CN103670750A - Limit power matching control system, method and device and engineering machinery - Google Patents
Limit power matching control system, method and device and engineering machinery Download PDFInfo
- Publication number
- CN103670750A CN103670750A CN201310681373.5A CN201310681373A CN103670750A CN 103670750 A CN103670750 A CN 103670750A CN 201310681373 A CN201310681373 A CN 201310681373A CN 103670750 A CN103670750 A CN 103670750A
- Authority
- CN
- China
- Prior art keywords
- control
- engine
- motor
- rotating speed
- control valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000012545 processing Methods 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
Landscapes
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention relates to the technical field of engineering machinery, and discloses a limit power matching control system, a limit power matching control method, a limit power matching control device and engineering machinery, which are used for effectively improving a flameout phenomenon caused by power mismatching of an engine and further improving the controllability and reliability of a product. The control system includes: an engine control module and a rotational speed controller; the control device is in signal connection with the engine control module and the rotating speed controller respectively and is used for obtaining an engine rotating speed target quantity matched with the load power according to the load power when the rotating speed of the engine is lower than a rotating speed threshold corresponding to the current gear of the rotating speed controller; and outputting a rotating speed adjusting control signal to the engine control module, and controlling the rotating speed of the engine to be increased to a rotating speed target amount.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly relate to a kind of power limit matching control system, method, device and a kind of engineering machinery.
Background technique
In order to reduce the cost of motor, energy efficient, when motor is carried out to type selecting, conventionally and carry out type selecting not according to the maximum power requirement of motor, but carry out type selecting according to the power demand that can meet most of conventional operating mode, so just exist engine loading power under certain operating mode to be greater than the situation of maximum power, now, motor is with regard to likely because underpower produces flame-out.
Power limit match control is a kind of control technique of current engineering machinery normal utilization for preventing engine misses, the form of its realization is varied, great majority are by changing the swash plate pivot angle of main pump in load-reacting pump, to carry out the flow of regulator solution pressing system, thereby reduce engine loading power, peak output under bearing power and motor specific rotation speeds is matched, realize motor nonoverload, not flame-out under some case of heavy load.In addition, electric-control motor all comprises rotational speed governor conventionally, this rotational speed governor has cruise function, setting under rotating speed, if bearing power increases, rotational speed governor can regulate fuel injection quantity automatically, and the increase (need to be subject to the restriction of engine test bench characteristic curve) with available power, also can reduce the flame-out phenomenon of motor to a certain extent by which.
Present inventor finds, if operating grip is too fast or uprush because other factors causes engine loading moment of torsion, motor still easily produces flame-out, and this has seriously restricted the handling and reliability of product.
Summary of the invention
The embodiment of the present invention provides a kind of power limit matching control system, method, device and a kind of engineering machinery, in order to effective improvement, does not mate the flame-out phenomenon producing because of engine power, and then improves the handling and reliability of product.
The power limit matching control system that the embodiment of the present invention provides, comprising:
Engine control module and rotational speed governor;
Control gear, be connected with described rotational speed governor signal with described engine control module respectively, for when the rotating speed of motor is during lower than rotary speed threshold value corresponding to the current gear of rotational speed governor, according to bearing power, obtain the engine speed aim parameter matching with described bearing power; To engine control module output speed, adjust control signal, the rotating speed of control engine is increased to described rotating speed aim parameter.
In technical solution of the present invention, when engine speed is during lower than rotary speed threshold value corresponding to current gear, control gear can be adjusted control signal to the engine control module output speed of motor, make the rotating speed of motor be increased to rotating speed aim parameter, thereby engine power and bearing power are matched, this scheme has effectively been improved because of engine power and has not been mated the flame-out phenomenon producing, and has improved the handling and reliability of product.
Preferably, described control gear, is further connected with the load-sensitive Flow valve signal of load-reacting pump in described load-sensitive hydraulic system; For when the actual torque of motor is greater than the target torque of motor, according to the control algorithm of the difference of the actual torque of motor and target torque and setting, obtains first of load-sensitive Flow valve and control electric current; To described load-sensitive Flow valve, export described first and control electric current.
