CN104121346A - Single-planet-row confluence hydraulic and mechanical composite double-flow transmission gearbox - Google Patents

Single-planet-row confluence hydraulic and mechanical composite double-flow transmission gearbox Download PDF

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Publication number
CN104121346A
CN104121346A CN201410337988.0A CN201410337988A CN104121346A CN 104121346 A CN104121346 A CN 104121346A CN 201410337988 A CN201410337988 A CN 201410337988A CN 104121346 A CN104121346 A CN 104121346A
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China
Prior art keywords
gear
hydraulic
transmission
clutch
hydraulic transmission
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Application number
CN201410337988.0A
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Chinese (zh)
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CN104121346B (en
Inventor
朱镇
高翔
潘道远
夏长高
商高高
韩江义
朱彧
闫成
韩梅梅
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Jiangsu University
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Jiangsu University
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Publication of CN104121346A publication Critical patent/CN104121346A/en
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Publication of CN104121346B publication Critical patent/CN104121346B/en
Expired - Fee Related legal-status Critical Current
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H47/00Combinations of mechanical gearing with fluid clutches or fluid gearing
    • F16H47/02Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
    • F16H47/04Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

A single-planet-row confluence hydraulic and mechanical composite double-flow transmission gearbox comprises an input shaft, an output shaft, a mechanical transmission assembly, a hydraulic transmission assembly, a single-planet-row confluence mechanism assembly and a gear shifting mechanism assembly. The mechanical transmission assembly comprises a mechanical transmission input clutch. The hydraulic transmission assembly comprises a hydraulic transmission input clutch, a hydraulic transmission gear pair, a variable pump, a constant displacement motor, a hydraulic transmission output clutch and a hydraulic transmission output shaft. The single-planet-row confluence mechanism assembly comprises a sun gear, a planet carrier, a gear ring, a gear ring input shaft, a planet carrier output shaft, a sun gear brake and a gear ring brake. The gear shifting mechanism assembly outputs walking power through an output shaft. The gearbox has the advantages that the transmission mode can be switched according to needs, and the use performance of the gearbox is improved; the size and weight of the gearbox are reduced, the structure is simple, and the operation is convenient.

