Brake fluid vapor resistance early warning method and system in complex environment

CN121671580BActive Publication Date: 2026-11-03CATARC AUTOMOTIVE TEST CENT (KUNMING) CO LTD
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Patent Information

Application Number
CN202512020432.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-12-30
Publication Date
2026-11-03
Estimated Expiration
2045-12-30

AI Technical Summary

Technical Problem

Current brake fluid maintenance is passive, lacks real-time monitoring, and has poor adaptability to complex scenarios, making it impossible to identify unexpected brake fluid deterioration, which leads to increased safety risks.

Method used

By deploying capacitive, temperature, and pressure sensors in the braking system, multi-dimensional data is collected. The dielectric constant is corrected by combining correlation curves, and the risk level of vapor resistance is comprehensively determined. The system is then linked with the vehicle system to provide early warning and proactive intervention.

Benefits of technology

It enables real-time monitoring and proactive warning of brake fluid vapor resistance, improving driving safety in complex environments and avoiding the risk of brake failure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a brake fluid vapor resistance early warning method and system in a complex environment, and the method comprises the following steps: deploying capacitive, temperature and pressure sensors at key positions of a brake system to synchronously collect multidimensional data; obtaining accurate water content by pre-calibrating the correlation curve of brake fluid under different conditions and combining real-time temperature and air pressure data; calculating the temperature ratio and pressure transmission efficiency, combining the indexes of water content, pressure fluctuation amplitude and pedal characteristics, defining the risk threshold interval of the five indexes respectively, taking the pressure transmission efficiency and pedal characteristics as the core, combining the risk levels of the other three indexes, and comprehensively determining the vapor resistance risk level according to a preset rule; dividing the risk register and triggering corresponding early warning signals respectively, and linking ESP to perform pre-filling when the risk is high, and linking ADAS to adjust ACC, FCW, AEB and VCU limited speed when the risk is urgent. The early warning can take protective measures more actively.
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Citation Information

Patent Citations

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