Title:
A GEAR SHIFT METHOD FOR AN AUTOMATIC STEP GEARBOX OF A VEHICLE
Document Type and Number:
WIPO Patent Application WO/2010/006478
Kind Code:
A1
Abstract:
A gear shift method for an automatic step gearbox of a vehicle involves inputting an engine torque to a high-speed shift or a middle-speed shift directly. According to the vehicle speed and a burthen of an engine, the speed is changed in positive direction to enter to the high-speed shift or is changed in reverse direction to return to the low-speed shift through the gearbox. The automatic gearbox utilizes the method to cancel hydro-transmitter and hydraulic electric controlling system.
Inventors:
HUANG ZHAOHUAN (CN)
Application Number:
PCT/CN2008/071666
Publication Date:
January 21, 2010
Filing Date:
July 17, 2008
Export Citation:
Assignee:
HUANG ZHAOHUAN (CN)
International Classes:
F16H61/00; F16H59/14
Foreign References:
| CN101240844A | 2008-08-13 | |||
| CN1393355A | 2003-01-29 | |||
| CN1971088A | 2007-05-30 | |||
| US5070747A | 1991-12-10 | |||
| US5522779A | 1996-06-04 | |||
| US5938712A | 1999-08-17 | |||
| JPH04100740A | 1992-04-02 |
Other References:
None
Attorney, Agent or Firm:
YIN INT'L IP FIRM (13 Huayuan Road Hiandian District, Beijing 8, CN)
Download PDF: