CN113246705A - Alternating current-direct current composite driving system and hillside tractor - Google Patents

Alternating current-direct current composite driving system and hillside tractor Download PDF

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Publication number
CN113246705A
CN113246705A CN202110782474.6A CN202110782474A CN113246705A CN 113246705 A CN113246705 A CN 113246705A CN 202110782474 A CN202110782474 A CN 202110782474A CN 113246705 A CN113246705 A CN 113246705A
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CN
China
Prior art keywords
alternating current
tractor
motor
axle
direct current
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Pending
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CN202110782474.6A
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Chinese (zh)
Inventor
张幽彤
艾强
窦海石
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Beijing Institute of Technology BIT
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Beijing Institute of Technology BIT
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Priority to CN202110782474.6A priority Critical patent/CN113246705A/en
Publication of CN113246705A publication Critical patent/CN113246705A/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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
    • 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
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
    • 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
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • 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
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/20—DC electrical machines
    • 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
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/40—Electrical machine applications
    • B60L2220/42—Electrical machine applications with use of more than one motor
    • 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
    • Y02T10/64—Electric machine technologies 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
    • 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

Abstract

The invention provides an alternating current-direct current compound driving system and a hillside tractor, relates to the technical field of vehicle driving, and is designed for solving the problems that the existing tractor is low in torque and cannot be well adapted to running on hillsides and slopes. The alternating current-direct current compound driving system comprises an alternating current motor, a direct current motor, a compound controller and a power supply module for supplying power to the compound controller, wherein the direct current motor and the alternating current motor are both electrically connected with the compound controller, and a first motor shaft of the direct current motor and a second motor shaft of the alternating current motor are coaxially arranged and fixedly connected; the output end of the alternating current motor is connected with a transfer reduction box. The mountain tractor comprises the alternating current-direct current compound driving system. The invention can assist by the direct current motor, improve the torque of the tractor in the driving process, and enable the tractor to adapt to the driving on mountainous and sloping roads.

