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. 29, 2017
Filed:
Jan. 25, 2011
Matthew D. Whitton, Howell, MI (US);
Timothy R. Stockdale, Woverine Lake, MI (US);
Amanda P. Igel, Howell, MI (US);
Nathaniel E. Wilke, Waterford, MI (US);
Matthew D. Whitton, Howell, MI (US);
Timothy R. Stockdale, Woverine Lake, MI (US);
Amanda P. Igel, Howell, MI (US);
Nathaniel E. Wilke, Waterford, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A system for a vehicle includes a desired pressure module, a valve actuation module, a filter module, and a capacity detection module. The desired pressure module selectively generates an increase in a desired pressure of hydraulic fluid for a clutch of an automatic transmission. The valve actuation module actuates a solenoid valve based on the desired pressure. The solenoid valve supplies hydraulic fluid to a regulator valve, and the regulator valve supplies hydraulic fluid to the clutch. The filter module filters an acceleration of a shaft of the automatic transmission to generate a filtered acceleration. The capacity detection module indicates whether the clutch reached torque carrying capacity based on the filtered acceleration.