Description

The single planetary row hydraulic machinery Composite Double stream transfer gear box of confluxing
Technical field
The present invention relates to a kind of gearbox, particularly a kind of single planetary row that can realize according to different operating modes different transmission modes hydraulic machinery Composite Double stream transfer gear box of confluxing.
Background technique
Vehicle, in traveling process, for different operating modes, is taked different work patterns, to increase work efficiency.In the starting stage, adopt hydraulic transmission can realize the steady startup of vehicle; At sessions, adopt hydraulic transmission and mechanical transmission to combine and can realize stepless change and the efficient driving of vehicle; In the haulage stage, adopt mechanical transmission to realize the efficient operation of vehicle.For different work patterns, adopt different transmission schemes, be conducive to whole transmission system performance optimum performance, be also conducive to give full play to the power performance and the economy performance of motor.
In current existing gearbox technology, there are pure hydraulic transmission mode, pure mechanical drive mode and Hydrostatic-mechanical Transmission mode, but be difficult to realize three kinds of kinds of drive in a gearbox, combine, adapt to the complex working condition of tractor operation.
Summary of the invention
Goal of the invention: the object of this invention is to provide a kind of single planetary row that can realize according to different operating modes different transmission modes hydraulic machinery Composite Double stream transfer gear box of confluxing.
Technological scheme: a kind of single planetary row hydraulic machinery Composite Double stream transfer gear box of confluxing, comprise input shaft, output shaft, mechanical transmission assembly, hydraulic transmission assembly, single planetary row conflux mechanism assembly and gearshift assembly, described mechanical transmission assembly comprises mechanical transmission input clutch; Described hydraulic transmission assembly comprises hydraulic transmission input clutch, fluid transmission gear pair, variable displacement pump, fixed displacement motor, hydraulic transmission output clutch and hydraulic transmission output shaft; The described single planetary row mechanism assembly that confluxes comprises sun gear, planet carrier, gear ring, gear ring input shaft, planet carrier output shaft, sun gear break and gear ring break, described gear ring break is arranged on gear ring input shaft, and described sun gear break is arranged on hydraulic transmission output shaft; Described input shaft is connected with gear ring input shaft by mechanical transmission input clutch, described mechanical transmission assembly is successively by hydraulic transmission input clutch and secondary variable displacement pump and the fixed displacement motor of driving of fluid transmission gear, the power output of described hydraulic transmission assembly is connected with sun gear with hydraulic transmission output shaft by hydraulic transmission output clutch successively, the described single planetary row mechanism assembly that confluxes is connected with gearshift assembly by planet carrier output shaft, and described gearshift assembly is exported walking power by output shaft.
Principle:
During pure hydraulic transmission, hydraulic transmission input clutch, hydraulic transmission output clutch and gear ring break engage, sun gear break is separated with mechanical transmission input clutch, engine power passes through input shaft successively, hydraulic transmission input clutch, secondary variable displacement pump and the fixed displacement motor of driving of fluid transmission gear, the power of fixed displacement motor output passes to sun gear by hydraulic transmission output clutch and hydraulic transmission output shaft successively, gear ring break engages gear ring and cannot move, sun gear directly drives planet carrier rotation, and then drive planet carrier output shaft to rotate, power is by gearshift assembly, through output shaft, export, realize pure hydraulic transmission.
During pure mechanical transmission, mechanical transmission input clutch and sun gear break engage, hydraulic transmission input clutch, hydraulic transmission output clutch are separated with gear ring break, engine power successively by input shaft, mechanical transmission input clutch and gear ring input shaft by transmission of power to gear ring; Because sun gear break engages, sun gear cannot move, and gear ring directly drives planet carrier rotation, and then drives planet carrier output shaft rotation, and then drives planet carrier output shaft rotation, and power, by gearshift assembly, through output shaft output, is realized pure mechanical transmission.
