TY - JOUR A2 - Tsang, D. A2 - Sung, W.-P. A2 - Kao, C.-M. A2 - Shih, M.-H. AU - Shen, Wei AU - Jiang, Jihai AU - Su, Xiaoyu AU - Karimi, Hamid Reza PY - 2013 DA - 2013/09/30 TI - Energy-Saving Analysis of Hydraulic Hybrid Excavator Based on Common Pressure Rail SP - 560694 VL - 2013 AB - Energy-saving research of excavators is becoming one hot topic due to the increasing energy crisis and environmental deterioration recently. Hydraulic hybrid excavator based on common pressure rail (HHEC) provides an alternative with electric hybrid excavator because it has high power density and environment friendly and easy to modify based on the existing manufacture process. This paper is focused on the fuel consumption of HHEC and the actuator dynamic response to assure that the new system can save energy without sacrificing performance. Firstly, we introduce the basic principle of HHEC; then, the sizing process is presented; furthermore, the modeling period which combined mathematical analysis and experiment identification is listed. Finally, simulation results show that HHEC has a fast dynamic response which can be accepted in engineering and the fuel consumption can be reduced 21% to compare the original LS excavator and even 32% after adopting another smaller engine. SN - 2356-6140 UR - https://doi.org/10.1155/2013/560694 DO - 10.1155/2013/560694 JF - The Scientific World Journal PB - Hindawi Publishing Corporation KW - ER -