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:
Nov. 30, 2004
Filed:
May. 14, 2002
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
In a hybrid vehicle control system equipped with an internal combustion engine ( ), an electric motor ( ) connected to the engine through a hydraulic clutch ( ) and an automatic transmission ( ) connected to the motor to be inputted with an output torque outputted from the engine and the motor to transmit the same to driven wheels ( ) of the vehicle, the output torque of the motor (TM) and supply of hydraulic pressure to the clutch (PCL) is increased until the determined speed difference (dN) is less than a threshold value (dN ) and then the output torque of the engine is reduced such that the engine speed (NE) is synchronized with the motor speed (NM) when the speed difference (dN) becomes less than the predetermined value (dN ), while increasing the supply of hydraulic pressure to a line pressure equivalent value. With this, it can effectively reduces shock at clutch engagement during switchover from electric motor-powered driving to internal combustion engine-powered driving.