CN111487484B - Automobile part testing device, testing method and production line - Google Patents
Automobile part testing device, testing method and production line Download PDFInfo
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- CN111487484B CN111487484B CN201910257724.7A CN201910257724A CN111487484B CN 111487484 B CN111487484 B CN 111487484B CN 201910257724 A CN201910257724 A CN 201910257724A CN 111487484 B CN111487484 B CN 111487484B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention provides an automobile part testing device, a testing method and a production line.A main control chip of the device can sample the output voltage of a potentiometer through an analog-to-digital conversion interface, generate a step number control signal according to the output voltage, realize the communication between the main control chip and an automobile part to be tested through an LIN interface and an LIN bus transceiver, control the automobile part to be tested to realize corresponding action, receive a position feedback signal sent by the automobile part to be tested and send the position feedback signal to a display module through a display interface of the main control chip for displaying, and further finish the test of the automobile part to be tested. The automobile part testing equipment has the advantages of small occupied area, easiness in carrying and low implementation cost; in addition, the test process can be completed by the automobile part test equipment only by operating the potentiometer by an operator, so that the requirement on labor cost is reduced.
Description
The present application claims priority of chinese patent application entitled "an apparatus and method for testing automobile parts" filed by chinese patent office on 28/01/2019 under application number 201910079652.1, the entire contents of which are incorporated herein by reference.
Technical Field
The invention relates to the technical field of power electronics, in particular to automobile part testing equipment, a testing method and a production line.
Background
Currently, in the development and test process of various automobile parts, such as electronic expansion valves, water valves, etc., a professional test tool capable of simulating the running environment of an actual automobile is usually required to perform a functional test on the automobile parts.
The general professional testing tool is composed of a software part and a hardware part, wherein the software part is usually PC software, a user sends a testability control signal to a hardware module through interfaces such as a USB after editing the content of the testability control signal at a PC end, and the hardware module forwards the control signal to a target product to be tested according to a related communication protocol; after receiving the control signal, the target product analyzes the control signal and makes a corresponding action according to an analysis result; meanwhile, the target product can also send the running state of the target product to the hardware module through a feedback signal, and the hardware module of the test tool forwards the feedback signal to the PC terminal, so that the user can know the running state of the target product.
Disclosure of Invention
The invention provides an automobile part testing device, an automobile part testing method and an automobile part production line.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an automobile part testing apparatus comprising:
the electronic device comprises a shell, a circuit board, a potentiometer and a display module, wherein the circuit board, the potentiometer and the display module are arranged in the shell; wherein:
the circuit board comprises: the main control chip and the LIN bus transceiver;
the main control chip comprises: the device comprises an analog-to-digital conversion interface, a LIN interface, a display interface and a processing unit;
the analog-to-digital conversion interface is electrically connected with the output end of the potentiometer, the LIN interface is electrically connected with the LIN bus transceiver, and the display interface is electrically connected with the display module;
the processing unit is electrically connected with the analog-to-digital conversion interface, the LIN interface and the display interface, and can obtain the output voltage of the potentiometer through sampling of the analog-to-digital conversion interface, generate a step number control signal according to the output voltage and send the step number control signal through the LIN interface and the LIN bus transceiver; the processing unit can receive position feedback signals through the LIN bus transceiver and the LIN interface, and then send the position feedback signals to the display module through the display interface to be displayed.
The method for testing the automobile parts comprises the steps of electrically connecting the automobile part testing equipment according to the technical scheme with the automobile parts to be tested;
the processing unit of the automobile part testing equipment sends a control signal to the tested automobile part;
the tested automobile part receives the control signal and executes an instruction, and the tested automobile part sends position information to the processing unit;
the processing unit receives the position information and sends the position information to a display module of the automobile part testing equipment, and the display module displays the position information.
The utility model provides an automobile parts production line, includes test station, test station includes control cabinet, mount and according to above-mentioned technical scheme automobile parts test equipment, the mount with automobile parts test equipment is located the control cabinet, automobile parts is located the mount, automobile parts test equipment with automobile parts communication connection.
The automobile part testing equipment provided by the technical scheme has the advantages that the main control chip of the circuit board in the shell can sample the output voltage of the potentiometer in the shell through the analog-to-digital conversion interface of the main control chip, generate the step number control signal according to the output voltage and send the step number control signal through the LIN interface of the main control chip and the LIN bus transceiver of the circuit board, and the main control chip can also receive the position feedback signal through the LIN bus transceiver and the LIN interface and send the position feedback signal to the display module in the shell through the display interface of the main control chip for displaying, so that the automobile part testing equipment can be used for testing a certain automobile part, as the testing equipment has the functions of sampling voltage, generating the step number control signal, sending the signal out, receiving the position feedback signal and displaying the position feedback signal on the display module, the whole testing process is simple, the test is convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of an automobile part testing apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an automobile part testing apparatus according to another embodiment of the present invention;
FIG. 3 is a schematic diagram of a system architecture of an automobile component testing apparatus according to another embodiment of the present invention;
FIG. 4 is a schematic diagram of an operation mode of an automobile parts testing device according to another embodiment of the present invention;
fig. 5 is a schematic view of an automobile parts manufacturing line according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, the automobile parts testing apparatus includes: a case (not shown), a circuit board (not shown) provided inside the case, and a potentiometer 201 and a display module 202 provided in the case; wherein:
the input end of the potentiometer 201 receives corresponding power supply, the manual control is performed on the potentiometer by an operator, the output end of the potentiometer generates corresponding output voltage, the value range of the output voltage can be 0-5V, and the limitation is not specifically limited.
The circuit board is provided with: a main control chip 101 and a LIN bus transceiver 102; the main Control chip 101 may be an MCU (Micro Control Unit), but is not limited thereto. The master chip 101 may also be integrated with the LIN bus transceiver 102, i.e., both are a single piece.
The main control chip 101 is provided with: the device comprises a processing unit, an analog-to-digital conversion interface, a LIN interface and a display interface; the display module 202 may use a 4-bit nixie tube display interface to realize the display, which is not limited to this.
The processing unit is electrically connected with the output end of the potentiometer 201 through an analog-to-digital conversion interface, the processing unit is electrically connected with the LIN bus transceiver 102 through a LIN interface, and the processing unit is electrically connected with the display module 202 through a display interface.
In practical application, after the automobile part testing device is powered on, if the automobile part to be tested has a corresponding initialization strategy, the main control chip 101 sends a related command according to the initialization strategy to control the automobile part to complete initialization. Meanwhile, the processing unit starts to acquire the output voltage of the potentiometer 201 through the analog-to-digital conversion interface; the display module 202 displays the current position information of the automobile part to be tested.
After initialization is completed, a main circulation mode is entered, in this mode, the processing unit completes information conversion according to the sampling result of the voltage output by the potentiometer 201 in the sampling result and step number full-range corresponding table (self-defined according to automobile parts) to obtain a corresponding step number value, and a step number control signal is generated according to the step number value.
If the analog-to-digital conversion interface adopts 10bit sampling precision, the value range is 0-1023; the valve body stroke step number range of the automobile part to be tested is 0-576; then, when the sampling result is data, the corresponding step value calculation formula is:
Step＝round[(576÷1023)×data]。
if the data beyond the threshold exists, the processing unit processes the data and converts the processed data into a normal step number value.
According to the information about the signal definition in the corresponding configuration file, the processing unit transmits the step number control signal to a corresponding command frame, and the step number control signal is sequentially sent to the controller unit of the first type of automobile parts to be tested through the LIN interface and the LIN bus transceiver 102 to control the running state of the first type of automobile parts to be tested. The first type of automobile parts to be tested can be integrated products which are used more in practical application environments, and the integrated products comprise valves and controller units for controlling the operation of the valves, such as electronic expansion valves with control boards (provided with the controller units), fluid switching valves, fluid control valves and the like.
When the position of the first type of automobile part to be tested changes, the controller unit of the first type of automobile part to be tested outputs a position feedback signal; the processing unit receives the position feedback signal sequentially through the LIN bus transceiver 102 and the LIN interface, and sends the position feedback signal to the display module 202 through the display interface for display. The position condition of the first type of automobile part to be tested is obtained through the information displayed in the display module 202, so that the performance of the first type of automobile part to be tested can be judged.
