CN106436810A - Excavator power matching method and system - Google Patents
Excavator power matching method and system Download PDFInfo
- Publication number
- CN106436810A CN106436810A CN201610963890.5A CN201610963890A CN106436810A CN 106436810 A CN106436810 A CN 106436810A CN 201610963890 A CN201610963890 A CN 201610963890A CN 106436810 A CN106436810 A CN 106436810A
- Authority
- CN
- China
- Prior art keywords
- engine
- power
- pump
- main pump
- torque
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2246—Control of prime movers, e.g. depending on the hydraulic load of work tools
Abstract
The invention discloses an excavator power matching method and system. The excavator power matching system comprises a host controller, the host controller is connected with an engine assembly, an instrument assembly, a work lever shifting disc, a movement stage detecting sensor set, a first pressure transmitter, a second pressure transmitter and a proportional electromagnetic valve on a main pump through wires. The engine assembly is connected with the main pump through a coupler, the first pressure transmitter and the second pressure transmitter are arranged on the main pump, and the main pump is connected with a load through a hydraulic oil path. Optimal rotating speed and optimal torque can be adopted for an engine according to the size of the load, the engine works at an optimal performance point at the stage corresponding to the load, and fuel economy can be greatly improved.
Description
Technical field
The present invention relates to a kind of matching excavator power method and system, belong to hydraulic crawler excavator technical field.
Background technology
Existing matching excavator power system, for mechanical engine, only one specified moment of torsion or power curve,
For electric spraying type engine, then press the different moment of torsion of load weight different points of heavy duties, economy, weight settings or power curve, bear
Carry lighter pattern, numerical value is lower, the fuel economy to improve engine during different loads.This three curves are in same rotating speed
Under moment of torsion or power be different.
For engine, under certain rotating speed, the economy of only one of which bearing power or moment of torsion is best, as long as
The load of engine is certain, and the best rotating speed point of performance and torque point are with regard to only one of which.Situation in above-mentioned a plurality of performance curve
Under, in a certain rotating speed of engine, certainly there is the arranges value of a curve more excellent than the arranges value of another two curves, and also not
It must be optimum value.So, although mechanical engine is compared according to the load weight a plurality of moment of torsion of different setting or power curve
Single 100% performance curve economy to get well, but also only have very limited lifting.
Content of the invention
Object of the present invention is to provide a kind of matching excavator power method and system, so that engine is according to negative
The size carrying uses optimal rotating speed, uses optimal moment of torsion, allows engine to be operated in corresponding to optimal during this load stage
On performance point, fuel economy so can be made to be greatly improved.
Technical scheme：A kind of matching excavator power method, comprises the following steps：
(1) the nominal load power demand of each working stage under each operation range of each dynamic mode of excavator is set first,
Then power demand, the power demand further according to main pump and the power demand of engine accessory power rating of main pump is calculated according to bearing power
Coupling main pump and the power of engine, determine the engine speed under this operating mode further according to engine consumption figure, make engine work
Make in low oil consumption area；
(2) engine speed of the power demand according to main pump and determination calculates the specified control electricity of the main pump under this operating mode
Stream, makes power and the load matched of main pump, and the power demand of the power demand according to main pump and engine accessory power rating etc. calculates simultaneously
The torque demand of main pump and accessory torque demand；
(3) the torque demand setting EFI of the torque demand according to the main pump under the rotating speed determining and engine accessory power rating starts
Nominal torque value under this rotating speed for the machine, and finally give a best torque curve it is desirable to engine producer is in engine control
Set up above-mentioned best torque curve in the program of device processed, excavator when carrying out power match, engine under each dynamic mode
All using above-mentioned best torque curve.
In said method, in operation handle attonity, only give a base current, play certain energy-saving effect；If having
Action, using 500～1000ms time elevator pump proportion magnetic valve control electric current to rated current, to avoid action initial
It is excessive that moment falls speed.
In said method, the console controller on engine judges the work under current working according to the data about sensor
Be in which stage, console controller works from the engine controller reading real-time torque percentage of engine with this operating mode
The best torque in stage is compared, if being more than best torque, reducing pump electric current to reduce load, making real-time moment of torsion be equal to optimal torsion
Square, it is to avoid engine overload.
In said method, if the real-time torque percentage of engine is less than best torque, and pump pressure has been more than pressure regulation power, then
Increase pump electric current, make real-time moment of torsion reach best torque；If pump pressure has been less than pressure regulation power, do not adjust.