When the rotating speed of motor declines but is not less than rotary speed threshold value, control gear is controlled electric current to load-sensitive Flow valve output first can regulate main pump delivery, thereby reduces the load torque of motor, improves because of the not enough flame-out phenomenon causing of Engine torque.
Preferably, control system also comprises:
Be arranged at the proportional pressure control valve on the import oil circuit of load-sensitive hydraulic system main control valve;
Be arranged at respectively the first pressure transducer and the second pressure transducer on described main control valve import oil circuit and outlet oil circuit;
Described control gear, further be connected with described proportional pressure control valve, described the first pressure transducer and described the second pressure sensor signal, for when the rotating speed of described motor is during lower than described rotary speed threshold value, according to the inlet outlet pressure differential of main control valve, and the engine speed of storage while being down to described rotary speed threshold value the standard inlet pressure of main control valve obtain second of proportional pressure control valve and control electric current; To proportional pressure control valve, export described second and control electric current, adjust the inlet pressure of main control valve to described standard inlet pressure.
It is unstable that engine speed increases the too fast flow rate of hydraulic system that easily causes, cause actuator to produce speed fluctuation, this scheme is when engine speed increases, to proportional pressure control valve output second, control electric current, oil pressure relief by resize ratio relief valve makes the inlet pressure of main control valve maintain standard inlet pressure (being the inlet pressure of engine speed main control valve while being down to rotary speed threshold value), it is constant that the inlet outlet pressure differential of main control valve can maintain, the stability of flow of hydraulic system, can prevent the speed fluctuation that therefore actuator produces, further improved the handling and reliability of product.
Inventive concept based on identical, the embodiment of the present invention also provides a kind of power limit match control method that is applied to power limit matching control system described in aforementioned techniques scheme, comprising:
When the rotating speed of motor is during lower than rotary speed threshold value corresponding to the current gear of rotational speed governor, according to bearing power, obtain the engine speed aim parameter matching with described bearing power;
To engine control module output speed, adjust control signal, the rotating speed of control engine is increased to described rotating speed aim parameter.
When engine speed is during lower than rotary speed threshold value corresponding to current gear, engine control module output speed to motor is adjusted control signal, make the rotating speed of motor be increased to rotating speed aim parameter, can make engine power and bearing power match, thereby effectively improve because of engine power, do not mate the flame-out phenomenon producing, improve the handling and reliability of product.
Inventive concept based on identical, the embodiment of the present invention also provides a kind of power limit matching control apparatus that is applied to power limit matching control system described in aforementioned techniques scheme, comprising:
Processing equipment, during lower than rotary speed threshold value corresponding to the current gear of rotational speed governor, obtains the engine speed aim parameter matching with described bearing power for the rotating speed when motor according to bearing power;
Output unit, for adjusting control signal to engine control module output speed, the rotating speed of control engine is increased to described rotating speed aim parameter.
This scheme can effectively be improved and not mate the flame-out phenomenon producing because of engine power, improves the handling and reliability of product.
The embodiment of the present invention also provides a kind of engineering machinery, comprises the power limit matching control system described in aforementioned techniques scheme, has preferably handling and reliability.
Accompanying drawing explanation
Fig. 1 is the power limit matching control system structural representation of one embodiment of the invention;
Fig. 2 is the power limit match control block diagram of one embodiment of the invention;
Fig. 3 is the power limit match control method schematic flow sheet of one embodiment of the invention;
Fig. 4 is the power limit matching control apparatus structural representation of one embodiment of the invention.
Reference character:
1-load-reacting pump; 11-main pump; 12-variable cylinder; 13-load-sensitive Flow valve;
2-fuel tank; 3-the first pressure transducer; 4-main control valve; 5-the second pressure transducer;
6-control gear; 7-actuator; 8-proportional pressure control valve; 9-motor; 91-rotational speed governor;
92-engine control module; 201-processing equipment; 202-output unit.
