CN112918281A - Plug-in type cotton picker driving hybrid power system - Google Patents

Plug-in type cotton picker driving hybrid power system Download PDF

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Publication number
CN112918281A
CN112918281A CN202110329199.2A CN202110329199A CN112918281A CN 112918281 A CN112918281 A CN 112918281A CN 202110329199 A CN202110329199 A CN 202110329199A CN 112918281 A CN112918281 A CN 112918281A
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motor
power
cotton picker
gear
engine
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CN202110329199.2A
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Chinese (zh)
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CN112918281B (en
Inventor
钟春发
倪向东
魏晓朝
陈华军
叶好运
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Shihezi University
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Shihezi University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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
    • B60K6/365—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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 with the gears having orbital motion
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/46—Series type
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B60L53/22—Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
    • 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
    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T10/72—Electric energy management in electromobility
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention provides a plug-in cotton picker driving hybrid power system which comprises an engine, a transfer case, a generator, a motor, a planetary gear train, a differential mechanism, an inverter and a power battery. By controlling the engine, the clutch, the motor and the generator, the pure electric machine driving and stepless speed regulating functions can be realized in the operation process of the cotton picker. Through the planetary gear train, realize two motor power coupling, promote cotton picker speed and operating efficiency. The energy conversion of the cotton picker in normal operation is realized by controlling the operation of the engine and the generator, chemical energy is converted into mechanical energy through the engine, the mechanical energy is converted into electric energy through the generator and stored in the power battery, and finally the electric energy is converted into mechanical energy through the motor.

Description

Plug-in type cotton picker driving hybrid power system
Technical Field
The invention belongs to the technical field of electromechanical hybrid power, and particularly relates to a hybrid power system for driving of a plug-in cotton picker.
Background
Cotton picker operation conditions are complex, requiring frequent changes in vehicle speed and output torque to match the continuous changes in actual load. Therefore, a cotton picker driving hybrid power system with stepless speed change, variable torque and high transmission efficiency is needed. With the development of battery technology and motor technology, the energy-saving and environment-friendly plug-in hybrid system has been successfully applied to the markets of cars, passenger cars and buses, and has been commercialized, industrialized and scaled. In the prior art, a hydrostatic volume speed regulation loop is adopted to regulate the speed of the vehicle, the mechanical structure and control are complex, the transmission efficiency is low, the energy consumption is large, and the production requirement can not be completely met and the intellectualization can not be realized.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a plug-in type cotton picker driving hybrid power system which is applied to control of the walking speed of the cotton picker. The driver adjusts the running speed and the output torque of the cotton picker according to the requirements of the operation conditions. The speed regulating device is completely driven by a motor, realizes power coupling through a planetary gear gearbox, and realizes efficient stepless speed regulation of the cotton picker.
The invention provides a plug-in cotton picker driving hybrid power system which comprises the following components: the method mainly comprises the following steps: 1-an engine; 2-a transfer case; 3, a generator; 4-an inverter; 5-a power battery; 6-an inverter; 7-a first motor; 8-a first power input shaft; 811-a first sun gear; 812-a first planet; 813-second sun gear; 814-a second planet; 815 — a first power take off gear; 822-a planet carrier; 9-a first power take-off shaft; 911-second power take-off gear; 912-a first power input gear; 10-differential gear; 11-a clutch; 12-second motor.
Wherein, the engine 1 is connected with the transfer case 2 through an output shaft; after the power of the engine 1 is distributed by the transfer case 2, the power battery is charged through the generator 3 and the inverter 4; the transfer case 2 and the generator 3 are mechanically connected,
the motor 7 is connected with a first input shaft 8, and a first planetary gear 812, a second sun gear 813 and a first power output gear 815 are installed on the first power input shaft 8; wherein the first power input shaft 8 and the first planetary gear 812 are connected through a key, the second sun gear 813 and the first power output gear 815 are connected with the first power input shaft 8 through a bearing and can rotate, and the second sun gear 813 and the first power output gear 815 are integrated gears; the second motor 12 is connected with a planet carrier 822, the planet carrier 822 is provided with a first planet gear 812 and a second planet gear 814 through bearings, the first planet gear 812 and the second planet gear 814 are also integrated gears, and the first power output shaft 9 is provided with a first power input gear 912 and a second power output gear 911 through keys; the first sun gear 811 is intermeshed with the first planetary gear 812, the second sun gear 813 is intermeshed with the second planetary gear 814, the first power take-off gear 815 is intermeshed with the first power input gear 912, and the second power take-off gear 911 is intermeshed with the differential gear 10.
In which the engine 1, the generator 3, the first motor 7, the second motor 12, and the clutch 11 are controlled in a combined manner. The driving mode of the first electric motor 7, the hybrid driving mode of the first electric motor 7 and the second electric motor 12, the running power generation mode, and the plug-in mode can be realized.
The driving mode of the first motor 7 can realize forward gear and reverse gear of the cotton picker by controlling the forward rotation and the reverse rotation of the first motor 7; the first motor 7 is used for starting the cotton picker and picking in the field, is generally suitable for low-speed and high-torque working conditions, and can realize stepless change of the walking speed of the cotton picker through stepless change of the output rotating speed of the first motor 7.
In the hybrid driving mode of the first motor 7 and the second motor 12, when the cotton picker is in a high-speed low-torque working condition, the double motors are adopted to work, the acceleration performance and the upper limit of the output power are enhanced, and the first motor 7 works in a high-efficiency range. When the working condition of the cotton picker changes suddenly and needs to output large torque and high power, the first motor 7 drives the cotton picker to reach the upper power output limit, and the second motor 12 is controlled to work, so that the working state of the cotton picker tends to be stable, and the stable performance of the cotton picker under the conditions of speed change and complex working conditions is enhanced.
And in a running power generation mode, when the cotton picker works, the control system detects that the available state of the residual batteries of the power battery 5 reaches a set value offline, the engine 1 and the generator 3 are controlled to work, and the power output by the engine 1 charges the power battery 5 through the generator 3 and the inverter 4.
And in the power-on mode, when the cotton picker is stopped and maintained, the cotton picker can be charged by an external power supply.
The invention provides a plug-in type cotton picker driving hybrid power system which is applied to control of the traveling speed of a cotton picker. The driver adjusts the running speed and the output torque of the cotton picker according to the requirements of the operation conditions. The power coupling is realized by a planetary gear transmission box and the engine, the generator, the first motor, the second motor and the clutch are controlled in a combined manner. The driving mode of the motor, the mixed driving mode of the first motor and the second motor, the driving power generation mode and the plug-in mode can be realized; the efficient stepless speed regulation of the cotton picker is realized; the above-mentioned embodiments and drawings are only for illustrating the technical solutions of the present invention and are not to be construed as limiting, and modifications or equivalent substitutions of the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention are included in the claims of the present invention.
Drawings
Fig. 1 is a diagram of a hybrid power system for driving a plug-in cotton picker, which comprises: 1-an engine; 2-a transfer case; 3, a generator; 4-an inverter; 5-a power battery; 6-an inverter; 7-a first motor; 8-a first power input shaft; 811-a first sun gear; 812-a first planet; 813-second sun gear; 814-a second planet; 815 — a first power take off gear; 822-a planet carrier; 9-a first power take-off shaft; 911-second power take-off gear; 912-a first power input gear; 10-differential gear; 11-a clutch; 12-second motor.
The invention is explained in detail below with reference to the drawings.
Wherein the cotton picker is electrically driven in series, and when the cotton picker is normally used for picking in the field, the first motor 7 drives the cotton picker to work; when the first motor 7 independently drives the cotton picker to work, the reverse gear and the forward gear of the cotton picker are realized by controlling the forward and reverse rotation of the motor. When the running speed of the cotton picker is increased, the second motor 12 starts to work, the output rotating speeds of the two motors are subjected to confluence coupling output, and the running speed of the cotton picker is increased; the stepless speed change of the cotton picker is realized by controlling the change of the output rotating speed of the motor.
Detailed Description
It is understood that the running hybrid system of the embodiment has a plurality of operation modes, specifically, as follows.
(1) First motor 7 drive mode: in the working mode, the first motor 7 drives the cotton picker to work independently, the motor 12 does not work, and the engine 1 and the generator 3 do not work; by controlling the clutch 11 to close, the planet carrier 822 is fixed and the rotation speed is zero; the power battery 5 only provides electric energy for the first motor 7, and the cotton picker is started and normally picked through the first motor 7; the reverse gear and the forward gear of the cotton picker are realized by controlling the forward and reverse rotation of the first motor 7. When the first motor 7 rotates forwards, the cotton picker moves forwards, and when the first motor rotates backwards, the cotton picker moves backwards;
power flow of the first motor 7 drive mode: power battery 5 → inverter 6 → first electric motor 7 → first power input shaft 8 → first sun gear 811 → first planetary gear 812 → second planetary gear 814 → second sun gear 813 → first power output gear 815 → first power input gear 912 → first power output shaft 9 → second power output gear 911 → differential gear 10.
(2) First motor 7 and second motor 12 hybrid drive mode: in the working mode, the first motor 7 and the second motor 12 are used for driving the cotton picker to work in a mixing mode; the clutch 11 is separated by controlling the engine 1 and the generator 3 not to work; the hybrid driving mode can realize the high-speed running of the cotton picker, and is generally in the states of field transportation and road transportation;
the first electric motor 7 and the second electric motor 12 mix the power flow in the driving mode:
the first path is as follows: power battery 5 → inverter 6 → first electric motor 7 → first power input shaft 8 → first sun gear 811 → first planetary gear 812 → second planetary gear 814 (power mixing) → second sun gear 813 → first power output gear 815 → first power input gear 912 → first power output shaft 9 → second power output gear 911 → differential gear 10;
and a second path: power battery 5 → inverter 6 → second electric motor 12 → carrier 822 → second planetary gear 814 (power mixing) → second sun gear 813 → first power output gear 815 → first power input gear 912 → first power output shaft 9 → second power output gear 911 → differential gear 10.
(3) The driving power generation mode is as follows: in the working mode, the engine 1 works, and the generator 3 charges the power battery 5 after passing through the transfer case by the power provided by the engine 1; the cotton picker can work in a first motor 7 driving mode or a first motor 7 and second motor 12 hybrid driving mode; when the cotton picker control system detects that the SOC of the power battery reaches a lower limit set value, the cotton picker enters a driving power generation mode;
power flow in a driving power generation mode: power generation power flow: the engine 1 → the transfer case 2 → the generator 3 → the inverter 4 → the power battery 5;
driving power flow: the driving power flow is the first electric motor 7 driving mode, or the first electric motor 7 and the second electric motor 12 hybrid driving mode are the same.
(4) A plug-in mode: when the cotton picker stops, the power battery 5 of the cotton picker is charged by the external power supply of the cotton picker.
The invention provides the above scheme, by controlling the engine, the clutch, the motor and the generator, the stepless speed regulation function can be realized in the operation process of the cotton picker; the power mixing of the double motors is realized through the planetary gear, and the operation speed and the operation efficiency of the cotton picker are improved; the charging of the external power supply of the cotton picker can be realized through the power battery; the above-mentioned embodiments and drawings are only for illustrating the technical solutions of the present invention and are not to be construed as limiting, and modifications or equivalent substitutions of the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention are included in the claims of the present invention.

Claims (3)

1. A plug-in cotton picker driving hybrid power system comprises: the method mainly comprises the following steps: 1-an engine; 2-a transfer case; 3, a generator; 4-an inverter; 5-a power battery; 6-an inverter; 7-a first motor; 8-a first power input shaft; 811-a first sun gear; 812-a first planet; 813-second sun gear; 814-a second planet; 815 — a first power take off gear; 822-a planet carrier; 9-a first power take-off shaft; 911-second power take-off gear; 912-a first power input gear; 10-differential gear; 11-a clutch; 12-second motor.
2. The plug-in cotton picker travel hybrid system according to claim 1, wherein: the engine is mechanically connected to provide power for the transfer case, and the power is distributed by the transfer case and then is charged to the power battery 5 through the generator 3 and the inverter 4; the power battery 5 can also be charged by an external power supply; by jointly controlling the engine 1, the generator 3, the first motor 7, the second motor 12 and the clutch 11, the cotton picker can realize various working modes.
3. The plug-in cotton picker travel hybrid system according to claim 1, wherein: by jointly controlling the engine 1, the generator 3, the first electric motor 7, the second electric motor 12, and the clutch 11; the driving mode of the motor 7, the hybrid driving mode of the first motor 7 and the second motor 12, the driving power generation mode and the plug-in mode can be realized.
CN202110329199.2A 2021-03-27 2021-03-27 Plug-in cotton picker traveling hybrid power system Active CN112918281B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110329199.2A CN112918281B (en) 2021-03-27 2021-03-27 Plug-in cotton picker traveling hybrid power system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110329199.2A CN112918281B (en) 2021-03-27 2021-03-27 Plug-in cotton picker traveling hybrid power system

Publications (2)

Publication Number Publication Date
CN112918281A true CN112918281A (en) 2021-06-08
CN112918281B CN112918281B (en) 2024-07-23

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CN111688484A (en) * 2020-07-31 2020-09-22 石河子大学 Walking hydraulic speed regulating system for cotton picker

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JPH11198669A (en) * 1998-01-16 1999-07-27 Fuji Heavy Ind Ltd Hybrid vehicle
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