Meanwhile, the present invention also provides a kind of matching excavator power system for realizing said method, including main frame control
Device processed, described console controller is passed through wire and is passed with engine assembly, instrument assembly, operation range driver plate, action phase detection
Proportion magnetic valve on sensor group, pump one pressure transmitter, pump two pressure transmitter and main pump is connected；Described engine assembly
It is connected with main pump by shaft coupling, pump one pressure transmitter and pump two pressure transmitter, described main pump are provided with main pump
It is connected with load by hydraulic circuit.
In above-mentioned matching excavator power system, described engine assembly is connected with engine controller.
In above-mentioned matching excavator power system, it is bonded with model selection that described instrument assembly passes through control line.
Due to adopting technique scheme, it is an advantage of the current invention that：The present invention is according to each work of each dynamic mode of excavator
Make the nominal load power demand of each working stage under gear to calculate pump power demand, further according to pump power demand and engine
The power demand of annex etc., coupling pump and the power of engine, determine the engine under this operating mode further according to engine consumption figure
Rotating speed, makes engine be operated in low oil consumption area；Then calculated under this operating mode according to the engine speed of pump power demand and determination
The specified control electric current of pump, make power and the load matched of pump, simultaneously the power according to pump power demand and engine accessory power rating etc.
Demand calculates torque demand and the accessory torque demand of pump；Attached finally according to the pump torque demand under the rotating speed determining and engine
The torque demand setting nominal torque value under this rotating speed for the BBG of part etc., and finally give a best torque song
Line it is desirable to engine producer sets up above-mentioned best torque curve in its control, when carrying out power match, each power of excavator
Under pattern, engine is all using above-mentioned best torque curve.Therefore, the present invention can make engine according to the size of load using
Good rotating speed, using optimal moment of torsion, allow engine be operated in corresponding on optimal performance point during this load stage, such energy
Fuel economy is made to be greatly improved.
Brief description
Fig. 1 is the structural representation of the matching excavator power system of the present invention；
Fig. 2 is the flow chart of the matching excavator power method of the present invention.
Description of reference numerals：1- console controller, 2- electric-control motor, 3- instrument assembly, 4- operation range driver plate, 5- moves
Make stage detection sensor group, 6- pump one pressure transmitter, 7- pump two pressure transmitter, 8- pump proportion magnetic valve, 9- loads,
10- engine controller, 11- mode selecting key, 12- main pump.
Specific embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, with reference to the accompanying drawings and examples to this
Bright it is described in further detail.
Embodiments of the invention：The structural representation of the matching excavator power system of the present invention is as shown in figure 1, include master
Machine controller 1, described console controller 1 passes through wire and electric-control motor 2, instrument assembly 3, operation range driver plate 4, action rank
Pump proportion magnetic valve 8 on section detection sensor group 5, pump one pressure transmitter 6, pump two pressure transmitter 7 and main pump 12 is connected
Connect；Described electric-control motor 2 is connected with main pump 12 by shaft coupling, and electric-control motor 2 and engine controller 10 connect simultaneously
Connect, pump one pressure transmitter 6 and pump two pressure transmitter 7 be provided with main pump 12, described main pump 12 pass through hydraulic circuit with
Load 9 is connected；Described instrument assembly 3 is connected with mode selecting key 11 by control line.
When matching excavator power is carried out using above-mentioned matching excavator power system, can be carried out using following steps：
(1) first Setting pattern selection key 11 in each mode, each work under each operation range for the operation range driver plate 4
The nominal load power demand in stage, such as：Economic model, 8 grades, excavation phase is set to 160KW, then calculates further
The power demand that need to ask for electric-control motor 2 to main pump 12 is 168KW, asks for fan, compressor of air conditioner etc. to producer and starts
The general power of machine annex is 20KW, and now the bearing power of electric-control motor 2 is 188KW, and being determined according to engine consumption figure should
The most economical rotating speed of the electric-control motor 2 under operating mode is 1700 revs/min, makes electric-control motor 2 be operated in low oil consumption area；
(2) 1700 revs/min of the rotating speed of the electric-control motor 2 of the power demand 168KW according to main pump 12 and determination, calculates
The specified control electric current obtaining the pump proportion magnetic valve 8 on main pump 12 under this operating mode is 565mA, makes power and the load 9 of main pump 12
Mate, the torque demand that the power demand of the power demand according to main pump 12 and engine accessory power rating etc. calculates main pump 12 simultaneously is
944Nm, accessory torque demand 95Nm；
(3), under the rotating speed according to the electric-control motor 2 determining, the moment of torsion of the torque demand of main pump 12 and engine accessory power rating needs
Ask and obtain nominal torque value under this rotating speed for the electric-control motor 2 for 1039Nm, equally, the power under other each operating modes is set,
Calculate the torque value that must correspond under rotating speed, each torque value is linked up and obtains a best torque curve, when carrying out power match,
Excavator under each pattern that mode selecting key 11 selects electric-control motor 2 all using above-mentioned best torque curve.
