CN115056643A - Hybrid tractor power system and tractor - Google Patents

Hybrid tractor power system and tractor Download PDF

Info

Publication number
CN115056643A
CN115056643A CN202210893315.8A CN202210893315A CN115056643A CN 115056643 A CN115056643 A CN 115056643A CN 202210893315 A CN202210893315 A CN 202210893315A CN 115056643 A CN115056643 A CN 115056643A
Authority
CN
China
Prior art keywords
gear
generator
input shaft
driving motor
transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210893315.8A
Other languages
Chinese (zh)
Inventor
李正宇
李德芳
蔡彦彬
杜杨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weichai Lovol Heavy Industry Co Ltd
Original Assignee
Weichai Lovol Heavy Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weichai Lovol Heavy Industry Co Ltd filed Critical Weichai Lovol Heavy Industry Co Ltd
Priority to CN202210893315.8A priority Critical patent/CN115056643A/en
Publication of CN115056643A publication Critical patent/CN115056643A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • B60K6/24—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 ; 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 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 ; 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
    • B60K6/26—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 ; 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 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 ; 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
    • B60K6/28—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 electric energy storing means, e.g. batteries or capacitors
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2300/00—Indexing codes relating to the type of vehicle
    • B60W2300/15—Agricultural vehicles
    • B60W2300/152—Tractors

Landscapes

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

Abstract

The invention discloses a power system of a hybrid tractor and the tractor, wherein the system comprises: the system comprises an engine, a first generator, a second generator, a first driving motor, a second driving motor, an AMT device, a power output device, a rear axle and a rear wheel set; the engine, the first generator and the second generator are sequentially in transmission connection, the second generator is in transmission connection with a first input shaft of the AMT device, and a first output shaft of the AMT device is in transmission connection with the power output device; the first driving motor and the second driving motor are in transmission connection with a second input shaft and a third input shaft of the AMT device respectively, and a second output shaft of the AMT device is in transmission connection with the rear wheel set through a rear axle; the double-driving motor is adopted to provide the power of the whole tractor, the double-generator is used to provide electric energy, and the requirements of high horsepower and long endurance of the tractor can be met simultaneously; the design and manufacturing difficulty of the motor is reduced by the double-motor system; the transmission system of the invention has high integration level and compact structure, and is convenient for the arrangement of the whole machine.

