CN102862476A - Twin-motor alternating-current driving system for electric fork-lift truck - Google Patents
Twin-motor alternating-current driving system for electric fork-lift truck Download PDFInfo
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- CN102862476A CN102862476A CN2012103993873A CN201210399387A CN102862476A CN 102862476 A CN102862476 A CN 102862476A CN 2012103993873 A CN2012103993873 A CN 2012103993873A CN 201210399387 A CN201210399387 A CN 201210399387A CN 102862476 A CN102862476 A CN 102862476A
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- motor
- drive motor
- electric machine
- machine controller
- driving system
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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
- Y02T10/64—Electric machine technologies in electromobility
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Electric Propulsion And Braking For Vehicles (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses a twin-motor alternating-current driving system for an electric fork-lift truck. The driving system comprises a main controller and an electric differential. The main controller collects action signals from an angular displacement sensor, an accelerator pedal, an electronic brake pedal and the like and sends the signals to the electric differential after comprehensive treatment. The main controller comprises a first motor controller and a second motor controller, and the first motor controller and the second motor controller control a first drive motor and a second drive motor independently and respectively, so that the fork-lift truck achieves a reserved speed difference during steering. The twin-motor alternating-current driving system has the advantages of being small in size, light in weight, simple in structure and convenient to mount, enabling the steering of the fork-lift truck to be flexible, and having flexible and efficient mechanical driving characteristics.
Description
Technical field
The present invention relates to a kind of automotive power, be specifically related to a kind of electri forklift double-motor AC Driving System.
Background technology
What electri forklift generally adopted all is single motor driven systems, it mainly comprises an electric machine controller, a drive motor and a mechanical differential gear box, the output of motor controller controls drive motor, mechanical differential gear box with the power distribution of motor to each drive wheel.Owing to only using a drive motor, the power of this drive motor is inevitable larger, and this causes the volume of whole system larger.The use of mechanical differential gear box has also further increased the volume and weight of system, makes system architecture complicated, and inconvenience is installed.Mechanical differential gear box has minimal effect to vehicle handling, when abominable road conditions can not for vehicle by effective help is provided.
Summary of the invention
Purpose of the present invention is namely to overcome that existing drive system volume is large, and weight is large, and complex structure is installed inconvenience and the not high shortcoming of in-use performance, and a kind of electri forklift double-motor AC Driving System is provided.
Purpose of the present invention is achieved through the following technical solutions:
Electri forklift double-motor AC Driving System, it comprises master controller, and the acceleration pedal, electronic brake pedal and the bearing circle that are connected with master controller by communication line, described electri forklift also comprises with the double-motor AC Driving System:
E-Diff, described E-Diff is connected by communication line with described master controller;
The first electric machine controller and the second electric machine controller, described the first electric machine controller be connected the second electric machine controller and be connected with described E-Diff by communication line respectively;
The first drive motor and the second drive motor, described the first drive motor and described the first electric machine controller are electrically connected, and described the second drive motor and described the second electric machine controller are electrically connected;
The first retarder and the second retarder, the input shaft of described the first retarder is connected with the output shaft of described the first drive motor, and the input shaft of described the second retarder is connected with the output shaft of described the second drive motor.
The first wheel and the second wheel, described the first wheel is connected with the output shaft of described the first retarder, and described the second wheel is connected with the output shaft of described the second retarder.
Further, described drive system also comprises driving battery and cell managing device, described driving battery and described master controller are electrically connected, described driving battery is connected with described cell managing device through communication line, and described cell managing device is connected with described master controller by communication line.
Further, described drive system also comprises primary importance sensor and second place sensor, described primary importance sensor setting is in described the first drive motor, described second place sensor setting in described the second drive motor, described primary importance sensor be connected second place sensor respectively by communication line and described the first electric machine controller be connected the second electric machine controller and be connected.
Further, described drive system also comprises angular-motion transducer, and described angular-motion transducer is arranged in the bearing circle, and described angular-motion transducer is connected with described master controller by communication line.