Description

Alternating current-direct current composite driving system and hillside tractor
Technical Field
The invention relates to the technical field of vehicle driving, in particular to an alternating current-direct current composite driving system and a mountain tractor.
Background
The tractor is a self-propelled power machine for drawing and driving working machine to implement various mobile operations, and is formed from engine, transmission, walking, steering, hydraulic suspension, power output, electric instrument and driving control and drawing system or device.
Generally, tractors are required to travel on hilly and sloping roads, which requires the tractors to have a greater capacity to cross-country. However, the existing tractor has low torque and cannot be well adapted to mountain and slope driving.
Disclosure of Invention
The invention aims to provide an alternating current-direct current compound driving system to solve the technical problems that an existing tractor is low in torque and cannot be well adapted to mountain land and slope road running.
The invention provides an alternating current-direct current compound driving system which comprises an alternating current motor, a direct current motor, a compound controller and a power module for supplying power to the compound controller, wherein the direct current motor and the alternating current motor are both electrically connected with the compound controller, and a first motor shaft of the direct current motor and a second motor shaft of the alternating current motor are coaxially arranged and fixedly connected; the output end of the alternating current motor is connected with a transfer reduction box.
Further, the transfer reduction gearbox is provided with a first output end, and the first output end is connected with the first wheel shaft through a first drive axle.
Further, the transfer gearbox is also provided with a second output end, and the second output end is connected with a second wheel shaft through a second drive axle.
Furthermore, the first wheel axle is a front axle of the vehicle, the second wheel axle is a rear axle of the vehicle, and the alternating current motor, the direct current motor, the power supply module and the transfer gearbox are all arranged close to the second wheel axle.
Further, the first wheel axle and/or the second wheel axle is provided with a brake.
Further, a transmission shaft is connected between the first output end and the first drive axle, and the transmission shaft comprises a first shaft section, a second shaft section and a clutch connected between the first shaft section and the second shaft section, wherein the first shaft section is connected with the first output end, and the second shaft section is connected with the first drive axle.
Further, the transfer gearbox is also provided with a PTO (Power Take Off) output end.
Further, the alternating current-direct current compound driving system further comprises a vehicle body attitude sensor, and the vehicle body attitude sensor is electrically connected with the integrated controller.
The AC-DC composite driving system has the advantages that:
the alternating current-direct current composite driving system mainly comprises an alternating current motor, a direct current motor, a comprehensive controller, a power supply module and a transfer reduction box, wherein the power supply module is used for supplying power to the comprehensive controller so as to ensure the normal work of the comprehensive controller; the direct current motor and the alternating current motor are both electrically connected with the integrated controller, the integrated controller controls the work of the direct current motor and the alternating current motor, and a first motor shaft of the direct current motor and a second motor shaft of the alternating current motor are coaxially arranged and fixedly connected; the transfer reduction box is connected with the output end of the alternating current motor.
Taking the application of the AC/DC compound driving system to a mountain tractor as an example, the working principle and the working process of the AC/DC compound driving system are explained. In the running process of the mountain tractor with the alternating current-direct current compound driving system on a normal road surface, the integrated controller controls the alternating current motor to work, and the efficient running of the mountain tractor on the normal road surface is realized by utilizing the characteristics of large power and high efficiency of the alternating current motor; when the hillside tractor needs to travel under mountain region and slope road conditions, can utilize integrated controller control direct current motor work, utilize direct current motor's first motor shaft with power transmission to alternating current motor's second motor shaft to increase alternating current motor's output torque, so that the hillside tractor can satisfy the travel demand under the complicated road conditions such as mountain region and slope.
This alternating current-direct current compound drive system utilizes alternating current motor to realize normal drive, satisfies the requirement of traveling of hillside tractor under general road conditions, utilizes direct current motor to realize the helping hand drive, increases hillside tractor's torque, satisfies the requirement of traveling of hillside tractor under complicated road conditions such as mountain region and slope way to make hillside tractor have the characteristics of adjusting along with the topography, in order to adapt to multiple road conditions well. Moreover, the alternating current-direct current composite driving system is driven by electric power, is silent and environment-friendly, can reduce noise in the driving process, and can reduce environmental pollution.
The second purpose of the invention is to provide a hillside tractor, which solves the technical problems that the existing tractor has lower torque and cannot be well adapted to running on hillsides and slopes.
The mountain tractor provided by the invention comprises the alternating current-direct current compound driving system.
