The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 24, 2019
Filed:
Sep. 01, 2016
Johnson Electric International Ag, Murten, CH;
Rui Feng Qin, Hong Kong, CN;
Xiao Ming Wang, Shenzhen, CN;
Ping Hua Tang, Shenzhen, CN;
Hao Chen, Shenzhen, CN;
Lei Jiang, Shenzhen, CN;
Zhi Yang Zhong, Shenzhen, CN;
Nian He Qu, Shenzhen, CN;
Johnson Electric International AG, Murten, CH;
Abstract
An auxiliary oil pump system for a gearbox, comprising: an auxiliary battery; a controller electrically connected to the auxiliary battery; and an auxiliary oil pump driven by the controller using a self-adaptive process, wherein the self-adaptive process comprises: the controller receives current operational pressure signal and compared the current operational pressure signal to a pressure threshold; if the current operational pressure signal is bigger than the pressure threshold, the auxiliary oil pump keeps current rotational speed; if the current operational pressure signal is smaller than the pressure threshold, the auxiliary oil pump improves the rotational speed by a pre-determined speed.