Closed-Circuit Pump-Controlled Electro-Hydraulic Steering System for Pure Electric Wheel Loader

被引：11

作者：

Guo, Tong ^{[1
,2
,3
]}

Wu, Biao ^{[1
]}

Lin, Tianliang ^{[1
,3
]}

Chen, Honghui ^{[1
]}

Chen, Qihuai ^{[1
,3
]}

机构：

[1] Huaqiao Univ, Coll Mech Engn & Automat, Xiamen 361021, Peoples R China

[2] Zhejiang Univ, State Key Lab Fluid Power & Mechatron Syst, Hangzhou 310027, Peoples R China

[3] Fujian Key Lab Green Intelligent Drive & Transmis, Xiamen 361021, Peoples R China

来源：

APPLIED SCIENCES-BASEL | 2022年 / 12卷 / 11期

基金：

中国国家自然科学基金;

关键词：

electric construction machinery; energy saving; steering system; closed-circuit pump-control;

D O I：

10.3390/app12115740

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Traditional construction machinery's full hydraulic steering system has high energy consumption. An electro-hydraulic flow matching steering system for electric wheel loaders based on closed-circuit pump control is proposed to solve the problem. The transfer function of the electro-hydraulic system is established, and the system is stable according to analysis via Routh matrix. A test platform is built to verify the effectiveness of the system and the control strategy. Taking a 1.6T wheel loader as an example, the energy consumption of the traditional steering system and the new steering system under zero-load, positive-load (shovel loaded with 600 kg gravel), and offset-load (the center of gravity of the gravel is off the center of the bucket) conditions is compared. The results show that the energy consumption of the proposed steering system is greatly reduced compared to the traditional system. Under the condition of zero-load with medium steering speed, compared to the traditional system, consumption is reduced by 22.8%.

引用

页数：16