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Meanwhile, a proportional\u2013integral\u2013derivative (PID) controller is also designed to regulate the rotational speed of the motor. Then, a test platform for the hydraulic power take-off system is constructed to verify the correctness of the model. Fortunately, based on model analyses, some useful results are found. Firstly, the PID controller has a visible effect on stabilizing the rotational speed. In addition, a group of optimal control parameters are obtained. Secondly, the influences of the displaced volume on the operation characteristics of the hydraulic power take-off system are found. Meanwhile, the optimal displaced volume is also presented by weighing the efficiency and stability. Finally, the operation modes and regions of the hydraulic power take-off system are obtained, and its rationality is also proved by a simulated running of the system. More importantly, these results can provide a reference to the design and operation of the hydraulic power take-off system.<\/jats:p>","DOI":"10.1177\/0142331220934352","type":"journal-article","created":{"date-parts":[[2020,7,10]],"date-time":"2020-07-10T06:43:31Z","timestamp":1594363411000},"page":"137-150","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":5,"title":["Operation characteristics and methods of the hydraulic power take-off system"],"prefix":"10.1177","volume":"43","author":[{"given":"Qijuan","family":"Chen","sequence":"first","affiliation":[{"name":"Key Laboratory of Transients in Hydraulic Machinery (Wuhan University), Ministry of Education, P.R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Donglin","family":"Yan","sequence":"additional","affiliation":[{"name":"Key Laboratory of Transients in Hydraulic Machinery (Wuhan University), Ministry of Education, P.R. 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