车辆行驶控制方法及系统
By combining the elliptical boundary discrimination function of braking pressure, pressure change rate and vehicle speed, and combining deceleration gating and integral confirmation mechanism, the air spring stiffness mode switching is precisely controlled, which solves the problem of false triggering and missed triggering caused by vehicle speed in the existing technology, and improves the comfort and safety of the vehicle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING VEHICLE TEST & RES INST CO LTD
- Filing Date
- 2026-05-15
- Publication Date
- 2026-07-17
AI Technical Summary
The existing air spring stiffness mode switching does not take into account the impact of vehicle speed, resulting in false triggering at low speeds or missed triggering at high speeds, affecting vehicle ride comfort and safety.
By acquiring the braking pressure, braking pressure change rate, and vehicle speed of the vehicle's brake hydraulic system, and using the elliptical boundary discrimination function to calculate the normalized distance value, combined with the deceleration gating comparator and integral confirmation mechanism, the stiffness mode switching conditions and switching direction of the air spring are determined, and the ramp time and stabilization time window are set to precisely control the stiffness mode switching of the air spring.
It effectively distinguishes between real braking and road bumps, avoids false triggering and missed triggering, improves vehicle comfort and safety under different operating conditions, and reduces impact noise and pressure fluctuations.
Smart Images
Figure CN122185785B_ABST
Abstract
Citation Information
Patent Citations
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