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. 16, 2005
Filed:
Oct. 01, 2003
Woong-chul Yang, Ann Arbor, MI (US);
Ilya Kolmanovsky, Ypsilanti, MI (US);
Davorin Hrovat, Ann Arbor, MI (US);
Woong-chul Yang, Ann Arbor, MI (US);
Ilya Kolmanovsky, Ypsilanti, MI (US);
Davorin Hrovat, Ann Arbor, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A system is described for minimizing engine torque disturbances that would otherwise cause degraded drive feel by a vehicle driver. The system utilizes multiple torque transmission paths of a transaxle unit mounted to the engine. The system manipulates the torque transmitted by adjusting the clutches of multiple torque transmission paths so that the torque disturbance in the engine results in relatively constant vehicle drive torque. In one example, a potential torque increase due to variation in engine compression ratio is reduced using multiple paths of the transmission. In this way, relatively constant output torque can be maintained.