CN117949181A - Automobile atmosphere lamp test verification method based on HIL rack - Google Patents
Automobile atmosphere lamp test verification method based on HIL rack Download PDFInfo
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- CN117949181A CN117949181A CN202410354170.3A CN202410354170A CN117949181A CN 117949181 A CN117949181 A CN 117949181A CN 202410354170 A CN202410354170 A CN 202410354170A CN 117949181 A CN117949181 A CN 117949181A
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- 238000012360 testing method Methods 0.000 title claims abstract description 159
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000012795 verification Methods 0.000 title claims abstract description 31
- 239000003086 colorant Substances 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 12
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims description 3
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- 230000032683 aging Effects 0.000 claims description 3
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- 238000011161 development Methods 0.000 description 7
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- 239000011324 bead Substances 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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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
- G01R31/44—Testing lamps
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Abstract
The invention relates to the technical field of atmosphere lamp testing, in particular to an automobile atmosphere lamp testing and verifying method based on an HIL rack, which comprises the following steps: s1, building a whole vehicle virtual model, building the whole vehicle virtual model on an upper computer, simulating the running condition of the automobile through the whole vehicle virtual model, and generating a test signal based on the running condition of the automobile; s2, connecting equipment, and connecting an upper computer and the atmosphere lamp to be tested with an HIL rack; s3, test verification, namely transmitting a test signal to the atmosphere lamp to be tested through the HIL rack by the upper computer, executing the test signal by the atmosphere lamp to be tested, and feeding back the generated operation data of the atmosphere lamp to the upper computer at the same time, so that the upper computer performs test verification according to the operation data of the atmosphere lamp to be tested. The invention reduces the load of manual testing, improves the testing efficiency, can cover all test cases of the automobile atmosphere lamp, can better evaluate the performance and reliability of the atmosphere lamp, and meets the testing requirements of different clients and markets.
Description
Technical Field
The invention relates to the technical field of atmosphere lamp testing, in particular to an automobile atmosphere lamp testing and verifying method based on an HIL rack.
Background
With the gradual maturity of automobile culture of automobile lamps, people demand automobiles not only as vehicles, but also increasingly become public demands for textured automobile life. The automobile atmosphere lamp is a light source for baking the atmosphere in the automobile, can enhance sensory stimulation and improves the grade of the whole automobile. In the field of embedded development of automobile lamps, a V-shaped development mode is generally adopted, and testing is an important link, so that the method runs through half of the flow of the V-shaped development mode, and involves comprehensive detection on the aspects of software such as functions, performance, safety and stability, so as to ensure the quality and reliability of the software.
When the automobile atmosphere lamp is tested, most of the automobile atmosphere lamp tests are still integrated on a real automobile, real automobile test verification is carried out, the automobile can be tested in the later development period, verification and improvement periods are late, the test environment is unstable, and the automobile atmosphere lamp test device is greatly influenced by other automobile condition conditions. Some of the atmosphere lamp test tools are used for testing the automobile atmosphere lamps, the automobile atmosphere lamps of different types are different in form, corresponding test requirements are different, namely, a pair of tools is manufactured every birth of an automobile atmosphere lamp, the process of manufacturing and debugging the tools is free of cost, long in time consumption and large in occupied manpower and material resources, for 256-color atmosphere lamp tests, 32640 types of the automobile atmosphere lamp are only switched and combined, all test cases are covered, and a large amount of test time cost and labor cost are required to be spent.
Disclosure of Invention
The invention aims to solve the technical problems that: in order to solve the technical problem that the test requirements cannot be met in the automobile atmosphere lamp test in the prior art, the invention provides the test verification method for the automobile atmosphere lamp based on the HIL rack, which reduces the load of manual test, improves the test efficiency, can cover all test cases of the automobile atmosphere lamp, can better evaluate the performance and reliability of the atmosphere lamp, and meets the test requirements of different customers and markets.
