[1] L Ge, L Quan, X G Zhang, et al. Power matching and energy efficiency improvement of hydraulic excavator driven with speed and displacement variable power source. Chinese Journal of Mechanical Engineering, 2019, 32:100, https://doi.org/10.1186/s10033-019-0415-x.
[2] T Chen, L Cai, X F Ma, et al. Modeling and matching performance of a hybrid-power gas engine heat pump system with continuously variable transmission. Building Simulation, 2019, 12(2): 273-283.
[3] G W Jia, W Q Xu, M L Cai, et al. Micron-sized water spray-cooled quasi-isothermal compression for compressed air energy storage. Experimental Thermal and Fluid Science, 2018, 96: 470-481.
[4] D Shaw, J-J Yu, C Chieh. Design of a hydraulic motor system driven by compressed air. Energies, 2013, 6(7): 3149-3166.
[5] M Cheng, B Xu, J H Zhang, et al. Pump-based compensation for dynamic improvement of the electrohydraulic flow matching system. IEEE Transactions on Industrial Electronics, 2017, 64(4): 2903-2913.
[6] Y M Zhang, K Li, G Wang, et al. Nonlinear model establishment and experimental verification of a pneumatic rotary actuator position servo system. Energies, 2019, 12(6): 1096.
[7] T L Brown, V P Atluri, J P Schmiedeler. A low-cost hybrid drivetrain concept based on compressed air energy storage. Applied Energy, 2014, 134: 477-489.
[8] Y M Zhang, M L Cai. Overall life cycle comprehensive assessment of pneumatic and electric actuator. Chinese Journal of Mechanical Engineering, 2014, 27(3): 584-594.
[9] M L Cai. Energy saving technology on pneumatic systems. Chinese Hydraulics & Pneumatics, 2013(8): 1-8. (in Chinese)
[10] J F Li. Energy saving of pneumatic system. Beijing: Machinery Industry Press, 1997. (in Chinese)
[11] R Saidur, N A Rahim, M Hasanuzzaman. A review on compressed-air energy use and energy savings. Renewable and Sustainable Energy Reviews, 2010, 14(4): 1135-1153.
[12] Y M Zhang, S Wang, S L Wei, et al. Optimization of control method of air compressor group under intermittent large flow condition. Fluid Machinery, 2017, 45(7): 7-11.
[13] K Baghestan, S M Rezaei, H A Talebi, et al. An energy-saving nonlinear position control strategy for electro-hydraulic servo systems. ISA Trans., 2015, 59: 268-279.
[14] S P Yang, H Yu, J G Liu, et al. Research on power matching and energy saving control of power system in hydraulic excavator. Journal of Mechanical Engineering, 2014, 50(5): 152-160. (in Chinese)
[15] M Cheng, B Xu, J H Zhang, et al. Valve-based compensation for controllability improvement of the energy-saving electrohydraulic flow matching system. Journal of Zhejiang University: Science A, 2017, 18(6): 430-442.
[16] B Xu, M Cheng, H Y Yang, et al. A hybrid displacement/pressure control scheme for an electrohydraulic flow matching system. IEEE/ASME Transactions on Mechatronics, 2015, 20(6): 2771-2782.
[17] W N Huang, L Quan, J H Huang, et al. Flow matching with combined control of the pump and the valves for the independent metering swing system of a hydraulic excavator. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2018, 232(10): 1310-1322.
[18] B Xu, M Cheng, H Y Yang, et al. Electrohydraulic flow matching system with bypass pressure compensation. Journal of Zhejiang University (Engineering Science), 2015, 49(9): 1762-1767. (in Chinese)
[19] Y Z Kan, D Y Sun, Y Luo, et al. Optimal design of power matching for wheel loader based on power reflux hydraulic transmission system. Mechanism and Machine Theory, 2019, 137: 67-82.
[20] H Y Yang, W Liu, B Xu, et al. Characteristic analysis of electro-hydraulic flow matching control system in hydraulic excavator. Journal of Mechanical Engineering, 2012, 48(14): 156-163. (in Chinese)
[21] X Guo, C Lu, J Li, et al. Analysis of motor-pump system power matching based on genetic algorithm. EEA - Electrotehnica, Electronica, Automatica, 2018, 66(1): 93-99.
[22] X Wang, H Lv, Q Sun, et al. A proportional resonant control strategy for efficiency improvement in extended range electric vehicles. Energies, 2017, 10(2): 204.
[23] X L Lai, C Guan. A parameter matching method of the parallel hydraulic hybrid excavator optimized with genetic algorithm. Mathematical Problems in Engineering, 2013: 1-6.
[24] X D Yan, L Quan, J Yang. Analysis on steering characteristics of wheel loader based on electric-hydraulic flow matching principle. Transactions of the Chinese Society of Agricultural Engineering, 2015, 31(18): 71-78. (in Chinese)
[25] L C Xu, X M Hou. Power matching on loader engine and hydraulic torque converter based on typical operating conditions. Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering, 2015, 31(7): 80-84. (in Chinese)
[26] X H Fu, M L Cai, W Y X ang, et al. Optimization study on expansion energy used air-powered vehicle with pneumatic-hydraulic transmission. Chinese Journal of Mechanical Engineering, 2018, 31:3, https://doi.org/10.1186/s10033-018-0220-y.
[27] H B Yuan, H Na, Y Kim. Robust MPC–PIC force control for an electro-hydraulic servo system with pure compressive elastic load. Control Engineering Practice, 2018, 79: 170-184.
[28] Y Shi, M L Cai, W Q Xu, et al. Methods to evaluate and measure power of pneumatic system and their applications. Chinese Journal of Mechanical Engineering, 2019, 32:42, https://doi.org/10.1186/s10033-019-0354-6.
[29] Y Shi, T C Wu, M L Cai, et al. Energy conversion characteristics of a hydropneumatic transformer in a sustainable-energy vehicle. Applied Energy, 2016, 171: 77-85.
[30] C C Zhan, X Y Chen. Hydraulic reliability optimization and intelligent fault diagnosis. Beijing: Metallurgical Industry Press, 2015. (in Chinese)