Advantage of the present invention and beneficial effect are:
1. two drive motor and drive wheel of difference individual drive are set, this is so that the power of single drive motor is less, its volume also reduces thereupon, and the cumulative volume of two drive motor also is less than the single drive motor that can export same propulsive effort, thereby reduced volume of the present invention, so that the present invention is convenient to arrange and install;
2. employing E-Diff because the volume of E-Diff is much smaller than mechanical differential gear box, thereby has further reduced volume of the present invention;
3. by electronic control units such as E-Diffs, according to each power of motor of the demand of driving dynamic assignment, so that turning to of fork truck is sensitiveer, has flexible and efficient mechanical ride characteristic.
Description of drawings
In order to be illustrated more clearly in embodiments of the invention, the below will make simple explanation to the required accompanying drawing of using in the description embodiment of the invention.Apparent, the accompanying drawing in the following describes only is some embodiment that put down in writing among the present invention, to those skilled in the art, in the situation that do not pay creative work, can also according to following accompanying drawing, obtain other accompanying drawing.
Fig. 1 is the structured flowchart of the embodiment of the invention;
Fig. 2 is the principle of work schematic diagram of the embodiment of the invention;
Wherein, the corresponding parts name of Reference numeral is called:
1-the first wheel, 2-the second wheel, 3-the 3rd wheel, 4-the 4th wheel, 5-chassis.
The specific embodiment
In order to make those skilled in the art understand better the present invention, below in conjunction with the accompanying drawing in the embodiment of the invention technical scheme in the embodiment of the invention is carried out clear, complete description.Apparent, embodiment described below only is the part in the embodiment of the invention, rather than all.Based on the embodiment of the present invention record, those skilled in the art are not in the situation that pay other all embodiment that creative work obtains, all in the scope of protection of the invention.
Embodiment:
As shown in Figure 1, electri forklift double-motor AC Driving System, it comprises master controller, and the acceleration pedal, electronic brake pedal and the bearing circle that are connected with master controller by communication line, master controller is from gathering actuating signal with angular-motion transducer, acceleration pedal, electronic brake pedal etc., and above-mentioned electri forklift also comprises with the double-motor AC Driving System:
E-Diff, above-mentioned E-Diff is connected by communication line with above-mentioned master controller;
The first electric machine controller and the second electric machine controller, above-mentioned the first electric machine controller be connected the second electric machine controller and be connected with above-mentioned E-Diff by communication line respectively;
The first drive motor and the second drive motor, above-mentioned the first drive motor and above-mentioned the first electric machine controller are electrically connected, and above-mentioned the second drive motor and above-mentioned the second electric machine controller are electrically connected;
The first retarder and the second retarder, the input shaft of above-mentioned the first retarder is connected with the output shaft of above-mentioned the first drive motor, and the input shaft of above-mentioned the second retarder is connected with the output shaft of above-mentioned the second drive motor.
The first wheel and the second wheel, above-mentioned the first wheel is connected with the output shaft of above-mentioned the first retarder, and above-mentioned the second wheel is connected with the output shaft of above-mentioned the second retarder.
E-Diff is used for receiving the signal of main control unit, and sends control signal according to the signal that obtains to the first electric machine controller and the second electric machine controller.The respectively independent output of controlling the first drive motor and the second drive motor of signal that the first electric machine controller and the second electric machine controller send according to E-Diff.
The present embodiment also comprises driving battery and cell managing device, drives battery and master controller and is electrically connected, and is connected with cell managing device through communication line simultaneously, and cell managing device is connected with master controller by communication line.This driving battery is used to the whole system power supply, and cell managing device is used for the mode of operation that drives battery with Real Time Monitoring that discharges and recharges that management drives battery, prevents from overcharging or crossing the situation of putting and occurs.
The present embodiment also comprises primary importance sensor and second place sensor, the primary importance sensor setting is in the first drive motor, second place sensor setting in the second drive motor, the primary importance sensor be connected with second place sensor by communication line and the first electric machine controller be connected electric machine controller and be connected.Primary importance sensor and second place sensor are respectively applied to gather the data such as rotating speed of the first drive motor and the second drive motor, and with real-time data transmission to the first electric machine controller and the second electric machine controller that collect, the first electric machine controller and the second electric machine controller are adjusted respectively the working condition of the first drive motor and the second drive motor according to the data that obtain.