Embodiment
In order effectively improving, not mate the flame-out phenomenon producing because of engine power, and then to improve the handling and reliability of product, the embodiment of the present invention provides a kind of power limit matching control system, method, device and a kind of engineering machinery.In the control system providing, when engine speed is during lower than rotary speed threshold value corresponding to current gear, control gear can be adjusted control signal to the engine control module output speed of motor, make the rotating speed of motor be increased to rotating speed aim parameter, thereby engine power and bearing power are matched, this scheme has effectively been improved because of engine power and has not been mated the flame-out phenomenon producing, and has improved the handling and reliability of product.Below with specific embodiment and be described with reference to the accompanying drawings the present invention.
As depicted in figs. 1 and 2, the power limit matching control system that first embodiment of the invention provides, comprising:
Engine control module 92 and rotational speed governor 91;
Control gear 6, be connected with rotational speed governor 91 signals with engine control module 92 respectively, for when the rotating speed of motor is during lower than rotary speed threshold value corresponding to the current gear of rotational speed governor 91, according to bearing power, obtain the engine speed aim parameter matching with bearing power; To engine control module 92 output speeds, adjust control signal, the rotating speed of control engine is increased to rotating speed aim parameter.
Engine control module 92 also claims ECM(Engine Control Module), there is the function that continuous monitoring control engine are normally worked and turned round.Rotational speed governor 91 can be set many grades of speed (being generally third gear) from low to high, respectively different moments of torsion and the power of corresponding motor.Rotational speed governor 91 has cruise function, and under a certain shelves rotating speed, if bearing power increases, rotational speed governor 91 can regulate fuel injection quantity automatically, with the increase (need to be subject to the restriction of engine test bench characteristic curve) of available power.Rotary speed threshold value refers under current gear, causes the rotating speed critical value of engine misses, the rotary speed threshold value corresponding to each grade of rotating speed of rotational speed governor 91.Preferably, control gear 6 is by CAN(Controller Area Network, controller local area network) bus is connected with rotational speed governor 91 signals with engine control module 92.
Shown in Fig. 1 and Fig. 2, control gear 6, is further connected with load-sensitive Flow valve 13 signals of load-reacting pump 1 in load-sensitive hydraulic system, for obtaining the moment of torsion percentage of motor; According to the rotating speed of motor, obtain the target torque of motor, according to the moment of torsion percentage of motor, obtain the actual torque of motor; When the actual torque of motor is greater than the target torque of motor, according to the control algorithm of the difference of the actual torque of motor and target torque and setting, obtains first of load-sensitive Flow valve 13 and control electric current; To 13 outputs first of load-sensitive Flow valve, control electric current.
As shown in Figure 1, load-sensitive hydraulic system comprises fuel tank 2, load-reacting pump 1, main control valve 4 and actuator 7 etc., and wherein, load-reacting pump 1 specifically comprises main pump 11, variable cylinder 12 and load-sensitive Flow valve 13; The type of actuator 7 is not limit, such as thinking oil hydraulic cylinder or motor etc.When the actual torque of motor is greater than the target torque of motor, at this moment need hydraulic system to carry out power limit match control, control gear 6 obtains first of load-sensitive Flow valve 13 according to the control algorithm of the difference of motor actual torque and target torque and setting and controls electric current, first controls the function of current on load-sensitive Flow valve 13, the swash plate that makes variable cylinder 12 promote main pump 11 swings, the discharge capacity of main pump 11 reduces, the inlet outlet pressure differential of main control valve 4 reduces, flow rate of hydraulic system reduces, thereby reduce the actual torque (being load torque) of motor.The control algorithm of setting is preferably PID(Proportion Integration Differentiation, and proportional-integral-differential is called for short PID) algorithm.
