CN215219118U - Wire harness module detection tool for vehicle test - Google Patents
Wire harness module detection tool for vehicle test Download PDFInfo
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- CN215219118U CN215219118U CN202120550060.6U CN202120550060U CN215219118U CN 215219118 U CN215219118 U CN 215219118U CN 202120550060 U CN202120550060 U CN 202120550060U CN 215219118 U CN215219118 U CN 215219118U
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Abstract
The utility model discloses a pencil module detects instrument for vehicle test, include: the operation panel comprises an input unit, a control unit, a display unit and a receiving unit, wherein the input unit is electrically connected with the control unit, the control unit is electrically connected with the display unit, and the control unit is electrically connected with the receiving unit; the two ends of the wire fitting are respectively provided with a panel interface and a plurality of wire harness interfaces, terminals of the panel interface and terminals of the plurality of wire harness interfaces are correspondingly connected one by one through connecting wires, the panel interface is used for connecting a receiving unit, and the wire harness interfaces are used for connecting wire harnesses to be detected; the user inputs an instruction to the control unit through the input unit, the control unit selectively connects the connection between the wire harness interface and the wire harness to be detected based on the instruction, the receiving unit receives data from the wire harness to be detected through the adaptive wire, and the control unit outputs display information to the display unit based on the received data of the receiving unit.
Description
Technical Field
The utility model relates to a vehicle test equipment detects instrument technical field, specifically relates to a vehicle test is with pencil module detection instrument.
Background
The vehicle in the development and trial-manufacture stage CAN be additionally provided with an additional test wiring harness module for connecting a data recorder, and whether the connection and communication state of the wiring harness module are normal or not has great influence on the subsequent test data acquisition of the data recorder and even on the normal communication of a CAN network in the running of the automobile. The additional test harness module is usually attached manually by a trial-and-manufacture department, so that it is necessary to perform post-attachment detection on the harness module.
In the prior art, a universal meter conduction detection method is commonly used, because a wiring harness is closed, the wiring harness CAN not be completely detected, and the communication states of automobile buses such as CAN/LIN and the like CAN not be detected; the bus detection equipment has high cost by the bus detection equipment detection method, and an upper computer is required for operation and display, so that the workshop is inconvenient to use on site; the professional requirements on field technicians are relatively high, and popularization is not facilitated.
SUMMERY OF THE UTILITY MODEL
For at least one aspect of solving above-mentioned problem, the utility model provides a vehicle test is with pencil module detection instrument, include: the operation panel comprises an input unit, a control unit, a display unit and a receiving unit, wherein the input unit is electrically connected with the control unit, the control unit is electrically connected with the display unit, and the control unit is electrically connected with the receiving unit; the wire fitting device comprises a wire fitting wire, a panel interface and a plurality of wire harness interfaces are respectively arranged at two ends of the wire fitting wire, terminals of the panel interface and terminals of the plurality of wire harness interfaces are connected in a one-to-one correspondence mode through connecting wires, the panel interface is used for being connected with a receiving unit, and the wire harness interfaces are used for being connected with wire harnesses to be detected; the control unit is used for receiving the data from the wire harness to be detected through the adaptive wire, and outputting display information to the display unit by the control unit based on the received data of the receiving unit.
Preferably, the control unit includes at least one switching circuit, the switching circuit includes a set of signal output pins and a plurality of sets of signal input pins, the control unit controls the signal output pins to be selectively connected with the plurality of sets of signal input pins by controlling a voltage of the switching circuit, the signal input pins are connected with the terminals of the panel interface through the receiving unit, and the control unit receives data through the signal output pins.
Preferably, the switching circuit includes three sets of the signal input pins, and each set of the signal input pins is connected to different terminals of the wire harness interface corresponding to the terminals of the panel interface.
Preferably, the switching circuit comprises at least two eight-pin relays.
Preferably, the switching circuit comprises a first relay and a second relay, wherein the normally closed contact of the first relay is connected with the movable contact of the second relay, the signal output pin is connected with the movable contact of the first relay, a first group of signal input pins is connected with the normally closed contact of the second relay, a second group of signal input pins is connected with the normally open contact of the second relay, and a third group of signal input pins is connected with the normally open contact of the first relay.
Preferably, the switching circuit further includes a resistor R9, a resistor R10, a capacitor C42, a capacitor C43, a transistor Q1 and a transistor Q2, one end of the inductor of the first relay is connected to +12V, the other end of the inductor of the first relay is connected to the collector of the transistor Q1, the base set of the transistor Q1 is connected to one end of the capacitor C42 and one end of the resistor R9, the other end of the resistor R9 is connected to +5V, the other end of the capacitor C42 is grounded, the emitter set of the transistor Q1 is grounded, one end of the inductor of the second relay is connected to +12V, the other end of the inductor of the second relay is connected to the collector of the transistor Q2, the base set of the transistor Q2 is connected to one end of the capacitor C43 and one end of the resistor R10, the other end of the resistor R10 is connected to +5V, the other end of the capacitor C43 is grounded.
