CN202593251U - Electric tractor - Google Patents
Electric tractor Download PDFInfo
- Publication number
- CN202593251U CN202593251U CN2012201780115U CN201220178011U CN202593251U CN 202593251 U CN202593251 U CN 202593251U CN 2012201780115 U CN2012201780115 U CN 2012201780115U CN 201220178011 U CN201220178011 U CN 201220178011U CN 202593251 U CN202593251 U CN 202593251U
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- motor
- battery
- electric machine
- shaft
- machine controller
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- 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
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
An electric tractor comprises a battery group (10), an energy management system (12), a main controller (8), a motor controller I (4), a motor I (3), a speed reducer I (2), a power output shaft (1), a motor controller II (7), a motor II (5) and a speed reducer II (6). The main controller is used to receive motion signals and working signals of the whole electric tractor and send control instructions to the motor controller I and the motor controller II, thereby adjusting the motor I and the motor II to correspondingly start up, accelerate, brake and the like. Output torque of the motor I drives the power output shaft and wheels to move through the speed reducer I, output torque of the motor II drives the power output shaft and the wheels to move through the speed reducer II, and therefore independent control of multiple motors is achieved. According to the electric tractor, electric braking is utilized, energy can be recovered when the electric motor turns, goes down a slope and brakes, and therefore not only can various demands for agricultural operations such as rotary tillage, plough and transportation be met, but also the electric tractor has the advantages of being light in weight, flexible, quite high in energy conversion rate, free from waste gas emission and the like.
Description
Technical field
The utility model belongs to agricultural mechanical field, relates to a kind of battery-powered tractor, especially relates to the battery-powered tractor that a kind of many motors are independently controlled.
Background technology
Minimizing significantly along with oil reserve; The price of oil resources is also soaring gradually; Meanwhile, exhaust emissions, environmental pollution also increasingly sharpen, and green-house effect and problem of energy crisis receive the attention of national governments gradually; It is strict gradually to pollute rules, and people have higher requirement to the feature of environmental protection of trac..Traditional trac. all is to be fuel with liquid gasoline or diesel oil usually, internal combustion engine drive, and its optional horsepower range is bigger, but energy conversion efficiency is low, noise big and the environmental pollution important disadvantages is difficult to thorough change.In addition, most of trac.s in braking, turn to and the energy major part that produced during the power take-off shaft reduction of speed all becomes heat energy and loss, system effectiveness is low.Along with the continuous appearance of various high performance battery and high efficiency electric, the development and the popularization of battery-powered tractor become possibility.Given this, the battery-powered tractor independently controlled of the recyclable utilization of a kind of braking energy of necessary release, many motors.With respect to traditional combustion engine trac., battery-powered tractor also has advantages such as non-exhaust emission, energy conversion rate height and flexible operation when satisfying the demand of different farmland operations such as rotary tillage, ploughing and transportation.
Summary of the invention
To the shortcomings and deficiencies that exist in the prior art; The utility model purpose is to provide a kind of battery-powered tractor; It adopts electric braking; Equipment comprises power take-off shaft, draw gear and suspension, and battery-powered tractor is given agricultural machinery and implement through equipment with transmission of power, cooperatively interacts with agricultural machinery and implement and accomplishes corresponding operation.Compare with traditional trac., the utility model battery-powered tractor complete vehicle quality is relatively light, noise is little, pollution improves, and can satisfy the demand of different farmland operations such as rotary tillage, ploughing and transportation.
For realizing above-mentioned purpose, the utility model battery-powered tractor comprises: battery pack, battery bracket, hood, energy management system, master controller, rear drive sprocket, steering front wheel, axle drive shaft, electric machine controller I, motor I, retarder I, power take-off shaft, electric machine controller II, motor II and retarder II; The left rear side of said vehicle frame and right lateral side respectively are equipped with a rear drive sprocket, and front left side and forward right side respectively are equipped with a steering front wheel; Said axle drive shaft, electric machine controller II, motor II and retarder II all have two, correspond respectively to two rear drive sprockets; Said battery pack, electric machine controller I, motor I are electrically connected in proper order, and the output shaft of motor I is concentric with the input shaft of retarder I and captive joint, and retarder I output shaft is concentric with power take-off shaft and captive joint; Said battery pack, electric machine controller II, motor II are electrically connected in proper order, and the output shaft of motor II is concentric with the input shaft of retarder II and captive joint, and the output shaft of retarder II is connected with rear drive sprocket through axle drive shaft; Said battery pack can be battery pack, also can be fuel cells or solar battery group etc.; Said power take-off shaft can be arranged in front, back or the side of trac., with the supporting needs of the power that adapts to different agricultural machinery and implement.