Under certain grade of rotating speed, when the bearing power of motor 9 is not mated with peak output, on the one hand can be by regulating the discharge capacity of main pump 11, reduce the load torque of motor 9, thereby reduce the bearing power of motor 9, on the other hand, rotational speed governor 91 also can automatically regulate fuel injection quantity, the increase of available power under the restriction of engine test bench characteristic curve.These two aspects are all conducive to improve the flame-out phenomenon of motor.But, if operating grip is too fast or uprush because other factors causes engine loading moment of torsion, at this moment load-reacting pump 1 and motor speed controller 91 will have little time response, engine speed declines and further produces flame-out, therefore, above two aspects are when the rotating speed of motor 9 declines but is not less than rotary speed threshold value, and effect is better.
For this defect, in technical solution of the present invention, when engine speed is during lower than rotary speed threshold value corresponding to current gear, control gear 6 can be adjusted control signal to engine control module 92 output speeds of motor 9, make the rotating speed of motor be increased to rotating speed aim parameter, thereby engine power and bearing power are matched.This scheme can increase in time the rotating speed of motor when load-reacting pump 1 and motor speed controller 91 have little time to respond, and effectively improves and does not mate because of engine power the flame-out phenomenon producing, and has improved the handling and reliability of product.
As depicted in figs. 1 and 2, preferred, control system also comprises:
Be arranged at the proportional pressure control valve 8 on the import oil circuit of load-sensitive hydraulic system main control valve 4;
Be arranged at respectively the first pressure transducer 3 and the second pressure transducer 5 on main control valve 4 import oil circuits and outlet oil circuit, the first pressure transducer 3 is for detection of the inlet pressure of main control valve 4, and the second pressure transducer 5 is for detection of the outlet pressure of main control valve 4;
Control gear 6, further be connected with proportional pressure control valve 8, the first pressure transducer 3 and the second pressure transducer 5 signals, for when the rotating speed of motor is during lower than rotary speed threshold value, according to the inlet outlet pressure differential of main control valve 4, and the engine speed of storage while being down to rotary speed threshold value the standard inlet pressure of main control valve obtain second of proportional pressure control valve 8 and control electric current; To proportional pressure control valve 8 outputs second, control electric current, adjust the inlet pressure of main control valve 4 to standard inlet pressure.
When control gear 6 directly regulates the rotating speed of motor 9 to increase, may because of engine speed, to increase the too fast flow rate of hydraulic system that causes unstable, thus cause actuator 7 to produce speed fluctuations, affect the handling of equipment.This scheme is when motor 9 rotating speeds increase, to proportional pressure control valve 8 outputs second, control electric current, oil pressure relief by resize ratio relief valve 8 makes the inlet pressure of main control valve 4 maintain standard inlet pressure (being the inlet pressure of engine speed main control valve 4 while being down to rotary speed threshold value), the inlet outlet pressure differential of main control valve 4 can remain constant like this, the stability of flow of hydraulic system, can prevent that actuator 7 from producing speed fluctuation.When handle returns meta, control gear 6 can send corresponding current signal and make proportional pressure control valve 8 resets (recovering not overflow situation).Visible, when operating grip changes the aperture of main control valve 4, the flow of hydraulic system is only proportional with the aperture of main control valve 4, irrelevant with the rotating speed of motor 9, therefore,, in this programme, the speed of actuator 7 is only subject to the Stroke Control of handle, can by Joystick, accurately control the speed of actuator 7, further improve the handling and reliability of product.
As shown in Figure 3, the inventive concept based on identical, the embodiment of the present invention also provides a kind of power limit match control method that is applied to previous embodiment power limit matching control system, comprising:
When engine speed is during lower than rotary speed threshold value corresponding to current gear, engine control module output speed to motor is adjusted control signal, make the rotating speed of motor be increased to rotating speed aim parameter, can make engine power and bearing power match, thereby effectively improve because of engine power, do not mate the flame-out phenomenon producing, improve the handling and reliability of product.
Preferably, the method is also further comprising the steps:
When the actual torque of motor is greater than the target torque of motor, according to the control algorithm of the difference of the actual torque of motor and target torque and setting, obtains first of load-sensitive Flow valve and control electric current;
To load-sensitive Flow valve output first, control electric current.