(4) link up with engine producer, be that the program of engine controller 10 increases an above-mentioned best torque control song
Line；
(5) engine speed under each working stage of each operation range of each dynamic mode of setting one and pump control electric current value
Form；
(6) program of console controller 1 is set to regardless of in what pattern, gear, working stage, all to engine control
Device 10 sends the instruction calling above-mentioned best torque curve；
(7) console controller 1 is transmitted by instrument assembly 3 according to mode selecting key 11 mode select signal, work shelves
Gear selection signal and the working stage signal being checked according to action phase detection sensor group 5 that position driver plate 4 transmits, call
Corresponding rotating speed and current value control the rotating speed of engine 2 and the electric current of pump proportion magnetic valve 8.
(8) when console controller 1 is arranged on operation handle attonity, only give a base current, play certain energy-conservation effect
Really, if there being action, using 500～1000ms time elevator pump proportion magnetic valve 8 control electric current to rated current, to avoid
It is excessive that action initial instant falls speed.
(9) console controller 1 judges the work under current working according to the data that action phase detection sensor group 5 detects
Be in which stage, console controller 1 reads real-time torque percentage and this operating mode of engine 2 from engine controller 10
Best torque value under the rotating speed that lower working stage determines is compared, if being more than best torque, reduces the electricity of pump proportion magnetic valve 8
Stream, to reduce load, makes real-time moment of torsion be equal to best torque, it is to avoid engine 2 transships.
If real-time torque percentage is less than best torque, and pump one pressure transmitter 6 or pump two pressure transmitter 7 detect
Pressure be more than pressure regulation power, then increase pump proportion magnetic valve 8 electric current, make real-time moment of torsion reach best torque；If being less than
Pressure regulation power, then do not adjust.
Claims (7)
1. a kind of matching excavator power method is it is characterised in that comprise the following steps：
(1) the nominal load power demand of each working stage under each operation range of each dynamic mode of excavator is set first, then
Calculate the power demand of main pump, the power demand coupling of the power demand further according to main pump and engine accessory power rating according to bearing power
Main pump and the power of engine, determine the engine speed under this operating mode further according to engine consumption figure, so that engine is operated in
Low oil consumption area；
(2) engine speed of the power demand according to main pump and determination calculates the specified control electric current of the main pump under this operating mode,
Make power and the load matched of main pump, the power demand of the power demand according to main pump and engine accessory power rating etc. calculates main pump simultaneously
Torque demand and accessory torque demand；
(3) the torque demand setting BBG of the torque demand according to the main pump under the rotating speed determining and engine accessory power rating exists
Nominal torque value under this rotating speed, and finally give a best torque curve it is desirable to engine producer is in engine controller
Program in set up above-mentioned best torque curve, when carrying out power match, under each dynamic mode, engine all makes excavator
With above-mentioned best torque curve.
2. matching excavator power method according to claim 1 it is characterised in that：In operation handle attonity, only
To a base current, play certain energy-saving effect；If there being action, using the time elevator pump ratio electromagnetism of 500～1000ms
The control electric current of valve is to rated current, excessive to avoid action initial instant to fall speed.
3. matching excavator power method according to claim 1 it is characterised in that：Console controller root on engine
Judge according to the data about sensor which stage the work under current working is in, console controller is read from engine controller
Taking the real-time torque percentage of engine compared with the best torque of working stage under this operating mode, if being more than best torque, reducing pump
Electric current, to reduce load, makes real-time moment of torsion be equal to best torque, it is to avoid engine overload.
4. matching excavator power method according to claim 1 it is characterised in that：If the real-time torque percentage of engine
Less than best torque, and pump pressure has been more than pressure regulation power, then increase pump electric current, make real-time moment of torsion reach best torque；If pump pressure
Power has been less than pressure regulation power, then do not adjust.
5. a kind of matching excavator power system, including console controller (1) it is characterised in that：Described console controller (1) is led to
Cross wire and engine assembly (2), instrument assembly (3), operation range driver plate (4), action phase detection sensor group (5), pump
Proportion magnetic valve (8) on one pressure transmitter (6), pump two pressure transmitter (7) and main pump (12) is connected；Described engine
Assembly (2) is connected with main pump (12) by shaft coupling, is provided with pump one pressure transmitter (6) and pump two is pressed on main pump (12)
Power transmitter (7), described main pump (12) is passed through hydraulic circuit and is connected with load (9).