The automobile part testing equipment provided by the embodiment has the advantages of small occupied area, easiness in carrying and low implementation cost; in addition, the test process can be completed by the automobile part test equipment only by operating the potentiometer 201 by an operator, so that the requirement on labor cost is reduced to a great extent, and the test process is simple and convenient to operate.
Referring to fig. 1, the automobile part testing apparatus further includes: an operation module 203 arranged on the shell; correspondingly, the main control chip 101 further includes: an input/output interface; the input/output interface is electrically connected with the operation module 203, the input/output interface is electrically connected with the processing unit, and the input/output interface can receive operation information sent by the operation module 203.
The operation module 203 may be configured in the form of a plurality of keys, such as a menu key, a page-turning key, a selection key, etc.; or, in practical application, the touch panel may be used, or the touch liquid crystal screen may be used to replace the plurality of keys and the potentiometer 201; it is not specifically limited herein, and is within the scope of the present invention, depending on the specific application environment.
Through the operation module 203, an operator can selectively input various operation information, such as test mode selection, step value setting of a circulation mode, valve body running direction control, valve body stroke position control, various enable signals and the like; it is not specifically limited, and is within the scope of the present invention, depending on the specific application environment.
If the operator presses the reset key on the operation module 203, the automobile part testing device will re-execute the above-mentioned testing process.
If the operation information input by the operator through the operation module 203 is the loop running mode in which the test mode is set to the loop action mode, the processing unit is further configured to: firstly, an initialization command of a first type of automobile part to be tested, such as an electronic expansion valve, a fluid switching valve, a fluid control valve and the like, is sent through an LIN interface and an LIN bus transceiver 102 in sequence; after the initialization of the corresponding first type of automobile parts to be tested is completed, the control command of the end-of-stroke position is sent to the time t0 through the LIN interface and the LIN bus transceiver 102 in sequence, and at the time when the time interval t1-t0 is greater than the time t1 of the stroke cycle, the valve body is in the end-of-stroke position, and then the control command of the 0 position is sent to the corresponding first type of automobile parts to be tested through the LIN interface and the LIN bus transceiver 102 in sequence. The cycle running mode can be realized by repeatedly executing the steps, and the method is mainly used for durability testing.
If the operation information input by the operator through the operation module 203 is the accurate circulation control mode in which the test mode is set to the circulation action mode, the operator can set the step value of the valve body operation to be delta step through the operation module 203 according to the actual requirement, the step value is plus or minus delta step when the corresponding function key on the operation module 203 is pressed for one time, and the valve body operation direction can be switched by pressing for 3s for a long time. For example, Δ step takes a value of 2; the valve body has a stroke of 0 to 576. At this time, the processing unit is further configured to: after the initialization of the first type of automobile parts to be tested is controlled to be completed sequentially through the LIN interface and the LIN bus transceiver 102, under the condition that corresponding function keys on the operation module 203 are pressed for a short time all the time, corresponding control instructions are sent sequentially through the LIN interface and the LIN bus transceiver 102 to control the valve body of the first type of automobile parts to be tested to be operated all the time, wherein the valve body of the first type of automobile parts to be tested is pressed by 0- >2- > … - >572- >574- >576- >574- >572- > … 4- >2- > 0; at any time, when the corresponding function button on the operation module 203 is pressed for 3s, the first type of automobile part to be tested is controlled to switch the operation direction of the valve body, for example, 0- >2- >4- > … - >100- >102 (pressed for 3s) - >100- >98- >96 … - >4- >2- >0, through the LIN interface and the LIN bus transceiver 102 in sequence. The mode is mainly used for valve body flow test.
If the operation information input by the operator through the operation module 203 is to set the test mode to the single LIN diagnostic function mode, in the single LIN diagnostic function mode, if the first type of automobile component to be tested has a fault, the processing unit is further configured to: the fault feedback signals sent by the first type of automobile parts to be tested are received sequentially through the LIN bus transceiver 102 and the LIN interface, and the fault feedback signals are sent to the display module 202 through the display interface to be displayed; in practical application, a corresponding fault code can be displayed. The mode is mostly used in the product batch test.
The processing unit is further configured to: the software information of the first type of automobile parts to be tested, such as the ID numbers, the version numbers and the like, is read sequentially through the LIN bus transceiver 102 and the LIN interface, and whether the software of the first type of automobile parts to be tested is correct or not is judged according to the software information.
It is worth to be noted that the automobile part testing device provided by the above embodiment is suitable for occasions where basic functions are realized, such as flow control speed regulation of an electronic expansion valve and a fluid control valve; in practical applications, there may be other types of automobile parts to be tested or developed, so another embodiment of the present invention provides another automobile part testing apparatus, and on the basis of the foregoing embodiment and fig. 1, referring to fig. 2, the circuit board thereof is further provided with: a CAN bus transceiver 103;
correspondingly, the main control chip 101 further includes: a CAN interface;
the processing unit is still through this CAN interface and CAN bus transceiver 103 electric coupling, and at this moment, the processing unit still is used for: the step number control signal is sent to a second type of automobile part to be tested, such as an electronic expansion valve under CAN communication, through a CAN interface and a CAN bus transceiver 103 in sequence; and the position feedback signals sent by the second type of automobile parts to be tested are received through the CAN bus transceiver 103 and the CAN interface in sequence.
When the automobile part testing device further comprises the operation module 203 arranged on the shell, the processing unit is further used for: according to the operation information, a control instruction is sent to the second type of automobile parts to be tested through the CAN interface and the CAN bus transceiver 103 in sequence, and the second type of automobile parts to be tested are controlled to enter a circulating action mode or a single CAN diagnosis function mode; in the single CAN diagnosis function mode, if the second type of automobile parts to be detected have faults, the second type of automobile parts to be detected sequentially pass through the CAN bus transceiver 103 and the CAN interface to receive fault feedback signals sent by the second type of automobile parts to be detected.
The processing unit is further configured to: and sequentially reading the software information of the second type of automobile parts to be tested through the CAN bus transceiver 103 and the CAN interface, and judging whether the software of the second type of automobile parts to be tested is correct or not according to the software information.
The testing principle under the CAN communication is the same as that under the LIN communication in the previous embodiment, and the details are not repeated here.
By analogy, for a third type of automobile component to be tested, such as a water pump with PWM communication control, the automobile component testing apparatus is shown in fig. 2, and at this time, the processing unit is further configured to: and outputting corresponding PWM control signals to the third type of automobile parts to be tested through the PWM interface according to the operation information, such as the running state parameters or the driving enabling signals of the third type of automobile parts to be tested, and controlling the step number and the speed of the third type of automobile parts to be tested.
On the basis of the above-mentioned functionality, the processing unit is further operable to: the state feedback signal and the diagnosis feedback signal sent by the third type of automobile parts to be tested are received through the PWM interface, so that the current position information, the state information and the diagnosis information of the product are obtained, and the information can be displayed on the display module 202.
In practical application, part of water pump products only have a PWM signal input function and do not have a PWM signal output function, and at the moment, the automobile part testing equipment only realizes control over the water pump and cannot realize display of state information and diagnosis information.
Referring to fig. 2, the circuit board of the automobile part testing device is further provided with: a stepping motor driving chip 104;
at this time, the main control chip 101 further includes: a serial peripheral interface;
the processing unit is further electrically connected to the stepping motor driving chip 104 through the serial peripheral interface, and meanwhile, the processing unit can be further configured to: according to a driving enabling signal in the operation information, sequentially passing through the serial peripheral interface and the stepping motor driving chip 104 to output driving current outwards, controlling a fourth type of automobile part to be tested, namely a single motor product without a control strategy, and operating according to driving parameters in the operation information; for example, the driving of the single coil valve body assembly is realized according to the set parameters of the rotating speed, the driving capability and the like.
In addition, referring to fig. 2, the circuit board of the automobile part testing device may further include: a data storage module 105, such as a TF card;
correspondingly, the main control chip 101 further includes: a data storage interface; the data storage interface is electrically coupled to data storage module 105;
the processing unit is electrically connected with the data storage interface and enters a background storage mode after acquiring the storage function enabling signal in the operation information; in this mode, the processing unit stores data transmitted and received by itself in the data storage module 105 through the data storage interface by SPI communication. When the data storage module 105 is disabled, the data storage function is disabled.
The TF card adopts FAT file system, and can store the current configuration parameters, the feedback state of the valve body and the diagnosis information. After the test is finished, the stored data can be conveniently imported into a computer through the card reader.
Corresponding to the structure shown in fig. 2, the display module 202 may employ an LCD, such as an HY12864I-1LCD, to display the configuration item parameters and the customization information. And displaying the working state parameters and the diagnosis information of the valve body, wherein the working state parameters and the diagnosis information are not particularly limited.
Compared with the automobile part testing device shown in fig. 1, the automobile part testing device shown in fig. 2 has the advantages that the functions of PWM, CAN and independent motor control and data storage are added, and meanwhile, the original nixie tube display interface is updated to be displayed on an LCD, so that more complex functions such as mode selection, parameter setting and the like CAN be realized. Correspondingly, the system architecture is shown in fig. 3, and includes: bottom layer hardware, LIN physical sublayer, CAN physical sublayer, LCD display module hardware sublayer, motor drive physical sublayer, memory module physical sublayer, PWM control physical sublayer, SCI Interface (Serial Communication Interface for implementing LIN Interface in fig. 2), MSCAN Interface (CAN Interface in fig. 2), GPID (General Purpose Input/Output) Interface (i.e., Input/Output Interface in fig. 2), two SPI interfaces (Serial Peripheral Interface, i.e., Serial Peripheral Interface in fig. 2 electrically connected to stepping motor drive chip 104 and data storage Interface electrically connected to data storage module 105), another GPIO Interface (i.e., PWM Interface in fig. 2, and CAN analog-to-digital conversion Interface in fig. 2), drive function, LIN drive function, motor drive function, memory function, PWM function, memory function, and memory function, The connection relationship between the memory and the display interface (i.e. the display module 202 in fig. 2) is shown in fig. 3, which is not described in detail herein.
In the automobile parts testing apparatus shown in fig. 2 and 3, the basic operation mode is shown in fig. 4: entering power-on initialization, interface display basic information and version information of a processing unit, wherein the version information comprises information such as a factory default operation mode, an applicable product, a version number and the like, and can be customized according to user requirements; function selection and parameter setting are realized through a human-computer interaction interface (namely an operation module 203 in FIG. 2); entering a main control interface, and performing real-time control on the product through operating a key and a knob; the action execution unit (namely the controller unit of the corresponding automobile part to be tested) feeds back the current self state (the communication record storage function can be selected while controlling and feeding back); after all the operations, the LCD is executed to display the current information of the product.
The automobile part testing equipment provided by the embodiment realizes the strategy control of the action part through LIN communication; and the sampling value of the output voltage of the potentiometer 201 controls the relevant automobile parts to be tested to act according to the set value, thereby realizing OEM (Original Equipment Manufacturer) test. In addition, the feedback signal is read through the diagnosis service of LIN communication, whether the software is successfully burned can be determined, if the burning is successful, the display module 202 displays OK, and if not, NG. In practical application, a related diagnosis function can be added, a specific service command is sent to the automobile part to be tested, and the fed-back related information is displayed through the display module 202, so that the reading of the version number of the control system or the software is realized. Under the condition of realizing normal LIN communication and correct response frame, the relevant automobile parts to be tested can be controlled to act according to the specified parameters, and then DV (design verification) test is realized. Based on the above principle, other operation modes can be customized subsequently, which is not described herein again and is within the protection scope of the present invention.
By the principle, the automobile part testing equipment provided by the embodiment is simple to operate, does not need operators with professional backgrounds, is convenient to transport and carry, and reduces the development and testing costs of related products; the general control tool shown in fig. 2 and 2 has good reusability, and the communication modes are realized in a modularized way, so that subsequent function expansion (communication is performed by using a USB, a 232 serial port and a PC) and updating of software and hardware are facilitated.
