CN209945396U

CN209945396U - Instrument test system

Info

Publication number: CN209945396U
Application number: CN201920984197.5U
Authority: CN
Inventors: 江雁; 陈兆敏; 环翾; 艾陈
Original assignee: Shanghai Electric Vehicle Electronic System Co Ltd
Current assignee: CHONGQING DELCO ELECTRONIC INSTRUMENT Co.,Ltd.
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-01-14
Anticipated expiration: 2029-06-27

Abstract

The utility model discloses an instrument test system, including power module, resistance module, test box module, wire harness module and processing module, each module all connects on the test box module through wire harness module, and processing module is used for monitoring and display instrument's state information and provides first signal and second signal to the instrument, and first signal is used for lighting simultaneously whole pilot lamps and the liquid crystal display of instrument, second signal are used for adjusting the gauge outfit of instrument, can go up all pilot lamps and liquid crystal display by disposable instrumentation, need not look for the control signal of every pilot lamp again, then click one by one and light single pilot lamp. The utility model provides an instrument test system is efficient, maneuverability is strong, has improved production design efficiency greatly, has reduced the human cost, is fit for using widely by a large scale.

Description

Instrument test system

Technical Field

The utility model belongs to the technical field of automotive electronics, especially, relate to an instrument test system.

Background

With the continuous development of the automobile industry, the functions of automobile instruments are more and more, and the requirements of the market on the function test of the instruments are higher and higher. The pressure of manual testing is increasing, and the uncertainty and randomness of manual testing lead to that a great amount of manpower and time are needed to ensure the accuracy of testing for thoroughly verifying the functions of the automobile instrument.

As is known, before the instrument leaves a factory, various analog signals are often transmitted to verify hardware and software functions of the instrument, so as to ensure a sampling state of the instrument. In the prior art, signal transmission and verification are mostly selected one by one, and along with the increase of the functions of the instrument, the consumed time is more and more, more labor cost expenditure is caused, and the urgent project node requirements are more and more difficult to meet. Particularly, in the detection link of the indicator lights, an operator needs to look up the control signal of each indicator light according to a pre-established calibration standard, and then click and light a single indicator light one by one. Often, a lot of time and energy are consumed after one-time process, the complicated process is very unfriendly for non-professionals, for example, operators in the production line need to execute according to the complicated process when carrying out factory detection on the instrument, the production sample delivery efficiency is greatly reduced, and errors are easy to make in the detection process.

Therefore, it is desirable to provide a meter testing system that is simple to operate.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an instrument test system for solve among the prior art because the flow is loaded down with trivial details, operate complicated scheduling problem.

In order to solve the technical problem, the utility model provides an instrument testing system for testing instruments, which comprises a power module, a resistance module, a testing box module, a wiring harness module and a processing module;

the resistance module, the power supply module, the processing module and the instrument are all connected with the test box module through the wiring harness module;

the power supply module is used for supplying power to the instrument and the processing module;

the resistance module is used for providing a resistance signal to transmit an analog sensor signal to the instrument;

the test box module is used for providing a connector of the wiring harness module;

the wire harness module is connected with the instrument, the power supply module, the resistance module, the test box module and the processing module by the connector;

the processing module is used for monitoring and displaying state information of the instrument and providing a first signal and a second signal for the instrument, the first signal is used for simultaneously lightening all indicator lights and liquid crystal displays of the instrument, and the second signal is used for adjusting a gauge head of the instrument;

and the instrument feeds back the state information to the processing module according to the analog sensor signal, the first signal and the second signal.

Optionally, the analog sensor signal includes a fuel sensor signal and a temperature sensor signal.

Optionally, the status information includes indicator light information, header information, and liquid crystal display information.

Optionally, the meter head information includes speedometer information, tachometer information, water temperature meter information and fuel meter information.

Optionally, the processing module includes a bus tool and a terminal;

the bus tool is used for providing the first signal and the second signal for the instrument, and the terminal is used for monitoring and displaying the state information of the instrument.

Optionally, the bus agent comprises a Neo VI Fire.

Optionally, the resistance module comprises a resistance box for providing a resistance signal to transmit an analogue sensor signal to the meter.

