CN102251545B - Electrical control system for electric excavator - Google Patents
Electrical control system for electric excavator Download PDFInfo
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- CN102251545B CN102251545B CN 201110108547 CN201110108547A CN102251545B CN 102251545 B CN102251545 B CN 102251545B CN 201110108547 CN201110108547 CN 201110108547 CN 201110108547 A CN201110108547 A CN 201110108547A CN 102251545 B CN102251545 B CN 102251545B
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Abstract
The invention discloses an electrical control system for an electric excavator, comprising a power control system, a power supply system and a pilot electrical control system, wherein the power control system comprises a main controller, a motor controller and a main motor; the power supply system comprises a charger, a battery pack, a battery management system and a DC/DC(Direct Current/Direct Current) converter; the battery pack is connected with an external power supply through the charger and is subjected to high-low voltage mutual conversion through the DC/DC converter; the pilot electrical control system comprises a user input mechanism, an electromagnetic valve controller and an electromagnetic proportional valve; two ends of the electromagnetic valve controller are respectively connected with the user input mechanism and the main controller; and the electromagnetic valve controller is used for receiving an instruction from the user input mechanism, controlling pilot flow flowing through the electromagnetic proportional valve and further controlling the movement amount of a valve core of the main valve of the excavator. The electrical control system disclosed by the invention can carry out energy output by adopting electric energy instead of the traditional engine and has the advantages of low noise, greatly-improved work efficiency, strong operation performance of entire machine and high humanism.
Description
Technical field
The present invention relates to the power control system in a kind of engineering mechanical device field, relate in particular to a kind of electrical control system of electric excavator.
Background technology
Traditional hydraulic crawler excavator generally all be take motor and is driven the hydraulic system of complete machine as power source carrys out Host actuating pump, realize the execution of excavator everything, ripe engine technology is that complete machine brings higher reliability, and taking of diesel oil conveniently also carried out backland operation to excavator and provided convenience.Along with the problems such as global environment deterioration, resource scarcity become increasingly conspicuous, energy-saving and emission-reduction have become the research emphasis of each large excavator production firm.Some inborn technical problems of motor, such as inefficiency, energy dissipation more than 50%, the significantly noises that produce in fuel combustion process etc., restricting the development of engineering machinery gradually, in order to address these problems, start at present to adopt motor to carry out the main pump driving, using this as Novel power system, still, with respect to conventional engines, brand-new power mode must be redesigned control mode and electrical system.
Summary of the invention
For the problem of above-mentioned existence, the purpose of this invention is to provide a kind of electrical apparatus control system of electric excavator, adopt electric energy to replace traditional motor and carry out energy output, noise is low, and operating efficiency significantly promotes.
The objective of the invention is to be achieved through the following technical solutions:
A kind of electrical control system of electric excavator wherein, comprising:
Power control system, comprise master controller, electric machine controller and main motor, and rotating speed and torque that described master controller needs by the described main motor output services of described motor controller controls, and then drive excavator main pump drives the complete machine hydraulic system;
Electric power system, comprise charger, battery pack, battery management system and DC/DC converter, described battery pack connects external power source by described charger, and carry out high low-voltage by described DC/DC converter and mutually change, described battery management system two ends are connected with described master controller, described battery pack respectively, monitoring electric energy and battery status during for charging and complete machine work, described battery pack is connected with described power control system; And,
The guiding electric controlling system, comprise user's input mechanism, solenoid valve controller and electromagnetic proportional valve, described solenoid valve controller two ends are connected with described user's input mechanism, described master controller respectively, after described solenoid valve controller receives the instruction of described user's input mechanism, the pilot flow of described electromagnetic proportional valve is flow through in control, and then controls the amount of movement of excavator main valve core.
The electrical control system of above-mentioned electric excavator, wherein, described user's input mechanism is wireless launcher, the wireless receiver separately comprised in described guiding electric controlling system outputs signal to described solenoid valve controller after receiving described wireless launcher signal, and described wireless receiver is by described main controller controls.
The electrical control system of above-mentioned electric excavator, wherein, described user's input mechanism is electric control handle or automatically controlled foot-operated.
The electrical control system of above-mentioned electric excavator, wherein, described electric control handle or the automatically controlled foot-operated electronic control unit of controlling electromagnetic valve that comprises.
The electrical control system of above-mentioned electric excavator, wherein, also comprise sensor, with described master controller, be connected, the job information of system by described sensor feedback to described master controller.
The electrical control system of above-mentioned electric excavator, wherein, described battery pack comprises high-tension battery group and A-battery group, described high-tension battery group converts low tension to by described DC/DC converter and powers to described A-battery group.
