Title:
POWER SPLIT TRANSMISSION SYSTEM AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2022/077736
Kind Code:
A1
Abstract:
A power split transmission system and a vehicle. A hydrostatic transmission mechanism (12, 13) of the power split transmission system is in driving connection with a sun gear of a first planetary row (2) and a sun gear of a second planetary row (3); a planetary carrier of the first planetary row (2) is connected to a planetary carrier of the second planetary row (3); the planetary carrier of the first planetary row (2) is connected to a sun gear of a third planetary row (4); a planetary carrier of the third planetary row (4) is in transmission connection with a main input shaft (1); a first clutch (5) can connect the main input shaft (1) to a gear ring of the second planetary row (3) in a forward rotation manner; and a second clutch (6) can connect the main input shaft (1) to the gear ring of the second planetary row (3) in a reverse rotation manner. A brake (7) can lock a gear ring of the first planetary row (2). A driving disk of a third clutch (10) is in transmission connection with a gear ring of the third planetary row (4); a driving disk of a fourth clutch (11) is in transmission connection with the sun gear of the third planetary row (4); and a driven disk of the third clutch (10) and a driven disk of the fourth clutch (11) are connected to a main output shaft (9). The transmission system realizes a large range of speed regulation, reduces hydrostatic transmission dependence, and shortens gear shift time.
Inventors:
WANG DONGKUN (CN)
ZHOU MINGHUI (CN)
QI BIN (CN)
CHEN YAN (CN)
ZHOU MINGHUI (CN)
QI BIN (CN)
CHEN YAN (CN)
Application Number:
PCT/CN2020/133957
Publication Date:
April 21, 2022
Filing Date:
December 04, 2020
Export Citation:
Assignee:
WEICHAI POWER CO LTD (CN)
LINDE HYDRAULICS CHINA CO LTD (CN)
LINDE HYDRAULICS CHINA CO LTD (CN)
International Classes:
B60K17/10; F16H47/04
Foreign References:
| CN109058403A | 2018-12-21 | |||
| CN110056634A | 2019-07-26 | |||
| CN108825746A | 2018-11-16 | |||
| CN106369136A | 2017-02-01 | |||
| US5156577A | 1992-10-20 | |||
| DE4236671C1 | 1993-11-18 | |||
| CN202022256946U | 2020-10-12 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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