The utility model provides an instrument test system, including power module, resistance module, test box module, wire harness module and processing module, each module all connects on the test box module through wire harness module, and processing module is used for monitoring and display instrument's state information and provides first signal and second signal to the instrument, and first signal is used for lighting simultaneously whole pilot lamps and the liquid crystal display of instrument, second signal are used for adjusting the gauge outfit of instrument, can go up all pilot lamps and liquid crystal display by disposable detecting instrument, need not look for the control signal of every pilot lamp again, then click one by one and light a single pilot lamp. The utility model provides an instrument test system is efficient, maneuverability is strong, has improved production design efficiency greatly, has reduced the human cost, is fit for using widely by a large scale.

Drawings

Fig. 1 is a schematic diagram of a meter testing system according to an embodiment of the present invention;

fig. 2 is a flowchart of a meter testing method according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a partial graphical interface of an instrument testing system according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a partial graphical interface of a meter testing system according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a partial graphical interface of a meter testing system according to an embodiment of the present invention;

10-a power supply module, 20-a resistance module, 30-a test box module, 40-a wiring harness module, 50-a processing module and 60-an instrument.

Detailed Description

The following description of the embodiments of the present invention will be described in more detail with reference to the drawings. Advantages and features of the present invention will become apparent from the following description and claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

As shown in fig. 1, the present invention provides an instrument testing system, which includes a power module 10, a resistor module 20, a testing box module 30, a wiring harness module 40, and a processing module 50. The resistance module 20, the power module 10, the processing module 50 and the meter 60 are all connected with the test box module 30 through the wiring harness module 40. The power module 10 is configured to supply power to the meter 60 and the processing module 50, and the resistance module 20 is configured to provide a resistance signal to transmit an analog sensor signal to the meter 60. Test box module 30 is configured to provide a connector for harness module 40, and harness module 40 is configured to connect meter 60, power module 10, resistor module 20, test box module 30, and processing module 50 using the connector. The processing module 50 is configured to monitor and display status information of the meter 60 and provide a first signal and a second signal to the meter 60, where the first signal is used to light all the indicator lights and lcd displays of the meter 60 at the same time, and the second signal is used to adjust the gauge outfit of the meter 60. The meter 60 feeds back the status information to the processing module 50 based on the analog sensor signal, the first signal, and the second signal.

Utilize the embodiment of the utility model provides an instrument test system can be all on the disposable instrumentation 60 pilot lamp and liquid crystal display, need not seek the control signal of every pilot lamp again, then click one by one and light single pilot lamp. The system has high detection efficiency and strong operability, greatly improves the production sample mixing efficiency, reduces the labor cost, and is suitable for large-area popularization and use.

Optionally, in the embodiment of the present invention, the power module 10 may be a power box for providing a power input of the system. The ignition input and the power input to the processing module 50 are provided primarily to the battery of the meter 60, while also providing high and low level inputs in the verification link. In the detection process, the power box is connected to the test box module 30, and the processing module 50 and the meter 60 are powered through the wiring harness module 40. The power box can generally select a 30V5A adjustable DC voltage-stabilizing and current-stabilizing power supply, and the electrical parameters can be selected as follows: input voltage: AC220V, output voltage: DC 0-30V, voltage resolution: 100mV, output current: 0-5A, current resolution: 10mA, and an LED can be arranged on the power supply box to directly display the current value of the voltage and the current. Of course, the power box is not limited to such parameters, and needs to be selected according to actual needs.

Optionally, the resistor module 20 may select a resistor box for providing a resistor signal input to simulate a signal input of a fuel sensor, an outdoor temperature sensor, and the like. The analog sensor signals may include a fuel sensor signal and a temperature sensor signal. The resistance box is connected to the test box module 30, and fuel gauge and outdoor temperature display signals are provided for the gauge 60 through the wiring harness module 40. The embodiment of the utility model provides an in the resistance box can select the many resistance resistors of rotation type direct current, the control range: 9 × (0.1+1+10+100+1000+10000) Ω. Of course, the resistance box is not limited to the adjusting range and needs to be selected according to actual needs.

The test box module 30 can be divided into A, B areas, each area has two rows of five-color patch holes, the same color patch hole in the same area is connected with the same color patch hole line, the middle of A, B area is provided with 5 switches, and the switches can control the connection of the same color patch holes in the two areas, so that the KL15 or the KL30 can be conveniently operated by shifting the switches, the KL15 represents a Z ü ndschlos signal, namely an engine ignition signal (corresponding to the IGN state of a car key) and a car key twist and a car starting signal, most Electronic Control Units (ECUs) need to be operated in the car starting state, such as the ECU, the ABS, the KL, the ABM and the like of a chassis system, 30 is an ECU power supply source (namely the ECU is connected to a car battery), provides the working voltage of the ECU, and generally 9V 16V, and the working state of the car key can be operated in the car key OFF state, such as BCM OFF state.

