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. 22, 2006
Filed:
Nov. 29, 2004
Masahiko Ibamoto, Hitachinaka, JP;
Hiroshi Kuroiwa, Hitachi, JP;
Masahiko Ibamoto, Hitachinaka, JP;
Hiroshi Kuroiwa, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An electric motor is inserted between clutch shafts of a twin-clutch type automatic transmission are controlled for the torque and speed of the electric motor, establishing a smooth and efficient gear shifting control as well for a creep control, idling stop starting control, and R-to-D, D-to-R selecting control being controlled. The pre-stage gear is released after the torque transfer is completed with the electric motor, and the clutch is exchanged after synchronizing the motor speed with the electric motor. As a single transmission can realize multiple functions, there is such an effect that the overall cost can be reduced relatively.