Vehicle lamp function closed-loop test system integrated with voltage and current acquisition module

Abstract

The utility model provides an automobile lamp function closed-loop test system integrated with a voltage and current acquisition module, and belongs to the technical field of automobile test. The closed-loop test system comprises a CANoe platform, a VT system, a vehicle lamp controller, an intelligent vehicle lamp module, a voltage and current acquisition module and a data processing module. The CANoe platform is in communication connection with the VT system and the vehicle lamp controller, the VT system is electrically connected with the vehicle lamp controller and the intelligent vehicle lamp module, the vehicle lamp controller is in communication connection with the intelligent vehicle lamp module, the intelligent vehicle lamp module is electrically connected with the voltage and current acquisition module, and the voltage and current acquisition module is electrically connected with the vehicle lamp controller. The voltage and current acquisition module is in communication connection with the data processing module, the VT system is in communication connection with the data processing module, the data processing module is electrically connected with the CANoe platform, and the CANoe platform is used for generating a corresponding test report based on an electric signal sent by the data processing module. The problem of insufficient test precision in the prior art is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to car light test technical field, especially involve a kind of car light function closed loop test system of fusion voltage current acquisition module. BACKGROUND

[0002] With the rapid development of automobile electronics and intelligentization, car light is no longer just a traditional lighting device, but gradually becomes the key automobile parts integrating lighting, information exchange, appearance beautification and other functions. The introduction of intelligent car light aims to improve driving experience, enhance safety performance and express brand personality, and becomes an important part of automobile intelligentization. The continuous progress of technology makes future car light more intelligent, efficient and diversified. With the development of intelligent car light, intelligent car light test technology is also constantly innovated and improved. In order to complete the test of intelligent car light, the initial method is to connect it to the real system after the development of ECU's hardware and software, connect various sensors and loads, input specific signals, and observe whether the corresponding function and action are correct. When testing fault detection strategy, the sensor or load needs to be manually disconnected to detect whether the ECU can detect faults. This method is extremely inefficient and difficult to realize automation, so VT system comes into being. VT System is used to replace the real actuators and sensors connected to ECU. These actuators and sensors are simulated by corresponding components of VT System. However, due to the limitation of function board card in VT system, the accurate value of current cannot be accurately captured when the fluctuation range of current is small, so this will make the final test result of car light not accurate enough.

[0003] The above problems need to be solved. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a kind of car light function closed loop test system of fusion voltage current acquisition module, to solve the technical problem of existing car light test result not accurate enough.

[0005] The utility model discloses an embodiment provides a kind of vehicle light function closed loop test system of fusion voltage current acquisition module, the closed loop test system includes: CANoe platform, VT system, vehicle light controller, intelligent vehicle light module, voltage current acquisition module and data processing module;The CANoe platform first output end is connected with the VT system input end communication, the CANoe platform second output end is connected with the vehicle light controller first input end communication, the VT system first output end is electrically connected with the vehicle light controller second input end, the VT system second output end is electrically connected with the intelligent vehicle light module first input end, the vehicle light controller output end is connected with the intelligent vehicle light module second input end communication, the intelligent vehicle light module output end is electrically connected with the voltage current acquisition module input end, the voltage current acquisition module output end is connected with the data processing module first input end communication, the VT system third output end is connected with the data processing module second input end communication, the data processing module output end is electrically connected with the CANoe platform input end, the CANoe platform is used to generate corresponding test report with the electrical signal based on the data processing module sending.

[0006] Further, the closed loop test system further includes PC end, the CANoe platform is integrated in PC end, for based on the CANoe platform selects the vehicle light scene that needs to be executed and sends vehicle light scene signal to the vehicle light controller by CAN signal transmission protocol.

[0007] Further, the PC end is further used to send vehicle light scene signal to the VT system by CAN signal transmission protocol based on the CANoe platform selects the vehicle light scene that needs to be executed.

[0008] Further, the PC end is further used to display the test report generated by the CANoe platform.

[0009] Further, the vehicle light controller is used to control the intelligent vehicle light module to display corresponding light scene based on receiving the vehicle light scene signal sent by the CANoe platform.

[0010] Further, the voltage current acquisition module is used to collect the current of the intelligent vehicle light module, and sends the current data collected to the data processing module by RS232 or RS485 communication protocol.

[0011] Further, the data processing module is integrated with comparator, and the data processing module is used to generate comparison result based on the vehicle light scene signal sent by VT system through CAN signal transmission protocol and the current data sent by voltage current acquisition module, and generates corresponding electrical signal based on the comparison result and sends to the CANoe platform of PC end.

[0012] Further, the data processing module is further configured to retrieve the current range corresponding to the vehicle lamp scene from the data processing module based on the vehicle lamp scene signal, generate a comparison result corresponding to the current range by comparing the current data sent by the voltage and current acquisition module, and generate an electric signal corresponding to the comparison result and send the electric signal to the CANoe platform of the PC end.

[0013] Further, the data processing module is further configured to compare the current data sent by the voltage and current acquisition module through a comparator to determine whether the current data satisfies the retrieved current range, generate a first electric signal and send the first electric signal to the CANoe platform of the PC end when the current data satisfies the current range, and generate a second electric signal and send the second electric signal to the CANoe platform of the PC end when the current data does not satisfy the current range.

[0014] Further, the VT system is further configured to provide working voltage for the vehicle lamp controller and the intelligent vehicle lamp module.

[0015] The technical scheme provided by the embodiment of the utility model has the beneficial effects that: on the one hand, the VT system and the CANoe platform are combined to perform closed-loop testing on the vehicle lamp, manual operation is reduced after testing, the testing time of personnel is reduced, and the testing efficiency is improved; on the other hand, the high-precision voltage and current acquisition module and the data processing module are fused, and the current data of the vehicle lamp module can be accurately collected when the current fluctuates in a small range, and the accuracy of subsequent vehicle lamp testing is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is a vehicle lamp function closed-loop testing system structure schematic view provided by the embodiment of the utility model that fuses the voltage and current acquisition module. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the utility model more clear, the embodiment of the utility model will be further described in detail below with reference to the drawings.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the specification herein is for describing particular embodiments only and is not intended to be limiting of the application. For example, the terms "length," "width," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," "upper end," "lower end," "middle," and the like, merely describe the orientation in the drawings on which the application is illustrated and merely assist the intent that the application can have other orientations. These terms are in no way meant to limit the application.

[0020] The terms "comprise", "comprising", "include", "including", "have" and "having" and any variations thereof in the specification and in the claims are intended to cover both the case where one or more steps, features, structures, or components are included in the content of any feature, and the case where one or more steps, features, structures, or components are excluded from the content of any feature. The terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" and any variations thereof in the specification and in the claims are used merely as labels to distinguish between different objects, and are not meant to limit the order, the position, or the order of the objects. The term "plurality" means two or more, unless expressly specified otherwise.

[0021] Further, reference being made in this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, or to a single alternative embodiment. It is expressly understood that any of the embodiments described herein can be combined with any of the other embodiments.

[0022] Embodiments

[0023] For the convenience of subsequent understanding, the working principle of the utility model is explained: the utility model discloses a kind of vehicle light function closed loop test platform of fusion RS232&RS485 modbus protocol high-precision voltage current acquisition module, utilize bus tool CANoe (CAN open environment), data processing module, measured vehicle light controller, measured vehicle light module, high-precision current acquisition module (RS232 / RS485 modbus protocol) are made into a set of vehicle light function closed loop test link of fusion RS232&RS485 modbus protocol high-precision current acquisition module.The system uses VT system to establish bus node simulation, CANoe software is used as test management software to realize system configuration management and test management, and hardware system parameter is configured.Simulation is carried out to the bus node outside vehicle light controller, CANoe selects the scene to be executed to send signal to vehicle light controller by CAN signal transmission protocol;Vehicle light controller receives CAN bus signal execution instruction and controls intelligent vehicle light module to open corresponding light scene;When vehicle light module executes corresponding light scene, high-precision voltage current acquisition module collects the voltage and current of vehicle light module, and sends acquisition result to data processing module by RS232 / 485 modbus protocol;Data processing module carries out data processing to input bus signal execution command and current acquisition data by python script and judges whether output result meets product demand, and result is sent to CANoe in the form of system variable;CANoe generates test report automatically by the test result fed back by data processing module, to complete system closed loop test.

[0024] Specific implementation is as follows:

[0025] As Figure 1 It is a kind of vehicle light function closed loop test system structure schematic drawing provided by the utility model embodiment of fusion voltage current acquisition module.

[0026] As an example, the closed-loop test system comprises: a CANoe platform 1, a VT system 2, a vehicle lamp controller 3, an intelligent vehicle lamp module 4, a voltage and current acquisition module 5, and a data processing module 6; the first output end of the CANoe platform 1 is in communication connection with the input end of the VT system 2, the second output end of the CANoe platform 1 is in communication connection with the first input end of the vehicle lamp controller 3, the first output end of the VT system 2 is in electrical connection with the second input end of the vehicle lamp controller 3, the second output end of the VT system 2 is in electrical connection with the first input end of the intelligent vehicle lamp module 4, the output end of the vehicle lamp controller 3 is in communication connection with the second input end of the intelligent vehicle lamp module 4, the output end of the intelligent vehicle lamp module 4 is in electrical connection with the input end of the voltage and current acquisition module 5, the output end of the voltage and current acquisition module 5 is in communication connection with the first input end of the data processing module 6, the third output end of the VT system 2 is in communication connection with the second input end of the data processing module 6, and the output end of the data processing module 6 is in electrical connection with the input end of the CANoe platform 1; the CANoe platform 1 is used for generating a test report corresponding to an electrical signal based on the electrical signal sent by the data processing module 6. The VT system can be a Vector-VT System.

[0027] In some possible implementations, the closed-loop test system further comprises a PC end, and the CANoe platform 1 is integrated in the PC end; the CANoe platform 1 is used for sending a vehicle lamp scene signal to the vehicle lamp controller 3 through a CAN signal transmission protocol based on a vehicle lamp scene selected by the CANoe platform 1 to be executed. Specifically, a user can switch different vehicle lamp scenes required to be displayed by the intelligent vehicle lamp module 4 in the CANoe software of the PC end, and the CANoe software transmits a vehicle lamp scene signal to the vehicle lamp controller 3 through a CAN signal based on the vehicle lamp scene selected by the user.

[0028] In some possible implementations, the PC end is further used for sending a vehicle lamp scene signal to the VT system 2 through a CAN signal transmission protocol based on a vehicle lamp scene selected by the CANoe platform 1 to be executed. Specifically, a user can switch different vehicle lamp scenes required to be displayed by the intelligent vehicle lamp module 4 in the CANoe software of the PC end, and the CANoe software transmits a vehicle lamp scene signal to the VT system 2 through a CAN signal based on the vehicle lamp scene selected by the user.

[0029] In some possible implementations, the PC end is further used for displaying a test report generated by the CANoe platform 1. Specifically, the test report is displayed in the PC end, so that the test report can be visualized and the user can view the test result of the vehicle lamp.

[0030] In some possible implementations, the vehicle lamp controller 3 is configured to control the intelligent vehicle lamp module 4 to display a corresponding light scene based on the vehicle lamp scene signal sent by the CANoe platform 1.

[0031] In some possible implementations, the voltage and current acquisition module 5 is configured to acquire the current of the intelligent vehicle lamp module 4, and send the acquired current data to the data processing module 6 through an RS232 or RS485 communication protocol.

[0032] In some possible implementations, the data processing module 6 is integrated with a comparator, and the data processing module 6 is configured to generate a comparison result based on the vehicle lamp scene signal sent by the VT system 2 through the CAN signal transmission protocol and the current data sent by the voltage and current acquisition module 5, and generate an electrical signal corresponding to the comparison result and send the electrical signal to the CANoe platform 1 of the PC end. Specifically, the data processing module 6 is pre-stored with a theoretical current range of the intelligent vehicle lamp module 4 under different vehicle lamp scenes.

[0033] In some possible implementations, the data processing module 6 is further configured to retrieve the current range corresponding to the vehicle lamp scene pre-stored in the data processing module based on the vehicle lamp scene signal, generate a comparison result corresponding to the comparison between the current data sent by the voltage and current acquisition module and the current range, and generate an electrical signal corresponding to the comparison result and send the electrical signal to the CANoe platform 1 of the PC end.

[0034] In some possible implementation manners, the data processing module 6 is further configured to compare, by a comparator, whether the current data sent by the voltage and current acquisition module 5 meets the called current range, and when the current data meets the current range, a first electrical signal is generated and sent to the CANoe platform of the PC, and when the current data does not meet the current range, a second electrical signal is generated and sent to the CANoe platform 1 of the PC. Specifically, when the received current data sent by the voltage and current acquisition module 5 is within the called current range, it is proved that the vehicle lamp detection is qualified this time, a high-level signal is generated and sent to the CANoe platform 1, so that the CANoe platform 1 can generate a test report corresponding to the vehicle lamp test qualified based on the high-level signal; when the received current data sent by the voltage and current acquisition module 5 is not within the called current range, it is proved that the vehicle lamp detection is unqualified this time, a low-level signal is generated and sent to the CANoe platform 1, so that the CANoe platform 1 can generate a test report corresponding to the vehicle lamp test unqualified based on the low-level signal. It should be noted that the first electrical signal and the second electrical signal are not limited here, and a person skilled in the art can change the settings thereof based on actual needs in actual application. That is, the first electrical signal can correspond to a high-level signal or a low-level signal, and the second electrical signal can correspond to a high-level signal or a low-level signal.

[0035] In some possible implementation manners, the VT system 2 is further configured to provide working voltage for the vehicle lamp controller 3 and the intelligent vehicle lamp module 4.

[0036] In the above implementation manners, on the one hand, the vehicle lamp is tested in a closed loop by combining the VT system and the CANoe platform, manual operation is reduced after test execution, the test time of personnel is reduced, and the test efficiency is improved; on the other hand, the current data of the vehicle lamp module can be accurately acquired when the current fluctuates in a small range by fusing the high-precision voltage and current acquisition module and the data processing module, and the accuracy of subsequent vehicle lamp test is greatly improved.

Claims

1. A closed-loop testing system for vehicle headlight functions integrating voltage and current acquisition modules, characterized in that, The closed-loop test system includes: CANoe platform, VT system, vehicle lighting controller, intelligent vehicle lighting module, voltage and current acquisition module and data processing module; The first output terminal of the CANoe platform is communicatively connected to the input terminal of the VT system. The second output terminal of the CANoe platform is communicatively connected to the first input terminal of the vehicle lighting controller. The first output terminal of the VT system is electrically connected to the second input terminal of the vehicle lighting controller. The second output terminal of the VT system is electrically connected to the first input terminal of the intelligent vehicle lighting module. The output terminal of the vehicle lighting controller is communicatively connected to the second input terminal of the intelligent vehicle lighting module. The output terminal of the intelligent vehicle lighting module is electrically connected to the input terminal of the voltage and current acquisition module. The output terminal of the voltage and current acquisition module is communicatively connected to the first input terminal of the data processing module. The third output terminal of the VT system is communicatively connected to the second input terminal of the data processing module. The output terminal of the data processing module is electrically connected to the input terminal of the CANoe platform. The CANoe platform is used to generate a corresponding test report based on the electrical signals sent by the data processing module.

2. The vehicle headlight function closed-loop test system with integrated voltage and current acquisition module according to claim 1, characterized in that, The closed-loop test system also includes a PC, and the CANoe platform is integrated on the PC. It is used to select the vehicle lighting scene to be executed based on the CANoe platform and send the vehicle lighting scene signal to the vehicle lighting controller through the CAN signal transmission protocol.

3. The vehicle headlight function closed-loop test system with integrated voltage and current acquisition module according to claim 2, characterized in that, The PC is also used to select the vehicle lighting scene to be executed based on the CANoe platform and send the vehicle lighting scene signal to the VT system through the CAN signal transmission protocol.

4. The vehicle headlight function closed-loop test system with integrated voltage and current acquisition module according to claim 2, characterized in that, The PC is also used to display the test reports generated by the CANoe platform.

5. The vehicle headlight function closed-loop test system with integrated voltage and current acquisition module according to claim 1, characterized in that, The vehicle lighting controller is used to control the intelligent vehicle lighting module to display the corresponding lighting scene based on the vehicle lighting scene signal received from the CANoe platform.

6. The vehicle headlight function closed-loop test system with integrated voltage and current acquisition module according to claim 5, characterized in that, The voltage and current acquisition module is used to acquire the current of the intelligent vehicle light module and send the acquired current data to the data processing module through RS232 or RS485 communication protocol.

7. The vehicle headlight function closed-loop test system with integrated voltage and current acquisition module according to claim 2, characterized in that, The data processing module integrates a comparator. The data processing module is used to generate a comparison result based on the vehicle lighting scene signal sent by the VT system through the CAN signal transmission protocol and the current data sent by the voltage and current acquisition module, and generate a corresponding electrical signal based on the comparison result and send it to the CANoe platform on the PC.

8. The vehicle headlight function closed-loop test system with integrated voltage and current acquisition module according to claim 7, characterized in that, The data processing module is also used to retrieve the current range corresponding to the vehicle lighting scene pre-stored in the data processing module based on the vehicle lighting scene signal, generate a corresponding comparison result by comparing the current data sent by the voltage and current acquisition module with the current range, and generate a corresponding electrical signal based on the comparison result and send it to the CANoe platform on the PC.

9. The vehicle headlight function closed-loop test system with integrated voltage and current acquisition module according to claim 8, characterized in that, The data processing module is also used to compare the current data sent by the voltage and current acquisition module with the current data through a comparator to see if it meets the retrieved current range. If it does, a first electrical signal is generated and sent to the CANoe platform on the PC. If it does not meet the range, a second electrical signal is generated and sent to the CANoe platform on the PC.

10. The vehicle headlight function closed-loop test system with integrated voltage and current acquisition module according to claim 1, characterized in that, The VT system is also used to provide operating voltage for the headlight controller and the intelligent headlight module.

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