The harness module 40 may optionally utilize a harness for connecting the meter 60 to a test system. It should be noted that the number of pins of the wiring harness needs to be selected according to the needs of the particular meter 60. For example, if the meter 60 is a 32PIN meter, a 32PIN harness is selected accordingly. The wire harness has the advantages that 32 PINs are led out independently by the wire harness, and each wire is connected with a connector independently, so that independent processing of each PIN and different processing of each same-number PIN of different meters 60 can be realized, namely the universality of the wire harness on all 32PIN connectors is realized. The 24PIN, 40PIN and other wire harnesses are the same, and each tester can complete the test switching of all the combination instruments 60 with the same PIN number by only one set of wire harness, so that the efficiency is obviously improved, the reconnection of the whole system is not needed, and the adjustment of a small part of connecting PINs can be completed only according to different PIN definitions. A defined PIN PIN wire harness and a defined test box are connected by adopting a connecting wire, so that test equipment such as power supply access, bus access, resistance access, level signal access and the like and test signal access are realized.

The meter 60 generally displays the lighting condition of the indicator light, the indication condition of the meter head, the information displayed by the liquid crystal (such as the total mileage and the maintenance mileage information), and the like, and the bus signal is transmitted and received. The embodiment of the utility model provides an in the instrument 60 of chooseing for use include red, yellow, blue, green 4 colour pilot lamps, speedometer, tachometer, temperature table, fire 4 gauge outfits of fuel gauge, by step motor drive pointer instruction and 3.5 cun liquid crystal display driving information.

Optionally, the processing module 50 includes a bus tool and a terminal. The bus tool is used to provide the first signal and the second signal to the meter 60, and the terminal is used to monitor and display status information of the meter 60.

It should be noted that, in the embodiment of the present invention, the bus tool is a Neo VI Fire, and certainly, the bus tool is not limited to use of the Neo VI Fire, and may also be a CANoe, which is not limited herein. And (3) connecting a power line of the Neo VI Fire to the test box, connecting the CAN bus with the wire harness, and matching with the Vehicle Spy software in the terminal to realize the control of the bus signal on the instrument 60 and complete the verification process. The terminal generally selects a computer or intelligent hardware with a processing function, earlier developers generally select to use the computer for realizing programming control, graphical interface drawing, bus signal control and signal monitoring, generally, functional Vehicle Spy software is used for supporting Neo VI Fire hardware in the computer, programming realizes automatic verification control, drawing a verification graphical interface and realizing network signal monitoring. The embodiment of the utility model provides an in, accomplish the automatic check algorithm compilation in the vessel Spy software, real time monitoring network bus signal to use software design main part operation graphical interface, generate vs3 file, conveniently shift to other computers or the operation of accomplishing on the industrial computer, realized strong portability, the interface is friendly. And operating personnel can choose to use the industrial personal computer, realize graphical interface operation and signal monitoring, and the operation is more simple and convenient.

As shown in fig. 2, aiming at the above-mentioned instrument testing system, the embodiment of the present invention further provides an instrument testing method, which utilizes any one of the above-mentioned feature descriptions of the instrument testing system, including the steps of:

s1: the processing module 50 sends a first signal to the meter 60;

s2: judging whether the state information is normal, if so, entering S3, and if not, entering S7;

s3: the processing module 50 sends a second signal to the meter 60;

s4: judging whether the state information is normal, if so, entering S5, and if not, entering S7;

s5: the processing module 50 resets the meter 60;

s6: judging whether the instrument 60 is successfully reset, if so, ending the process, otherwise, entering S7;

s7: the meter 60 is analyzed and processed and returns to S1.

In the traditional instrument testing method, the indicator lamps need to be checked to set standards, control signals of each indicator lamp are searched, the single indicator lamp is clicked one by one to be lightened to test the indicator lamps one by one, and the process is complicated and easy to make mistakes. The utility model provides an utilize above-mentioned instrument test system among the instrument test method, utilize processing module 50 can set up the pilot lamp and walk the button of looking into, relevant vessel Spy software compiles the flow in vessel Spy software, and every pilot lamp of compiling is lighted the order one by one, only needs to click a button, processing module 50 can send first signal to instrument 60, just can light all pilot lamp operations automatically. The DBC file of the signal CAN be introduced into the software, and is a CAN message signal format and a standard format of a signal matrix, wherein the DBC file comprises specific contents of messages and signals received and sent by each ECU in a vehicle-mounted network. After programming, the controller CAN use the CAN signal to control, compile Script on the Function Blocks page of the Vehicle Spy software, and then perform Function association on a graphical interface, in the embodiment of the utility model, the 3.6 version of the Vehicle Spy software is used as an example for explanation, and part of program codes are as follows:

the code of the ESC OFF indicator light is as follows:

Set Value{WarningMessageID_ESC(Value):out34-sig1-0}＝70

Transmit WarnMsg_ESC

Wait For 0.100000 sec

the code of the engine indicator lamp is as follows:

Set Value{WarningMessageID_EMS(Value):out36-sig1-0}＝54

Transmit WarnMsg_EMS

Wait For 0.100000 sec

the code of the tire pressure indicator lamp is as follows:

Set Value{WarningMessageID_BCM(Value):out37-sig1-0}＝84

Transmit WarnMsg_BCM

Wait For 0.100000 sec

the code of the oil pressure indicator lamp is as follows:

Set Value{WarningMessageID_EMS(Value):out36-sig1-0}＝79

Transmit WarnMsg_EMS

Wait For 0.100000 sec

the code of the coolant temperature indicator lamp is as follows:

Set Value{WarningMessageID_EMS(Value):out36-sig1-0}＝36

Transmit WarnMsg_EMS

Wait For 0.100000 sec

the code of the parking indicator lamp is as follows:

Set Value{WarningMessageID_ESC(Value):out34-sig1-0}＝8

Transmit WarnMsg_ESC

Wait For 0.100000 sec

the code for the AutoHold indicator lamp is as follows:

Set Value{WarningMessageID_ESC(Value):out34-sig1-0}＝11

Transmit WarnMsg_ESC

Wait For 0.100000 sec

the codes only list the lighting control codes of the ESC OFF indicator lamp, the engine indicator lamp, the tire pressure indicator lamp, the oil pressure indicator lamp, the coolant temperature indicator lamp, the parking indicator lamp and the auto hold indicator lamp, and the indicator lamp codes of a plurality of automobile instruments are similar to the codes. For example, there may be a tire pressure warning indicator lamp, a seatbelt warning indicator lamp, or a left turn signal lamp, etc. By programming all the lighting codes of the indicator lamps and matching with the processing module 50, the processing module 50 can automatically light all the indicator lamps for operation by sending a first signal to the meter 60 only by clicking one button.

It is also possible to determine if there is a malfunction of the indicator light, but it should be noted that both the text prompt and the audible alarm of the meter 60 can be detected while the indicator light of the meter 60 is being detected. The hardware circuit and the LED components are checked, and simultaneously, the contents of liquid crystal display, bus communication, a loudspeaker and the like are checked. Other hardware inputs such as keys, outdoor temperature, etc., if any, need to be detected separately. If the hardware input relates to header display, detection can be achieved in the header check portion without separate detection. The embodiment of the utility model provides a test method is efficient, maneuverability is strong, has improved production design efficiency greatly, has reduced the human cost, is fit for using widely by a large scale.

Optionally, the S1 may specifically include:

s11: judging whether the instrument 60 is the full liquid crystal instrument 60, if so, entering S12, otherwise, entering S14;

s12: checking the liquid crystal display of the meter 60;

s13: judging whether the instrument 60 has a display dead pixel, if so, entering S7, and if not, ending the process;

s14: the processing module 50 sends a lighting command to all the indicator lights and lcd displays of the meter 60 simultaneously.

In the non-full liquid crystal combination meter 60, the indicator lights are generally displayed by partially or fully lighting the LEDs, and each LED needs to be inspected to synchronously inspect the functions of bus communication, speakers and the like. If the non-LED indicator light is triggered by a hardware signal, the indicator light also needs to be lightened to check whether a hardware circuit has a problem. For the full liquid crystal instrument 60, only the hardware trigger indicator lamp needs to be checked, and the screen dead pixel is checked.

Optionally, the S3 may further include:

s31: carrying out safety algorithm verification;

s32: judging whether the verification is successful, if so, entering S33, otherwise, returning to S31;

s33: the processing module 50 performs a header check on the meter 60.

Optionally, the S33 may further include:

s331: the part number and software and hardware version number of the read-write instrument 60;

s332: the functional module configuration of the read-write meter 60 to match different meters 60;

s333: the processing module 50 performs a header check on the meter 60.

