CN219608057U - Motormeter check out test set - Google Patents
Motormeter check out test set Download PDFInfo
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- CN219608057U CN219608057U CN202320122686.6U CN202320122686U CN219608057U CN 219608057 U CN219608057 U CN 219608057U CN 202320122686 U CN202320122686 U CN 202320122686U CN 219608057 U CN219608057 U CN 219608057U
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- display module
- voltage
- automobile instrument
- oil level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The utility model relates to an automobile instrument detection device, which comprises: the power input end is used for connecting an external input power supply; the switching value control area comprises at least one measuring unit, the measuring unit comprises a positive electrode end, a negative electrode end and a torsion switch, the positive electrode end is connected with a positive voltage of an input power supply, and the negative electrode end is grounded; the torsion switch is connected with the positive electrode end or the negative electrode end; an analog quantity control section including: the device comprises an input voltage display module, an air pressure display module, an oil level display module and a vehicle speed display module; the input voltage display module is used for displaying input voltage, the air pressure display module is used for representing a first voltage value of tire pressure, the oil level display module is used for displaying a second voltage value representing oil level, and the vehicle speed display module is used for displaying pulse frequency representing vehicle speed. The utility model can achieve the aim of controlling the switching value of the whole vehicle, has linearly adjustable analog quantity and can clearly see the output accurate numerical value, and compared with the prior art of assembling the instrument to the whole vehicle, the utility model greatly improves the working efficiency and the accuracy.
Description
Technical Field
The utility model relates to the technical field of automobile instruments, in particular to automobile instrument detection equipment.
Background
The automobile instrument plays an important role in displaying the state of the automobile in the whole automobile, and the accuracy of the content is important for drivers and maintenance personnel. After the instrument development is completed or when the fault part is analyzed, each functional module of the instrument design needs to be detected. The current main detection mode is to assemble the instrument on the vehicle to check whether normal work can be performed, but because the signal sources received on the real vehicle are more, when the instrument gives an error alarm, the alarm problem source cannot be accurately judged, the same instrument is used for verification on a plurality of vehicle types, and different vehicle types have certain differences in signals, and in the verification process, whether the vehicle itself has faults or the logic design of the instrument is wrong cannot be judged when the instrument gives an alarm.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide an automobile instrument detecting device for solving at least one problem of the prior art.
To achieve the above and other related objects, the present utility model provides an automobile instrument detection apparatus comprising:
the power input end is used for connecting an external input power supply;
the switching value control area comprises at least one measuring unit, wherein the measuring unit comprises a positive electrode end, a negative electrode end and a torsion switch, the positive electrode end is connected with a positive voltage of an input power supply, and the negative electrode end is grounded; the torsion switch is connected with the positive electrode end or the negative electrode end;
an analog control area, the analog control area comprising: the device comprises an input voltage display module, an air pressure display module, an oil level display module and a vehicle speed display module; the input voltage display module is used for displaying input voltage, the air pressure display module is used for displaying a first voltage value representing tire pressure, the oil level display module is used for displaying a second voltage value representing oil level, and the vehicle speed display module is used for displaying pulse frequency representing vehicle speed.
In an embodiment of the utility model, the measuring unit further comprises a current limiting resistor, one end of the current limiting resistor is connected with the torsion switch, and the other end of the current limiting resistor is connected with a wiring terminal of the tested automobile instrument through a cable.
In an embodiment of the present utility model, the detection apparatus further includes: and the current fuse is used for being connected with the power input end in series.
In an embodiment of the utility model, the input voltage display module is a direct current voltage meter connected in parallel with the power input terminal.
In an embodiment of the present utility model, the detection apparatus further includes: a key module, the key module comprising: the automobile instrument to be tested is connected with the keys through the key interface.
In an embodiment of the present utility model, the detection apparatus further includes:
an SAE1939 interface, and the tested automobile instrument is communicated with the CAN box through the SAE1939 interface;
the K line interface is used for communicating the tested automobile instrument with the diagnostic instrument;
and the oil level sensor is connected with the oil level display module through the oil level sensor interface.
In an embodiment of the present utility model, the key module includes a plurality of key units, and the key units are connected with the wiring terminals of the tested automobile instrument; each key unit comprises a key and a resistor, and the key is connected with the resistor in series.
In an embodiment of the utility model, the air pressure display module includes:
the first voltage conversion sub-module is used for converting the power supply voltage into a first voltage value;
and the display sub-module is used for displaying the first voltage value.
In an embodiment of the present utility model, the oil level display module includes: the device comprises an adjustable resistor, an adjustable resistor measurement display sub-module, a change-over switch and a tested automobile instrument connecting end;
the change-over switch comprises a first switching gear and a second switching gear, and when the change-over switch is in the first switching gear, the adjustable resistance measurement submodule is connected in parallel with two ends of the adjustable resistance; when the change-over switch is in the second gear-shifting position, the connecting ends of the tested automobile instrument are connected in parallel with the two ends of the adjustable resistor.
In an embodiment of the present utility model, the vehicle speed display module includes:
the second voltage conversion sub-module is used for converting the power supply voltage into a second voltage;
a pulse generator for outputting a pulse signal with the second voltage as an input voltage;
the pulse signal terminal is connected with the output end of the pulse generator and used for connecting the tested automobile instrument.
As described above, the automobile instrument detection device provided by the utility model has the following beneficial effects:
the utility model relates to an automobile instrument detection device, which comprises: the power input end is used for connecting an external input power supply; the switching value control area comprises at least one measuring unit, wherein the measuring unit comprises a positive electrode end, a negative electrode end and a torsion switch, the positive electrode end is connected with a positive voltage of an input power supply, and the negative electrode end is grounded; the torsion switch is connected with the positive electrode end or the negative electrode end; an analog control area, the analog control area comprising: the device comprises an input voltage display module, an air pressure display module, an oil level display module and a vehicle speed display module; the input voltage display module is used for displaying input voltage, the air pressure display module is used for displaying a first voltage value representing tire pressure, the oil level display module is used for displaying a second voltage value representing oil level, and the vehicle speed display module is used for displaying pulse frequency representing vehicle speed. The utility model can achieve the aim of controlling the switching value of the whole vehicle, has linearly adjustable analog quantity and can clearly see the output accurate numerical value, and compared with the prior art of assembling the instrument to the whole vehicle, the utility model greatly improves the working efficiency and the accuracy.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments of the present utility model will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic hardware structure of an automobile instrument detection device according to an exemplary embodiment of the present utility model;
fig. 2 is a schematic electrical structure of an automobile instrument detection device according to an exemplary embodiment of the present utility model;
FIG. 3 is a schematic diagram of a switching value control zone according to an exemplary embodiment of the present utility model;
FIG. 4 is a schematic diagram of a pneumatic display module according to an exemplary embodiment of the present utility model;
fig. 5 is a schematic view of an oil level display module shown in an exemplary embodiment of the utility model;
fig. 6 is a schematic diagram of a vehicle speed display module according to an exemplary embodiment of the present utility model.
Detailed Description
Further advantages and effects of the present utility model will become readily apparent to those skilled in the art from the disclosure herein, by referring to the accompanying drawings and the preferred embodiments. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
In the present utility model, "and/or" describing the association relationship of the association object, three relationships may exist, for example, a and/or B may represent: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
The term "plurality" as used herein means two or more.
In the description of the present utility model, the words "first," "second," and the like are used solely for the purpose of distinguishing between descriptions and not necessarily for the purpose of indicating or implying a relative importance or order.
In addition, in the embodiments of the present utility model, the term "exemplary" is used to mean serving as an example, instance, or illustration. Any embodiment or implementation described as "exemplary" in this disclosure should not be construed as preferred or advantageous over other embodiments or implementations. Rather, the term use of an example is intended to present concepts in a concrete fashion.
In the following description, numerous details are set forth in order to provide a more thorough explanation of embodiments of the present utility model, it will be apparent, however, to one skilled in the art that embodiments of the present utility model may be practiced without these specific details, in other embodiments, well-known structures and devices are shown in block diagram form, rather than in detail, in order to avoid obscuring the embodiments of the present utility model.
The signals of the automobile instrument comprise analog signals such as voltage, resistance and pulse; because the quantity is continuously variable, if the quantity is tested on the whole vehicle, the quantity of the numerical value change cannot be manually controlled, the accuracy of the instrument cannot be checked when the signal quantity is continuously variable, and an alarm (such as a vehicle speed but not belted with a safety belt, a vehicle speed while a handbrake is pulled, a vehicle speed but a vehicle door is not closed) which can be displayed only when the vehicle speed is required can be produced on the vehicle, so that the alarm has a certain danger to drivers and passengers or a certain damage to the vehicle.
For CAN signals, such as engine water temperature, rotating speed and the like, the signals are provided on the vehicle, if the instrument is assembled on the whole vehicle, the signals are in conflict with the original signals on the vehicle by using external equipment, and the verification of the instrument function is also adversely affected.
Based on the above disadvantages, the embodiment provides an automobile instrument detection device, which can achieve the purposes that the switching value of the whole automobile is controllable, the analog quantity is linearly adjustable, and the output accurate numerical value can be seen clearly, and compared with the prior art, the automobile instrument detection device has the advantages that the working efficiency and the accuracy are greatly improved when the instrument is assembled on the whole automobile.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating an apparatus for detecting an automobile instrument according to an exemplary embodiment of the present utility model. As shown in fig. 1, the automobile instrument detection apparatus includes: the power supply input end, the switching value control area and the analog value control area;
the power input end is used for connecting an external input power supply;
referring to fig. 3, the switching value control area 10 includes at least one measuring unit, where the measuring unit includes a positive terminal, a negative terminal, and a torsion switch, the positive terminal is connected to a positive voltage of an input power source, and the negative terminal is grounded; the torsion switch is connected with the positive electrode end or the negative electrode end;
in order to prevent the equipment from being damaged by misoperation, the short-circuit socket should be sealed by a plug for the input line and the ground line of the power supply to prevent the power supply from being short-circuited.
An analog quantity control section 20 including: an input voltage display module 21, an air pressure display module 22, an oil level display module 23 and a vehicle speed display module 24; the input voltage display module is used for displaying input voltage, the air pressure display module is used for displaying a first voltage value representing tire pressure, the oil level display module is used for displaying a second voltage value representing oil level, and the vehicle speed display module is used for displaying pulse frequency representing vehicle speed.
In this embodiment, the automobile instrument detection device is divided into a switching value control area and an analog value control area, wherein a switching value part in the switching value control area can be selectively connected with positive electricity or negative electricity through a short-circuit plug, and an analog value part in the analog value control area changes the output quantity through a knob, such as a voltage signal, a pulse signal and a resistance signal lamp. Before the detection equipment is used, all switches of the detection equipment are disconnected, the instrument is connected to the detection equipment, the analog quantity is regulated to the minimum value, then the main power supply is connected, and the logic of the instrument is tested in cooperation with development data of the instrument.
In an embodiment, the measuring unit further comprises a current limiting resistor, one end of the current limiting resistor is connected with the torsion switch, and the other end of the current limiting resistor is connected with a wiring terminal of the tested automobile instrument through a cable; the detection apparatus further includes: the current fuse is used for being connected with the power input end in series; the input voltage display module is a direct current voltage meter and is connected with the power input end in parallel.
In the embodiment, the detection device uses a power supply of 24V, is connected through a round-head DC plug, the positive electrode is connected into a current fuse of 10A after the current fuse is connected, a 0-50V direct-current voltmeter (display module) is connected in parallel behind the current fuse, positive electricity flows to the positive electrode of each socket, negative electricity flows to the negative electrode of the socket, the torsion switch determines whether the torsion switch is connected with positive electricity or negative electricity according to the position of a short-circuit plug, the torsion switch is connected with a 300 omega current limiting resistor after being led out, and the function is to prevent the instrument from being burnt out due to overlarge current, and a resistance lead-out cable is connected with a corresponding contact of the instrument.
In an embodiment, the detection device further comprises: a key module 25, the key module comprising: the tested automobile instrument is connected with the keys through the key interface 28. By connecting the tested automobile instrument with the keys on the steering wheel, the functions of the keys can be verified in the subsequent test.
Specifically, as shown in fig. 2, the key module includes a plurality of key units, and the key units are connected with the wiring terminals of the tested automobile instrument; each key unit comprises a key and a resistor, and the key is connected with the resistor in series.
In an embodiment, the detection device further comprises:
an SAE1939 interface 26, through which the tested automobile instrument communicates with the CAN box;
a K-wire interface 27 through which the automobile instrument to be tested communicates with the diagnostic apparatus; the tested automobile instrument is connected with the diagnostic instrument through the K line interface, so that the configuration of instrument functions can be realized;
an oil level sensor interface 29 through which an oil level sensor is connected to the oil level display module; the oil level sensor is connected with the tested automobile instrument through the oil level sensor interface, so that the function of the oil level gauge can be verified in the subsequent test.
Referring to fig. 4, fig. 4 is a schematic diagram of an air pressure display module according to an exemplary embodiment of the utility model.
In fig. 4, the air pressure display module includes:
the first voltage conversion sub-module is used for converting the power supply voltage into a first voltage value;
and the display sub-module is used for displaying the first voltage value.
The air pressure display module (air pressure loop) adopts voltage signal monitoring of 0-5V, an adjustable voltage generator is needed to be connected, the voltage of 24V is adjusted to 0-5V, and blind plugging is needed to be used for the positive electrode short circuit hole of the circuit in order to prevent the tester from damaging the instrument due to false positive touching. The function of the wires connected to B27, B28 is to facilitate the detection of the accuracy of the current output voltage by a multimeter.
Referring to fig. 5, fig. 5 is a schematic view of an oil level display module according to an exemplary embodiment of the present utility model.
In fig. 5, the oil level display module includes:
the device comprises an adjustable resistor, an adjustable resistor measurement display sub-module, a change-over switch and a tested automobile instrument connecting end;
the change-over switch comprises a first switching gear and a second switching gear, and when the change-over switch is in the first switching gear, the adjustable resistance measurement submodule is connected in parallel with two ends of the adjustable resistance; when the change-over switch is in the second gear-shifting position, the connecting ends of the tested automobile instrument are connected in parallel with the two ends of the adjustable resistor.
The oil level display part is an adjustable resistor of 0-200 ohms, because the resistor can bring errors after long-term use, an ohmmeter is connected to detect whether the resistance is accurate, the ohmmeter is supplied with power by 24V, but the voltage of a test end cannot be shared with an instrument, so that the resistor needs to be connected with a single-pole double-throw switch (a change-over switch) for switching the resistor to be connected with the instrument or the instrument, and the positive electrode of the circuit needs to be blocked by a blind plug in order to prevent short circuit.
Referring to fig. 6, fig. 6 is a schematic diagram of a vehicle speed display module according to an exemplary embodiment of the utility model.
In fig. 6, the vehicle speed display module includes:
the second voltage conversion sub-module is used for converting the power supply voltage into a second voltage;
a pulse generator for outputting a pulse signal with the second voltage as an input voltage;
the pulse signal terminal is connected with the output end of the pulse generator and used for connecting the tested automobile instrument.
The vehicle speed display is realized through pulses, a pulse generator is needed, and because the pulse value identified by the vehicle is 12V, the pulse generator is connected after a 24V-to-12V voltage conversion module is needed, whether the vehicle speed display is accurate or not is judged by adjusting the frequency of the pulse generator and combining with the specification of instrument design, and the pulse generator can also be used for generating a vehicle speed signal when the vehicle speed signal is needed.
The automobile instrument detection equipment provided by the utility model CAN achieve the purposes of controllable switching value of the whole automobile, linearly adjustable analog quantity and clear and output accurate numerical value, has a CAN line interface, CAN realize the communication between the instrument and a CAN box, CAN test whether menu keys on a steering wheel are accurate or not, and CAN test whether an oil level sensor is accurate or not, so that the working efficiency and the accuracy are greatly improved compared with the prior art that the instrument is assembled on the whole automobile.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. It is therefore intended that all equivalent modifications and changes made by those skilled in the art without departing from the spirit and technical spirit of the present utility model shall be covered by the appended claims.
Claims (10)
1. An automobile instrument detection apparatus, characterized in that the detection apparatus comprises:
the power input end is used for connecting an external input power supply;
the switching value control area comprises at least one measuring unit, wherein the measuring unit comprises a positive electrode end, a negative electrode end and a torsion switch, the positive electrode end is connected with a positive voltage of an input power supply, and the negative electrode end is grounded; the torsion switch is connected with the positive electrode end or the negative electrode end;
an analog control area, the analog control area comprising: the device comprises an input voltage display module, an air pressure display module, an oil level display module and a vehicle speed display module; the input voltage display module is used for displaying input voltage, the air pressure display module is used for displaying a first voltage value representing tire pressure, the oil level display module is used for displaying a second voltage value representing oil level, and the vehicle speed display module is used for displaying pulse frequency representing vehicle speed.
2. The automobile instrument detection device according to claim 1, wherein the measurement unit further comprises a current limiting resistor, one end of the current limiting resistor is connected with the torsion switch, and the other end of the current limiting resistor is connected with a wiring terminal of the automobile instrument to be detected through a cable.
3. The automobile instrument detection apparatus according to claim 1, characterized in that the detection apparatus further comprises: and the current fuse is used for being connected with the power input end in series.
4. The automobile instrument detection device of claim 1, wherein the input voltage display module is a direct current voltage meter connected in parallel with the power input terminal.
5. The apparatus according to any one of claims 1 to 4, characterized in that the apparatus further comprises: a key module, the key module comprising: the automobile instrument to be tested is connected with the keys through the key interface.
6. The automobile instrument detection apparatus according to claim 5, characterized in that the detection apparatus further comprises:
an SAE1939 interface, and the tested automobile instrument is communicated with the CAN box through the SAE1939 interface;
the K line interface is used for communicating the tested automobile instrument with the diagnostic instrument;
and the oil level sensor is connected with the oil level display module through the oil level sensor interface.
7. The automobile instrument detection device according to claim 6, wherein the key module comprises a plurality of key units, and the key units are connected with wiring terminals of the automobile instrument to be detected; each key unit comprises a key and a resistor, and the key is connected with the resistor in series.
8. The apparatus according to claim 6, wherein the air pressure display module includes:
the first voltage conversion sub-module is used for converting the power supply voltage into a first voltage value;
and the display sub-module is used for displaying the first voltage value.
9. The automobile instrument detection apparatus according to claim 6, wherein the oil level display module includes: the device comprises an adjustable resistor, an adjustable resistor measurement display sub-module, a change-over switch and a tested automobile instrument connecting end;
the change-over switch comprises a first switching gear and a second switching gear, and when the change-over switch is in the first switching gear, the adjustable resistance measurement submodule is connected in parallel with two ends of the adjustable resistance; when the change-over switch is in the second gear-shifting position, the connecting ends of the tested automobile instrument are connected in parallel with the two ends of the adjustable resistor.
10. The apparatus according to claim 6, wherein the vehicle speed display module includes:
the second voltage conversion sub-module is used for converting the power supply voltage into a second voltage;
a pulse generator for outputting a pulse signal with the second voltage as an input voltage;
the pulse signal terminal is connected with the output end of the pulse generator and used for connecting the tested automobile instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320122686.6U CN219608057U (en) | 2023-02-06 | 2023-02-06 | Motormeter check out test set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320122686.6U CN219608057U (en) | 2023-02-06 | 2023-02-06 | Motormeter check out test set |
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| Publication Number | Publication Date |
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| CN219608057U true CN219608057U (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320122686.6U Active CN219608057U (en) | 2023-02-06 | 2023-02-06 | Motormeter check out test set |
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| CN (1) | CN219608057U (en) |
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2023
- 2023-02-06 CN CN202320122686.6U patent/CN219608057U/en active Active
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