Title:
GEAR-SHIFTING CONTROL SYSTEM OF AUTOMATIC TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2016/078512
Kind Code:
A1
Abstract:
Disclosed is a gear-shifting control system of an automatic transmission, comprising a main pump (11), four gear-shifting oil cylinders (41, 42, 43, 44), a gear-shifting control valve (12), a first gear shifting valve (13), a second gear shifting valve (14), a first gear switch valve (15) and a second gear switch valve (16), wherein the gear-shifting control valve (12) is provided with a pressure input opening (121) and two pressure output openings (122, 123), the first gear shifting valve (13) is provided with two pressure input openings (131, 132) and four pressure output openings (133, 134, 135, 136), and the second gear shifting valve (14) is provided with two pressure input openings (141, 142) and four pressure output openings (143, 144, 145, 146); the first gear switch valve (15) is connected between the first gear shifting valve (13) and the gear-shifting control valve (12) so as to disconnect or connect the gear-shifting control valve (12) and the first gear shifting valve (13); the second gear switch valve (16) is connected between the second gear shifting valve (14) and the gear-shifting control valve (12) so as to disconnect or connect the gear-shifting control valve (12) and the second gear shifting valve (14); and the four pressure output openings (133, 134, 135, 136) of the first gear shifting valve (13) and the four pressure output openings (143, 144, 145, 146) of the second gear shifting valve (14) are connected to the four gear-shifting oil cylinders (41, 42, 43, 44).
Inventors:
WU JIAN (CN)
MO FAN (CN)
HUANG XINZHI (CN)
LIU XUEWU (CN)
ZHANG ANWEI (CN)
MO FAN (CN)
HUANG XINZHI (CN)
LIU XUEWU (CN)
ZHANG ANWEI (CN)
Application Number:
PCT/CN2015/093782
Publication Date:
May 26, 2016
Filing Date:
November 04, 2015
Export Citation:
Assignee:
GUANGZHOU AUTOMOBILE GROUP CO (CN)
International Classes:
F16H61/40; F15B11/08; F16H59/02
Foreign References:
| CN204312690U | 2015-05-06 | |||
| CN204312689U | 2015-05-06 | |||
| CN102230534A | 2011-11-02 | |||
| CN101725705A | 2010-06-09 | |||
| CN102168754A | 2011-08-31 | |||
| CN102884343A | 2013-01-16 | |||
| JPS62127562A | 1987-06-09 |
Other References:
See also references of EP 3222889A4
Attorney, Agent or Firm:
PSHIP FIRM, LLC (CN)
上海波拓知识产权代理有限公司 (CN)
上海波拓知识产权代理有限公司 (CN)
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