Preferably, the method is also further comprising the steps:
When the rotating speed of motor is during lower than rotary speed threshold value, according to the inlet outlet pressure differential of main control valve, and the engine speed of storage while being down to rotary speed threshold value the standard inlet pressure of main control valve obtain second of proportional pressure control valve and control electric current;
To proportional pressure control valve output second, control electric current, adjust the inlet pressure of main control valve to standard inlet pressure.
Each embodiment's beneficial effect is the same, and it is no longer repeated here.
As shown in Figure 4, the inventive concept based on identical, the embodiment of the present invention also provides a kind of power limit matching control apparatus that is applied to previous embodiment power limit matching control system, comprising:
Processing equipment 201, during lower than rotary speed threshold value corresponding to the current gear of rotational speed governor, obtains the engine speed aim parameter matching with bearing power for the rotating speed when motor according to bearing power;
Output unit 202, for adjusting control signal to engine control module output speed, the rotating speed of control engine is increased to rotating speed aim parameter.
Similar with above-mentioned beneficial effect, this scheme can effectively be improved and not mate the flame-out phenomenon producing because of engine power, improves the handling and reliability of product.
Preferred processing equipment 201, while being also greater than the target torque of motor for the actual torque when motor, obtaining first of load-sensitive Flow valve according to the control algorithm of the difference of the actual torque of motor and target torque and setting and controls electric current; Output unit 202, also for controlling electric current to load-sensitive Flow valve output first.
Preferably, processing equipment 201, also for the rotating speed when motor during lower than rotary speed threshold value, according to the inlet outlet pressure differential of main control valve, and the engine speed of storage while being down to rotary speed threshold value the standard inlet pressure of main control valve obtain second of proportional pressure control valve and control electric current; Output unit 202, also, for controlling electric current to proportional pressure control valve output second, adjusts the inlet pressure of main control valve to standard inlet pressure.
Each embodiment's beneficial effect is the same, and it is no longer repeated here.
The embodiment of the present invention also provides a kind of engineering machinery, comprises the power limit matching control system of aforementioned techniques scheme, and the transmitter of this project machinery is difficult for stopping working because of factors such as operating grip are too fast, has preferably handling and reliability.The particular type of engineering machinery is not limit, for example, can be hoist, dumping car, the high engineering truck of act etc.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (10)
1. a power limit matching control system, is characterized in that, comprising:
Engine control module and rotational speed governor;
Control gear, be connected with described rotational speed governor signal with described engine control module respectively, for when the rotating speed of motor is during lower than rotary speed threshold value corresponding to the current gear of rotational speed governor, according to bearing power, obtain the engine speed aim parameter matching with described bearing power; To engine control module output speed, adjust control signal, the rotating speed of control engine is increased to described rotating speed aim parameter.
2. control system as claimed in claim 1, is characterized in that,
Described control gear, is further connected with the load-sensitive Flow valve signal of load-reacting pump in described load-sensitive hydraulic system; For when the actual torque of motor is greater than the target torque of motor, according to the control algorithm of the difference of the actual torque of motor and target torque and setting, obtains first of load-sensitive Flow valve and control electric current; To described load-sensitive Flow valve, export described first and control electric current.
3. control system as claimed in claim 1 or 2, is characterized in that, also comprises:
Be arranged at the proportional pressure control valve on the import oil circuit of load-sensitive hydraulic system main control valve;
Be arranged at respectively the first pressure transducer and the second pressure transducer on described main control valve import oil circuit and outlet oil circuit;
Described control gear, further be connected with described proportional pressure control valve, described the first pressure transducer and described the second pressure sensor signal, for when the rotating speed of described motor is during lower than described rotary speed threshold value, according to the inlet outlet pressure differential of main control valve, and the engine speed of storage while being down to described rotary speed threshold value the standard inlet pressure of main control valve obtain second of proportional pressure control valve and control electric current; To proportional pressure control valve, export described second and control electric current, adjust the inlet pressure of main control valve to described standard inlet pressure.
