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The Sixth International Conference on Fluid Power Transmission and Control(ICFP'2005)
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《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2004年第1期160-160,共1页
Date: April 12-15, 2005 Venue: Zhejiang University, Hangzhou, P. R. China Organized by Institute of Mechatronic Control Engineering, Zhejiang University
关键词 ICFP’2005 The Sixth International Conference on Fluid Power transmission and control
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FOUR-PARAMETER AUTOMATIC TRANSMISSION TECHNOLOGY FOR CONSTRUCTION VEHICLE BASED ON ELMAN RECURSIVE NEURAL NETWORK 被引量:6
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作者 ZHANG Hongyan ZHAO Dingxuan +1 位作者 TANG Xinxing Ding Chunfeng 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2008年第1期20-24,共5页
From the viewpoint of energy saving and improving transmission efficiency, the ZL50E wheel loader is taken as the study object. And the system model is analyzed based on the transmission system of the construction veh... From the viewpoint of energy saving and improving transmission efficiency, the ZL50E wheel loader is taken as the study object. And the system model is analyzed based on the transmission system of the construction vehicle. A new four-parameter shift schedule is presented, which can keep the torque converter working in the high efficiency area. The control algorithm based on the Elman recursive neural network is applied, and four-parameter control system is developed which is based on industrial computer. The system is used to collect data accurately and control 4D180 power-shift gearbox of ZL50E wheel loader shift timely. An experiment is done on automatic transmission test-bed, and the result indicates that the control system could reliably and safely work and improve the efficiency of hydraulic torque converter. Four-parameter shift strategy that takes into account the power consuming of the working pump has important operating significance and reflects the actual working status of construction vehicle. 展开更多
关键词 Construction vehicle Hydraulic transmission and control Automatic transmission Elman recursive neural network
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Numerical investigation of hydrodynamic tractor-retarder assembly under traction work condition 被引量:3
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作者 闫清东 邹波 魏巍 《Journal of Beijing Institute of Technology》 EI CAS 2011年第4期472-477,共6页
To obtain the performance characteristics of hydrodynamic tractor-retarder assembly under traction work condition,a numerical simulation model of flow channel was established and tetrahedron unstructured grids were ad... To obtain the performance characteristics of hydrodynamic tractor-retarder assembly under traction work condition,a numerical simulation model of flow channel was established and tetrahedron unstructured grids were adopted in the meshing stage.The racing rotating speed of the brake wheels was calculated by computational fluid dynamics(CFD) calculation and interpolation,and then accurate boundary condition was applied to the CFD simulation to study the pressure and velocity distribution of internal flow field in hydrodynamic tractor-retarder assembly.Finally,the original characteristics were calculated by CFD post-processing analysis.Comparison of experimental data and flow field analysis results showed that the calculation tolerance of the torque ratio K and the efficiency η was less than 5%,and the calculation tolerance of the pump torque coefficient λ was less than 10%. 展开更多
关键词 fluid transmission and control hydrodynamic tractor-retarder assembly(HTRA) traction condition numerical investigation
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