Hebei Province Key Laboratory of Fluid Power Transmission and Control;
Yanshan University;
Qinhuangdao 066004;
China;
Eaton Hydraulics Systems (Jining) Co. Ltd;
Jining 272023;
China;
Department of Agricultural and Biological Engineering;
University of Illinois at Urbana-Champaign;
Urbana-Champaign IL 61801;
USA;