Description

Hybrid tractor power system and tractor
Technical Field
The invention relates to the technical field of tractors, in particular to a power system of a hybrid tractor and the tractor.
Background
The high-horsepower traditional fuel oil tractor has low efficiency, high energy consumption and serious environmental pollution, so the high-horsepower tractor adopting the traditional fuel oil machine as a power source is difficult to meet the increasingly severe environmental and market requirements. Although the high-horsepower pure electric tractor has the advantages of zero emission and simple transmission, the high-horsepower pure electric tractor cannot meet the long-time working requirement of the tractor due to the limitation of battery endurance and charging efficiency. The engine of hybrid tractor can work in the high-efficient district all the time, can effectual reduction emission, and the pollution abatement, and the engine drives the generator and provides the electric energy, does not worry tractor continuation of the journey problem, and driving motor no longer relies on complicated gearbox as the power supply simultaneously, and transmission system is simple, so hybrid's high horsepower tractor has very big technical advantage.
At present, in the research of hybrid tractors, a single motor is mostly adopted as a power source in a power system, and the hybrid tractors are relatively suitable for medium and small power tractors. Due to the limitation of motor technology and arrangement space of the whole machine, the single-drive motor hybrid power system in the current research is not suitable for a high-horsepower tractor. If a single motor needs to meet the requirement of high horsepower, the design and manufacture difficulty is high, the size and the weight are large, and the arrangement difficulty is high.
Disclosure of Invention
The invention aims to solve the technical problem in the prior art and provides a power system of a hybrid tractor and the tractor.
To solve the above technical problem, the present invention provides a hybrid tractor power system, including: the system comprises an engine, a first generator, a second generator, a first driving motor, a second driving motor, an AMT device, a power output device, a rear axle, a rear wheel set, a high-voltage power distribution device and a power battery;
the engine, the first generator and the second generator are sequentially in transmission connection, the second generator is in transmission connection with a first input shaft of the AMT device, and a first output shaft of the AMT device is in transmission connection with the power output device; the first input shaft is in transmission connection with the first output shaft; the first driving motor is in transmission connection with a second input shaft of the AMT device, the second driving motor is in transmission connection with a third input shaft of the AMT device, a second output shaft of the AMT device is in transmission connection with a rear axle, and the rear axle is in transmission connection with a rear wheel set; the second input shaft and the third input shaft are in transmission connection with the second output shaft; the first input shaft, the second input shaft, the third input shaft, the first output shaft and the second output shaft are arranged in parallel; the first generator, the second generator, the first driving motor and the second driving motor are all electrically connected with a high-voltage distribution device, and the high-voltage distribution device is electrically connected with the power battery.
The invention has the beneficial effects that: the AMT device is provided with three input ports and two output ports, and a first input shaft of the AMT device is in transmission connection with a first output shaft, so that the driving power output of an engine is realized; the second input shaft and the third input shaft are in transmission connection with the second output shaft, so that the power coupling of the dual-motor driving running system is realized; the double-driving motor is adopted to provide the power of the whole tractor, the double-generator is used to provide electric energy, and the requirements of high horsepower and long endurance of the tractor can be met simultaneously; compared with a high-horsepower hybrid power system with a single motor, the system with double motors reduces the design and manufacture difficulty of the motors; the invention has compact structure and is convenient for the arrangement of the whole machine; economic, environment-friendly, energy-saving and efficient.
On the basis of the technical scheme, the invention can be further improved as follows.
Furthermore, a first driving gear is fixed on the first input shaft, a first driven gear is fixed on the first output shaft, and the first driving gear is meshed with the first driven gear.
The power output device has the advantages that the first input shaft is in transmission connection with the first output shaft through the meshing of the first driving gear arranged on the first input shaft and the first driven gear arranged on the first output shaft, the rotating speed of the engine is transmitted to the power output device through the gear set formed by the first driving gear and the first driven gear, and the speed change function of power output is achieved.
Furthermore, a second driving gear is fixed on the second input shaft, a third driving gear is fixed on the third input shaft, and the second driving gear and the third driving gear are both meshed with the power coupling speed change device; the power coupling speed change device is in transmission connection with the second output shaft.
The power coupling speed change device has the advantages that the power coupling speed change device is in transmission connection with the second input shaft, the third input shaft and the second output shaft, power coupling and speed change adjustment of the dual-drive motor are achieved, the integration degree is high, the structure is compact, and overall arrangement is convenient.
Further, the power coupling speed change device comprises a first intermediate shaft and a second intermediate shaft which are arranged in parallel with the second input shaft; a second driven gear, a first low-gear transmission gear and a first high-gear transmission gear are fixed on the first intermediate shaft, and the second driven gear is meshed with a second driving gear; a low-grade idle gear and a high-grade idle gear are fixed on the second output shaft, and the low-grade idle gear is connected with the high-grade idle gear through a synchronizer; the first low-gear transmission gear is meshed with the low-gear idle gear, and the first high-gear transmission gear is meshed with the high-gear idle gear; a third driven gear, a second low-gear transmission gear and a second high-gear transmission gear are fixed on the second intermediate shaft; the third driven gear is meshed with the third driving gear, the second low-gear transmission gear is meshed with the low-gear idler gear, and the second high-gear transmission gear is meshed with the high-gear idler gear.
The second input shaft drives the first intermediate shaft to rotate through the second driving gear and the second driven gear, the first intermediate shaft drives the first low-gear transmission gear and the first high-gear transmission gear on the shaft to transmit in a rotating mode, the first low-gear transmission gear drives the low-gear idle sleeve gear to rotate, the first high-gear transmission gear drives the high-gear idle sleeve gear to rotate, if the synchronizer gear shifting fork is shifted to the side of the low-gear idle sleeve gear, the low-gear idle sleeve gear drives the second output shaft to rotate, and if the synchronizer gear shifting fork is shifted to the side of the high-gear idle sleeve gear, the high-gear idle sleeve gear drives the second output shaft to rotate; similarly, the third input shaft drives the output shaft to rotate according to the mode; the power coupling and speed change adjustment of the dual-drive motor are realized through the power coupling speed change device in the AMT device, the integration degree is high, the structure is compact, and the whole machine arrangement is convenient.
