Filter element replacement prompting system and filter element replacement prompting method

The system, consisting of an engine speed sensor and a pressure valve, solves the problem of filter replacement relying on fixed cycles or subjective judgment, achieving timely and accurate filter replacement and reducing engine wear and fuel costs.

CN122215974APending Publication Date: 2026-06-16HYUNDAI MOTOR CO LTD +1
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Patent Information

Application Number
CN202411844569.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

In the existing technology, the replacement of air filter elements relies on a fixed cycle or the driver's subjective judgment, ignoring the diversity of the usage environment, resulting in untimely or premature replacement of filter elements, which affects engine efficiency and cost.

Method used

The system uses an engine speed sensor, pressure valve, and controller to determine when the filter needs to be replaced by sensing the engine speed and air negative pressure, and then reminds the user to replace it via a reminder device.

Benefits of technology

Accurately determining filter replacement time reduces engine wear, lowers maintenance and operating costs, and improves engine efficiency.

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Abstract

The invention relates to a prompting system and method for replacing a filter element, and the system comprises an engine rotating speed sensor which is used for sensing the rotating speed of an engine; the pressure valve is installed on the clean air side of an air filter of the engine and provided with an electromagnet capable of changing the magnetic force according to the first control signal, and the pressure valve can generate triggering action when the air negative pressure value on the clean air side of the air filter exceeds the acting force generated by the magnetic force of the electromagnet; therefore, a first trigger signal is generated; the controller is electrically connected with the engine rotating speed sensor and the pressure valve, the controller receives engine rotating speed information sensed by the engine rotating speed sensor so as to determine a first control signal used for controlling the magnetic force of the electromagnet, and the controller receives a first trigger signal sent by the pressure valve so as to determine that the filter element needs to be replaced. The vehicle maintenance cost and the vehicle use cost of a user can be saved.
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