The present embodiment also comprises angular-motion transducer, and angular-motion transducer is arranged in the bearing circle, and is connected with master controller by communication line.This angular-motion transducer is used for judging steering angle.
As shown in Figure 2, the first wheel 1, the second wheel 2, the 3rd wheel 3, the 4th wheel 4 and chassis 5 have formed the traveling section of fork truck, and the first wheel 1 and the second wheel 2 are drive wheel, and the principle of work of the present embodiment is as follows:
Bearing circle rotates to an angle left, and the first wheel 1 and the second wheel 2 namely are offset same angle left.Angular-motion transducer is sent to master controller with the angle signal that collects, after processing, main control unit is sent to E-Diff, E-Diff draws the speed discrepancy of the first wheel 1 and the second wheel 2 through computing, and tach signal is sent to the first electric machine controller and the second electric machine controller, the first motor controller controls the first drive motor output speed reduces, the second motor controller controls the second drive motor output speed is constant, keeps invariable after reaching required speed discrepancy.Then fork truck is realized turnon left.Turn and finish the rear positive dirction dish that returns, the first wheel 1 and the second wheel 2 just are being offset back to the right, in this process, the second motor controller controls the second drive motor output speed is constant, the first motor controller controls the first drive motor output speed improves until identical with the second drive motor output speed, and this moment, fork truck was kept straight on.
Bend to right such as fork truck, the rotation speed change situation of the first wheel 1 and the second wheel 2 is opposite with above-mentioned situation of turning left.
As above above-mentioned, just can realize preferably the present invention.
Claims (4)
1. electri forklift double-motor AC Driving System, it comprises master controller, and by acceleration pedal, electronic brake pedal and bearing circle that communication line is connected with master controller, it is characterized in that, described electri forklift also comprises with the double-motor AC Driving System:
E-Diff, described E-Diff is connected by communication line with described master controller;
The first electric machine controller and the second electric machine controller, described the first electric machine controller be connected the second electric machine controller and be connected with described E-Diff by communication line respectively;
The first drive motor and the second drive motor, described the first drive motor and described the first electric machine controller are electrically connected, and described the second drive motor and described the second electric machine controller are electrically connected;
The first retarder and the second retarder, the input shaft of described the first retarder is connected with the output shaft of described the first drive motor, and the input shaft of described the second retarder is connected with the output shaft of described the second drive motor;
The first wheel and the second wheel, described the first wheel is connected with the output shaft of described the first retarder, and described the second wheel is connected with the output shaft of described the second retarder.
2. electri forklift according to claim 1 double-motor AC Driving System, it is characterized in that: also comprise driving battery and cell managing device, described driving battery and described master controller are electrically connected, described driving battery is connected with described cell managing device through communication line, and described cell managing device is connected with described master controller by communication line.
3. electri forklift according to claim 1 double-motor AC Driving System, it is characterized in that: also comprise primary importance sensor and second place sensor, described primary importance sensor setting is in described the first drive motor, described second place sensor setting in described the second drive motor, described primary importance sensor be connected second place sensor respectively by communication line and described the first electric machine controller be connected the second electric machine controller and be connected.
4. electri forklift according to claim 1 double-motor AC Driving System, it is characterized in that: also comprise angular-motion transducer, described angular-motion transducer is arranged in the bearing circle, and described angular-motion transducer is connected with described master controller by communication line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103993873A CN102862476A (en) | 2012-10-19 | 2012-10-19 | Twin-motor alternating-current driving system for electric fork-lift truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103993873A CN102862476A (en) | 2012-10-19 | 2012-10-19 | Twin-motor alternating-current driving system for electric fork-lift truck |
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| CN102862476A true CN102862476A (en) | 2013-01-09 |
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| CN2012103993873A Pending CN102862476A (en) | 2012-10-19 | 2012-10-19 | Twin-motor alternating-current driving system for electric fork-lift truck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107827041A (en) * | 2017-11-29 | 2018-03-23 | 常州机电职业技术学院 | Pure electri forklift and its control method |
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- 2012-10-19 CN CN2012103993873A patent/CN102862476A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107827041A (en) * | 2017-11-29 | 2018-03-23 | 常州机电职业技术学院 | Pure electri forklift and its control method |
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Application publication date: 20130109 |