The rest of the principle is the same as the above embodiments, and is not described in detail here.
Another embodiment of the present invention further provides a method for testing an automobile component, including:
electrically connecting the automobile part testing equipment of any embodiment with the automobile part to be tested;
the processing unit of the automobile part testing equipment sends a control signal to the tested automobile part; the control signal may be a signal sent by the automobile part testing device to any type of automobile part to be tested in any of the embodiments described above, and details are not repeated here.
The tested automobile part receives the control signal and executes the instruction, and the tested automobile part sends the position information to the processing unit;
the processing unit receives the position information and sends the position information to a display module of the automobile part testing equipment, and the display module displays the position information.
The information interaction process between the automobile part testing device and the automobile part to be tested can refer to the above embodiments, and details are not repeated here.
Referring to fig. 5, another technical scheme of the present invention provides an automobile part production line, which includes a test station, where the test station includes a console, a fixing frame, and an automobile part test device, where the fixing frame and the automobile part test device are located on the console, the automobile part is located on the fixing frame, and the automobile part test device is in communication connection with the automobile part.
The automobile parts can be the first type of automobile parts to be tested, and can also be the second type of automobile parts to be tested. The automobile part production line can be used for testing automobile parts to be tested, and can be provided with one test station or two or more test stations. The automobile part to be tested can be a finished product or a partial structure of the part to be tested. The automobile parts are tested through the production line, so that the production and the test of the parts are realized through the automobile parts production line, and the output products of the automobile parts production line are qualified products.
The embodiments of the invention are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments can be referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make many possible variations and modifications to the disclosed solution, or to modify equivalent embodiments, without departing from the scope of the solution, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (11)
1. An automobile part testing apparatus comprising:
the electronic device comprises a shell, a circuit board, a potentiometer and a display module, wherein the circuit board, the potentiometer and the display module are arranged in the shell; wherein:
the circuit board includes: the LIN bus transceiver, the analog-to-digital conversion interface, the LIN interface, the display interface and the processing unit;
the processing unit is electrically connected with the output end of the potentiometer through the analog-to-digital conversion interface, the LIN bus transceiver through the LIN interface and the display module through the display interface;
the processing unit can obtain the output voltage of the potentiometer through sampling of the analog-to-digital conversion interface, generate a step number control signal according to the output voltage, and then send the step number control signal through the LIN interface and the LIN bus transceiver; and a position feedback signal is received through the LIN bus transceiver and the LIN interface, and then the position feedback signal is sent to the display module through the display interface to be displayed.
2. The automobile part testing device of claim 1, further comprising an operating module disposed at the housing;
the circuit board includes main control chip, main control chip includes analog-to-digital conversion interface, LIN interface, display interface and processing unit, main control chip still includes: an input/output interface;
the processing unit is electrically connected with the operation module through the input/output interface, and can also receive operation information sent by the operation module, generate a control instruction according to the operation information, and send the control instruction through the LIN interface and the LIN bus transceiver; and the processing unit can also receive a fault feedback signal through the LIN bus transceiver and the LIN interface and send the fault feedback signal to the display module through the display interface for displaying.
3. The automobile part testing device as claimed in claim 1, wherein the circuit board comprises a main control chip, the main control chip comprises the analog-to-digital conversion interface, an LIN interface, a display interface and a processing unit, and under a detection condition, the main control chip is further capable of reading software information of an external first type of automobile part to be tested through the LIN bus transceiver and the LIN interface and judging whether software of the first type of automobile part to be tested is correct according to the software information.
4. The automobile part testing apparatus as set forth in any one of claims 1-3, wherein said circuit board further comprises: a CAN bus transceiver;
the circuit board includes main control chip, main control chip includes analog-to-digital conversion interface, LIN interface, display interface and processing unit, main control chip still includes: a CAN interface;
the processing unit is electrically connected with the CAN bus transceiver through the CAN interface and CAN also send the step number control signal through the CAN interface and the CAN bus transceiver; and the processing unit CAN also receive position feedback signals through the CAN bus transceiver and the CAN interface.
5. The automobile part testing device according to claim 4, wherein under a detection condition, the main control chip is further capable of reading software information of a second type of automobile part to be tested through the CAN bus transceiver and the CAN interface, and judging whether software of the second type of automobile part to be tested is correct according to the software information.
6. The automobile part testing device of claim 2, wherein the main control chip further comprises a PWM interface, and the processing unit is further capable of outputting a corresponding PWM control signal to a third type of automobile part to be tested through the PWM interface according to the operation information; the processing unit can also receive the state feedback signal and the diagnosis feedback signal sent by the third type of automobile parts to be tested through the PWM interface.
7. The automobile part testing apparatus as set forth in claim 2, wherein said circuit board further includes: a stepping motor driving chip;
the main control chip further comprises: a serial peripheral interface;
the processing unit is electrically connected with the stepping motor driving chip through the serial peripheral interface, and can also control a fourth type of automobile part to be tested to operate according to driving parameters in the operation information through the serial peripheral interface and the stepping motor driving chip according to driving enabling signals in the operation information.
8. The automobile part testing apparatus according to any one of claims 1 to 3 and 5 to 7, wherein the circuit board further includes: the main control chip and the data storage module;
the main control chip further comprises: a data storage interface;
the automobile part testing equipment also comprises an operation module, and the processing unit can also receive operation information sent by the operation module;
the processing unit is electrically connected with the data storage module through the data storage interface, and the processing unit can also store the data sent and received by the processing unit in the data storage module through the data storage interface according to the storage function enabling signal in the operation information.
9. The automobile part testing device of claim 4, further comprising an operation module, wherein the processing unit is further capable of receiving operation information sent by the operation module;
the circuit board further includes: the system comprises a main control chip and a data storage module;
the main control chip further comprises: a data storage interface;
the processing unit is electrically connected with the data storage module through the data storage interface, and the processing unit can also store the data sent and received by the processing unit in the data storage module through the data storage interface according to the storage function enabling signal in the operation information.
10. A test method of automobile parts is characterized in that:
electrically coupling the automobile part testing device of any one of claims 1 to 9 with an automobile part under test;
the processing unit of the automobile part testing equipment sends a control signal to the tested automobile part;
the tested automobile part receives the control signal and executes an instruction, and the tested automobile part sends position information to the processing unit;
the processing unit receives the position information and sends the position information to a display module of the automobile part testing equipment, and the display module displays the position information.
11. An automobile part production line, characterized by comprising a test station, wherein the test station comprises a console, a fixing frame and the automobile part test equipment according to any one of claims 1 to 9, the fixing frame and the automobile part test equipment are positioned on the console, the automobile part is positioned on the fixing frame, and the automobile part test equipment is in communication connection with the automobile part.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203909184U (en) * | 2014-06-12 | 2014-10-29 | 安徽江淮专用汽车有限公司 | Automobile component check device |
| CN104166059A (en) * | 2014-08-13 | 2014-11-26 | 重庆小康工业集团股份有限公司 | Function test device for electrical part of electric vehicle |
| CN106555681A (en) * | 2015-09-28 | 2017-04-05 | 长城汽车股份有限公司 | The control method of continuous variable valve lift system, system and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100060289A1 (en) * | 2008-09-05 | 2010-03-11 | Skf Usa, Inc. | System for Electrical Apparatus Testing |
| US10634709B2 (en) * | 2017-05-03 | 2020-04-28 | Lg Chem, Ltd. | Diagnostic system for a vehicle electrical system |
-
2019
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203909184U (en) * | 2014-06-12 | 2014-10-29 | 安徽江淮专用汽车有限公司 | Automobile component check device |
| CN104166059A (en) * | 2014-08-13 | 2014-11-26 | 重庆小康工业集团股份有限公司 | Function test device for electrical part of electric vehicle |
| CN106555681A (en) * | 2015-09-28 | 2017-04-05 | 长城汽车股份有限公司 | The control method of continuous variable valve lift system, system and vehicle |
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