Title:
【発明の名称】変速時の変速性能を向上するための方法及び変速制御装置
Document Type and Number:
Japanese Patent JP2000505183
Kind Code:
A
Abstract:
PCT No. PCT/EP97/06646 Sec. 371 Date Dec. 7, 1998 Sec. 102(e) Date Dec. 7, 1998 PCT Filed Nov. 28, 1997 PCT Pub. No. WO98/25054 PCT Pub. Date Jun. 11, 1998An apparatus for gear shifting control with improved shift quality during gear shifting includes a gearbox unit containing at least one gear branch for power transfer via a hydrodynamic clutch. The hydrodynamic clutch can be coupled in series with a mechanical gearing part containing a device for realizing at least two speeds. In the course of power transfer via the hydrodynamic clutch during a gear shift operation between two mechanical speeds, the fill factor of the hydrodynamic clutch is so altered that a variable which at least indirectly characterizes the rotational speed of the primary bucket wheel of the hydrodynamic clutch is held substantially constant over a certain range of the gear shift operation.
Inventors:
Nitsche, Martin
English, Andreas
English, Andreas
Application Number:
JP52516198A
Publication Date:
April 25, 2000
Filing Date:
November 28, 1997
Export Citation:
Assignee:
Voith Turvo Game Behr und Company Comandito Gezel Shaft
International Classes:
F16D33/06; F16H45/00; F16H47/08; F16H61/04; B60T1/087; F16H61/64; F16H61/686; (IPC1-7): F16H61/64; F16H61/04
Attorney, Agent or Firm:
Shoichi Takezawa (1 person outside)