Apparatus and method for actively reducing action impact of excavator, and excavator

A method for actively reducing an action impact of an excavator, comprising:

• collecting a boom inclination angle, a stick inclination angle, a bucket inclination angle, and state information of an operating lever, of the excavator;
• determining operation information of the operating lever, and judging whether the boom inclination angle, the stick inclination angle, and the bucket inclination angle are within set ranges;
• and
• controlling, based on a judgment result whether the boom inclination angle, the stick inclination angle, and the bucket inclination angle are within the set ranges, operating states of an electronically controlled main valve and a main pump of the excavator;
• wherein the judging whether the boom inclination angle, the stick inclination angle, and the bucket inclination angle are within the set ranges, comprises:
• judging whether a boom real-time angle α1 is within a set value range of α2 to α3 of a boom movement angle, wherein the set value range of α2 to α3 of the boom movement angle is a safe zone for a boom movement;
• judging whether a stick real-time angle β1 is within a set value range of β2 to β3 of a stick movement angle, wherein the set value range of β2 to β3 of the stick movement angle is a safe zone for a stick movement;
• and
• judging whether a bucket real-time angle γ1 is within a set value range of γ2 to γ3 of a bucket movement angle, wherein the set value range of γ2 to γ3 of the bucket movement angle is a safe zone for a bucket movement;
• judging whether a change rate of the boom real-time angle satisfies α1/Δt>Δα, or whether a change rate of displacement of the operating lever in a movement direction of controlling the boom satisfies LA/Δt>ΔVA;
• judging whether a change rate of the stick real-time angle satisfies β1/Δt>Δβ, or whether a change rate of displacement of the operating lever in a movement direction of controlling the stick satisfies LB/Δt>ΔVB;
• and
• judging whether a change rate of the bucket real-time angle satisfies γ1/Δt>Δγ, or whether a change rate of displacement of the operating lever in a movement direction of controlling the bucket satisfies LC/Δt>ΔVC, wherein
• Δα is a critical value of a change rate of a boom angle, Δβ is a critical value of a change rate of a stick angle, Δγ is a critical value of a change rate of a bucket angle, ΔVA is a critical value of the change rate of the displacement of the operating lever in the movement direction of controlling the boom, ΔVB is a critical value of the change rate of the displacement of the operating lever in the movement direction of controlling the stick, ΔVC is a critical value of the change rate of the displacement of the operating lever in the movement direction of controlling the bucket, LA is a displacement of the operating lever in the movement direction of controlling the boom, LB is a displacement of the operating lever in the movement direction of controlling the stick satisfies, LC is a displacement of the operating lever in the movement direction of controlling the bucket, and Δt is time duration of change.