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:
Aug. 21, 2018
Filed:
Nov. 13, 2015
Borgwarner Inc., Auburn Hills, MI (US);
Donn W. Niffenegger, Warren, MI (US);
Larry A. Pritchard, Macomb, MI (US);
BorgWarner, Inc., Auburn Hills, MI (US);
Abstract
A vehicle powertrain hydraulic system () includes a clutch (), a piston () disposed in a cylinder () to drive a shift selector (), a pump () in fluid communication with a fluid supply () to pressurize fluid, and first and second fluid pressure lines () from the pump to first and second sides of the piston. A third fluid pressure line () may extend to the clutch from the cylinder in a location between the first and second sides of the piston, such that the piston also may be a valve to control fluid flow to the clutch. The pump may be reversible and coupled to an electric motor (), and a centrifugal regulator () may be coupled to the motor and in fluid communication with the first and second pump pressure lines to regulate fluid pressure therein. A related operational method is also disclosed.