Further, the technical scheme also comprises a vehicle control unit, and an engine controller, a first generator controller, a second generator controller, a first driving motor controller and a second driving motor controller which are connected with the vehicle control unit; the vehicle control unit controls an engine through an engine controller, controls a first generator through a first generator controller, controls a second generator through a second generator controller, controls a first driving motor through a first driving motor controller, and controls a second driving motor through a second driving motor controller.
Furthermore, the technical scheme also comprises a battery management system, and the battery management system is connected with the vehicle control unit and the power battery.
In order to solve the technical problem, the invention provides a tractor, which comprises the power system of the hybrid tractor in the technical scheme.
Additional aspects of the invention and its advantages will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a block diagram of a hybrid tractor power system provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an AMT device according to an embodiment of the present invention.
Detailed Description
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely a subset of the disclosed embodiments and not all embodiments. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without inventive step, are intended to be within the scope of the present disclosure.
It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the disclosure, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
FIG. 1 is a block diagram of a hybrid tractor power system provided by an embodiment of the present invention. As shown in fig. 1, the system includes: the system comprises an engine 1, a first generator 2, a second generator 3, a first driving motor 4, a second driving motor 5, an AMT device 6, a power output device 7, a rear axle 8, a rear wheel set 9, a high-voltage power distribution device 16 and a power battery 18.
The engine 1, the first generator 2 and the second generator 3 are sequentially connected in a transmission manner, the second generator 3 is connected with a first input shaft of the AMT device 6 in a transmission manner, and a first output shaft of the AMT device 6 is connected with the power output device 7 in a transmission manner; the first input shaft is in transmission connection with the first output shaft; the first driving motor 4 is in transmission connection with a second input shaft of the AMT device 6, the second driving motor 5 is in transmission connection with a third input shaft of the AMT device 6, a second output shaft of the AMT device 6 is in transmission connection with a rear axle 8, and the rear axle 8 is in transmission connection with a rear wheel set 9; the second input shaft and the third input shaft are in transmission connection with the second output shaft; the first input shaft, the second input shaft, the third input shaft, the first output shaft and the second output shaft are arranged in parallel; the first generator 2, the second generator 3, the first driving motor 4 and the second driving motor 5 are all electrically connected with a high-voltage distribution device 16, and the high-voltage distribution device 16 is electrically connected with a power battery 18.
In the embodiment of the invention, the two generators are coaxially arranged, the two driving motors are arranged in different shafts, the AMT device is provided with three input ports and two output ports, and a first input shaft of the AMT device is in transmission connection with a first output shaft, so that the driving power output of the engine is realized; the second input shaft and the third input shaft are in transmission connection with the second output shaft, so that the power coupling of the dual-motor driving running system is realized; the double-driving motor is adopted to provide the power of the whole tractor, the double-generator is used to provide electric energy, and the requirements of high horsepower and long endurance of the tractor can be met simultaneously; compared with a high-horsepower hybrid power system with a single motor, the system with double motors reduces the design and manufacture difficulty of the motors; the power system of the hybrid power tractor provided by the embodiment of the invention has a compact structure and is convenient for arrangement of the whole tractor; economic, environment-friendly, energy-saving and efficient.
Alternatively, in one embodiment, the first input shaft of the AMT device 6 is fixed with a first driving gear, the first output shaft is fixed with a first driven gear, and the first driving gear is meshed with the first driven gear. According to the embodiment of the invention, the first driving gear arranged on the first input shaft is meshed with the first driven gear arranged on the first output shaft, so that the transmission connection between the first input shaft and the first output shaft is realized, the rotating speed of the engine is transmitted to the power output device through the gear set formed by the first driving gear and the first driven gear, and the speed change function of power output is realized.
Optionally, in one embodiment, the second input shaft of the AMT device 6 is fixed with a second driving gear, the third input shaft is fixed with a third driving gear, and the second driving gear and the third driving gear are both engaged with the power coupling transmission device; the power coupling speed change device is in transmission connection with the second output shaft. The embodiment of the invention realizes the power coupling and the speed change adjustment of the dual-drive motor by connecting the second input shaft, the third input shaft and the second output shaft through the power coupling speed change device in a transmission way, and the AMT transmission part has high integration degree and compact structure and is convenient for the arrangement of the whole machine.
Optionally, in one embodiment, the power coupling transmission comprises a first intermediate shaft and a second intermediate shaft arranged parallel to each other with the second input shaft; a second driven gear, a first low-gear transmission gear and a first high-gear transmission gear are fixed on the first intermediate shaft, and the second driven gear is meshed with a second driving gear; a low-grade idler gear and a high-grade idler gear are fixed on the second output shaft and are connected through a synchronizer; the first low-gear transmission gear is meshed with the low-gear idle gear, and the first high-gear transmission gear is meshed with the high-gear idle gear; a third driven gear, a second low-gear transmission gear and a second high-gear transmission gear are fixed on the second intermediate shaft; the third driven gear is meshed with the third driving gear, the second low-gear transmission gear is meshed with the low-gear idler gear, and the second high-gear transmission gear is meshed with the high-gear idler gear.
In the above embodiment, the second input shaft drives the first intermediate shaft to rotate through the second driving gear and the second driven gear, the first intermediate shaft drives the first low-gear transmission gear and the first high-gear transmission gear on the shaft to transmit, the first low-gear transmission gear drives the low-gear idler gear to rotate, the first high-gear transmission gear drives the high-gear idler gear to rotate, if the synchronizer shifting fork is shifted to the low-gear idler gear side, the low-gear idler gear drives the second output shaft to rotate, and if the synchronizer shifting fork is shifted to the high-gear idler gear side, the high-gear idler gear drives the second output shaft to rotate; similarly, the third input shaft drives the output shaft to rotate according to the mode; the power coupling and speed change adjustment of the dual-drive motor are realized through the power coupling speed change device in the AMT device, and the AMT transmission part is high in integration degree, compact in structure and convenient to arrange in a whole machine.
The present invention is described in detail below with reference to a specific embodiment.
A hybrid tractor power system includes: the hybrid vehicle comprises an engine 1, a first generator 2, a second generator 3, a first driving motor 4, a second driving motor 5, an AMT device 6, a power output device 7, a rear axle 8, a rear wheel set 9, an engine controller 10, a first generator controller 11, a second generator controller 12, a vehicle control unit 13, a first driving motor controller 14, a second driving motor controller 15, a high-voltage distribution box 16, a battery management system 17 and a power battery 18.
The engine 1, the first generator 2 and the second generator 3 are sequentially in transmission connection, the second generator 3 is in transmission connection with a first input shaft of the AMT device 6, and a first output shaft of the AMT device 6 is in transmission connection with the power output device 7; the first input shaft is in transmission connection with the first output shaft; the first driving motor 4 is in transmission connection with a second input shaft of the AMT device 6, the second driving motor 5 is in transmission connection with a third input shaft of the AMT device 6, a second output shaft of the AMT device 6 is in transmission connection with a rear axle 8, and the rear axle 8 is in transmission connection with a rear wheel set 9. The second input shaft and the third input shaft are in transmission connection with the second output shaft; the first input shaft, the second input shaft, the third input shaft, the first output shaft and the second output shaft are arranged in parallel.
The first generator 2 is connected with a high-voltage power distribution device 16 through a first generator controller 11, the second generator 3 is connected with the high-voltage power distribution device 16 through a second generator controller 12, the first driving motor 4 is connected with the high-voltage power distribution device 16 through a first motor controller 14, the second driving motor 5 is connected with the high-voltage power distribution device 16 through a second driving motor controller 15, and the high-voltage power distribution device 16 is connected with a power battery 18.
The first generator controller 11, the second generator controller 12, the first driving motor controller 14 and the second driving motor controller 15 are all connected with the vehicle control unit 13; the vehicle control unit 13 is connected with the engine controller 10, the engine controller 10 is connected with the engine 1, the vehicle control unit 13 is connected with the battery management system 17, and the battery management system 17 is connected with the power battery 18.
The vehicle control unit 13 collects information of the first generator controller 11, the second generator controller 12, the first driving motor controller 14, the second driving motor controller 15, the engine controller 10 and the battery management system 17 to control the first generator 2 and the second generator 3 to generate power, and the power is directly supplied to the first driving motor 4 and the second driving motor 5 to work through the high-voltage distribution box 16. The power battery 18 mainly serves as an energy buffer.
Specifically, the AMT device 6 includes a first input shaft 6-1, a first output shaft 6-20, a second input shaft 6-4, a first intermediate shaft 6-7, a second output shaft 6-18, a second intermediate shaft 6-15, and a third input shaft 6-12, which are arranged in parallel with each other.
A first driving gear 6-2 is fixed on the first input shaft 6-1, a first driven gear 6-3 is fixed on the first output shaft 6-20, and the first driving gear 6-2 is meshed with the first driven gear 6-3. A second driving gear 6-5 is fixed on the second input shaft 6-4, a second driven gear 6-6, a first low-gear transmission gear 6-8 and a first high-gear transmission gear 6-19 are fixed on the first intermediate shaft 6-7, and the second driving gear 6-5 is meshed with the second driven gear 6-6. A low-grade idler gear 6-9 and a high-grade idler gear 6-17 are fixed on a second output shaft 6-18, and the low-grade idler gear 6-9 is connected with the high-grade idler gear 6-17 through a synchronizer 6-16; the first low-gear transmission gear 6-8 is meshed with the low-gear idler gear 6-9, and the first high-gear transmission gear 6-19 is meshed with the high-gear idler gear 6-17. A third driven gear 6-10, a second low-gear transmission gear 6-11 and a second high-gear transmission gear 6-14 are fixed on the second intermediate shaft; the second low-gear transmission gear 6-11 is meshed with the low-gear idler gear 6-9, and the second high-gear transmission gear 6-14 is meshed with the high-gear idler gear 6-17. The third input shaft 6-12 is fixed with a third driving gear 6-13, and the third driving gear 6-13 is meshed with a third driven gear 6-10.
When the power system of the hybrid tractor provided by the embodiment of the invention works, the engine 1 drives the first generator 2 and the second generator 3 to work, the first generator 2 and the second generator 3 supply electric energy to the first driving motor 4 and the second driving motor 5 through the high-voltage distribution box 16, and meanwhile, energy fluctuation is buffered through the power battery. The generator 1 powers the power output device 7 through the first input shaft and the first output shaft of the AMT device, and can realize a speed change function.
The first driving motor 4 drives the second input shaft of the AMT device 6 to rotate, the second driving motor 5 drives the third input shaft of the AMT device 6 to rotate, the second input shaft and the third input shaft realize power coupling and speed change functions through the first intermediate shaft, the second intermediate shaft and related gears, and output power to the rear axle through the second output shaft, and the rear axle drives the rear wheel set to rotate.
In the power system of the hybrid tractor provided by the embodiment of the invention, the power generated by the first driving motor 4 and the second driving motor 5 is coupled by the AMT device 6 and is transmitted to the wheels through the rear axle, so that the vehicle is driven to run; the power generated by the engine 1 can be used for generating electricity by the first generator 2 and the second generator 3 and can be transmitted to a power output device 7 through an AMT device 6; the two power transmission routes are independent in the AMT device 6. The hybrid power tractor power system provided by the embodiment of the invention has a compact structure, the AMT device has high integration level, and the whole machine is convenient to arrange; economic, environment-friendly, energy-saving and efficient.
The embodiment of the invention also provides a tractor, which comprises the power system of the hybrid tractor in the technical scheme.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (7)

1. A hybrid tractor power system, comprising: the system comprises an engine, a first generator, a second generator, a first driving motor, a second driving motor, an AMT device, a power output device, a rear axle, a rear wheel set, a high-voltage power distribution device and a power battery;
the engine, the first generator and the second generator are sequentially in transmission connection, the second generator is in transmission connection with the first input shaft of the AMT device, and the first output shaft of the AMT device is in transmission connection with the power output device; the first input shaft is in transmission connection with the first output shaft;
the first driving motor is in transmission connection with a second input shaft of the AMT device, the second driving motor is in transmission connection with a third input shaft of the AMT device, a second output shaft of the AMT device is in transmission connection with the rear axle, and the rear axle is in transmission connection with the rear wheel set; the second input shaft and the third input shaft are in transmission connection with the second output shaft; the first input shaft, the second input shaft, the third input shaft, the first output shaft and the second output shaft are arranged in parallel;
the first generator, the second generator, the first driving motor and the second driving motor are all electrically connected with the high-voltage distribution device, and the high-voltage distribution device is electrically connected with the power battery.
2. A hybrid tractor power system as defined in claim 1, wherein the first input shaft has a first drive gear affixed thereto, and the first output shaft has a first driven gear affixed thereto, the first drive gear being in meshing engagement with the first driven gear.
3. A hybrid tractor power system as defined in claim 1, wherein a second drive gear is fixed to the second input shaft, a third drive gear is fixed to the third input shaft, and the second drive gear and the third drive gear are both in mesh with a power coupling transmission; and the power coupling speed change device is in transmission connection with the second output shaft.
4. A hybrid tractor power system as defined in claim 3, wherein the power coupling transmission includes a first intermediate shaft and a second intermediate shaft disposed parallel to the second input shaft;
a second driven gear, a first low-gear transmission gear and a first high-gear transmission gear are fixed on the first intermediate shaft, and the second driven gear is meshed with the second driving gear;
a low-grade idler gear and a high-grade idler gear are fixed on the second output shaft, and the low-grade idler gear is connected with the high-grade idler gear through a synchronizer; the first low-gear transmission gear is meshed with the low-gear idler gear, and the first high-gear transmission gear is meshed with the high-gear idler gear;
a third driven gear, a second low-gear transmission gear and a second high-gear transmission gear are fixed on the second intermediate shaft; the third driven gear is meshed with the third driving gear, the second low-gear transmission gear is meshed with the low-gear idler gear, and the second high-gear transmission gear is meshed with the high-gear idler gear.
5. The hybrid tractor power system according to any one of claims 1 to 4, further comprising a vehicle control unit, and an engine controller, a first generator controller, a second generator controller, a first drive motor controller, and a second drive motor controller connected to the vehicle control unit;
the vehicle control unit controls the engine through the engine controller, controls the first generator through the first generator controller, controls the second generator through the second generator controller, controls the first driving motor through the first driving motor controller, and controls the second driving motor through the second driving motor controller.
6. The hybrid tractor power system of claim 5, further comprising a battery management system coupled to the vehicle control unit and the power battery.
7. A tractor comprising a hybrid tractor power system as claimed in any one of claims 1 to 6.
CN202210893315.8A 2022-07-27 2022-07-27 Hybrid tractor power system and tractor Pending CN115056643A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210893315.8A CN115056643A (en) 2022-07-27 2022-07-27 Hybrid tractor power system and tractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210893315.8A CN115056643A (en) 2022-07-27 2022-07-27 Hybrid tractor power system and tractor

Publications (1)

Publication Number Publication Date
CN115056643A true CN115056643A (en) 2022-09-16

Family

ID=83206062

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210893315.8A Pending CN115056643A (en) 2022-07-27 2022-07-27 Hybrid tractor power system and tractor

Country Status (1)

Country Link
CN (1) CN115056643A (en)

Similar Documents

Publication Publication Date Title
CN210526287U (en) Two grades of hybrid coupling systems and vehicle
CN111055672B (en) Two keep off hybrid power coupled system and vehicle
CN102815198A (en) HEV (Hybrid Electric Vehicle) driving system based on CVT (Continuously Variable Transmission)
CN104553732A (en) Transmission system of hybrid electric vehicle
CN108839550B (en) Hybrid power system
CN202896270U (en) Extend range type electric vehicle power system utilizing double-clutch two-gear transmission
CN114148157A (en) Dual-motor dual-clutch hybrid power gearbox
CN117799418A (en) Hybrid power tractor driving system and control method thereof
CN112224005A (en) Hybrid power transmission device
CN112277619A (en) Two grades of hybrid coupling systems and vehicle
CN217863691U (en) Hybrid tractor power system and tractor
CN113958668B (en) Three-mode hybrid power stepless speed change device for tracked vehicle
CN115056643A (en) Hybrid tractor power system and tractor
CN214929035U (en) Range-extending type electric automobile
CN115416473A (en) Multi-shaft driving hybrid power system and vehicle
CN213799232U (en) Dual-motor hybrid power system
US20220266672A1 (en) Hybrid single-speed automobile power system
CN101462482A (en) Novel double-motor series-parallel connection hybrid power assembly configuration
CN111114279B (en) Hybrid power driving system and vehicle
CN114953961A (en) Hybrid power coupling mechanism and vehicle
CN108674172B (en) Multimode hybrid power integrated driving device
CN109986958B (en) Power driving system and vehicle
CN113043825A (en) Three-motor power-split hybrid power system
CN112224010A (en) Driving system of single-motor hybrid power vehicle
CN207140769U (en) A kind of horizontal dual power source vehicle traction assembly

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information
CB02 Change of applicant information

Address after: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang

Applicant after: Weichai Lovol Intelligent Agricultural Technology Co.,Ltd.

Address before: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang

Applicant before: Weichai leiwo Heavy Industry Co.,Ltd.