Automotive Power Window Motor Testing

Automated power window motor testing with LIN communication, real-time monitoring, and data logging for performance validation.

Category :
Automotive Industry
Date :
3rd Oct, 2026
Link :
Rating :

Project Scope

Automating the SIM motor testing by monitoring and regulating voltage, torque, resistance, speed and current continuously.
LIN Protocol to test anti-Pinch motors.
Design GUI.
Continuous communication with PLC.
Log results to a file and the database.
Inspect motor functioning and different stages.
Test Report generation.
Label Printing.

Challenge

- LIN Protocol to automate & test Anti-Pinch Motors.
- Continuous monitoring & capture of Voltage, Current, Speed, and torque by maintaining line resistance.
- Calibration of Voltage, Current, Speed, and torque.
- Plot of Current vs Torque vs Speed.
- Store and analyse a large set of test data in a database.
- OPC to PLC Communication.

Solution

Automatic detection and testing of Motors in LabWindow/CVI.
NI PCI cards were used to acquire data.
NI LIN module was used for LIN communication.
Multi-Threaded Programming to acquire data simultaneously.
Linearization algorithm for plotting.
The acquired set of data is stored in files(.csv), and the summary of the test is stored in a MySQL database.
RSLinx OPC to communicate between IPC & PLC and vice versa.

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