Multi-cavity air spring solenoid valve intelligent control adaptive stiffness adjusting system

The intelligent adaptive stiffness adjustment system with multi-chamber air spring solenoid valves realizes the correlation between suspension system stiffness adjustment and road section information, predicts the operation type switching rate, actively adapts to changes in working conditions, solves the problem of adjustment lag in existing technologies, and improves vehicle handling stability and driving experience.

CN121799102BActive Publication Date: 2026-06-26NINGBO YONGJIN AUTO PARTS CO LTD
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Patent Information

Application Number
CN202610274914.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-03-09
Publication Date
2026-06-26
Estimated Expiration
2046-03-09

AI Technical Summary

Technical Problem

Existing automotive suspension system stiffness adjustment technology cannot establish a correlation with road segment information, resulting in a lack of targeted adjustment strategies on complex road sections, difficulty in accurately matching real-time road condition requirements, and the adjustment action lags behind driver operation, affecting vehicle ride smoothness and safety.

Method used

The system employs a multi-chamber air spring solenoid valve intelligent adaptive stiffness adjustment system. It acquires driving data and map data through a data acquisition module, establishes the correlation between road segments and stiffness adjustment, analyzes operation types, predicts the operation type switching rate, and adjusts the stiffness of each chamber through solenoid valves to actively adapt to upcoming changes in operating conditions.

Benefits of technology

It improves the timeliness and accuracy of stiffness adjustment, ensures the vehicle's handling stability under dynamic operation, avoids over- or under-adjustment, and enhances the driving experience.

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Abstract

The present application relates to the technical field of adaptive stiffness adjustment. The present application relates to a multi-cavity air spring electromagnetic valve intelligent control adaptive stiffness adjustment system. It comprises a data acquisition module, a data matching module, a standard setting module, an operation prediction module and a stiffness adjustment module; the data acquisition module acquires stiffness adjustment data, driving operation data and driving position data, simultaneously acquires map data, and divides the road section in combination with the driving position data; a correction coefficient is set based on the time proportion of the driving operation type, and the target coefficient is screened in combination with the reference list of the real-time road section, and then the switching rate of the operation type is predicted, so that the stiffness adjustment is changed from the traditional passive triggering to the active prediction, the upcoming working condition change is adapted in advance, the defects that the traditional adjustment technology lags behind the working condition change are effectively solved, the timeliness and accuracy of the stiffness adjustment are improved, and the steering stability of the vehicle under dynamic operations such as steering, braking and acceleration is ensured.
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