During hydraulic mechanical composite transmission, mechanical transmission input clutch, hydraulic transmission input clutch and hydraulic transmission output clutch engage, and sun gear break is separated with gear ring break, and now engine power is shunted by input shaft; Part power passes to gear ring through mechanical transmission input clutch; Part power, through hydraulic transmission input clutch and secondary variable displacement pump and the fixed displacement motor of driving of fluid transmission gear, then passes to sun gear by hydraulic transmission output clutch and hydraulic transmission output shaft; Finally by single planetary row conflux mechanism assembly conflux after by transmission of power to gearshift assembly, finally by output shaft, export, realize Hydrostatic-mechanical Transmission.。
The present invention can be switched the gearbox of pure hydraulic transmission, machine liquid Composite Transmission, three kinds of patterns of pure mechanical transmission as required, has improved the usability of gearbox.
Preference, in order to meet the demand of tractor dynamic power output, described mechanical transmission assembly also comprises pto=power take-off gear pair and pto=power take-off, described input shaft by hydraulic transmission input clutch and the secondary pto=power take-off gear pair that drives of fluid transmission gear, makes power export from pto=power take-off successively.
Preference, in order to make gearbox designs compacter, described gearshift assembly comprises low-regime clutch, low-grade location change gear pair, high-regime clutch, high tap position change gear pair, reverse clutch, reverse gear change gear pair and transition gear group; Described output shaft is connected with reverse gear change gear pair by high tap position change gear pair respectively with planet carrier output shaft; Described transition gear group is arranged on pto=power take-off and meshes with low-grade location change gear pair and high tap position change gear pair respectively.Because gearshift assembly of the present invention has adopted high and low shift two mark structures, therefore the velocity ratio of bottom gear is larger, in order to optimize gearbox designs, adopt filter teeth wheel group structure, use pto=power take-off as support, during low gear, low-regime clutch engages, high-regime clutch is separated with reverse clutch, and power is delivered to output shaft by high tap position change gear pair, transition gear group and low-grade location change gear pair from planet carrier output shaft successively; During top gear, high-regime clutch engages, and low-regime clutch is separated with reverse clutch, and power is directly delivered to output shaft by high tap position change gear pair from planet carrier output shaft; During reverse gear, reverse clutch engages, low-regime clutch during with top gear high-regime clutch separated, power is directly delivered to output shaft by reverse gear change gear pair from planet carrier output shaft.
Preference, the switching of mode of operation, during vehicle launch, pure hydraulic transmission pattern, hydraulic transmission input clutch, hydraulic transmission output clutch and gear ring break engage, and sun gear break is separated with mechanical transmission input clutch; When pure hydraulic transmission speed reaches certain value, mechanical transmission input clutch engages, and gear ring break is separated, realizes pure hydraulic transmission to the transition of Hydrostatic-mechanical Transmission, and Hydrostatic-mechanical Transmission is for the farm work of tractor; Hauling operation adopts pure mechanical transmission, and mechanical transmission input clutch and sun gear break engage, and hydraulic transmission input clutch, hydraulic transmission output clutch are separated with gear ring break.
While adopting hydraulic transmission pattern and Hydrostatic-mechanical Transmission pattern during farm work, dynamicly from pto=power take-off, export; During hauling operation, adopt pure mechanical transmission pattern, unpowered output, hydraulic transmission input clutch is separated.
Beneficial effect: 1, the present invention can be switched the gearbox of pure hydraulic transmission, machine liquid Composite Transmission, three kinds of patterns of pure mechanical transmission as required, has improved the usability of gearbox; 2, reduced size and the weight of gearbox, simple in structure, easy to operate; 3, forward gear and retreat shelves, pure hydraulic pressure shelves, hydraulic machinery shelves and pure machinery shelves in due course machine can steadily be shifted gears.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
During pure hydraulic transmission, hydraulic transmission input clutch 41, hydraulic transmission output clutch 45 and gear ring break 57 engage, sun gear break 56 is separated with mechanical transmission input clutch 31, engine power is successively by input shaft 1, hydraulic transmission input clutch 41, fluid transmission gear secondary 42 drives variable displacement pump 43 and fixed displacement motor 44, the power of fixed displacement motor 44 outputs passes to sun gear 51 by hydraulic transmission output clutch 45 and hydraulic transmission output shaft 46 successively, because gear ring break 57 engages, gear ring 53 cannot move, sun gear 51 directly drives planet carrier 52 rotations, and then drive planet carrier output shaft 55 to rotate, because low-regime clutch 61 engages, power is through high tap position change gear pair 64, transition gear pair 67, low-grade location change gear pair 62, through output shaft 2 outputs, realize pure hydraulic transmission.
During the transmission of hydraulic machinery low-grade location, mechanical transmission input clutch 31, hydraulic transmission input clutch 41 and hydraulic transmission output clutch 45 engage, and sun gear break 56 is separated with gear ring break 57, and now engine power is shunted by input shaft 1; Part power passes to gear ring 53 through mechanical transmission input clutch 31; Part power drives variable displacement pump 43 and fixed displacement motor 44 through hydraulic transmission input clutch 41 and fluid transmission gear secondary 42, then by hydraulic transmission output clutch 45 and hydraulic transmission output shaft 46, passes to sun gear 51; Finally by the single planetary row mechanism assembly 5 that confluxes, conflux, the motivational drive planet carrier 52 that confluxes rotates, and then drive planet carrier output shaft 55 to rotate, and then drive planet carrier output shaft 55 to rotate, because low-regime clutch 61 engages, power, through high tap position change gear pair 64, transition gear pair 67, low-grade location change gear pair 62, through output shaft 2 outputs, is realized the transmission of hydraulic machinery low-grade location.
During the transmission of hydraulic machinery high tap position, mechanical transmission input clutch 31, hydraulic transmission input clutch 41 and hydraulic transmission output clutch 45 engage, and sun gear break 56 is separated with gear ring break 57, and now engine power is shunted by input shaft 1; Part power passes to gear ring 53 through mechanical transmission input clutch 31; Part power drives variable displacement pump 43 and fixed displacement motor 44 through hydraulic transmission input clutch 41 and fluid transmission gear secondary 42, then by hydraulic transmission output clutch 45 and hydraulic transmission output shaft 46, passes to sun gear 51; Finally by the single planetary row mechanism assembly 5 that confluxes, conflux, motivational drive planet carrier 52 rotations of confluxing, and then drive planet carrier output shaft 55 rotations, because high-regime clutch 63 engages, power, through high tap position change gear pair 64, through output shaft 2 outputs, is realized the transmission of hydraulic machinery high tap position.
During pure mechanical transmission, mechanical transmission input clutch 31 and sun gear break 56 engage, hydraulic transmission input clutch 41, hydraulic transmission output clutch 45 are separated with gear ring break 56, engine power successively by input shaft 1, mechanical transmission input clutch 31 and gear ring input shaft 54 by transmission of power to gear ring 53; Because sun gear break 56 engages, sun gear 51 cannot move, and gear ring 53 directly drives planet carrier 52 rotations, and then drive planet carrier output shaft 55 rotations, because high-regime clutch 63 engages, power is through high tap position change gear pair 64, through output shaft 2 outputs, realize pure mechanical transmission.
Pure hydraulic transmission, Hydrostatic-mechanical Transmission and pure mechanically operated reverse gear adopt gear to change transmission direction, reverse clutch 65 engages, high-regime clutch 63 separation, power from planet carrier output shaft 55 outputs, because engaged reverse clutch 65 engages, power, through reverse gear position change gear pair 66, through output shaft 2 outputs, is realized reverse gear function.
During vehicle launch, adopt pure hydraulic transmission working method, now hydraulic transmission input clutch 41, hydraulic transmission output clutch 45 and gear ring break 57 engage, and sun gear break 56 is separated with mechanical transmission input clutch 31.When pure hydraulic transmission speed reaches certain value, mechanical transmission input clutch 31 engages, and 5 separation of gear ring break, realize pure hydraulic transmission to the transition of Hydrostatic-mechanical Transmission, and Hydrostatic-mechanical Transmission is used for the farm work of tractor.Hauling operation more adopts pure mechanical transmission, and now, mechanical transmission input clutch 31 and sun gear break 56 engage, and hydraulic transmission input clutch 41, hydraulic transmission output clutch 45 are separated with gear ring break 56.
While adopting hydraulic transmission pattern and Hydrostatic-mechanical Transmission pattern during farm work, engine power drives pto=power take-off gear pair 32 through hydraulic transmission input clutch 41 and fluid transmission gear secondary 42, and power is through pto=power take-off 33 outputs; During hauling operation, adopt pure mechanical transmission pattern, unpowered output, 41 separation of hydraulic transmission input clutch.