In above-mentioned battery-powered tractor, said battery pack is positioned at hood, is installed on the vehicle frame through battery bracket, and is connected with the power source bus of battery-powered tractor.
In above-mentioned battery-powered tractor, said energy management system is installed on the vehicle frame, is electrically connected with charger and battery pack.
In above-mentioned battery-powered tractor, said master controller is electrically connected with electric machine controller I, electric machine controller II and energy management system respectively.
In above-mentioned battery-powered tractor, tachogen II is housed on the said axle drive shaft, tachogen I is housed on the said power take-off shaft, accelerator pedal sensor and brake pedal sensor are installed on the said vehicle frame, each sensor is electrically connected with master controller respectively.
In above-mentioned battery-powered tractor, under the bearing circle servo steering system is housed, car load also is equipped with draw gear and suspension in addition.
The principle of work of the utility model battery-powered tractor:
Master controller receives car load motor message and working signal; Send the control corresponding instruction to each electric machine controller, each electric machine controller is controlled each rotating speed of motor, torque and hand of rotation according to control command, each rotating speed of motor signal and the current feedback signal of master controller; Electric machine controller I is through controlling the control of realization to power take-off shaft power to rotating speed, torque and the hand of rotation of motor I; Electric machine controller II is to the controls such as rotating speed, torque and hand of rotation of motor II, and the power that motor II transmits passes to the both sides wheel through axle drive shaft after retarder II amplifies; Charger converts alternating current the direct current (DC) of relevant voltage into, and controls charging current on request, accomplishes the charging to battery pack; Energy management system is electrically connected with battery pack, in the car load driving process, carries out the energy and distributes, and coordinates the work capacity of each several part; Carry out electrification feedback with the master controller cooperation, limited energy source is utilized, control charging with charger; In addition, energy management system can also be monitored the battery pack working parameter in real time, guarantees the battery pack safe operation; Prevent overcharging and over discharge, prolong the service life of battery pack; Motor I and motor II are brought into play its main motor function when normal operation; Electric energy is converted into mechanical energy; When battery-powered tractor turns to, when braking or descending; Master controller cooperates energy management system to carry out electrification feedback, passes to electric machine controller I and electric machine controller II with feeding back relevant information with electric weight, and electric machine controller I control motor I, electric machine controller II control motor II operate in generating state; The part mechanical energy of car load is fed back to battery pack, thereby battery pack is carried out reverse charging; Servo steering system exports the rotating torque of corresponding size and Orientation according to data such as the torque of bearing circle and rotation directions and the operating torque of chaufeur overcomes steering resisting torque together, thereby realizes turning to of car load.
Compared with prior art, the utility model advantage is:
1) the utility model adopts going of motor II control rear drive sprocket; There is not the mechanical drive link between two rear drive sprockets; The power of motor I control power take-off shaft promptly adopts three independent motors of controlling drive wheels and power take-off shaft respectively, and each motor is by corresponding motor controller controls; Mutually noninterfere between each control, different demands such as the high pulling torque of can realizing running at high speed output or the little moment of torsion output of low speed driving.
2) the utility model has been cancelled traditional combustion engine, adopts battery pack as propulsion source, can realize ultra-low emission, reduces environment damage.
3) the utility model is accomplished the control to propulsive effort and outputting power through motor, compares with adopting ICE-powered tradition trac., no matter is to quicken or slow down, and the torque response of motor is all very fast and obtain exact value easily.
4) the utility model adopts electric braking, and the energy that motor I produces when the energy that motor II produces in the time of can be with straight or descending, the energy that inboard motor II braking produces when turning to and power take-off shaft reduction of speed carries out electrification feedback, has improved energy utilization ratio.
5) compare with traditional trac., the utility model has been cancelled traditional power-transfer clutch, change-speed box and diff etc., and driving system obtains simplifying, and complete vehicle quality alleviates, and driving efficiency is improved, and vibration and noise improves.
Description of drawings
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the partial enlarged drawing of the utility model motor-driven part.
Fig. 3 is the three-dimensional structure scheme drawing of Fig. 1.
Fig. 4 is the control principle figure of major part.
Among the figure, 1-power take-off shaft, 2-retarder I, 3-motor I, 4-electric machine controller I, 5-motor II; 6-retarder II, 7-electric machine controller II, 8-master controller, 9-charger, 10-battery pack, 11-battery bracket; The 12-energy management system, 13-servo steering system, 14-steering front wheel, 15-rear drive sprocket, 16-vehicle frame, 17-hood; The 18-axle drive shaft, 19-accelerator pedal sensor, 20-brake pedal sensor, 21-tachogen II, 22-tachogen I.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.
The battery-powered tractor of the utility model comprises: battery pack (10), battery bracket (11), hood (17), energy management system (12), master controller (8), rear drive sprocket (15), steering front wheel (14), electric machine controller I (4), motor I (3), retarder I (2), power take-off shaft (1), electric machine controller II (7), motor II (5) and retarder II (6).Said motor I (3) is connected on the feed circuit behind electric machine controller I (4), and motor II (5) is connected on the feed circuit behind electric machine controller II (7).
Tachogen II (21), tachogen I (22), accelerator pedal sensor (19) and brake pedal sensor (20) are installed on the battery-powered tractor; Master controller (8) is according to each sensor signal that receives; Some relevant informations (like the speed of a motor vehicle) of car load are shown on combination instrument (not shown); Input value and conditions such as system's current state and car load operating mode through sensor calculate suitable motor torque values; Send to each electric machine controller, and then the moment of torsion of each motor is controlled.
Battery pack (10) is used for that each equipment provides power supply on battery-powered tractor; Electric machine controller II (7) and electric machine controller I (4) give motor II (5) and motor I (3) with the electrical energy transfer of battery pack (10), simultaneously also to its start, control such as rotating; Retarder II (6) realize to slow down to increase and turns round, and is delivered to axle drive shaft (18) and rear drive sprocket (15) after the power of motor II (5) is amplified, thus the advancing, retreat and braking etc. of realization car load.For example when carrying out reverse travel, electric machine controller II (7) controls motor II (5) antiport, and after retarder II (6) and axle drive shaft (18) transferring power, the both sides wheel also is in the inverted running state accordingly, realizes the requirement of reverse travel.Same retarder (2) slows down to increase and turns round, and is delivered to power take-off shaft (1) after the power amplification with motor I (3), satisfies the demand of different dynamic output size.Master controller (8) can be controlled the way of output of power, and when the needs outputting rotary power, master controller (8) sends corresponding instruction to electric machine controller I (4), and electric machine controller I (4) controls motor I (3), makes it operate in mode of operation; Otherwise control it and be in halted state.
Energy management system (12) is controlled the charging of battery pack (10) with charger (9), and the electric energy of external power supply passes to battery pack (10) through charger (9), energy management system (12) to battery pack (10) overcharge and over discharge plays a protective role.In addition; Energy management system (12) carries out the energy and distributes in the car load operation; Coordinate the energy management of each funtion part work, turn at battery-powered tractor, energy management system (12) cooperates with master controller (8) and controls electrification feedback when braking or downhill running.
Motor I (3) and motor II (5) are brought into play motor function when the car load cruising, electric energy is converted into mechanical energy, and turn to, performance generator performance when braking or downhill running, part mechanical energy is converted into electric energy.For example when car load is in braking or downhill running, straight electric braking; Braking degree information and the definite speed information of tachogen II (21) that master controller is confirmed according to the brake pedal sensor (20) that receives; Cooperate car load operating mode and the detected battery voltage value of energy management system (12); Calculate the size of the electric weight that need feed back to battery pack; The braking torque information of the pairing motor II of this information (5) is passed to electric machine controller II (7); Electric machine controller II (7) regulates the torque of motor II (5), and control motor II (5) operates in generating state, and the part mechanical energy of car load is converted into electric energy and then accomplishes the reverse charging to battery pack (10); Equally, when power take-off shaft (1) rotating speed reduced, motor I (3) operated in generating state, utilized the inertia generating of power take-off implement, and electric energy is fed back to battery pack (10) through electric machine controller I (4); When battery-powered tractor is turned to by straight; Inboard motor II produces lock torque; The motor II in the outside then produces drive torque, and the braking energy of inboard motor II is fed back to the motor II in the outside, increases the electric energy loss that causes because of driving torque to remedy it.
Servo steering system (13) is installed on bearing circle (not shown) below; Can export the moment of corresponding size and Orientation according to the data such as torque and rotation direction that chaufeur acts on bearing circle; Overcome steering resisting torque together with the operating torque of chaufeur, thereby realize turning to of car load.
With the working process of specific embodiment explanation the utility model, certainly, the utility model is not limited in this embodiment below:
Embodiment: when the battery-powered tractor straight need be given it the gun; The chaufeur bend the throttle; Accelerator pedal sensor (19) passes to master controller (8) with this ARC Acceleration Signal, and master controller (8) confirms that according to the size of ARC Acceleration Signal rear drive sprocket (15) quickens the size of required electric weight, and master controller (8) is controlled battery pack (10) discharge with energy management system (12) cooperation simultaneously; The electric energy of battery pack (10) is delivered to motor II (5) through electric machine controller II (7); Electric machine controller II (7) regulates the torque or the rotating speed of motor II (5), and motor II (5) realizes the electric energy conversion, the electric energy that transmits is converted into the mechanical energy of motor II (5) output shaft; And then mechanical energy is transferred to retarder II (6); Retarder II (6) realizes slowing down to increase turning round, and power is amplified after axle drive shaft (18) passes to rear drive sprocket (15), realizes giving it the gun of car load.
