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Title:
A GEAR SHIFTING MECHANISM FOR VEHICLE AUTOMATIC TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2010/003364
Kind Code:
A1
Abstract:
A gear shifting mechanism for vehicle automatic transmission, includes a shell (1), a spline shaft (18) installed in the shell (1), an axial position sensor (4) and a radial rotary position sensor (3) installed on the spline shaft (18), a shift finger (13) connected with the spline shaft (18) through a spline, a gear selecting device and a gear shifting device respectively selected and shifted a gear through the shift finger (13). The gear selecting device utilizes a gear selecting proportion electromagnet (2) for moving the shift finger (13), and controls the automatic gear shift by adjusting the current. The gear selecting device utilizes restoring springs (8; 10; 12), and the restoring springs (8; 10; 12) are stepped disposed. In different positions, different spring can produce different spring force, a corresponding relationship is thus established between the force and the position, and the amount of the gear selecting positions is increasing with the amount of the springs increased, thus the automatic gear shift can be achieved in a transmission having more than six gears.

Inventors:
ZHENG, Yong (8 Changchun Road, Economy & Technology Development ZoneWuhu, Anhui 9, 241009, CN)
郑勇 (中国安徽省芜湖市经济技术开发区长春路8号, Anhui 9, 241009, CN)
Application Number:
CN2009/072658
Publication Date:
January 14, 2010
Filing Date:
July 07, 2009
Export Citation:
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Assignee:
CHERY AUTOMOBILE CO., LTD. (8 Changchun Road, Economy & Technology Development ZoneWuhu, Anhui 9, 241009, CN)
奇瑞汽车股份有限公司 (中国安徽省芜湖市经济技术开发区长春路8号, Anhui 9, 241009, CN)
ZHENG, Yong (8 Changchun Road, Economy & Technology Development ZoneWuhu, Anhui 9, 241009, CN)
International Classes:
F16H59/04
Foreign References:
US6792821B1
CN200982400Y
JP2000320668A
CN2361505Y
CN101328970A
CN101012880A
Attorney, Agent or Firm:
BEIJING SUNHOPE INTELLECTUAL PROPERTY LTD. (Suite 1106, Kunxun Plaza Zhichun Road 9, Haidian District, Beijing 3, 100083, CN)
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