Preferably, the receiving unit and the panel interface are connected using a DB plug and a DB socket.
Preferably, the operation panel includes a housing, the housing is provided with a display screen opening, a key opening and a plug opening, the display screen opening is used for installing the display unit, the key opening is used for installing the input unit, and the plug opening is used for installing the receiving unit.
The utility model discloses pencil module detection instrument is used in vehicle test has following beneficial effect:
(1) the control unit selectively connects the wire harness interface by receiving the instruction of the input unit so as to realize the selective detection of the wire harness to be detected by the detection tool, and further displays the detection result by the display unit so as to quickly master the detection result.
(2) The two eight-pin relays are arranged in the switching circuit to realize selective conduction of the signal output pins and the three signal input pins so as to realize selective reception of a target wire harness data signal to be detected connected with the wire harness interface, avoid manual switching for detection and improve detection efficiency.
Drawings
For a better understanding of the above and other objects, features, advantages and functions of the present invention, reference should be made to the embodiments illustrated in the drawings. Like reference numerals in the drawings refer to like parts. It will be appreciated by persons skilled in the art that the drawings are intended to illustrate preferred embodiments of the invention without any limiting effect on the scope of the invention, and that the various components in the drawings are not to scale.
Fig. 1 is a schematic structural diagram illustrating a wire harness module inspection tool for vehicle inspection according to an embodiment of the present invention;
fig. 2 shows the control unit switching circuit diagram of the wire harness module detection tool for vehicle testing according to the embodiment of the present invention.
Description of reference numerals:
10. an operation panel; 11. an input unit; 12. a display unit; 13. a receiving unit; 20. a suitable line; 21. a panel interface; 22. a wire harness interface.
Detailed Description
Exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings, in which various details of the embodiments of the disclosure are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
The term "include" and variations thereof as used herein is meant to be inclusive in an open-ended manner, i.e., "including but not limited to". Unless specifically stated otherwise, the term "or" means "and/or". The term "based on" means "based at least in part on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first," "second," and the like may refer to different or the same object. Other explicit and implicit definitions are also possible below.
To address at least in part one or more of the above and other potential problems, one embodiment of the present disclosure provides a harness module inspection tool for vehicle testing, comprising: the operation panel 10, the operation panel 10 includes input unit 11, control unit, display element 12 and receiving element 13, the input unit 11 is electrically connected with control unit, the control unit is electrically connected with display element 12, the control unit is electrically connected with receiving element 13; the adaptive wire 20 is provided with a panel interface 21 and a plurality of wire harness interfaces 22 at two ends of the adaptive wire 20 respectively, terminals of the panel interface 21 and terminals of the wire harness interfaces 22 are connected in a one-to-one correspondence manner through connecting wires, the panel interface 21 is used for connecting the receiving unit 13, and the wire harness interfaces 22 are used for connecting wire harnesses to be detected; wherein, the user inputs the instruction to the control unit through the input unit 11, the control unit selectively connects the connection between the wire harness interface 22 and the wire harness to be detected based on the instruction, the receiving unit 13 receives data from the wire harness to be detected through the adapting wire 20, and the control unit outputs display information to the display unit 12 based on the received data of the receiving unit 13.
Specifically, as shown in fig. 1, the operation panel 10 includes a housing, and a display screen opening, a key opening, and a plug opening are formed in the housing, the display screen opening is used for installing the display unit 12, the key opening is used for installing the input unit 11, and the plug opening is used for installing the receiving unit 13. The input unit 11 includes up, down, return and ok keys, each of which is movably connected with the inside of the housing through a key opening, and each of which is at least partially exposed out of the housing to enable input by pressing. The control unit adopts a PCB board comprising a memory, a processor and the like to receive and process the wire harness signal to be detected. The display unit 12 is an LCD screen, and the display screen is fixedly connected with the casing through a display screen opening. The receiving unit 13 and the panel interface 21 are connected using a DB plug and a DB socket. Specifically, the receiving unit 13 is connected with the panel interface 21 of the adaptation line 20 using a DB44 interface.
The adapter cable 20 includes a panel interface 21 and three harness interfaces 22, and terminals of the panel interface 21 and terminals of the three harness interfaces 22 are connected in a one-to-one correspondence by connecting wires. The panel interface 21 adopts a DB44 interface corresponding to the receiving unit 13 to implement the detection of the wire harness module for vehicle testing by the detection tool, including 15 paths of CAN lines, 2 paths of LIN lines, 1 path of K lines, 8 paths of power supplies, and 1 path of ground lines, and it should be noted that the wire harness module detection tool for vehicle testing implements the power supply of the detection tool by the vehicle power supply by accessing the power line of the wire harness to be detected.
When the test device is used, a user selects a detection mode through keys of the operation input unit 11, the detection mode comprises automatic detection and manual detection, a single-path bus test or a bus coverage test can be selected in the manual mode, and detection of each line is realized through the automatic switching of the communication of different wire harness interfaces 22 by the control unit in the self-use mode. And, for the platform types of different targets to be measured, for example, input instructions such as PQ platform, MQB platform, etc., the control unit determines the received data signal according to the indexes of different platforms based on the input instructions, and displays "normal" or "error" on the display unit 12 according to the determination result.
In some embodiments, the control unit includes at least one switching circuit, the switching circuit includes a set of signal output pins and a plurality of sets of signal input pins, the control unit controls the signal output pins to be selectively conducted with the plurality of sets of signal input pins by controlling a voltage of the switching circuit, the signal input pins are connected with terminals of the panel interface 21 through the receiving unit 13, and the control unit receives data through the signal output pins.
Specifically, as shown in fig. 2, in this embodiment, the control unit includes at least five switching circuits, each switching circuit includes three sets of signal input pins, and each set of signal input pins is connected to terminals of different wire harness interfaces corresponding to the terminals of the panel interface 21.
In some embodiments, the switching circuit comprises at least two eight-pin relays. Specifically, the switching circuit comprises a first relay and a second relay, the first relay and the second relay adopt a G6K-2F-Y relay, a normally closed contact of the first relay is connected with a movable contact of the second relay, a signal output pin is connected with the movable contact of the first relay, a first group of signal input pins are connected with the normally closed contact of the second relay, a second group of signal input pins are connected with a normally open contact of the second relay, and a third group of signal input pins are connected with the normally open contact of the first relay. It will be appreciated by those skilled in the art that in further embodiments, the first and second relays may also be replaced with two five-pin relays, respectively.
In some embodiments, the switching circuit further includes a resistor R9, a resistor R10, a capacitor C42, a capacitor C43, a transistor Q1, and a transistor Q2, one end of the inductor of the first relay is connected to +12V, the other end of the inductor of the first relay is connected to the collector of the transistor Q1, one end of the capacitor C42 and one end of the resistor R9 are connected to a base set of the transistor Q1, the other end of the resistor R9 is connected to the IO-2 port, wherein the IO-2 port may provide +5V, the other end of the capacitor C42 is grounded, the emitter set of the transistor Q1 is grounded, one end of the inductor of the second relay is connected to +12V, the other end of the inductor of the second relay is connected to the collector of the transistor Q2, the base set of the transistor Q2 is connected to one end of the capacitor C43 and one end of the resistor R10, the other end of the resistor R10 is connected to the IO-1 port, wherein the IO-1 port may provide +5V, the other terminal of the capacitor C43 is connected to ground.
Specifically, as shown in fig. 2, taking a switching circuit as an example, the signal output pins of the switching circuit include CAN-H and CAN-L pins, the input signal pins include first input signal pins CAN-1H and CAN-1L, second input signal pins CAN-2H and CAN-2L, third input signal pins CAN-3H and CAN-3L, and the first relay and the second relay adopt a G6K-2F-Y relay. One end of the first relay induction coil is connected with a 12V power supply through a first pin, the other end of the first relay induction coil is connected with a triode Q1 through an eighth pin, a second pin and a seventh pin of the first relay are normally closed contact connection points, a third pin and a sixth pin of the first relay are movable contact connection points, and a fourth pin and a fifth pin of the first relay are normally open contact connection points; one end of the second relay induction coil is connected with a 12V power supply through a first pin, the other end of the second relay induction coil is connected with a triode Q2 through an eighth pin, a second pin and a seventh pin of the second relay are normally closed contact connection points, a third pin and a sixth pin of the second relay are movable contact connection points, and a fourth pin and a fifth pin of the second relay are normally open contact connection points.
The second pin and the seventh pin of the first relay are respectively connected with the third pin and the sixth pin of the second relay, the output signal pin CAN-H is connected with the third pin of the first relay, the output signal pin CAN-L is connected with the sixth pin of the first relay, the third signal input pin CAN-3H and CAN-3L are respectively connected with the fourth pin and the fifth pin of the first relay, the second signal input pin CAN-2H and CAN-2L are respectively connected with the fourth pin and the fifth pin of the second relay, and the first signal input pin CAN-1H and CAN-1L are respectively connected with the second pin and the seventh pin of the second relay. The control unit controls the resistor R9 to be far away from the IO-1 voltage on one side of the triode Q1 and controls the resistor R10 to be far away from the IO-2 voltage on one side of the triode Q2 so as to attract the first relay and the second relay, and therefore selective communication of the signal input pins and the signal output pins is controlled.
When IO-1 and IO-2 are 5V, the relay 1 and the relay 2 are both attracted, and the circuit CAH-1 is connected with the CAN; when IO-1 is 0V and IO-2 is 5V, the relay 2 is not attracted, the relay 1 is attracted, and the CAN-2 is connected with the CAN at the moment; when IO-1 is 0V and IO-2 is 0V, the relay 1 and the relay 2 are not attracted, and the CAN-3 is connected with the CAN at the moment.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvements to the market, or to enable others of ordinary skill in the art to understand the disclosure.
Claims (8)
1. A wire harness module detection tool for vehicle testing, comprising:
the operation panel comprises an input unit, a control unit, a display unit and a receiving unit, wherein the input unit is electrically connected with the control unit, the control unit is electrically connected with the display unit, and the control unit is electrically connected with the receiving unit;
the wire fitting device comprises a wire fitting wire, a panel interface and a plurality of wire harness interfaces are respectively arranged at two ends of the wire fitting wire, terminals of the panel interface and terminals of the plurality of wire harness interfaces are connected in a one-to-one correspondence mode through connecting wires, the panel interface is used for being connected with a receiving unit, and the wire harness interfaces are used for being connected with wire harnesses to be detected;
the control unit is used for receiving the data from the wire harness to be detected through the adaptive wire, and outputting display information to the display unit by the control unit based on the received data of the receiving unit.
2. The tool of claim 1, wherein the control unit comprises at least one switching circuit, the switching circuit comprises a set of signal output pins and a plurality of sets of signal input pins, the control unit controls the signal output pins to be selectively conducted with the plurality of sets of signal input pins by controlling a voltage of the switching circuit, the signal input pins are connected with terminals of the panel interface through the receiving unit, and the control unit receives data through the signal output pins.
3. The tool of claim 2, wherein the switching circuit comprises three sets of the signal input pins, and each set of the signal input pins is connected to a terminal of the wire harness interface corresponding to a terminal of the panel interface.
4. The tool of claim 3, wherein the switching circuit comprises at least two eight-pin relays.
5. The tool of claim 4, wherein the switching circuit comprises a first relay and a second relay, wherein the normally closed contact of the first relay is connected to the movable contact of the second relay, the signal output pin is connected to the movable contact of the first relay, a first set of signal input pins is connected to the normally closed contact of the second relay, a second set of signal input pins is connected to the normally open contact of the second relay, and a third set of signal input pins is connected to the normally open contact of the first relay.
6. The tool of claim 5, wherein the switching circuit further comprises a resistor R9, a resistor R10, a capacitor C42, a capacitor C43, a transistor Q1, and a transistor Q2, wherein one end of the inductor of the first relay is connected to a +12V voltage, the other end of the inductor of the first relay is connected to a collector of the transistor Q1, a base set of the transistor Q1 is connected to one end of the capacitor C42 and one end of the resistor R9, the other end of the resistor R9 is connected to a +5V voltage, the other end of the capacitor C42 is connected to ground, the emitter set of the transistor Q1 is connected to ground, one end of the inductor of the second relay is connected to a +12V voltage, the other end of the inductor of the second relay is connected to a collector of the transistor Q2, the base set of the transistor Q2 is connected to one end of the capacitor C43 and one end of the resistor R10, the other end of the resistor R10 is connected with +5V voltage, and the other end of the capacitor C43 is grounded.
7. The tool of claim 1, wherein the receiving unit and the panel interface are connected using a DB plug and a DB socket.
8. The tool of claim 1, wherein the operating panel comprises a housing having a display opening for mounting the display unit, a key opening for mounting the input unit, and a plug opening for mounting the receiving unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120550060.6U CN215219118U (en) | 2021-03-17 | 2021-03-17 | Wire harness module detection tool for vehicle test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120550060.6U CN215219118U (en) | 2021-03-17 | 2021-03-17 | Wire harness module detection tool for vehicle test |
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| Publication Number | Publication Date |
|---|---|
| CN215219118U true CN215219118U (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120550060.6U Active CN215219118U (en) | 2021-03-17 | 2021-03-17 | Wire harness module detection tool for vehicle test |
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| CN (1) | CN215219118U (en) |
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- 2021-03-17 CN CN202120550060.6U patent/CN215219118U/en active Active
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