装载机
执行机构
Lift(数据挖掘)
繁荣
液压缸
加速度
还原(数学)
工程类
计算机科学
汽车工程
控制工程
机械工程
电气工程
数据挖掘
物理
几何学
环境工程
经典力学
数学
作者
Riccardo Madau,Andrea Vacca
标识
DOI:10.1177/09596518221145978
摘要
Cabin vibration in construction machines is a known issue affecting both comfort and safety of the operators, and it also induces losses in machine productivity. The solution offered in commercial machines, known as the passive ride control, has the drawbacks of limited performance on a wide range of operating conditions and component costs, which has motivated research toward “active” alternatives that utilize electro-hydraulic systems without additional components. Nonetheless, the nonlinearities and the dynamic response of these systems constraint the performance of such alternatives, when compared to the commercial solution and therefore, their diffusion on the market. To address the challenges mentioned above, this article proposes an alternative hydraulic system layout to perform the ride control function based on connecting the boom lift actuators of the front-end loader in differential mode. This article describes the development of two active control strategies for this new ride control system that utilizes pressure and acceleration information to suppress cabin oscillations and presents the experimental tests on a full-size wheel loader. The results show a similar capability for reducing the oscillations achieved by the commercial solution and the one proposed in this research. In certain scenarios, the proposed formulation offers up to 10% of further improvement in terms of cabin oscillation reduction.
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