can be determined to be that the built-in brake actuator of the automobile is in fault, the detached built-in brake actuator is connected to the communication wiring harness 31 of the automobile again through the first connecting end 20, the OBD communication port of the automobile is also connected to fault diagnosis equipment, and zero values of all sensors stored in the electronic control unit in the built-in brake actuator can be cleared through the communication wiring harness 31 and corrected and stored again. When the correction is successful and the fault elimination of the vehicle body stability control system is prompted, the fault reason can be quickly judged to be zero point loss or learning failure caused by fluctuation interference of the sensor in the learning process, but the fault exists in the electronic control unit. When the automobile prompts the fault of the automobile body stability control system, the communication wire harness 31 of the automobile can be connected with the external brake actuator 21 or the detached internal brake actuator through the automobile body test connecting wire, parts such as an engine compartment cover plate, an air conditioner cold and hot water pipe and the like do not need to be detached, and the automobile does not need to be lifted and a baffle plate at a corresponding position of an automobile chassis does not need to be detached. After the external brake actuator 21 is connected with the automobile, whether the internal brake actuator is in a fault position can be determined by whether the fault indicator lamp is recovered to a normal state, so that the fault reason can be quickly located, and repair and maintenance can be carried out in time.
The wire harness body 10 can realize data transmission between the external brake actuator 21 and the communication wire harness 31 of the automobile. An electronic control unit is integrated in the external brake actuator 21, and after the automobile sends a corresponding control signal to the second connection end 30 through the communication harness 31, the harness body 10 can send the control signal to the external brake actuator 21 through the first connection end 20, so that the electronic control unit receives the control signal and controls the external brake actuator 21 to execute a corresponding brake operation. It can be understood that, when the automobile is started, the wire harness body 10 can also transmit a fault detection signal, so that the automobile detects the working state of the external brake actuator 21 and displays whether a fault occurs through the fault display lamp.
Further, the vehicle body test connection line further includes a test module 40 connected to the wire harness body 10. The testing module 40 can be externally connected to a measuring instrument 50, and the measuring instrument 50 can measure the electrical parameters of the electrical signals flowing through the wiring harness body 10 through the testing module 40. When the wire harness body 10 performs electric signal transmission or circuit failure occurs, the measuring instrument 50 can detect at least the voltage value and the current value input and output by the wire harness body 10, and determine the cause of the circuit failure according to the measured electric parameters. Since the communication harness 31 of the automobile is disposed in the engine compartment, the movable range of the end thereof is small, which is not favorable for connection with the measuring instrument 50. By additionally arranging the test module 40 on the harness body 10, the voltage and the current on the communication harness 31 can be measured by connecting the measuring instrument 50 with the test module 40 on the harness body 10 on the premise of not taking out the communication harness 31 of the automobile. Preferably, the measuring instrument 50 may be a multimeter
Further, the testing module 40 may be a pin integrated box 41, the pin integrated box 41 includes a plurality of pins therein, and the measuring instrument 50 may be connected to the corresponding pins to measure different electrical parameters.
The pin integrated box 41 may include a housing and a pin panel, an outer edge of the pin panel abutting against an inner wall surface of the housing. A plurality of pins are inserted on the surface of the pin panel, and the pin panel is also provided with insertion holes corresponding to the pins in number and position. The measuring terminals of the measuring instrument 50 can be connected with the pins through the insertion holes to accurately access the corresponding pins, and the corresponding current value, voltage value or other electrical parameters can be obtained through measurement.
Furthermore, a plurality of pins on the pin panel are arranged in an array, and at least a preset minimum distance is arranged between the plurality of pins, so that measurement errors caused by too short pin distance are avoided.
The above is only the optional embodiment of the present invention, and not therefore the scope of the present invention is limited, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (9)
1. A vehicle body test connecting line is characterized by comprising a wiring harness body, a first connecting end and a second connecting end, wherein the first connecting end and the second connecting end are respectively arranged at two ends of the wiring harness body;
the first connecting end is used for being connected with an external brake actuator when the automobile prompts that the automobile body stability control system has a fault;
the second connecting end is used for being connected with a communication wiring harness of an automobile, and when the automobile prompts the automobile body stability control system to recover to be normal, the built-in brake actuator arranged on the automobile is determined to have a fault;
the first connecting end is also used for being connected with the failed built-in brake actuator, so that the failed built-in brake actuator is connected with the failure diagnosis equipment through the communication wiring harness, and zero point correction of the sensor is carried out.
2. The vehicle body test connecting wire of claim 1, wherein the wire harness body is configured to send the control signal to the external brake actuator through the first connecting end when the second connecting end receives the control signal sent by the vehicle through the communication wire harness.
3. The vehicle body test connecting line as claimed in claim 2, wherein the external brake actuator is provided with an electronic control unit, and the electronic control unit controls the external brake actuator to perform corresponding operation when receiving the control signal.
4. The vehicle body test connection of claim 3, further comprising a test module connected to the harness body;
the test module is used for being connected with a measuring instrument so that the measuring instrument can detect electrical parameters on the wire harness body through the test module, and the electrical parameters at least comprise voltage values and current values.
5. The vehicle body test connection of claim 4, wherein the test module is a pin integrated box;
the pin integration box comprises a plurality of pins and is used for detecting corresponding electrical parameters when the measuring instrument is connected with the corresponding pins.
6. The vehicle body test connection of claim 5, wherein the pin integrated box comprises an outer shell and a pin panel, wherein an outer edge of the pin panel abuts against an inner wall surface of the outer shell.
7. The vehicle body test connection of claim 6, wherein a plurality of said pins are each inserted into said pin panel.
8. The vehicle body test connecting line according to claim 7, wherein the pin panel is provided with a plurality of insertion holes corresponding to the pins, and the pins correspond to the insertion holes one to one.
9. The vehicle body test connection line as claimed in any one of claims 5 to 8, wherein a plurality of the pins are arranged in an array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020515485.9U CN211603937U (en) | 2020-04-09 | 2020-04-09 | Connecting line for vehicle body test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020515485.9U CN211603937U (en) | 2020-04-09 | 2020-04-09 | Connecting line for vehicle body test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211603937U true CN211603937U (en) | 2020-09-29 |
Family
ID=72583547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020515485.9U Active CN211603937U (en) | 2020-04-09 | 2020-04-09 | Connecting line for vehicle body test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211603937U (en) |
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2020
- 2020-04-09 CN CN202020515485.9U patent/CN211603937U/en active Active
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