Compared with the prior art, beneficial effect of the present invention is:
1, adopt electric energy to replace traditional motor and carry out energy output, noise is low, and operating efficiency significantly promotes;
2, the modification of program of guiding electric controlling system by the master controller coupling between adjusting operation person action and executing agency more accurately, improve the complete machine operability;
3, the wireless module added, can carry out the long distance wireless operation to excavator, makes excavator operate hommization more.
The accompanying drawing explanation
Fig. 1 is the structural representation block diagram of the electrical apparatus control system of electric excavator of the present invention.
The specific embodiment
Below in conjunction with schematic diagram and concrete operations embodiment, the invention will be further described.
As shown in Figure 1, the electrical control system of electric excavator of the present invention specifically comprises: power control system 1, and electric power system 2 and guiding electric controlling system 3, wherein:
Power control system 1 comprises master controller 11, electric machine controller 12 and main motor 13, and master controller 11 controls by electric machine controller 12 rotating speed and the torque that main motor 13 output services need, and then drive excavator main pump drives the complete machine hydraulic system.
Electric power system 2 comprises charger 21, battery pack, battery management system 23 and DC/DC converter 24, battery pack connects external power source by charger 21, external AC 380V electric energy is through charger 21 input complete machines, pattern energy storage in the high-tension battery group with the 512V direct current, and carry out high low-voltage by DC/DC converter 24 and mutually change, battery management system 23 two ends respectively with master controller 11, battery pack connects, monitoring electric energy and battery status during for charging and complete machine work, battery pack comprises 512V high-tension battery group 221 and 24V A-battery group 222, high-tension battery group 221 converts low tension to 222 power supplies of A-battery group by DC/DC converter 24, battery pack provides the energy for complete machine work.
Guiding electric controlling system 3 comprises user's input mechanism 31, solenoid valve controller 32 and electromagnetic proportional valve 33, solenoid valve controller 32 two ends are connected with user's input mechanism, master controller 11 respectively, and the hydraulic oil that main pump needs through reducing valve output low tension loop, produce guide's oil circuit.Solenoid valve controller 32 is controlled the pilot flow that flows through electromagnetic proportional valve 33 after receiving 31 instructions of user's input mechanism, and then controls the amount of movement of excavator main valve core.User's input mechanism 31 is wireless launcher or electric control handle or automatically controlled foot-operated, the wireless receiver 34 separately comprised in wireless launcher 31 and guiding electric controlling system 3 cooperatively interacts, the operator uses the input action instruction of radio operation handle and transmits to wireless receiver 34, wireless receiver 34 inputs to solenoid valve controller 32 by data signal, control the pilot flow that electromagnetic valve flows through, the control of realization to executing agency's action, wireless receiver 34 is controlled by master controller 11, and the wireless module that the present invention adds makes excavator operate hommization more.If user's input mechanism 31 adopts electric control handle or automatically controlled foot-operated, electric control handle or automatically controlled riding are converted to by operator's movable signal the ECU module that voltage signal inputs to the internal control electromagnetic valve, output digit signals is to solenoid valve controller 32, control electromagnetic proportional valve 33, and then the flow of control guide oil, control the amount of movement of excavator main valve core, and and then control executing agency and moved by operator's instruction, executing agency comprises rotary motor, running motor, the executive components such as oil cylinder.Modification of program by master controller 11 is the coupling between adjusting operation person action and executing agency more accurately, improves the complete machine operability.In addition, native system also comprises sensor 4, with master controller 11, is connected, and the job information of system can feed back to master controller 11 by sensor 4.
In sum, the present invention adopts electric energy to replace traditional motor to carry out energy output, and noise is low, and operating efficiency significantly promotes, complete machine strong operability and have more hommization.
Above specific embodiments of the invention be have been described in detail, but the present invention is not restricted to specific embodiment described above, it is just as example.To those skilled in the art, the equivalent modifications that any electrical apparatus control system to this electric excavator carries out and alternative also all among category of the present invention.Therefore, equalization conversion and the modification done without departing from the spirit and scope of the invention, all should contain within the scope of the invention.
