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:
Apr. 02, 2002
Filed:
Jun. 30, 2000
Philip Thomas Koneda, Novi, MI (US);
Thomas William Megli, Dearborn, MI (US);
Alexander O. Gibson, Ann Arbor, MI (US);
Ford Global Technologies, Inc., Dearborn, MI (US);
Abstract
A control strategy for a hybrid powertrain for an automotive vehicle comprising an internal combustion engine, a geared transmission mechanism for transmitting driving torque to the vehicle traction wheels, and an electric motor arranged in parallel with respect to the internal combustion engine at the torque input side of the transmission. A friction clutch connects and disconnects the engine from the torque flow path as transitions are made between an electric motor driving mode and an engine driving mode. A mechanical damper is located on the torque input side of the clutch. A transition from the electric motor drive mode to the internal combustion engine drive mode is achieved by controlling the engagement of the clutch using a closed loop clutch pressure modulation strategy and controlling the fuel supply to the engine to effect an engine drive mode without triggering undesirable inertia torque fluctuations in the powertrain.