Hybrid Power Systems for Construction Machinery: Aspects of System Design and Operability of Wheel Loaders

2009 ◽  
Author(s):  
Reno Filla
Keyword(s):  
Power Systems ◽  
Complex Interaction ◽  
Total System ◽  
Systematic Design ◽  
Hybrid Power Systems ◽  
Wheel Loader ◽  
Construction Machinery ◽  
Energy Conversion Systems ◽  
Wheel Loaders ◽  
Operator Workload

This paper will examine the wheel loader as a system with two parallel energy conversion systems that show a complex interaction with each other and with the power source. Using a systematic design approach, several principle design solutions for hybridization can be found. Furthermore, the human operator with his/her control actions needs to be considered as part of the total system. This paper will therefore also connect to results from ongoing and previous research into operator workload and operability.

Co-Simulation of Wheel Loader Working Mechanism

2010 ◽  
Vol 43 ◽  
pp. 72-77
Author(s):  
Xiao Bin Ning ◽  
Ji Sheng Shen ◽  
Bin Meng
Keyword(s):  
System Simulation ◽  
Body System ◽  
Simulation Test ◽  
Working Mechanism ◽  
Wheel Loader ◽  
Construction Machinery ◽  
Internal Forces ◽  
Wheel Loaders ◽  
Multi Body ◽  
Flexible Component

The purpose of the work is to accurately calculate the forces acting on the working mechanism of wheel loader when excavating granulated material. In order to examine mobile machines movement processes, MSC.ADAMS is used to carry out multi-body system simulation and hydraulics sub-system simulation. Because the flexibility of the component of the working mechanism of wheel loader can not be neglected, ANSYS is used to compute the data describing the behaviour of the flexible component of working mechanism of wheel loader. Based on the Fundamental Earthmoving Equation, this paper describes a methodology and basic formulations of forces between the tool and the material to be moved as well as the internal forces in the pile to be dug from. The method has been implemented in an MSC.ADAMS model of a working mechanism wheel loader. The numerical simulation test on LCM(Linyi Construction Machinery) Wheel Loaders under various position of working equipment will be done to predict the forces acting on the machines during digging cycles.

scholarly journals Motor shifting and torque distribution control of a multi-motor driving system in electric construction vehicles

2021 ◽  
Vol 13 (6) ◽  
pp. 168781402110284
Author(s):  
Weikang Kong ◽  
Jixin Wang ◽  
Dewen Kong ◽  
Yuanying Cong ◽  
Shuangshi Feng
Keyword(s):  
Power Systems ◽  
Control Method ◽  
Simulation Analysis ◽  
Rapid Development ◽  
Transmission Efficiency ◽  
Torque Distribution ◽  
Driving System ◽  
Construction Machinery ◽  
Improve Energy Efficiency ◽  
Parameter Matching

With the rapid development of the world economic construction and the shortage of energy, it has become a hot research issue to realize the electrification of the vehicle driving system and improve energy efficiency. Most of the electric construction machinery power systems are characterized by low speed and high load. The coordinated driving of multiple motors can increase the output torque and improve the transmission efficiency of the machine on the basis of a compact layout. A novel configuration of electric construction vehicles based on multi-motor and single-speed and its driving torque distribution control method is presented in this paper. The detailed mathematical model is established and the simulation analysis is carried out based on it. The results show that the proposed multi-motor driving system with the control strategy can improve the overall efficiency in the condition of ensuring the driving force when the parameter matching and motors choosing reasonably.

Impact of forecasting error characteristics on battery sizing in hybrid power systems

2021 ◽  
Vol 39 ◽  
pp. 102567
Author(s):  
Yuqing Yang ◽  
Stephen Bremner ◽  
Chris Menictas ◽  
Merlinde Kay
Keyword(s):  
Power Systems ◽  
Hybrid Power Systems ◽  
Hybrid Power ◽  
Error Characteristics ◽  
Forecasting Error

Source diagram: A new approach for hybrid power systems design

2021 ◽  
Vol 47 ◽  
pp. 101429
Author(s):  
Ana Carolina de Lira Quaresma ◽  
Flávio S. Francisco ◽  
Fernando L.P. Pessoa ◽  
Eduardo M. Queiroz
Keyword(s):  
Power Systems ◽  
Systems Design ◽  
Hybrid Power Systems ◽  
New Approach ◽  
Hybrid Power

The Research of the Wheel Loader Working Device

2012 ◽  
Vol 155-156 ◽  
pp. 746-750
Author(s):  
Wei Wei Zhang ◽  
Jun Zhou ◽  
Jian Xin Deng
Keyword(s):  
System Model ◽  
Variable Geometry ◽  
Wheel Loader ◽  
Construction Machinery ◽  
Successful Model ◽  
Safety And Reliability ◽  
Great Pressure ◽  
Working Principle ◽  
Increasing Demand ◽  
Working Device

On the background of increasing demand of construction machinery, the requirement of energy saving without affecting performance, safety and reliability put great pressure on engineering staffs. A comprehensive grasp of the whole system in constitution and working principle exactly helps designers in control and modifications theoretically. Evaluations and discusses in this article are based on a model in Simulation X, and variable geometry parameters in the system model make the matching of desired result easily. A successful model build for working devices of the wheel loader, and all technical result can be acquired easily in the soft ware, the result curves can easily revealed the requirement of optimizing the design of the whole machine.

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