6. matching excavator power system according to claim 5 it is characterised in that：Described engine assembly (2) with send out
Motivation controller (10) connects.
7. matching excavator power system according to claim 5 it is characterised in that：Described instrument assembly (3) passes through control
Line processed is connected with mode selecting key (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610963890.5A CN106436810B (en) | 2016-10-28 | 2016-10-28 | A kind of matching excavator power method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610963890.5A CN106436810B (en) | 2016-10-28 | 2016-10-28 | A kind of matching excavator power method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106436810A true CN106436810A (en) | 2017-02-22 |
| CN106436810B CN106436810B (en) | 2019-02-26 |
Family
ID=58179840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610963890.5A Active CN106436810B (en) | 2016-10-28 | 2016-10-28 | A kind of matching excavator power method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106436810B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642121A (en) * | 2017-09-13 | 2018-01-30 | 上海华兴数字科技有限公司 | A kind of excavator energy-conservation prompting control method and system |
| CN108104191A (en) * | 2017-12-21 | 2018-06-01 | 柳州柳工挖掘机有限公司 | Excavator work gear intelligent control method |
| CN108561234A (en) * | 2018-04-03 | 2018-09-21 | 徐工集团工程机械股份有限公司 | A kind of mechanical drive road roller control system and its control method with torque limit protection |
| CN110258709A (en) * | 2019-07-08 | 2019-09-20 | 山重建机有限公司 | A kind of method of excavator Auto-matching difference operating condition |
| CN110965607A (en) * | 2019-12-17 | 2020-04-07 | 上海华兴数字科技有限公司 | Excavator engine control method and system |
| CN113062397A (en) * | 2021-03-26 | 2021-07-02 | 大连理工大学 | Excavator power matching method based on power matching rule base |
| CN114396375A (en) * | 2022-02-22 | 2022-04-26 | 贵州詹阳动力重工有限公司 | Limit power control method of electric engineering machinery |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007177661A (en) * | 2005-12-27 | 2007-07-12 | Jtekt Corp | Drive control device for vehicle |
| CN102943498A (en) * | 2012-11-08 | 2013-02-27 | 三一重机有限公司 | Energy-saving control method for excavator and excavator |
| CN103062027A (en) * | 2012-12-24 | 2013-04-24 | 北汽福田汽车股份有限公司 | Control method used for concrete pumping machinery and controller |
| CN103277201A (en) * | 2013-04-24 | 2013-09-04 | 三一重机有限公司 | Electronic-controlled engine, energy-saving method of electronic-controlled engine, energy-saving device of electronic-controlled engine and engineering machine |
| CN103552929A (en) * | 2013-11-12 | 2014-02-05 | 徐工集团工程机械股份有限公司 | Method and device for controlling engine of load-based crawler crane |
| CN105221277A (en) * | 2014-07-01 | 2016-01-06 | 徐工集团工程机械股份有限公司 | Crane engine Poewr control method and system |
| CN105589988A (en) * | 2014-11-17 | 2016-05-18 | 斗山工程机械（山东）有限公司 | Power matching calculation method and device for loader |
| CN205532900U (en) * | 2016-02-05 | 2016-08-31 | 贵州詹阳动力重工有限公司 | Electric fuel injection engine excavator electrical system |
| CN205532267U (en) * | 2016-03-29 | 2016-08-31 | 徐工集团工程机械股份有限公司 | Improve control system who digs rig unit head operating speed soon |
-
2016
- 2016-10-28 CN CN201610963890.5A patent/CN106436810B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007177661A (en) * | 2005-12-27 | 2007-07-12 | Jtekt Corp | Drive control device for vehicle |
| CN102943498A (en) * | 2012-11-08 | 2013-02-27 | 三一重机有限公司 | Energy-saving control method for excavator and excavator |
| CN103062027A (en) * | 2012-12-24 | 2013-04-24 | 北汽福田汽车股份有限公司 | Control method used for concrete pumping machinery and controller |
| CN103277201A (en) * | 2013-04-24 | 2013-09-04 | 三一重机有限公司 | Electronic-controlled engine, energy-saving method of electronic-controlled engine, energy-saving device of electronic-controlled engine and engineering machine |
| CN103552929A (en) * | 2013-11-12 | 2014-02-05 | 徐工集团工程机械股份有限公司 | Method and device for controlling engine of load-based crawler crane |
| CN105221277A (en) * | 2014-07-01 | 2016-01-06 | 徐工集团工程机械股份有限公司 | Crane engine Poewr control method and system |
| CN105589988A (en) * | 2014-11-17 | 2016-05-18 | 斗山工程机械（山东）有限公司 | Power matching calculation method and device for loader |
| CN205532900U (en) * | 2016-02-05 | 2016-08-31 | 贵州詹阳动力重工有限公司 | Electric fuel injection engine excavator electrical system |
| CN205532267U (en) * | 2016-03-29 | 2016-08-31 | 徐工集团工程机械股份有限公司 | Improve control system who digs rig unit head operating speed soon |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642121A (en) * | 2017-09-13 | 2018-01-30 | 上海华兴数字科技有限公司 | A kind of excavator energy-conservation prompting control method and system |
| CN107642121B (en) * | 2017-09-13 | 2020-12-04 | 上海华兴数字科技有限公司 | Energy-saving prompt control method and system for excavator |
| CN108104191A (en) * | 2017-12-21 | 2018-06-01 | 柳州柳工挖掘机有限公司 | Excavator work gear intelligent control method |
| CN108561234A (en) * | 2018-04-03 | 2018-09-21 | 徐工集团工程机械股份有限公司 | A kind of mechanical drive road roller control system and its control method with torque limit protection |
| CN110258709A (en) * | 2019-07-08 | 2019-09-20 | 山重建机有限公司 | A kind of method of excavator Auto-matching difference operating condition |
| CN110258709B (en) * | 2019-07-08 | 2021-07-30 | 山重建机有限公司 | Method for automatically matching different working conditions of excavator |
| CN110965607A (en) * | 2019-12-17 | 2020-04-07 | 上海华兴数字科技有限公司 | Excavator engine control method and system |
| CN110965607B (en) * | 2019-12-17 | 2022-02-08 | 上海华兴数字科技有限公司 | Excavator engine control method and system |
| CN113062397A (en) * | 2021-03-26 | 2021-07-02 | 大连理工大学 | Excavator power matching method based on power matching rule base |
| CN113062397B (en) * | 2021-03-26 | 2022-05-10 | 大连理工大学 | Power matching rule base-based power matching method for excavator |
| CN114396375A (en) * | 2022-02-22 | 2022-04-26 | 贵州詹阳动力重工有限公司 | Limit power control method of electric engineering machinery |
| CN114396375B (en) * | 2022-02-22 | 2023-12-22 | 贵州詹阳动力重工有限公司 | Limiting power control method of electric chemical engineering machinery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106436810B (en) | 2019-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106436810A (en) | Excavator power matching method and system | |
| CN100523540C (en) | Hydraulic speed buffer control system and control method | |
| JP4315248B2 (en) | Control device for traveling work vehicle | |
| JP4437771B2 (en) | Engine control device for traveling work machine | |
| US8606471B2 (en) | Method and a system for operating a working machine | |
| CN110905674A (en) | Crane power matching control method and system and crane | |
| KR20060024339A (en) | Control device for working vehicle | |
| CN103670750B (en) | Power limit matching control system, method, device and engineering machinery | |
| CN101711221B (en) | A full hydraulic AC electrical forklift | |
| CN101268286A (en) | Working fluid cooling control system of construction machine | |
| US20160340871A1 (en) | Engine and Pump Control Device and Working Machine | |
| CN109437021B (en) | Energy-saving control method and energy-saving control system for crane | |
| CN109715889A (en) | The control system of engineering machinery and the control method of engineering machinery | |
| CN102079482A (en) | Control method and controller for crane and its composite actions of crane | |
| CN201801313U (en) | Crane and controller for compound action of crane | |
| CN103334843B (en) | Land lever variable-power control system | |
| CN103754781B (en) | A kind of hydraulic system and crane | |
| CN105545503A (en) | Engine energy-saving control method and system | |
| CN105040769A (en) | Integrated control apparatus and method for engine and hydraulic pump in construction machine | |
| CN104827931A (en) | Method and system of controlling working mode of electric vehicle, and electric vehicle having same | |
| CN103925090B (en) | Dynamic energy conservation system, dynamic energy conservation method and engineering machinery | |
| CN103032184B (en) | A kind of controlling method of engine speed, equipment and system | |
| CN205532900U (en) | Electric fuel injection engine excavator electrical system | |
| CN102301112A (en) | Engine output control device | |
| CN105074094B (en) | Work machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |