Hongke Case | LIN/CAN bus automotive parts testing solution

Article source: Hongke Automotive Electronics
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Hongke's LIN/CAN bus auto parts testing solution is an excellent integrated package based on the Baby-LIN series of products to help customers efficiently complete the inspection of vehicle parts quality, function, control, etc. during the testing and production stages.

1. What is the importance of auto parts testing?

Testing of automotive components plays a vital role in ensuring the safety, functionality and reliability of the vehicle. Vehicle parts for LIN/CAN communication mainly include motors such as window shakers, wipers, grilles, sunroofs, etc., as well as detection combination switches, seats, ambient lights, etc. Customers often need to verify their functions in the vehicle parts automatic test system performance and reliability, therefore a powerful LIN&CAN bus test simulation tool is needed.

2. How do Hongke’s test simulation tools show their prominence in automotive parts testing?

1. Accurate simulation: simulate LIN&CAN nodes to achieve master-slave simulation and analysis of the system

2. Parse LDF&DBC files: Support the parsing of LDF&DBC files to obtain comprehensive information about the ECU

3. Configurable logical operations: configure logical operations, event triggering, and macro operations of LIN&CAN devices

4. Real-time monitoring and recording: control LIN&CAN equipment, monitor and record messages, and send specific commands.
   
   For the LIN&CAN bus simulation test of vehicle components, Hongke proposed a solution based on the BabyLIN series of products, through the master-slave simulation of LIN&CAN nodes/systems and Analysis supports event-based signal configuration, sequence control, error judgment and triggering actions to help customers complete testing of vehicle parts quality, function, control, etc., and optimize the production quality of auto parts.
   
   There are five products in the BabyLIN series, with different functions and working performance to meet the various functional requirements of customer testing. The products are all equipped with free LINWorks software, which establishes a friendly interaction between the functional operation of the test piece and the software interface. .

Application scenario 1: Functional test of steering wheel switch

The functional test of the steering wheel switch mainly includes: button detection and backlight function, heating function, HOD function and other tests, which can be completed using the BabyLIN series products. If you use Baby-LIN-RM-III to detect car switches, you can achieve the following functions:

1. When a button on the steering wheel is pressed, the corresponding LIN signal is converted into a digital output event on the BabyLIN RM-III and output to the PLC for logical judgment to detect the button function of the steering wheel.

2. The backlight and heating functions of the steering wheel switch can be assigned to the signal and run by writing an SDF program macro script, so that the steering wheel can be automatically activated or manually turned on after the steering wheel is powered on.

Application case 2: Control testing of various types of motors

The control testing of motors in automobile sub-components (such as automobile sunroof motors and automobile air-conditioning motors) can be achieved using the BabyLIN series of products. Using different BabyLIN products, personalized motor control function testing can be completed:

1. Use Baby-LIN-RC-II to control the car sunroof motor. RC-II can control the motor with six buttons to achieve different operations, and can realize functions such as initialization, opening and closing of the glass motor and sunshade motor.

2. Use Baby-LIN-MB-II to control each motor of the car air conditioning system, send different serial port commands through PC or PLC to control the operation of one or more motors, and monitor the operating status of the motors at the same time.

Application scenario 3: Function test of RGB ambient light

Product testing of RGB ambient lights usually requires connecting multiple identical RGB ambient lights for simultaneous testing. The functional test plan for RGB ambient lights using BabyLIN products with four-wire diagnostics and automatic address assignment functions is as follows:

1. For testing on multiple identical nodes on the same LIN network, the automatic address allocation function needs to be implemented. For the implementation of automatic address allocation, 3C diagnostic messages can be used to request.

2. Using the function of the SDF V3 version, the instructions for automatic address allocation are unitized and modularized through Protocol. After assigning the Frame ID, different RGB lighting colors and brightness tests can be implemented.

Hongke LIN bus related product details

Hongke Automotive Electronics

Hongke Automotive Electronics Division has more than 10 years of experience in the automotive bus industry. It has cooperated with world-renowned CAN and LIN bus suppliers PEAK-System, Lipowsky, IHR, etc. for 10 years to provide top-level CAN/LIN analyzers in the field. and test solutions, and also provides simulation test tools and solutions for automotive Ethernet and time-sensitive networks (TSN). The EOL testing software and hardware system independently developed by Hongke has been installed and tested many times in the industry. All members of the business department have received professional training at home and abroad and obtained professional qualification certification. The engineers have an average of 5+ years of technical experience and level, and they have consistently won customers. Excellent reputation. Hongke Automotive Electronics Division is committed to providing you with the most professional services.