4. a power limit match control method that is applied to power limit matching control system described in claim 1, is characterized in that, comprising:
When the rotating speed of motor is during lower than rotary speed threshold value corresponding to the current gear of rotational speed governor, according to bearing power, obtain the engine speed aim parameter matching with described bearing power;
To engine control module output speed, adjust control signal, the rotating speed of control engine is increased to described rotating speed aim parameter.
5. controlling method as claimed in claim 4, is characterized in that, also comprises:
When the actual torque of motor is greater than the target torque of motor, according to the control algorithm of the difference of the actual torque of motor and target torque and setting, obtains first of load-sensitive Flow valve and control electric current;
To described load-sensitive Flow valve, export described first and control electric current.
6. the controlling method as described in claim 4 or 5, is characterized in that, also comprises:
When the rotating speed of described motor is during lower than described rotary speed threshold value, according to the inlet outlet pressure differential of main control valve, and the engine speed of storage while being down to described rotary speed threshold value the standard inlet pressure of main control valve obtain second of proportional pressure control valve and control electric current;
To proportional pressure control valve, export described second and control electric current, adjust the inlet pressure of main control valve to described standard inlet pressure.
7. a power limit matching control apparatus that is applied to power limit matching control system described in claim 1, is characterized in that, comprising:
Processing equipment, during lower than rotary speed threshold value corresponding to the current gear of rotational speed governor, obtains the engine speed aim parameter matching with described bearing power for the rotating speed when motor according to bearing power;
Output unit, for adjusting control signal to engine control module output speed, the rotating speed of control engine is increased to described rotating speed aim parameter.
8. control gear as claimed in claim 7, is characterized in that,
Described processing equipment, while being also greater than the target torque of motor for the actual torque when motor, obtaining first of load-sensitive Flow valve according to the control algorithm of the difference of the actual torque of motor and target torque and setting and controls electric current;
Described output unit, also controls electric current for export described first to described load-sensitive Flow valve.
9. control gear as claimed in claim 7 or 8, is characterized in that,
Described processing equipment, also for the rotating speed when described motor during lower than described rotary speed threshold value, according to the inlet outlet pressure differential of main control valve, and the engine speed of storage while being down to described rotary speed threshold value the standard inlet pressure of main control valve obtain second of proportional pressure control valve and control electric current;
Described output unit, also controls electric current for export described second to proportional pressure control valve, adjusts the inlet pressure of main control valve to described standard inlet pressure.
10. an engineering machinery, is characterized in that, comprises the power limit matching control system as described in as arbitrary in claim 1～3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310681373.5A CN103670750B (en) | 2013-12-12 | 2013-12-12 | Limit power matching control system, method and device and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310681373.5A CN103670750B (en) | 2013-12-12 | 2013-12-12 | Limit power matching control system, method and device and engineering machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103670750A true CN103670750A (en) | 2014-03-26 |
| CN103670750B CN103670750B (en) | 2016-04-06 |
Family
