[논문]압력커플링 정유압 변속기를 이용한 에너지 절감 유압시스템에 관한 연구

도황팅; 안경관

doi:10.7839/ksfc.2012.9.1.010

[국내논문] 압력커플링 정유압 변속기를 이용한 에너지 절감 유압시스템에 관한 연구
A Study of Energy Saving Hydraulic System by A Pressure Coupling Hydrostatic Transmission 원문보기

유공압건설기계학회지 = Journal of the Korean Society for Fluid Power and Construction Equipments, v.9 no.1, 2012년, pp.10 - 17

도황팅 (울산대학교 대학원 기계자동차공학과) , 안경관 (울산대학교 기계공학부)

Abstract ▼ AI-Helper

Nowadays, the demand of energy saving is increasing more and more while the natural resources have been exhausted. Besides, the emission gas caused by vehicles has been being a serious environment problem. Therefore, many studies have been carried out, especially focusing on braking energy regeneration, in order to save energy as well as reduce emission of mobile vehicles. In this paper, we propose a closed-loop hydrostatic transmission for braking energy regeneration with two configurations to reduce the energy consumption by recovering the braking energy. The effectiveness of the proposed system was verified by simulation. The simulation results indicated that the pressure coupling configuration gave better performance in comparison to flow coupling configuration about 40.8%, 61.7% and 53.8% reduction of fuel consumption in 10 mode, 10 mode modified profile and highway schedules, respectively.

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가설 설정

The supplied power and energy of pump P₁ are shown in Fig. 12. The supplied power is switched between zero and maximum value due to the displacement ratio of P₁. The sum energy supplied to 10 mode profile schedule in this configuration is 182.

제안 방법

The simulations have been carried out in the following two cases: flow coupling configuration and pressure coupling configuration, using a PID controller for velocity control in both cases.
A closed-loop hydrostatic transmission with two different configurations (flow coupling and pressure coupling) was proposed and investigated in this research. All hydraulic components were mathematically modeled based on parameters of a real hydraulic system.

대상 데이터

To analyze the response of the proposed system for vehicle applications, this system was applied to a 2000kg vehicle. Final reduction gear ratio is 3.

성능/효과

This simulation results proved that the pressure coupled hydrostatic transmission had better energy efficiency compared to that of flow coupling one and from the simulation results, 40.8%, 61.7% and 53.8% supplied energy was reduced in 10 mode, modified 10 mode and highway profile, respectively when pressure coupling configuration was adopted.

참고문헌 (16)

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상세보기
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상세보기
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상세보기
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상세보기
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