Claims (3)
1. the electrical control system of an electric excavator, is characterized in that, comprising:
Power control system, comprise master controller, electric machine controller and main motor, and rotating speed and torque that described master controller needs by the described main motor output services of described motor controller controls, and then drive excavator main pump drives the complete machine hydraulic system;
Electric power system, comprise charger, battery pack, battery management system and DC/DC converter, described battery pack connects external power source by described charger, and carry out high low-voltage by described DC/DC converter and mutually change, described battery management system two ends are connected with described master controller, described battery pack respectively, monitoring electric energy and battery status during for charging and complete machine work, described battery pack is connected with described power control system; And,
The guiding electric controlling system, comprise user's input mechanism, solenoid valve controller and electromagnetic proportional valve, described solenoid valve controller two ends are connected with described user's input mechanism, described master controller respectively, after described solenoid valve controller receives the instruction of described user's input mechanism, the pilot flow of described electromagnetic proportional valve is flow through in control, and then controls the amount of movement of excavator main valve core;
Described user's input mechanism is wireless launcher, and the wireless receiver separately comprised in described guiding electric controlling system outputs signal to described solenoid valve controller after receiving described wireless launcher signal, and described wireless receiver is by described main controller controls.
2. the electrical control system of electric excavator according to claim 1, is characterized in that, also comprises sensor, with described master controller, be connected, the job information of system by described sensor feedback to described master controller.
3. the electrical control system of electric excavator according to claim 1, it is characterized in that, described battery pack comprises high-tension battery group and A-battery group, and described high-tension battery group converts low tension to by described DC/DC converter and powers to described A-battery group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201110108547 CN102251545B (en) | 2011-04-28 | 2011-04-28 | Electrical control system for electric excavator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110108547 CN102251545B (en) | 2011-04-28 | 2011-04-28 | Electrical control system for electric excavator |
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| Publication Number | Publication Date |
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| CN102251545A CN102251545A (en) | 2011-11-23 |
| CN102251545B true CN102251545B (en) | 2013-12-18 |
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| CN 201110108547 Expired - Fee Related CN102251545B (en) | 2011-04-28 | 2011-04-28 | Electrical control system for electric excavator |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015484A (en) * | 2012-12-12 | 2013-04-03 | 熔盛机械有限公司 | Automatic cruise system and method of hydraulic wheel excavator |
| CN107975090A (en) * | 2017-10-16 | 2018-05-01 | 福建新源重工有限公司 | A kind of electric excavator |
| EP3775397A1 (en) * | 2018-04-06 | 2021-02-17 | Volvo Construction Equipment AB | A working machine, a work attachment and a combination thereof |
| CN108562445A (en) * | 2018-06-25 | 2018-09-21 | 徐州徐工挖掘机械有限公司 | A kind of hydraulic traveling mechanism testing equipment and test method |
| CN109624680A (en) * | 2018-12-07 | 2019-04-16 | 湖北金诚信矿业服务有限公司 | A kind of electric LHD |
| CN109555182A (en) * | 2019-01-02 | 2019-04-02 | 湖北金诚信矿业服务有限公司 | A kind of scraper machine control system |
| CN109532443A (en) * | 2019-01-09 | 2019-03-29 | 湖北金诚信矿业服务有限公司 | A kind of electric LHD |
| CN109532444A (en) * | 2019-01-09 | 2019-03-29 | 湖北金诚信矿业服务有限公司 | A kind of electric LHD |
| CN110932276A (en) * | 2019-12-19 | 2020-03-27 | 三一重机有限公司 | Mobile control device and electric excavator system |
| CN111364551A (en) * | 2020-03-25 | 2020-07-03 | 三一重机有限公司 | Excavator fault diagnosis system and method |
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| CN101018915A (en) * | 2005-08-24 | 2007-08-15 | 新履带牵引车三菱有限公司 | Revolving driving device and working machine |
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| JP2007262978A (en) * | 2006-03-28 | 2007-10-11 | Shin Caterpillar Mitsubishi Ltd | Output control device for hybrid working machine and output control method for hybrid working machine |
| JP4295308B2 (en) * | 2006-12-04 | 2009-07-15 | 日立建機株式会社 | Travel drive device for work vehicle |
| KR20090111964A (en) * | 2008-04-23 | 2009-10-28 | 울산대학교 산학협력단 | Hydraulic system of energy saving type |
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|---|---|---|---|---|
| CN101018915A (en) * | 2005-08-24 | 2007-08-15 | 新履带牵引车三菱有限公司 | Revolving driving device and working machine |
| CN101122137A (en) * | 2007-07-09 | 2008-02-13 | 安培 | Fuel oil and electric dual-purpose digging machine |
| CN101725163A (en) * | 2008-10-29 | 2010-06-09 | 神钢建设机械株式会社 | Hybrid working machine |
Non-Patent Citations (1)
| Title |
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| JP特开2007-262978A 2007.10.11 |
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