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:
May. 08, 2018
Filed:
Apr. 12, 2016
GM Global Technology Operations Llc, Detroit, MI (US);
Yan Ann Chen, Windsor, CA;
Samuel J. Harbin, White Lake, MI (US);
John C. Buchanan, Lake Orion, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A transmission storage oil level control system includes a first fluid reservoir and a second fluid reservoir separated from the first fluid reservoir by a barrier. A valve positioned in the barrier is controlled to open and close a fluid communication path between the second fluid reservoir and the first fluid reservoir. The valve is normally closed when a temperature of the hydraulic fluid is above a predetermined value. A sensor is positioned in at least one of the first reservoir and the second reservoir. The sensor identifies a condition of a hydraulic fluid. A control device communicates with the valve to apply a signal received from the sensor to selectively open and close the valve when the temperature of the hydraulic fluid is above the predetermined value.