Furthermore, the transfer gearbox of the alternating current-direct current compound driving system is provided with a third output end, the mountain tractor further comprises a hydraulic system and a cooling system, and a power element of the hydraulic system and a power element of the cooling system are in transmission connection with the third output end.
The mountain tractor has the beneficial effects that:
through set up above-mentioned alternating current-direct current composite drive system in hillside tractor for the hillside tractor can have the characteristics of adjusting along with the topography, thereby has increased the adaptability to complicated road conditions, and cross-country ability is strong, and work efficiency is high. In addition, the electric drive mode also makes the mountain tractor quiet and environment-friendly in the driving process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a partial structural plan view of a mountain tractor according to an embodiment of the present invention.
Description of reference numerals:
100-an alternating current motor; 200-a direct current motor; 300-a power supply module; 500-transfer gearbox; 700-a brake; 800-a transmission shaft;
410-ac motor controller; 420-dc motor controller;
510-a first output; 520-a second output; 530-PTO output;
610-a first drive axle; 620-second drive axle; 630-a first axle; 640-a second axle;
810-a first shaft section; 820-a second shaft section; 830-a clutch;
910-front wheels; 920-rear wheel.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 is a partial structural sectional view of the mountain tractor provided in the present embodiment. As shown in fig. 1, the present embodiment provides a hillside tractor, which includes an ac/dc hybrid drive system, specifically, the ac/dc hybrid drive system includes an ac motor 100, a dc motor 200, a hybrid controller, and a power module 300 for supplying power to the hybrid controller, wherein the dc motor 200 and the ac motor 100 are both electrically connected to the hybrid controller, and a first motor shaft of the dc motor 200 and a second motor shaft of the ac motor 100 are coaxially disposed and fixedly connected; the output end of the alternating current motor 100 is connected with a transfer gearbox 500.
In the running process of the mountain tractor on a normal road surface, the integrated controller controls the alternating current motor 100 to work, and the efficient running of the mountain tractor on the normal road surface is realized by utilizing the characteristics of large power and high efficiency of the alternating current motor 100; when the hillside tractor needs to travel under hillside and slope road conditions, can utilize integrated controller control direct current motor 200 work, utilize the first motor shaft of direct current motor 200 to transmit power to the second motor shaft of alternating current motor 100 to increase alternating current motor 100's output torque, so that the hillside tractor can satisfy the travel demand under complex road conditions such as mountain region and slope.
This alternating current-direct current compound drive system utilizes alternating current motor 100 to realize normal drive, satisfies the requirement of traveling of hillside tractor under general road conditions, utilizes direct current motor 200 to realize power-assisted drive, increases hillside tractor's torque, satisfies the requirement of traveling of hillside tractor under complicated road conditions such as mountain region and slope way to make hillside tractor have the characteristics of adjusting along with the topography, in order to adapt to multiple road conditions well. Moreover, the alternating current-direct current composite driving system is driven by electric power, is silent and environment-friendly, can reduce noise in the driving process, and can reduce environmental pollution.
Through set up above-mentioned alternating current-direct current composite drive system in hillside tractor for the hillside tractor can have the characteristics of adjusting along with the topography, thereby has increased the adaptability to complicated road conditions, and cross-country ability is strong, and work efficiency is high. In addition, the electric drive mode also makes the mountain tractor quiet and environment-friendly in the driving process.
Referring to fig. 1, in the present embodiment, the integrated controller may include an ac motor controller 410 and a dc motor controller 420, where the ac motor controller 410 is configured to control an operation process of the ac motor 100, and the dc motor controller 420 is configured to control an operation process of the dc motor 200.
Referring still to fig. 1, in the present embodiment, the transfer gearbox 500 has a first output end 510, wherein the first output end 510 is connected to a first axle 630 through a first drive axle 610. With this arrangement, the power output from the transfer gearbox 500 can be smoothly transmitted to the first axle 630, thereby driving the wheels mounted on the first axle 630.
Referring to fig. 1, in the present embodiment, the transfer gearbox 500 further has a second output end 520, wherein the second output end 520 is connected to the second axle 640 through a second drive axle 620. With this arrangement, the power output from the transfer gearbox 500 can be smoothly transmitted to the second axle 640, thereby driving the wheels mounted on the second axle 640.
Specifically, in this embodiment, the first axle 630 is a front axle of the hillside tractor, the second axle 640 is a rear axle of the hillside tractor, and the ac motor 100, the dc motor 200, the power module 300, and the transfer gearbox 500 are disposed near the second axle 640. The two ends of the first wheel shaft 630 are connected with front wheels 910, the two ends of the second wheel shaft 640 are connected with rear wheels 920, the alternating current motor 100 and the direct current motor 200 transmit driving force to the front wheels 910 through the first output end 510 of the transfer reduction gearbox 500, and transmit the driving force to the rear wheels 920 through the second output end 520 of the transfer reduction gearbox 500, so that the four-wheel-drive walking function of the mountain tractor is realized.