ID=50309354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310681373.5A Active CN103670750B (en) | 2013-12-12 | 2013-12-12 | Limit power matching control system, method and device and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103670750B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525905A (en) * | 2014-09-28 | 2016-04-27 | 徐工集团工程机械股份有限公司 | Power self-adaptive control system of rotary drilling rig and power self-adaptive control method of rotary drilling rig |
| CN106438527A (en) * | 2016-11-16 | 2017-02-22 | 中航力源液压股份有限公司 | Flow compensation method and flow compensation device for proportional control pump |
| CN106560552A (en) * | 2016-03-02 | 2017-04-12 | 徐工集团工程机械有限公司 | Walking control method, controller and control system in limit load mode |
| CN106647837A (en) * | 2017-01-20 | 2017-05-10 | 中联重科股份有限公司 | Method for controlling a hydraulic system, controller and machine |
| CN110147039A (en) * | 2019-05-17 | 2019-08-20 | 固高科技(深圳)有限公司 | Hydrauservo System and its control device |
| CN110645108A (en) * | 2019-09-26 | 2020-01-03 | 潍柴动力股份有限公司 | Control method and device for electric control engine, electronic equipment and storage medium |
| CN111561399A (en) * | 2020-04-23 | 2020-08-21 | 中联重科股份有限公司 | Limit load engine speed control method and device and engineering machinery |
| CN111577697A (en) * | 2020-05-31 | 2020-08-25 | 北京三一智造科技有限公司 | Load sensing system and control method |
| CN111963672A (en) * | 2020-09-02 | 2020-11-20 | 三一重机有限公司 | Gear adjusting system, method, device, equipment and electric engineering machinery |
| CN114439818A (en) * | 2022-01-27 | 2022-05-06 | 上海中联重科桩工机械有限公司 | Power system torque control method and system |
| CN115434819A (en) * | 2022-08-12 | 2022-12-06 | 中联重科股份有限公司 | Method and device for controlling power matching, electronic equipment and engineering machinery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030027686A1 (en) * | 2001-08-01 | 2003-02-06 | Aisin Aw Co., Ltd. | Vehicle engine controller |
| CN102021925A (en) * | 2009-09-21 | 2011-04-20 | 北汽福田汽车股份有限公司 | Control system and method for matching excavator power |
| CN102381308A (en) * | 2011-09-21 | 2012-03-21 | 山推工程机械股份有限公司 | Motor vehicle power control method and system |
| CN102392747A (en) * | 2011-06-28 | 2012-03-28 | 三一重工股份有限公司 | Engine revolution speed control method, engine revolution speed control system and cantilever type engineering machine |
| WO2013078915A1 (en) * | 2011-11-28 | 2013-06-06 | 中联重科股份有限公司 | Power matching system for electronic control engine and variable capacity hydraulic pump and the method thereof |
-
2013
- 2013-12-12 CN CN201310681373.5A patent/CN103670750B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030027686A1 (en) * | 2001-08-01 | 2003-02-06 | Aisin Aw Co., Ltd. | Vehicle engine controller |
| CN102021925A (en) * | 2009-09-21 | 2011-04-20 | 北汽福田汽车股份有限公司 | Control system and method for matching excavator power |
| CN102392747A (en) * | 2011-06-28 | 2012-03-28 | 三一重工股份有限公司 | Engine revolution speed control method, engine revolution speed control system and cantilever type engineering machine |
| CN102381308A (en) * | 2011-09-21 | 2012-03-21 | 山推工程机械股份有限公司 | Motor vehicle power control method and system |
| WO2013078915A1 (en) * | 2011-11-28 | 2013-06-06 | 中联重科股份有限公司 | Power matching system for electronic control engine and variable capacity hydraulic pump and the method thereof |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525905A (en) * | 2014-09-28 | 2016-04-27 | 徐工集团工程机械股份有限公司 | Power self-adaptive control system of rotary drilling rig and power self-adaptive control method of rotary drilling rig |
| CN105525905B (en) * | 2014-09-28 | 2019-02-26 | 徐工集团工程机械股份有限公司 | A kind of rotary drilling rig adaptive power control system and method |
| CN106560552A (en) * | 2016-03-02 | 2017-04-12 | 徐工集团工程机械有限公司 | Walking control method, controller and control system in limit load mode |
| CN106560552B (en) * | 2016-03-02 | 2019-06-21 | 徐工集团工程机械有限公司 | Ambulation control method, controller and control system under ultimate load mode |
| CN106438527A (en) * | 2016-11-16 | 2017-02-22 | 中航力源液压股份有限公司 | Flow compensation method and flow compensation device for proportional control pump |
| CN106438527B (en) * | 2016-11-16 | 2018-10-16 | 中航力源液压股份有限公司 | The flow-compensated method and flow compensation device of ratio control pump |
| CN106647837A (en) * | 2017-01-20 | 2017-05-10 | 中联重科股份有限公司 | Method for controlling a hydraulic system, controller and machine |
| CN110147039A (en) * | 2019-05-17 | 2019-08-20 | 固高科技(深圳)有限公司 | Hydrauservo System and its control device |
| CN110645108A (en) * | 2019-09-26 | 2020-01-03 | 潍柴动力股份有限公司 | Control method and device for electric control engine, electronic equipment and storage medium |
| CN111561399A (en) * | 2020-04-23 | 2020-08-21 | 中联重科股份有限公司 | Limit load engine speed control method and device and engineering machinery |
| CN111561399B (en) * | 2020-04-23 | 2021-11-09 | 中联重科股份有限公司 | Limit load engine speed control method and device and engineering machinery |
| CN111577697A (en) * | 2020-05-31 | 2020-08-25 | 北京三一智造科技有限公司 | Load sensing system and control method |
| CN111963672A (en) * | 2020-09-02 | 2020-11-20 | 三一重机有限公司 | Gear adjusting system, method, device, equipment and electric engineering machinery |
| CN111963672B (en) * | 2020-09-02 | 2022-05-03 | 三一重机有限公司 | Gear adjusting system, method, device, equipment and electric engineering machinery |
| CN114439818A (en) * | 2022-01-27 | 2022-05-06 | 上海中联重科桩工机械有限公司 | Power system torque control method and system |
| CN115434819A (en) * | 2022-08-12 | 2022-12-06 | 中联重科股份有限公司 | Method and device for controlling power matching, electronic equipment and engineering machinery |
| CN115434819B (en) * | 2022-08-12 | 2024-04-12 | 中联重科股份有限公司 | Method and device for controlling power matching, electronic equipment and engineering machinery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103670750B (en) | 2016-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103670750B (en) | Limit power matching control system, method and device and engineering machinery | |
| CN108204285B (en) | Multi-curve power matching energy-saving control system and method for hydraulic engineering machinery | |
| CN100590307C (en) | Power controller and method for hydraulic power system | |
| CN102713089B (en) | Power control apparatus for construction machinery | |
| CN103062027B (en) | Control method used for concrete pumping machinery and controller | |
| US10106957B2 (en) | Device and method for controlling hydraulic pump in construction machine | |
| CN103711598B (en) | Hydraulic system adjusting device and method, power matching control system and engineering machinery | |
| CN103790874A (en) | Valveless hydraulic servo system and control method thereof | |
| CN110901415B (en) | Range extender starting control method and system | |
| CN103711170B (en) | Hybrid excavator control method | |
| CN103925091A (en) | Dynamic power matching method, dynamic power matching system and engineering machinery | |
| CN102152782A (en) | Power distribution control method and system for mobile operation machine | |
| EP2669498A2 (en) | System and method for controlling engine torque load | |
| CN101624941B (en) | Energy-saving control method of engineering machinery and constant-resistance moment energy-saving control system of diesel with pressure sense and discharge capacity direct compensation | |
| CN106647837A (en) | Method for controlling a hydraulic system, controller and machine | |
| CN103925089A (en) | Engineering machinery, dynamic energy saving method and dynamic energy saving system | |
| US10982762B2 (en) | Hydrostatic transmission and method for braking using the same | |
| US8676457B2 (en) | System and method for controlling engine torque load | |
| CN114263226B (en) | Speed control method, device and system and working machine | |
| JP6563171B2 (en) | Method for tracking the number of revolutions of a crane drive device and crane drive device | |
| CN106958182B (en) | Wheeled paver traveling system and control method thereof | |
| CN103591087A (en) | Temperature control device and control method of pumping hydraulic system and engineering machinery | |
| CN108457937B (en) | Method and system for inflight meal vehicle electrichydraulic control | |
| CN105421521B (en) | The anti-stall control method of excavator and system | |
| CN109252970B (en) | Engine rotating speed control method, engine and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Yuelu District, Hunan province No. South Road, silver basin, No. 361 Applicant after: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. Address before: 410007 ZOOMLION grand pond Industrial Park, Yuanda Road, Changsha economic and Technological Development Zone, Hunan 2, China Applicant before: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |