CN113085525A - Electric drive type tractor CVT power assembly with rear-mounted electric PTO structure - Google Patents

Electric drive type tractor CVT power assembly with rear-mounted electric PTO structure Download PDF

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Publication number
CN113085525A
CN113085525A CN202110362221.3A CN202110362221A CN113085525A CN 113085525 A CN113085525 A CN 113085525A CN 202110362221 A CN202110362221 A CN 202110362221A CN 113085525 A CN113085525 A CN 113085525A
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China
Prior art keywords
transmission
pto
motor
drive
generator
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Pending
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CN202110362221.3A
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Chinese (zh)
Inventor
战强
谭贵荣
林志强
黄幼林
董祥欢
毛正松
陈涛
欧阳石坤
王武先
王少尧
陆祖汉
曹少华
谭达辉
刘福平
徐宏雷
姜枭
杨先恺
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Guangxi Yuchai Machinery Co Ltd
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Shandong Yuchai Machinery Co ltd
Guangxi Yuchai Machinery Co Ltd
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Priority to CN202110362221.3A priority Critical patent/CN113085525A/en
Publication of CN113085525A publication Critical patent/CN113085525A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/24—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/52—Driving a plurality of drive axles, e.g. four-wheel drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/543—Transmission for changing ratio the transmission being a continuously variable transmission
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

本发明提供一种后挂电PTO结构的电驱式拖拉机CVT动力总成，包括：发动机、发电机、主驱动电机、变速器、PTO电机、PTO传动箱、前桥、后桥、分动箱和储能单元，所述发动机与发电机传动连接，所述主驱动电机与变速器传动连接，所述变速器与后桥传动连接，所述变速器还与分动箱传动连接，所述分动箱通过前驱动轴与前桥传动连接；所述PTO电机与PTO传动箱传动连接；所述储能单元分别与发电机、主驱动电机和PTO电机电连接；本发明提供的后挂电PTO结构的电驱式拖拉机CVT动力总成，利用电机低速大扭矩、转速范围宽的特性，不进行变速器档位切换，直接使用电机调速，实现了作业过程的无级变速。

Figure 202110362221

The invention provides an electric drive tractor CVT power assembly with a rear-mounted electric PTO structure, comprising: an engine, a generator, a main drive motor, a transmission, a PTO motor, a PTO transmission case, a front axle, a rear axle, a transfer case and The energy storage unit, the engine is drive-connected with the generator, the main drive motor is drive-connected with the transmission, the transmission is drive-connected with the rear axle, and the transmission is also drive-connected with the transfer case, which passes through the front The drive shaft is drive-connected with the front axle; the PTO motor is drive-connected with the PTO gear box; the energy storage unit is electrically connected with the generator, the main drive motor and the PTO motor respectively; The CVT powertrain of the tractor adopts the characteristics of low speed, high torque and wide speed range of the motor. It does not switch gears of the transmission, and directly uses the motor to adjust the speed, which realizes the stepless speed change during the operation.

Figure 202110362221

Description

Electric drive type tractor CVT power assembly with rear-mounted electric PTO structure
Technical Field
The invention belongs to the technical field of transmission, and particularly relates to an electric drive type tractor CVT power assembly with a rear-mounted electric PTO structure.
Background
The existing tractor transmission system is divided into a manual gear shifting transmission system, a power uninterrupted automatic gear shifting transmission system and a hydraulic mechanical stepless speed change transmission system (HMCVT) according to a gear shifting mode.
The manual gear shifting transmission system is adopted, when the tractor works in the field, due to the fact that land resistance changes greatly and the load change of the whole tractor is large, the tractor adopting the manual gear shifting transmission system needs to be frequently stopped and shifted to meet the requirements of traction force and speed of farm tool operation, the working intensity of workers is high, the working efficiency is low, and the working quality is unstable; meanwhile, the rotating speed of the engine is directly related to the speed of the vehicle, the change range of the rotating speed of the engine is large due to the change of the speed of the whole vehicle, and the engine cannot work in a stable and economical rotating speed range, so that the oil consumption is high, the emission is poor, and the vibration and abrasion are large.
The method is characterized in that a tractor power uninterrupted automatic gear shifting transmission system is adopted, and the gear shifting process is carried out under the condition that the power from an engine to a transmission is uninterrupted; the wet-type multi-plate clutch is used as a gear shifting executing mechanism, when gears need to be changed, two clutches for gear shifting are sequentially separated and combined according to the change of control oil pressure, and gear shifting without stopping is achieved during vehicle load running, so that the problem of stopping and gear shifting during manual gear shifting transmission system operation is solved, the operation intensity of workers is reduced, and the operation comfort and the operation efficiency are improved. But has the following major disadvantages:
the engine speed of the uninterrupted automatic power shifting transmission system is directly related to the vehicle speed, the change range of the engine speed is large due to the change of the vehicle speed, the engine cannot work in a stable and economical rotating speed range, and the engine has high oil consumption, poor emission and large vibration abrasion.
Due to the fact that the tractor has multiple operation requirements and multiple gears, the transmission structure needs a large number of clutches and proportional valves, and a 160-horsepower 16-gear transmission is taken as an example: the full-domain automatic transmission needs 8 clutches and 8 hydraulic proportional valves; due to the consistency, the gear shifting performance of the transmission system needs to be debugged and calibrated on a special delivery test bed, the abrasion of a clutch is increased along with the increase of the service time, the gear shifting control time is changed, the smoothness is poor, and gear shifting impact is generated.
At present, the technology of the systems is basically mastered by foreign companies and mainly depends on import, and the transmission system has the disadvantages of complex structure, high price, difficult price reduction and high maintenance cost. For reasons of price, in advanced countries of the world, powershift transmissions are mostly applied to 80-200Hp tractor products.
The traditional power gear shifting transmission is single-power line stepped transmission, realizes super crawling gear (ultra-low speed), and needs a plurality of complex reduction gear trains. Furthermore, the stepless transmission during the main operations such as rotary tillage and the like cannot be realized, i.e. the optimal running speed of the rotary cultivator cannot be matched theoretically.
Adopt hydraulic pressure machinery infinitely variable transmission drive system (HMCVT), this drive system comprises hydraulic pressure plunger variable displacement pump/motor/multirow planetary mechanism/wet clutch and stopper, and the main advantage is: the power of the engine (1) is divided into two power routes through the planet row, one power route is a mechanical power route, and the power is directly transmitted to an input shaft of the transmission (4); one is a hydraulic power route, and after the machine-liquid-machine power conversion process, the hydraulic power route and the input shaft of the speed changer (4) realize the confluence of all power; by the power splitting and converging principle, the torque and the rotating speed of the transmission system can be automatically and continuously changed according to the speed and the traction requirement of the vehicle, and the traction and the speed requirement of the vehicle during speed change can be ensured. The transmission system (HMCVT) realizes stepless automatic change of the vehicle transmission system, and has the advantages of low operation intensity of workers, good operation comfort, high operation efficiency and high quality; because the rotating speed and the torque of the engine are completely decoupled (irrelevant) with the speed and the traction of the whole vehicle, the engine can stably work in a low oil consumption area, and has small vibration and good emission.
The drive train (HMCVT) has the following disadvantages:
the high-pressure variable plunger pump/motor, the proportional valve and the like adopted by the transmission system belong to precise hydraulic coupling parts, have very high requirements on clean and clean assembly, use cleanliness and maintenance cleanliness, need special hydraulic oil and have high use and maintenance cost;
the system transmission adopts a multi-row planetary mechanism and a wet clutch or a brake to realize the regional change of 4-6 gears, the system has a large number of parts and a complex structure, the key technology of the system is basically mastered by foreign companies, products mainly depend on import, and the transmission system has high cost and difficult price reduction.
The transmission efficiency of the transmission system is low, the maximum transmission efficiency can only reach about 80%, and the transmission system has low efficiency and poor fuel economy compared with other transmission systems.
Due to the price and the use and maintenance, the system is used in a very small amount in the Chinese market. For cost reasons, the Hydraulic Mechanical Continuously Variable Transmission (HMCVT) is mostly applied to 200-400 Hp tractor products in advanced countries of the world.
Disclosure of Invention
The invention aims to provide an electric drive type tractor CVT power assembly with a rear-mounted electric PTO structure, and aims to realize the decoupling of an engine, a vehicle speed and a PTO transmission case through the structural design of the power assembly.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
the invention provides an electric drive type tractor CVT power assembly with a rear-mounted electric PTO structure, which comprises: the power transmission system comprises an engine, a generator, a main driving motor, a transmission, a PTO motor, a PTO transmission case, a front axle, a rear axle, a transfer case and an energy storage unit, wherein the engine is in transmission connection with the generator, the main driving motor is in transmission connection with the transmission, the transmission is in transmission connection with the rear axle, the transmission is also in transmission connection with the transfer case, and the transfer case is in transmission connection with the front axle through a front driving shaft; the PTO motor is in transmission connection with the PTO transmission case and is used for providing output power; the energy storage unit is electrically connected with the generator, the main driving motor and the PTO motor respectively.
As a further improvement of the invention, the method also comprises the following steps: the energy storage unit is electrically connected with the high-voltage distribution box and is also electrically connected with the generator, the main driving motor and the PTO motor respectively through the high-voltage distribution box.
As a further improvement of the invention, the method also comprises the following steps: and the charge and discharge interface is electrically connected with the high-voltage distribution box.
The invention has the advantages that:
the electric drive type tractor CVT power assembly with the rear-mounted electric PTO structure provided by the invention utilizes the characteristics of low speed, large torque and wide rotating speed range of the motor, does not switch gears of a transmission, directly uses the motor for speed regulation, and realizes stepless speed change in the operation process. The motor has the characteristics of low speed, large torque and wide speed regulation range, realizes the decoupling of the rotating speed and the vehicle speed of the engine, and has high operation efficiency. The turning radius is small: the wheels on each side are independently controlled to drive in four directions in time-sharing and full time. The motor rotates reversely, and backing is convenient; high transmission efficiency (relative to HMCVT); the battery is used for assisting in power supply, the motor has short-time overload capacity, and the climbing and sill-passing capacity is strong; the motor has large torque and good starting performance of the engine; the whole vehicle starts quickly and has good acceleration; the motor stably runs at a low speed, so that the tractor can crawl at an ultra-low speed; the engine speed and the vehicle speed are decoupled, energy recovery is combined, and oil can be saved in the running process; when the load is small, such as turning in the operation process, the capacity can be recovered, and the oil saving is realized.
Drawings
FIG. 1 is a schematic diagram of the construction of an electric drive tractor CVT power pack of the rear hitch electric PTO configuration of the present invention;
fig. 2 is a schematic circuit wiring diagram of an electric drive tractor CVT power assembly of a rear hitch PTO configuration in accordance with the present invention.
In the figure: 101-engine, 102-generator, 103-main drive motor, 104-transmission, 105-PTO motor, 106-PTO transmission case, 107-front axle, 108-transfer case, 1081-front drive shaft, 109-rear axle, 110-energy storage unit, 111-high voltage distribution box, 112-charging and discharging interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In an embodiment of the present invention, there is provided an electric drive tractor CVT power assembly of a rear hitch electric PTO configuration, as shown in fig. 1, comprising: the system comprises an engine 101, a generator 102, a main driving motor 103, a transmission 104, a PTO motor 105, a PTO transmission case 106, a front axle 107, a rear axle 109, a transfer case 108 and an energy storage unit 110, wherein the engine 101 is in transmission connection with the generator 102 to generate electricity, the engine 101 is not in direct transmission connection with the PTO transmission case 106, the front axle 107 and the rear axle 109, and transmission decoupling of the engine 101 with the PTO transmission case 106, the front axle 107 and the rear axle 109 is realized, so that decoupling of the engine with the vehicle speed and the PTO transmission case is realized; the main driving motor 103 is in transmission connection with a transmission 104, the transmission 104 is in transmission connection with a rear axle 109, the transmission 104 is also in transmission connection with a transfer case 108, and the transfer case 108 is in transmission connection with a front axle 107 through a front driving shaft 1081; PTO motor 105 is drivingly connected to PTO drive housing 106 for providing output power; the energy storage unit 110 is electrically connected to the generator 102, the main driving motor 103 and the PTO motor 105, respectively, for absorbing the electric power transmitted by the generator 102 and providing the electric power to the main driving motor 103 and the PTO motor 105.
In one embodiment, as shown in fig. 2, in order to better organize the distribution of energy, a high voltage distribution box 111 may be further employed, the energy storage unit 110 is electrically connected to the high voltage distribution box 111, the energy storage unit 110 is further electrically connected to the generator 102, the main driving motor 103 and the PTO motor 105 through the high voltage distribution box 111, the high voltage distribution box 111 may transmit the electric energy converted by the generator 102 to the energy storage unit 110, and the high voltage distribution box 111 may further distribute the electric energy of the energy storage unit 110 to the main driving motor 103 and the PTO motor 105; the high voltage distribution box 111 in this embodiment may be a commercially available product or an apparatus disclosed in the prior art (publication No. CN 108657088A).
In an embodiment, with continued reference to fig. 2, in order to perform charging and discharging more optimally, a charging and discharging interface 112 may be further assembled, the charging and discharging interface 112 is electrically connected to the high voltage distribution box 111, and charging to an external device or the energy storage unit 110 may be performed through the charging and discharging interface 112.
Reference in the specification to "some embodiments," "one embodiment," or "an embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in some embodiments," "in one embodiment," or "in an embodiment," or the like, in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Thus, a particular feature, structure, or characteristic illustrated or described in connection with one embodiment may be combined, in whole or in part, with a feature, structure, or characteristic of one or more other embodiments without limitation, as long as the combination is not logical or operational. Additionally, the various elements of the drawings of the present application are merely schematic illustrations and are not drawn to scale.
Having thus described several aspects of at least one embodiment of this invention, it is to be appreciated various alterations, modifications, and improvements will readily occur to those skilled in the art. Such alterations, modifications, and improvements are intended to be within the spirit and scope of the invention.

Claims (3)

1. An electric drive tractor CVT powertrain of a rear hitch electric PTO configuration, comprising: the power transmission system comprises an engine, a generator, a main driving motor, a transmission, a PTO motor, a PTO transmission case, a front axle, a rear axle, a transfer case and an energy storage unit, wherein the engine is in transmission connection with the generator, the main driving motor is in transmission connection with the transmission, the transmission is in transmission connection with the rear axle, the transmission is also in transmission connection with the transfer case, and the transfer case is in transmission connection with the front axle through a front driving shaft; the PTO motor is in transmission connection with the PTO transmission case and is used for providing output power; the energy storage unit is electrically connected with the generator, the main driving motor and the PTO motor respectively.
2. The electric drive tractor CVT powertrain of a rear-mounted electric PTO configuration of claim 1, further comprising: the energy storage unit is electrically connected with the high-voltage distribution box and is also electrically connected with the generator, the main driving motor and the PTO motor respectively through the high-voltage distribution box.
3. The electric drive tractor CVT powertrain of a rear-mounted electric PTO configuration of claim 2, further comprising: and the charge and discharge interface is electrically connected with the high-voltage distribution box.
CN202110362221.3A 2021-04-02 2021-04-02 Electric drive type tractor CVT power assembly with rear-mounted electric PTO structure Pending CN113085525A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102653228A (en) * 2011-03-02 2012-09-05 广西柳工机械股份有限公司 Series-parallel hybrid power loader
CN202492866U (en) * 2012-03-11 2012-10-17 佳木斯大学 Series-parallel combined hybrid loading machine
CN206653918U (en) * 2017-04-28 2017-11-21 四川国创成电池材料有限公司 A kind of hybrid power loads power plants and corresponding loading machine
CN109457744A (en) * 2018-12-28 2019-03-12 徐工集团工程机械股份有限公司科技分公司 A kind of driving control system applied to pure electric vehicle loading machine
CN215435975U (en) * 2021-04-02 2022-01-07 山东玉柴机器有限公司 Electric drive type tractor CVT power assembly with rear-mounted electric PTO structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102653228A (en) * 2011-03-02 2012-09-05 广西柳工机械股份有限公司 Series-parallel hybrid power loader
CN202492866U (en) * 2012-03-11 2012-10-17 佳木斯大学 Series-parallel combined hybrid loading machine
CN206653918U (en) * 2017-04-28 2017-11-21 四川国创成电池材料有限公司 A kind of hybrid power loads power plants and corresponding loading machine
CN109457744A (en) * 2018-12-28 2019-03-12 徐工集团工程机械股份有限公司科技分公司 A kind of driving control system applied to pure electric vehicle loading machine
CN215435975U (en) * 2021-04-02 2022-01-07 山东玉柴机器有限公司 Electric drive type tractor CVT power assembly with rear-mounted electric PTO structure

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