The rear form of arranging the alternating current motor 100, the direct current motor 200, the power supply module 300 and the transfer reduction gearbox 500 close to the rear shaft enables the mountain tractor to have good starting and climbing performance in the driving process, and can reduce the load of the front wheels 910, so that the steering is more light.
Referring to fig. 1, in the present embodiment, the first axle 630 is provided with a brake 700.
Through setting up stopper 700 at first shaft 630 for when needs brake the hillside tractor, front wheel 910 receives the braking effect, and the braking is reliable, and at this in-process, because the focus of hillside tractor leans on the back, makes the hillside tractor can keep relatively stable always, can not take place to topple.
In other embodiments, the brake 700 may also be provided on the second axle 640, or the brake 700 may be provided on both the first axle 630 and the second axle 640.
Referring to fig. 1, in the present embodiment, a transmission shaft 800 is connected between the first output end 510 and the first driving axle 610, and specifically, the transmission shaft 800 includes a first shaft section 810, a second shaft section 820 and a clutch 830 connected between the first shaft section 810 and the second shaft section 820, where the first shaft section 810 is connected with the first output end 510, and the second shaft section 820 is connected with the first driving axle 610.
By providing the transmission shaft 800 for connecting the first output 510 and the first transaxle 610 in a form mainly composed of the first shaft section 810, the clutch 830 and the second shaft section 820, the clutch 830 can be brought into a state of separating the first shaft section 810 from the second shaft section 820 when the mountain tractor is running under normal conditions (e.g., flat road, downhill), that is: the power transmission from the first output terminal 510 to the first drive axle 610 is disconnected so that the mountain tractor becomes a two-drive type driven only by the rear wheels 920 at this time. When the hillside tractor runs under a complex condition (such as hillside and slope), the clutch 830 may be in a state of combining the first shaft section 810 and the second shaft section 820, that is: power transmission from the first output 510 to the first drive axle 610 is resumed so that the mountain tractor now becomes a four-wheel drive type driven by both the front wheels 910 and the rear wheels 920.
By adopting the arrangement mode, the rapid switching of the mountain tractor between two-wheel drive and four-wheel drive can be realized, when heavy load working conditions such as climbing and the like are met, the four-wheel drive state can be switched, and meanwhile, the direct current motor 200 and the alternating current motor 100 work simultaneously, so that the torque of the mountain tractor in the running process is increased; when the vehicle runs on a flat road or runs on a downhill or other low-load working conditions, the clutch 830 can be disconnected to switch the mountain tractor to a two-drive state, and the rear wheel 920 is driven only by the alternating current motor 100 to achieve the purpose of running.
Continuing to refer to FIG. 1, in this embodiment, transfer gearbox 500 also has PTO output 530.
So set up for transfer reduction box 500 can be through PTO output 530 output power at the course of the work, thereby makes the rearmounted operation equipment of mountain tractor can obtain power through the PTO, has satisfied the power needs of rearmounted operation equipment.
Specifically, in this embodiment, the ac/dc hybrid drive system may further include a vehicle body attitude sensor (not shown in the figure), wherein the vehicle body attitude sensor is electrically connected to the integrated controller.
Through setting up automobile body attitude sensor for mountain tractor is at the in-process of traveling, can utilize automobile body attitude sensor to carry out real-time detection to current automobile body state, and with this detection signal transmission to integrated controller, by the current operational mode of integrated controller control mountain tractor.
Such as: when the vehicle body posture sensor detects that the mountain tractor is in a state that the vehicle head is facing upward, the vehicle body posture sensor detects that the mountain tractor is in a climbing road condition, and when the integrated controller receives the posture signal, the clutch 830 is controlled to be in a combined state, so that the mountain tractor is switched to a four-wheel drive mode to operate, meanwhile, the direct current motor 200 is enabled to work for assisting power, the output torque of the mountain tractor is increased, and smooth climbing of the mountain tractor is achieved; when the vehicle body attitude sensor detects that the hillside tractor is in the head and bends down, the vehicle body attitude sensor will detect that the hillside tractor is in the downhill road condition, and when the integrated controller receives the attitude signal, the clutch 830 will be controlled to be in the off-state, so that the hillside tractor switches to the two-drive mode operation, and meanwhile, the direct current motor 200 does not work, and only the alternating current motor 100 works, so that the high-power and high-efficiency running of the hillside tractor is ensured.
In this embodiment, the vehicle body attitude sensor can be installed on the frame of the mountain tractor.
In this embodiment, the ac/dc hybrid driving system may further include a load sensor, and the load sensor is electrically connected to the integrated controller. Utilize load sensor, can real-time detection mountain tractor load that the in-process received to make the synthesizer can in time switch according to the mode of traveling of current load to mountain tractor, go with the high efficiency of guaranteeing mountain tractor.