Claims (5)

1. the single planetary row mechanical-hydraulic Composite Double stream transfer gear box of confluxing, comprise input shaft (1), output shaft (2), mechanical transmission assembly (3), hydraulic transmission assembly (4), single planetary row conflux mechanism assembly (5) and gearshift assembly (6), it is characterized in that: described mechanical transmission assembly (3) comprises mechanical transmission input clutch (31), described hydraulic transmission assembly (4) comprises hydraulic transmission input clutch (41), fluid transmission gear secondary (42), variable displacement pump (43), fixed displacement motor (44), hydraulic transmission output clutch (45) and hydraulic transmission output shaft (46), the described single planetary row mechanism assembly (5) that confluxes comprises sun gear (51), planet carrier (52), gear ring (53), gear ring input shaft (54), single planet carrier output shaft (55), sun gear break (56) and gear ring break (57), it is upper that described gear ring break (57) is arranged on gear ring input shaft (54), and described sun gear break (56) is arranged on hydraulic transmission output shaft (46), described input shaft (1) is connected with gear ring input shaft (54) by mechanical transmission input clutch (31), described mechanical transmission assembly (3) drives variable displacement pump (43) and fixed displacement motor (44) by hydraulic transmission input clutch (41) and fluid transmission gear secondary (42) successively, the power output of described hydraulic transmission assembly (4) is connected with sun gear (51) with hydraulic transmission output shaft (46) by hydraulic transmission output clutch (45) successively, the described single planetary row mechanism assembly (5) that confluxes is connected with gearshift assembly (6) by single planet carrier output shaft (55), described gearshift assembly (6) is by output shaft (2) output walking power.
2. the single planetary row according to claim 1 mechanical-hydraulic Composite Double stream transfer gear box of confluxing, it is characterized in that: described mechanical transmission assembly (3) also comprises pto=power take-off gear pair (32) and pto=power take-off (33), described input shaft (1) drives pto=power take-off gear pair (32) by hydraulic transmission input clutch (41) and fluid transmission gear secondary (42) successively, and power is exported from pto=power take-off (33).
3. the single planetary row according to claim 2 mechanical-hydraulic Composite Double stream transfer gear box of confluxing, is characterized in that: described gearshift assembly (6) comprises low-regime clutch (61), low-grade location change gear pair (62), high-regime clutch (63), high tap position change gear pair (64), reverse clutch (65), reverse gear change gear pair (66) and transition gear group (67); Described output shaft (2) is connected with reverse gear change gear pair (66) by high tap position change gear pair (64) respectively with single planet carrier output shaft (55); Described transition gear group (67) is arranged on pto=power take-off (33) and meshes with low-grade location change gear pair (62) and high tap position change gear pair (64) respectively.
4. the single planetary row according to claim 1 mechanical-hydraulic Composite Double stream transfer gear box of confluxing, it is characterized in that: during vehicle launch, adopt pure hydraulic transmission pattern, hydraulic transmission input clutch (41), hydraulic transmission output clutch (45) and gear ring break (57) engage, and sun gear break (56) is separated with mechanical transmission input clutch (31); When pure hydraulic transmission speed reaches certain value, mechanical transmission input clutch (31) engages, and gear ring break (5) separation, realizes pure hydraulic transmission to the transition of Hydrostatic-mechanical Transmission, and Hydrostatic-mechanical Transmission pattern is for the farm work of tractor; Hauling operation adopts pure mechanical transmission pattern, and mechanical transmission input clutch (31) and sun gear break (56) engage, and hydraulic transmission input clutch (41), hydraulic transmission output clutch (45) are separated with gear ring break (56).
5. the single planetary row according to claim 4 mechanical-hydraulic Composite Double stream transfer gear box of confluxing, is characterized in that: while adopting hydraulic transmission pattern and Hydrostatic-mechanical Transmission pattern during farm work, dynamicly from pto=power take-off (33), export; During hauling operation, adopt pure mechanical transmission pattern, unpowered output, hydraulic transmission input clutch (41) separation.
CN201410337988.0A 2014-07-16 2014-07-16 Single planetary row confluxes hydraulic machinery compound split path transmission wheel box Expired - Fee Related CN104121346B (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104455242A (en) * 2014-11-12 2015-03-25 上海理工大学 Transmission
CN107044514A (en) * 2017-03-17 2017-08-15 南京泓凯动力系统科技有限公司 A kind of hybrid variable-speed transmission device
CN109488740A (en) * 2019-01-02 2019-03-19 石河子大学 A kind of single bipolar system hydraulic mechanical stepless gearbox
CN109751381A (en) * 2019-01-16 2019-05-14 江苏大学 A kind of multifunctional stepless change gear transmission device
CN109764107A (en) * 2019-01-16 2019-05-17 江苏大学 A kind of variable speed drive
CN110822053A (en) * 2019-10-08 2020-02-21 江苏大学 Multi-power distribution mode mechanical-hydraulic composite transmission device and control method
CN111734809A (en) * 2020-02-19 2020-10-02 江苏大学 Hydraulic mechanical transmission device with double-clutch speed change and control method thereof
CN111946793A (en) * 2020-07-20 2020-11-17 江苏大学 Mechanical-hydraulic compound transmission device with energy management mechanism
CN113137462A (en) * 2021-05-18 2021-07-20 吉林大学 Walking transmission device of working vehicle and control method thereof
CN113147378A (en) * 2021-05-18 2021-07-23 吉林大学 Multi-mode mechanical hydraulic transmission device and control method thereof
WO2023155216A1 (en) * 2022-02-17 2023-08-24 江苏大学 Hydro-mechanical series-parallel all-in-one transmission apparatus, and control method therefor

