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:
Mar. 13, 2001
Filed:
Dec. 10, 1999
Dan Coffey, Howell, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A powertrain has an engine and a transmission. The transmission provides six forward speed ratios and one reverse speed ratio between the engine and an output shaft of the transmission. The transmission has two compound planetary gear sets each having three rotatable members including a sun gear member, a ring gear member, and a planetary carrier assembly member. The ring gear member of one of the planetary gear sets is continuously connected with the output shaft. Each planetary gear set has at least two members that are connectable to receive power from the engine through selectively engageable rotating torque transmitting mechanism. One member of each planetary gear set are interconnected and operatively connected with a selectively engageable stationary torque transmitting mechanism to provide reaction members during the reverse speed ratio. Two additional selectively engageable stationary torque transmitting mechanisms are provided to establish reaction members in the other planetary gear set during five of the six forward speed ratios.