The technical scheme adopted for solving the technical problems is as follows: an automobile atmosphere lamp test verification method based on an HIL rack, comprising the following steps:
S1, building a whole vehicle virtual model, building the whole vehicle virtual model on an upper computer, simulating the running condition of an automobile through the whole vehicle virtual model, and generating a test signal based on the running condition of the automobile;
S2, connecting equipment, and connecting the upper computer and the atmosphere lamp to be tested with an HIL rack;
S3, test verification, wherein the upper computer transmits the test signal to the atmosphere lamp to be tested through the HIL rack, the atmosphere lamp to be tested executes the test signal, and meanwhile, the generated operation data of the atmosphere lamp to be tested is fed back to the upper computer, so that the upper computer performs test verification according to the operation data of the atmosphere lamp to be tested.
Further, specifically, in the step S1, building the whole vehicle virtual model on the host computer includes the following steps:
S11, acquiring a DBC file, wherein the DBC file is a database file describing an automobile electronic system, the DBC file stores communication information among automobile electronic control units, and the communication information comprises functions, data information and signals of each automobile electronic control unit;
s12, building a whole vehicle virtual model through carrier CANoe software Canoe based on the DBC file.
Further, specifically, the whole vehicle virtual model includes:
the driver module is used for simulating and outputting a gear, a vehicle mode and a lamp control lamp action signal;
The charging pile module is used for simulating the charging state of the vehicle and the interaction function of the lamp;
The power transmission module is used for simulating the speed of the vehicle, the state of the motor and the state of the fan;
the in-car entertainment module is used for simulating playing music, playing video and talking;
in step S1, the upper computer simulates the working states of the modules, and generates corresponding test signals based on the specific working states of the modules.
Further, specifically, in step S2, the upper computer is connected to the tested atmosphere lamp through an IO interface module of the HIL rack, where the IO interface module is used for transmitting the test signal and the operation data of the tested atmosphere lamp.
Further, specifically, the measured atmosphere lamp is a 256-color atmosphere lamp, including at least 256 color switches;
and the operation data are parameters of the atmosphere lamp displaying corresponding colors when the tested atmosphere lamp executes the test signal.
Further, specifically, in step S3, the test verification performed by the upper computer according to the operation data of the tested atmosphere lamp includes the following steps:
s31, acquiring corresponding test parameters from a test database of the upper computer based on specific working states of the modules;
S32, comparing the test parameters with parameters of the atmosphere lamp for displaying corresponding colors; if the test parameters are matched with parameters of the atmosphere lamp displaying corresponding colors, judging that the color of the tested atmosphere lamp is switched normally under the test signals, otherwise, judging that the tested atmosphere lamp is abnormal, and obtaining a test result;
And S33, testing the tested atmosphere lamp under the working state of all the modules, and summarizing all the test results to obtain a test report.
Further, specifically, in step S3, the upper computer further performs fault detection on the tested atmosphere lamp in the repeated aging test process, including: open circuit fault detection, short circuit fault detection, and communication loss fault detection.
Further, specifically, the HIL rack includes:
the power supply module is used for providing a power supply signal for the atmosphere lamp module to be tested;
The data acquisition module is used for acquiring the operation data of the atmosphere lamp to be tested and transmitting the operation data to the upper computer through the IO interface module;
And a safety protection module for protecting the HIL rack when the short circuit fault occurs in the HIL rack.
Further, specifically, when the working states of the modules in the whole vehicle virtual model are simulated, the test parameters in the test database are updated based on the working states of the modules.
Further, specifically, the parameters of the atmosphere lamp for displaying the corresponding color include: current signal, voltage signal, fade time, and breathing pattern;
And the parameters of the atmosphere lamp for displaying the corresponding colors are the same as the test parameters.
The beneficial effects of the invention are as follows:
(1) According to the invention, the running condition of the automobile is simulated through the whole automobile virtual model, so that the performance and the performance of the atmosphere lamp are more accurately tested;
(2) According to the invention, the HIL bench is tested, so that the potential safety hazard caused by misoperation in the actual whole vehicle process can be avoided, and the safety in the test process is improved;
(3) The invention can repeatedly execute the test signals to obtain a large amount of test data, thereby better evaluating the performance and reliability of the atmosphere lamp;
(4) The invention avoids occupying whole vehicle resources for a long time, has accurate test result, does not need human eyes to judge, reduces the load of manual test, saves a great amount of time cost, improves the test efficiency, realizes full-automatic test, can cover all test cases of the automobile atmosphere lamp by simulating the running condition of the automobile through the whole vehicle virtual model, can better evaluate the performance and reliability of the atmosphere lamp, and meets the test requirements of different customers and markets.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a flow chart of a preferred embodiment of the present invention.
Fig. 2 is a schematic structural view of a preferred embodiment of the present invention.
FIG. 3 is a schematic diagram of a test verification process according to a preferred embodiment of the present invention.
In the figure, 1, an upper computer; 11. a whole vehicle virtual model; 2. a HIL rack; 21. an IO interface module; 22. a power module; 23. a data acquisition module; 24. a security protection module; 3. and the atmosphere lamp to be tested.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
1-2, Which are the best embodiments of the present invention, an automobile atmosphere lamp test verification method based on an HIL rack, the method comprises the following steps:
S1, building a whole virtual model 11, building the whole virtual model 11 on an upper computer 1, simulating the running condition of an automobile through the whole virtual model 11, and generating a test signal based on the running condition of the automobile;
s2, connecting equipment, and connecting an upper computer 1 and an atmosphere lamp 3 to be tested with the HIL rack 2;
S3, test verification, namely transmitting a test signal to the atmosphere lamp 3 to be tested through the HIL bench 2 by the upper computer 1, executing the test signal by the atmosphere lamp 3, and feeding back the generated operation data of the atmosphere lamp 3 to the upper computer 1 at the same time, so that the upper computer 1 performs test verification according to the operation data of the atmosphere lamp 3 to be tested. The test verification comprises the accuracy of lamplight switching, the change of lamplight brightness is measured, the time delay of lamplight reaction is determined, the test result is accurate, the judgment is not needed by human eyes, the load of manual test is reduced, the test efficiency is improved, the full-automatic test is realized, all test cases of the automobile atmosphere lamp can be covered by simulating the automobile running condition through the whole automobile virtual model 11, the performance and the reliability of the atmosphere lamp can be better evaluated, and the test requirements of different customers and markets are met.
In the present embodiment, in step S1, building the vehicle virtual model 11 on the host computer 1 includes the steps of:
S11, acquiring DBC files, wherein the DBC files are database files describing automobile electronic systems, the DBC files store communication information among automobile electronic control units, and the communication information comprises functions, data information and signals of each automobile electronic control unit;
S12, building the whole vehicle virtual model 11 through Vector CANoe software of Canoe based on the DBC file.
In the present embodiment, the whole vehicle virtual model 11 includes: the driver module is used for simulating and outputting a gear, a vehicle mode and a lamp control lamp action signal; the charging pile module is used for simulating the charging state of the vehicle and the interaction function of the lamp; the power transmission module is used for simulating the speed of the vehicle, the state of the motor and the state of the fan; the in-car entertainment module is used for simulating playing music, playing video and talking; in step S1, the upper computer 1 simulates the working state of each module, generates corresponding test signals based on the specific working state of each module, and by simulating the working state of each module in the upper computer 1, the test of the atmosphere lamp 3 to be tested can be realized in the early stage of the development period without waiting for the development stage of a real vehicle, thereby reducing the development period, improving the test efficiency, stabilizing the test environment, being less influenced by other vehicle conditions and having high configuration degree.
Specifically, the working states of the modules can be set in a self-defined manner, and then corresponding test signals are generated, for example: music is simulated and played through the in-car entertainment module, and test signals for switching various colors are realized on the tested atmosphere lamp 3 according to the rhythm of the music. In this embodiment, the upper computer 1 may store the test signal, and perform repeated test on the tested atmosphere lamp 3, so as to obtain a large amount of test data, thereby better evaluating the performance and reliability of the atmosphere lamp, and improving the accuracy of the test result.
In the embodiment, in step S2, the upper computer 1 is connected with the tested atmosphere lamp 3 through the IO interface module 21 of the HIL rack 2, so as to ensure the stability, accuracy and reliability of data transmission between the upper computer 1 and the tested atmosphere lamp 3. The safety hidden trouble caused by misoperation in the actual whole vehicle process can be avoided by testing on the HIL rack 2, and the safety of the testing process is improved;
In the present embodiment, the atmosphere lamp 3 to be measured is a 256-color atmosphere lamp, and the 256-color atmosphere lamp operates in an RGB color mode based on three basic colors of red, green, and blue. Each color is represented by an 8-bit binary number, providing 256 different color combinations, including at least 256 color switches. This complex color generation process requires precise hardware support and advanced software algorithms. Accurate control of the color is a critical part of the atmosphere lamp. Through cooperation with a microprocessor or a digital signal processor, digital inputs of 0-255 can be received, and the brightness of the LED lamp beads can be adjusted according to the inputs. To achieve a specific lighting effect, such as a fade, flicker or breathing effect. Wherein the gradation effect is achieved by smoothly changing the combination of RGB values; the breathing effect is achieved by gradually increasing and decreasing the brightness; the flicker effect is realized by rapidly switching the LED lamp beads, the modes are combined with test signals generated by the running conditions of the automobile, and the mode and the color of the atmosphere lamp 3 to be tested are controlled to be switched by the test signals transmitted by the upper computer 1. The operation data of the measured atmosphere lamp 3 is a parameter of the measured atmosphere lamp 3 displaying a corresponding color when executing a test signal.
In this embodiment, as shown in fig. 3, in step S3, the upper computer 1 performs test verification according to the operation data of the tested atmosphere lamp 3, including the following steps:
S31, acquiring corresponding test parameters from a test database of the upper computer 1 based on specific working states of the modules;
It should be noted that, when the working states of each module in the whole vehicle virtual model 11 are simulated, the test parameters in the test database are updated based on the working states of the modules, and the working states of each module correspond to the test parameters one by one, so that the efficiency of the test process and the accuracy of the test result are improved.
S32, comparing the test parameters with parameters of the atmosphere lamp for displaying corresponding colors; if the test parameters are matched with parameters of the atmosphere lamp displaying corresponding colors, judging that the color switching of the tested atmosphere lamp 3 is normal under the test signals, otherwise, judging that the tested atmosphere lamp 3 is abnormal, and obtaining a test result;
The parameters of the atmosphere lamp for displaying the corresponding colors include: current signal, voltage signal, fade time, and breathing pattern; the parameters of the atmosphere lamp displaying the corresponding colors are the same as the test parameters.
And S33, testing the tested atmosphere lamp 3 under the working state of all the modules, and summarizing all the test results to obtain a test report. The more the color of the atmosphere lamp 3 to be tested is, the more the current value is close to the set parameter, the more the color is difficult to distinguish accurately, the larger the error is, and the larger the color difference is, the more the color difference is, and the test verification method of the embodiment compares the parameter of the corresponding color displayed by the atmosphere lamp with the test parameter of the test database, so that the measurement precision is high.
In this embodiment, in step S3, the upper computer 1 further performs fault detection in the repeated aging test process on the atmosphere lamp 3 to be tested, including: open circuit fault detection, short circuit fault detection, and communication loss fault detection. Detecting open-circuit faults and short-circuit faults through current signals; the communication loss fault detection is carried out by setting a timing count and sending the timing count for a fixed time, and when the signal feedback is not received beyond the set time, the communication loss fault is judged, so that the fault can be rapidly positioned.
In the present embodiment, the HIL gantry 2 includes: a power module 22 for providing a power signal to the tested atmosphere lamp 3 module; the data acquisition module 23 is used for acquiring the operation data of the tested atmosphere lamp 3 and transmitting the operation data to the upper computer 1 through the IO interface module 21; and a safety protection module 24 for protecting the HIL rack 2 when the HIL rack 2 has a short-circuit fault.
In this embodiment, the data acquisition module 23 includes the first 6 channels of the VT2816A card to acquire current signals of the measured atmosphere lamp 3, and the last 6 channels to acquire voltage signals of the measured atmosphere lamp 3. Specifically, each channel of the VT2816A board card is provided with two pins for voltage measurement, the pins are connected to the positive and negative ends of the atmosphere lamp when the voltage is measured, and voltage signals of the atmosphere lamp when the atmosphere lamp is turned on are collected; when the channel measures the current, the current measuring channel is disconnected, pins of the board card are connected to the positive electrode input or the negative electrode output of the atmosphere lamp 3 to be measured, and the current of the atmosphere lamp during the turn-on of the lamp is collected.
In summary, the invention simulates the running condition of the automobile through the whole automobile virtual model 11, thereby more accurately testing the performance and the performance of the atmosphere lamp; the HIL bench 2 is tested, so that potential safety hazards caused by misoperation in the actual whole vehicle process can be avoided, and the safety of the testing process is improved; the test signal can be repeatedly executed to obtain a large amount of test data, so that the performance and the reliability of the atmosphere lamp can be better evaluated; the full-automatic test system can avoid occupying the whole vehicle resources for a long time, has accurate test results, does not need human eyes to judge, reduces the load of manual test, saves a large amount of time and cost, improves the test efficiency, realizes full-automatic test, can cover all test cases of the automobile atmosphere lamp by simulating the automobile running condition through the whole vehicle virtual model 11, can better evaluate the performance and reliability of the atmosphere lamp, and meets the test requirements of different customers and markets.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. An automobile atmosphere lamp test verification method based on an HIL rack is characterized by comprising the following steps:
S1, building a whole vehicle virtual model (11), and building the whole vehicle virtual model (11) on an upper computer (1) to simulate the running condition of an automobile through the whole vehicle virtual model (11) and generate a test signal based on the running condition of the automobile;
s2, connecting equipment, and connecting the upper computer (1) and the atmosphere lamp (3) to be tested with the HIL rack (2);
s3, test verification, wherein the upper computer (1) transmits the test signal to the atmosphere lamp (3) to be tested through the HIL rack (2), the atmosphere lamp (3) to be tested executes the test signal, and meanwhile, the generated operation data of the atmosphere lamp (3) to be tested are fed back to the upper computer (1), so that the upper computer (1) performs test verification according to the operation data of the atmosphere lamp (3) to be tested.
2. The HIL rack-based test verification method for an automotive atmosphere lamp according to claim 1, wherein in the step S1, building the entire vehicle virtual model (11) on an upper computer (1) comprises the steps of:
S11, acquiring a DBC file, wherein the DBC file is a database file describing an automobile electronic system, the DBC file stores communication information among automobile electronic control units, and the communication information comprises functions, data information and signals of each automobile electronic control unit;
s12, building a whole vehicle virtual model (11) through carrier CANoe software of Canoe based on the DBC file.
3. The HIL rack-based automotive atmosphere lamp test verification method according to claim 2, wherein the whole vehicle virtual model (11) comprises:
the driver module is used for simulating and outputting a gear, a vehicle mode and a lamp control lamp action signal;
The charging pile module is used for simulating the charging state of the vehicle and the interaction function of the lamp;
The power transmission module is used for simulating the speed of the vehicle, the state of the motor and the state of the fan;
the in-car entertainment module is used for simulating playing music, playing video and talking;
In step S1, the upper computer (1) simulates the working state of each module, and generates a corresponding test signal based on the specific working state of each module.
4. The test and verification method for an automotive atmosphere lamp based on an HIL rack according to claim 1, wherein in step S2, the host computer (1) is connected with the tested atmosphere lamp (3) through an IO interface module (21) of the HIL rack (2), and the IO interface module (21) is used for transmitting the test signal and operation data of the tested atmosphere lamp (3).
5. A HIL-rack based automotive atmosphere lamp test verification method according to claim 3, characterized in that the atmosphere lamp (3) under test is a 256-color atmosphere lamp comprising at least 256 color switches;
and the operation data are parameters of the atmosphere lamp (3) to be tested for displaying corresponding colors when the atmosphere lamp executes the test signal.
6. The test verification method for an automotive atmosphere lamp based on an HIL rack according to claim 5, wherein in step S3, the upper computer (1) performs test verification according to the operation data of the atmosphere lamp (3) under test, comprising the steps of:
s31, acquiring corresponding test parameters from a test database of the upper computer (1) based on specific working states of the modules;
S32, comparing the test parameters with parameters of the atmosphere lamp for displaying corresponding colors; if the test parameters are matched with parameters of the atmosphere lamp displaying corresponding colors, judging that the color of the tested atmosphere lamp (3) is switched normally under the test signals, otherwise, judging that the tested atmosphere lamp (3) is abnormal, and obtaining a test result;
And S33, testing the atmosphere lamp (3) to be tested under the working state of all the modules, and summarizing all the test results to obtain a test report.
7. The test and verification method for an automotive atmosphere lamp based on an HIL rack according to claim 1, wherein in step S3, the upper computer (1) further performs fault detection during repeated aging test for the tested atmosphere lamp (3), comprising: open circuit fault detection, short circuit fault detection, and communication loss fault detection.
8. The HIL rack-based automotive atmosphere lamp test verification method according to claim 4, wherein the HIL rack (2) comprises:
The power supply module (22) is used for providing a power supply signal for the tested atmosphere lamp (3) module;
The data acquisition module (23) is used for acquiring the operation data of the atmosphere lamp (3) to be tested and transmitting the operation data to the upper computer (1) through the IO interface module (21);
and a safety protection module (24) for protecting the HIL rack (2) when the HIL rack (2) has a short-circuit fault.
9. The test verification method for an automotive atmosphere lamp based on an HIL rack according to claim 6, wherein when the operation states of the respective modules in the virtual model (11) of the whole automobile are simulated, the test parameters in the test database are updated based on the operation states of the modules.
10. The HIL rack-based automotive atmosphere lamp test verification method of claim 6, wherein the atmosphere lamp displaying parameters of respective colors comprises: current signal, voltage signal, fade time, and breathing pattern;
And the parameters of the atmosphere lamp for displaying the corresponding colors are the same as the test parameters.
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| CN210923029U (en) * | 2019-11-28 | 2020-07-03 | 宁波舜宇精工股份有限公司 | Full-automatic measuring equipment of car atmosphere lamp strip |
| CN111559311A (en) * | 2020-05-29 | 2020-08-21 | 江铃汽车股份有限公司 | Control method of automobile atmosphere lamp |
| CN211652091U (en) * | 2019-12-31 | 2020-10-09 | 中国第一汽车股份有限公司 | Test equipment of electric power steering system |
| CN112904830A (en) * | 2021-01-21 | 2021-06-04 | 中国第一汽车股份有限公司 | Automatic test equipment of automobile atmosphere lamp control system and control method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210923029U (en) * | 2019-11-28 | 2020-07-03 | 宁波舜宇精工股份有限公司 | Full-automatic measuring equipment of car atmosphere lamp strip |
| CN211652091U (en) * | 2019-12-31 | 2020-10-09 | 中国第一汽车股份有限公司 | Test equipment of electric power steering system |
| CN111559311A (en) * | 2020-05-29 | 2020-08-21 | 江铃汽车股份有限公司 | Control method of automobile atmosphere lamp |
| CN112904830A (en) * | 2021-01-21 | 2021-06-04 | 中国第一汽车股份有限公司 | Automatic test equipment of automobile atmosphere lamp control system and control method thereof |
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