As shown in fig. 5, after the indicator light detection is completed, the processing module 50 sends a second signal to the meter 60, and the meter calibration module finely adjusts the fixed position of the pointer in the speedometer, the tachometer, the fuel gauge and the water temperature gauge. The speedometer, the tachometer, the water thermometer and the fuel gauge are provided with 4 gauge heads and are indicated by a pointer driven by a stepping motor, in the traditional instrument testing method, a gauge head checking part needs to carry out manual input numerical value addition and subtraction on each check point in Tx, modifies the check points once and sends an instruction, and carries out repeated operation, so that the calibration of the stepping motor displacement is realized. The embodiment of the utility model provides a method can be in integrated check-up interface, lists the check point, adds and subtracts to correspond step motor forward or a little step of backward movement respectively, and relevant corresponding operating procedure clicks button in the interface and can realize check point step motor action, eliminates step motor and instructs the deviation in order to accomplish the gauge outfit check-up to instrument 60. After the meter head is verified, the zero clearing and resetting of the meter 60 are generally performed, and the zero clearing and resetting are mainly performed for the total mileage and the maintenance mileage of the meter 60.

Optionally, in order to ensure the safety of the subsequent detection process, the safety algorithm verification may be performed after the indicator light is detected, and meanwhile, the verification code verification may be set. After the login verification is successful, the information of the meter 60 can be written. Clicking each button in the interface, writing in part numbers and software and hardware numbers to perform version management on the instrument 60, if checking is performed in the production line, writing in production date and production line numbers on the industrial personal computer, and then performing quality tracing and after-sale management. After the information is written in, whether the information is correctly written in the reading process can be checked, and real-time monitoring can be carried out through an information frame in a graphical interface.

As shown in fig. 3 to 5, the meter 60 with different functional requirements may be configured for factory functions, which is generally configured as a default, that is, a default configuration box is clicked to check whether the configuration is successful. For different function requirements, each configuration item is separated, and is arranged one by one according to bit bits, and the configuration of a single function is realized by associating corresponding software. The operation of calculating the byte value written in each bit by contrasting the configuration table in the common verification is omitted.

It should be noted that, in any link of the above process, if the detection result does not meet the expected operation, a problem is selected for analysis and processing, and the problem needs to be retested after being eliminated.

The utility model provides a method compares with traditional approach, the simple operation, and the check-up time obviously shortens, can not omit the link. In the operation process, data such as function specifications or debugging signals do not need to be consulted, and the operation can be completed only by simple operation, so that the requirement on professional knowledge is eliminated, and the use population and the use place are enlarged. The method does not need an engineer to complete a lengthy calibration process in an office or a laboratory, and a production line worker and the like can also quickly complete calibration in a required place, so that the method can be widely applied to the production life cycle. The sample exchanging device is suitable for instruments of different models, comprehensive in flow and universal, can be continuously operated only by changing configuration on a computer or an industrial personal computer when sample pieces are replaced, is high in efficiency and strong in operability, greatly improves production sample exchanging efficiency, reduces labor cost, and is suitable for large-area popularization and use.

To sum up, the utility model provides an instrument test system, including power module, resistance module, test box module, pencil module and processing module, each module all connects on the test box module through pencil module, and processing module is used for monitoring and display instrument's state information and provides first signal and second signal to the instrument, and first signal is used for lighting simultaneously whole pilot lamps and the liquid crystal display of instrument, second signal are used for adjusting the gauge outfit of instrument, can all pilot lamps and liquid crystal display on the disposable instrumentation, need not look for the control signal of every pilot lamp again, then click one by one and light single pilot lamp. The utility model provides an instrument test system is efficient, maneuverability is strong, has improved production design efficiency greatly, has reduced the human cost, is fit for using widely by a large scale.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example" or "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. And the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.

Claims

1. An instrument test system is used for testing an instrument and is characterized by comprising a power supply module, a resistance module, a test box module, a wiring harness module and a processing module;

2. The meter testing system of claim 1, wherein the analog sensor signals include a fuel sensor signal and a temperature sensor signal.

3. The meter testing system of claim 1, wherein the status information includes indicator light information, header information, and liquid crystal display information.

4. The meter testing system of claim 3, wherein the header information includes speedometer information, tachometer information, water temperature meter information, and fuel meter information.

5. The meter test system of claim 1, wherein the processing module comprises a bus tool and a terminal;

6. The meter test system of claim 5, wherein the bus agent comprises a NeoVIFire.

7. The meter testing system of claim 1, wherein the resistance module comprises a resistance box for providing a resistance signal for transmitting an analog sensor signal to the meter.