A walking control method and system applied to a hydraulic excavator
By acquiring the displacement data of the hydraulic excavator's travel pedal to predict operating intentions and calculate pressure, and combining this with direct control mode or active buffer control mode, the problem of poor smoothness in the hydraulic excavator's travel control is solved, and effective suppression of sudden flow changes and improvement in smoothness are achieved.
CN122190339APending Publication Date: 2026-06-12GUANGXI LIUGONG METATHINGS TECHNOLOGY CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGXI LIUGONG METATHINGS TECHNOLOGY CO LTD
- Filing Date
- 2026-04-22
- Publication Date
- 2026-06-12
AI Technical Summary
Technical Problem
Traditional hydraulic excavator travel control is a passive feedback system, which is difficult to effectively suppress hydraulic shocks caused by sudden changes in flow rate, resulting in poor travel control smoothness.
Method used
By acquiring the displacement data of the walking pedal, the system predicts the driver's intentions and calculates the pressure to determine whether to use a direct control mode or an active buffer control mode. Based on the predicted driver's intentions, the system adjusts the hydraulic pump's displacement in a timely manner to improve smoothness.
Benefits of technology
It effectively suppresses hydraulic shocks caused by sudden changes in flow rate, improving the smoothness of hydraulic excavator travel control.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122190339A_ABST
Abstract
The application relates to the technical field of mechanical control, in particular to a walking control method and system applied to a hydraulic excavator. The method comprises the following steps: acquiring walking pedal displacement data; performing operation intention prediction according to the walking pedal displacement data to obtain an operation intention prediction result; performing pressure calculation according to the walking pedal displacement data to obtain a target walking control pressure; determining a walking control execution mode according to the operation intention prediction result, and performing walking control on the hydraulic excavator according to the walking control execution mode and the target walking control pressure; wherein the walking control execution mode comprises a direct control mode and an active buffer control mode, and the active buffer control mode is a mode of changing the current pump pressure of the hydraulic pump of the hydraulic excavator into a mode consistent with the target walking control pressure at a preset change rate. Through the control mode of predicting the operation intention of the driver and combining the active buffer, hydraulic impact can be inhibited, so that the smoothness of the walking control of the hydraulic excavator is improved.
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