A self-optimizing motion control method for a vehicle-mounted ceiling screen

By employing a self-optimized motion control method for in-vehicle ceiling-mounted screens, the motor output is adjusted in real time to generate position-duty cycle curves and anti-pinch threshold curves. This solves the problems of unstable and stuttering motion of the ceiling-mounted screens caused by individual differences, thereby improving user experience and safety.

CN121316715BActive Publication Date: 2026-07-21XIAMEN INTRETECH AUTOMOTIVE ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAMEN INTRETECH AUTOMOTIVE ELECTRONICS CO LTD
Filing Date
2025-09-23
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing technologies, vehicle-mounted ceiling screens suffer from unstable movement and stuttering due to individual differences, guide rail precision, and manufacturing process variations, making it difficult to achieve smooth movement.

Method used

By employing a self-optimizing motion control method for vehicle-mounted ceiling screens, initial control parameters are configured, position and speed are detected in real time, a position-duty cycle curve is generated, and hysteresis correction and anti-pinch threshold dynamic adaptation are performed to optimize motor output and ensure smooth movement.

Benefits of technology

It solves the lag problem caused by individual differences, achieves smooth movement of the ceiling-mounted screen, improves user experience and anti-pinch accuracy, and ensures safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a self-optimizing motion control method for a vehicle-mounted ceiling screen, S1, an initial PWM value matched with an initial running speed is input as a control motor output with an initial duty ratio to drive the motion of the ceiling screen, S2, real-time position information of the ceiling screen and real-time running speed of the ceiling screen at the corresponding position are acquired, S3, if the real-time running speed of the ceiling screen does not reach the initial running speed, the initial PWM value is adjusted to obtain a new PWM value to adjust the running speed of the ceiling screen until the speed reaches the initial running speed, a position-PWM curve is generated according to the position information of the ceiling screen and the PWM value matched with the initial running speed of the ceiling screen at the corresponding position, and the generated position-PWM curve is used as a position-PWM curve for controlling the running of the ceiling screen to realize self-optimization and ensure stable running speed of the ceiling screen without jam.
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