In addition, the transfer gearbox 500 of the alternating current-direct current compound driving system also has a third output end, and the mountain tractor can further comprise a hydraulic system and a cooling system, and specifically, a power element of the hydraulic system and a power element of the cooling system are in transmission connection with the third output end.
Through the arrangement, in the working process of the transfer gearbox 500, power can be output to the power element of the hydraulic system and the power element of the cooling system through the third output end, so that the normal operation of the hydraulic system and the cooling system of the mountain tractor is realized.
Wherein, hydraulic system can provide the power assisted steering for the hillside tractor, and cooling system can cool off AC motor 100 and DC motor 200.
It should be noted that, in this embodiment, the mountain tractor may adopt an independent suspension system, and thus the riding comfort of the mountain tractor may be ensured.
It should be further noted that, in this embodiment, the integrated controller integrates functions of power management, motor control, vehicle control, four-wheel drive control, steering brake control, and the like, wherein how to implement the above functions of the integrated controller is the prior art well known to those skilled in the art, and this embodiment does not improve this, and therefore, details are not described again.
This mountain tractor utilizes alternating current-direct current combined drive for it can satisfy the high-efficient demand of traveling under the multiple road conditions. In addition, the mountain tractor can also automatically control according to a vehicle body posture sensor, a load sensor, a steering wheel rotating angle, a braking signal and an accelerator signal, so that multifunctional coordinated control of the mountain tractor is realized.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An alternating current and direct current compound driving system is characterized by comprising an alternating current motor (100), a direct current motor (200), a comprehensive controller and a power module (300) for supplying power to the comprehensive controller, wherein the direct current motor (200) and the alternating current motor (100) are both electrically connected with the comprehensive controller, and a first motor shaft of the direct current motor (200) and a second motor shaft of the alternating current motor (100) are coaxially arranged and fixedly connected; the output end of the alternating current motor (100) is connected with a transfer gearbox (500).
2. The AC/DC compound drive system according to claim 1, wherein the transfer gearbox (500) has a first output (510), the first output (510) being connected to a first axle (630) via a first drive axle (610).
3. The AC/DC compound drive system according to claim 2, wherein the transfer gearbox (500) further has a second output (520), the second output (520) being connected to a second axle (640) by a second drive axle (620).
4. The AC-DC hybrid drive system according to claim 3, wherein said first axle (630) is a front axle of a vehicle, said second axle (640) is a rear axle of a vehicle, and said AC motor (100), said DC motor (200), said power module (300), and said transfer gearbox (500) are all disposed proximate to said second axle (640).
5. AC/DC compound drive system according to claim 4, characterised in that the first axle (630) and/or the second axle (640) is/are provided with a brake (700).
6. The AC-DC hybrid drive system according to claim 2, wherein a transmission shaft (800) is connected between the first output end (510) and the first drive axle (610), the transmission shaft (800) comprising a first shaft segment (810), a second shaft segment (820) and a clutch (830) connected between the first shaft segment (810) and the second shaft segment (820), wherein the first shaft segment (810) is connected with the first output end (510) and the second shaft segment (820) is connected with the first drive axle (610).
7. The AC/DC compound drive system according to claim 1, wherein the transfer gearbox (500) further has a PTO output (530).
8. The AC-DC hybrid drive system according to claim 1, further comprising a body attitude sensor electrically connected to said integrated controller.
9. A hillside tractor comprising the compound ac/dc drive system of any one of claims 1 to 8.
10. The tractor according to claim 9, characterized in that the transfer gearbox (500) of the compound ac/dc drive system has a third output, the hillside tractor further comprising a hydraulic system and a cooling system, the power elements of the hydraulic system and the cooling system being in driving connection with the third output.
CN202110782474.6A 2021-07-12 2021-07-12 Alternating current-direct current composite driving system and hillside tractor Pending CN113246705A (en)

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CN107792208A (en) * 2016-09-01 2018-03-13 西北农林科技大学 A kind of micro-scale double-power electric tractor
CN112368166A (en) * 2018-06-20 2021-02-12 舍弗勒技术股份两合公司 Drive unit and drive assembly for a drive train of an electrically driven motor vehicle

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Publication number Priority date Publication date Assignee Title
US20130119665A1 (en) * 2011-11-10 2013-05-16 George Edmond Berbari Energy recovery drive system and vehicle with energy recovery drive system
CN103707748A (en) * 2012-09-28 2014-04-09 通用电气公司 Power transmission system and driving system
CN103144539A (en) * 2013-03-14 2013-06-12 广西澜光科技有限公司 Four-wheel-drive bow-type steering multipurpose tractor
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CN103723037A (en) * 2013-12-18 2014-04-16 刘光兵 Articulated tractor head and tractor with same
CN107792208A (en) * 2016-09-01 2018-03-13 西北农林科技大学 A kind of micro-scale double-power electric tractor
CN112368166A (en) * 2018-06-20 2021-02-12 舍弗勒技术股份两合公司 Drive unit and drive assembly for a drive train of an electrically driven motor vehicle

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