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RU2238457C2 (en) * 2002-12-02 2004-10-20 Республиканское унитарное предприятие "Минский тракторный завод" Hydromechanical transmission
WO2009047037A1 (en) * 2007-10-02 2009-04-16 Zf Friedrichshafen Ag Hydrostatic-mechanical power split transmission
KR20120005671A (en) * 2010-07-09 2012-01-17 동양물산기업 주식회사 Continuously variable transmission of tractor
CN203697946U (en) * 2014-02-20 2014-07-09 合肥工业大学 Oil, electricity and hydraulic pressure hybrid power drive system

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RU2238457C2 (en) * 2002-12-02 2004-10-20 Республиканское унитарное предприятие "Минский тракторный завод" Hydromechanical transmission
WO2009047037A1 (en) * 2007-10-02 2009-04-16 Zf Friedrichshafen Ag Hydrostatic-mechanical power split transmission
KR20120005671A (en) * 2010-07-09 2012-01-17 동양물산기업 주식회사 Continuously variable transmission of tractor
CN203697946U (en) * 2014-02-20 2014-07-09 合肥工业大学 Oil, electricity and hydraulic pressure hybrid power drive system

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104455242A (en) * 2014-11-12 2015-03-25 上海理工大学 Transmission
CN107044514A (en) * 2017-03-17 2017-08-15 南京泓凯动力系统科技有限公司 A kind of hybrid variable-speed transmission device
CN109488740A (en) * 2019-01-02 2019-03-19 石河子大学 A kind of single bipolar system hydraulic mechanical stepless gearbox
CN109764107B (en) * 2019-01-16 2021-08-03 江苏大学 Variable speed transmission device
CN109751381A (en) * 2019-01-16 2019-05-14 江苏大学 A kind of multifunctional stepless change gear transmission device
CN109764107A (en) * 2019-01-16 2019-05-17 江苏大学 A kind of variable speed drive
CN110822053B (en) * 2019-10-08 2022-04-26 江苏大学 Multi-power distribution mode mechanical-hydraulic composite transmission device and control method
CN110822053A (en) * 2019-10-08 2020-02-21 江苏大学 Multi-power distribution mode mechanical-hydraulic composite transmission device and control method
CN111734809A (en) * 2020-02-19 2020-10-02 江苏大学 Hydraulic mechanical transmission device with double-clutch speed change and control method thereof
CN111734809B (en) * 2020-02-19 2023-05-09 江苏大学 Hydraulic mechanical transmission device with double clutch speed change and control method thereof
CN111946793A (en) * 2020-07-20 2020-11-17 江苏大学 Mechanical-hydraulic compound transmission device with energy management mechanism
CN111946793B (en) * 2020-07-20 2021-08-03 江苏大学 Mechanical-hydraulic compound transmission device with energy management mechanism
CN113137462A (en) * 2021-05-18 2021-07-20 吉林大学 Walking transmission device of working vehicle and control method thereof
CN113147378A (en) * 2021-05-18 2021-07-23 吉林大学 Multi-mode mechanical hydraulic transmission device and control method thereof
CN113137462B (en) * 2021-05-18 2022-05-03 吉林大学 Walking transmission device of working vehicle and control method thereof
CN113147378B (en) * 2021-05-18 2022-10-04 吉林大学 Multi-mode mechanical hydraulic transmission device and control method thereof
WO2023155216A1 (en) * 2022-02-17 2023-08-24 江苏大学 Hydro-mechanical series-parallel all-in-one transmission apparatus, and control method therefor
GB2619182A (en) * 2022-02-17 2023-11-29 Univ Jiangsu Hydro-mechanical series and parallel transmission device and control method thereof

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