According to above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification sheets, any modification of being done within all spirit and principles at the utility model, is equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (6)
1. a battery-powered tractor comprises: battery pack (10), battery bracket (11), hood (17), vehicle frame (16), energy management system (12), master controller (8), rear drive sprocket (15), steering front wheel (14), axle drive shaft (18), electric machine controller I (4), motor I (3), retarder I (2), power take-off shaft (1), electric machine controller II (7), motor II (5) and retarder II (6); The left rear side of said vehicle frame (16) and right lateral side respectively are equipped with a rear drive sprocket (15), and front left side and forward right side respectively are equipped with a steering front wheel (14); Said axle drive shaft (18), electric machine controller II (7), motor II (5) and retarder II (6) all have two, correspond respectively to two rear drive sprockets (15); Said battery pack (10), electric machine controller I (4), motor I (3) order are electrically connected, and the output shaft of motor I (3) is concentric with the input shaft of retarder I (2) and captive joint, and retarder I (2) output shaft is concentric with power take-off shaft (1) and captive joint; Said battery pack (10), electric machine controller II (7), motor II (5) order are electrically connected, and the output shaft of motor II (5) is concentric with the input shaft of retarder II (6) and captive joint, and the output shaft of retarder II (6) passes through axle drive shaft (18) and is connected with rear drive sprocket (15).
2. battery-powered tractor according to claim 1 is characterized in that, said battery pack (10) is positioned at hood (17), is installed on the vehicle frame (16) through battery bracket (11), and is connected with the power source bus of battery-powered tractor.
3. battery-powered tractor according to claim 1 is characterized in that, said energy management system (12) is installed on the vehicle frame (16), is electrically connected with charger (9) and battery pack (10) respectively.
4. battery-powered tractor according to claim 1 is characterized in that, said master controller (8) is electrically connected with electric machine controller II (7), electric machine controller I (3) and energy management system (12) respectively.
5. battery-powered tractor according to claim 1; It is characterized in that; Tachogen II (21) is housed on the said axle drive shaft (18); Tachogen I (22) is housed on the said power take-off shaft (1), accelerator pedal sensor (19) and brake pedal sensor (20) are installed on the said vehicle frame (16), each sensor is electrically connected with master controller (8) respectively.
6. battery-powered tractor according to claim 1 is characterized in that, servo steering system (13) is housed under the bearing circle, and car load also is equipped with draw gear and suspension in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201780115U CN202593251U (en) | 2012-04-18 | 2012-04-18 | Electric tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201780115U CN202593251U (en) | 2012-04-18 | 2012-04-18 | Electric tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202593251U true CN202593251U (en) | 2012-12-12 |
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ID=47310833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201780115U Expired - Fee Related CN202593251U (en) | 2012-04-18 | 2012-04-18 | Electric tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202593251U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649394A (en) * | 2012-04-18 | 2012-08-29 | 西北农林科技大学 | Electric tractor |
| CN103057407A (en) * | 2013-01-29 | 2013-04-24 | 柳州市医疗设备厂 | Electric automobile |
| CN106608310A (en) * | 2015-10-22 | 2017-05-03 | 沈阳新松机器人自动化股份有限公司 | Four-wheel trolley chassis structure with suspension |
| CN107344506A (en) * | 2016-05-05 | 2017-11-14 | 东风农业装备（襄阳）有限公司 | The power supply method of agricultural machinery dynamical system and agricultural machinery |
| CN107512165A (en) * | 2017-08-24 | 2017-12-26 | 河南科技大学 | A kind of intelligent electric tractor and its layout method on chassis |
-
2012
- 2012-04-18 CN CN2012201780115U patent/CN202593251U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649394A (en) * | 2012-04-18 | 2012-08-29 | 西北农林科技大学 | Electric tractor |
| CN103057407A (en) * | 2013-01-29 | 2013-04-24 | 柳州市医疗设备厂 | Electric automobile |
| CN106608310A (en) * | 2015-10-22 | 2017-05-03 | 沈阳新松机器人自动化股份有限公司 | Four-wheel trolley chassis structure with suspension |
| CN107344506A (en) * | 2016-05-05 | 2017-11-14 | 东风农业装备（襄阳）有限公司 | The power supply method of agricultural machinery dynamical system and agricultural machinery |
| CN107512165A (en) * | 2017-08-24 | 2017-12-26 | 河南科技大学 | A kind of intelligent electric tractor and its layout method on chassis |
| CN107512165B (en) * | 2017-08-24 | 2020-01-31 | 河南科技大学 | intelligent electric tractor and layout method of chassis thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20130418 |